Panasonic CQ-C7703N, Service Manual, Page: 12 / 105

Pin
No.
Port Description I/O (V)
FM AM CD
50 H
STANDBY
Standby control
from external I 5.0 5.0 5.0
51 NC Not connected - - - -
52 FP
MOTOR1
Open/Close of
Front panel 1 O 4.9 5.0 4.9
53 FP
MOTOR2
Open/Close of
Front panel 2 O 4.9 5.0 4.9
54 V CONT1 Reference voltage
control for motor
driver O 0 0 5.0
55 REMO 1 Remote control data I 5.0 5.0 5.0
56 SA CLK Spectrum analyzer
clock O 5.0 5.0 4.9
57 EXT MUTE Pulled up to H I 5.3 5.2 5.2
58 AMP CONT Power control for
external Amplifier
O 4.9 5.0 4.9
59 BZ OUT Buzzer signal O 0 0 0
60 OEL
VCONT
Power control for
OEL O 0 0 0
61 WOW
MODE1
SRS WOW mode 1
(C8403U only) O 0 0 0
62 WOW
MODE2
SRS WOW mode 2
(C8403U only) O 0 0 0
63 WOW
MODE3
SRS WOW mode 3
(C8403U only) O 0 0 0
64 DIM1(NC) Not connected - - - -
65 DIM2(NC) Not connected - - - -
66 MAIN CNT2 Power control for
Hub
O 5.0 5.0 5.0
67 SRC KEY SOURCE key
detection I 5.0 4.9 5.0
68 PANEL IN Panel attachment
detection I - - -
69 RDS CLK
RDS clock input
INT 2.6 0 2.6
70 NC Not connected - - - -
71 RDS DATA RDS data input I 2.6 0.2 2.9
72 MAIN
CONT
Main power control O 4.9 4.9 4.9
73 INV CONT Dimmer power
control
O 5.0 5.0 5.0
74 AF MUTE Audio mute O 5.0 5.0 5.0
75 RESET Reset I 5.0 5.0 5.0
76 ELEV Focus elevation for
SRS WOW (C8403U
only) O - - -
77 X1A Oscillator clock O 2.1 2.1 2.1
78 X0A Oscillator clock I 1.6 1.6 1.6
79 Vss GND - 0 0 0
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