Service manuals, schematics, eproms for electrical technicians
JVC AV-021T
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Category
TV
EPROM
TV
EPROM
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Looking for similar jvc manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar jvc manual?
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JVC AV-021T AV021T AV 021 021T
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Relevant TV forum topics:
I copied the spi flash and nand from a working board of the same model, but it still won't turn on and the standby LED flashes 13 times. Before reprogramming, the LED also flashed and the TV wouldn't turn on. It also wasn't possible to upload software via USB. I read this via UART:
NO
SPI ID:0xEF4015
SPI type:0x01
Spi Su2:0x02
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:01
RstCode:00000000
last power when ac power: 01
PowerOnEvent: 0x01
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
NO
SPI ID:0xEF4015
SPI type:0x01
Spi Su2:0x02
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:01
RstCode:00000000
last power when ac power: 01
PowerOnEvent: 0x01
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Read back data from SPI....
P:0000
B:1E
sysidx:0CF9
Pwr on:00
PowerOnEvent: 0x24
Üdv mindenkinek ! A cimben emlitett LCD TV tápját szeretném ellenőrizni main nélkül. Az a gond, hogy nem tudom hogyan inditsam be a tápot MAIN nélkül. A táp egyik csatalakozóján a következő jelzések vannak: A_DIM / NC, BL_ON/OFF, PWM_DIM/A_DIM, NC, MAIN POW, LB_PRO, STB_3,3V , GND, BT32V. A stand by megvan az 3,2V, a másik konektoron is van egy STB_5V ott is megvan a 4,9V. Melyik két láb áthidalásával indulhat be a táp, mert amúgy nincs 12V sem 24V.
Sziasztok!
A TV bekapcsolása után feljön néhány pillanatra egy fehér képernyő és TV kikapcsol.2.5 volt körüli feszültség mérhető a színvégfok vezérlésnél mindhárom színnél.Színvégfokon 12 volt megvan tápja 196 volt.Találtam egy tranzisztort (smd),ami a 6.8M jelre hallgat és egyik irányban szakadtnak mértem.Sehol nem találom a megfelelőjét,nem tudom beazonosítani.Interneten sehol nem találok rajzot.A sassy elvileg:JF RMC794.
Minden segítséget köszönök!
János
hello
i need the software in the memory IC /eeprom of a jvc LT-42A85BU LCD TV. anyone can help please?
maybe someone has this board and want to make a copy? the software is damaged in my tv, it's useless now :(
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