Service manuals, schematics, eproms for electrical technicians
JVC AV-28BS77
Type: 
(RAR)
(RAR)Size
676.0byte
676.0byte
Page
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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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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-28BS-77 AV28BS77 AV 28 BS 77 28BS77 AV-28BS77
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Relevant TV forum topics:
Sziasztok!
Ilyet már látott valaki?
Huzamosabb ideig ment a tv és ilyen kép fogadott.
Szerintetek javithato?
A tv tipusa ismeretlen mert még hátul sincs cimke.
Amugy egy öskövület,mert még aluminium keretes,a hátulja vaslemez.
üdv:atis
Jó napot mindenkinek!
A következő tv-vel lenne problémám: JVC AV28BT7EES A tv villám vágottan került hozzám a zárlatos alkatrészeket kicseréltem a primer illetve secunder oldalon egyaránt, illetve a táp IC-t, és az optocsatolót! Feszültség alá helyezés után a táp szaggatva sípol, és a standby led nem világít! A secunder oldalon az optocsatolón 2V-t mérek, de valamiért nem indul a táp! Szerintetek mi lehet a probléma? Segítségeteket előre is köszönöm!
Üdv: Zvezdovits Balázs
Sziasztok
Tudom, hogy ilyen esetben az az igazi ha az ember szetszedi es azonositja a LED-sort, de sajnos nagyon rosszul allok hellyel, ezert szeretnem ha szetszedeskor mar meglenne a csere LED-sor.
Hatha kozuletek tudja melyik jar bele, vagy van egy kiprobalt forrasa beazonositasra.
A TV tipusa JVC LT-40E710
A panel LK400D3HC34K
Erdekes modon, amiket en talaltam hozza, azok nem elvilagitasosak, nekem pedig az a benyomasom, hogy elvilagitasos a panel.
Az tortent, hogy ugy kerult hozzam, hogy nem volt hatter vilagitas, azonban akarhogy vilagitottam elemlampaval, nem lattam kepet sem rajta.
Szetszedtem, leteszteltem a LED-sorokat ( ket aramkorbe vannak kotve), egyik jo, a masik szakadt (?!)
Teszteles utan visszakotottem es a TV elindult, azonban a bal fele sotet, a jobb fele normalis.
Na most, vagy elvilagitasos es egyik ki van egve, vagy veletlen folytan ugyanazon a bal felen kiegett tobb sorban is a LED.
Elore is koszonom a velemenyeket.
Minden jot,
Janos
Tudom, hogy ilyen esetben az az igazi ha az ember szetszedi es azonositja a LED-sort, de sajnos nagyon rosszul allok hellyel, ezert szeretnem ha szetszedeskor mar meglenne a csere LED-sor.
Hatha kozuletek tudja melyik jar bele, vagy van egy kiprobalt forrasa beazonositasra.
A TV tipusa JVC LT-40E710
A panel LK400D3HC34K
Erdekes modon, amiket en talaltam hozza, azok nem elvilagitasosak, nekem pedig az a benyomasom, hogy elvilagitasos a panel.
Az tortent, hogy ugy kerult hozzam, hogy nem volt hatter vilagitas, azonban akarhogy vilagitottam elemlampaval, nem lattam kepet sem rajta.
Szetszedtem, leteszteltem a LED-sorokat ( ket aramkorbe vannak kotve), egyik jo, a masik szakadt (?!)
Teszteles utan visszakotottem es a TV elindult, azonban a bal fele sotet, a jobb fele normalis.
Na most, vagy elvilagitasos es egyik ki van egve, vagy veletlen folytan ugyanazon a bal felen kiegett tobb sorban is a LED.
Elore is koszonom a velemenyeket.
Minden jot,
Janos
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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