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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: 534
GrundigCUC41KTDEAD POWER SUPPLY WORKINGTY40164 7812 OC14-09-04
GrundigCUC41KTDead.D655 ( BYW76 ) s/c.14-09-04

GrundigCUC4400Chan changes & vol varies intIR detector TFMS330014-09-04
GrundigCUC4400ERATIC LINE SYNCC2257 100nF 63v14-09-04
GrundigCUC4400Flickering/lines with pic breakupC2257 100n 63v in line osc14-09-04
GrundigCUC4400Int refuses to go to st/byCheck mains sw wiper contacts14-09-04
GrundigCUC4400No sound or Picture, EHT normal, screen is black.Change T2213 and T2221 on IF board. No leaks or any other defects were detected.14-09-04
GrundigCUC4400No sound or Picture, EHT normal, screen is black.Change T2213 and T2221 on IF board. No leaks or any other defects were detected.14-09-04
GrundigCUC4400Poor pic with ringingTDA5931 IC2210 on if panel14-09-04
GrundigCUC4400SEVERE PICTURE DISTORTION IN IF STAGETDA5931 US14-09-04
GrundigCUC4401Dead o/p volts from psu lowC633 100µ 25v o/c14-09-04
GrundigCUC4410Dead - BU508A LOPTr s/cTDA8140 chip giving dist line pulses - chip was casue of problem14-09-04
GrundigCUC4410Excess widthD7102 ZPD30 in E/W module s/c14-09-04
GrundigCUC4410No pic - sound ok - no line driveComes from IC526 TDA8140 which was dry jointed & faulty14-09-04
GrundigCUC4411Col intReplace sub carrier osc trimmer with a 15pFcap14-09-04
GrundigCUC44R RDead.C633 ( 100uf 40v ) s/c.14-09-04
GrundigCUC44R RDead.Dry joint on R516 by LOPT.14-09-04
GrundigCUC44R RFrame cramp top & bottom with flyback lines at topD421 ( 1N4935 ) leaky.14-09-04
GrundigCUC44XXStation ident on all the time.Its a dealer option - sw off by pressing Tv then reveal.14-09-04
GrundigCUC4511Thin hum bar causing coggingTDA8140 faulty or C52714-09-04
GrundigCUC4620Dead - tripler was arcingreplaced K536 tripler; T541; IC500 TDA8140; IC 2340 TDA2579; c541 220MF/40V; D546 BY22814-09-04
GrundigCUC4620FIELD COLLR525 0.33R D7001 SC14-09-04

GrundigCUC4620Field collapse - partialD7001 s/c, R525 0R33 o/c14-09-04
GrundigCUC4620No sound or raster - loptx screamsTDA8410 line dr chip u/s14-09-04
GrundigCUC4635No NICAM sound - mono sound okCheck wfrm at pins 3,4 & 33 of CF70123 IC2550. If ok at pins 3 & 4 but pin 33 is low dis pin 15 AMU2484 chip. If signal appears at pin 33 then AMU chip is u/s. If not both chips could be faulty - replacement board cheaper.14-09-04
GrundigCUC4635No pic aft tripler replacementIC2250 MC144130 chip in NICAM Module (I?C data line low)14-09-04
GrundigCUC46XXStation ident on all the time.Its a dealer option - sw off by pressing Tv then reveal.14-09-04
GrundigCUC50INT FIELD FAULTSCHECK FIELD PRESETS14-09-04
GrundigCUC52deadHT but nothing else - D661 BY229 o/c14-09-04
GrundigCUC52deadchopper tr & TDA4600 blown - R646 to pin 4 of chip hi res14-09-04
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