Make | Model | Problem | Solution | Date |
| | | |
Found: 14
|
Panasonic | Alpha 4 | Blank raster - sound ok - same on scart; on Txtshows "P100" at the top left and "*** TXT ***" flashing at the
bottom centre of the screen. | Replace IC3002 (M52472P) on the "H" panel. | 14-09-04 |
Panasonic | Alpha 4 | Blank screen - OSD OK | 9v supply to IF proc chip IC101 low at pin 41. R170 56R hi res | 14-09-04 |
Panasonic | Alpha 4 | Crackle from lh speaker | R2081 10k sm cracked | 14-09-04 |
Panasonic | Alpha 4 | Field - height increases when heated with twitching | C402 0µ33 mylar cap leaky in ramp gen cct | 14-09-04 |
Panasonic | Alpha 4 | Field cramp & buzz on sound | TDA3654 fop chip | 14-09-04 |
Panasonic | Alpha 4 | Inside the Panasonic Alpha 4 Chassis | See TV Mag June - Sept 1995 | 14-09-04 |
Panasonic | Alpha 4 | int lines across pic | UHF tuner faulty | 14-09-04 |
Panasonic | Alpha 4 | No pic - sound ok | R539 10 ohms fuse resistor in supply to line driver transistor O/C. | 14-09-04 |
Panasonic | Alpha 4 | OSD consist of black boxes only - pic & Txt ok | C3304 0µ01 leaky & R3309 820R hi res | 14-09-04 |
Panasonic | Alpha 4 | Shuts down at sw on with a splutter - HT only 60v | LOPTx | 14-09-04 |
|
Panasonic | Alpha 4 | Won't power up - works if pins 3 & 4 of opto shorted | Q890 2SC3311-R leaky | 14-09-04 |
Panasonic | Alpha 4 TX25X1 | No pic - sound ok | TDA3654 FOP I.C. and 800mA fuse next to it | 14-09-04 |
Panasonic | Alpha 4 TX25X1 | PSU o/ps die aft brief period at sw on with field coll noticed | VDP3108-A-29 vid/deflect proc chip - NLA. Fit replacement kit with alternative chip | 14-09-04 |
Panasonic | Alpha 4 TX25X1 | Stuck in st/by perm | STR56041M PSU chip brought back life to psu but FOP chip & Audio O/P chips both faulty as well as IC1213 micro which, when replaced, gave no sync - IC501 TDA2579B also faulty | 14-09-04 |