datasheet,schematic,electronic components, service manual,repairs,tv,monitor,service menu,pcb design
Schematics 4 Free		Service manuals, schematics, documentation, programs, electronics, hobby ....


◦ register ◦ send pass
Bulgarian - schematics repairs service manuals SearchBrowseUploadWanted

DatasheetsChassis2modelRepair tipsFulltext searchCables & Connectors
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: 308
AiwaVXG142No raster - OSD OKQ1029 near tuner14-09-04
AiwaVXG142KDead - no st/byR516 270K, IC501 TDA4605-3, Q500 2SK2397-01MR14-09-04

AiwaVXG142KDead - no stbyR516 270k, IC501 TDA4605-3, Q500 2SK239714-09-04
AiwaVXG142KDead with st/by led lit - accepts a tape but no functsICP506 1A CP on tv pcb o/c14-09-04
AiwaVXG142KDead with fast tripping aft power cutC513/C538 1m 160v in psu hi esr14-09-04
AiwaVXG142KNo pic or vcr mechs - osd & sound okReplacing the faulty switching transistor Q511 [2SB926] which supplies the chroma +9V cured both faults. It is situated at the back LHS of the VCR board.14-09-04
AiwaVXG142KNo sigsQ1029 (2SC926) at rear of vcr pcb s/c - used a BD234 14-09-04
Bush2160NTX G1000Bright raster with soundNo HT to RGBs - R315 10R pin 9 LOPTx o/c14-09-04
GrundigG100Bright white raster - sound okR315 100R 1/4w fusible 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
page: 1 2 3 4 5 6 7 8 9 10 11
 FB -  Links -  Info / Contacts -  Forum -   Last SM download : CHINA COLOUR TV Multi - Used

script execution: 0.07 s