Read Sony CDX-GT450U / CDX-GT457UE / CDX-GT500U / CDX-GT500US / CDX-GT505U / CDX-GT50UMS Service Manual online
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
27
Pin No.
Pin Name
I/O
Description
59
DIAG
I
Condition signal input from power amp IC
60
AMPSTB
O
Standby signal output for power regulator IC
61
CYRIL_SEL
I
Cyril correspondance discrimination signal input (L: No correspondance) (Fixed at L in this
set)
set)
62
VCC2
—
Power supply pin (+3.3 V)
63
NCO
O
Not used. (Open)
64
VSS
—
Ground
65
ILLUMI SEL
I
Key illumination voltage setting signal input
66
COLSW SEL
I
Key illumination color change function signal input
67
NCO
O
Not used. (Open)
68
B-OUT SEL
I
Black out function setting signal input (L: without black out function)
69
AREASEL3
I
Destination setting pin 3 (Fixed at L in this set)
70
AREASEL2
I
Destination setting pin 2
71
AREASEL1
I
Destination setting pin 1
72
AREASEL0
I
Destination setting pin 0
73
R/S SW SEL
I
REAR/SUB select setting signal input (L: No switched) (Fixed at H in this set)
74, 75
NCO
O
Not used. (Open)
76
INITCOL_SEL
I
Key illumination initial color setting signal input
77, 78
NCO
O
Not used. (Open)
79, 80
DEBUG_1, DEBUG_2
O
Not used. (Open)
81
RE-IN1
I
Rotary encoder signal input 1
82
RE-IN0
I
Rotary encoder signal input 0
83 to 90
NCO
O
Not used. (Open)
91
KEYACK0
I
Key acknowledge detect signal input (Rotary commander)
92
KEYACK1
I
Key acknowledge detect signal input (Front panel)
93
NCO
O
Not used. (Open)
94
KEYIN1
I
Key signal input 1
95
KEYIN0
I
Key signal input 0
96
AVSS
—
Ground for A/D converter
97
RC_IN0
I
Rotary commander key signal input
98
AVRH
—
A/D converter external reference power supply pin (+3.3 V)
99
AVDD
—
A/D converter power supply pin (+3.3 V)
100
LCD_CE
O
Chip enable signal output for LCD driver
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