Toshiba DVR610 Service Manual - Page 27

E9kgatr - power specifications

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Page 27 highlights

A Are the video signals shown above inputted into each pin of IC2404 and each pin of IC2405? No IC2405 IC2405 IC2405 IC2404 IC2404 3PIN 8PIN 6PIN 3PIN 1PIN VIDEO-Y(I/P) VIDEO-Pr/Cr VIDEO-Pb/Cb VIDEO-Y(I) VIDEO-C Yes Are the video signals outputted to each pin of No IC2404 and each pin of IC2405? IC2405 IC2405 IC2405 IC2404 IC2404 IC2404 13PIN 10PIN 11PIN 6PIN 5PIN 7PIN VIDEO-Y(I/P) VIDEO-Pr/Cr VIDEO-Pb/Cb VIDEO-CVBS VIDEO-Y(I) VIDEO-C Yes Are the video signals outputted to the specific output terminal? Are the luminance signals outputted to the No S-VIDEO OUT terminal (JK2402)? Are the chroma signals outputted to the No S-VIDEO OUT terminal (JK2402)? Are the Y, Pb/Cb, Pr/Cr signals outputted to the No COMPONENT OUT terminal (JK2403)? Are the composite video signals outputted to No the VIDEO OUT terminal (JK2751)? No Is the video signal outputted to Pin(15) of IC2406? Yes Is the video signal outputted to the emitter of Q2391? Yes No Check the line between the emitter of Q2391 and JK2751, and replace P1 (BOARD MCV) if defective. Replace P1 (BOARD MCV). Check the line between each pin of CN2201 and each pin of IC2404 and IC2405, and replace P1 (BOARD MCV) if defective. CN2201 CN2201 CN2201 CN2201 CN2201 7PIN → IC2405 5PIN → IC2405 3PIN → IC2405 1PIN → IC2404 9PIN → IC2404 3PIN 8PIN 6PIN 3PIN 1PIN VIDEO-Y(I/P) VIDEO-Pr/Cr VIDEO-Pb/Cb VIDEO-Y(I) VIDEO-C Is 5V voltage supplied to the Pin(4, 12) of IC2405 and the Pin(4) of IC2404? Yes Replace P1 (BOARD MCV). No Check P-ON+5V line and replace P1 (BOARD MCV) or P3 (BOARD POWER SUPPLY) if defective. Check the periphery of JK2402 from Pin (5) of IC2404 and replace P1 (BOARD MCV) if defective. Check the periphery of JK2402 from Pin (7) of IC2404 and replace P1 (BOARD MCV) if defective. Check the periphery of JK2403 from Pin (10, 11, 13) of IC2405 and replace P1 (BOARD MCV) if defective. Are the "L" pulse inputted to Pin(9,10,11) of IC2406? Yes Is 5V voltage supplied to Pin(16) of IC2406? Is -5V voltage supplied to Pin(7) of IC2406? No Replace P1 (BOARD MCV). Yes No Replace P1 (BOARD MCV). Check AL+5V, and AL-5V line and replace P1 (BOARD MCV) or P3 (BOARD POWER SUPPLY) if defective. 1-10-6 E9KGATR

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1-10-6
E9KGATR
Is 5V voltage supplied to the Pin(4, 12) of
IC2405 and the Pin(4) of IC2404?
Replace
P1 (BOARD MCV).
Check P-ON+5V line and
replace P1 (BOARD MCV)
or P3 (BOARD POWER
SUPPLY) if defective.
Are the video signals outputted to each pin of
IC2404 and each pin of IC2405?
Yes
Are the "L" pulse inputted to Pin(9,10,11) of IC2406?
Is 5V voltage supplied to
Pin(16) of IC2406?
Is -5V voltage supplied to
Pin(7) of IC2406?
Check AL+5V, and AL-5V line
and replace P1 (BOARD MCV)
or P3 (BOARD POWER
SUPPLY) if defective.
Yes
Yes
Replace P1
(BOARD MCV).
No
No
No
No
Yes
Yes
Yes
Yes
No
Check the periphery of JK2403 from Pin (10, 11,
13) of IC2405 and replace P1 (BOARD MCV)
if defective.
Check the periphery of JK2402 from
Pin (5) of
IC2404 and replace P1 (BOARD MCV) if defective.
Check the periphery of JK2402 from Pin (7) of
IC2404 and replace P1 (BOARD MCV) if defective.
Are the video signals outputted to the specific
output terminal?
Are the Y, Pb/Cb, Pr/Cr signals outputted to the
COMPONENT OUT terminal (JK2403)?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK2402)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK2402)?
No
No
No
No
No
Are the composite video signals outputted to
the VIDEO OUT terminal (JK2751)?
Is the video signal outputted to Pin(15) of IC2406?
Is the video signal outputted to the emitter of Q2391?
Check the line between
the
emitter of Q2391
and JK2751,
and replace P1 (BOARD MCV)
if defective.
Check the line between each pin of CN2201 and
each pin of IC2404 and IC2405, and replace
P1 (BOARD MCV) if defective.
Are the video signals shown above inputted into
each pin of IC2404 and each pin of IC2405?
No
VIDEO-Y(I/P)
VIDEO-Pr/Cr
VIDEO-Pb/Cb
VIDEO-C
IC2405
VIDEO-Y(I/P)
3PIN
IC2405
VIDEO-Pr/Cr
8PIN
IC2405
VIDEO-Pb/Cb
6PIN
IC2404
VIDEO-Y(I)
3PIN
IC2404
VIDEO-C
1PIN
IC2405
VIDEO-Y(I/P)
13PIN
IC2405
VIDEO-Pr/Cr
10PIN
IC2405
VIDEO-Pb/Cb
11PIN
IC2404
VIDEO-CVBS
6PIN
IC2404
VIDEO-Y(I)
5PIN
IC2404
VIDEO-C
7PIN
CN2201
→
IC2405
7PIN
CN2201
→
IC2405
5PIN
CN2201
→
IC2405
3PIN
CN2201
→
IC2404
9PIN
3PIN
8PIN
6PIN
1PIN
VIDEO-Y(I)
CN2201
→
IC2404
1PIN
3PIN
Replace P1
(BOARD MCV).
Replace P1
(BOARD MCV).
A