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


registersend 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: 33
Bush1433 11AK20M-3Trips at sw onD604 200v rect s/c - fitted RGP15 in lieu14-09-04
Bush1434 11AK20M-3Int tuning - no sigsresolder SMD`s around R584 / R521, located on underside of PCB near IC50114-09-04

Bush1434 11AK20M-3Shuts down with ticking noiseD604 BA157 s/c14-09-04
FergusonTX807 M3615UTDead apart from red LED pulsing - In Child LockTo release - Sw on TV at mains whilst holding in Magenta Txt key14-09-04
FergusonTX807 M3615UTLED stays green for 6 secs at sw on then reverts to st/byDL04 BY288 in E/W mod cct leaky14-09-04
HikondaRM300Fault picture/sound OK but gradually after 5 minutes H/V sync started to fail followed by a total video overload and vision buzz on sound.due to a 0.22Mfd 50V Tantalum capacitor C114 (used a polyester as replacement14-09-04
HikondaRM300sync failed aft 5 mins with vid overload & buzzC114 tant cap 0µ22 50v14-09-04
JVCC21M3EKBottom cramp, no col, pulling, warbling soundLow 12v supply (9v) on D405 - R421 0R68 hi res14-09-04
JVCC21M3EKDeadC910 0.1µ14-09-04
JVCC21M3EKLine freq off & lack of field bottom scanR421 0R68 risen to 5R14-09-04
JVCC21M3EKNo R/C operationX601 xtal wrong freq fitted - should be 4Mhz not 17Mhz14-09-04
JVCC21M3EKNo sigs or R/CZD603 5v6 zener faulty causing 5v to micro low at 4.4v14-09-04
JVCC21M3EKNo start up - maybe int.C901 ( 0.1uf ) in startup cct14-09-04
JVCC21M3EKNo visionCMOS switch IC202 4066B - comp video disappeared through it14-09-04
JVCC21M3EKPower supply not starting up , may be intermittant.Replace C910 0.1uF14-09-04
JVCC21M3EKSt/by onlyHT present 110v. Replaced C909, C911 47µ 50v 105deg, ZD401 12v zener s/c, R419 1R0 2w o/c14-09-04
JVCC21M3EK OnwaField collapse, no sound after replacing C909/911 R419 & 12v ZenerR421 0R68 ?w fusible o/c; D406 s/c - used BY22814-09-04
JVCC21M3EK OnwaNo soundIC601 micro has no PWM o/p on vol cont pin - chip faulty14-09-04
KENWOODKM3501TNO POWERCHECK RF SUPPRESSOR BETWEEN HV CAP AND MAGNETRON FOR DRY JOINTS14-09-04
MitsubishiCT21M3STXLOW HTQ953 JC501 Pt No 260P54305014-09-04
MitsubishiCT21M3TXNo signalsR702 22k in 33v line o/c14-09-04
MitsubishiCT21M3TXNo store tune & r/c responses spuriousX24C04P eeprom & check caps in psu - used SDA2516 in lieu14-09-04

MitsubishiCT25M3Slow response to front & R/C commandsResolder Xtal on Txt panel14-09-04
MitsubishiCT25M3TXTrips at sw on - ok when LOP dis'd HT correct at 145vLOPTr leaky - check for dry joints esp IC95114-09-04
MitsubishiCT25M3TX Euro 14Difficult to come on from st/by, wont stop at stations & graphics wrongC955 2200µ 25v leaked over EEPROM IC702 X24CO4P - both need replacing14-09-04
MitsubishiCT25M3TX Euro 14Tuning instructionsSelect chan & press preset on r/c (tuning display appears in blue at bottom of display), change to yellow by pressing up/down chan. press vol +/- to start search tune, then press vol + until channel is displayed, press preset button to store14-09-04
MitsubishiEuro 12 CT25M3TXBlank raster - ok via scart - eeprom IC702 X24C04P faulty14-09-04
MitsubishiEuro 14 CT21M3TXDead - but goes in & out of st/byHas 110v on LOPTr but no line drive dry joints IC951 - also check for dry joints on other regs14-09-04
MitsubishiEuro 14 CT25M3LTXField collapse - caused by FOP chip AN5521 which failed again shortly after replacementC560 3300µ 35v in 27v supply seems to have been cause14-09-04
PhilipsNicam 3AInt blowing 800Ma fuse F1642.Increase to 1.25AT.14-09-04
page: 1 2
 FB -  Links -  Info / Contacts -  Forum -   Last SM download : marantz pm559dc

script execution: 0.10 s