| Make | Model | Problem | Solution | Date |
| | | |
| Found: 901
|
| Hitachi | G8Q | Stuck in AV mode. | R1569 ( 10k ) , IC501 | 14-09-04 |
| Hitachi | G8Q | Tripping | Try loading 145v HT line from bulb, could be TDA2579A IC701 tb chip. If still no go, lift R713 connected to pin 16 (trip) of IC701. If now ok then Xtal X1501 or EEPROM IC1502 could be cause | 14-09-04 |
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| Hitachi | G8Q | Tripping | C908 220µ fallen slightly in value | 14-09-04 |
| Hitachi | G8Q | Trips | Pin 2 IC901 incorrect at zero (2.3v). Crack at pin 3 Chopper tfmr | 14-09-04 |
| Hitachi | G8Q | Trips at sw on | C906 220µ 385v mains smoother | 14-09-04 |
| Hitachi | G8Q | Tuner drift | R001 47k, C001 100nf next to tuner | 14-09-04 |
| Hitachi | G8Q | Tuning - drift. | IC1503 ( ZTK33B ) | 14-09-04 |
| Hitachi | G8Q | Tuning - looks off tune - shimmering outline. | IC201 on IF PCB. | 14-09-04 |
| Hitachi | G8Q | Txt - very weak & shows only in mix mode | TDA3562 col dec chip | 14-09-04 |
| Hitachi | G8Q | Txt displays P100 and no other txt activity | Clean & check for dry joints Txt panel | 14-09-04 |
| Hitachi | G8Q | VERY FAINT AUDIO IN STANDBY | THIS IS NORMAL-SAY Hitachi | 14-09-04 |
| Hitachi | G8Q | Weak sync - esp on chan change | R932 0R2 safety res in 12v feed hi res | 14-09-04 |
| Hitachi | G8Q | Width excessive & no E-W corr | D705 BYW96D goes s/c & causes IC651 TEA2031A demise - also check C714 27nf | 14-09-04 |
| Hitachi | G8Q C2558TN | St/by only | IC901 UC3844, Q901 BUZ91A, Q902 SGSIF344 & Opto OC941 CNX82A | 14-09-04 |
| Hitachi | G8Q CPT2196 | Patterning, slow R/C response & int loss of sigs | C933 2200µ 25v 12v smoother leaking | 14-09-04 |
| Hitachi | G8Q/P | Dead with "--" in display with motorboating sound | Q1510 BC548B s/c on the Microprocessor sub-board | 14-09-04 |
| Hitachi | G8Q/P | Goes to st/by at sw on, will come on with R/C but with blank raster only | SDA line low. 5V regulator L7805 o/c on the text board and QF001 ICP N15 o/c near tuner. | 14-09-04 |
| Hitachi | G8Q/P | No pic - sound ok - line tearing before loss of pic | C933 2200µ 25v in 12v supply - also check C932 470µ 16v | 14-09-04 |
| Hitachi | G8Q/P | No pic or sound, blank raster with corrupted OSD | C932 1000µ 16v in 8v supply o/c | 14-09-04 |
| Hitachi | G8Q/P | St/by only - HT high at 200v | R941 100k o/c | 14-09-04 |
| Hitachi | G8Q/P | Txt - unable to return to pic without mains reset, blank screen etc | C932 470µ 16v had caused L932/R931 in 12v rail to fail due to ripple on 12v line - can damage TDA2579A & chips on Txt panel also | 14-09-04 |
| Hitachi | G8QP | Complete failure | Check for cracks in print around Chopper TX | 14-09-04 |
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| Hitachi | G8QP | DEAD , ONLY HT ( 110v ) BOTH 8v AND 12v LINES LOW | CHECK C933 2200mfd ON 12v | 14-09-04 |
| Hitachi | G8QP | HIGH BRILL AT SWITCH ON MAY RECOVER WHEN WARM | C 720 4.7mfd 250v | 14-09-04 |
| Hitachi | G8QP | LINE ACROSS SCREEN | R715 ( 1R0 ) HIGH | 14-09-04 |
| Hitachi | G8QP | SOUND NO PICTURE , NO LINE DRIVE AT PIN 11 TDA 257 | TDA2579 US | 14-09-04 |
| Hitachi | G8QP C2558TN | Dead - fuse o/c | C915 1n5 2kv in psu s/c | 14-09-04 |
| Hitachi | M | Field lin problem after replacing chip TDA 8350Q | D718 BYD33 under heatsinks split in 2 | 14-09-04 |
| Hitachi | M | To exit factory pre-set mode (Model no in red across screen) | switch on whilst depressing vol up/vol down buttons | 14-09-04 |
| Hitachi | NP6C | Startup - int startup. | Poor connections to module CP901. | 14-09-04 |