Dicas Reparação




Modelo - Chassis KV32XBR10


Pesquisa: KV32XBR10 Enviar Dica Resolvida
Resultados 53
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SonyKV32XBR10
HIGH PITCHED OSCILLATING SOUND, REPLACED R-527 High pitched oscillating sound from the set and poor interlacei.e., looks like horizontal line pairing. Waveform at pin 1, A-84 connec-tor was 25Vpp, horizontal amp waveform at pin 11, T-500 FBT was 225Vpphorizontal. Inspection of R-527 revealed it was
SonyKV32XBR10
SHUT DOWN, REPLACED R-608 ("F" BOARD) Unit would go into shutdown immediately at power on. Foundthat Q-603 was turning on causing the unit to go into B+ Over VoltageProtection. The B+ was only a slight bit high. The emitter of Q-603measured approximately 1 volt higher than the base.
SonyKV32XBR10
HORIZONTAL CENTERING, USES TAP SEE SERVICE BULLETIN # 102 The Horizontal Centering Adjustment on page 30 of the ServiceManual omits the fact that a Horizontal Centering tap exists as shown onpage 36, the F board. If the remote commander adjustment is made withthe tap in the wrong place, some sets will exhibit
SonyKV32XBR10
ANODE CONNECTOR MISSING, 1-540-006-32 When replacing the A board, the Anode wire from the flyback ismissing. Is there a part number for it? -HQ COMMENTS: Please order part number 1-540-006-32 which is the AnodeCable. Future boards will come with the cable.
SonyKV32XBR10
NO POWER, RESOLDERED Q-602 ("F" BOARD) Set won't come on.
SonyKV32XBR10
NO PICTURE OR DISPLAY; SOUND OK, REMOVED SOLDER BRIDGE IC500 No picture or display sound ok. High voltage ok. C boardvoltages are ok. Inputs to IC-301 is ok but no RGB outputs. IC-301 YSpin 15 and IK pin 25 both are normal. Defeating IK pin per FPR did notgive picture. Found OVDC at ABL pin 26 of IC-301 and
SonyKV32XBR10
"F" BOARD CIRCUIT CORRECTION, SEE SERVICE BULLETIN 66R1 There is a discrepancy in the F board schematic diagram.When the board is ordered, it comes with a softstart circuit consisting ofQ-604, R-610 and C-613. This circuit is not in the service manual. -HQ COMMENTS: There was a production change when the XB
SonyKV32XBR10
IC-101 DOES NOT MATCH PART NUMBER IN MANUAL, TVP SB # 92 Above part number does not match with the part called for inthe service manual.
SonyKV32XBR10
NO PICTURE, REPLACED C-511 Found B+ line incorrect. Traced to C-511 on A board.
SonyKV32XBR10
INTERMITTENT PICTURE, RESOLDERED C-335 OFF OF IC-301/PIN 44 Picture would intermittently loose sync. By taping on circuitboard found problem. Found cold solder joint on C-335 off of IC-301/pin44.
SonyKV32XBR10
LOUD HIGH PITCHED NOISE FROM SET, ADD SILICONE TO T-602 Loud, high pitched noise from set, not from the audio circuit.Sounds similar to yoke with singing problem. Before replacing yoke pleaseread.
SonyKV32XBR10
HORIZONTAL RGB LINES ON TOP OF PICTURE, REPLACED R-517 Unit looks normal but, displays red, green and blue horizontallines on the top portion of the picture. Normally, adjusting the REFfunction in the service mode will shift the lines out of the picture area.However, in this case the shift was not enough.
SonyKV32XBR10
NO PICTURE SLEEP LIGHT ON, REPLACED C-500 Set has high voltage. Sleep light is on, but set has nopicture. Found .7Vpp on pin 31 of IC-301 (should be 2 volts). Foundshorted C-500. -HQ COMMENTS: When C-500 (on pin 1 of IC-500) shorts, Vertical Drivesignal will be lost. This will cause loss of
SonyKV32XBR10
BAD SOLDER JOINTS AROUND T-501 HDT, RESOLDERED T-501 Bad solder joint around T-501 HDT and unit had a bad H-outD-1941.
SonyKV32XBR10
ONLY 27 OUT OF 32 CHANNEL CAPTION MEMORY AVAIL., SEE BELOW Operating instructions (pg. 40, attached) say up to 32channels may be labeled. I can only get a maximum of 27. When one isdeleted, making 26, another cannot be added in its place. The amount ofcharacters (1-4) stored per station seems to have no affec


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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