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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 3Stuck in standby.LOPTX14-09-04
PanasonicAlpha 3The Panasonic Alpha 3 ChassisSee TV Mag Mar-Jun 199414-09-04

PanasonicAlpha 3Txt - no pages but header present or jumping TxtC3511 220pF ceramic cap on Txt panel leaky14-09-04
PanasonicAlpha 3Txt poor with missing lines & corruptC3507 100pF leaky to pin 9 IC350114-09-04
PanasonicAlpha 3 Alpha 3No sound - dark blank raster.C1251 ( 10nf ) leaky , main microcontroller & memory chips.14-09-04
PanasonicAlpha 3 TX25W2Txt fault - header unstable & unsync in mix modeC3511 220pF on board H (connected to pin 24 timing of SAA5231 IC3501)14-09-04
PanasonicAlpha 3 TX28A2Txt lines at top of picC454 ( 4.7 uF; C455 ( 100 uF ) and frame output I.C. AN552114-09-04
PanasonicAlpha 3 TX28A2XE-W bowingR751 33R o/c14-09-04
PanasonicAlpha 4Blank 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
PanasonicAlpha 4Blank screen - OSD OK9v supply to IF proc chip IC101 low at pin 41. R170 56R hi res14-09-04
PanasonicAlpha 4Crackle from lh speakerR2081 10k sm cracked14-09-04
PanasonicAlpha 4Field - height increases when heated with twitchingC402 0µ33 mylar cap leaky in ramp gen cct14-09-04
PanasonicAlpha 4Field cramp & buzz on soundTDA3654 fop chip14-09-04
PanasonicAlpha 4Inside the Panasonic Alpha 4 ChassisSee TV Mag June - Sept 199514-09-04
PanasonicAlpha 4int lines across picUHF tuner faulty14-09-04
PanasonicAlpha 4No pic - sound okR539 10 ohms fuse resistor in supply to line driver transistor O/C.14-09-04
PanasonicAlpha 4OSD consist of black boxes only - pic & Txt okC3304 0µ01 leaky & R3309 820R hi res14-09-04
PanasonicAlpha 4Shuts down at sw on with a splutter - HT only 60vLOPTx14-09-04
PanasonicAlpha 4Won't power up - works if pins 3 & 4 of opto shortedQ890 2SC3311-R leaky14-09-04
PanasonicAlpha 4 TX25X1No pic - sound okTDA3654 FOP I.C. and 800mA fuse next to it14-09-04
PanasonicAlpha 4 TX25X1PSU o/ps die aft brief period at sw on with field coll noticedVDP3108-A-29 vid/deflect proc chip - NLA. Fit replacement kit with alternative chip14-09-04
PanasonicAlpha 4 TX25X1Stuck in st/by permSTR56041M 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

PanasonicAlpha2 TX21T1deadIC801 STR51424M14-09-04
PanasonicAlpha2 TX21V1int. low or no sound from right speaker, also cracklingC2441 100pF LEAKY14-09-04
PanasonicAlpha2 TX24T1loss of sync, no soundIC3501 SAA5231 FAULTY (VIDEO PROCESSOR ON H BOARD)14-09-04
PanasonicAlpha2 TX25T2black lines across screenR469 470R o/c14-09-04
PanasonicAlpha2 TX25T2deadLOPTr Q551 S/C, C808 10uF 50v14-09-04
PanasonicAlpha3 TX25A2Xno teletextC3517 100nF 50V LEAKY (ECQV1H104J2)14-09-04
PanasonicAnubis BStuck in demo modeSw on mains whilst depressing "Vol" & "Prog+" on set14-09-04
PanasonicCN516Dead - in prot modeWhen prot mode disabled, only scan bottom 1/3rd of screen due to D412 27v zener MA4270H s/c14-09-04
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