Dicas Reparação




Modelo - Chassis KV28WS2U


Pesquisa: KV28WS2U Enviar Dica Resolvida
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Sony KV28WS2U
No sound, speakers pop out if volume is raised from zero. Audio output from Dolby A1 board at +5v dc.Lightning damage to this set and connected VCR. Centre/surround amplifier IC shorted blowing IC protector to its negative rail. Both amplifier ICs replaced as a precaution. No damage to Dolby A1 board
Sony KV28WS2U
OSD volume bar present continuously. No functions availableFront panel tactile switches leaky. Replace same
SonyKV28WS2U BE3D
St/by LED flashes twiceM24C32 sm EEPROM replaced (caused by crt flashover?)
SonyKV28WS2U BE3D
Service mode enteringfrom st/by press OSD/5/volume+/tv; TT____ will appear top right. Entering TT38 sets the TV as a 28 inch, TT24 sets TV as PAL I, TT79 for widescreen. MENU gives submenu choices eg geometry; TT00 exits & stores
SonyBE-3D KV28WS2U
vol goes up or down on its own, channels wipe out of memory, unusual characters on LHSint lockup of IC3, replace with new software type (IC3 TMS27PC0200-15 software 15FMBW706 or later, part number 875945310)
SonyBE-3D KV28WS2U
no soundD613 FMN-G12S o/c (871905838)
SonyBE-3D KV28WS2U
no pic, sound Okno line drive, R870 1R 1W o/c
SonyBE-3D KV28WS2U
int no remoteIR receiver IC900 894179051
SonyBE-3D KV28WS2U
buzzing on sound, IC260 gets hotresolder earth pin on plug CN303
SonyBE3D KV28WS2U
St/by only LED flashes error code 2LOPTx can be cause, confirmed by measuring volts coll Q606 in prot cct. If it rises to 11v LOPTx faulty (should be 0v) - then enter serv mode & disable prot (see other entry).
SonyBE3D KV28WS2U
St/by only LED flashes error code 2Instead of replacing the EEPROM try the following - Whilst LED is flashing enter serv mode (St/by, I, 5, vol+ & TV). This disables prot & set comes on with "TT--" . Press "0, 8" on R/C which will clear error buffer.
SonyBE3D KV28WS2U
LED successively flashes twiceM24C32-MW6T EPROM IC2 - 8 leg sm device pt no 875952494
SonyBE3D KV28WS2U
LED flashes twice aft LOPTx replacement to cure dead setCheck EEPROM 24C32 in IF sound module by replacement. Enter service mode & at TT promt enter country code 24 (UK system) - prevents need for setting each chan band when tuning
SonyBE3D KV28WS2U
EEPROM corruptionCaused by flashover of red gun in crt - crt replaced under warranty (if lucky)
SonyBE3D KV28WS2U
Dead at sw on - will produce a click from relay after a period of time. When G2 advanced, line collapse noticedCheck for dry joints around scan coils plug, check R870M for o/c 1R, 1w


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