Sony CDX-GT610U Service Manual page 32

CDX-GT610U/GT616U/GT617UE
Pin No. Pin Name
50 MD1
51 MD2
52 KEYACK
53 TU ATTIN
54 BUIN
55 NCO
56 DAVN
57 NCO
58 UNISI
59 UNISO
60 UNISCK
61 to 63 NCO
64 SIRCS
65 FL12V ON
66 FSW OUT
67 DD ON
68 FLASH W
69 NCO
70 DOOR SW
71 RC IN1
72 ACC IN
73 TESTIN
74 TELATT
75 ILLUIN
76 AD ON
77 RESET
78 NCO
79 XOUT
80 XIN
81 VSS1
82 OSCIN
83 OSCOUT
84 VCC3
85 NCO
86 ATT
87 BUSON
88 SYSRST
89 EJECT OK SW
90 NCO
91 WAKE UP
92 NCO
93 Z MUTE
94 NCO
95 DEMO SEL
96 CYRIL SEL
97 NCO
98 CD ON
99 CDM ON
100 OPEN MUTE
32
I/O
I Operation mode setting pin (Connect to VDD.)
I Operation mode setting pin (Connect to VSS.)
I Key acknowledgment detect signal input
I Tuner mute zero cross detect signal input
I Back-up power supply detect signal input
O Not used. (Open)
I RDS (Radio Data System) data block synchronized detect signal input
O Not used. (Open)
I SONY bus data signal input
O SONY bus data signal output
O SONY bus clock signal output
O Not used. (Open)
I Remote control signal input
O 12V power supply control signal output for fluorescent indicator tube
O D/D converter oscillator frequency shift control signal output
O 3.3V D/D converter power on/off control signal output for fluorescent indicator tube
Memory mode change signal input
I
"L": flash write mode
O Not used. (Open)
I Front panel open/close detect switch signal input
I Rotary commander shift key signal input
I Accessory power supply detect signal input
I Test mode detect signal input
I Telephone attenuate detect signal input
I Illumination detect signal input
O A/D converter power supply control signal output
I CPU reset signal input
O Not used. (Open)
O Low speed operation clock signal output (32.768 kHz)
I Low speed operation clock signal input (32.768 kHz)
— Ground pin
I High speed operation clock signal input (18.432 MHz)
O High speed operation clock signal output (18.432 MHz)
— Power supply pin (+3.3 V)
O Not used. (Open)
O Audio mute control signal output
O Bus on signal output
O System reset signal output
O Eject OK signal output to CD mechanism unit
O Not used. (Open)
O Mechanism microcomputer wake up signal output
O Not used. (Open)
I Mute signal input
O Not used. (Open)
I DEMO select signal input
I Cyril correspondence discrimination signal input
O Not used. (Open)
I CD mechanism servo power supply control request signal input
I CD mechanism deck power supply control request signal input
O Not used. (Open)
Pin Description
Normally "H": Single chip mode, after reset
"H": Illumination off
"H": DEMO on, "L": DEMO off
"L": No correspondence