Dicas Reparação HITACHI
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Hitachi | G7P MkII CPT2508 | Dead - LOPTr blows | IC701 TDA2579 | ||
| Hitachi | G7P Mk2 | Won't start up again aft being switched off | R913 100R in base of chopper tr o/c | ||
| Hitachi | G7P Mk2 | Tuning drift & nothing tuneable above Ch36 | Only 7v across 33v zener. IC101 HD401304R12S faulty | ||
| Hitachi | G7P Mk2 | Trips at sw on | C737 100µ in trip cct o/c | ||
| Hitachi | G7P Mk2 | Snowy raster & no controls work | pin 15 IC101 micro high -caused by faulty IC601 AN5521 FOP chip | ||
| Hitachi | G7P Mk2 | Reverts to st/by aft few mins | HT gone high as C906 4µ7 250v is faulty | ||
| Hitachi | G7P Mk2 | Pic blanks out int or goes bright & trips | C711 47µ 200v dry jointed by LOPTx | ||
| Hitachi | G7P Mk2 | off with smoke | C919 4n7 1kv & C928 2n2 1kv cracked cases | ||
| Hitachi | G7P Mk2 | off | R901 6R8 5W o/c BUT12AF chopper tr s/c ZD903 180v over volts diode ZD903s/c | ||
| Hitachi | G7P Mk2 | no tuning | R044 12k 0.5w o/c ZD002 30v tuning volts diode o/c | ||
| Hitachi | G7P Mk2 | No start up | C911 82pf across pins 2 & 3 TDA4601 psu chip | ||
| Hitachi | G7P Mk2 | no sound or pic - ht ok | field collapse. No 9v to field chip as MC7809 IC703 o/c | ||
| Hitachi | G7P Mk2 | NO GO | R920 100k OC | ||
| Hitachi | G7P Mk2 | Mass of lines at centre of screen | Comes/goes with board flex - C702 dry joints - near IC701 FOP chip | ||
| Hitachi | G7P Mk2 | int pic size/ht | C906 4µ7 250v |