Dicas Reparação




Modelo - Chassis KV27HSR10


Pesquisa: KV27HSR10 Enviar Dica Resolvida
Resultados 46
Pedir dica reparação
MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV27HSR10
PICTURE STRETCHED - TOO MUCH VERTICAL SIZE , REPLACED IC-500 Picture looked ok except that channel display is above topedge of picture. When set is put in service mode, adjusting VSIZ lineand VPOS made picture ok. Customer had a second set and these settingswere quite a ways off. For example, V LIN setting is n
SonyKV27HSR10
HORIZONTAL OUTPUT TRANSISTOR SHORTS OUT, REPLACE C-522 Q-503 (horizontal output transistor) shorts out after beingreplaced (instantly). Disconnecting Q-503 collector restores 137V line.With the transistor in circuit the line goes to 0VDC.
SonyKV27HSR10
WIGGLY PICTURE, REPLACED IC-301 ("A" BOARD) Wiggly picture as if horizontal interlacing scan lines wereslightly off time. Horizontal output sine wave looked clean on oscilos-cope, DC sources had no ripple. When scoping (applying color bar genera-tor with chroma removed), IC-301 pins 3 and 5 luma
SonyKV27HSR10
HORIZONTAL CENTERING: SERVICE MANUAL PROCEDURE, SEE SB 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
SonyKV27HSR10
ANODE CONNECTOR MISSING, REPLACE FLYBACK When replacing the A board, the anode wire from the flybackis missing. Is there a part number for it? -HQ COMMENTS: Please disregard the flyback that might come on the re-placement board. Reinstall either a new flyback or the one from the oldboard.
SonyKV27HSR10
NO HORIZONTAL PINCUSHION CORRECTION, CRACK NEAR FBT/PIN 11 Pincushion adjustment inoperative L-501, R-571, Q-505, etc.checked ok. DC voltages on IC-531 ok. Replacement of IC-531 did notchange condition.
SonyKV27HSR10
SET GOES INTO OVP INTERMITTENTLY ON TURN ON, Q0651 OPEN Set goes into OVP intermittently on turn on (every 4 or 5times). When unit works, all voltages are correct.
SonyKV27HSR10
LOUD HIGH PITCHED NOISE FROM SET, GLUED SHIELD ON T-602 Loud, high pitched noise from set and is not in audio circuit.Sounds similar to yoke with singing problem. Before replacing yoke pleaseread.
SonyKV27HSR10
HORIZONTAL RGB LINES IN TOP PORTION OF PIX., 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.
SonyKV27HSR10
PINCUSHION DISTORTION, COLD SOLDER JOINT AT DAMPER CIRCUIT No horizontal pincushion correction occurring. As received,set had overheated and open L-501, open R-571 and shorted Q-505. Afterreplacing these, set would work normally for about 30 seconds. Q-505would short, R-571 would open sometimes L-501 would op
SonyKV27HSR10
"X" BOARD PART NUMBER, 8-752-035-54 People order part number 1-629-624-11 ( X board) when theyreally need part number 8-752-035-54 (IC-251). This generates customercomplaints because 1-629-624-11 is a blank board. since this is not wantthe servicer needs the servicer has to reorder the c
SonyKV27HSR10
DEAD, REPLACED FBT, R-571 AND Q-505 The unit came in with a shorted HDT. A new replacement wasimmediately burnt out.
SonyKV27HSR10
IK BLANKS RGB OUTPUT FROM IC-301, REPLACED CRT There was no picture or characters displayed. Sound was okand the remote appeared to function. We found that there was no RGBoutput from the jungle IC (IC-301). Pin 27 of the jungle (IC-301) was0.V. We suspected the problem to be caused by the IK (ca
SonyKV27HSR10
NO CONTROL OF SOUND VOLUME, REPLACE IC-251 MTS DECODER Unit displayed multiple audio problems. Volume on screendisplay operated normally but, the actual sound level was stuck atapprox. half volume. When the audio level was changed nothing would occuruntil the channels were changed.
SonyKV27HSR10
SINGING YOKE, REPLACED YOKE. SEE SERVICE BULLETIN 114 Replaced singing yoke. -HQ COMMENTS: Please refer to TVP Service Bulletin number 114. NewYoke Part Number is 1-451-275-41.


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.

Verifique se o esquema está disponível na área de downloads