hitachi Repair Tips
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Results 930
Results 930
Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
---|---|---|---|---|---|
Hitachi | G8Q | EEPROM keeps becoming corrupted | Deguassing positor int arcing | ||
Hitachi | G8Q | Display corrupt | Check Q1502/3/4/5 - Q1505 was leaky BC548 | ||
Hitachi | G8Q | Diagonal bands of interference - esp in Txt | C932 470µ 16v | ||
Hitachi | G8Q | DEAD WITH LINE DRIVER TURNED FULLY ON AND LED NOT | CHECK AROUND IC1502 ( SAA1293 ) FOR ACTIVITY if none replace X1501 crystal | ||
Hitachi | G8Q | Dead with blackened mains fuse | Melted PVC tape from degaussing coils touching audio amps heatsink | ||
Hitachi | G8Q | Dead or int start up/off | Start up therm TH902 o/c | ||
Hitachi | G8Q | Dead- fuse blackened | Check TH902 thermistor | ||
Hitachi | G8Q | Dead apart from tripping | Txt panel dis'd & trip stops - C933 | ||
Hitachi | G8Q | Dead apart from chan no. | 12v supply only 5v - C933 2200µ 25v | ||
Hitachi | G8Q | Dead after smoking | C715 in E-W cct dry joints | ||
Hitachi | G8Q | Dead - went off with abang | TH902, also check Q901, Q902, ZD901, ZD903, D905, D907, D908 IC901, C908 , R910 & check print | ||
Hitachi | G8Q | Dead - no PSU operation | D907 BYV10-40 s/c also check UC3844 & Q901/2 | ||
Hitachi | G8Q | Dead - no line drive | Timebase chip TDA2579 faulty - no line drive o/p at pin 11 | ||
Hitachi | G8Q | Dead - intermittently. | Drys on T901 , D933 or LOPTX. | ||
Hitachi | G8Q | Dead - HT present - no line drive | St/by line from micro 3.5v (should be 8-12v on , 0v in st/by) D1504 1N4148 in st/by cct faulty | ||
Hitachi | G8Q | Dead - fuse shattered | Degaussing therm, Q902 s/c, ZD901 27v zener s/c, D903 leaky, IC901 UC3844 chopper chip sus & ZD902 | ||
Hitachi | G8Q | Dead - fuse o/c. | Change all transistors/diodes in PSU. | ||
Hitachi | G8Q | Dead - fuse FS901 o/c. | Drys T901 , check Q902 , ZD901 , OC941 , ZD941 , Q941/2 , D905 | ||
Hitachi | G8Q | dead - comes on eventually if on/off sw held in | volts across C908 gradually increases - TH902 thermistor hi res (approx 2M) remove & clean or replace (better) | ||
Hitachi | G8Q | Dead | RU2M 20v supply rect s/c & LA4270 audio o/p chip blown |