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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: 38
AiwaC202KERField collapseFusible link 1500 marked as jumper lead from loptx to reg via D681314-09-2004
AiwaCXZR800KAt sw on relay clicks "DEMO" displayed then dead - keeps repeatingCheck 2 x 2SK2723 FETs on sound o/p heatsink14-09-2004
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) 14-09-2004
AiwaTVC211St/by onlyReplace EEPROM & R617 - the cause - which goes hi res 14-09-2004
AiwaTVSE211No vid/raster with sound - no/poor OSDIC303 (OSD Sw) pt no Aiwa87A2116701014-09-2004
AiwaVTV CTV/VCRDeadR 519 100k STARTUP CIRCUIT. HT SUPPLY ( 103v ) VIA THIS CIRCUIT. SIMILAR TO ORION VTV.14-09-2004
AiwaVX9142KDeadR516 270k in psu o/c14-09-2004
AiwaVXD1420Pin code removalEnter wrong no 3 x, then press Vol- on set & "7" on R/C for 5 secs when "protected" appears14-09-2004
AiwaVXD2120KPin code resetting when lostunplug set for 1 hour plus. reduce volume to minimum. simultaneuously press Volume down on unit and "7" to reset pin code and customer ID14-09-2004
AiwaVXG142No raster - OSD OKQ1029 near tuner14-09-2004
AiwaVXG142KDead - no st/byR516 270K, IC501 TDA4605-3, Q500 2SK2397-01MR14-09-2004
AiwaVXG142KDead - no stbyR516 270k, IC501 TDA4605-3, Q500 2SK239714-09-2004
AiwaVXG142KDead with st/by led lit - accepts a tape but no functsICP506 1A CP on tv pcb o/c14-09-2004
AiwaVXG142KDead with fast tripping aft power cutC513/C538 1m 160v in psu hi esr14-09-2004
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.14-09-2004
AiwaVXG142KNo sigsQ1029 (2SC926) at rear of vcr pcb s/c - used a BD234 14-09-2004
AiwaVXS140Blank raster & no VCR funct except clockFR551 [0.1 ohm 1/6 Watt] O/C 14-09-2004
AiwaVXS140Lack of brightness on Video playback & off airNo 800V screen drive Increase FR752 from ( 1K ) to ( 1K5 ) PtNo 8702238806014-09-2004
AiwaVXS140TV sect remains on (No st/by)115V power switching transistor Q550 [2SB816E] was S/C C-E14-09-2004
AiwaVXT1000Dead TV sectIC4 STK7348, R103 1R5 3w, R104 27R 3W, R105 1k 1/2w. C90 1µ 50v was to blame14-09-2004
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