Sharp VC-G200SM, Service Manual

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VC-G20SM/G200SM VC-G201SM/G401SM
YES
YES
YES
YES
YES
YES
NO
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YES
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NO
FLOW CHART NO.19 RECORDING MODE TROUBLESHOOTING
Is there luminance signal (approx.0.5Vp-p)
inputting at pin (19) of IC201?
Is voltage 5V applied to the CCD section
power terminal at pin(36) of IC201?
Check whether the pin(73) and (75) of IC201
oscillate 4.43MHz.
Is there audio signal outputted at
pin(11) of IC201? Check line between pin(60) and pin (46) of
IC201. (C512)
Check line between pin(58) and (35)
of IC201 .
Is there chroma signal inputted at
pin(58) of IC201?
SP mode : Is there record FM signal (approx. 20mVp-p) output at pins (88), (89)(SP1)) and
pins (86), (87) ((SP2)) of IC201?:
LP mode : Is there record FM signal (approx. 20mVp-p) output at pins (93), (94)(LP1)) and
pins (92), (91) ((LP2)) of IC201?:
Is CCD control voltage approx 0V applied
normally to the pin (37) from pin (57) of
IC201? Is the clock signal (approx.
8.86MHz/0.5Vp-p) for the CCD applied
normally to the pin(44)from (69) of IC201?
Check line between pins(24), (23) of IC201
(C210).
Check peripherial circuit of pins(13) and (14)
of IC201. (R201, R202, C203)
Is there luminance signal (approx. 0.5Vp-p),
input and output at pins (13) and (14)
of IC201, respectively?
NO
NO
Check parts around of X502.
Athough picture record is possible, colour does not appear. (E-E mode is possible.)
Is there luminance signal (approx.0.3Vp-p)
inputting at pin (42) of IC201?
YES
Is there luminance signal (approx.0.5Vp-p)
inputting at pin (26) of IC201?
Check line between pins (18) and (19)
of IC201.
Check line between pins (21) and (42)
of IC201. (C208)
Check line between pins (39) and (26)
of IC201. (C212)
Is there luminance signal (approx.0.5Vp-p)
outputting at pin (39) of IC201?
YES
Is there luminance signal (approx.0.5Vp-p)
inputting at pin (23) of IC201?
Is voltage of 5V applied to the chroma
section power terminal at pin(61) of IC201?
Check peripheral circuit pin(61) of IC201 and
PC 5V line.
Is there chroma signal inputted at pin(35) of
IC201?
SP mode : Is there chroma ingredient included signal (approx. 20mVp-p) output at pins (88), (89)
(SP1)) and pins (86), (87) ((SP2)) of IC201?:
LP mode : Is there chroma ingredient included signal (approx. 20mVp-p) output at pins (93), (94)
(EP1)) and pins (92), (91)((EP2)) of IC201?:
Check or replace the cylinder.
YES
YES
Is the supply voltage of 5V(PRE/REC
Vcc) fed to pin (90) of IC201?
NO
Replace the IC201.
Picture (Luminance) record is impossible. (E-E mode is possible.)