jvc AV21F1EK JX Repair Tips




Search: AV21F1EK JX jvc
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MakeModel Ch.SymptomProblem SolutionSolutionBy:
JVCAV21F1EK JX
REPEATED FAILURE IC3101CHANGE C105 TO 4.7uF LINK -VE TO IC3101 HSINK
JVCAV21F1EK JX
PICTURE LOOKS TO HAVE HUM BAR ON ITL2001 IN CHOPPER BASE FEED OC Pt-No CELC005-2R5
JVCAV21F1EK JX
LED comes on for 10 secs then goes off in prot modeWith plug R dis'd to isolate psu from LOP stage still tripped. When plug Q removed (feed to audio chip) set stayed on. IC801 TA8216AH faulty
JVCAV21F1EK JX
Int tuner driftDry joints IC522 5v reg
JVCAV21F1EK JX
Int sync after 5 minsC02 tant cap in IF AGC cct
JVCAV21F1EK JX
Int loss of signals4Mhz Xtal inside synthesis tuner dry joint
JVCAV21F1EK JX
Hum bar on picRipple on HT line caused by L2001 in chopper tr base drive o/c
JVCAV21F1EK JX
Dead - int blows BU508AFI LOPTrsCheck for dry joints/resolder double sided video/chroma daughter board where line osc IC203 resides esp links EX001, 002, 004 015 & 019 - caused by int momentary loss of line osc
JVCAV21F1EK JX
COMES ON FOR 10secs WITH LEDS LIT BUT NO PICTURE AREMOVE PLUG "Q" IF SETS POWER SUPPLY THEN RUNS AT 127v REPLACE IC801 TA8216AH
JVCAV21F1EK JX
Blank screenBad joints pin 2 LOPTx
JVCAV21F1EK JX
Aft 5 Mins Pic shakes from left to right sometimesC02 or 6Mhz crystal