47
DV-NC55U/C/M
FLOW CHART NO.15
NO
YES
YES
NO
YES
YES
NO
YES
YES
YES
NO
NO
YES
YES
NO
YES
NO
YES
NO
YES
YES
NO
NO
NO
Is luminance signal (approx. 0.5
Vp-p) input to the pin(19) of IC1201?
Is luminance signal (approx. 0.3
Vp-p) input to the pin(42) of IC1201?
Is luminance signal (approx. 0.5
Vp-p) input to the pin(26) of IC1201?
Is luminance signal (approx. 0.5
Vp-p) input to the pin(23) of IC1201?
Is the luminance signal (approx. 0.5
Vp-p) input and output to the pins(13)
and (14) of IC1201, respectively?
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 IC1201?
EP mode: Is record FM signal (approx. 20 mAp-p) output to the pins(93) and (94) (EP1) and pins(92) and (91) (EP2) of IC1201?
Check or replace the cylinder.
Check the pins(13) and (14) of
IC1201 peripheral circuit.
(R1201, R1202, C1203)
Is PRE/REC Vcc 5V applied to the pin(90) of IC1201?
Is chroma signal (approx. 180 mVp-p
/Burst) output to the pin(35) of
IC1201?
Check between the pins(58) and
(35) of IC1201. (Check R1505,
C1515.)
Check whether the pins(71) and
(73) of IC1201 oscillate (3.58 MHz)?
Check between the pins(60) and
(46) of IC1201. (Check C1512.)
Is chroma signal (approx. 143 mVp-p
/Burst) input into the pin(46) of
IC1201?
Is chroma signal (approx. 180 mVp-p
/Burst) input into the pin(58) of
IC1201?
Check between the pins(21) and
(42) of IC1201. (Check C1208.)
Check between the pins(39) and
(26) of IC1201. (Check C1212.)
Is luminance signal (approx. 0.5
Vp-p) input to the pin(39) of IC1201?
Is voltage 5V applied to the CCD section
power terminal pin(36) of IC1201?
Is CCD control voltage approx. 5V
applied normally to the pin(37)
from the pin(57) of IC1201?
Is clock signal (approx. 7.16 MHz/
0.5 Vp-p) for CCD applied normally
to the pin(44) from the pin(69) of
IC1201?
Is voltage 5V applied to the chroma
power terminal pin(61) of IC1201?
Check the periphery of pin(61) of
IC1201 and YC 5V line.
Check between the pins(18) and
(19) of IC1201. (Check C1206.)
Check between the pins(24) and
(23) of IC1201. (Check C1210.)
Picture (luminance) record is impossible (E-E mode is possible).
Although picture record is possible, color does not appear (E-E mode is possible).
Содержание DV-NC55C
Страница 75: ...75 DV NC55U C M M E M O ...
Страница 82: ...88 DV NC55U C M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 13 3 VTR DISPLAY CIRCUIT SCHEMATIC DIAGRAM ...
Страница 91: ...103 DV NC55U C M 10 11 12 13 14 15 16 17 18 19 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE A ...
Страница 93: ...105 DV NC55U C M 10 11 12 13 14 15 16 17 18 19 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE B ...
Страница 98: ...110 DV NC55U C M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 POWER PWB Component Side SIDE A Wiring Side SIDE A ...
Страница 100: ...112 DV NC55U C M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 INTERFACE PWB Component Side SIDE A Wiring Side SIDE A ...
Страница 106: ...122 DV NC55U C M A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 M E M O ...
Страница 127: ...Ref No Part No Description Code Ref No Part No Description Code 143 DV NC55U C M ...
