46
VC-A410U
VC-H810U
Picture (luminance) record is impossible (E-E mode is possible).
Although picture record is possible, color does not appear (E-E
mode is possible).
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Is luminance signal (approx. 0.5
Vp-p) input to the pin(19) of IC201?
Is luminance signal (approx. 0.3
Vp-p) input to the pin(42) of IC201?
Is luminance signal (approx. 0.5
Vp-p) input to the pin(26) of IC201?
Is luminance signal (approx. 0.5
Vp-p) input to the pin(39) of IC201?
Is luminance signal (approx. 0.5
Vp-p) input to the pin(23) of IC201?
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Is the luminance signal (approx. 0.5
Vp-p) input and output to the pins(13)
and (14) of IC201, respectively?
Check between the pins(18) and
(19) of IC201. (Check C206.)
Check between the pins(21) and
(42) of IC201. (Check C208.)
Check between the pins(60) and
(46) of IC201. (Check C512.)
Check between the pins(58) and
(35) of IC201. (Check R505, C512.)
Check between the pins(39) and
(26) of IC201. (Check C212.)
Check between the pins(24) and
(23) of IC201. (Check C210.)
Is voltage 5V applied to the CCD section
power terminal pin(36) of IC201?
Is CCD control voltage approx. 5V
applied normally to the pin(37) from
the pin(57) of IC201? Is clock signal
(approx. 7.16 MHz/0.5 Vp-p) for
CCD applied normally to the pin(44)
from the pin(69) of IC201?
Check the pins(13) and (14) of IC201
peripheral circuit. (R201, R202, C203)
SP mode: Is record FM signal (approx. 20 mAp-p) output to the pins(88) and (89) (SP1) and pins(86) and (87) (SP2) of IC201?
EP mode: Is record FM signal (approx. 20 mAp-p) output to the IC201 pins(93) and (94) (EP1) and pins(92) and (91) (EP2) of IC20
1?
Check or replace the cylinder.
Is PRE/REC Vcc 5V applied to the pin(90) of IC201?
Is voltage 5V applied to the chroma
power terminal pin(61) of IC201?
Is chroma signal (approx. 143
mVp-p/Burst) input into the
pin(46) of IC201?
Is chroma signal (approx. 180
mVp-p/Burst) input into the
pin(58) of IC201?
Check the periphery of pin(61) of
IC201 and YC 5V line.
Check whether the pins(71) and
(73) of IC201 oscillate (3.58 MHz)?
Is chroma signal (approx. 180
mVp-p/Burst) output to the
pin(35) of IC201?
FLOW CHART NO.18
FLOW CHART NO.19
