Noblex 21TC657 Service Manual
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VIDEO MODEMENUVOL VOLCHNOBLEXIMAGEService Adjustments-15-6. Select “HI SEPARATION” by pressing the CHANNELUP/DOWN button on the remote control or TV set.7. Adjust level of 4KHz at TP-318 (pin-39 of IC3401) tobecome minimum level by pressing the VOLUME (+/-)button on the remote control or TV set.8. To exit from the service mode, press the MENU button.TP-318 (L) Minimum leakage4KHzINPUT LEVEL 08HI SEPARATION 21LOW SEPARATION 34ADJUST: - /+CHOOSE: ▲▼EXIT : MENUFINE TUNING - +To return to normal TV mode, press the MENU button onthe TV set or remote control handset. (Or will automatical-ly return to normal TV mode after 5 seconds.)Fine tuning service modeFine tuning data value will be automatically stored in memory.Service Adjustment-3This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by theautomatic tuning.This function is available for one channel only and the fine-tuned channel is memorized into IC802 (EEPROM).FINE TUNING1. Enter the Service MenuWhile pressing the MENU button on the television,press the “4” or MENU button on the remote controlunit. The Service Menu now appear.2. Service Adjustments:Press and hold the VOLUME + or VOLUME - buttonon the remote control handset or TV set to make finetuning adjustment. Press and hold the VOLUME +button for higher frequency tuning, and press and holdthe VOLUME - for lower frequency tuning.[ Entering the Service Menu ]VIDEO MODEMENUVOL VOLCHIMAGEVIDEO MODEMENUVOL VOLCHCHNOBLEXIMAGE VOLUME +VOLUME - CHANNEL UPCHANNEL DOWN[ Service Adjustment ]MENU[ Exit from the Service Menu ] |
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