Make | Model | Problem | Solution | Date |
| | | |
Found: 26
|
Hitachi | G7P Mk2 | Blank white raster. | C711 dry jointed by LOPTX. | 14-09-04 |
Hitachi | G7P Mk2 | buzz on sound - flat pic | vid det coil L202 | 14-09-04 |
Hitachi | G7P Mk2 | Dead | TDA4601 chopper chip - also replace C914/5/6/7 | 14-09-04 |
Hitachi | G7P Mk2 | Dead - HT high | X ray prot operating due to R716 51k res dry jointed | 14-09-04 |
Hitachi | G7P Mk2 | Dead R901 3R9 7w surge lim res o/c | C919 4n71kv leaky & check C928 2n2 2kv | 14-09-04 |
Hitachi | G7P Mk2 | Dead with only 33v HT at LOPtr | C909 150µ 400v mains smoothing cap o/c | 14-09-04 |
Hitachi | G7P Mk2 | Field bounce or st/by only | IC703 MC7809 9v reg dry jointed or faulty | 14-09-04 |
Hitachi | G7P Mk2 | FOP chip has short life | Check HT is not too high - if so U know what to do! | 14-09-04 |
Hitachi | G7P Mk2 | Goes off aft half an hour | Dry joints C711 47µ 200v | 14-09-04 |
Hitachi | G7P Mk2 | Green raster with flyback lines | R808 22k ?w o/c | 14-09-04 |
|
Hitachi | G7P Mk2 | grey raster with fb lines | C711 47µ 200v bulging & faulty by LOPTx | 14-09-04 |
Hitachi | G7P Mk2 | int pic size/ht | C906 4µ7 250v | 14-09-04 |
Hitachi | G7P Mk2 | Mass of lines at centre of screen | Comes/goes with board flex - C702 dry joints - near IC701 FOP chip | 14-09-04 |
Hitachi | G7P Mk2 | NO GO | R920 100k OC | 14-09-04 |
Hitachi | G7P Mk2 | no sound or pic - ht ok | field collapse. No 9v to field chip as MC7809 IC703 o/c | 14-09-04 |
Hitachi | G7P Mk2 | No start up | C911 82pf across pins 2 & 3 TDA4601 psu chip | 14-09-04 |
Hitachi | G7P Mk2 | no tuning | R044 12k 0.5w o/c ZD002 30v tuning volts diode o/c | 14-09-04 |
Hitachi | G7P Mk2 | off | R901 6R8 5W o/c BUT12AF chopper tr s/c ZD903 180v over volts diode ZD903s/c | 14-09-04 |
Hitachi | G7P Mk2 | off with smoke | C919 4n7 1kv & C928 2n2 1kv cracked cases | 14-09-04 |
Hitachi | G7P Mk2 | Pic blanks out int or goes bright & trips | C711 47µ 200v dry jointed by LOPTx | 14-09-04 |
Hitachi | G7P Mk2 | Reverts to st/by aft few mins | HT gone high as C906 4µ7 250v is faulty | 14-09-04 |
Hitachi | G7P Mk2 | Snowy raster & no controls work | pin 15 IC101 micro high -caused by faulty IC601 AN5521 FOP chip | 14-09-04 |
Hitachi | G7P Mk2 | Trips at sw on | C737 100µ in trip cct o/c | 14-09-04 |
Hitachi | G7P Mk2 | Tuning drift & nothing tuneable above Ch36 | Only 7v across 33v zener. IC101 HD401304R12S faulty | 14-09-04 |
Hitachi | G7P Mk2 | Won't start up again aft being switched off | R913 100R in base of chopper tr o/c | 14-09-04 |
Hitachi | G7PMk2 CPT2808 | To bypass Txt panel when a fault here is suspected of causing pic fault | Shorting pins 2 & 3 of the 5 pin connector (E001) on the main board. This links the video in to the sync out lines, thus restoring normal picture and sound. | 14-09-04 |