Dicas Reparação PANASONIC
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Panasonic | Euro 4Z | Dead | The standby transistor Q951(2SC4004) S/C, it's emitter resistor R954(6R8), D958 (1N4148) S/C, and R975 (270R 1/2W fusible) O/C all in the standby circuit, would go up in a cloud of smoke repeatedly until I... eventually, located the culprit R964 (82R 1/8W) which had risen in value to approximately 260 ohms. It feeds D953 a 12V zener in the feedback circuit. | ||
| 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. | ||
| Panasonic | Euro 4 TX32PK2C | No rear surr sound | IC2704 TDA2030AV overheated: ok aft replacement | ||
| Panasonic | Euro 4 TX28PK2 | Trips with relay chattering after few mins | In overvolts mode - 150v HT gone high due to R872 dry joint | ||
| Panasonic | Euro 4 TX21MD4 | R/C int | Q852 (2SC1383QRS), which was going o/c intermittently. It provides a standby 5 volt supply. | ||
| Panasonic | Euro 4 | Starts up then goes dead straight away | HT feed res R877 o/c - when replaced have peak white raster - D554 200v rect s/c | ||
| Panasonic | Euro 4 | St/by only - if st/by relay overided & A1 increased has "rainbow" effect | Check vert o/p chip & VDP3108BC2 jungle chip | ||
| Panasonic | Euro 4 | FIELD HEIGHT INCREASES AND TWITCHES | C402 0.33mfd | ||
| Panasonic | Euro 4 | Cuts out when warm - may return to st/by | Resolder dry joints on IC801 (STRF6654LF51) | ||
| Panasonic | Euro 3HWS TXW36D | Loss of sync on chan change - ok on vcr chan | IC801 TDA9143-N1 | ||
| Panasonic | Euro 3H | field collapse | Mod kit TZS8EK003 reqd when replacing field chip IC451 TDA8350Q/N5. Costs 22p - worth >£10! | ||
| Panasonic | Euro 2S TX29AD2DPB | Burst of eht at switch on then trips off after about 7 secs with frame collapse visible just as it went off | IC601 VDP3108APPA1 jungle IC (42.22UKP) | ||
| Panasonic | Euro 2S TX29AD2DPB | Blank greenish raster with lines at top lh side - sound ok | IC601 VDP3108APPA1 jungle IC (42.22UKP) | ||
| Panasonic | Euro 2M TX25MD3 | St/by only/ whistle on sound when fixed | Q1212 BC847B blasted - when replaced set ok apart from whistle on sound caused by audio proc chip | ||
| Panasonic | Euro 2M | No sound (relay clicked a few times before set switched on). | Resolder xtal. X2101 beside audio processor chip IC 2101. |