![Sony MEX-BT2500 Service Manual Download Page 37](http://html.mh-extra.com/html/sony/mex-bt2500/mex-bt2500_service-manual_395986037.webp)
37
MEX-BT2500
Pin No.
Pin Name
I/O
Description
58
UNISI
I
Serial data input from the CD section
59
UNISO
O
Serial data output to the CD section
60
UNISCK
O
Serial data transfer clock signal output to the CD section
61
Z-MUTE
I
Muting on/off control signal input from the CD section
62
NOSESW
I
Front panel remove/attach detection signal input terminal "L": front panel is attached
63
FLASH_W
I
Flash writing mode detection signal input terminal "L": flash writing mode
64
SIRCS
I
Remote control signal input from the remote control receiver
65
BT_PLAY
O
Key signal output to the bluetooth section
66 to 69
BT_STATUS0 to
BT_STATUS3
I
Status input from the bluetooth section
70
BT_MUTE
I
Muting on/off control signal input from the bluetooth section
71
NCO
-
Not used
72
BT_TEST1
O
Test mode setting terminal for the bluetooth test mode 1
73
BT_TEST2
O
Test mode setting terminal for the bluetooth test mode 2
74
BT_FR
O
Key signal output to the bluetooth section
75
BT_FF
O
Key signal output to the bluetooth section
76
NCO
-
Not used
77
RESET
I
System reset signal input from the reset signal generator and reset switch "L": reset
78
NCO
-
Not used
79
XOUT
O
Sub system clock output terminal (32.768 kHz)
80
XIN
I
Sub system clock input terminal (32.768 kHz)
81
VSS1
-
Ground terminal
82
OSCIN
I
Main system clock input terminal (18.432 MHz)
83
OSCOUT
O
Main system clock output terminal (18.432 MHz)
84
VCC3
-
Power supply terminal (+3.3V)
85
CYRIL_SEL
I
Cyrillic letter response setting terminal "H": corresponds to cyrillic letter
86
DEMOSEL
I
Demo play setting terminal "H": demo play on
87
NCO
-
Not used
88
SYSRST
O
Reset signal output to the CD section
89
BT_STATUS_
POW
I
Power supply status input from the bluetooth section "H": bluetooth power on
90
BT_OPRPOW
O
Key signal output to the bluetooth section
91
CDON
I
CD servo power supply control request input terminal
92
CDMON
I
CD mecha power supply control request input terminal
93
BT_MFUNC
O
Key signal output to the bluetooth section
94
BT_RESET
O
Reset signal output to the bluetooth section "L": reset
95
BT_POWER_
CTRL
O
Power on/off control signal output terminal for the bluetooth section
96
BUSON
O
SONY bus on/off control signal output terminal "L": bus on
97
TESTIN
I
Test mode setting terminal "H": test mode
98
TELATT
I
Telephone muting detection signal input terminal
At input of "H", the audio signal is attenuated by 20 dB
99
ACCIN
I
Accessory power detection signal input terminal "L": accessory power on
100
ATT
O
Muting on/off control signal output terminal
Summary of Contents for MEX-BT2500
Page 26: ...26 MEX BT2500 MEMO ...