Dicas Reparação
Modelo - Chassis 11AK19
Pesquisa: 11AK19 Enviar Dica Resolvida
Resultados 335
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Bush | WS7671 11AK19P4 11AK19 | Dead - off with a bang | IC802 MC44604P, IC801 CQY80NG CNX82 OR SEME TYPE OPT403 OPTOCOUPLER, Q802 2SK2545 MTP6N60E, R822 22K 3W, D807 RL207 BA159, D826 BA159, D827 BA159, D824 MR852 BYW98/200V | ||
| Bush | WS6673 11AK19P5 11AK19 | Dead - D823 blown (not shown on cct) | When replaced still faulty, IC802 MC44604P chopper chip u/s - also check FET chopper Tr | ||
| Bush | WS6673 11AK19P5 11AK19 | Dead - check for dry joints | Also replaced LOPTr which then produced 1" line scan - D622 BY228 leaky & R629 2R7 o/c. There's a mod for psu (11DYC19P) to fit heatsink for diode that burns up | ||
| Bush | WS6671 11AK19P4 11AK19 | Width excessive | Q603 (9NQ20T or BUK444-200 or MTP6N60E) | ||
| Bush | WS6671 11AK19P4 11AK19 | Narrow pic | R629(2R7 1/3 watt fusible) plus DJ on C630. | ||
| Bush | WS6671 11AK19P4 11AK19 | Narrow pic | Dry joint/ o/c C630 560n; R629 27R? Safety o/c, L604 reads 3R (correct), Q603 PHF9NQ20T replaced - used BUK444 200A in lieu | ||
| Bush | WS6671 11AK19 11AK19 | Lack of width & R629 (2.7ohm) in EW circuit o/c | C630 (560nf) - read OK | ||
| Bush | WS6671 11AK19 11AK19 | Dead - no LED display | Replace Q802 BUZ91A ( MTP6N60 ) & D823 ( BA157) | ||
| Bush | WS6671 11AK19 11AK19 | 3 RGB test lines only showing | FOP chip TDA8351 & check for dry joints | ||
| Bush | 6690D 11AK19 11AK19 | No pic except for line across top of pic - sound ok | rest of screen blank unless A1 advanced - RGB O/P IC | ||
| Bush | 2876NTX 11AK19E3 11AK19 | Blank raster with 2 blue, 2 green, then 2 red, thin horizontal lines, approx. one third down screen | R 704, 100R o/c. Supply to pin 6 of frame I/C TDA 8351 caused by bad joint on L602 | ||
| Bush | 2872NTX 11AK19ES 11AK19 | Dead - LED flickers low green | No 5v supply as R867 0R33 o/c | ||
| Bush | 2872NTX 11AK19-E3 11AK19 | Dead | R870n 0R22 in psu o/c due to C833 arcing against chopper Tr heatsink | ||
| Bush | 2872NTX 11AK19 11AK19 | Tuning varies | R505 tracking to pcb | ||
| Bush | 2872NTX 11AK19 11AK19 | Int width increase with E-W fault | Dry joint L602 |