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67
27D
V
-S100
27D
V
-CS10
Hi-Fi audio recording failure.
NO
NO
YES
NO
YES
YES
YES
NO
NO
NO
Are there the audio output signals at pins (53) and (57) of IC6651?
Hi-Fi audio playback failure.
NO
YES
YES
NO
L-ch
R-ch
Pin (14)
Pin (9)
Are the following signals applied to
the terminals of IC6651?
Are 5V and 9V voltages applied at
pins (40) and (58) of IC6651
respectively?
Check the line between pins (38)/(40) of
IC1301 and pins (14)/(9) of IC6651.
Is there the playback envelope output
signal (300mVp-p) at pin (29) of
IC6651?
Replace IC6651.
NO
YES
NO
YES
YES
NO
NO
Is the REC AGC ADJ terminal
voltage (1.7V) at pin (37) of IC6651
as specified?
Is the voltage at pin (29) of IC6651
about 3.7V?
Replace IC6651.
Check the BIAS CTL line.
Are there the record FM output
signals from pin (21) to pin (24) of
IC6651 for CH-1, and from pin (21) to
pin (22) of IC6651 for CH-2?
Is 5V voltage applied at pin (25) of
IC6651?
Check the connectors AH and MZ.
Check the PC5V line.
Replace IC6651.
Is there the A-H.SW.P. input signal at
pin (27) of IC6651?
Check the A-H.SW.P. signal line
between pin (27) of IC6651 and pin
(26) of IC2001.
Check the PC5V and PC9V regulator
circuits.
Check the line between pins
(42)/(43) of IC6651 and pins
(18)/(17) of IC2201.
Is there the sub-carrier input signal
(3.58MHz, about 900mVp-p) at pin
(45) of IC6651?
Are there the serial clock and data
signals at pins (42) and (43) of
IC6651?
Is the voltage at pin (28) of IC6651
at "H" level?
Check the line between the emitter of
Q5501 and pin (45) of IC6651.
FLOW CHART No. 2-17
FLOW CHART No. 2-16
Summary of Contents for 27DV-CS10
Page 72: ...73 27DV S100 27DV CS10 72 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT ...
Page 103: ...111 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit ...
Page 106: ...116 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM TERMINAL SUB Unit ...
Page 107: ...117 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM FRONT AV Unit ...
Page 122: ...144 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H MAIN Unit Wiring Side ...
Page 123: ...145 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H MAIN Unit Chip Parts Side ...
Page 124: ...146 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H TERMINAL Unit Wiring Side ...
Page 125: ...147 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H TERMINAL Unit Chip Parts Side ...
Page 126: ...148 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H TV POWER Unit Wiring Side ...
Page 127: ...149 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DEFLECTION Unit Wiring Side ...
Page 128: ...150 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DVD VCR POWER Unit Wiring Side ...
Page 130: ...152 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DVD MAIN Unit A Side ...
Page 131: ...153 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DVD MAIN Unit B Side ...