- Put a new memory IC.
- Turn on the TV set.
- Press and hold the TV/AV Selector on the TV set for more than 2 seconds. The following picture appears on the screen.
- Press the PROGRAMME UP on the TV set while the above On-Screen Display is still on the screen. The following picture appears on the screen.
- This completes the initialization of memory IC.
Plug & Play : No executed
Inhibit Data : Cancelled
Ch Skip Data : Cancelled
Sound Volume Data : 10/63 steps.
Volume Lock : OFF
Tuning Lock : OFF
Music Mode : OFF
AV Start : OFF
Colour System : AUTO
Required Service Adjustments
Readjust the following service adjustments.
Adjustments Service Mode No. & Item
- RF AGC Item 01, RF AGC
- Horizontal centre Item 02, H-PHA
- Vertical size Item 05, V-SIZ
- Vertical linearity Item 06, V-LIN
- Vertical S-Correction Item 07, V-SCO
- Gray scale Item 30-33, 35-37
SERVICE MODE
- Press and hold the MENU button on the Remote Control and press the VOLUME (+)button on the TV set. Following setting items appears on the screen.
- Select item by pressing the TIMER (Item No. UP) or SOUND MUTE (Item No. DOWN) button on the remote control handset.
- Adjust data value by pressing the VOLUME +or VOLUME -button on the remote control handset.
- To return to normal TV mode, press the MENU button on the TV set or the remote control handset.
GRAY SCALE ADJUSTMENT
Items 30-33, 35-37 GREY SCALE- Receive a monochrome circular pattern.
- Set the brightness and colour to normal, contrast to maximum.
- Enter to the service mode.
- Select No. 30 RBIAS (Red Bias), No, 31 GBIAS (Green Bias), and No. 32 BBIAS (Blue Bias) and set each data to 0 by pressing the VOLUME + or - key.
- Select No. 33 RDRIV (Red Drive) and No. 35 BDRIV (Blue Drive) and set each data to 64 by pressing the VOLUME + or - key.
- Turn Screen Control on the FBT (T471) to minimum (fully counter-clock-wise).
- Select No. 36 (1-line appear).
- Advance Screen Control clockwise to obtain just visible one colour line. If line does not appear, place this control to maximum (fully clockwise).
- Raise each Bias Level with 1, 2, 5, 6, 9 and 0 keys to obtain just visible white line.
- Select No. 37 DRV (Drive Adjustments).
- Adjust Red and Blue Drive Levels alternately with 3, 4, -/-- or RECALL key to produce normal black and white picture in highlight areas.
- Check for proper grayscale at all brightness levels. To turn off the TV Service Menu display, press the MENU key.
SPECIAL FUNCTIONS
- Volume Lock setting: With this function, a maximum sound volume limit can be set at any level.
- Tuning Lock setting: Once TUNING LOCK is switched on, further channel tuning (Pre-set) is not possible. The Channel Swapping function also is not possible.
- Music Mode setting: When Music Mode is ON, Programmed position from “247” to “255” and “0” are set Music Mode. Only sound is provided and any picture is not on the screen under Music Mode.
- AV Start setting: Set AV-START to ON and every time the TV set is switched on, AV1 position will be the initial programmed position.
NOTE: When making the VOLUME LOCK setting, set the desired maximum sound volume by pressing the VOLUME + or -button before entering Special Function setting mode.
- To enter into the special function setting mode, press and hold the MENU button of the remote control, then press the PROGRAMME DOWN button on the TV set.
- Select an item of the special functions by pressing the PROGRAMME UP or DOWN button on the remote control or the TV set.
- Set the selected special function “ ON “ by pressing the VOLUME + or - button. To cancel, set to “ OFF”.
- Press the MENU button of the remote control to return to the normal TV mode.