Dicas Reparação




Modelo - Chassis


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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySLHF300
TUNER/LINE INPUT SELECTOR MALFUNCTION Line/tuner (S113) seemed to work backwards. No channel dis-play when set to tuner but would record from line with no problem. Whenset to line weak tuner and seemingly good channel display.
SonyFD40A
TWO VERSIONS OF THE MOUNTED D BOARD, SEE SUPPLEMENT NO.2 There are apparently two versions of the mounted D board beingdistributed under part # A-3015-311-A. They are different particularlyaround Q303. Lead wires are also mounted to the boards in differentspots. Number printed on boards, 1-613-769-11, same
SonyCPD1201
NO RED, GREEN OR BLUE OUTPUT ON SCREEN No blue output on screen. Found Q703 shorted base to emitter.Also Q325 shorted emitter to collector.
SonyKV25XBR
NO PICTURE, SOUND. SCREEN DISPLAY INDICATED PICTURE Screen was black. Remote inoperative, front panel controlsinoperative except for power on/off. Only thing that screen displayedpicture.
SonyKV20XBR
UNIT STAYED IN RGB MODE AND SLEEP Unit stayed in RGB mode and sleep. Remote inoperative, frontpanel controls inoperative except for power on/off. Screen black.
SonyCCDV8
P/N REQUEST-EVF BRACKET Do we have a part # for the metal bracket on the bottom of theelectronic view finder? -HQ COMMENTS: The EVF lower cabinet assy comes with the part you want.Order part number X-3686-662-1 as per S/B #232.
SonyKV2602
CABLE TV SCRAMBLING Approx. 20 customers in St. Louis with KV-2602encing dark picture with color smear and predominant red chroma on cableTV. They were scrambling all channels. The system used is mfg by Jerroldand is similar if not the same as the equipment outlined in th
SonyBMC110
PART NUMBER Need part number of item slightly above to the left of No. 153on page 94 of S/M. -HQ COMMENTS: The part number is 3-681-511-00. This correction alongwith other part number additions can be found in Supplement 1.
SonyTCK501R
PLAY WON'T ENGAGE When play is depressed in either direction the head chassisdoes not move, subsequently the pinch rollers will not engage. FoundR562 improperly installed. One end of the resistor was not insertedinto the circuit board, therefore was not soldered to the
SonyKV2665
NO VIDEO/AUDIO, 9V REG Q-204 No video and audio.
SonyFD2A
MISSING PART # FOR DIAL POINTER IN S/M Missing part # for dial pointer in S/M. -HQ COMMENTS: The dial pointer is a part of the front cabinet.
SonyITA600
INCOMING MESSAGE TAPE DOES NOT STOP Customers claim incoming message tape will not stop aftercaller hangs up. One unit, the ITA-600 is used in Phx area, the ITA-500came from Colorado Springs. Using B & K 1050 phone analyzer I could notduplicate problem in either machine. -HQ COMMENTS: T
SonyCDP70
AUDIO SOUND DISTORTED FOLLOWED BY SHUT-DOWN Unit would accept disc, do focus search and apparently readTOC. When play mode entered unit would start to play with distortedaudio, then it would stop in a few sec. Viewing eye pattern on scoperevealed distortion.
SonyKX1901
ALTERNATELY DARK AND LIGHT HORIZONTAL BANDS APPEARS Alternately dark and light horizontal bands appeared in top1/6 of picture after warm-up.
SonyPSLX510
INTERMITTENT ERRATIC SPEED After warm-up, speed (33RPM) would intermittently becomeslightly erratic. The locked light would turn off. Customer had unit ontop of his amp. which supplied additional heat. We found Q103 to beslightly thermal which upset bias of IC102/P6 servo amp.


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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