Service manuals, schematics, eproms for electrical technicians
JVC AV-32D305-R CH GE4 SUPP PARTS SCH
Type: 
(RAR)
(RAR)Size
2.5 MB
2.5 MB
Page
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Category
TV
SERVICE MANUAL
TV
SERVICE MANUAL
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JVC CH GE-4 AV32D305R GE4 SUPP AV 32 305 GE 32D305
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Relevant TV forum topics:
Sziasztok!
Ezen a készüléken semmi képtartalom nincs, csak csíkok vízszintes/függőleges irányban. T-con táp (rt6923) forr, ha lekötöm a kijelzőt akkor viszont nem. Létezik, hogy zárlatos a kijelző??? Nekem még ilyet egy sem produkált, tapasztaltabbak véleményére lennek kíváncsi.
Köszönettel: Kiss Z.
Ezen a készüléken semmi képtartalom nincs, csak csíkok vízszintes/függőleges irányban. T-con táp (rt6923) forr, ha lekötöm a kijelzőt akkor viszont nem. Létezik, hogy zárlatos a kijelző??? Nekem még ilyet egy sem produkált, tapasztaltabbak véleményére lennek kíváncsi.
Köszönettel: Kiss Z.
Egy olyn problemam van,hogy a tv nem kapcsol be,gyors kattogo hangot ad es piros led sem vilagit
Üdv az Uraknak! A fent említett cucc még "igazi" angol gép. Alig öt éves, a nem túl gazdag gazdija szó szerint megkoplalta, hogy legyen egy jó tv-je. Ráadásul szimpatikus is, különben "elhajtanám". Szóval ha jó, akkor penge képe van. Viszont ha bemelegszik, tele lesz a kép digitális zajjal. Hét -nyolc, kilenc?- függőleges sávban vízszintes csíkok tömege, no meg némi kék kocka. Azt nem értem mindössze, hogy eddig hidegen volt rossz, oszt ha melegedett javult, most meg hidegen volt jó és pár perc után gárgyult meg. A hiba erősen képtartalom függő, homogén felületeken hibátlan, aztán jön valaki sötét háttérrel színes ruhában és kész horror lesz a kép. Van e tipp, esetleg képcsőhibás rom jó digilappal?
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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