Dicas Reparação




Modelo - Chassis


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(Chassis)
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SonySLHF1000
NEED PART NUMBER FOR PWR REGULATOR HOLDER (PG. 216) Need mechanical piece that reference number 162 attaches to(pg. 216 of service manual). -HQ COMMENTS: Part number is 3-712-738-01, but is an unstocked part.Tokyo is shipping some pieces, and I will send you one at that time.
SonySLHFR70
SHUTS DOWN Unit will shut down in special effects and sometimes in PLAY(intermittent). Pinch roller will spill tape because the reel assemblywill not turn. I have come across 5 machines with this problem in thelast six months. The rotor becomes warped.
SonyCCDV5
INTERMITTENT SHUTDOWN Intermittent shutdown and at times no start. Found output ofsupply reel sensor varying in amplitude. Cause - supply reel sensor wasnot fastened to chassis and was too close to reel - not allowing receivediode to sense proper light. Varying amplitude w
SonyKV2080R
SHUTDOWN, OPEN R507 When the unit was first turned on, unit would shutdown.
SonyWMF100
GROUNDING OF RADIO CONNECTION BOARD Unit works only when cassette door is opened. Shuts down whenclosed. Radio connection board has trace worn and exposed causing it toground in the act of opening and closing cassette lid.
SonySTRVX550
RELAY CHATTER Units power relay would chatter for some time and then wouldfunction properly. Problem may not show again for a few days.
SonyCCDV9
NO AUTO FOCUS No auto focus. Manual focus slow and hunts.
SonyCDXR88
NO TUNER OPERATION No AM or FM. (No scan stop. Manual tune gives no backgroundstatic, or audio at all). Found no output from Q17 its base was 0.57VDC.
SonyCCDM8SP
VF JACK PART NUMBER No P/N listed in manual. -HQ COMMENTS: P/N is 1-562-183-00.
SonyKV2092R
BOTTOM HALF OF PICTURE DISTORTED, C1504 Top half of pix was fine, bottom half was stretched and dis-torted. Scopes of pin 3 or 6 of IC1501 shows RF riding on B+. FoundC1504 had changed value - replaced problem cured.
SonyFD42A
NO PIX, REPLACED Q802, D802, IC601 AND Q602 1. No picture. 2. No high voltage. 3. Bad keystone.1. Weak drive signal on Q801 base.2. Open Q802.3. No drive of pin 5 (IC601) open Q602.
SonyCDP701ES
HIGH FREQUENCY WHISTLE IN ONE CHANNEL High freq. whistle in one channel. Found cold solder joint onLPF ground tab. This problem could occur on LPF401 effecting other side.
SonyCDP203
WRONG PART The part number for the main board is incorrect.
SonySLHF1000
ONE WEAK OR NO VIDEO HEAD OUTPUT Original problem was one video head tip broken. Replaced withnew disk assy then had symptom of dirty or clogged video heads unable toclear, changed head disk assy. Same results, (BIs worked fine) changedentire drum assy. Same results, changed head swi
SonyKPR4110
NO PICTURE AND NO SOUND, RESOLDERED THE FLYBACK No picture and no sound.


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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