Dicas Reparação JVC
Modelo - Chassis
Pesquisa: JVC Enviar Dica Resolvida
Resultados 403
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| JVC | AV21TS1EK | No sound Nicam or FM - if Txt selected header appears for 1 sec then reverts to pic | R619 sm not soldered properly | ||
| JVC | AV21TS1EK | Lack of height aft 10 mins | TDA8351 & check FR552 0R82 2w, FR553 TDA8351 is at fault. Check the supplies lines at this IC. Pin 6 should be 47.3V and Pin 3 should be 14.9V. If this is incorrect check resistors FR552 0R82 2W part No QRH027K-R82M. and resistor FR553 6R8 1/2W part No QRH127J-6R8M. These resistors are at pins 8 and 7 of the LOPTX. | ||
| JVC | AV21SXLEK | High pitched buzz - sound/pic OK | L521 line lin coil vibrating - could also be LOPTx | ||
| JVC | AV21SX1EK | Field - partial collapse - int | Dry joint C961 2200µ 25v ; 8v smoother | ||
| JVC | AV21SX1 | No sound | Only 3.5v supply to Dolby pcb - should be 5v - IC952 LM7805 reg | ||
| JVC | AV21S2EK | "NICAM" RANDOMLY APPEARS ON SCREEN | REPLACE SF012 (BLUE) ON NICAM PCB | ||
| JVC | AV21H2EK | Random "Nicam" displayed on screen | SF012 filter typre 32.9 on Nicam pcb - upgrade to type 33 Pt no CE42606701 | ||
| JVC | AV21H2EK | No sigs, OSD, Txt - ok on scart & R/C | R527 6R8 1w fusible o/c - near LOPTx | ||
| JVC | AV21H2EK | No sigs or graphics - ok via scart | No i/p to 5v reg IC522 due to R527 6R8 o/c - replace both | ||
| JVC | AV21H1EK JX | Various int faults | Check IC522 reg on large heatsink for dry joints | ||
| JVC | AV21H1EK JX | No signals or osd | IC522 12v reg dry joints | ||
| JVC | AV21H1EK JX | Blows Q502 LOPTr at sw on | D502 BY228 E-W mod diode s/c | ||
| JVC | AV21F2EK | No sigs or OSD | No 5v supply - 6R8 2w reg feed res o/c caused by excess current from Txt pcb due to IC002 SDA5243 faulty | ||
| JVC | AV21F1EK JX | REPEATED FAILURE IC3101 | CHANGE C105 TO 4.7uF LINK -VE TO IC3101 HSINK | ||
| JVC | AV21F1EK JX | PICTURE LOOKS TO HAVE HUM BAR ON IT | L2001 IN CHOPPER BASE FEED OC Pt-No CELC005-2R5 |