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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 1049
PanasonicEuro 2L TX21MD1White snow effect on screen on high brightnessIC601 VDP3108A digi sigs proc chip14-09-2004
PanasonicEuro 2L TX25MD1Filed foldover with thin R & G lines at topIC451 TDA8175 & D456 MA2160B - kit pt no TZS5EK00114-09-2004
PanasonicEuro 2L TX25MD1No pic - sound okF851 o/c then field collapse noticed. Fit FOP kit TZS9EK026-1 & blew FOP chip - D425 s/c & R702 o/c14-09-2004
PanasonicEuro 2L TX28LD1Field collapseTDA8175-3 FOP chip & D456 MA2160 - chips in short supply replace it with a TDA8177. Mod kit Part no TZS9EK026-1 from SEME14-09-2004
PanasonicEuro 2MNo sound (relay clicked a few times before set switched on).Resolder xtal. X2101 beside audio processor chip IC 2101.14-09-2004
PanasonicEuro 2M TX25MD3St/by only/ whistle on sound when fixedQ1212 BC847B blasted - when replaced set ok apart from whistle on sound caused by audio proc chip14-09-2004
PanasonicEuro 2S TX29AD2DPBBlank greenish raster with lines at top lh side - sound okIC601 VDP3108APPA1 jungle IC (42.22UKP)14-09-2004
PanasonicEuro 2S TX29AD2DPBBurst of eht at switch on then trips off after about 7 secs with frame collapse visible just as it went offIC601 VDP3108APPA1 jungle IC (42.22UKP)14-09-2004
PanasonicEuro 3Hfield collapseMod kit TZS8EK003 reqd when replacing field chip IC451 TDA8350Q/N5. Costs 22p - worth >?10!14-09-2004
PanasonicEuro 3HWS TXW36DLoss of sync on chan change - ok on vcr chanIC801 TDA9143-N114-09-2004
PanasonicEuro 4Cuts out when warm - may return to st/byResolder dry joints on IC801 (STRF6654LF51)14-09-2004
PanasonicEuro 4FIELD HEIGHT INCREASES AND TWITCHESC402 0.33mfd14-09-2004
PanasonicEuro 4St/by only - if st/by relay overided & A1 increased has "rainbow" effectCheck vert o/p chip & VDP3108BC2 jungle chip14-09-2004
PanasonicEuro 4Starts up then goes dead straight awayHT feed res R877 o/c - when replaced have peak white raster - D554 200v rect s/c14-09-2004
PanasonicEuro 4AV1 is ok but can't select AV 2 or 3IC 601 vidoeprocessor (VDP3120BC2 ) DC voltage pin 63 (AV2) and pin 64 (AV3) if near 0v (normal 1.5v) then replace IC 60114-09-2004
PanasonicEuro 4 TX21MD4R/C intQ852 (2SC1383QRS), which was going o/c intermittently. It provides a standby 5 volt supply.14-09-2004
PanasonicEuro 4 TX28PK2Trips with relay chattering after few minsIn overvolts mode - 150v HT gone high due to R872 dry joint14-09-2004
PanasonicEuro 4 TX32PK2CNo rear surr soundIC2704 TDA2030AV overheated: ok aft replacement14-09-2004
PanasonicEuro 4 TXW28R4DPAttempts to start with a burst of EHT but reverts to stbyReplace 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.14-09-2004
PanasonicEuro 4ZDeadThe 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.14-09-2004
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