FLOW CHART NO.20 RECORDING MODE (CHROMA) TROUBLESHOOTING
Recording is possible but without
colour.
(E-E mode is possible.)
FLOW CHART NO.22 PLAYBACK MODE (LUMINANCE) TROUBLESHOOT
I
NG
1
I
-----lNO
Check between pin (55) of
lC2gl
Is there signal at pin (56) of
ICZOl?
*
and the way up thru to pin (56) of
IC201.
(Check
C-CCD
circuit)
YES
NO
’
lsthere signal at pin
(2)
of
IC201?
~
ChecW
parts around pin (4) of
IC201.
1
IYES
1
1
NO
+
Check between pin
(2)
of
IC201
component at base of
Q2821
and the way up thru to base of
4282.
FLOW CHART NO.21 RECORDING MODE
(CHROMA)
TROUBLESHOOTING
(VC-MH80
ONLY)
Recording is possible but without
colour
in SECAM mode.
(E-E mode and PAL mode are OK)
I
lsthere signal at pin (28) of
1c5301?
YES
Is
5V
applied at pins
(19) and (30) of
IC
NO
YES
Is base signal of Q5303 biased?
YES
+,
v
Check
Q5303,Q590
and its
peripheral circuits.
Check peripheral
circuit of 45301
v
Is pin
(6)
of
IC5301
Check peripheral parts
“Low” level?
of
IC
5301.
NO
Check E-E line.
I
I
Playback is not possible.
I
I
I
I
lsthere
5~at
pin (16) of NO
Check
PCSV
line.
I
I
Replace
lC301.
I
Check between pin (17) of
IC301
and all the way up thru to pin
of
lC2017
(51) of
lC201
(Q201-203,Q206-209).
&YES
and
(38) of
IC201?
Check serial data and clock at pins (14) and (15) of
IC201.
,
JYES
I
I
7
Is there a
signal
aa
NO
of
IC2017
JYES
Check between pin (36) and all the way up thru to pin (35) of
IC201.
(Check Y-CCD circuit)
Is there a signal at pin (27)
of
IC2017
Replace
IC201.
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