Sansei TS5129T, Service Manual

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Service Adjustments
FINE TUNING
- +
To return to normal TV mode, press the MENU button on
the TV set or remote control handset. (Or will automatical-
ly return to normal TV mode after 5 seconds.)
Fine tuning service mode
Fine tuning data value will be automatically stored in
memory.
Service Adjustment-3
This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by the
automatic tuning.
This function is available for one channel only and the fine-tuned channel is memorized into IC802 (EEPROM).
FINE TUNING
1. Enter the Service Menu
While pressing the MENU button on the television,
press the “4” or MENU button on the remote control
unit. The Service Menu now appear.
2. Service Adjustments:
Press and hold the VOLUME (+/-) button on the
remote control handset or TV set to make fine tuning
adjustment. Press and hold the + button for higher
frequency tuning, and press and hold the - for lower
frequency tuning.
[ Entering the Service Menu ]
[ Service Adjustment ]
6. Select “HI SEPARATION” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
7. Adjust the level of 4KHz at KFF pin-1 (pin-39 of IC3401)
to become minimum level by pressing the VOLUME (+/-)
button on the remote control or TV set.
8. Repeat steps 4 to 7 for best separation.
9. To exit from the service mode, press the MENU button.
KFF pin-1 (L)
Minimum leakage
4KHz
[ Exit from the Service Menu ]
TV/AV
-
VOL
+
MENU
MENU
VOLUME -
INPUT LEVEL
HI SEPARATION
LOW SEPARATION
08
21
34
ADJUST : -
/
+
CHOOSE :
▲▼
EXIT : MENU