DOWNLOAD Sony DSX-A50BT / DSX-A50BTE Service Manual ↓ Size: 3.64 MB | Pages: 43 in PDF or view online for FREE

3 two claws

3 two claws

2 microphone connector (CN1004)

1 tape

4 two claws

5 sub panel block

1: Where USB cover is closed,

 

 

remove the sub panel block. 

Note 2: Where USB cover is closed, attach the sub panel block.
 

ANTENNA board may be damaged, if it pushes in strongly 

 

where USB cover is opened.

2 screw

u 8)

2 screw

u 8)

3 two ground point screws

u 6)

4 MAIN board

1 lead wire with connector

3 lead wire with connector

1 lead wire with connector

2 screw (T)

4 ANTENNA board

DSX-A50BT/A50BTE

Setting method:
1.  Press the [SOURCE/OFF] button for 1 second to turn the pow-

er off.

2.  Press the [4] 

 [5] (remote commander)  [1] buttons se-

quentially (the [1] button is pressed for two seconds).

3.  It is set to the test mode, and all segments of the liquid crystal 

display light.

Releasing method:
Press the [SOURCE/OFF] button for 1 second.

MICROPHONE  AUDIO  LOOPBACK
To confi rm the state of the internal microphone used when a 
handsfree function is used, the microphone audio is output from 
the speaker.
The breakdown judgment of the microphone can be done without 
connecting H/F with the cellular phone.

Procedure:
1.  Enter the test mode.
2.  Press the [SOURCE/OFF] button to select the Bluetooth Phone 

function.

3.  On/off of the microphone audio loopback function changes 

whenever the [2] button is pressed (“ALBM” is displayed in 
the liquid crystal display).

 

ON

Lit

OFF

None

DSX-A50BT/A50BTE

USB CONTROLLER,

INPUT SELECTOR,

AUDIO DSP,

ELECTRICAL VOLUME

IC201

SYSTEM CONTROLLER

IC101 (1/2)

LFOUT

+8.5V

1

LROUT 2

R-CH

FL+

FL–

4

1

9

FR+

FR–

2

12

RL+

CN102 (1/2)

POWER AMP

IC304

LINE AMP

IC302

CENTER VOLTAGE

GENERATOR

IC303

RL–

RR+

11

10

3

RR–

R-CH

MUTING

Q303

MUTING

Q305

: TUNER

: AUX

: AUDIO

IN-RL

11

IN_FL

12

RL- 7

RL+ 9

FL- 3

FL+ 5

R-CH

R-CH

REAR

AUDIO OUT

L

R

MUTE

22

STBY

4

AC_GND

16

OFFSET

25

R-CH

45 HIT2_SDA
46 HIT2_SCL
47 HIT2_RESET

58

AMPSTB

26

BEEP

63

PIC_ERR

56

ATT

J303

(ANTENNA IN)

L1_IN

9

L2_IN

11

R-CH

L3_IN_P

13

MUTING

CONTROL

Q109, 110

57

AMP_MUTE

MUTING
SWITCH

Q304

SIGNAL PATH

R-ch is omitted due to same as L-ch.

FRONT

AUDIO OUT

L

R

J301

TU251

TUX-DSP02 (TUNER UNIT)

AUDIO_OUT_L

RF_ANT_IN

SDA

SCL

RSTN

AUDIO_OUT_R

J304

AUX

L3_IN_N

14

UDP1

69

UDM1

68

3

2

1

D+

D–

VBUS

USB_VBUS

CN201

X201

12MHz

X12IN

X12OUT

74

75

18

SYSRST

21

SCK

22

SDO

19

CE

RESETB

51

SIFCK

52

SIFDI

53

SIFCE

55

20

SDI

SIFDO

54

17

BUSY

BUSYB

56

23

USB_IN

USB_IN

57

25

WDT_MON

WDT_MON

60

16

CMD_ERR

CMD_ERR

61

R-CH

: USB

: Bluetooth

: MIC

BT BOARD

(PATTERN ANTENNA)

MIC601

LCH_P

LCH_N

RCH_P

RCH_N

MODULE_PON

UART_RTS

RESET

BT_POWER (A50)

85

BT_CTS (A50)

83

UART_CTS

BT_RTS (A50)

82

BT_RESET (A50)

84

UART_TX

UART_RX

BT_RX (A50)

76

MUTE

BT_MUTE (A50)

65

BT_TX (A50)

75

R-CH

MIX AMP

IC602

MIC+_IN

MIC_OUT