Dicas Reparação
Modelo - Chassis 2501
Pesquisa: 2501 Enviar Dica Resolvida
Resultados 72
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| GRUNDIG | MFW70-2501/8 BEKO C7-C8 | Queima TSH | Para este situação, há várias causas possíveis: L503 co sinais de sobreaquecimento, R516 4R7/1W aberta. Os condensadores C623 680uF/16V e o C522 1uF/160V também devem ser verificados. | Mudar T504 2SD2499 (=BU2520DX) L503 e R516 4R71W; Mudar C623 e C522 | Electrohd |
| GRUNDIG | MF55-2501/5 TOP+ 16.1 | NÃO LIGA | FUSIVEL OF | CAUSA PTC (090Q KSN81), EM CURTO | joaquim cunha |
| Orion | TV2501B | Dead set | Found the IRD shorted | ||
| Orion | TV2501B | Dead set or will start up and shut down | IRD shorted or leaky | ||
| Nikkai | TLG2501 | E-W dist | R154 o/c, L103 defective, also check TDA8145 EW cotrol chip & RV105 100k pot | ||
| Sony | KX2501A | IBM TO 34 PIN CONNECTOR ON MONITOR/ NEED TO USE TMX-701 | Customer wants to connect their IBM to the 34 pin connector. -HQ COMMENTS: This monitor can not be connected to an IBM CGA computer. Using the TMX-701 or PC-701 connector cable. | ||
| Sony | KX2501 | IBM TO 34 PIN CONNECTOR ON MONITOR/ CAN NOT BE CONNECTED | Customer wants to connect their IBM to the 34 pin connector. -HQ COMMENTS: This monitor can not be connected to an IBM CGA computer. Only the KX2501A or KX1901A can be connected using the TMX701 or PC701connector cable. | ||
| Sony | KX2501 | JAIL BARS IN PICTURE, REPLACED C-667 | Jail bars vertically in picture. Traced ripple to +12 voltline on board PCB with oscilloscope then traced it to an open C-667 the15 volt filter for the 12 volt supply from the switched mode supply. | ||
| Sony | KX2501A | RETRACE LINES ON PICTURE, REPLACED R-704 | Retrace lines in picture. | ||
| Sony | KX2501A | FOLDOVER AT TOP (VERTICAL), REPLACED C518 | There is a foldover at top of screen (vertical). | ||
| Sony | KX2501 | DIM PICTURE, REPLACED R1597 (CHANGED VALUE) | Dim picture. Picture control inoperable. | ||
| Sony | KX2501 | POOR TO NO OPERATION AT LOW VOLTAGES | Unit started whistling and misbehaving (width problems,pin-cushion, etc.) if voltage was 120V or lower (ok at 121V). | ||
| Sony | KX2501 | HORIZONTAL LINE ACROSS SCREEN, REPLACED R1544 | Horizontal line across the screen (loss of vertical scan). | ||
| Sony | KX2501 | SHUTDOWN/BLANKING PROBLEM, REPLACED HVR BLOCK | Set shut down intermittly. | ||
| Sony | KX2501 | VOLUME CONTROL CHANGES PICTURE LEVEL AND R02 BURNT, D1205 | Resistor R02 on U-1 board burnt. No video and volume controlwill affect picture level. Checking from chassis ground to power supply12V ground the voltage was -11V. Disconnected K1 and voltage remained.Further checking found D1205 shorted and Q1440 bad |