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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: 1049
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
AiwaTVC211St/by onlyReplace EEPROM & R617 - the cause - which goes hi res 14-09-04

AiwaTVSE211No vid/raster with sound - no/poor OSDIC303 (OSD Sw) pt no Aiwa87A2116701014-09-04
AkaiCT2115UKLack of width & burning smellR824 100R 2W overheating due to dry joint L82414-09-04
AkaiCT2115UKSt/by onlyPCA84C640P micro14-09-04
Alba4859 11AK19No line drive at sw on (150v HT to LOPTr)Dis'd D814/815 (+14 & -14v audio o/p ic supply diodes). Replacing TDA2615 aud o/p chip resulted in bright white raster & flickering LED; R914 47R 200v feed to IC901 TDA6107Q on crt base o/c & IC s/c14-09-04
AlbaCTV11Dead.T301 o/c , Diode P600A o/c.14-09-04
AlbaCTV11Int dead.R304 high.14-09-04
AlbaCTV11No sound or raster - HT & display Ok.D/J T201 ( looks Ok ) , Q208 o/c.14-09-04
AlbaCTV11When removing back cover.Check for screw inside rear foot ( underside )14-09-04
AlbaCTV11/12DeadT301o/c, diode P600A o/c14-09-04
AlbaCTV11/12Dead apart from display & HTDry joints T201, Q208 o/c14-09-04
AlbaCTV11/12Int deadR304 hi res14-09-04
AlbaCTV3409 11AK20SLED stays green (pic ok)Q803 BC547 st/by sw tr leaky14-09-04
AlbaCTV4808 11AK19Comes on in st/by then if button pressed blinks pale greenCheck R914 47R safety res & TDA6108JK14-09-04
AlbaCTV4808 11AK19E3No tuning but tuning bar movesQ501 BF240 - BC548C works in this position14-09-04
AlbaCTV4851 11AK19Dead - no LED displayR806 22k o/c14-09-04
AlbaCTV4851 11AK19B-1Dead with 0nly 300v pri HTOpto coupler faulty - though more faults may be present (esp if it went off in a thunderstorm)14-09-04
AlbaCTV4859 11AK10-17DeadQ801 (BUZ77B), R809 (0.47R), IC801 (TDA4605-3), C817 (1µF 63v), R805 (330k 0.5w), D808 (BA159).14-09-04
AlbaCTV6682 11AK12green flyback lines can be seen on the picture, otherwise is Okishno green output from TDA8362A(2Y), the IC is u/s - caused by intermittently arcing LOPTx (HR6465).14-09-04
AlbaCTV711Dead - 1.6A fuse blownR801 2R7 4w o/c, BU508A chopper tr Q800 s/c, R809 270k hi res - also check bridge rect diodes14-09-04
AlbaCTV711Dead - chopper tr BU508A s/cR801 2R7 o/c mains rect s/c, caused by R809 270k14-09-04

AlbaCTV711DEAD FUSE BLOWN R801 2R7 4w OC BU508A SC BRIDGECHECK R809 270k14-09-04
AlbaCTV711Dead.BU508A , diode in bridge rectifiercct , R801 ( 2.7ohm ) o/c , R809 ( 270k ) o/c.14-09-04
Alien3711 PT92Sound system changing - enter service modePress Text sub page key on r/c whilst holding Vol down button on TV. Using Prg + & - key to navigate thru settings to Option Byte 1. Sound systems appear - at right of each is 0 or 1, press Vol- & + keys to alter settings for PAL I to 1. Press TV on R/C to exit & store. Press & HOLD menu on r/c till the OVERVIEW menu appears, press menu once more until INSTALLATION menu appears. Navigate to sound setting & use Vol - & + keys to alter to PAL-I for UK sound STORE by using Vol + 14-09-04
Amstrad3121N 11AK12St/by only - psu o/ps present except 12 & 8vIC301 (CTV352/V1.4) and IC302 (ST24C02AB1).14-09-04
AmstradCTV2110Dead - psu failureApparently C410 was fitted the wrong way in some sets causing R 418 & R419 to overheat which causes the power supply to fail and heat damage to the PCB 14-09-04
AmstradCTV2110Dead - psu workingIC302 AN5601 jungle chip s/c at supply pin. When replaced, sparks from crack in print under lopt- repair & new AN5601 chip14-09-04
AmstradCTV2110Field collapseZD403 12v zener s/c & R435 5R6 o/c14-09-04
AmstradCTV2110HT reg poorC409 & C410 47µ14-09-04
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