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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: 2354
AiwaSE211KSt/by onlyR617 high (replace with 390K 1/4W) - located behind LOPTX.This causes the micro-controller to shut the set down and store this condition in the EEPROM. You can either replace the EEPROM with the correct one from Aiwa (which then requires setting up with a special handset), or use an EEPROM programmer to reset the values. There are two values that require resetting: $0139 should be $00 ($2F when faulty) $013C should be $00 ($33 when faulty) 14-09-04
AiwaTVSE211No vid/raster with sound - no/poor OSDIC303 (OSD Sw) pt no Aiwa87A2116701014-09-04

AiwaVXS140Blank raster & no VCR funct except clockFR551 [0.1 ohm 1/6 Watt] O/C 14-09-04
AiwaVXS140Lack of brightness on Video playback & off airNo 800V screen drive Increase FR752 from ( 1K ) to ( 1K5 ) PtNo 8702238806014-09-04
AiwaVXS140TV sect remains on (No st/by)115V power switching transistor Q550 [2SB816E] was S/C C-E14-09-04
AkaiCT-T21N32SI have an Akai CT-T21N32S which will not fire up, the red LED is illuminated on the front but nothing else happens, I have tested dozens of components but to no avail, the block diagram in the service manual I have is unreadable which is quite upsetting acure: replace eeprom IC602 ref 23-06-05
AkaiCT2107MS (Onwa)Int off with blob in centre of screenCheck for hairline cracks around chopper tfmr pins14-09-04
AkaiCT2867 SP71LSt/by onlyC093 or another cap in parallelmarked R093 removing these 2 surface mounted capacitors and cleaning the glue under that had fixed them to the pcb cured the problem14-09-04
AkaiP58SCInt Blank raster with flyback lines27Mhz crystal14-09-04
AkaiSN71B6Blank raster at sw on sound ok - pic slowly comesCRT low emission - reactivated14-09-04
AkaiSN71B6No raster, sound ok - if A1 advanced strange rainbow effectReplace TDA8172 IC NS10 low volts pin 2 & RK53 3R314-09-04
AkaiSN71B6 TV2851No pic - sound/EHT present - Field blankedRK53 3R fusible pin 3 LOPTx14-09-04
AkaiSP7101St/by onlyReplace C093 sm (on print side)14-09-04
AkaiTV3451 Stereo+2DeadVO1014-09-04
AkaiVariousTo enter service modePress Mute, OK, TV in sequence14-09-04
AlbaCTV14RSFrame collapse - no sound.D410 s/c , R425 ( 6.8R ) o/c.14-09-04
AlbaCTV14RSNo sound & field collR425 6R8 o/c, D410 s/c (12v supply from lop)14-09-04
AlbaCTV14RSVarious inc no tuning, sound, dead etcCracks in print on front panel14-09-04
AlbaCTV14RS/55Shows row of dots when vol adjIC601 MN6030 memory chip faulty14-09-04
AlbaCTV3409 11AK20SLED stays green (pic ok)Q803 BC547 st/by sw tr leaky14-09-04
AlbaSsangyong ETC. CDEAD ZD401 12v ZENER SC R414 12R 2W OC LOP TR SCCHECK HT SHOULD BE 114v CHECK ALL POWER SUPPLY CAPACITORS , ZENERS AND SOLDERING14-09-04
AmstradCTV2020/2028 Bush 2866Searches but finds no sigsR124 15K 2W O/C located behind the PSU in the centre nearest the front controls14-09-04

AmstradSTV20No col, pic dark & bending at sw onC73 100µ 35v14-09-04
AmstradSTV20No startup - relay chattering.R1997 ( 3.3MR ) gone high.14-09-04
AmstradSTV20St/by onlyR1997 2M2 o/c14-09-04
AmstradSTV20Whistle from psuSTK73907 IC190114-09-04
AmstradSTV2100NCuts out to snow. No Nicam LEDs, goes to st/by when heatedTest point between NICAM pcb & tuner screening can shorting together14-09-04
AmstradSTV2100NRed tint variesBlack conductive gunge near dec chip - scrape away all gunge14-09-04
AmstradWSTV3032Dead - BU2525 LOPTr s/cWhen replaced ran hot with smoke from D01 - EW driver chip STV2145 faulty14-09-04
AmstradWSTV3032NAccessing service modeEnter code 08914-09-04
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