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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: 83
BushBTV14Completely deadQ603 BC548C in psu14-09-04
BushBTV14TrippingDis pin 2 on conn on vcr panel from psu, if stops replace IC661 5v reg14-09-04
BushBTV17No functs - micro locks upMod kit from Alba pt no BTV17 - contains small panel with EEPROM - available from CHS14-09-04
BushBTV17No sound thro tuner - ok on pbackReprog EEPROM - details in vault also EEPROM kit available from SEME for ?814-09-04
BushBTV17No sound, no chan store, reverts to st/by aft 20 minsEeprom reqs reprog14-09-04
BushBTV17Pin code removalEnter any code 3 times until "protected" is displayed, now press 'Vol-' on TV and '7' on R/C14-09-04
BushBTV17St/by onlyMod kit pt no BTV17MODKIT consisting of small plug in pcb with instructs usually cures it14-09-04
BushBTV17St/by onlyMod kit BTV17MODKIT consisting of small plug in module reqd14-09-04
BushBTV170TNo TV sound - Pback sound ok also no TxtChange data in NVM - address 0D to B3 for sound; address 08 = 44, 09 = 61 for txt14-09-04
BushBTV170TNo TxtReqs reprog - Bush will FAX sheet thro'14-09-04

MitsubishiC21M5BTInt start up at sw onNo line osc - R704 on SCL to micro o/c ( may be marked R703)14-09-04
MitsubishiCM21M5BTdeadQ901, R991, IC901, D909, C914 & Q552 replaced. A BU 508DF or BU2506DF works in place of BU2506DX Q55214-09-04
MITSUBISHICT21M5BTDEAD OR INT START UPCHECK R704 FOR O/C SOMETIMES MARKED R703 ON PCB14-09-04
MitsubishiCT21M5BT EE4Int loss of pic - sound still presentInvisible dry joint IC650 TEA5101B RGB o/p chip on crt base14-09-04
MitsubishiCT25M5BTE/W DISTORTION, LACK OF HEIGHTREPLACE EEPROM IC14-09-04
MitsubishiCT25M5BTSound int mutesIC701 micro ST9291N614-09-04
MitsubishiCT25M5BTSound, no rasterReplace Q6E7 (JC501-R) on the tube base panel (part of the spot-killer circuit). It had a B-E leak and was failing to turn on Q6E8 (2SA950-Y) which in turn robbed the 12 volt feed to pin 2 of the CRT driver chip IC660 (TEA5101B).14-09-04
MitsubishiCT25M5BT EE4Field collapseTEA2031A (IC551) & supply decoupler R516 0R82 safety resistor.14-09-04
MitsubishiCT25M5BT EE4Green LED only - prev int off - HT presentNo line dr from IC201, no micro activity, replace EEPROM 24C08 & set up14-09-04
MitsubishiEE4 CT21M5BTReverts to st/by aft 15mins with a sqealHT was too high at 137V, due to R954 (120K in this set) going high14-09-04
MitsubishiEE4 CT25M5BTChopper Tr blows aft few daysReplace Q901 (chopper), R901 (4R7 10W), D909 (3V Zener) and change 220R resistor on the print side of the CRT PCB to 1K2 1/2 watt.14-09-04
MitsubishiEE4 CT25M5BTDead - blows chopper tr s/cmod, i.e. change the 220R res on print side of CRT base to 1K2 1/2watt,this apparantly prevents a surge from blowing the chopper at switch off14-09-04
PanasonicZ185 TX14BTTuning absentReplace eeprom 24C16 with new reprogrammed chip14-09-04
SamsungBT110No tuningR128 6k8 feed res to 33v reg o/c14-09-04
SamsungBT110Servicing the Samsung Model BT110See TV Mag Aug 199314-09-04
SamsungBT309KBlank white rasterDetector can in IF replaced14-09-04
SamsungBT309KBlank white raster.Detector can in IF strip.14-09-04
SamsungCI20520BTDead - off with a bangC805 2n2 800v split14-09-04
SamsungCI20S2OBTDead with 3.15A fuse shatteredC805 2n2 800v14-09-04
SanyoCBT2146Bright raster with fb linesR478 10R o/c14-09-04
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