Sony CDX-GT40U Service Manual page 38

CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
Pin No. Pin Name
55 EXTATT_XEN
56 TELATT
57 ACC_IN
58 ATT
59 DIAG
60 AMPSTB
61 CYRIL_SEL
62 VCC2
63 F_AUX_ATT
64 VSS
65 ILLUMI SEL
66 COLSW SEL
67 BT_MUTE
68 B-OUT SEL
69 AREASEL3
70 AREASEL2
71 AREASEL1
72 AREASEL0
73 MODELNAME_SEL0
74 MODELNAME_SEL1
75 MODELNAME_SEL2
76 MODELNAME_SEL3
77 BT_TX
78 BT_RX
79, 80 DEBUG_1, DEBUG_2
81 RE-IN1
82 RE-IN0
83 ILL_IN
84 BT_RTS
85 BT_CTS
86 BT_RESET
87 BT_POWER
88 BT_MIC_DET
89 SA_DATA
90 SA_CLK
KEYACK0
91
92 KEYACK1
93 BT_MIC_ON
94 KEYIN1
95 KEYIN0
96 AVSS
97 RC_IN0
98 AVRH
99 AVDD
100 LCD_CE
38
I/O
External mute control signal output
O
"L": CD or USB source is selected, "H": Other source is selected
I Telephone attenuator detect signal input (Fixed at L in this set)
I Accessory power supply detect signal input
O Audio mute control signal output
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 terminal (+3.3 V)
O Not used. (Open)
― Ground terminal
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
I Destination setting pin 2
I Destination setting pin 1
I Destination setting pin 0
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
I Rotary encoder signal input 1
I Rotary encoder signal input 0
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
I Mechnism serial data input
O Mechnism serial clock output
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 terminal for A/D converter
I Rotary commander key signal input
― A/D converter external reference power supply terminal (+3.3 V)
― A/D converter power supply terminal (+3.3 V)
O Chip enable signal output for LCD driver
Description
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)