FLOW CHART NO.21: PLAYBACK MODE TROUBLESHOOTING
NO NO
YES
YES
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
YES
NO
YES
NO
YES YES
NO
NO
NO
YES
Is there FM signal (approx. 0.4 Vp-p)
input to the pin(78) of IC201?
Is there luminance signal (approx.
0.25 Vp-p) input and output in the
pins (13), (14) and (17) of IC201?
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 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?
NO
Is there video signal (approx. 2.0
Vp-p) output to the pin(52) of IC201?
Replace IC201.
Check line between pins (79) and
(78) of IC201.
Is there FM signal (approx. 0.4 Vp-p)
output from the pin(79) of IC201?
Is the supply V-H.SW.P. signal fed
to the pin(81) of IC201?
Check V-H.SW.P. line.
Check the peripheral circuit of pins
(13), (14) and (17) of IC201.
Check line between the pins (18)
and (19) of IC201. (Check C206.)
Check line between the pins (21)
and (42) of IC201. (Check C208.)
Check line between the 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. 8.86MHz<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 line between the pins (24) and (23) of IC201. (Check C210.)
Is there chroma signal output from
the pin(55) of IC201?
Replace IC201.
Check line between the pins (55)
and (54) of IC201. (Check C514.)
Is there chroma signal (approx.
300 mVp-p<PAL mode> or
286 mVp-p<NTSC mode>/Burst)
input to the pin(54) 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?
Check line between the pins (58) and
(35) of IC201. (Check C515.)
Is there chroma signal (approx.
197 mVp-p<PAL mode> or
375 mVp-p<NTSC mode>/Burst)
input to the pin(35) of IC201?
For PAL/MESECAM mode.
Check whether the pins (73) and
(75) of IC201 oscillate 4.43 MHz.
For NTSC mode.
Check whether the pins (73) and
(71) of IC201 oscillate 3.58 MHz..
Check line between the pins (60)
and (46) of IC201. (Check C512.)
Check peripheral circuit of pin(61)
of IC201 and Y/C 5V line.
Is voltage 5V applied to the chroma
power terminal at pin(61) of IC201?
Is there chroma signal (approx.
156 mVp-p<PAL mode> or
298 mVp-p<NTSC mode>/Burst)
input in the pin(46) of IC201?
YES
Playback picture does not appear (E-E mode is possible). Although picture playback is possible, colour does not appear in PAL or NTSC
mode (E-E mode is possible).
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