Dicas Reparação




Modelo - Chassis KV27XBR95


Pesquisa: KV27XBR95 Enviar Dica Resolvida
Resultados 22
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(Chassis)
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SonyKV27XBR95S
BLACK LINE IN PICTURE, RE SOLDERED C652 (G BOARD) TV had black lines across picture. Looked like interlaceproblem. Tapping on the G board would temporarily correct the problem.
SonyKV27XBR95S
SCROLLING BAR DISTORTION, RESOLDERED C529 Screen distorted horizontal lines scrolling, can see throughbars. SOLUTION: C529 loose resoldered all ok. HQ COMMENTS: Located off of IC503/pin 2 on the A Board. Couples the Hpulse to the Pin correction circuit.
SonyKV27XBR95S
HORIZONTAL BAR IN PIX, REPLACED C1505 Unti came with horizontal lines(bars) in picture. After warm up,was able to trace problem to defective electrolytic capacitor C1505. -HQ COMMENTS C1505 is located at IC1501/pins 3 and 6. Schematic gridlocation L-11.
SonyKV27XBR95S
VERT.INTERFERENCE IN PICTURE,RE SOLDERED C652,Q605,AND D655 Vertical interference throughout the whole picture. SOLUTION: Re-soldered on the power supply board components C652, Q605,and D655.
SonyKV27XBR95S
PIX SCRAMBLED AFTER WARM UP, REPLACED IC1204 Picture scrambled, had to warm up for 15 minutes. Found defective digital comb filter IC-1204. SOLUTION: Replace defective IC-1204
SonyKV27XBR95S
LOW AUDIO LEVEL FROM VARIABLE AUDIO OUTPUTS WITH EXTERNAL SP When using the variable audio ouputs to drive the SA-VA3(External Audio Speaker system), the speakers would return to standbyunless the volume level was increased beyond the customers preference.Not enough signal for vox control circuit in the SA-VA3 to
SonyKV27XBR95S
NO MENU, REPLACED IC-2301 CHARACTER GENERATOR (E2 BOARD) Remote control does not work properly, power works, volumeadj. does work, channel selector works, display and mute work, but menufunctions will not work.
SonyKV27XBR955
NO ON SCREEN MENUS, REPLACE E2 BOARD, A-1346-060-A There is no program palette.
SonyKV27XBR95S
SCHEMATIC DIAGRAM OF CRT PIN ALLOCATIONS ARE INCORRECT The schematic diagram of the CRT pin allocations, on page114, are incorrectly labeled. The C Board lay out is correct. -HQ COMMENTS: Please refer to the schematic diagram located in theService Manual of the KV-27XBR96S for the correct pin allocation
SonyKV27XBR95S
SERVICE MODE DATA WON'T CHANGE, REPLACED IC205 In service mode, certain adjustments would not change data onscreen. Found stand-by 5V to be noisy.
SonyKV27XBR95S
PART NUMBER FOR BRACKET, REAR COVER MISSING IN SM, SB # 180 The part number for the Bracket, Rear Cabinet, referencenumber 31, shown on page 146 in the SM is missing.
SonyKV27XBR95S
PICTURE WAS TOO WIDE, REPLACED D509, Q502, Q513, AND Q506 The width was way out and I was unable to adjust it. I foundthe -5v line measuring -2.5v so I checked and replaced the D509 Zenorregulator, Q502 and Q513 pin drive transistors. -5v returned to normalhowever the picture was still too wide. I found Q506
SonyKV27XBR95S
PART NUMBER FOR SPEAKER BRACKETS, X-4374-104-1 A dealer claims the unit does not have any brackets to mountthe speakers because they are loose in the cabinet. The service manualdoes not show any brackets for this model. After some discussion, Iarranged for another shop to look at the unit. They cl
SonyKV27XBR95S
SPEAKER BOX COMPLETE PART NUMBER IS WRONG, SEE BELOW Speaker box reference number 93, and 86, are shown in the SMas containing the speaker box and related components. When ordered onlythe speaker box is received. The part number for the complete speakerbox is needed. -HQ COMMENTS: The part number for
SonyKV27XBR95S
INTERMITTENT COLOR DOTS ON SCREEN, REPLACED COMB FILTER After about five minutes of play, the picture showed colordots on the screen. After a while, the picture was unwatchable and thecolor started to bleed off of images.


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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