Service manuals, schematics, eproms for electrical technicians
JVC AV-21L31ME 25L31ME
Type: 
(RAR)
(RAR)Size
4.0 MB
4.0 MB
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Category
TV
SERVICE MANUAL
TV
SERVICE MANUAL
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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 AV21L31ME 25L31ME AV 21 31 ME 25 21L31ME AV-21L31ME
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Relevant TV forum topics:
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?
Sziasztok! Gyors menetnek tűnt,de...Sortranya hibával került hozzám a tv. Már az is gyanús volt hogy konkrét okát nem találtam miért ment tönkre. Visszafutás kondi ok,sortápfesz ok(135V),meghajtójel megvan. Izzóval indítva ok,ezután jöhet az éles próba:elsőre indul,tökéletes kép,hang,látszólag minden jó. Félórai üzem után vége. Új tranyó halott,a hűtőborda foghatatlanul forró. Szóval nagyon melegszik,ez öli meg. Tudom meg kéne erőltetnem kicsit az agyamat,de ha valaki átesett már ilyenen, megköszönném a segítségét!
Udvozlet kollegak
Egy JVC LT_20C70BU nevu gepen dolgozom,nincs hangja.A vegfok ok a MSP-t egyelore nem cserelnem ki,adatbusz van,berezeg az oszcilatorja,ok-nek nez ki.Tudnatok segiteni egy dump_al?
Koszonom elore:Tamas Laci
Sziasztok!
Egy mentést keresnék a fenti készülékhez Vestel 11ak30a14 van nekem is,de az nem teljesen jó( AV-t nem jeleníti meg) a szokásos vestel távok nem jók hozzá, com geniust com4040-re állítva működteti. Processzorán VESTEL/JVC30A34
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