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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: 139
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 ID14-09-04
AkaiCT2125Comes on with chirping noise & st/by led on then trips out after 1/2 minC817 100µ 25v14-09-04

AkaiCT2125Int blank raster with fb linesOK when con TD203 on txt pcb removed - TZ01 27Mhz Xtal14-09-04
Beko14212Tuning driftsC458 100nF sm near tuner or C460 breaking down (in parallel with C457 - not shown on diag) 0µ47 63v14-09-04
HitachiC2121T DaewooSquealing with no sound/picBurning smell coming from IC301 TDA8356 FOP chip which was faulty14-09-04
HitachiC2125T 11AK19KDead aft it went popD812 BYD33D s/c in 14v supply14-09-04
HitachiC2125T 11AK19Y4St/by onlyHandset was faulty even though it gave an o/p14-09-04
HitachiC2127TNo sound, no picture; OSD and TEXT are Okpin 21 (blanking) of IC201 TDA8361 stuck at 8V, replace IC201 and make sure that the correct "N" version is used, mine was TDA8361/N514-09-04
MitsubishiCT2124BMDeadC964 100µ50v o/c14-09-04
MitsubishiCT2124BMDeadC962 100µ & C974 10µ in -30v supply6had leaked & corroded adjacent print, also C965 220µ leaky in 12v supply14-09-04
MitsubishiCT2124BMLoss of tuning memorycheck IC702 for 5v at pin1 & -30v at pin 2. If missing check back to psu, if ok replace chip.14-09-04
MITSUBISHICT2124BMNOT SWITCHING ON FROM COLDREPLACE C964 100MFD50V14-09-04
MitsubishiCT2125TXDead - standby light flashing.HT @ 35v , D961 ( 6.2v zener ) leaky.14-09-04
MitsubishiCT2125TXDead.D909 ( 3v zener ) s/c.14-09-04
MitsubishiCT2125TXInt blowing line transistor.STR54041 , clean & resolder pins of line driver transformer.14-09-04
MitsubishiCT2125TXLarge black square int covers screen, floats left or right & int poor contrastC959 100µ 25v hi esr causing low 5v supply from reg - also check C964 10µ 50v, C962 100µ 50v, C905 470µ 25v14-09-04
MitsubishiCT2125TXNo sound mute.D361 ( 1N4148 )14-09-04
MitsubishiCT2125TXNo videoZ951 630ma fusible link in 8.5v line on psu14-09-04
MitsubishiCT2125TXSLIGHTLY OFF TUNEREPLACE IC10114-09-04
MitsubishiCT2125TXSound - will not tune right down or mute.D361 ( 1N4148 ) leaky.14-09-04
MitsubishiCT2125TXSound wont go offPin 4 audio chip hi at 2.3v (0.3v) - D361 1N4001 leaky14-09-04
MitsubishiCT2125TXTuning slightly off - unable to fine tuneIC101 MS1496P14-09-04

MitsubishiCT2125TXuser settings wont storeminus30v pin 2 eeprom IC702 low. C962 leaky also check other electros14-09-04
MitsubishiCT212STXSlow start upC962 100µ 50v o/c - corroded leg & check for dry joints esp R902/91614-09-04
PhilipsGR2.1 25ST1724Txt absent producing F7 on screen when selectedIC7800 micro on Txt pcb =- type PCF84C81/A89 - ensure correct type fitted14-09-04
PhilipsGR2.1 25ST1750/05BWidth excessive with no controlR3585 15R near LOPTx o/c14-09-04
PhilipsGR2.1 25ST1761Repeadly trippingPSU Works ok on dummy load; 1534 315mA Wickman fuse (O/C), R3545 100ohm (O/C), C2559 100uF 25v (leaking electrolyte), R3585 15ohm (O/C)14-09-04
PhilipsMD1.1E 25PT4521/25Dead after burning smellMains switch - seem to be a potential fire risk14-09-04
PhilipsMD2.12E"Digital scan" does not appear in the picture menuIn the direction for use is mentioned that in the picture menu the function 'Digital Scan' can be switched off. However during the picture modes; Super Zoom, 14/9, 16/9, subtitles an automatic the function 'Digital Scan' does not appear in the picture me14-09-04
PhilipsMD2.12E+5 V stand-by defective (also fuse 1580 defect)First check the +5 V supply panel before replacing the fuse. When the +5 V panel is defective, it could be that the +5 V becomes too high, which will damage the circuitry.14-09-04
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