FLOW CHART NO.20: RECORDING MODE TROUBLESHOOTING
NO
YES
YES
NO
YES
YES
NO
YES
YES
YES
YES
NO
NO
NO
YES
NO
YES
NO
YES
YES
NO
NO
Is there luminance signal (approx. 0.5
Vp-p) input to the pin(19) of IC201?
Is there luminance signal (approx. 0.3
Vp-p) input to the pin(42) of IC201?
Is there luminance signal (approx. 0.5
Vp-p) input to the pin(26) of IC201?
Is there luminance signal (approx. 0.5
Vp-p) input to the pin(23) of IC201?
Is there luminance signal (approx. 0.5
Vp-p) input and output in the pins (13)
and (14) of IC201, respectively?
SP mode:
Is there record FM signal (approx. 20 mVp-p) output at pins
(88), (89) <<SP1>> and pins (86), (87) <<SP2>> of IC201?
LP(PAL)/EP(PAL, NTSC) mode:
Is there record FM signal (approx. 20 mVp-p) output at pins
(93), (94) <<EP1>> and pins (92), (91) <<EP2>> of IC201?
SP mode:
Is there chroma ingredient included signal (approx. 20 mVp-p) output
at pins (88), (89) <<SP1>> and pins (86), (87) <<SP2>> of IC201?
LP(PAL)/EP(PAL, NTSC) mode:
Is there chroma ingredient included signal (approx. 20 mVp-p) output
at pins (93), (94) <<SP1>> and pins (92), (91) <<SP2>> of IC201?
Check or replace the cylinder.
Check peripheral circuit of pins
(13) and (14) of IC201.
(Check R201, R202, C203)
Check line between pins (58) and
(35) of IC201 (Check C515).
For PAL/MESECAM mode.
Check whether the pins (73) and (75) of IC201 oscillate 4.43MHz.
For NTSC mode.
Check whether the pins (73) and (71) of IC201 oscillate 3.58MHz.
For PAL/MESECAM mode.
Check parts arround of X501.
For NTSC mode.
Check parts arround of X502.
Check line between pins (60) and
(46) of IC201. (Check C512.)
Check line between pins (21) and
(42) of IC201. (Check C208.)
Check line between pins (39) and
(26) of IC201. (Check C212.)
Is there luminance signal (approx. 0.5
Vp-p) output from the pin(39) of IC201?
Is voltage 5V applied to the CCD section
power terminal at 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.
8.86 MHz<PAL mode> or
7.16 MHz<NTSC mode>/0.5 Vp-p)
for CCD applied normally to the pin
(44) from the pin(69) of IC201?
Check peripheral circuit, pin(61) of
IC201 and Y/C 5V line.
Check line between pins (18) and
(19) of IC201.
Check line between pins (24) and
(23) of IC201. (Check C210.)
YES
YES
NO
YES
Picture (luminance) record is impossible (E-E mode is possible).
Although picture record is possible, colour does not appear in PAL or NTSC mode
(E-E mode is possible).
Is voltage of 5V applied to the chroma
power terminal at pin(61) of IC201?
Is the supply voltage of 5V (PRE/REV
Vcc) fed to pin(90) of IC201?
Replace IC201
Is there chroma signal (approx.
156 mVp-p <PAL mode> or
298 mVp-p <NTSC mode>/Burst)
input to the pin(46) of IC201?
Is there chroma signal
(approx. 197 mVp-p <PAL mode> or
375 mVp-p <NTSC mode>/Burst)
output from the pin(35) of IC201?
Is there chroma signal (approx.
197 mVp-p <PAL mode> or
375 mVp-p <NTSC mode>/Burst)
input to the pin(58) of IC201?
NO
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