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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: 78
AiwaVXD1420Pin code removalEnter wrong no 3 x, then press Vol- on set & "7" on R/C for 5 secs when "protected" appears14-09-04
AiwaVXT1420kDeadStart up Res R502 1M & R503 820k14-09-04

AiwaVXT1420KSt/by onlyLOPTr leaky14-09-04
Bush2420sound muting on some chans & no search locksync pulses at Q403 varying - base bias res R424 750k o/c14-09-04
DaewooCP420 GB14F7T1Int reverts to st/byRLY2 relay was operating when fault occurred - IC I807 (TOP210-PF1) the standby switch mode IC in the power supply 14-09-04
DaewooGB14F7T1 CP420St/by onlyR804 47k start up res14-09-04
FidelityZX4200Corrugated verticals.C87 ( 47uf )14-09-04
FidelityZX4200Dead - with faint ticking.D21 ( BY229P ) s/c , may be due to LOPTX being faulty.14-09-04
FidelityZX4200Field stretched at top, ragged verts & hum barC87 47µ 200v14-09-04
FidelityZX4200Int blowing BU508D TR5.C84 ( 2.2nf 2Kv )14-09-04
FidelityZX4200Int cutting out.C87 ( 47uf ) leaky.14-09-04
FidelityZX4200Lack of contrast.R111 ( 100k 1/2w ) RHS of LOPT.14-09-04
FidelityZX4200Lack of width - HT low.C87 ( 47uf ) leaky.14-09-04
FidelityZX4200No go - just1 Psst at switch on.C93 ( 1uf , 100v ) o/c by TDA4503 IC.14-09-04
FidelityZX4200Small raster.Replace C111 with a 47uf 250v )14-09-04
FidelityZX4200Switching off - Tuning drift.C87 ( 47u f 250v )14-09-04
FidelityZX4200Tripping.TR5 ( BU508D ) s/c.14-09-04
Goodmans1420RAll progs slightly mis-tuned & not stopping during search tuneAll that was required was a slight tweak of the hex core in the afc coil14-09-04
GoodmansTVC141 CP420Focus & screen adj faulty - looks like CRTI501 TDA8374A14-09-04
HitachiC1420VTCrack from LOPTx & st/by onlyreplace loptx14-09-04
HitachiC1420VTNo pic/soundNo tuning volts - 33v stab ic faulty14-09-04
HitachiC1420VTSt/by onlyProt tr Tr7550 faulty14-09-04

Matsui1420DeadChopper tr 2SC3156 s/c - used BUX48A, 3R9 5w dropper o/c, D508 s/c used RGP15M.14-09-04
Matsui1420Dead2A fuse blackened; Chopper tr s/c; 3R9 5w dropper o/c; dry joints chopper tfmr & replace C508 4µ714-09-04
Matsui1420DeadD508 R2M SC. IF FAULT REOCCURS CHECK OR REPLACE LINE DRIVE TX14-09-04
Matsui1420Dead - low HT (60v) - ok on bulb (120v)LOPTx s/c winding - HT correct at 103v after replacement14-09-04
Matsui1420Field crampC412 1µ 25v tant14-09-04
Matsui1420FIELD CRAMP AFTER WARM UPCHECK C412 1mfd , 25v14-09-04
Matsui1420Green screenR807 8k2 on crt base hi res14-09-04
Matsui1420POOR FIELD WHEN WARMC412 1uF 25v TANTALUM14-09-04
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