Sony CDX-GT500 Service Manual page 39

Pin No.
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90 to 92
93
94, 95
96
97
98
99
100
Great user manuals database on
Pin Name I/O
KEYACK I
TU ATTIN I
BUIN I
NCO O
DAVN I
NCO O
UNISI I
UNISO O
UNISCK O
NCO O
NCO O
DOOR IND O
SIRCS I
NCO O
FSW OUT O
DISP FLASHW I
FLASH W I
NCO O
DOOR SW I
RC IN1 I
ACC IN I
TESTIN I
TELATT I
ILUIN I
XKEYON O
RESET I
NCO O
XIN I
XOUT O
VSS1 —
OSC OUT O
OSC IN I
VCC3 —
SEL2 O
SEL5 O
BUSON O
SEL3 O
EJECT OK O
NCO O
Z-MUTE I
NCO O
CYRIL SEL I
SEL4 O
CD ON I
CDM ON I
NCO O
UserManuals.info
CDX-GT50W/GT500/GT500EE/GT550
Key acknowledgment detect signal input
Tuner mute zero cross detect signal input (AEP, UK model only)
Back-up power supply detect signal input
Not used. (Open)
RDS data block synchronized detect signal input (AEP, UK model only)
Not used. (Open)
SONY bus data signal input
SONY bus data signal output
SONY bus clock signal output
Not used. (Open)
Not used. (Open)
CD IN LED control signal output
Remote control signal input
Not used. (Open)
D/D converter oscillater frequency shift control signal output
L: 300 kHz, H: 400 kHz
Display IC flash ROM write signal input
Memory mode select signal input
Not used. (Open)
Panel open/ close detect signal input
Rotary commander shift key signal input
Accessory power supply detect signal input
Test mode detect signal input
Telephone attenuate detect signal input
Auto dimmer illumination detect signal input
A/D converter power supply control signal output
CPU reset signal input
Not used. (Open)
Sub-clock input (32.768 kHz)
Sub-clock output (32.768 kHz)
Ground pin
Main-clock output (18.432 MHz)
Main-clock input (18.432 MHz)
Power supply pin (+3.3 V)
Not used in this set. (Open)
Not used in this set. (Open)
Bus on signal output
Not used in this set. (Open)
Eject OK signal output
Not used. (Open)
CD zero cross mute detect signal input
Not used. (Open)
Cyril select signal input L: Cyril off, H: Cyril on
Not used in this set. (Open)
CD mechanism power control request signal input
CD mechanism deck power control request signal input
Not used. (Open)
Pin Description
H: On
L: Write mode
H: Panel open
H: Ill off
39