Panasonic Repair Tips
Search: panasonic
Results: 2911
Results: 2911
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PANASONIC |
ALPHA 1W
|
Dead | No 12v supply to line osc pin 7 ic101 from 12v reg ic851 - d855 o/c | ||
| PANASONIC |
ALPHA 1W
|
Cogging on verts | C808 10µ50v | ||
| PANASONIC |
ALPHA 1W
|
Chan ind lit with whistle and nothing else | No line drive traced to ic101 tda4505-m1 jungle chip | ||
| PANASONIC |
ALPHA 1 TXC74
|
Width lacking | Q753 2sd762 o/c | ||
| PANASONIC |
ALPHA 1 TXC71
|
Sound noisy - ok thro scart | C2401 dry joint on av/tuning/control board | ||
| PANASONIC |
ALPHA 1 TX3
|
Line whisle with cogging verts | Str54041m - also check elects | ||
| PANASONIC |
ALPHA 1 TX2482
|
Line foldover then dead with loptr 2sd1441 s/c | Check for dry joints line dr trfmr & loptx | ||
| PANASONIC |
ALPHA 1
|
Whistling d854 s/c (rm2) | C808 10mfd 63v in psu o/c replace rm2 | ||
| PANASONIC |
ALPHA 1
|
Tuning - drift. | Ic801. | ||
| PANASONIC |
ALPHA 1
|
Tripping with field collapse | R7000 180k & r7005 150k start up res on side panel | ||
| PANASONIC |
ALPHA 1
|
Tripping | D854 sr2kn avalanche diode s/c due to c808 10µ 50v low cap (could also be str54041m chopper chip) it is advisable to change both | ||
| PANASONIC |
ALPHA 1
|
Tda4505m-n3 replacement by tda4505e | Change r113 from 22k to 470k; r112 1m5 to 470k & re-align afc as nec | ||
| PANASONIC |
ALPHA 1
|
Squealing. | Line drive transformer. | ||
| PANASONIC |
ALPHA 1
|
Screams | Ht=20v lop tr 2sd1439 leaky cp567 1a cct prot o/c | ||
| PANASONIC |
ALPHA 1
|
Replacing tda4505m-n3 with tda4505e | Change r113 from 22k to 470k; r112 from 1m5 to 470k; align afc for optimum pic | ||
| PANASONIC |
ALPHA 1
|
Replacement of tda4505m-n3 | You can use cheaper tda4505e if r113 changed from 22k to 270k, r112 from 1m2 to 470k & re-align afc coil | ||
| PANASONIC |
ALPHA 1
|
Remote commands int ignored | Dry joint x3505 xtal on txt pcb | ||
| PANASONIC |
ALPHA 1
|
Reduced top frame after a few minutes. | Scan coils! | ||
| PANASONIC |
ALPHA 1
|
Raster - blanking out. | Ic801. | ||
| PANASONIC |
ALPHA 1
|
Q551 keeps blowing | Check dry-joints on line output transformer |