Sony MEX-BT5000 Service Manual page 63

Pin No.
Pin Name
50
KEY ACK
51 TUNATTIN
52
BUIN
53 NC
54
DAVN
55
NC
56
UNISI
57
UNISO
58
UNISCK
59, 60 NC
61
DOOR_IND
62 IT_POW
63
IT_FSW_SFT
64 FSW_SFT
65 NC
66
FLASH_W
67
RAMBU
68 DOOR_SW
69
NC
70
ACC_IN
71 to 73 NC
74
AD_ON
75
RESET
76
RST_PROTECT
77
XIN
78
XOUT
79
VSS1
80
OSCOUT
81
OSCIN
82
VCC3
83
TELLATT
84
ILLIN
85
BUSON
86 NC
87
FL_ON
88 FLD_ON
89
RC_IN1
90
PARKING
91
EJECT_OK
92
NC
I/O
Acknowledge signal (wake up signal) input terminal for the key entry Acknowledge signal is
I
input to accept any function key in the standby status On at input of "H"
I Attenuate request signal input from the tuner unit
I Back up power supply detection signal input terminal "L" is input at low voltage
- Not used
I Synchronize detection signal input of RDS data block (AEP, UK models only)
- Not used
I Serial data input from the SONY bus interface IC
O Serial data output to the SONY bus interface IC
O Serial data transfer clock signal output to the SONY bus interface IC and CD system control
- Not used
O LED drive signal output terminal for sub panel LED "H": LED on
O Power on/off control signal output terminal for the bluetooth section
O DC/DC converter oscillation frequency shift control signal output terminal for bluetooth section
DC/DC converter oscillation frequency shift control signal output terminal for fluorescent
O
indicator tube section
- Not used
I Flash writing mode detection signal input from the bluetooth controller
Internal RAM reset detection signal input from the reset signal generator
I
Input terminal to check that RAM data are not destroyed due to low voltage "L": Writing mode
I Shutter of front panel open/close detection input terminal "H": Open, "L": Close
- Not used
I Accessory power detection signal input terminal "L": accessory power on
- Not used
A/D converter power control signal output
O When the KEY ACK (pin 50) that controls reference voltage power for key A/D conversion input
is active, "L" is output from this terminal to enable the input
I System reset signal input from the reset signal generator and reset switch "L": reset
O Reset protect control signal output terminal "H": unstable operation of bluetooth controller
I Sub system clock input terminal (32.768 kHz)
O Sub system clock output terminal (32.768 kHz)
- Ground terminal
O Main system clock output terminal (18.432 MHz)
I Main system clock input terminal (18.432 MHz)
- Power supply terminal (+3.3V)
Telephone muting detection signal input terminal
I
At input of "H", the audio signal is attenuated by 20 dB
Illuminate line detect signal input terminal for the automatic dimmer control
I
"L": detected the illumination line (lighting is made dark)
O SONY bus on/off control signal output terminal "L": bus on
- Not used
O Power on/off control signal output terminal for the fluorescent indicator tube section
O Power on/off control signal output terminal for the fluorescent indicator tube driver section
I Rotary remote commander shift key input terminal
I Side brake (parking brake) detection input terminal "L": brake on
O CD eject OK signal output to the CD system control
- Not used
Description
MEX-BT5000
63