Hitachi Repair Tips
Search: hitachi
Results: 1065
Results: 1065
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| HITACHI |
G8Q
|
Blank raster/no sound/tuning/front display distorted | Micro reqs reprog - see separate article | ||
| HITACHI |
G8Q
|
Blank raster, can't tune chans & front controls operate different functions | Reprog memory chip ic502 | ||
| HITACHI |
G8Q
|
Blank raster &/or line twitch | C933 2200µ & c937 1µ in 12v reg cct | ||
| HITACHI |
G8Q
|
Blank raster & no sound - stuck in av mode | Ic1501 micro faulty - pin 37 was being held low perm (should be low only when in av mode) | ||
| HITACHI |
G8Q
|
Blank raster - no chan display | Odd dashes pesent when buttons pressed. no 5v supply- d934 in chopper psu s/c & r933 2r0 u/s | ||
| HITACHI |
G7PSMK2
|
Standby only. | R902 ( 82k ) o/c. | ||
| HITACHI |
G7PSMK2
|
Int frame collapse. | Drys on frame ic & lopt. | ||
| HITACHI |
G7PSMK2
|
Dead - ht low 45v. | Change c910 , c914 , c916 , c929 | ||
| HITACHI |
G7PSMK2
|
Dead - ht at 145v. | R909 high. | ||
| HITACHI |
G7PSL2
|
St/by only | Zd903 130v zener s/c; c906 4µ7 250v hi esr; r901 6r8 5w o/c;q903 but12af s/c; f901 2.5a o/c - all caused by dry joints t901 | ||
| HITACHI |
G7PSL
|
St/by only | Q781 2sd1884 loptr, q903 but12af chopper tr & zd903 p6ke180a overvolts zener s/c - r760, r761, r762 & r766 2r2 ½w hi res | ||
| HITACHI |
G7PSL
|
No tuning - just snow ( tuning bar present on scre | R044 12k oc. zd002 ( 33v zen ) q003 | ||
| HITACHI |
G7PSL
|
No signals - osd searches | Tuning volts missing vt pin tuner, r044 12k o/c | ||
| HITACHI |
G7PSL
|
Field non lin | C712 2200µ 50v & c606 680µ 16v | ||
| HITACHI |
G7PSL
|
Field jitter when hot | D601 1n4002 | ||
| HITACHI |
G7PSL
|
Field chip has short life | Add 2 x 33v zeners in series - cathodes to pin 2 ic601 & anode to chassis - if this has no effect , could be crt flashover | ||
| HITACHI |
G7PSL
|
Excess bright raster | Rgb colls low volts - q801 bc558b leaky (on main pcb) | ||
| HITACHI |
G7PS2
|
When tried to tune in the correct display appeared | The 33v tuning voltage supply was missing because r044 ( 12k ) was open-circuit. | ||
| HITACHI |
G7PS2
|
Standby only | Ic703 dry joints | ||
| HITACHI |
G7PS2
|
Shuts down aft 20 secs with buzz | In prot mode (shutdown volts at pin 20 ta8690an) zd701 3v9 zener leaky |