VC-V50S
VC-V80T
VC-V91T
43
Picture (Luminance) record is impossible (E-E mode is possible).
Although picture record is possible, color does not appear in P
AL or NTSC mode (E-E mode is possible).
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Is luminance signal (approx. 0.5Vp-p)
input to the pin(19) of IC201?
Is luminance signal (approx. 0.3Vp-p)
input to the pin(42) of IC201?
Is luminance signal (approx. 0.5Vp-p)
input to the pin(26) of IC201?
Is luminance signal (approx. 0.5Vp-p)
input to the pin(39) of IC201?
Is luminance signal (approx. 0.5Vp-p)
input to the pin(23) of IC201?
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Is luminance signal (approx. 0.5Vp-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 pins(58) and (35) of
IC201. (Check RJ18, C515.)
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.
0V<PAL/MESECAM mode>,
5.0V<NTSC mode>
applied normally to the pin(37) from the
pin(57) of IC201?
Is clock signal
(approx.
8.86 MHz<PAL mode>,
7.16 MHz<NTSC mode>
/0.5Vp-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. (Check R201, R202,
C203)
SP mode: Is there record FM signal (approx. 20mVp-p) output to the pins(88), (89) (SP1) and pins(86), (87) (SP2) of IC201?
Check or replace the cylinder.
Is PRE/REC Vcc 5V applied to pin(90) of IC201?
Is voltage 5V applied to the chroma section
power terminal at pin(61) of IC201?
Is chroma signal (approx. 143mVp-p/
burst) input into the pin(46) of IC201?
Is chroma signal (approx. 180mVp-p/
burst) input in the pin(58) of IC201?
Check peripheral of pin(61) of IC201
and PC 5V line.
<For NTSC mode.>
Check whether the pins(73) and (71) of
IC201 oscillate 3.58MHz?
<For PAL/MESECAM mode.>
Check whether the pins(73) and (75) of
IC201 oscillate 4.43MHz?
Is chroma signal (approx. 180mVp-p/
burst) output to the pin(35) of IC201?
FLOW CHART NO.18 RECORDING MODE TROUBLESHOOTING
YES
<For NTSC mode.>
Check peripheral parts of X501.
<For PAL/MESECAM mode.>
Check peripheral parts of X502.
Содержание VC-V50S
Страница 46: ...VC V50S VC V80T VC V91T 8 BLOCK DIAGRAM SYSTEM SERVO BLOCK DIAGRAM 46 47 ...
Страница 48: ...VC V50S VC V80T VC V91T 50 POWER CIRCUIT BLOCK DIAGRAM ...
Страница 58: ...VC V50S VC V80T VC V91T 66 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 LED PWB VC V91T OPERATION PWB ...
Страница 73: ...Ref No Part No Description Code Ref No Part No Description Code VC V50S VC V80T VC V91T 81 ...
