Make | Model | Problem | Solution | Date |
| | | |
Found: 22
|
JVC | AV28WR4EK | Crackle on sound oc Sky dig via scart - ok on RF | Audio o/p of dig Rx set too high - enter system set up in Menu & adj/store vol in audio menu | 14-09-04 |
JVC | AV28WR4EK | Pic shifted to right in all modes - may be int | Loss of hor fback pulses to IC101 due to Q501 2SC1815 s/c | 14-09-04 |
JVC | AV28WR4EKS | Dead | Replaced s/c MC44604P chopper chip, CP953 blown, optocoupler TLP721FD4GR and the error amp SE-135N finally cured the problem (HT was rising above its correct 145v) | 14-09-04 |
Panasonic | Euro 4 TXW28R4DP | Attempts to start with a burst of EHT but reverts to stby | Replace D558 1SR124-4AT82 S/C use BYD33M & R559 R33 Safety in supply to FOP ic. replaced LOPTr with beefed up one from Pan & resoldered line driver Tx & dry joints in LOPstage. | 14-09-04 |
Panasonic | EURO4 TXW28R4DP | dead, read LED on | LOPTr Q551 s/c, use kit TZS9EK001 | 14-09-04 |
Panasonic | EURO4 TXW28R4DP | no sound when rear speakers connected | replace IC2704 TDA2030AV | 14-09-04 |
Panasonic | EURO4 TXW28R4DP | stuck in stby | LOPTr Q551 s/c, use kit TZS9EK001 | 14-09-04 |
Panasonic | EURO4 TXW32R4 | sound srackling, vol goes up and down | replace IC251 LA4282 on E board | 14-09-04 |
Panasonic | TXw-28-R4 | tripping | lop tr s/c BU250BAX use 2SD1577LB as replacement | 14-09-04 |
Panasonic | TXW28R4 | St/by only LOPTr s/c (BU2508AXLB) | Replaced by 2SD1577LB for greater reliability | 14-09-04 |
|
Panasonic | TXW28R4 | Trips to st/by int | C464 220nF had a 22nF cap fitted in error | 14-09-04 |
Panasonic | TXW28R4DP | Sw off aft 15 secs - sound & pic ok | R558 120k by LOPTx fback from beam lim to prot cct | 14-09-04 |
Panasonic | TXW28R4DP Euro4 | Blnk raster - no OSD | Microprocessor IC1101 part number SDA5450C48 (30 UKP +VAT). | 14-09-04 |
Panasonic | TXW28R4DP Euro4 | No sigs - snow only on screen | leaky SMD transistor marked "BR" inside IF section of the tuner. I used MSB1218ART1 | 14-09-04 |
Panasonic | TXW28R4DP Euro4 | Sound dist from lh speaker | sound processor IC2102 MSP3410D part number MSP3410DPOB4 | 14-09-04 |
Toshiba | 140R4B | STATIONS CAN BE TUNED IN BUT LOSES BBC2 AFTER CHAN | TMM842P MEMORY IC | 14-09-04 |
Toshiba | 140R4B | The picture was dark , with erratic diagonal lines , | A slight tweak of the detector coil L103 cured the fault. | 14-09-04 |
Toshiba | 140R4B | Tripping - flashing. | 2SC3715 Q404 dry. | 14-09-04 |
Toshiba | 159R4B | TEXT LINES AT TOP | D203 | 14-09-04 |
Toshiba | 199R4B | Frame collapse. | IC303 , R317 o/c. | 14-09-04 |
Toshiba | 199R4B | INT. SOUND-VISION WHISTLING NOISE? | CHECK LOPTY | 14-09-04 |
Toshiba | 213R4B | Int / perm field collapse no drive at pin 1 TDA365 | C312 10nF sc | 14-09-04 |