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Service Hints & Tips

Document ID: LWIK-3PGKLU

TP 750C/CE,755CE/CD/CV/CDV - TV Tuner

Applicable to: World-Wide

TV Tuner:
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

1 Front Panel

Used to change the TV channels, switch TV mode to computer mode, and operate most functions of the TV Tuner.

2 Headphone Jack

Connects the headphones.

3 Power Indicator

Shows the TV Tuner is powered on.

4 Switch

Power Powered on and off the TV Tuner.

5 Hot Key

Switches between the TV screen and computer screen.

6 Up Switch

Increases the value such as the channel number.

7 Down Switch

Decreases the value such as the channel number.

8 Function Key

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

9 TV/EXT Switch

Switches the TV mode or external video mode.

10 Volume Knob

Controls the speaker volume.

11 Audio-In Jack

Connects the audio-in connector of the AV cable.

12 Video-In Jack

Connects video-in connector of the AV cable.

13 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.


Using the Function Key:
Each time you press the Function key (FN ), 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.

Power-on the TV Tuner:
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 (or PS2 DDC 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.

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


Problem

Probable Cause

The TV Tuner does not operate.
(No picture or sound)

Computer is not powered on.

- Computer is in suspend mode.
- Volume control of the TV Tuner or computer 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 only.

Switch the TV/EXT button.

Pictures are out of shape, or have double images.

For TV:
The channel is not tuned correctly.
Adjust the antenna.

For VCR:
Change the tracking adjustment.

Dotted lines or stripes.

Usually caused by interference from neon signs, hair dryers, and so on. Move the computer to avoid the interference.

Picture control are not saved.

Do not power-off the TV Tuner when adjusting functions such as picture control, color, tint, brightness, or contrast.

Channel number is always displayed or is not displayed.

Select your favorite mode for the on-screen message.



Search Keywords

Hint Category

Display/Monitor

Date Created

05-12-97

Last Updated

01-04-98

Revision Date

13-03-99

Brand

IBM ThinkPad

Product Family

ThinkPad 750, ThinkPad 755C/CS

Machine Type

9545

Model

Various

TypeModel

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