Hitachi Repair Tips
Search: hitachi
Results: 1065
Results: 1065
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| HITACHI |
G7PS
|
Low ht 40v & q903 chopper overheating | D905 s/c | ||
| 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. | ||
| HITACHI |
G7PII
|
St/by only - trips at sw on | Ic703 reg dry joints | ||
| HITACHI |
G7PII
|
St/by only - trips at sw on | Ht = 130v (110v) r909 39k risen in value and adj ht pot | ||
| HITACHI |
G7PII
|
St/by only | C906 4µ7 250v, zd903 130v zener s/c & r909 39k as a precaution | ||
| HITACHI |
G7PII
|
Slow start up | R909/2/3 all ok but c906 4µ7 250v hi esr & c905 100µ 160v | ||
| HITACHI |
G7PII
|
No start up - comes on briefly then trips | R909 39k hi res | ||
| HITACHI |
G7PII
|
No start up | Pin 9 ic901 low at 5v (9v) - c914 10µ 50v faulty | ||
| HITACHI |
G7PII
|
Int start up | Start up volts pin 9 ic901 only 2v - check/replace resistor chain r939,940,941,942,902,903 & c914 2µ2 | ||
| HITACHI |
G7PII
|
Int off | R919/920 100k also check r932 150k | ||
| HITACHI |
G7PII
|
Int field collapse | 9v supply to field chip drops to zero, ic703 mc7809 faulty or dy jointed | ||
| HITACHI |
G7PII
|
Field collapse | R719 2r2 safety res o/c - no other fault found | ||
| HITACHI |
G7PII
|
Dead - gives a rush of noise thr' spkr initially | C914 10µ 50v, c910 33µ 10v, c929 1µ 50v, c915 100µ 10v, c917 4µ7 50v all 105 deg | ||
| HITACHI |
G7PII
|
Dead | 82k start up resistors o/c & hi res | ||
| HITACHI |
G7PII
|
Dead | Zd903 130v zener s/c; replace r909 39k, r912 47k, r902/3 82k, c906 4µ7, q905 bf423 | ||
| HITACHI |
G7PII
|
Dead | R931 150k o/c; ic901 internal s/c; 2 diodes on print side s/c (between chassis & q901 base) - 1n4148 & 6v2 zener; but11af o/c base | ||
| HITACHI |
G7PII
|
Dead | C919 4n7 1kv had split - replacement was 2n2 | ||
| HITACHI |
G7P2
|
Wont start | Check - r931 ( 150k ) , r932 ( 120k ) , r919 and r920 ( 100k ) connected in pairs to tda4601 | ||
| HITACHI |
G7P MKII CPT2508
|
Pic pulls to right when heated | Q905 connection to pcb suspect - resolder | ||
| HITACHI |
G7P MKII CPT2508
|
Dead - loptr blows | Ic701 tda2579 |