Sansei TS5121F, Руководство по обслуживанию

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Service Adjustments
-15-
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 / - or / -
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 Cursor
▲
/
▼
or CHANNEL UP/DOWN button on the remote
control or TV set.
7. Adjust the level of 4KHz at TP-318 (pin-39 of IC3401)
to become minimum level by pressing the / -
or / - button on the remote control or TV
set.
8. To exit from the service mode, press the MENU button.
TP-318 (L)
Minimum leakage
4KHz
INPUT LEVEL 08
HI SEPARATION
21
LOW SEPARATION 34
ADJUST: - /+
CHOOSE:
▲▼
EXIT : MENU
MENU CH
MENU
Cursor -
[ Exit from the Service Menu ]