Dicas Reparação
Modelo - Chassis BE4
Pesquisa: BE4 Enviar Dica Resolvida
Resultados 59
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | BE4A KVM14M1U | At sw on, only 1 funct could be selected b4 lock up | Replace IC803 EEPROM 24C02 - used blank | ||
| Sony | KV14T1U BE4 | Bright white raster | check conns/cracks around LOPtx | ||
| Sony | BE4A KVM2171U | Luma low, poor sync, field up at bottom & E/W bowing | OK when heated - C627 100uF 10V in the 5 volt rail, high ESR, Off pin 8 of IC603 | ||
| Sony | BE4A KVM2171U | Field collapse | R814 0R47 o/c | ||
| Sony | BE4A KV25T1U | Corrugations and poor EHT stability | LOPTx | ||
| Sony | BE4A Chassis | Frame collapse. Replaced frame output chip, but picture geometry was not OK. The voltage at pin 8 of MC44007P chip measured low. | If picture Geometry after replacing Vertical outp. Chip is not in order, replace also MC44007P. (Replaced also STR-S5706 in case an overvoltage caused the fault) | ||
| Sony | BE4A Chassis | Frame collapse. Replaced frame output chip, but picture geometry was not OK. The voltage at pin 8 of MC44007P chip measured low. | If picture Geometry after replacing Vertical outp. Chip is not in order, replace also MC44007P. (Replaced also STR-S5706 in case an overvoltage caused the fault) | ||
| Sony | BE4A | Field collapse with visible line | STV9379 fop IC & 24v fusible next to loptx | ||
| Sony | BE4A | Dead - st/by LED flashes 4 times (No lop) | No line drive from IC301 MC44007P - chip u/s | ||
| Sony | BE4A | Dead - CP602 on sec psu o/c | Replacement cures fault only temp - CP602 to N75 (2.5A); Add 5v6 zener between pins 1 & 9 IC803, add 5v6 zener between pins 9 & chassis on print side of pcb | ||
| Sony | BE4A | Dead - 6 blinks from led | Overvolts or current indicated - check HT (118v) - use dummy load; C608 10µ, C620 100µ 160v, STRS5706 poss & loptx | ||
| Sony | BE4/4A | Tripping with 6 flashes from LED & rush of EHT | LOPTx - EHT sect faulty | ||
| Sony | BE4 KVM2171U | Dead after half an hour | STRS5706 IC601 | ||
| Sony | BE4 KV21T3U | Int dead | R607 0R56 2 watts had risen in value to nearly 2 ohms | ||
| Sony | BE4 KV21M3U | Field collapse | R814 0R47 in 24v supply o/c - use proper improved Sony type |