Toshiba D-R410KU Service Manual page 21

Toshiba d-r410ku dvd video recorder service manual
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FLOW CHART NO.18
VIDEO E-E does not appear normally.
Are the video signals inputted to each pin of
IC1301?
IC1301
8PIN
VIDEO-IN 1 (REAR)
IC1301
13PIN
Y-IN 1 (REAR)
IC1301
2PIN
C-IN 1 (REAR)
IC1301
10PIN
VIDEO-IN 2 (FRONT)
IC1301
15PIN
Y-IN 2 (FRONT)
IC1301
4PIN
C-IN 2 (FRONT)
Are the video signals outputted to each pin of
IC1301?
IC1301
19PIN
VIDEO-Y/CVBS-IN
IC1301
21PIN
VIDEO-C-IN
Are the video signals outputted to each pin of
CN1101?
CN1101
18PIN
VIDEO-Y/CVBS-IN
CN1101
20PIN
VIDEO-C-IN
Are the video signals outputted to each pin of
CN1101?
CN1101
5PIN
VIDEO-Y(I/P)
CN1101
3PIN
VIDEO-Pr/Cr
CN1101
1PIN
VIDEO-Pb/Cb
CN1101
7PIN
VIDEO-C
Are the video signals shown above inputted into
each pin of IC1401?
IC1401
3PIN
VIDEO-Y(I/P)
IC1401
8PIN
VIDEO-Pr/Cr
IC1401
6PIN
VIDEO-Pb/Cb
IC1401
1PIN
VIDEO-C
Are the video signals outputted to each pin of
IC1401?
IC1401
13PIN
VIDEO-Y(I/P)
IC1401
10PIN
VIDEO-Pr/Cr
IC1401
11PIN
VIDEO-Pb/Cb
IC1401
14PIN
VIDEO-CVBS
IC1401
15PIN
VIDEO-C
Yes (VIDEO-Y(I/P),Pr/Cr,Pb/Cb)
Is the video shignal outputted to Pin (15) of
IC1022?
Continued to A on the next page.
Yes
Yes
Yes
Yes
Yes
Yes (VIDEO-CVBS)
Yes
No
Check the line between video input terminal and
each pin of IC1301.
IC1301
8PIN
IC1301
13PIN
IC1301
2PIN
IC1301
10PIN
IC1301
15PIN
IC1301
4PIN
No
Is 5V voltage supplied to the pin(1) of IC1301?
Yes
Replace P1
(AV ASSEMBLY).
Check the line between each pin of IC1301 and each
No
pin of CN1101, and replace P1(AV ASSEMBLY)
if defective.
19PIN
IC1301
IC1301
21PIN
No
Replace P2(DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY).
Check the line between each pin of CN1101 and each
pin of IC1401, and replace P1(AV ASSEMBLY)
No
if defective.
CN1101
5PIN
CN1101
3PIN
CN1101
1PIN
CN1101
7PIN
No
Is 5V voltage applied to the Pin(4, 12) of
IC1401?
Yes
Replace P1
(AV ASSEMBLY).
No
Is the "L" pulse inputted to Pin (9, 10, 11) of
IC1022?
Yes
Replace P1
(AV ASSEMBLY).
1-8-5
→ JK2106
VIDEO-IN 1 (REAR)
→ JK2105
Y-IN 1 (REAR)
→ JK2105
C-IN 1 (REAR)
→ JK2102
VIDEO-IN 2 (FRONT)
→ JK2101
Y-IN 2 (FRONT)
→ JK2101
C-IN 2 (FRONT)
No
Check VIDEO+5V line and replace
P1(AV ASSEMBLY) if defective.
→ CN1101
18PIN
VIDEO-Y/CVBS-IN
→ CN1101
20PIN
VIDEO-C-IN
→ IC1401
3PIN
VIDEO-Y(I/P)
→ IC1401
8PIN
VIDEO-Pr/Cr
→ IC1401
VIDEO-Pb/Cb
6PIN
→ IC1401
1PIN
VIDEO-C
No
Check VIDEO+5V line and replace
P1(AV ASSEMBLY) if defective.
No
Check the line between Pin (9, 10,
11) of IC1022 and Pin (37) of
IC1501, and replace
P1(AV ASSEMBLY) if defective.
E7K7ATR

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