Dicas Reparação
Modelo - Chassis CHASSIS
Pesquisa: CHASSIS Enviar Dica Resolvida
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| NEI | E5 CHASSIS | Squealing noise tho' works ok - T651 hot | D653 s/c - BYT52M | ||
| NEI | E5 CHASSIS | Servicing the NEI E5 CHASSIS | See TV mag July 1999 | ||
| NEI | E5 CHASSIS | PSU low O/P - appears to be tripping | D652 BA157, C657 47µ R664 10R o/c. T651 BUZ90AF low gain - if volts across C665 is 260-270v replace it | ||
| NEI | E5 CHASSIS | Pic bowed or lack of width | C753 680nF 400v | ||
| NEI | E5 CHASSIS | No raster - no/low line drive | Check D701 1N4148 clamp diode, D705 BA157 leaky, line dr trfmr pri winding hi res (should be 4R3) ot IC101 jungle chip | ||
| NEI | E5 CHASSIS | No raster - volts across T702 400v instead of 1kv | C709 's' correction cap o/c, if so C710 2µ 350v, R709 10k fusible may have failed | ||
| NEI | E5 CHASSIS | LOPTr goes s/c at sw on | D705 BA157 s/c or crt internal s/c at final anode, C124 2n2 o/c (pin 39 IC101) | ||
| NEI | E5 CHASSIS | Line freq incorrect | C122 4n7 leaky - pin 40 IC101 | ||
| NEI | E5 CHASSIS | HT low - max of 140v | P651 HT preset 2k5 fallen in value | ||
| NEI | E5 CHASSIS | Dead - no o/p from psu | Check for R654 820k o/c, C665 o/c, IC651 faulty | ||
| NEI | E5 CHASSIS | Dead - Chopper tr IC651 & control chip IC651 s/c | D653 BA159 s/c use BYT52M as replacement & check tracks for damage | ||
| NEI | E5 CHASSIS | Chirping at low brightness with line jitter | R655 330k & 1M across it hi res | ||
| Mitsubishi | CT25MSTX E14 CHASSIS | Dead - st/by led lights briefly at sw on | dry joints on IC951. Drys were also found on regulators IC952, IC954 & IC955. | ||
| Metz | CHASSIS 680G/681G | Starts with black screen, if G2 increased and brightness and contrast are set to max, picture faintly visible. | Change TR901 in decoder module. Leak was detected with a VOM. | ||
| Metz | CHASSIS 680G/681G | Gradual loss of contrast and focus from bottom of screen to top, when increasing brightness or in shiny passages. | Change or clean and readjust trimmer pot R857. |