ThinkPad 770

Introduction: The ThinkPad 770 is a massive, high-performance multimedia powerhouse and one of the first laptops to support a DVD-ROM drive.

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

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.

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' .

NOTE: For Model 760CD, 760ED, 760LD, and 760ELD, 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.

 
(20 - 10 V)

Pin	Voltage (Vdc)
1	+18.0 to +21.0
2	Ground

(16 - 10 V)

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

• If the voltage is correct, make sure the  connection between DC/DC card and system board is not loose.
• Replace the DC/DC card.
• If the problem is not corrected, replace the system board.
• If the problem is still 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.

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.

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 1 (+) and 4 (-).

    

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

   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 DC/DC card.

1. Unplug the Car-Battery Adapter cable from the computer.- Plug the Car-Battery Adapter into the cigarette lighter socket.

   NOTE: If the adapter is already plugged in, reseat it.

   • Measure the output voltage of the Car-Battery Adapter cable.

    

   Pin	Voltage (Vdc)
   1	+19.0 to +21.0
   2	Ground

   • If the voltage is correct, the Car-Battery Adapter is working correctly.  Check that the computer runs with the AC Adapter.

     If it runs correctly with the AC Adapter, check the system board.

     If the problem still remains,  replace the following FRUs one at a time.

     1. DC/DC card
     2. System board

     • If the problem is not resolved when the system board is replaced,  go to 'Undetermined Problems'.- If the voltage is outside the normal voltage range, do one of the  following:

       • Try these test procedures in a different car,  if one is available.
       • Replace the Car-Battery Adapter if the computer works  correctly with the AC Adapter.

NOTE: If the output voltage from the cigarette lighter socket of the car is less than 10.5 Vdc, a continuous noise may be heard. The condition of the car battery should be checked by appropriate service personal.

1. Power-off the computer and unplug the AC Adapter  from the computer.
2. Open the keyboard, and remove the  diskette drive/CD-ROM drive, the battery pack, and the hard disk drive.
3. Remove the top cover and keyboard unit.
4. Open the keyboard unit, then remove the keyboard card.
5. Remove the backup battery from the keyboard card.  (Refer to 'Backup Battery, Speaker, Standby Battery' to remove the battery.)
6. Measure the voltage of the backup battery.  See the following figure:

 

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.

1. Power-off the computer and unplug the AC Adapter  from the computer.- Open the keyboard, remove the  diskette drive/CD-ROM drive, the battery pack, and hard disk drive.- Remove the top cover and keyboard unit.- Open the keyboard unit and remove the keyboard card.- Remove the standby battery from the keyboard card.  (Refer to 'Backup Battery, Speaker, Standby Battery' to remove the battery.)

   Be careful not to cause a short circuit when measuring the voltage.

   • Measure the voltage of the standby battery.
   • If the voltage between red and black is less than +3.0 Vdc, replace the standby battery.

If power shutdowns occur intermittently when using PCMCIA-2 devices via a port replicator, suspect a current overload. Some PCMCIA devices use much power, if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shutdown. Isolate this problem by removing one of the devices, and use the computer under the same condition to see whether a power shutdown occurs.

Do this procedure for all devices, then determine the cause.

• Diskette Drive/CD-ROM Drive (Model Unique)

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

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

1. 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?
     • If Yes: Go to step 003
     • If No: Go to step 002 (The diagnostic tests have completed successfully. If you suspect a problem, go to step 004)
2. 003
   • Go to the Symptom-to-FRU Index for the computer you are servicing.
3. 004
   • Check the PSTN cable and the DAA cable, if installed, for continuity.
   • IS THE CABLE(S) GOOD?
     • If Yes: Go to step 006
     • If No: Go to step 005 (Replace the defective cable(s).)
4. 006
   • Have the customer transmit a call.
   • WAS THE CALL TRANSMITTED SUCCESSFULLY?
     • If Yes: Go to step 008
     • If No: Go to step 007 (Go to step 011)
5. 008
   • Have the customer receive an incoming call on the modem.
   • WAS THE INCOMING CALL RECEIVED?
     • If Yes: Go to step 010
     • If No: Go to step 009 (Go to step 014)
6. 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.
7. 011
   • Have the customer transmit a call at a lower speed.
   • WAS THE CALL TRANSMITTED SUCCESSFULLY?
     • If Yes: Go to step 013 (Have the telephone line checked.)
     • If No: Go to step 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.)
8. 014
   • Have the customer receive an incoming call on the modem at a lower speed.
   • WAS THE INCOMING CALL RECEIVED?
     • If Yes: Go to step 016 (Have the telephone line checked.)
     • If No: Go to step 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.)

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.

Model Unique

NOTE: When replacing the keyboard, affix the model number label.

 

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

If the security latch A is at the left position, push and slide it to the right position (unlock).

  Remove the CD-ROM drive exactly as shown in the figure.

Do not apply any extra force to the CD-ROM drive when removing it.

If the security latch A is at the left position, push and slide it to the right position (unlock).

Symptom / Error	FRU / Action in Sequence
Errors occur only when Port	1. See 'Port Replicator Checkout' in the
Replicator is used.	Common Devices Checkout section.
PCMCIA slot pin is damaged.	1. PCMCIA slots assembly

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

(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. Diskette drive/CD-ROM drive  or the device attached in the UltraBay.
   7. DIMM card
   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 remains, replace the following FRUs one at a time.  Do not replace a nondefective FRU.
     • DC/DC card
     • Video card
     • Keyboard card
     • LCD assembly
     • System board
     • DSP card or audio (ESS) card
     • CPU card

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 LCD	Parameter
(xx)	TV Channel: By using <- and +> you can select the channels from 2 to 69.
COL	Color Adjustment: By pressing and holding <- or +> you can change the color.
TNT	TINT Adjustment: By pressing and holding <- or +> you can change the tint.
BRT	Bright Adjustment: By pressing and holding <- or +> you can change the brightness.
CNT	Contrast Adjustment: By pressing and holding <- or +> you can change the contrast.
---	(No function) Reserved.
LO	Auto Tune Sensitivity Selection: 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	Auto Tune Sensitivity Selection: 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	Time On-Screen Message appears: 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.

• Diskette Drive/CD-ROM Drive (Model Unique)
• Battery Pack

  Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can cause damage and permanent loss of data on the hard disk. Before removing the hard disk drive, have the user make a backup copy of all the information on the hard disk. Never remove the hard disk drive while the system is operating or is in suspend mode.

Remove the hard disk drive exactly as shown in the figure. Do not apply any extra force to the hard disk drive when removing it.

 

NOTE: After replacing the hard disk drive, latch the removal strap into the correct position.

• Diskette Drive/CD-ROM Drive (Model Unique)
• Battery Pack (760C/760L/760E/760EL)
• Hard Disk Drive

When replacing the top cover, be careful not damage the resume switch shown in the figure.