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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
PanasonicAlpha 1 TX3Line whisle with cogging vertsSTR54041M - also check elects14-09-04
PanasonicAlpha 1 TXC71Sound noisy - ok thro scartC2401 dry joint on AV/tuning/control board14-09-04

PanasonicAlpha 1 TXC74Width lackingQ753 2SD762 o/c14-09-04
PanasonicAlpha 1WChan ind lit with whistle & nothing elseNo line drive traced to IC101 TDA4505-M1 jungle chip14-09-04
PanasonicAlpha 1WCogging on vertsC808 10µ50v14-09-04
PanasonicAlpha 1WDeadNo 12v supply to line osc pin 7 IC101 from 12v reg IC851 - D855 o/c14-09-04
PanasonicAlpha 1WField collapseTDA4505M faulty - use TDA4505E & change R112 from 1M5 to 470k & R113 from 22k to 470k14-09-04
PanasonicAlpha 1WLoud wine but no picture.R851 ( 1.2R fusible ) go's high.14-09-04
PanasonicAlpha 1WNO COLOURTDA3562A14-09-04
PanasonicAlpha 1WNo sound or picture - squealing from PSU.D854 s/c , if still no good suspect LOPTX.14-09-04
PanasonicAlpha 2AFTER 1hr TEXT FLASHES ON SCREEN . TEXT LOSES SYNCC3511 10nF14-09-04
PanasonicAlpha 2AFTER 4hrs R567 BLOWS AND Q551 VERY HOTC502 DRY JOINTED14-09-04
PanasonicAlpha 2Analogue bars not locked - pic okC3511 220pf connected to pin 24 pulse gen chip on Txt panel leaky14-09-04
PanasonicAlpha 2Black line on RH side of picCheck dry joints line dr trfmr before LOPTr bites dust!14-09-04
PanasonicAlpha 2Blank raster - no tuningC2612 10µ non pol cap dry joints at pin 5 IC2601 TV/AV sw IC14-09-04
PanasonicAlpha 2Blank raster, no sound & unlocked chan noNo 12v on A panel due to R2420 0R68 o/c14-09-04
PanasonicAlpha 2BLOWS LINE TRANSISTORLINE DRIVER TX DRY JOINTED14-09-04
PanasonicAlpha 2BLUE DISAPPEARS AFTER HALF AN HOURC612 0.01uF ON PIN 5 IC60114-09-04
PanasonicAlpha 2Chan display onlyD851 leaky in secondary of psu14-09-04
PanasonicAlpha 2Chroma but no lumareplace TDA4565 CTI chip14-09-04
PanasonicAlpha 2Col smearing (red in this case)L353 on crt base cracked14-09-04
PanasonicAlpha 2COLOUR FAULTY WITH REF OSC TYPE RED/GREEN BARS RUNC642 10nf ( TO SET OSC. SHORT PIN 11 OF IC601 TO Chassis AND ADJ. TRIMMER )14-09-04

PanasonicAlpha 2Colour int off & changes hueC612 0µ01 pin 5 IC601 leaky or C642 leaky14-09-04
PanasonicAlpha 2Contrast - poor.R562 ( 130k , 0.25W ) o/c.14-09-04
PanasonicAlpha 2Contrast weakR562 130k ?w in beam current lim14-09-04
PanasonicAlpha 2DeadD854 & R815 ( 5.6ohm ) over volts diode14-09-04
PanasonicAlpha 2Dead - no line driveR851 2R2 in line dr tr supply o/c14-09-04
PanasonicAlpha 2Dead - was no pic to start withLOP tr 2SD1441 s/c, fusible R567 1A N25CP o/c, R851 1R2 1/2w o/c, replaced C855 100µ 35v, C808 10µ 50v (both hi esr)14-09-04
PanasonicAlpha 2Dead aft 20 minsOK if pins 3 & 4 of opto linked - D811 ON3105 opto coupler faulty14-09-04
PanasonicAlpha 2Dead aft 4hrs with LOPTr overheatedR567 o/c in LOP - C502 in line osc stage dry joint14-09-04
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