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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: 626
Bush1557NTXWhite raster with flyback lines.Check for 12v on ZD402 , if low check D404 & print between D404 & R42214-09-04
Bush1557NTX (Onwa)Tuning missingNo 33v tuning supply due to broken print by scart socket - due to rough insertion of scart plug14-09-04

Bush2002DeadZD401 12v 1w zener, R419 5R6 3w & 2 caps in psu - HT = 115v14-09-04
Bush2002 OnwaNO 12v FROM LINE STAGER421 ( 0.68ohm ) , R419 ( 5.6ohm ) , ZD401 ( BZX61-C12 ) C909 & C919 both ( 47uF ) 63V14-09-04
Bush2002Alow contrastR316 100k o/c14-09-04
Bush2004Line lock weakR491 47k14-09-04
Bush20093 col spots on screen at sw offcrt faulty14-09-04
Bush2011TrippingD605 leaky14-09-04
Bush2014DeadR504 ( 150K )14-09-04
Bush2014FoldoverC304 ( 4.7uF )14-09-04
Bush2014No pic with 8 lines across screen 1/4 way downR704 100R faulty - from pin 5 LOPTx via D60514-09-04
Bush2020180v rail low at about 105v.C416 ( 10uf 250v ) Adj to LOPT.14-09-04
Bush2020Blank raster - A1 brings up pic but then sameIC501 ( TDA3562A-TFK ) , A1 control not set correctly.14-09-04
Bush2020Blank raster with vertical black bands.IC02 socket.14-09-04
Bush2020Bright white screen or dark picture.R424 ( 27k ) o/c.14-09-04
Bush2020Brightness varies.R425 ( 56k ) o/c.14-09-04
Bush2020DeadR816 ( 4.7ohm ) Q801 s/c R808 ( 270K ) o/c14-09-04
Bush2020Dead - B+ volts present - no 12v to line dr trR811 1R1/2w safety res o/c14-09-04
Bush2020Dead - Fuse Not BlownR816 ( 4.7ohm ) o/c , Q801 o/c , R808 ( 270K ) o/c14-09-04
Bush2020Dead - HT Ok - no line drive.C808 ( 1000uf 25v ) , D805 s/c.14-09-04
Bush2020Dead with burning smell - fuse Ok.C808 ( 1000uf 25v ) , R811 ( 1ohm ) o/c.14-09-04
Bush2020Dead.C820 ( 100pf ) , C817 ( 10uf ) , C802 ( 100uf ) , R801 ( .68R ) , C810220uf ) , IC801.14-09-04

Bush2020High 110v HT.C818 ( 1uf 50v )14-09-04
Bush2020Int blank raster - red frame collapse.Drys on C307.14-09-04
Bush2020Int blank screen &/or thin red line across screenDry joint C307 - hidden under a strut14-09-04
Bush2020INT BLANK SCREEN OR SOMETIMES THIN LINE LIKE FIELDC307 HIDDEN BY PLASTIC STRUT14-09-04
Bush2020Int colourCrack in print around dec chip14-09-04
Bush2020Int no picture.IC02 ( TPU2732 )14-09-04
Bush2020Int red frame collapse.Drys on C307.14-09-04
Bush2020JUMPS IN AND OUT OF SBY DURING CHAN CHANGE OR ADJUCHANGE IC2 MDA2061 EEPROM14-09-04
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