Dicas Reparação




Modelo - Chassis


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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySLHF300
VIDEO NOISE Mistracking occurred. 60Hz noise could be seen at output(Pin 1, IC801) of CTL Amp.
SonyTCFX311
MISSING PART OF FRONT PLATE ASSEMBLY Meter received is missing aluminum trim on front plate. Oldis cemented on and not removable. -HQ COMMENTS: The part # ordered is for TC-FX311 and does not includeplate. Part # for plate is 3-318-833-01. Please refer to S/B #149 fornew part number.
SonyITA600
NO ICM RECORD When OUT button was pressed, unit would beep error withflashing LED.
SonyCFD5
NO REVERSE PLAY 1) No reverse play. 2) Head plate continuously cycles inpause.
SonyTCM5000EV
UNIT WOULD RECORD WITH EXTERNAL MIC, NOT INTERNAL Unit would record with external mic, but not internal. Tested internal mic, OK. Found open switch inside J901.
SonyCDP30
FOCUS OK. ACHIEVED BUT TOC NOT READ FOK achieved, runup occurred, but TOC not read. Eye patternsomewhat weak 600-700mV offset 500mv from 0VDC. TE test points looked to+5V rail. Signal @ RF amp pins 9 and 10 (EFB and FFB) close to normal.
SonySLHFR70
HERRINGBONE PATTERN WHEN USING TV TUNER After about one hour the picture would intermittently developea herringbone pattern which varied in intensity when using the Televisiontuner. Turning off the VCR would eliminate the problem. The picture didnot go snowy.
SonyCDXR7
INTERMITTENT SKIPPING The unit intermittently skipped. We found that when the unithad a disc loaded but was not running that there was a sound coming fromthe disc motor. The motor was not running but a static sound was beingclearly emitted which you could vary by manually c
SonyCDXR7
INT DISPLAY, DISC OPERATION The unit intermittently would loose the display and the discwould not work. I do not know the operation of the tuner as we did nothave it, but surmize that this also would have been affected. We foundthe problem to be in the 5V bus at the feed through
SonyCCDV8
SERVICE MANUAL CORRECTION (RB1 AND RB2 GAIN ADJ) On page 191 in S/M, Adjustment 1-18 (RB1 and RB2 Gain Adj)should be corrected as follows:
SonySL2500
SEVERE FLAGGING IN PB MODE When entering FF or RW, unit would go into stop. When in playpix would flag severely. I found the reel brakes were not releasing.Q332 was shorted, keeping brake solenoid in brake position.
SonySL2400
REEL BEARING NOT AVAILABLE Part comes up on computer see S/M or'bulletin. -HQ COMMENTS: 3-646-185-00 (Bearing and Spacer) are repaced with3-646-572-00 (Bearing) and 3-646-573-00 (Spacer). S/B #197 will beupdated to include this model.
SonySL2401
REEL BEARING NOT AVAILABLE Part comes up on computer (no longer available, see S/M orbulletin). -HQ COMMENTS: 3-646-185-00 (Bearing and Spacer) are replaced with3-646-572-00 (Bearing) and 3-646-573-00 (Spacer). S/B #197 will beupdated to include this model.
SonySL2405
REEL BEARING NOT AVAILABLE Part comes up on computer (no longer available, see S/M orbulletin). -HQ COMMENTS: 3-646-185-00 (Bearing and Spacer) are replaced with3-646-572-00 (Bearing) and 3-646-573-00 (Spacer). S/B #197 will beupdated to include this model.
SonySL2406
REEL BEARING NOT AVAILABLE Part comes up on computer (no longer available, see S/M orbulletin). -HQ COMMENTS: 3-646-185-00 (Bearing and Spacer) are replaced with3-646-572-00 (Bearing) and 3-646-573-00 (Spacer). S/B #197 will beupdated to include this model.


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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