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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: 711
SharpC1420HNo start upSTR4009014-09-04
SharpC1420HNo tuning - sound or channel change.Channel change button.14-09-04

SharpC1421Dead with no st/by relay energisingNo volts reset pin 11 of micro IC1002; D607 zener s/c14-09-04
SharpC1421Fback linesHT to RGB only 72v (180v) - C620 4µ7 250v & R620 22R14-09-04
SharpC1421Sound lowL301 in if unit14-09-04
SharpC1421St/by only - comes on briefly at sw onOK on 110v ac mains - STR40090 faulty14-09-04
SharpC1421 7PSLINE JITTERR308 820k14-09-04
SharpC1421 7PSLOW SOUND , ACTION OF VOL CONTROL ALTERS , ABOVE HACHECK L301 - IF UNIT14-09-04
SharpC1421 7PSSet dead StBy relay not enigisedCheck pin 11 IC1002 for reset V & D60714-09-04
SharpC1421 7PSStuck in standby.RY701 RELAY WINDING OC14-09-04
SharpC1421 7PSStuck in StBy EHT comes up then goes into StBySTR40090 u/s14-09-04
SharpC1421HSt/by onlyRY701 relay o/c winding14-09-04
SharpC1430Hpic stable with no sound, when sound is up then pic shakes in sympathy with soundreplace R680 10k. It is connected to Q610 line startuo regulator, and if o/c causes PSU overcurrent to become operative and lower supply voltage under current demand presented by sound output stage.14-09-04
SharpC1430HShuts down aft 4 minsIncreasing brightness instigates fault - beam curr lim prot fault - R623 1M2 o/c14-09-04
SharpC1430HSOUND MODULATES PIC , OK. WITH NO SOUNDR680 HIGH OR OC. 10K14-09-04
SharpC1431Dead with psu workingNo 12v pin 8 X0712 - R679 100k o/c14-09-04
SharpC1431Reverts to st/by aft 10 secs of sw onTo dis trip - disconnect Q603 - if ok then the fault is in trip cct; R623 1M2 o/c & check other hi val res14-09-04
SharpC1431Set dead PSU working line osc does not startCheck for 12V at pin 8 X0712 if missing R679 ( 100K ) o/c14-09-04
SharpC1431HDead - psu works with 115v HT to LOPNo line dr - R679 100k in supply to IC801 o/c14-09-04
SharpC1451EFlashing pic after warmed upC619 10µ 100v14-09-04
SharpC1451SCExcessive horizontal width.Check replace C613 cap.14-09-04
SharpC1451SCExcessive horizontal width.Check replace C613 cap.14-09-04

SharpC1451SCFoldedover picture,reduced height and visible white line in te centre of screen.Change C508 2,2uF/35V tantalum cap. Seemed to be O.K with a VOM.14-09-04
SharpC1451SCFoldedover picture,reduced height and visible white line in te centre of screen.Change C508 2,2uF/35V tantalum cap. Seemed to be O.K with a VOM.14-09-04
SharpC1495FIELD COLLAPSER511 15k R512 1k214-09-04
SharpC1495Field collapseR511 15k & R512 1k2 o/c14-09-04
SharpC14ET1EKBright blank raster with no soundCheck spker plug in CN201 NOT CN60214-09-04
SharpC1871Field partial collapseR52514-09-04
SharpC1871Frame collapse.R525.14-09-04
SharpC1891Brightness variation.Resistors in series with first anode control arcing.14-09-04
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