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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: 313
AlbaCTV6682Blank rasterTDA8362A in prot mode - C707 in field fback volts supply14-09-04
AlbaCTV6682Field coll & no soundNo volts at ramp gen pin 43 TDA8362A; R818 22k o/c14-09-04
AlbaCTV6682Field collapseR181 22k in 33v supply gone hi14-09-04
AlbaCTV6682Int then deadchopper tfmr dry joints14-09-04
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
AmstradCTV2020/2028 Bush 2866Searches but finds no sigsR124 15K 2W O/C located behind the PSU in the centre nearest the front controls14-09-04
B & O3866Field - small with linesReplace C44,45,47 and C49 also IC2 TDA217014-09-04
B & O3866St/by onlys/c loptr Tr11 S2000A3, dry joints C34 6n8 etc14-09-04
B & OL2502 (3866)Dead & squealingResolder a mass of dry joints on the PSU & line output panel then replace the short circuit line output transistor (TR11) S2000A3.14-09-04
B & OL2502 3866Int starting , chopper drive present. If pin 3 IC1 , LM358 low check R14 & R16 , 220k.If still no go , check TR20 on Tuner IF PCB .14-09-04

B & OLZ5000 3766Won't work on batt - ok on mainsAux sw behind mains sw contacts needed resetting - make sure battery supply is adequate14-09-04
Beko16628NSDeadR105 33k 2w o/c14-09-04
Bush2866NTXBlank raster only when tuningR124 15k 1w o/c14-09-04
Bush2866NTXDeadPSU elec caps, BUZ77, hi value r's 14-09-04
Bush2866NTXDeadLOPTx, D577 s/c, R711 on e/w (4R7)14-09-04
Bush2866NTXDeadLOPTr Q602, C620 470nF 400v, C698 1000pF 2Kv, D105 BYD33J, I576 TDAFOP chip & R575 4k7 hi res14-09-04
Bush2866NTXDeadR103 47k 1w in PSU o/c14-09-04
Bush2866NTXDead - chopper tr s/cR102 68k 2w & replace C106 33nF 630v, and C107 1Nf 2kv. As part of the fault, R101 2r2 5w was open circuit, For good measure, the following should also replaced c109 1uF 50v, C112 47uF, I101 TDA4605-3, R108 270k 2w, R109 680k 2w.14-09-04
Bush2866NTXDead - LOPTr BU2508DF s/cLine Drive Transistor (Q580) - Type "F422" - Fitted 2SC2271 was the cause even tho' checked ok 14-09-04
Bush2866NTXDead - LOPTr Q501 BU2508DF s/cR604 3R3 2w on E/W panel overheating when LOPTr replaced - C596 0µ011 o/c14-09-04
Bush2866NTXDead - mains fuse blownchopper transistor (2SK 2545), LOPTr(BU2508DF), E-W driver (TDA8145), R618 (15k) R711 (3R3 0.5W fusible), C600 (1uf 250V electrolytic) all caused by C620 (0.47uf 250V) S correction cap going open circuit14-09-04
Bush2866NTXDead no st/by ledR102 68k 1W; R109 680k 0.5W o/c in psu14-09-04
Bush2866NTXDead with ticking soundBY228 diode in E/W mod s/c & Q579 BD237 on subpanel next to LOPTx14-09-04
Bush2866NTXE/W faulty - R711 burnt out or overheatingR711 3R3 o/c, TDA8145 & L671 10mH s/c14-09-04
Bush2866NTXInt goes off aft 20 minsLine dr trfmr int o/c - CHS Code ALB778 (same as Matsui 2196)14-09-04
Bush2866NTXInt sound & sw offDry joints pins of connector on sound dec panel14-09-04
Bush2866NTXNo E-W correction after blow upE/W ic & 4R7 safety res14-09-04
Bush2866NTXNo pic - sound okC620 470nF o/c14-09-04
Bush2866NTXNo sigs or tuning supplyR124 15k 1w o/c14-09-04
Bush2866NTXNo sound/pic - noise & OSD onlyNo tuning volts - R124 15k o/c (Front of main pcb)14-09-04
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