[TechAssist] GE- CTC187CN DARK WITH RETRACE
- From: <southadamstv@xxxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 25 Nov 2002 15:47:04 -0600
I HAVE 31 INCH GE AUDIO OK / NO LUMIANCE. DARK WHEN TURNED ON, WHEN SCREENS
TURNED UP RETRACE LINE AN SOME COLOR ON SCREEN. DON'T HAVE A COMPLETE SCHEMATIC
TO WORK WITH. BUT FROM WHAT DO HAVE THERE IS ONE TRANSISTOR (Q3301-SYNC AMP)
BASE VOLTAGE & SIGNAL ARE CORRECT ABOUT 5.5 VOLTS, BUT THERE BARELY ANY
VOLTAGE/SIGNAL ON THE COLLECTOR &MY SCHEMATIC HAS 8.49 VOLTS ON THE COLLECTOR
(NO WAVEFORM CHART FOR THIS AREA). COULD THIS BE RELATED TO THE EEPROM LOOKS
LIKE SOMEONE CHANGED IT SOMETIME BEFORE IT GOT TO ME. I ALSO RETOUCHED THE
TUNER GROUNDS. COULD SOMEONE POINT ME IN THE RIGHT DIRECTION?
Larry J. Kibodeaux
South Adams TV & VCR Repair
216 1/2 South Adams Avenue
Rayne, LA 70578
southadamstv@xxxxxxxxxxxxxxxx
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