Make | Model | Problem | Solution | Date |
| | | |
Found: 2309
|
Akai | CT2867 SP71L | St/by only | C093 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 problem | 14-09-04 |
B & O | 2500 LX2802 | Int reverts to st/by briefly with blank raster on return | Tr6 - use BC338-40 as replacement - checks ok out of cct | 14-09-04 |
B & O | L2500 | Servicing the L2500 | Picture on cover & layout. | 14-09-04 |
B & O | L2500 L | Stuck in standby. | BU508 s/c. | 14-09-04 |
B & O | L2502 | No sound | IC101 pin 7 (5.9v) = 0v C111 100µ 25v s/c | 14-09-04 |
B & O | L2502 (3866) | Dead & squealing | Resolder 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 & O | L2502 3866 | Int 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 & O | L2505 | st/by only after short squeal at sw on | lop tr TR11 S2000A3 s/c and resolder dry joints esp at C34 6n8 | 14-09-04 |
B & O | L4500 | Poor pic with blue cast | 10k B vid o/p Res on CRT base o/c | 14-09-04 |
B & O | LS5000 | St/by only with LED dimming when chan butt pressed | Check connections in metal can under crt neck, esp wickman F1& micro, xtal etc - see Sept 91 TV Mag for article | 14-09-04 |
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B & O | LS5000 | Txt fault - blue blocks darken on lh side | C56 4µ7 25v & check for drys around IC2 on txt pcb | 14-09-04 |
B & O | LX2500 37XX | NO STBY LED SET STUCK IN STBY | C14 470uF 16v OC | 14-09-04 |
B & O | LX2502 | Field distorted | Replaced C44, C45, C46, C49, C26, and C54 plus FOP chip TDA2170 that orig had dry joints | 14-09-04 |
B & O | LX2800 | Blank raster & no sound - OSD OK | C18 on decoder board dry joint | 14-09-04 |
B & O | LX2800 37XX | Sync - poor sync. | 26IC5 ( TDA1940 ) | 14-09-04 |
B & O | LX5500 3903 | St/by only after initially being hard to turn on | C20 & 25 47µ 50v | 14-09-04 |
B & O | LZ5000 3766 | Won't work on batt - ok on mains | Aux sw behind mains sw contacts needed resetting - make sure battery supply is adequate | 14-09-04 |
B & O | Teletext 33XX | Display - no OSG - teletext on 100. | Chip 8IC1 ( 4015 ) | 14-09-04 |
B&O | L2500 | psu shutdown | line dr tr 4TR15 BC328-25 o/c b-c | 14-09-04 |
B&O | LX2802 | no raster field collapse | TDA2170 u/s nla TDA8172 in lieu c/w adaptor + 4R78 3k3, 4R85 0R56 | 14-09-04 |
Binatone | 19496 Cavalier | Sync - loss of sync. | D302. | 14-09-04 |
Blaupunkt | IL32 | Vert collapse | C721 100µ 25v leaky - then height faulty - C733 1000µ 25v leaky | 14-09-04 |
Blaupunkt | MILANO IL32 FM | DEAD RELAY CLICKS | RELAY OC ON ONE POLE | 14-09-04 |
BPL | BPL9402 | Dead | Q432 BU508DF s/c - check C435 4700pF 2kv for o/c & R552 91k for o/c & drive wfm from IC701 | 14-09-04 |
BPL | KLR9402-01 | St/by only | No line dr supply - R793 4K7 o/c | 14-09-04 |
BPL | LMR940201 | Dead - psu faulty | Replace 2SC3807 in base BU508 Power Tr & check green cap here for dry joints | 14-09-04 |
BPL | LMR940201 | No sound - IC blown | Q511 2SA933 faulty - replace with 2SA1015 | 14-09-04 |
BPL | LMR9403 | Field speed off | C232 3µ3 63v | 14-09-04 |
BPL | LMR9403 | Lines at bottom | C455 2µ2 50v (pin 2 FOP chip) | 14-09-04 |
BPL | LMR9403 | No sound | Q511 2SA1015Y & replace R520/521 120k 1/2w, C562 22µ 250v, R562 3R9 1/2w & IC7171 AN5265 | 14-09-04 |