Dicas Reparação PANASONIC
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Panasonic | Alpha 3 | NO COLOUR PIN 16 TDA 3505 LOW ( NOT 3v ) | C644 0.01uF SC | ||
| Panasonic | Alpha 3 | No colour | Ref osc not working; 0µ01 ceramic cap connected to pin 14 IC601 decoder chip leaky | ||
| Panasonic | Alpha 3 | No Colour | IC303 TDA3505 vid control chip pin 16 was low instead of 3v - C644 0µ01 ceramic decoupler leaky | ||
| Panasonic | Alpha 3 | No col when using AV connector | Check front AV2 source sw is not set to "S" posn | ||
| Panasonic | Alpha 3 | Loss of Video & Audio sigs | Loose panel H due to customer pushing in Scart leads | ||
| Panasonic | Alpha 3 | INT LOSS OF TUNING | DRY JOINTS ON PRESCALER IC IN TUNER | ||
| Panasonic | Alpha 3 | Int loss of sound & pic | Dry joints prescaler chip inside tuner | ||
| Panasonic | Alpha 3 | INT DIAGONAL BLACK/WHITE STRIPES | D329 ZENER Pt No MA4068 | ||
| Panasonic | Alpha 3 | GREEN AND RED "GLITCHES" ACROSS SCREEN , TEXT DISP | C649 ( 120pf ) PIN 3 IC302 PIC TRANSIENT | ||
| Panasonic | Alpha 3 | Goes off aft 3 hours - flashes & shuts down | Check heatsink clip on IC891 | ||
| Panasonic | Alpha 3 | Goes dark with no sound when heated | C1251 10nF was leaky in micro reset cct | ||
| Panasonic | Alpha 3 | Field collapse | C400 10n 50v connected to pin 2 TDA2579A tbase chip | ||
| Panasonic | Alpha 3 | Fault Notes: Panasonic Alpha 3 Chassis | See TV Mag July 1994 | ||
| Panasonic | Alpha 3 | E-W bowing with no control effect | Check TDA8145 IC701 & R708 & L701 also 0µ01 50v decoupling cap to pin 1 IC701 | ||
| Panasonic | Alpha 3 | Dead. | R555 HT feed o/c. |