Sony MEX-BT38UW Service Manual page 38

MEX-BT38UW/BT3800U/BT3807U/BT3850U
Pin No. Pin Name
63 XILL_IN
64 ATT
65 VCC
66 VSS
67 BU_CHECK
68 AMP_STB
69 XDIAG
70 EJECT_OK
71 SA_OUT
72 SA_CLK
73 F_AUX
74 BT_ATT_XEN
75 VBUS_ON
76 XUSB_OVR
77 FLASH_EN0
78 FLASH_EN1
79 USB_ON
80 DD_ON
81 TEL_ATT
82 XACC_IN
83 XBUS_ON
84 CD_ON
85 CDM_ON
86 XSYS_RST
87 BT_MIC_POW
88 XBT_MIC_SEL
89 BT_MIC_DET
90 VCC
91 VSS
92 OSC_OUT
93 OSC_IN
94 BT_MUTE
95 SIRCS
96 BT_INT-HF
97 BT_CVC
98 ZAPPIN_BEEP
99 SYNC_OUT
100 BEEP
38
I/O
Illuminate line detect signal input for the auto dimmer control
I
"L" Not used
O Muting on/off control signal output terminal
- Power supply terminal (+3.3V)
- Ground terminal
I Back up power supply detection signal input terminal
O Standby control signal output to the power amplifi er
I Diagnostic signal input from the power amplifi er
I CD eject OK signal output to the CD section
O Serial data output terminal
O Serial data transfer clock signal output terminal
O Muting on/off control signal output terminal
O Muting on/off control signal output terminal for the Bluetooth section
O Power on/off control signal output terminal for the CD section
I Over voltage detection signal input terminal for USB power supply section
- Not used
- Not used
O Power on/off control signal output terminal for the USB section
O Power on/off control signal output terminal for the USB section
Telephone muting detection signal input terminal
I
ated by 20 dB
I Accessory power detection signal input terminal
O SONY bus on/off control signal output to the SONY bus interface
I CD servo power supply control request input terminal
I CD mecha power supply control request input terminal
O Reset signal output terminal
O Microphone power on/off control signal output for the Bluetooth section
O Microphone selection signal output terminal
I Microphone detection signal input terminal for the EXTERNAL MICROPHONE jack
- Power supply terminal (+3.3V)
- Ground terminal
O Main system clock output terminal (7.92 MHz)
I Main system clock input terminal (7.92 MHz)
I Muting on/off control signal input from the Bluetooth section
I Remote control signal input from the remote control receiver
I HF operation notifi cation signal input from the Bluetooth section
O CVC selection request signal output to the Bluetooth section
O Beep sound drive signal output to the ellectrical volume
O Synchronize signal output terminal
O Beep sound drive signal output to the power amplifi er
Description
"L" is input at low voltage
Not used
Not used
Not used
At input of "H", the audio signal is attenu-
"L": accessory power on
Not used
Dimmer is present at input of
"L": power on
"H" active