hitachi G7P Mk2 Repair Tips


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Search: G7P Mk2 hitachi
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Results 25
MakeModel Ch.SymptomProblem SolutionSolutionBy:
HitachiG7P Mk2
Won't start up again aft being switched offR913 100R in base of chopper tr o/c
HitachiG7P Mk2
Tuning drift & nothing tuneable above Ch36Only 7v across 33v zener. IC101 HD401304R12S faulty
HitachiG7P Mk2
Trips at sw onC737 100µ in trip cct o/c
HitachiG7P Mk2
Snowy raster & no controls workpin 15 IC101 micro high -caused by faulty IC601 AN5521 FOP chip
HitachiG7P Mk2
Reverts to st/by aft few minsHT gone high as C906 4µ7 250v is faulty
HitachiG7P Mk2
Pic blanks out int or goes bright & tripsC711 47µ 200v dry jointed by LOPTx
HitachiG7P Mk2
off with smokeC919 4n7 1kv & C928 2n2 1kv cracked cases
HitachiG7P Mk2
offR901 6R8 5W o/c BUT12AF chopper tr s/c ZD903 180v over volts diode ZD903s/c
HitachiG7P Mk2
no tuningR044 12k 0.5w o/c ZD002 30v tuning volts diode o/c
HitachiG7P Mk2
No start upC911 82pf across pins 2 & 3 TDA4601 psu chip
HitachiG7P Mk2
no sound or pic - ht okfield collapse. No 9v to field chip as MC7809 IC703 o/c
HitachiG7P Mk2
NO GOR920 100k OC
HitachiG7P Mk2
Mass of lines at centre of screenComes/goes with board flex - C702 dry joints - near IC701 FOP chip
HitachiG7P Mk2
int pic size/htC906 4µ7 250v
HitachiG7P Mk2
grey raster with fb linesC711 47µ 200v bulging & faulty by LOPTx
HitachiG7P Mk2
Green raster with flyback linesR808 22k ¼w o/c
HitachiG7P Mk2
Goes off aft half an hourDry joints C711 47µ 200v
HitachiG7P Mk2
FOP chip has short lifeCheck HT is not too high - if so U know what to do!
HitachiG7P Mk2
Field bounce or st/by onlyIC703 MC7809 9v reg dry jointed or faulty
HitachiG7P Mk2
Dead with only 33v HT at LOPtrC909 150µ 400v mains smoothing cap o/c