VC-A598U/H995U/H996U
-H997U/H9977U/H998U
46
Picture E-E does not appear.
Is picture signal input into pins(30) and (31) of IC201?
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
1
External input mode
Check the line between the rear video input terminal
and pin(30) of IC201.
2
U/V tuner mode
Check the line between the pin(25) of U/V tuner and
pin(31) of IC201.
Is picture signal output to the pin(52) of IC201?
Is picture signal input into the pin(49) of IC701?
Is picture signal output to the pin(47) of IC701 ?
Check the line between pin(52) of IC201
and pin(49) of IC701.
Check the line between pins(63) and (62) of
IC201 and pins(56) and (57) of IC701.
Is picture signal output to the emitter of video output
buffer (Q251)?
1
Line output: Check Q251 periphery and output terminal periphery.
2
RF output: Check Q251 periphery and tuner pin(6) periphery.
Is 5V applied to the pins(12), (61) and (90) of IC201?
Is 5V applied to the pin(51) of IC701?
Check the YC 5V line.
Check the AT 5V line.
Is serial data clock signal applied to the
pins(63) and (62) of IC201?
Check Q251 periphery.
FLOW CHART NO.18
Содержание VC-A598U
Страница 6: ...VC A598U H995U H996U H997U H9977U H998U 6 1 3 LOCATION OF MAJOR COMPONENTS AND CONTROL ...
Страница 51: ...VC A598U H995U H996U H997U H9977U H998U 51 8 BLOCK DIAGRAM POWER CIRCUIT BLOCK DIAGRAM ...
Страница 52: ...VC A598U H995U H996U H997U H9977U H998U 52 SYSTEM SERVO BLOCK DIAGRAM ...
Страница 53: ...VC A598U H995U H996U H997U H9977U H998U 53 ...
Страница 54: ...VC A598U H995U H996U H997U H9977U H998U 54 SIGNAL FLOW BLOCK DIAGRAM VC A598U ...
Страница 56: ...VC A598U H995U H996U H997U H9977U H998U 56 SIGNAL FLOW BLOCK DIAGRAM VC H995U H996U H997U H9977U H998U ...
Страница 61: ...VC A598U H995U H996U H997U H9977U H998U 61 13 12 11 10 9 8 7 ...
Страница 65: ...VC A598U H995U H996U H997U H9977U H998U 65 13 12 11 10 9 8 7 ...
Страница 67: ...VC A598U H995U H996U H997U H9977U H998U 67 13 12 11 10 9 8 7 ...
Страница 69: ...VC A598U H995U H996U H997U H9977U H998U 69 13 12 11 10 9 8 7 ...
Страница 72: ...VC A598U H995U H996U H997U H9977U H998U 72 7 6 5 4 3 2 1 A B C D E F G H MAIN PWB ...
Страница 73: ...VC A598U H995U H996U H997U H9977U H998U 73 13 12 11 10 9 8 7 ...