Sony CDX-GT55UIW Service Manual page 27

Pin No. Pin Name
59 DIAG
60 AMPSTB
61 CYRIL_SEL
62 VCC2
63 NCO
64 VSS
65 ILLUMI SEL
66 COLSW SEL
67 NCO
68 B-OUT SEL
69 AREASEL3
70 AREASEL2
71 AREASEL1
72 AREASEL0
73 R/S SW SEL
74, 75 NCO
76 INITCOL_SEL
77, 78 NCO
79, 80 DEBUG_1, DEBUG_2
81 RE-IN1
82 RE-IN0
83 to 90 NCO
91 KEYACK0
92 KEYACK1
93 NCO
94 KEYIN1
95 KEYIN0
96 AVSS
97 RC_IN0
98 AVRH
99 AVDD
100 LCD_CE
I/O
I Condition signal input from power amp IC
O Standby signal output for power regulator IC
Cyril correspondance discrimination signal input (L: No correspondance) (Fixed at L in this
I
set)
― Power supply pin (+3.3 V)
O Not used. (Open)
― Ground
I Key illumination voltage setting signal input
I Key illumination color change function signal input
O Not used. (Open)
I Black out function setting signal input (L: without black out function)
I Destination setting pin 3 (Fixed at L in this set)
I Destination setting pin 2
I Destination setting pin 1
I Destination setting pin 0
I REAR/SUB select setting signal input (L: No switched) (Fixed at H in this set)
O Not used. (Open)
I Key illumination initial color setting signal input
O Not used. (Open)
O Not used. (Open)
I Rotary encoder signal input 1
I Rotary encoder signal input 0
O Not used. (Open)
I Key acknowledge detect signal input (Rotary commander)
I Key acknowledge detect signal input (Front panel)
O Not used. (Open)
I Key signal input 1
I Key signal input 0
― Ground for A/D converter
I Rotary commander key signal input
― A/D converter external reference power supply pin (+3.3 V)
― A/D converter power supply pin (+3.3 V)
O Chip enable signal output for LCD driver
CDX-GT55UIW/GT550UI/GT600UI
Description
27