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Modelo - Chassis KPR41EXR95


Pesquisa: KPR41EXR95 Enviar Dica Resolvida
Resultados 18
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(Chassis)
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SonyKPR41EXR95
G BOARD AND A BOARD HAS +135 PRINTED ON BOARDSWRONG Connector G2 (G board) and connector A2 (A Board) have +135printed on them. This is incorrect the true voltage is +115v DC. The-135 volt line is correct.
SonyKPR41EXR95
NO VERTICAL, REPLACE IC903(5V REGULATOR) Unit has no vertical deflection. 18V fuses blow after few second.
SonyKPR41EXR95
NO PICTURE, REPLACED E1 BOARD Set has a no picture and on screen display, but sound is ok.Deflection and HV voltage circuits functioning properly. No video at R, Gand B outputs at connector E1-24 pins 3, 4, 5. Y and C entering E1 boardfrom A board pins 46 and 44 at connector E1-00
SonyKPR41EXR95
NO PICTURE NO FUNCTIONS, LEAKY DIODE D211 Set displayed symptoms of no picture, would not accept anycommands. Checked U board, no video coming from tuner or video inputs.No data at pin 20 of IC1002(audio video signal selector).I found data bus throughout set loaded down to approx .4 volts.
SonyKPR41EXR95
HV SHUTDOWN, LEAKY CAP C818 Unit would go into HV shutdown when turned on. Duringmonitoring discovered HV portect detector IC804 pin 1 was latching highwhen unit was turned on and monitored B+ boost at cathode of diode D801,found climbing over 160 volts. Checking HV regulation de
SonyKPR41EXR95
HIGH PITCH SQUEAL, REMOUNTED/RESOLDERED L805 ON N BOARD High pitch squeal from the unit and very intermittent.
SonyKPR41EXR95
NO PICTURE HIGH VOLTAGE OK, REPLACED C327 ON THE E1 BOARD No picture, no display, sound OK.
SonyKPR41EXR95
GREEN CRT LEAKING, REPLACED CRT GREEN CRT LEAKED AND SHORTED OUT THE CRT SOCKET. BOTHWERE REPLACED AND SET OPERATED NORMAL.DEALER IS SHIPPING CRT DIRECT TO PITTSBURGH IAW TECHNICAL FLASH89R1. -HQ COMMENTS: Thanks for supplying the defective sample.
SonyKPR41EXR95
H1/H2 BOARDS NEEDED FOR SERVICE, T-998-552-61, SEE SB 202 When chassis is removed the H1 and H2 boards remain in thechassis. To remove these boards require a lot of dissassembly because thewire harness needs to be removed. Also on this set, the screen needs tobe removed to remove the H1 board. -HQ Comments:
SonyKPR41EXR95
GREEN CRT LEAKING, REPLACED THE GREEN CRT Green CRT Leaked and shorted out the CRT Socket.
SonyKPR41EXR95
FAILED CRT, REPLACED RED AND GREEN CRT'S ASC worked on power supply. Unit would go into immediate shutdown. Found two arcing CRT's SD249R and SD249G punctured glass on neck ofCRT's. 8-736-633-05 07MK(R), 8-736-631-05 07MK(G). I am sendingdefective CRT's to Pittsburg TV manufacturing for eva
SonyKPR41EXR95
CRT IS SILICON TYPE, IT CAN NOT BE REPLACED WITH MECHANICALW Can Silicon type CRT be replaced with a Mechanical typetube?. -HQ COMMENTS: The Silicon sealed tubes were used in this model. Theycan not be replaced with the Mechanical type tubes. Please check thelabel inside the unit, on the chassis, for the corr
SonyKPR41EXR95
CONNECTOR A6, G6 MISSING, SEE SB # 145 Servicer found connector A6-G6 missing. Is this a circuitupgrade. -HQ COMMENTS: Please see Service Bulletin 145. This upgrade wasalready done so it did not appear in the SB.
SonyKPR41EXR95
PICTURE BLANKING ON LEFT SIDE OF THE SCREEN, S/B TVP0145 At turn on the picture blanks out the left side of the screen about the size of the Channel Index area. -HQ COMMENTS: See Service Bulletin number TVP0145. On the A boardremove completely the wire harness A-6. Connect a 3.5 inch long wire fromResistor
SonyKPR41EXR95
NO RECEPTION ON CHANNELS 2 THROUGH 6., REPLACED TUNNER Channels 2 through 6 will not function, all other stations areOK. Tuner pins voltages measured normal.


Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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