1-10-15
E9KG0TR
FLOW CHART NO.10
Video E-E does not appear.
Is the video signal ouputtted to Pin(20) of IC2805?
Is the video signal inputted to Pin(30) of IC1301?
Yes
Check the line between Pin(20) of IC2805 and
Pin(30) of IC1301, and replace P1 (BOARD MCV)
if defective.
No
No
Is 5V voltage supplied to Pin(1) of IC2805?
Replace
P1 (BOARD MCV).
Check P-ON+5V line and
replace P1 (BOARD MCV)
or P3 (BOARD POWER
SUPPLY) if defective.
Yes
No
Yes
Are the video signals inputted to each pin of
IC2805?
Check the line between video input terminal and
each pin of IC2805 ,and replace P1 (BOARD
MCV) if defective.
Yes
IC2805
VIDEO-IN 1 (REAR)
8PIN
IC2805
Y-IN (REAR)
13PIN
IC2805
C-IN (REAR)
2PIN
IC2805
IC2805
VIDEO-IN 2 (FRONT)
10PIN
ATU-VIDEO
17PIN
VIDEO-IN 1 (REAR)
Y-IN (REAR)
C-IN (REAR)
VIDEO-IN 2 (FRONT)
IC2805
→
JK2804
8PIN
IC2805
→
JK2401
13PIN
IC2805
IC2805
→
JK2401
2PIN
→
JK2803
10PIN
TUNER-VIDEO
IC2805
→
4PIN
17PIN
Yes
Yes
Yes
Yes
No
No
No
No
Is the C-SYNC signal outputted to Pin(25) of IC1301?
Is the C-SYNC signal inputted to Pin(50) of IC1501?
Is 5V voltage supplied to Pin(23) of IC1301?
Is the serial data, clock and chip select signal
supplied to Pin(53, 54, 55) of IC1301?
Check the P-ON+5V(2) line and replace
P1 (BOARD MCV) or P3 (BOARD
POWER SUPPLY) if defective.
Check the line between Pin(25)
of IC1301 and Pin(50) of IC1501,
and replace P1 (BOARD MCV)
if defective.
Check the line between Pin(53,54,55) of IC1301
and Pin(19,20,21) of IC1501, and replace
P1 (BOARD MCV) if defective.
Replace P1
(BOARD MCV).
No
Check the line between Pin(15) of IC2406
and Q2391, and replace P1 (BOARD
MCV) if defective.
Is the video signal outputted to the emitter of Q2391?
Yes
Check the line between the emitter of Q2391 and
the video output terminal (JK2751), and replace
P1 (BOARD MCV) if defective.
Yes
Yes
No
Yes
No
Yes
No
Is the video signal outputted to Pin(15) of IC2406?
Is the "H" pulese inputted to Pin(9, 10, 11) of
IC2406?
Check the line between Pin(26) of IC1301 and
Pin(1) of IC2406, and replace P1 (BOARD MCV)
if defective.
Is the video signal inputted into Pin(1) of IC2406?
No
Check the AL+5V, AL-5V line, and replace P1 (BOARD
MCV) or P3 (BOARD POWER SUPPLY) if defective.
Is 5V voltage supplied to
Pin(16) of IC2406?
Is -5V voltage supplied to
Pin(7) of IC2406?
Replace P1
(BOARD MCV) or
P3 (BOARD
POWER SUPPLY).
Содержание D-VR7KC
Страница 4: ...1 1 1 E9KG0SP SPECIFICATIONS ...
Страница 18: ...1 6 6 E9KG0DC Fig D10 22 Deck Pedestal 23 Front Bracket R S 25 S 25 S 25 S 25 S 26 ...
Страница 57: ...1 13 3 E9KG0SCM1 MAIN 1 7 Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 59: ...1 13 5 E9KG0SCM3 MAIN 3 7 Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 60: ...1 13 6 E9KG0SCM4 MAIN 4 7 Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 61: ...1 13 7 E9KG0SCM5 MAIN 5 7 Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 62: ...1 13 8 E9KG0SCM6 MAIN 6 7 Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 63: ...1 13 9 E9KG0SCM7 MAIN 7 7 Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 65: ...1 13 11 E9KG0SCFJ FRONT JACK Schematic Diagram VCR Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 66: ...1 13 12 TUNER Schematic Diagram E9KG0SCT NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 72: ...1 13 18 E9KG0SCD6 DVD MAIN 6 6 Schematic Diagram DVD Section NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 77: ...1 13 23 BE9MG0F01031A BOARD TUNER Top View NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 78: ...1 13 24 BOARD TUNER CBA Bottom View BE9MG0F01031A NOTE BOARD MEANS PRINTED CIRCUIT BOARD ...
Страница 90: ...1 18 4 E9KG0PEX Packing Upper Side Lower Side X1 X22B X22A X20B X5 X3 X20A ...
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