Panasonic Repair Tips
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Results: 2911
Results: 2911
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PANASONIC |
Z3 CHASSIS
|
Field - reduced height with poor lin | C404 4µ7 50v | ||
| PANASONIC |
Z3 CHASSIS
|
Failure to start | R802 330k o/c - bias provider for chopper chip | ||
| PANASONIC |
Z3 CHASSIS
|
Failed to start - int, with no r/c operation | 5v supply from small trfmr at tpe2 = 4.4v; d1124 5v1 zener leaky | ||
| PANASONIC |
Z3 CHASSIS
|
Dead - no volts from psu | Remove q806 st/by tr & wind up mains via variac; all worked ok & q806 2sa683 was faulty | ||
| PANASONIC |
Z3 CHASSIS
|
Dead | R801 4r7 5w o/c, ic801 str50103a-m s/c, d816 ht sr2kn prot diode s/c, q806 st/by sw tr 2sa683 s/c, r559 10r 7w o/c, q551 2sd1439 lop tr leaky | ||
| PANASONIC |
Z3 CHASSIS
|
Cuts out on bright scenes | R316 47k in beam lim cct o/c | ||
| PANASONIC |
Z3 CHASSIS
|
Colour at max & won't reduce - osd does alter | Ic1101 micro pin 31 doesn't vary when col adj. control carried out in ic101 pin 21 on if/dec panel; when this pin grounded a mono pic observed; d1149 ma165 diode leaky | ||
| PANASONIC |
Z3
|
Xray prot working | Check r560 270k | ||
| PANASONIC |
Z3
|
Tuning drifting - worse from cold. | C17 ( 10nf ) leaky. | ||
| PANASONIC |
Z3
|
Trips off after 2 seconds | R560 270k in trip cct (185v supply to rgb monitor) | ||
| PANASONIC |
Z3
|
Trips off | R560 270k r552 27k | ||
| PANASONIC |
Z3
|
Stuck in stby ic1104 5v rail low at 4v | Q804 or zener diode d810 | ||
| PANASONIC |
Z3
|
Set buzzes from psu but dead | If pin 15 ic101 high ( x-ray protection ) try shorting to chassis , if set ok check q502 and r560 270k | ||
| PANASONIC |
Z3
|
Reduced height poor linearity | C404 ( 4u7 ) 50v | ||
| PANASONIC |
Z3
|
Powers up then goes dead | Remove q451 power up on variac , if field collapse check d4539 on odd occasions flashovers in tube cause diode to fail | ||
| PANASONIC |
Z3
|
Poor field lin top expanded bottom compressed | C458 may be 10uf 50v or 4u7 50v | ||
| PANASONIC |
Z3
|
Picture size flutters and set goes to stby int. | Str50103a us | ||
| PANASONIC |
Z3
|
No tuning | C17 0.01uf sc | ||
| PANASONIC |
Z3
|
No start up. if pin 15 ic101 shorted to chassis se | Check feeds to q502 | ||
| PANASONIC |
Z3
|
No picture - sound ok | Check for dry joints on crt socket |