Dicas Reparação




Modelo - Chassis CCDV8


Pesquisa: CCDV8 Enviar Dica Resolvida
Resultados 186
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(Chassis)
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SonyCCDV8AFU
EXCESSIVE NOISE FROM DRUM BEARING Noisy bearing on drum assembly causing excessive noisein PB and REC of video information.
SonyCCDV8
GREEN SPOT IN PICTURE Small green spot in picture - visable under wide range oflight levels.
SonyCCDV8AFU
NO PLAYBACK/NO RECORD Was unable to get unit to record, playback or erase. Checkedheads with SL-5151 head checker. All checked OK. Checked record andplayback amps, worked fine.
SonyCCDV8AFU
ALIGNMENT METHOD INCORRECT On page 205 of S/M, adjustments in AF section 1-34-3 areincorrect. Test point for 5.5V adj. should be collector of Q022, notemitter. VCF adj. is unclear. D001 cathode must be shorted to 1.7V line.Also, in offset adj., it specifies shorting 1.7V line t
SonyCCDV8
INTERMITTENT VIDEO (SNOWY) ON SELF RECORD ONLY Looks like clogged heads on self record only. PB anypre-recorded tape is good. During record mode intermittent IC101 on VI-6board causes video to snow out.
SonyCCDV8AFU
NO CAPSTAN PHASE LOCK Noise bar at 5 sec rate. Observed RF envelope expand to maxand diminish. By substituting ATF servo with power supply could stabilizepicture. All signals at ATF servo/IC106 appeared OK, but replacementsolved problem. Hint: wait for RF envelope to dimi
SonyCCDV8AFU
VIDEO WAS GOOD BUT EVERYTHING WAS PINK Video was good but everything was pink. Traced problem toME-1 board. Good signal TP703. No signal TP704. Signal OK Pin 48 butDC voltage 4.8V. Trace to leaky chip cap C711.
SonyCCDV8AFU
NO POWER No power, all voltages normal out of DR901, VDD normal toIC601. Found no clock at IC601.
SonyCCDV8AFU
TAPE HESITATES Intermittent tape hesitation during tape run record or PB.Momentary tape stoppage at random intervals progressing to emergency stopalthough normal immediately after reset, continue operation finallyobtaining complete failure of tape movement in all modes
SonyCCDV8AFU
WON'T RECORD Won't record, unable to enter any mode except eject, drum runfollowed by emergency stop. Found no RF SW pulse Pin 24 IC601/MC-4 board.No output Pin 7 IC501 on MC-4 board, incorrect DC level Pin 6 IC501.
SonyCCDV8AFU
NO FUNCTION No function. Power up normal. Found no motor power.
SonyCCDV8AFU
FLICKER Flickers during playback and record, intermittent shift tofour hour mode. Found high frequency signal and noise present on 5Vlines, variable with stress applied to DC-DC converter.
SonyCCDV8AFU
NO Y INFORMATION Picture camera looks like chroma with no video. Bluish redimages slightly smeared.
SonyCCDV8AFU
NO RECORDING Unit playback was fine. Would not record anything at all.Snow was all that was on tape. All necessary signals were present,video, sync, record correct. Would erase previous information.
SonyCCDV8AFU
INTERMITTENT BREAK-UP IN PICTURE/SPEED CHANGE SP/LP Record OK. During playback any tape including self-recordedpicture would break-up with white streaks and speed would change back andforth between SP/LP modes. Troubleshooted ATF circuit to no avail.Changed UI-6 board with known good board, same thing.


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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