Dicas Reparação




Modelo - Chassis


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MarcaModelo
(Chassis)
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SonyTAAX320
MISSING P/N - IC401 This IC is for AEP model. Where is P/N for USA model? Seepage 15, red dotted box. USA: STK4040X AEP: STK4036X -HQ COMMENTS: The part number is 8-749-940-40. The IC will be stockedin RPC on or after January the 10th. We will issue a parts ECN
SonySLHFR70
LOSE BOARD SUPPORT PIN Plastic pin (board support) on SA-10 board above the letterR above the word Drive SOL falls out and floats inside unit. Oneunit had pin jammed under drum motor. -HQ COMMENTS: The purpose of this support pin is to keep the cover fromtouching the SA-10 b
SonySL2005
VIDEO SMEARING This unit had a slight video smear when playing back its ownrecordings. Prerecorded tapes were fine.
SonyCDP111
LEFT CHANNEL OUT The left channel was dead. We found C521 in the sample andhold circuit to be defective. Replacement resolved the problem. Sampleenclosed. -HQ COMMENTS: We have sold quite a few of CDPs and PCMs, but this is thefirst report on a defective S/H capacito
SonyXR40
NO AUDIO OUTPUT No sound on radio or tape, unit has power. Front panel LEDsindicate normal operations. Signal tracing showed audio getting to inputsof IC302 but not coming out, voltage measurements on IC302 were wrong dueto broken ground path (Pins 5 and 9 read 3.7V i
SonyKV1997R
INCORRECT RESISTOR VALUE, R561 SHOULD BE 6.8 KOHMS Schematic (P25) and parts list (P38) both indicate R561resistor (in the collector circuit of Q501, horizontal drive transistor)should be 6.8 ohms. In fact, in the unit this is 6.8 kohms, which agreeswith other models in the P3 chassis series. -HQ COMME
SonySTRVX5
PART NUMBER FOR FRONT PANEL ASSY IS NOT IN S/M Part number for front panel assy is not in S/M but is listedon parts microfische. -HQ COMMENTS: Part number is X-4877-106-1. We will issue a S/B.
SonyXR65
NO AUDIO OUTPUT No output to speakers. Signal was getting to output IC butnot coming out. DC voltages on IC were wrong, so I changed the IC, stillno output. Resistance measurements on IC revealed short from Pin 3 toground, found shorted capacitor C339.
SonyKV1966
DOES NOT TURN ON, REPLACE HDT T501 No high voltage, horizontal oscillator is working but verysmall pulse will reach the base of the horizontal output.
SonySL5000
INTERMITTENT SPEED ON BIII PLAYBACK Tape speed intermittently changes on BIII playback. Unitrecords fine on BIII, BII and playback is good on BII.
SonyTC44
MISSING PART # FOR GEAR (C) Need part number for gear (C). -HQ COMMENTS: The P/N for the gear you requested is 3-550-026-00. Wehave a service bulletin on this (Tape Recorder S/B #168, August 19, 1985).
SonyCBH2
PART NUMBER The part number for this pad assy is not valid. -HQ COMMENTS: Although the part is not stocked, the part numberX-2248-902-0 is valid in NPC. Please order to NPC.
SonyCF570
MISSING PART NUMBER FOR THE STOPPER No part number for the stopper. -HQ COMMENTS: The number is 3-553-039-00 for the STOPPER.
SonySTRAV460
NO AM/FM Customer complained of intermittent AM-FM. Unit had no AM-FMwhen examined.
SonyKV25XBR
NO OPERATION OF FRONT PANEL BUTTON CONTROLS EXCEPT FOR POWER On screen display would always indicate MTS status whenattempting to change other controls. Switch has high resistance, andshows signs or corrosion.


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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