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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: 2309
AkaiCT2867 SP71LSt/by onlyC093 or another cap in parallelmarked R093 removing these 2 surface mounted capacitors and cleaning the glue under that had fixed them to the pcb cured the problem14-09-04
B & O2500 LX2802Int reverts to st/by briefly with blank raster on returnTr6 - use BC338-40 as replacement - checks ok out of cct14-09-04

B & OL2500Servicing the L2500Picture on cover & layout.14-09-04
B & OL2500 LStuck in standby.BU508 s/c.14-09-04
B & OL2502No soundIC101 pin 7 (5.9v) = 0v C111 100µ 25v s/c14-09-04
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 & OL2505st/by only after short squeal at sw onlop tr TR11 S2000A3 s/c and resolder dry joints esp at C34 6n814-09-04
B & OL4500Poor pic with blue cast10k B vid o/p Res on CRT base o/c14-09-04
B & OLS5000St/by only with LED dimming when chan butt pressedCheck connections in metal can under crt neck, esp wickman F1& micro, xtal etc - see Sept 91 TV Mag for article14-09-04
B & OLS5000Txt fault - blue blocks darken on lh sideC56 4µ7 25v & check for drys around IC2 on txt pcb14-09-04
B & OLX2500 37XXNO STBY LED SET STUCK IN STBYC14 470uF 16v OC14-09-04
B & OLX2502Field distortedReplaced C44, C45, C46, C49, C26, and C54 plus FOP chip TDA2170 that orig had dry joints14-09-04
B & OLX2800Blank raster & no sound - OSD OKC18 on decoder board dry joint14-09-04
B & OLX2800 37XXSync - poor sync.26IC5 ( TDA1940 )14-09-04
B & OLX5500 3903St/by only after initially being hard to turn onC20 & 25 47µ 50v 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
B & OTeletext 33XXDisplay - no OSG - teletext on 100.Chip 8IC1 ( 4015 )14-09-04
B&OL2500psu shutdownline dr tr 4TR15 BC328-25 o/c b-c14-09-04
B&OLX2802no raster field collapseTDA2170 u/s nla TDA8172 in lieu c/w adaptor + 4R78 3k3, 4R85 0R5614-09-04
Binatone19496 CavalierSync - loss of sync.D302.14-09-04
BlaupunktIL32Vert collapseC721 100µ 25v leaky - then height faulty - C733 1000µ 25v leaky14-09-04

BlaupunktMILANO IL32 FMDEAD RELAY CLICKSRELAY OC ON ONE POLE14-09-04
BPLBPL9402DeadQ432 BU508DF s/c - check C435 4700pF 2kv for o/c & R552 91k for o/c & drive wfm from IC70114-09-04
BPLKLR9402-01St/by onlyNo line dr supply - R793 4K7 o/c 14-09-04
BPLLMR940201Dead - psu faultyReplace 2SC3807 in base BU508 Power Tr & check green cap here for dry joints14-09-04
BPLLMR940201No sound - IC blownQ511 2SA933 faulty - replace with 2SA101514-09-04
BPLLMR9403Field speed offC232 3µ3 63v14-09-04
BPLLMR9403Lines at bottomC455 2µ2 50v (pin 2 FOP chip)14-09-04
BPLLMR9403No soundQ511 2SA1015Y & replace R520/521 120k 1/2w, C562 22µ 250v, R562 3R9 1/2w & IC7171 AN526514-09-04
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