ThinkPad Dock I

Introduction: The ThinkPad Dock I is an expansion unit adding desktop-like connectivity, stereo speakers, and features to early ThinkPads.

Checkout Guide

Use the following procedure as a guide for computer problems.

NOTE: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.

1. Obtain the failing symptoms in as much detail as possible.- Verify the symptoms by attempting to recreate the failure by  running the diagnostic test or by repeating the same operation.

   NOTE:  To run the diagnostics, refer to 'How to Run the Diagnostics'.

   • Use the following table with the verified symptom to determine  which page to go to. Search the symptoms column  and find the description  that best matches your symptom, then go to the page shown in the Go to column.

Symptoms (Verified)	Go to
Power failure. (The power	'Power Systems Checkout'.
indicator does not go on
or stay on.)
POST does not complete.	'Symptom-to-FRU Index', and then use the
No beeps or error codes are indicated.	'No-Beep Symptoms' table.
POST beeps, but no error codes	'Symptom-to-FRU Index', and then
are displayed.	use the 'Beep Symptoms'
POST detected an error and	'Symptom-to-FRU Index', and then
displayed numeric error codes.	use the 'Numeric Error Codes' table.
The diagnostic test detected an	'FRU Codes'.
error and displayed a FRU code.
The configuration is not the same	'Checking the Installed Devices List'.
as the installed devices.
Other symptoms	'Symptom-to-FRU Index',
(such as LCD display problems).	and then use the
	'Other Symptoms' table.
Symptoms cannot be recreated.	Use the customer reported symptoms
(Intermittent problems.)	and go to 'Symptom-to-FRU Index'.

  How to Run the Diagnostics

Use either the TrackPoint III or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK.

NOTE: Make sure you have the following tools available before starting the tests:

• Wrap Plug (P/N 72X8546) for the serial and parallel connector tests.
• PC Test Card (P/N 35G4680 35G4703) for the PCMCIA tests.
• Scratch diskette for the FDD1 or FDD2 tests.
• Any data CD for the CD-ROM drive test.

1. Press and hold the F1 key, then power on the computer.  Hold the F1 key down until the Easy-Setup screen appears.- Select Test and press Enter.- Select a device and press Enter to run the test.- The test progress screen appears.- OK appears when the test ends without any errors.- Start the Advanced Diagnostic test by pressing Ctrl+A on the basic diagnostic menu screen.- Select Tool to install the tools.- Select a device, press the Spacebar and  install the tool. Multiple devices can be selected by repeating  this step.

             A **OK** mark appears beside the selected devices.
            - Select **OK** and press Enter
               if the selection is OK.- Select a device and press Enter to start the tests.- Select **Test All** to test all devices.- Select **Loop Test** to run the tests in a repeated loop.
   
                     A loop option menu appears in which a device loop or all-device
                     loop can be selected.
                     Select a device and press the **Spacebar** to select
                     a device. Repeat this step to select multiple devices.
                     Press Enter to start the diagnostic loop. If no device is selected,
                     all device tests are looped.
   
                    - To exit the loop,
                       keep pressing **Ctrl+Pause** until the test exits.
                       A beep sounds to notify
                       that the exit interrupt is sensed
                       by the test program.
   

  Symptom-to-FRU Index

The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first.

NOTE: Perform the FRU replacement or actions in the sequence shown in the FRU/Action columns. If a FRU did not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU.

This index can also be used to help you decide which FRUs to have available when servicing a computer.

Numeric error codes show the errors detected in POST or system operation. In the following error codes, X can be any number.

If no codes are available, use narrative symptoms.

If the symptom is not listed, go to 'Undetermined Problems'.

NOTE: For any IBM device not supported by the diagnostic codes in this ThinkPad computer, see the manual for that device.

  Numeric Error Codes

Symptom / Error	FRU / Action in Sequence
10X 101 Interrupt failure. 102 Timer failure. 103 Timer interrupt failure. 104 Protected mode failure. 105 Last 8042 command not accepted. 107 NMI test failure. 108 Timer bus test failure. 109 Low meg-chip select test.	1. System Board
110 (Planar parity.)	1. Go to 'Memory Checkout' 2. DIMM 3. The computer is attached to a Port Replicator. 4. System Board
111 (I/O parity.)	1. Go to 'Memory Checkout' 2. Port Replicator 3. System Board
158 (HDP was not set even though the supervisor password is set.)	1. Set an HDP for the hard disk drive.
159 (HDP is not set the same as the supervisor password.)	1. Set a correct HDP for the hard disk drive.
161 (Dead battery.)	1. Go to 'Checking the Backup Battery'. 2. Backup Battery 3. System Board
163 (Time and Date were not set.)	1. Set Time and Date. 2. Backup Battery 3. System Board
173 (Configuration data was lost.)	1. Select OK in the error screen, then set the time and date 2. Backup Battery 3. System Board
174 (Configuration error: Perform 'Checking the Installed Devices List' before changing any FRUs.)	1. Check Device Configuration. 2. System Board 3. Diskette Drive Assembly 4. Hard Disk Drive Assembly
175, 177, 178 175 EEPROM CRC #1 error. 177 Supervisor password check sum error. 178 EEPROM is not functional.	1. System Board
183 (Incorrect password entered at the supervisor password prompt.)	1. Have the user examine the password.
184 (POP check sum error.)	1. Reset the POP (power-on password) in Easy-Setup.
185 (The startup sequence is not valid. Suspect that power was off when the startup sequence was being updated.)	1. Reset the startup sequence in Easy-Setup.
186	1. System Board
188 (EEPROM CRC #2 error.)	1. Set the system identification using the ThinkPad Hardware Maint. Diskette.
190 (Depleted battery pack was installed when the power was on.)	1. Go to 'Checking the Battery Pack'
191XX (PM initialization error.)	1. System Board 2. CPU card
195 (The configuration read from the hibernation area does not match the the actual configuration.)	1. Check if the configuration was changed. For example, check if the hard disk drive is from another computer Also, when a DIMM card has been installed, unsecured DIMM latches can result in this error. Make sure the DIMM is securely seated and fully latched into place.
196 (Read error occurred in the hibernation area of the HDD.)	1. Run the hard disk drive test. 2. Hard Disk Drive
199XX (Resume error.)	1. System Board
1XX	1. System Board
2XX 201 Memory data error. 202 Memory line error 00-15. 203 Memory line error 16-23. 205 Memory test failure on on-board memory. 221 ROM to RAM remap error.	1. Go to 'Memory Checkout'. 2. DIMM 3. System Board
301, 303, 304, 305, 3XX (301: Keyboard error.)	1. Go to 'Keyboard/Aux. Input Device Checkout' 2. Keyboard 3. External Numeric Keypad 4. External Keyboard 5. Keyboard/Mouse Cable 6. Keyboard Card 7. System Board
601, 6XX (601: Diskette drive or controller error.)	1. Go to 'Diskette Drive Test'. 2. Diskette Drive Assembly 3. Diskette 4. System Board
602 (Diskette read error.)	1. Go to 'Diskette Drive Test'. 2. Diskette 3. Diskette Drive Assembly
604 (Unacceptable ID was read from the diskette drive.)	1. Go to 'Diskette Drive Test'. 2. Diskette Drive Assembly 3. System Board
11XX 1101: Serial_A test failure.	1. Serial Device 2. Communication Cable 3. System Board
12XX 1201: Serial_B test failure.	1. System Board
17XX 1701 Hard disk controller failure. 1780, 1790 Hard disk 0 error. 1781, 1791 Hard disk 1 error.	1. Hard Disk Drive 2. System Board
24XX (2401: System board video error.)	1. System Board
808X 8081 PCMCIA presence test failure. (PCMCIA revision number also checked.) 8082 PCMCIA register test failure.	1. Reseat the PCMCIA Connector. 2. PCMCIA Slot Assembly 3. PCMCIA Device 4. System Board
860X (Pointing device error when TrackPoint III is disabled.) 8601 System bus error-8042 mouse interface. 8602 External mouse error. 8603 System bus error or mouse error.	1. External Mouse 2. External Keyboard 3. System Board
861X (Pointing device error when TrackPoint III is enabled.)	1. Reseat the keyboard connector. 2. Reseat the keyboard TrackPoint III cable on the keyboard card.
8611 System bus error-I/F between 8042 and IPDC. 8612 TrackPoint error. 8613 System board or TrackPoint error.	See '1070 Keyboard Unit'. 3. Keyboard 4. External Mouse 5. 4System Board
I9990301	1. Reseat the boot device.
I9990302	2. Check the startup sequence for
I9990305 I9990301 Hard disk error. I9990302 Invalid hard disk boot record. I9990305 No bootable device.	the correct boot device. 3. Check that the operating system has no failure and is installed correctly.
I9990303 (Bank 2 flash ROM check sum error.)	1. System Board
Other codes not listed above	1. Go to 'Undetermined Problems'.

FRU Codes

If an error is detected by the diagnostic tests, a four-digit FRU code is displayed. The FRU code indicates two suspected FRUs. Replace the FRU that is indicated by the two leftmost digits first, then replace the FRU indicated by the two rightmost digits. No FRU is assigned to code 00. If only one FRU is suspected, the other FRU code is filled with zeros. See the referenced page before replacing the FRU.

FRU Code	FRU/Action
10	System Board
11	CPU Card
20	Memory (See 'Memory Checkout'.)
30	Reserved
32	External Keyboard
33	External Mouse
40	LCD Assembly
45	External CRT
50	Reseat the Diskette Drive (FDD-1) Diskette Drive (FDD-1)
51	Reseat the Diskette Drive (FDD-2) Diskette Drive (FDD-2)
60	Reseat the Hard Disk Drive (HDD) Hard Disk Drive (HDD)
72	PCMCIA Slot Assembly
90	CD-ROM Drive

If the problem remains after replacement of the FRUs, go to 'Undetermined Problems'.

No-Beep Symptoms

Symptom / Error	FRU / Action in Sequence
No beep, power-on indicator	1. for TP-2626 Go to 'Power Systems Checkout'.
not on and a blank LCD during POST.	1. for TP-2635 Go to 'Power Systems Checkout'. 2. System Board 3. Power sources
No beep, power-on indicator on, and a blank LCD during POST.	1. System Board 2. CPU Card
No beep, power-on indicator on, and a blinking cursor only during POST.	1. System Board 2. CPU Card
No beep during POST but but system runs correctly.	1. Turn the volume up and check the speaker. 2. Speaker / Volume Switch Assembly 3. (2635-380) Systemboard 4. (2635-380) Subcard

Beep Symptoms

Symptom / Error	FRU / Action in Sequence
Continuous beeps.	System Board
One beep and a blank, unreadable, or flashing LCD.	1. Reseat the LCD connector. 2. LCD Assembly 3. System Board
One beep, and the message 'Unable to access boot source'.	1. Boot device 2. System Board
One long beep, two short beeps, and a blank or unreadable LCD.	1. System Board 2. LCD Unit
One long beep followed by four short beeps each time the power switch is operated. (System cannot power on because of low battery voltage.)	Connect the AC Adapter or install a fully charged battery.
One beep every second. (System shuts down because of low battery voltage.)	Connect the AC Adapter or install a fully charged battery (allows system to complete shutdown before changing the battery)
Two short beeps with error codes.	POST error. See 'Numeric Error Codes'
Two short beeps with blank screen.	System Board

ThinkPad Common Parts List

Common Parts Listing

This section contains FRUs common to most IBM portable, laptop, and notebook computers.

External Diskette Drives

5.25-Inch Diskette Drives:
360KB External (4869-001)	72X6759
360KB External (4869-501)	72X6768
1.2MB External (4869-002)	15X7993
1.2MB External (4869-502)	15X7994
Hard Disk Drive.
1.2GB HDD (for all 9545)	85G8549
5.25-Inch Drive Adapter	72X6757
5.25-Inch Drive Adapter/A	15F7996
5.25-Inch External Diskette Drive Cable
(from system board to adapter)	27F4211
Diskette Drive Bus Adapter	72X8524

CD-ROM Drives

Enhanced Internal CD-ROM II Drive
(Eject button below slot)	61G1901
Internal CD-ROM I Drive
(Eject button above slot)	81F7930
Terminator Kit (for 81F7930)	59F3530
Cleaning Kit (for 81F7930)
(Disks, CD Caddy)	59F3562
Internal CD-ROM II Drive
(Eject button below slot)	92F0084
Terminator Kit (for 92F0084)	92F0082
Media Kit (for 92F0084)
(No cleaning necessary,
Test Disk, CD Caddy)	31F4232
Signal Cable	34F0043
Power Cable	72X8521
Remote ID Switch Cable (3510)	92F0086
Audio Card, Cable, Screws (3510)	92F0085
CD Caddy	22F9419
Rail Kit (3510)	34F0041
Headphones	53F3610

SCSI Adapters, Terminators, Cables

SCSI Adapter/A (without Cache)	85F0002
SCSI Internal Cable	64F4127
SCSI Adapter/A (with Cache)	85F0063
Terminator, External (for 85F0063)	33F8464
Terminator, Internal (for 85F0063)	34F0025
Terminator, Internal (for 85F0002)	57F2870
SCSI Fast Adapter (16 bit)	92F0330
SCSI External Cable (for 92F0330)	32G4089
SCSI Internal Cable (for 92F0330)	32G0084
Terminator, Inline (space permitting)	92F0412

Rewritable Optical Drives

3.5-Inch Rewritable Optical Drive	92F0167
Rewritable Optical Cartridge	38F8647
Rewritable Optical Cartridge (5 Pack)	38F8646
Drive Mounting Slide (for 92F0167)	85F0022
Tray with Bezel (for 92F0167)	85F0021
Objective Lens Cleaner (for 92F0167)	38F8681
Prism Lens Cleaner (for 92F0167)	38F8682
3.5-Inch Enhanced Rewritable Optical Drive	92F0167
Mounting Tray	92F0269
Mounting Tray/Bezel (Model 3510)	92F0268

External Keyboard/Mouse

Keyboard Cable	72X8537
Mouse	61X8923
Mouse Ball and Pop-Off Retainer	33F8461
Mouse Ball and Twist-Off Retainer	33F8462
Mouse (New Style) (33G5420)	06H4595
Mouse Retainer Ring	33G5417
Miniature Mouse	95F5723

Enhanced Keyboards (101/102 Key)

Country	FRU P/N
Arabic	1391490
Belgian	1391414
Canadian French	1392011
Cyrillic	1393866
Danish	1391407
Dutch	1391511
French	1391402
German	1391403
Greek	1393285
Hebrew	1391408
Italian	1393395
Latin American Spanish	1392015
Norwegian	1391409
Portuguese	1391410
Russian/Cyrillic	1395622
Spanish	1391405
Swedish/Finnish	1391411
Swiss	1391412
Swiss/French	1395881
Swiss/German	1395882
Turkish	1393286
U.K. English	1391406
U.S. English (E/ME/A use only)	1396790
U.S. English	1392090
Yugoslavian	1393669

Optional Enhanced Keyboards (101/102 Key)

with PS/2 Style Cable	59G7980
with AT Style Cable	59G7981
with 25mm PS/2 Trackball	59G7982
with 25mm Serial Trackball	59G9757

Keybutton Kits (101/102 Key)

Keybutton Kits (R), Belgian	1392033
Keybutton Kits (R), Canadian French	1392032
Keybutton Kits (R), Danish	1392026
Keybutton Kits (R), Dutch	1392034
Keybutton Kits (R), French	6447047
Keybutton Kits (R), German	6447048
Keybutton Kits (R), Italian	6447049
Keybutton Kits (R), Norwegian	1392028
Keybutton Kits (R), Portuguese	1392029
Keybutton Kits (R), Spanish	6447050
Keybutton Kits (R), Spanish / Latin	1392035
Keybutton Kits (R), Swedish	1392030
Keybutton Kits (R), Swiss / French / German	1392031
Keybutton Kits (R), U.K. English	6447046
Keybutton Kits, U.S. English	6447045

Japanese Keyboard Type 2 (106 Key, DBCS Support)

Japanese Keyboard	94X1110
Keyboard Cable	94X1147

Space-Saving Keyboards (84/85 Key)

Canadian French	1396046
Spanish/Latin	1396047
U.S. English	1393290
Cable Assembly, External	1393082

Tools and Miscellaneous

Audio Wrap Cable	66G5180
Ethernet BNC T-Connector	84F8207
Ethernet BNC 50-ohm Terminator
(2 required)	85F0037
Grounding Wire Set	38F4684
Keyboard Key Cap Removal Tool	6110464
PC Test Card	33G4703
Screwdriver Kit	95F3598
SCSI Terminator
(any SCSI device, space permitting)	92F0142
SCSI Terminator Kit
(R-PAC Terminator Modules (3) for 40, 60,
80, 120, and 160MB SCSI Hard Disk Drives)	92F0143
Wrap Plug Ethernet D-Shell	85F0036
Wrap Plug, Tri-Connector	72X8546
Wrap Plug (6157 Tape Attachment Adapter/A)	4178459
Wrap Plug (Token-Ring Network Adapter/A)	6165899
Plastic Envelope (For Wrap Plug)	6138013

 Safety Notice 4

The lithium battery can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.

La pile de sauvegarde contient du lithium. Elle présente des risques d'incendie, d'explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas. Ne l'exposez pas à une temperature supérieure à 100°C, ne la faites pas brûler et n'en exposez pas le contenu à l'eau. Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile inappropriée risque de prendre feu ou d'exploser.

Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa.

La bateria de repuesto es una bateria de litio y puede provocar incendios, explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como dispone la normativa local.

Power Systems Checkout

To verify the symptom of the problem, power on the computer using each of the power sources as follows:

1. Remove the battery pack, diskette drive, and hard disk drive.
2. Connect the AC Adapter and check that power is supplied.
3. Install the diskette drive or hard disk drive  one at a time, and check that power is supplied from  each power source.
4. Disconnect the AC Adapter, remove the hard disk and  diskette drive, and install the charged battery pack,  then check that power is supplied by the battery pack.

If you suspect a power problem, see the appropriate power supply check listed below.

• Checking the AC Adapter .
• Checking Operational Charging .
• Checking the Battery Pack .
• Checking the Backup Battery .

To verify the symptom of the problem, power on the computer using each of the power sources as follows.

1. Remove the battery pack and diskette drive.
2. Connect the AC Adapter and check that power is supplied.
3. Disconnect the AC Adapter and install the charged battery pack, then  check that power is supplied by the battery pack.

If you suspect a power problem, see the appropriate power supply check listed below.

Checking the AC Adapter

You are here because the computer fails only when the AC Adapter is used.

• If the power problem occurs only when a Port Replicator is used,  replace the replicator.
• If the power-on indicator does not turn on, check the power  cord of the AC Adapter for correct continuity and installation.
• If the operational charge does not work, go to 'Checking Operational Charging' .

NOTE: For Model 365XD, there are two types of adapters. The procedure for checking both types is the same.

1. Unplug the AC Adapter cable from the computer and  measure the output voltage at the plug of the AC Adapter cable.

   

Pin	Voltage (Vdc)
1	+14.5 to +17.0
2	Ground

• If the voltage is correct,  replace the system board.
• If the problem is not corrected, go to 'Undetermined Problems' .
• If the voltage is not correct, go to the next step.
• Unplug the AC Adapter cable from the ac power outlet and wait  five minutes or longer to allow the over-voltage protection circuit  to be fully discharged and initialized.
• Plug the AC Adapter cable into the ac power outlet.
• Measure the output voltage of the AC Adapter.
• If the voltage is still not correct, replace the AC Adapter.

NOTE: An audible noise from the AC Adapter does not always indicate a defective adapter.

Checking Operational Charging

To check operational charging, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator does not turn on, remove the battery pack and leave it to return to room temperature. Reinstall the battery pack. If the charge indicator still does not turn on, replace the battery pack.

Checking the Battery Pack

Battery charging will not start until the Fuel-Gauge shows that less than 95% of the total power remains, with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being overcharged or having a shortened life.

Do the following:

1. Power off the computer.- Remove the battery pack and measure the voltage between battery  terminals 2 (+) and 6 (-).

    

   Terminal	Voltage (Vdc) / Signal
   1	-
   2	+8 to +13.5
   3	-
   4	-
   5	Thermal
   6	Ground (-)

   NOTE: Signal lines, not used in these steps,  are used for communication between the system and the battery.

   • If the voltage is less than  +9.6 V dc, the battery pack has  been discharged. Recharge the battery pack.

   If the voltage is still less than +9.6 V dc after recharging,  replace the battery.

   NOTE:  If the voltage of the battery pack is 0 V, it is not defective.

   • If the voltage is more than +9.6 V dc,  measure the resistance between  battery terminals 5 and 6.  The resistance must be 4 K to 30 K ohm.

     If the resistance is not correct, replace the battery pack.

     If the resistance is correct, replace the system board.

Checking the Backup Battery

1. Power off the computer and unplug the AC Adapter from the computer.- Open the keyboard and remove the battery pack.- Lift the right-hand section of the black insulator sheet.- Locate the backup battery on the system board, shown at 1.

    ![bkup365](/static/parts/img/536de212f600.gif)
    ![warn3](/static/parts/img/f6bbaae0a677.gif)   
      Do not use a metal tool when removing the backup battery.
     Use only a plastic tool.
   
    - Using a plastic tool,
       remove the backup battery from the system board.- Measure the voltage of the backup battery.
         Refer to the following table for voltages:
   
        | Wire | Voltage (Vdc) |
        | --- | --- |
        | + | +2.5 to +3.7 |
        | - | Ground |
   

• If the voltage is correct, replace the system board.
• If the voltage is not correct, the backup battery has been  discharged. Replace the backup battery.
• If the backup battery discharges quickly after replacement,  replace the system board.

You are here because the computer fails only when the AC Adapter is used.

• If the power problem occurs only when the Port Replicator is used,  replace the replicator.
• If the power-on indicator does not turn on, check the power  cord of the AC Adapter for correct continuity and installation.
• If the operational charge does not work, go to 'Checking Operational Charging' .

1. Unplug the AC Adapter cable from the computer and  measure the output voltage at the plug of the AC Adapter cable.

 

Pin	Voltage (Vdc)
1	+14.5 to +17.0
2	Ground

• If the voltage is correct, replace the subcard.
• If the problem is not corrected, replace the system board.
• If the problem is not corrected, go to 'Undetermined Problems' .
• If the voltage is not correct, go to the next step.
• Unplug the AC Adapter cable from the ac power outlet and wait  five minutes or longer to allow the over-voltage protection circuit  to be fully discharged and initialized.
• Plug the AC Adapter cable into the ac power outlet.
• Measure the output voltage of the AC Adapter.
• If the voltage is still not correct, replace the AC Adapter.

NOTE: An audible noise from the AC Adapter does not always indicate a defective adapter.

Checking the AC Adapter (2635-380/385)

1. Power off the computer- Remove the battery pack and measure the voltage between  battery terminals 1 (+) and 4 (-).

    

   Terminal	Voltage (Vdc) / Signal
   1	+0 to +13.5
   2	N/C
   3	Thermal
   4	Ground (-)
   5	Select
   6	A-Ground

   NOTE: Signal lines not used in these steps are used for  communication between the system and the battery.

   • If the voltage is less than +11.0 Vdc, the battery pack has been discharged.  Recharge the battery pack.

   If the voltage is still less than +11.0 Vdc after recharging, replace the battery.

   NOTE: If the voltage of the battery pack is 0 V, it is not defective.

   • If the voltage is more than +11.0 Vdc, measure the resistance between battery terminals  3 and 4. The resistance must be 4 to 30 K ohm.

     If the resistance is not correct, replace the battery pack.

     If the resistance is correct, replace the subcard.

1. Power off the computer and unplug the AC Adapter from the computer.- Turn the computer upside down.- Remove the DIMM cover and backup battery (see DIMM Card / Backup Battery)- Measure the voltage of the backup battery.

    **NOTE:** Be careful not to measure the wrong side of the
     backup battery.
   

 

Wire	Voltage (Vdc)
Red	+2.5 to +3.7
Black	Ground

• If the voltage is correct, replace the system board.
• If the voltage is not correct, the backup battery has been  discharged. Replace the backup battery.
• If the backup battery discharges quickly after replacement,  replace the system board.

1020 Battery Pack

  Be careful that the computer does not fall backward when the battery pack is removed.

  See Lithium Battery Safety

1. Turn the computer upside down.

2 3 4 5 6 DIMM

2 3 7 Backup battery

 

When replacing

Make sure the plus side is on top when replacing the backup battery.

Step	Location (Quantity)	Length
2	DIMM cover (1)	-

NOTE: Only loosen the screw in step 2

Use the ThinkPad Features program or PS2.EXE. to power-on the TV Tuner, then power-on the internal device in the diskette drive compartment.

  If power for the internal device is turned off when the TV Tuner is set up, nothing appears on the LCD display. Turn on power for the TV Tuner again.

• If you are using DOS, do one of the following:

• Power-on the computer and type PS2 from the  command prompt to start the ThinkPad Features program. Select Set Power Features from the ThinkPad Features  menu,then put a check mark at Internal Serial Port (or Diskette Drive Compartment )  under the Power for devices .  If you need help, press F1 to display the help menu.
• Type ps2 modem on from the command prompt,  press the Enter key to set the power ON.

• If you are using OS/2 or  Microsoft Windows, do the following:

  1. Power-on the computer and start the ThinkPad Features program.
  2. Select the Power icon, then move the pointer to Internal Serial Port (or Diskette Drive Compartment )  under the Power for devices and click the button to check mark it.
  3. Press the OK button.

Keyboard/Auxiliary Input Device Checkout

Remove the external keyboard if the internal keyboard is to be tested.

If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the keyboard card.

If the keyboard cable connections are correct, you can run on TP-2635 the - Keyboard Test by doing the following:

1. Go to the diagnostic menu screen by selecting Test in  the Easy-Setup screen.- Press Ctrl+A The ThinkPad FRU Connections screen appears.  (If the Ctrl+A does not work, triple-click on the icon on the  right bottom corner on the basic diagnostic screen.)- Make sure that the keyboard connection is Connected, then  press Esc to escape the screen.- A layout of the keyboard appears on the screen. Check that when  each key is pressed, the key's position on the keyboard layout on the screen changes to  a black square.

    **NOTE:** When a **Fn** key is pressed, a black square briefly appears.
    - Press **Ctrl+Pause** to end the test.
   

If the test detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU

• Reseat the keyboard flexible cable.
• Replace the keyboard assembly.
• Replace the subcard
• Replace the system board.

Diskette Drive Test

Do the following to isolate the problem to a controller, drive, or diskette. A scratch, write enabled, non-defective 2HD diskette is required.

FDD-1 represents the built-in diskette drive for 365X. FDD-2 represents a diskette drive in the Port Replicator or a diskette drive attached through the external diskette drive connector.

  Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or can cause the drive to fail.

Do the following to select the test device:

1. Select the advanced diagnostics mode and  select Tool , then  select the FDD-1 or FDD-2 icon and  press the spacebar.  A OK mark appears next to the selected icon.  Insert a blank diskette when instructed.
2. Run the diskette drive test.
3. If the controller test detects an error, FRU code 10 appears.  Replace the system board.
4. If the controller test runs without errors,  the drive read/write tests start automatically.
5. If the drive test detects an error, FRU code 50 for FDD-1  or 51 for FDD-2 appears.  If the diskette itself is known to be good, replace the drive.

1070 Keyboard Unit

When replacing the keyboard unit, connect the keyboard connector as shown in the figure, then replace the keyboard.

 

  Some TP 365X / 365XD will have problems with the Keyboard Position Sensor Switch failing to properly actuate when the keyboard is lowered into normal usage position. (Cause: enter HIBERNATION mode)

Spacers should be affixed to the underside of the keyboard to ensure that the switch is depressed when keyboard is lowered. More than one spacer (incl. in FRU P/N 39H7105) can be affixed to overcome this problem.

Use the following procedure to isolate the diskette problem to a controller, drive or diskette. A scratch, write-enabled 2HD diskette is required.

1. Select the icon FDD on the TEST MENU . By  doing this, the controller test and the drive  read/write test run.  If the controller test detects an error, FRU code 10 appears.  In this case, replace the system board.
2. If the controller test run without errors,  follow the instructions on the screen and insert a scratch  diskette.
3. If the drive test detects an error, FRU code 50 appears.  If the diskette media are known to be good, replace the drive or the  drive cable.

If the display problem occurs only when using an external display, use the following instructions to correct the problem.

Note: Before you replace a display, check the following list to see if it is connected correctly.

• 8506 and 8508 displays must be connected to an Image Adapter/A or an  Image-I Adapter/A.
• 63XX and 85XX systems support either 63XX or 85XX displays.
• 85XX systems with an XGA-2 adapter support 95XX displays.
• 95XX systems support either 63XX, 85XX, or 95XX displays.
• ThinkPad models support either 85XX or 95XX displays.

If the screen is rolling, replace the display assembly. If that does not correct the problem, replace FRUs in the following order until the problem goes away:

1. Video card
2. Display adapter (any type)
3. System board
4. Bus adapter (if used)

If the screen is not rolling, run the display self-test as follows:

1. Power-off the computer and display.
2. Disconnect the display signal cable.
3. Power-on the display.
4. Set the contrast to its maximum position.
5. Set the brightness control to the center detent position.

Check for the following conditions:

• You should be able to vary the screen intensity by adjusting the contrast  and brightness controls.
• The screen should be white or light gray,  with a black margin (test margin) on the screen. NOTE: The location of the test margin varies with the type of display. The  test margin might be on the top, bottom, or one or both sides.

If you do not see a test margin on the screen, replace the display. If there is a test margin on the screen, replace the system board.

On ThinkPad Models 700, 700C, 720C, 720C, do the following:

1. Video card
2. System board

The following auxiliary input devices may be available for IBM ThinkPad models.

• Numeric keypad
• Mouse (PS/2 compatible)
• External keyboard (with Keyboard/Miniature Mouse cable)

• If you suspect a problem with any of the auxiliary input devices  (listed above), replace the device.

If the problem is not corrected, replace the following FRUs one  at a time to correct the problem.

• Keyboard control card
• System board

• If the computer receives an incorrect keyboard response,  remove other external devices, check the keyboard connections, and recheck  the keyboard responses. If the problem remains, replace the following FRUs  one at a time to correct the problem.

  • Keyboard
  • Keyboard control card
  • System board

  • If a 00030100 error message appears,  power-off the computer and the external devices.  Then power-on the computer before you power-on the external devices.

Note: PCMCIA cards can be inserted and removed while
       the system is powered on
  - Power-on the system.
  - Insert the IBM Data/FAX Modem diskette into the default
    diskette drive.
  - If you are servicing a High Speed Internal Data/Fax Modem (Models
    FC3632 and FC3650), at the DOS prompt (for example, A:), type
IBMDIAG, then press Enter.
  - If you are servicing a PCMCIA Data/FAX Modem (Models FC3634 and
    FC3635), at the DOS prompt (for example, A:), type ESTDIAG,
    then press Enter.
  - Follow the instructions on the screen.  (If you need help, press
F1.)
 DID THE DIAGNOSTIC TESTS DETECT AN ERROR?
              +---+
  Yes      No-+002|
   |          +---+
   |           The diagnostic tests have completed successfully.
 +-+-+         If you suspect a problen, go to step 004
 |003|
 +---+
  Go to the Symptom-to-FRU Index for the computer you are servicing.
 ------------------------------------------------------------------------
 +---+
 |004|
 +---+
  - Check the PSTN cable and the DAA cable, if installed, for continuity.
 IS THE CABLE(S) GOOD?
              +---+
  Yes      No-+005|
   |          +---+
 +-+-+         Replace the defective cable(s).
 |006|
 +---+
  - Have the customer transmit a call.
 WAS THE CALL TRANSMITTED SUCCESSFULLY?
              +---+
  Yes      No-+007|
   |          +---+
 +-+-+         Go to step 011
 |008|
 +---+
  - Have the customer receive an incoming call on the modem.
 WAS THE INCOMING CALL RECEIVED?
              +---+
  Yes      No-+009|
   |          +---+
 +-+-+         Go to step 014
 |010|
 +---+
 The diagnostic tests have completed successfully.  If you still suspect
 a problem that is not software related, replace the External DAA, then
 replace the modem.
 ------------------------------------------------------------------------
 +---+
 |011|
 +---+
  - Have the customer transmit a call at a lower speed.
 WAS THE CALL TRANSMITTED SUCCESSFULLY?
              +---+
  Yes      No-+012|
   |          +---+
   |           If installed, replace the external DAA.
   |           If you do not have an external DAA installed,
   |           or replacing the external DAA does not correct
 +-+-+         the problem, replace the modem.
 |013|
 +---+
 Have the telephone line checked.
 ------------------------------------------------------------------------
 +---+
 |014|
 +---+
  - Have the customer receive an incoming call on the modem
    at a lower speed.
 WAS THE INCOMING CALL RECEIVED?
              +---+
  Yes      No-+015|
   |          +---+
   |           If installed, replace the external DAA.
   |           If you do not have an external DAA installed,
   |           or replacing the external DAA does not correct
 +-+-+         the problem, replace the modem.
 |016|
 +---+
 Have the telephone line checked.

+---+
 |001|
 +---+
  - Power-off the computer.
  - Ensure that the modem is installed correctly.
  - If the modem never worked in customer mode, ensure that all
    drivers are loaded correctly onto the computer.
  - Ensure that the communication program is supported on the computer.
  - Ensure that the public switch telephone network (PSTN) cable and the
    data access arrangement (DAA) cable, if installed,
    are connected correctly.
 If you need to correct one of the above conditions, do so now,
 then continue.
NOTE: PCMCIA cards can be inserted and removed while
       the system is powered on
  - Power-on the system.
  - Insert the IBM Data/FAX Modem diskette into the default
    diskette drive.
  - If you are servicing a High Speed Internal Data/Fax Modem (Models
    FC3632 and FC3650), at the DOS prompt (for example, A:), type
IBMDIAG, then press Enter.
  - If you are servicing a PCMCIA Data/FAX Modem (Models FC3634 and
    FC3635), at the DOS prompt (for example, A:), type ESTDIAG,
    then press Enter.
  - Follow the instructions on the screen.  (If you need help, press
F1.)
 DID THE DIAGNOSTIC TESTS DETECT AN ERROR?
              +---+
  Yes      No-+002|
   |          +---+
   |           The diagnostic tests have completed successfully.
 +-+-+         If you suspect a problen, go to step 004
 |003|
 +---+
  Go to the Symptom-to-FRU Index for the computer you are servicing.
 ------------------------------------------------------------------------
 +---+
 |004|
 +---+
  - Check the PSTN cable and the DAA cable, if installed, for continuity.
 IS THE CABLE(S) GOOD?
              +---+
  Yes      No-+005|
   |          +---+
 +-+-+         Replace the defective cable(s).
 |006|
 +---+
  - Have the customer transmit a call.
 WAS THE CALL TRANSMITTED SUCCESSFULLY?
              +---+
  Yes      No-+007|
   |          +---+
 +-+-+         Go to step 011
 |008|
 +---+
  - Have the customer receive an incoming call on the modem.
 WAS THE INCOMING CALL RECEIVED?
              +---+
  Yes      No-+009|
   |          +---+
 +-+-+         Go to step 014
 |010|
 +---+
 The diagnostic tests have completed successfully.  If you still suspect
 a problem that is not software related, replace the External DAA, then
 replace the modem.
 ------------------------------------------------------------------------
 +---+
 |011|
 +---+
  - Have the customer transmit a call at a lower speed.
 WAS THE CALL TRANSMITTED SUCCESSFULLY?
              +---+
  Yes      No-+012|
   |          +---+
   |           If installed, replace the external DAA.
   |           If you do not have an external DAA installed,
   |           or replacing the external DAA does not correct
 +-+-+         the problem, replace the modem.
 |013|
 +---+
 Have the telephone line checked.
 ------------------------------------------------------------------------
 +---+
 |014|
 +---+
  - Have the customer receive an incoming call on the modem
    at a lower speed.
 WAS THE INCOMING CALL RECEIVED?
              +---+
  Yes      No-+015|
   |          +---+
   |           If installed, replace the external DAA.
   |           If you do not have an external DAA installed,
   |           or replacing the external DAA does not correct
 +-+-+         the problem, replace the modem.
 |016|
 +---+
 Have the telephone line checked.

1. Make sure the printer is correctly connected and is powered-on.
2. Run the printer self-test.

If the printer self-test does not run correctly, the problem is in the printer. Refer to the printer service manual.

If the printer self-test runs correctly, do the following.

1. Verify the port settings in configuration.
2. Install a wrap plug on the port (indicated in configuration)  and run the advanced diagnostic tests.
3. If the advanced diagnostic tests (with the wrap plug installed)  do not detect a failure, replace the printer cable. If the problem is not corrected, replace the system board.

Use the following procedure to isolate a port replicator problem. A port replicator attaches to the system expansion connector at the rear of the computer.

1. Power-off the computer.- Remove the failing devices from the replicator.- Unplug the AC adapter from the replicator, if attached.- Remove the port replicator from the computer.- Reconnect the failing device directly to the computer.  (If another device occupies the connector, remove it first.)- Go to General Checkout and follow that procedure.- If the advanced diagnostic device test does not find an error,  suspect a problem with the port replicator  or the system expansion bus.- Power-off the computer and reconnect the port replicator.- Power-on the computer and run the following advanced diagnostic tests:

              - Serial port test with the wrap plug installed on the replicator.- Parallel port test with the wrap plug installed on the replicator.- PCMCIA-2 test with the PC test card installed.- FDD-2 (FDD-1 if no drive is installed in the computer)
                       drive test on the failing device.
   
              - If diagnostic errors appear, replace the replicator or diskette
                 drive attachment unit.
   
                 If the problem remains after the replacement, replace the
                 system board.
   
                - If power problems appear only when using the replicator, replace the
                   replicator.
   

If power shut downs occur intermittently when using PCMCIA-2 devices via a port replicator, suspect an over-current problem. Some PCMCIA devices use more power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shut down. Isolate this problem by removing one of the devices, and use the computer under the same condition, and see whether a power shut down occurs. Do this procedure for all devices then determine the cause.

Customer purchase of the larger AC adapter (50W, optional) is recommended, if it is not yet in use.

• If the TrackPoint II  does not work, check the configuration.  If the configuration of the TrackPoint II is set to Disabled or Off, change it to Enable or On.

If the problem remains, continue.

NOTE: TrackPoint II automatically compensates to adjust  the pointer sensor. This causes the pointer to move slightly on  the screen and then stop. Pointer  movement might occur when  a slight, steady pressure is applied to the TrackPoint II pointer when  the computer is powered-on or running, or  when exceeded temperature range requires re-adjustment.

• If the cursor floats or moves erratically, power-off and disconnect the  mouse. Power-on the computer. If the  problem goes away, replace the mouse. If the problem remains, replace the  keyboard.- For click button or pointing stick problems:

  1. Go to the Easy-Setup screen.
  2. Select an item with the pointing stick.
  3. Press either left or right click button.
  4. Verify that both buttons work correctly.

  If the pointing stick or the click button does not work,  do the following.

  1. Reseat the keyboard cables.
  2. Replace the keyboard.
  3. Replace the interposer card (355x, 360x, 750x, 755x).
  4. Replace keyboard control card (720).
  5. Replace the system board.

The TV Tuner Pack (hereafter called TV Tuner) is an option for watching TV programs or videos on the IBM TFT color notebook computer. The computer changes to TV reception when the removable diskette drive is replaced with the TV Tuner.

The TV screen and normal computer display are easily switched by using the Hot key on the front panel of the TV Tuner.

Identifying Names and Functions

The following figure and table show the names and functions of each part of the TV Tuner.

Icons          Functions
 Front Panel      Used to change the TV channels, switch TV mode
                  to computer mode, and operate most functions of
                  the TV Tuner.
 --------------------------------------------------------------
 Headphone Jack  

   Connects the headphones.
 --------------------------------------------------------------
 Power Indicator  Shows the TV Tuner is powered on.
 --------------------------------------------------------------
 Power Switch  

   Powered on and off the TV Tuner.
 --------------------------------------------------------------
 Hot Key  

   Switches between the TV screen and computer screen.
 --------------------------------------------------------------
 Up Switch  

   Increases the value such as the channel number.
 --------------------------------------------------------------
 Down Switch  

   Decreases the value such as the channel number.
 --------------------------------------------------------------
 Function Key  

   Enters the mode to change the value of each function,
                  such as TV channel or color contrast.
 (See 'Using the Function Key')
 --------------------------------------------------------------
 TV/EXT Switch  

   Switches the TV mode or external video mode.
 --------------------------------------------------------------
 Volume Knob  

   Controls the speaker volume.
 --------------------------------------------------------------
 Audio-In Jack  

   Connects the audio-in connector of the AV cable.
 --------------------------------------------------------------
 Video-In Jack  

   Connects video-in connector of the AV cable.
 --------------------------------------------------------------
 RF Connector  

   Connects the active antenna unit or antenna cable.
 --------------------------------------------------------------

Using the Front Panel

The following table shows how to operate all functions of the TV Tuner with the controls on the front panel.

Key            Function
 Power

   Turns on the TV Tuner.
        This key is used only when the computer is turned on.
 Hot Key

   Switches computer display and TV screen.
Up

   Increases the value of parameters, Channel Number,
        Color, Tint, Brightness, Contrast, Auto Tuning Sensitivity,
        On-screen Message Selection.
 Down

   Decreases the value of parameters, Channel Number
        Color, Tint, Brightness, Contrast, Auto Tuning Sensitivity,
        On-screen Message Selection.
 Function

   Selects a function mode to adjust each function parameter.
        (See Using the Function Key)
 TV/Ext

   Switches the displayed video source between
        the receiving TV broadcast program and external devices such as
        VCR, video camera recorder, laser disk, and so on.

System Board and CPU Card Checkout

The processing functions are performed by both the system board and the CPU card. Processor problems can be caused by either FRU. However, the CPU card generally has a lower probability of failure. When a numeric code calls the system board or the CPU card as a FRU, or the CPU card is called by a diagnostic test by showing FRU code 11, use the following procedure to isolate the problem:

1. Run the system board test to verify the symptom. This test verifies  both the system board and the CPU card.  If no error is detected, return to 'Checkout Guide' .
2. If FRU code 10 appears, replace the system board but do not replace  the CPU card. Transfer the CPU card from the old system  board to the new system board.
3. If FRU code 11 appears, reseat the CPU card.
4. Rerun the test to verify the fix.
5. If FRU code 11 remains, replace the CPU card.

If above procedure does not correct the problem, go to 'Undetermined Problems'.

Undetermined Problems

You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate non-defective FRUs).

Verify that all attached devices are supported by the computer.

Verify that the power supply being used at the time of the failure is operating correctly.

• For 2625 365X, XD see 'Power Systems Checkout' .
• For 2635-380/385 see 'Power Systems Checkout' .

1. Power off the computer.- Check the cables, wires, and connectors for  short circuits and open circuits. Visually check them for damage.  If any problems are found, replace the FRU.- Remove or disconnect all of the following devices.

   1. Non-IBM devices
   2. Devices attached to the expansion bus connector
   3. Printer, mouse, and other external devices
   4. Battery pack
   5. Hard disk drive
   6. Internal diskette drive or CD-ROM drive
   7. DIMM
   8. PC Cards
   • Power on the computer.
   • Determine if the problem has changed.
   • If the problem does not occur again, reconnect the removed devices  one at a time until you find the failing FRU.
   • If the problem still remains, remove the backup battery and wait for 3 minutes, then  replace the backup battery and set current date and time.
   • Determine if the problem has changed.
   • If the problem remains, replace the following FRUs one at a time.  Do not replace a non-defective FRU.

If ThinkPad 2625 365X, XD then replace

• Keyboard card
• LCD assembly
• System board
• CPU card

If ThinkPad 2635 380/385 then replace

• Subcard
• System Board

Checking the Installed Devices List

If a device is installed but the icon appears in a gray shade rather than a dark shade on the basic diagnostics screen, the device is defective. Reseat the device connectors. If the symptom remains, replace the device or the system board. If needed, adjust the contrast control to clearly distinguish the shade of the icon.

If a device that is not installed appears in a dark shade (for example, FDD-2 appears in a dark shade when NO second FDD is installed), do the following:

1. Replace the first device in the configuration, such as the FDD-1.
2. If the problem remains, replace the system board.

The PCMCIA, Parallel, and Serial icons are always displayed in a dark shade because the icons represent subsystems of the system board and not the actual attachment of the devices.

The FDD-1 icon represents the first drive in the system configuration. Similarly, the FDD-2 icon represents the second drive, attached to the external diskette drive connector or through a Port Replicator.

Other Symptoms

Symptom / Error	FRU / Action in Sequence
Errors occur only when	See Port Replicator Checkout in the
Port Replicator is used	Common Devices Checkout section
PCMCIA slot pin is damaged.	PCMCIA Slots Assembly

NOTE: If you cannot find a symptom or error in this list and the problem remains, see 'Undetermined Problems'.

Memory Checkout

DIMM cards are available for increasing memory capacity.

DIMM	Displayed Value 2625 365X, XD	Displayed Value 2635 380-385
No DIMM installed	7808KB	16000KB
8MB	16000KB	24192KB
16MB	24192KB	32384KB
32MB	40576KB	48768KB

Memory errors might stop system operations, show error messages on the screen, or hang the system.

Use the following procedure to isolate memory problems.

NOTE: Make sure that the DIMM is fully installed into the connector. Both latches must be latched completely. A loose connection can cause error code 195.

1. Power off the computer and remove the DIMM from its  slot (if installed).
2. Press and hold the F1 key, then power on the computer.  Hold the F1 key down until the Easy-Setup screen appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to  run the memory test on base memory. If an error appears, replace the  system board.
5. Power off the computer and reinstall the DIMM, then power on the  computer. Verify the memory size, then test the memory. If an error  appears, replace the DIMM.

If memory problems occur intermittently, make sure the DIMM socket latches are latched completely. If the DIMM latches are securely latched, use the loop option to repeat the test. When the test detects an error, an error log is printed on the printer connected to the parallel port.

• For 2625 365X, XD see 'Error Log'
• For 2635 380-385 see 'Error Log'

for more information.

Error Log

Diagnostic errors are printed on the printer that is attached to the parallel port when the error is detected. The error is also logged in the system memory.

Do the following to display the errors:

1. End the test, if it is running.
2. Press Ctrl+A to select the advanced diagnostic mode.
3. Press Ctrl+E .
4. The error log appears.
5. To exit the screen, select the cancel icon or press Esc.

The error log is not saved when the system is powered-off.

Diagnostic errors are printed on the printer that is attached to the parallel port when the error is detected. The error is also logged in the system memory.

Do the following to display the errors:

1. End the test, if it is running.
2. Press Ctrl+A to select the advanced diagnostic mode.
3. Press Esc to exit the ThinkPad FRU Connections screen. The keyboard test screen appears.
4. Press Ctrl+Pause to exit the keyboard test screen.
5. Press Ctrl+E .
6. The error log appears.
7. To exit the screen, select the cancel icon or press Esc.

The error log is not saved when the system is powered-off.

Each time you press the Function key  
one of the following messages (called On-Screen Message) appears at the top left corner of the LCD.

The changed values are automatically saved when you return to the TV Channel On-Screen message. The values are not saved when you power-off the TV Tuner without returning to this message.

Message on       Parameter
 LCD
                   TV Channel
  (xx)             By using <- and +>  you can select the channels
                   from 2 to 69.
                   Color Adjustment
   COL             By pressing and holding <- or +>
                   you can change the color.
                   TINT Adjustment
   TNT             By pressing and holding <- or +>
                   you can change the tint.
                   Bright Adjustment
   BRT             By pressing and holding <- or +>
                   you can change the brightness.
                   Contrast Adjustment
   CNT             By pressing and holding <- or +>
                   you can change the contrast.
   ---             (No function)
                    Reserved.
                   Auto Tune Sensitivity Selection
    LO             LO: Means the sensitivity
                   of the TV is low.  In this mode, the TV Tuner receives
                   strong TV signals only.  To set LO,
                   press <-
    HI             HI: Means the sensitivity
                   of the TV is high (factory default).
                   In this mode, the TV Tuner receives weak and strong TV signals.
                   To set HI, press +>
    D3S            Time On-Screen Message appears
                   D3S: On-screen Message appears for 3 seconds.
                   To set D3S, press <-
    DON            DON: On-screen Message always appears.
                   To set DON press +>

The following table shows what to do to solve problems when the TV Tuner does not work correctly.

Problem        Probable Cause
 The TV Tuner        ° Computer is not powered on.
 does not operate.   ° Computer is in suspend mode.
  (No picture        ° Volume control of the TV Tuner or computer
   or sound)           is not adjusted correctly.
                     ° The power for the TV Tuner is not supplied.
                       (See Power-on the TV Tuner)
                     ° The wall outlet from the outdoor antenna is not active.
                     ° The video or antenna cable is not connected correctly.
                     ° Antenna elements of the active antenna unit are not adjusted.
                     ° The batteries in the active antenna unit are not inserted
                       correctly.
                     ° The batteries in the active antenna unit are depleted.
                     ° The TV Tuner is not set up correctly.
                     ° You cannot watch TV or videos on the external display.
                     ° LO is set for the auto tune sensitivity
                       selection.
 No color.           ° The program is not in color.

Snow and noise      ° Switch the TV/EXT (  ) button.
 only.
 Pictures are out    For TV:
 of shape, or have   ° The channel is not tuned correctly.
 double images.      ° Adjust the antenna.
                     For VCR:
                     ° Change the tracking adjustment.
 Dotted lines        ° Usually caused by interference from
 or stripes.           neon signs, hair dryers, and so on.
                       Move the computer to avoid the interference.
 Picture control     ° Do not power-off the TV Tuner
 are not saved.        when adjusting functions such as picture control,
                       color, tint, brightness, or contrast.
 Channel number is   ° Select your favorite mode for the on-screen message.
 always displayed or
 is not displayed.

1060 Top Cover

 

Step	Screw Location (Quantity)	Length
2	Top Cover (2)	M2 x 5 mm

NOTE: Make sure you use the correct screws when replacing.

  When replacing the top cover, be careful not to damage the resume switch. Ensure that the resume switch extends through the hole, as shown in the figure.