Sony MEX-BT3950U Service Manual

MEX-BT39UW/BT3900U/BT3950U
MEX-BT39UW/BT3900U/BT3950U
2020
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM - AUDIO Section (1/2) -
xSIGNAL PATH
: USB
: CD PLAY
: AUDIO
: Bluetooth
: MIC
xR-ch is omitted due to same as L-ch.
D731
2
3
1
OPTICAL PICK-UP
BLOCK
(DAX-25A)
CD MECHANISM DECK
(MG-101P-188//Q)
SWITCH
BOARD
SERVO BOARD
BT BOARD
(PATTERN ANTENNA)
MIC201
AU_FL_CH
RXD
CD_ON
CDM_ON
VBUS_ON
24 MC_TX
37 CD_ON
38 CDM_ON
51 VBUS_ON
TXD
USB_D-
USB_D+
D-
VBUS VBUS
D+
22 MC_RX
XSYS_RST
SP_CLK
49 SA_CLKOUT
SP_DATA
48 SA_DATAIN
SYS_RST
BU_CHECK
BU_CHECK
A_ATT
AU_FR_CH R-CH
LCH_P
RCH_P R-CH
LCH_N
RCH_N R-CH
Z_MUTE
EJECT_OK
WAKE_UP
40 Z_MUTE
BU+3.3V
39 WAKE_UP
VDD_3.3V
SERVO+3.3V
BU_3.3V
BU+3.3V
DR_6V
MECHA+6V
88 BT_MIC_DET
D204
D404
D403
D401
BATT
ATT
58
SYSTEM CONTROLLER
IC501 (1/3)
MIC
+3.3V
MIC B+
MIC+_IN
MIC_OUT
B+ SWITCH
Q201, 202
MIC INPUT
SELECT
IC201
MODULE_PON
UART_RTS
RESET
BT_POWER
87
BT_CTS
85
UART_CTS BT_RTS
84
BT_RESET
86
UART_TX
UART_RX
BT_RX
78
MUTE BT_MUTE
67
BT_TX
77
BT-L_P
BT-L_N
ATT
FL_CH
AU_RL_CH
AU_RR_CH R-CH
RL_CH
AU_SUB_CH
SUB_CH
AU_IN_LCH
AU_IN_RCH R-CH
IN_LCH
A
MUTE
DRIVE
Q407, 409
B
CN902
BU +3.3V
RESET SIGNAL
GENERATOR
IC403
S401
RESET
RESET
12
MIC IN
(Page 21)
(Page 22)

Sony MEX-BT3950U Specifications

General

Brand	Sony
Model	MEX-BT3950U
Type	Car Receiver
Bluetooth	Yes
Bluetooth Functions	Hands-free calling, Audio streaming
USB Port	Yes
Auxiliary Input	Yes
Audio Formats Supported	MP3, WMA, AAC
Tuner	Yes
Tuner Bands	AM/FM
Display Type	LCD
Equalizer	Yes
Panel Type	Detachable Faceplate
CD Player	Yes
Maximum Output Power / Channel Qty	52 Watts x 4 Channels
RMS Power Output	17W
Media Type	USB
Steering Wheel Control	Yes
Display	Single-line