Sony CDX-4000X Service Manual page 18

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Pin No. Pin Name
69 AMP ON
70 MUT
71 AMP MUT
72 VOL MUT
73 TU ON
74 EEP SDA
75 EEP SCL
76 IF BW
77 NC
78 NC
79 REIN1
80 REIN0
81 AD ON
82 – 92 NC
93 OPEN
94 – 98 NC
99 PW ON
100 NC
TE
L 13942296513
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I/O
O Power supply on/off control signal output
O System attenuate control signal output
O Power amp attenuate control signal output
O Mute control signal output for electrical volume
O Tuner attenuate signal output
I/O Tuner EEPROM serial data signal input/output
O Runer EEPROM serial clock signal output
I Not used.
— Not used.
— Not used.
I Rotary encoder signal input
I Rotary encoder signal input
O Power control output for A/D conversion
— Not used.
I Front panel open/close condition signal input
— Not used.
O System power supply control signal output
— Not used.
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2 9
8
Pin Description
Tuner switch VCO level shift signal input
Q Q
3 6 7 1 3
.
9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9