Sony CDX-F7710S Service Manual page 39

Pin No. Pin Name
60 FSW SFT
61 NC
62 FL DP POW
63 SIRCS
64 RAM BU
65 NOSE SW
66 DOOR IND
67 MA FLS W
68 MAS IF
69 DISP IF
70 DISP FLS W
71 DISP RESET
72 NC
73, 74 RE IN0, 1
75 RESET
76 NC
77 X1A
78 X0A
79 VSS
80 X0
81 X1
82 VCC
83 to 90 NC
91 TU ATT
92 NS MASK
93 VOL ATT
94 SA CLK
95 ILL IN
96 TEST IN
97 TEL ATT
98 RC IN1
99 ACC IN
100 BUS/AUX
CDX-F7710/F7710S/F7715X/F7750/F7750S
I/O
O DC/DC converter frequency change signal output
— Not used. (Open)
O Power supply control signal output of FL driver IC and display microcomputer
I Remote control signal (infrared rays) input
I RAM backup signal input
I Nose switch signal input
O Door indicator signal output
Memory mode changeover signal input
I
Normally "H" input (Single chip mode), "L" after reset: Flash wright mode
O Master microcomputer interface signal output
I Display microcomputer interface signal input
I Display flash wright mode signal input
O Display microcomputer reset signal output
— Not used. (Open)
I Rotary encoder signal input
I Reset signal input
— Not used. (Open)
— 32 kHz oscillator connect pin (32.768 kHz)
— 32 kHz oscillator connect pin (32.768 kHz)
— Ground pin
— 18 MHz oscillator connect pin (18.432 MHz)
— 18 MHz oscillator connect pin (18.432 MHz)
— Power supply pin (+3.3 V)
— Not used. (Open)
O Tuner mute control signal output
O Noise mask signal output
O Electronic volume attenuate control signal output
O Spectrum analyzer clock signal output
I Illumination on/off signal input
I Test mode detect signal input
I Telephone attenuate signal input
I Rotary commander shift key signal input
I Accessory power supply detect signal input
O BUS/AUX input select signal output "H": BUS in, "L": AUX in
Pin Description
39