Sony CDX-F5500 Service Manual page 18

CDX-F5500/F5500X
Pin No. Pin Name
63 TEL ATT
64 ACC IN
65 SIRCS
66 RAM BU
67 TEST IN
68 FLASH W
69 NOSE SW
70, 71 NC
72 DOOR SW
73 DOOR IND
74 RC IN1
75 XKEY ON
76 NC
77 RESET
78 NC
79 X1A
80 X0A
81 VSS
82 X0
83 X1
84 VCC+3.3
85 to 88 NC
89 ZERO DET R
90 ZERO DET L
91 CD STB
92 CD IN SW
93 CD LOAD
94 CD ON/EJECT
95 CDM ON/D SW
96 CD LIMIT
97 RFOK
98 CD XRST
99 CD A0
100 NC
18
I/O
O TEL ATT signal output
I Accessory power supply detect signal input
I Remote control signal (infrared rays) input
O Not used in this set. (Fixed at "L".)
I Test mode detect signal input
Memory mode changeover signal input
I
Normally "H" input (single chip mode) "L" after reset: Flash write mode
I Nose detect switch signal input
— Not used in this set. (Open)
Front panel open/close detect signal input
I
"L" input: Panel close, "H" input: Panel open
O Door indicator control signal output
I Rotary commander shift key signal input
O Key power supply control signal output Pin rj (KEY ACK) active: "L" output
— Not used in this set. (Open)
I Reset signal input
— Not used in this set. (Open)
— Oscillator connect pin (32 kHz)
— Oscillator connect pin (32 kHz)
— Ground pin
— Oscillator connect pin (3.68 MHz)
— Oscillator connect pin (3.68 MHz)
— Power supply pin (+3.3 V)
— Not used in this set. (Open)
I Mechanism deck mute zero closs detect signal input R
I Mechanism deck mute zero closs detect signal input L
CD servo data strob signal output Timing of data latch: "L" output
O
Not used in this set. (Open)
I CD mechanism IN-SW detect signal input
O CD mechanism loading motor control signal output
O CD mechanism eject motor control signal output
I CD mechanism DSW detect signal input
I CD mechanism IN-LIMIT SW signal input
I CD servo RFOK signal input
O CD servo reset signal output
CD servo command/parameter identification signal output Not used in this set. (Open)
O
Command transmission: "L" output, parameter transmission: "H" output
— Not used in this set. (Open)
Pin Description
Not used in this set. (Open)
Not used in this set. (Open)
Not used in this set. (Open)
Not used in this set. (Open)