Sony MEX-BT2500 Service Manual page 37

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