Dicas Reparação
Modelo - Chassis V28
Pesquisa: V28 Enviar Dica Resolvida
Resultados 112
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | AE5 KV28FX65U | Pic disappears into fine mosaic aft 30 secs - sound & Txt still ok | Dry joints sm chip IC2311 on board B1 (100Hz proc) | ||
| Sony | AE5 KV28FX60U | No line sync on pic, osd or menu | Check the "H-pulse main" on the pin B22 of the J-board . If not present, your fault may be on the J-board (it is the one where the SCART sockets are). Try re-soldering SMD IC8300 (or IC8301 on some boards). | ||
| Sony | AE5 KV28FX60U | Bright G pic with fb lines | looks like CRT. Q5315 2SC25510 Part No 872920498 | ||
| Sharp | SV287XH | St/by only at sw on with burning smell | R518 2R2 smokes due to fop chip IC501 LA7831 faulty - caused by C521 & 522 100µ 35v o/c | ||
| Sharp | SV287XH | Blank raster/no sound - OSD present (RF & Scart) | Switching [video and audio] is performed by IC401 [M51321P] a three gang three way device. pin 15 of the IC works on a tristate level. With the IC supply being 12V: 0 - 2.5V Input from BNC; 5 - 7V Input from scart ;9 - 12V Input from tuner. Diode D419 [DX00458M] which links to the wiper of the AGC preset was leaky, limiting the voltage on pin 15 to 7V and thus preventing tuner mode selection. Replace D419 with an IN4148 | ||
| Schneider | STV2802T | Dead - mains fuse shattered - bridge rect s/c | Replacing faulty items caused a repeat of the fault - caused by faulty mains smoothing cap | ||
| Schneider | STV2802T | Dead - mains fuse blown | Mains bridge rect s/c (looks under rated) | ||
| Schneider | STV2802 TV9.1 | Service mode entering | Press red & blue buttons on RC together. Press prog down & vol up on TV together within 5 secs. Select items using up/down buttons. Parameters use red button. Adjust value using volume +/-. Press OK button to store value. Leave service mode by pressing TV button. | ||
| Schneider | STV2801T TV9.1 | Dead with LOPTr S2055AF s/c | lopt HR8320 (18.44UKP +vat From Seme) - reqs heatsink to be cut to fit in | ||
| Schneider | CTV2802 | Arcing LOPTx | Loptx replaced pt no HR8320 - will fit with some slight mod to clips etc | ||
| Pioneer | SV2803 | Field foldover at bottom | C2582 680µ 35v | ||
| Pioneer | SV2803 | BOTTOM FOLDOVER | 680mfd , 35v FIELD SCAN COUPLING CAP | ||
| Pioneer | SV2801 | Sound int | Check spkr pl/skts & AM/FM sound module earthing for dries & QS46 17.7292MHz Xtal | ||
| Pioneer | SV2801 | No contrast - RGBs high at 165v | U4606 vid proc chip faulty - U4647 does | ||
| Philips | 21PV288/05 | Dead - 4A fuse o/c, D6313/4 bridge rect s/c | R3344 2R 5w o/c due to C2328 470pf 2kv arcing behind chopper tr heatsink |