Service manuals, schematics, eproms for electrical technicians
JVC CHASSIS ML AV-32X37 AV-32X35 AV-32H35 SM
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312.1 KB
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30
Category
TV
SERVICE MANUAL
TV
SERVICE MANUAL
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- Also known:
JVC CHASSIS ML AV-32X-37 AV32X37 AV32X35 AV32H35 AV 32 37 35 32X37 32X35 32H35 AV-32X37 AV-32X35 AV-32H35
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Relevant TV forum topics:
Sziasztok!
Gyakorló szakiktól kérdezem: a fenti TV-nek másfél-két óra használat után elmegy a hangja. Kikapcs/bekapcs és minden OK. Egy darabig. Egy esetét úgy 3-4 kikapcsolással meg lehet úszni. Típus hiba lehet vagy sem? Ezen információ birtokában döntöm el, hogy mikor fogom szétszedni :-)
NagyZé
Sziasztok !
Fenti TV-n csak készenlét van !
alaplap : T.MT5310.S97A
flash IC : 25Q64
Ha a tanyán is megtalálható 29" TV-hez való flash dump-ot beleírom, akkor elindul a TV , de nincs kép csak a háttérvilágítás jön meg...
Az interneten csak rossz dump van fenn...
Előre is köszönöm : LCDdoki
Sziasztok!
Segítséget kérek, feladtam, nincs több ötletem! A jelenség: kép alsó felét felgyűri, 5-7 perc után a kép kisimul,normál geometriájú lesz. A tv TDA 1771-el megy, (cserélve), az összes elkó cserélve-( ESR-rel mérve kicsit gyengék, de nem jelentősen)-a képeltérítő fokban. Változás semmi. Nanók kicserélve-semmi. Táp nem változik -27V-, nem brummos, szűrő elkó cserélve. Ellenállások ha csak el nem b....tam nincsenek felnyúlva. Fűrészfog szép, nem változik. Itt a vége- meg az ötleteimnek is! Ha van valakinek, kérem ossza meg velem! Előre is köszi!
JVC AV-21FMG4G Chassis SCW-1362A CRT TV blinks continuously after three failing power on attempts.
According to the customer, the upper portion of the screen started shrinking with horizontal lines, then ended with a single thin horizontal line.
This suspects the vertical drive section to be problematic. No vertical output though vertical in put is OK. After conducting an ESR check for capacitors in the vertical section, C428 (100uF 35V), connecting VCC1 with Pump-up pin # 3 of the IC, it measured 1200pF. It was replaced but still no vertical output. So changed the vertical IC401 (TDA78040), and the output appeared, but still blinks after three failing start-ups. I, m suspecting the corrupt EEPROM data.
CPU: TDA11010H / N1D00
EEPROM: 24C16A
Any one with EEPROM dump for this model or any help please?
According to the customer, the upper portion of the screen started shrinking with horizontal lines, then ended with a single thin horizontal line.
This suspects the vertical drive section to be problematic. No vertical output though vertical in put is OK. After conducting an ESR check for capacitors in the vertical section, C428 (100uF 35V), connecting VCC1 with Pump-up pin # 3 of the IC, it measured 1200pF. It was replaced but still no vertical output. So changed the vertical IC401 (TDA78040), and the output appeared, but still blinks after three failing start-ups. I, m suspecting the corrupt EEPROM data.
CPU: TDA11010H / N1D00
EEPROM: 24C16A
Any one with EEPROM dump for this model or any help please?
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