Read Sony MEX-BT2900 / MEX-BT2950 Service Manual online
MEX-BT2900/BT2950
31
Pin No.
Pin Name
I/O
Description
60
AMPSTB
O
Standby control signal output to the power amplifi er
61
CYRIL_SEL
I
Cyrillic letter response setting terminal Not used
62
VCC2
―
Power supply terminal (+3.3V)
63
NCO
O
Not used
64
VSS
―
Ground terminal
65
ILLUMI SEL
I
Key illumination voltage setting signal input
66
COLSW SEL
I
Key illumination color change function signal input Not used
67
BT_MUTE
I
Muting on/off control signal to the BT section “H”: muting on
68
B-OUT SEL
I
Blackout setting terminal “H”: blackout effective (BT2950 only), Other models is “L”
69
NCO
O
Not used
70 to 72
AREASEL2 to
AREASEL 0
I
Destination setting terminal
73
DIM SEL
I
Dimmer function selection setting signal input terminal Fixed at “L” in this set
74
NCO
O
Not used
75
MEC_SELFSW
I
Detection signal input from the CD section (self switch)
76
EQ TYPE SEL
I
Not used
77
BT_TX
O
Serial data output to the Bluetooth section
78
BT_RX
I
Serial data input from the Bluetooth section
79, 80
DEBUG_1, DEBUG_2
O
Not used
81, 82
RE-IN1, RE-IN0
I
Jog dial pulse input from the rotary encoder
83
SAIN
O
Not used
84
BT_RTS
O
RTS control signal output to the Bluetooth section
85
BT_CTS
I
CTS control signal input from the Bluetooth section
86
BT_RESET
O
Reset signal output to the Bluetooth section “L”: reset
87
BT_POWER
O
Power on/off control signal output to the Bluetooth section
88
NCO
O
Not used
89
SADATA
O
Spectrum analyzer serial data output to the electronic volume
90
SACLK
O
Spectrum analyzer serial clock signal output to the electronic volume
91
KEYACK0
I
Acknowledge signal (wake up signal) input terminal for the rotary remote commander
92
KEYACK1
I
Acknowledge signal (wake up signal) input terminal for the front panel key
93
VSM
O
Not used
94, 95
KEYIN1, KEYIN0
I
Front panel key input terminal
96
AVSS
―
Ground terminal (for A/D converter)
97
RC_IN0
I
Rotary remote commander shift key input terminal
98
AVRH
I
Reference voltage (+3.3V) input terminal (for A/D converter)
99
AVDD
―
Power supply terminal (+3.3V) (for A/D converter)
100
LCD_CE
O
Chip enable signal output to the LCD driver
Click on the first or last page to see other MEX-BT2900 / MEX-BT2950 service manuals if exist.