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Repair tips

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: 45
Bush2160NTX G1000Bright raster with soundNo HT to RGBs - R315 10R pin 9 LOPTx o/c14-09-04
GrundigG1000bright raster sound okR316 10R in HT o/c Also replaced rect & smoother to be safe14-09-04

GrundigG1000Dead - IC500 ST6365 micro not being resetNo reset pulse pin 33 due to either Tr540 BC847 or Tr451 BCX19 sm trs going s/c - replace both14-09-04
GrundigG1000Dead - lop tr s/c & high HT (200v)D105 BAS16 sm leaky14-09-04
GrundigG1000Dead - no 9v supplyR116 fusible o/c IC102 5v reg overheats - C543 sm cap under µ s/c14-09-04
GrundigG1000Dead - slowly tickingC104 Mains smoother o/c14-09-04
GrundigG1000Dead - trippingD304 BY133 in LOP s/c14-09-04
GrundigG1000Dead & tickingD301 BA157 26v supply s/c14-09-04
GrundigG1000Field collapseR337 100R14-09-04
GrundigG1000Instability using SCART i/pMicro chip faulty14-09-04
GrundigG1000Int PSU failure, grey scale variations etccheck C104 47mfd 400v - if Black Siemens type replace it14-09-04
GrundigG1000No lum in txtsm TR653 BC847 leaky b-e14-09-04
GrundigG1000No soundR550 4R7 (9v feed to audio chip) TDA2822M IC550 o/c14-09-04
GrundigG1000Peak white pic with fb linesR999 100R on crt base14-09-04
GrundigG1000pink raster with striations sound/rc okchanged 6 trs on crt base + 3 15k resistors cured it14-09-04
GrundigG1000Reduced width with foldoverCheck line freq is not twice normal - if so micro IC500 75990-200-63 faulty - mod available14-09-04
GrundigG1000St/by onlyD304 BY133 s/c ; R314 6k8 4w o/c14-09-04
GrundigG1000To enter service modePress "P+" & "P-" together at sw on. To choose a funct select menu on r/c. Adj with "P+" & "P-" buttons. Choosing another funct stores setting14-09-04
GrundigG1000Unfocused 6 inch wide band down screen onlyLine freq twice operating freq - cannot be adj - IC500 micro faulty14-09-04
GrundigG1000Blank raster and narrowR315 10R o/c - supply to RGB stage also dry joints power trs14-09-04
GrundigG1000St/by onlyNo line drive - R314 6k8 2w o/c14-09-04
GrundigG1000Tripping with burning smellLOPtx14-09-04

GrundigG1000 GT2103Bright raster with fb linesR315 10R near LOPTx o/c - supplies volts to RGB14-09-04
Matsui14R1 G1000Bright white raster - sound okR315 100R fusible o/c14-09-04
Matsui14R1 G1000Colour peculiarNo supply to CCD delay line chip IC801 - R831 47R o/c & C834 10nF s/c14-09-04
Matsui14R1 G1000Dead - no Led, but PSU seems okNo start up signal from micro;Tr540 BC847 leaky14-09-04
Matsui14R1 G1000Dead or pulses few times 1st with 300v across C104C106 100µ low in value or IC100 s/c14-09-04
Matsui14R1 G1000Dead - psu okR314 6k8 o/c - removes supply to line driver14-09-04
Matsui14R1 G1000Dead - s/c in LOP stageD301 s/c14-09-04
Matsui14R1 G1000Entering Service ModeHold down P+ & P- on set whilst sw on TV. To select adj pres V+ & V- at front of set togethr or "Menu" on handset. To carry out adj Press P+ & P-. To leave service menu press V+ or V- or "TV" on hset.14-09-04
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