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MEX-XB100BT

CD MECHANISM

DECK BLOCK

(MG-101CF-188)

A

C

KEY BOARD (1/3)

D+
D–

18

57

FPI1

DAO3

54

DAO2

28

RFRP

B

15 FNI2

F

20 TPI

E

21 TNI

PD

24 MDI

LD

25 LDO

1/2VCC

22 VRO

FOCUS

31 FOO

TRACK

32 TRO

SL

34 FMO

SP

35 DMO

17 FPI2

27 RFZI

16 FNI1

RF AMP,

DIGITAL SERVO PROCESSOR,

AUDIO DSP

IC705

172

SF1_D1

170

SF1_D0

168

SF_CLK

169

SF_CE

166

SF1_D2

3

DP_OUT

2

8

X501

48MHz

139

USB_X1

140

USB_X2

X502

13.333MHz

71

XT

AL

70

EXT

AL

X503

32.768kHz

67

RT

C

_X

1

68

RT

C

_X

2

X701

16.9344MHz

67

XO

66

XI

DM_OUT

27

BSIF_DO

24

BSIF_BCK

44

LRCK_INT

26

BSIF_LR

12

BSIF_GA

TE

16

BSIF_ST_REQ

13

DEC_INT

8

DEC_XMUTE

167

SF1_D3

I2C0_SCL

I2C0_SDA

SYSTEM CONTROLLER

IC503 (1/3)

AUTOMATIC

POWER CONTROL

Q701

DRV_ON

47 DRV_ON

LOAD

60 MEC_LOAD

EJECT

41 MEC_EJECT

L_SW

57 MEC_LIMIT

D_SW

124 MEC_DSW

IN_SW

51 MEC_INSW

54 BT_DOUT
55 BT_DIN

151 DP0

10 DP_IN
11 DM_IN

SELF

137 MEC_SELFSW

150 DM0

173 USB_CHG_MOD1

25

PCM2_IN

26

PCM2_OUT

39 RF

65 BT_RX

133 BT_TX

13

UART_TX

14

UART_RX

52 BT_CLK

23

PCM_CLK

53 BT_SYNC

24

PCM2_SYNC

114 BT_RST

12

RESET

USB CHARGING CONTROLLER

IC1053 (1/2)

CTL3

IC1002

BT MODULE

2
5
6
1
3
7

SERIAL FLASH

IC502

126
125

2 SDA
6 SCL

EEPROM

IC1009

90

PIO3

91

PIO4

92

PIO5

89

PIO2

32

DEC_SDOUT_F

42

PIO12

88

PIO1

33

DEC_SDIN_CH0

45

PIO15

29

DEC_BCK_IN

91

Paradisso_BCK

49

PIO19

43

PIO13

87

PIO0

93

PIO6

6

SP_DA

TA

5

SP_CLK

22

CD_SDI

20

CD_SDO

17

CD_BUSCLK

19

CD_XCCE

10

CD_ZDET

95 96 79 80 81 82

15

DSP_SSTBY

37

14

DSP_RST

85

94

30

DEC_LRCK_IN

48

PIO18

44

PIO14

BUFFER

IC504

R-CH

59

DAO4

70

ADIN1

74

ADIN2

61

DAO5

52

DAO1

R-CH

: USB

: Bluetooth

: CD PLAY

SIGNAL PATH

: AUDIO

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

RESET

>001B

RL

FL

FL, RL, SUB

SUB

AU_IN_RCH

AU_IN_LCH

AU_IN_LCH,

AU_IN_RCH

D501

PATTERN

ANTENNA

BT1

BT ANTENNA

PIO8/CDMON0

PIO9/CDMON1

BUS2

BUS3

BUCK

CCE

SRAMSTB

RST

PIO7

SO/SIO1
SI/SIO0
SCLK
CS
WP/SIO2
HOLD/SIO3

I2C0_SDA

I2C0_SCL

I2C0_SDA, I2C0_SCL

I2C0_SDA

I2C0_SCL

I2C0_SDA, I2C0_SCL

>004B

>005B

>002B

>003B

(Page 34)

(Page 34)

(Page 35)

(Page 34)

(Page 35)

MEX-XB100BT

2

1

CN1600 (1/2)

POWER AMP

IC1600

13

47

IN1_P

FL+

FL–

OUT1_P

48

OUT1_M

44

OUT2_P

45

OUT2_M

15 IN2_P

18 IN_M

R-CH

128 I2C1_SDA
127 I2C1_SCL
176 HIT2_RESET

J001

(ANTENNA IN)

TU01

TUX-DSP04 (TUNER UNIT)

RF_ANT_IN

AUDIO_OUT_L

AUDIO_OUT_R

SDA

SCL

RSTN

R-CH

R-CH

33 INF1

31 INR1

30 INS

8 DP1

1 A1

2 A2

5 CP1

2

MUTE

6

CLIP_OTW

1

FA

U

LT

64

SCL

63

SDA

4

ST

ANDBY

175

ATT

2

AMP_ATT

28

BEEP

3

AMPSTB

MUTING

Q406

MUTING

Q408

MUTING

CONTROL

Q401, 402, 808

R-CH

10

9

FR+

FR–

4

3

RL+

RL–

R-CH

8

7

RR+

RR–

R-CH

J402

R-CH

R-CH

R

FRONT

AUDIO OUT

L

R

REAR

L

MUTING

Q404

SUB

INPUT SELECTOR, ELECTRICAL VOLUME

IC402

SYSTEM CONTROLLER

IC503 (2/3)

MIC AMP

IC1003

KEY BOARD (2/3)

AUX_L

AUX_R

AUX_GND

1

4

2

6

10

9

RL

FL

FL, RL, SUB

SUB

11 EP1

63 XM_RX

80

CLIP_DET

78

FAULT

129

DAMP_SCL

130

DAMP_SDA

48 XM_TX

96 XM_PWR

CN801

(SIRIUSXM IN)

BUFFER

IC801, 802

F801

+B

36

OUTF1

38

OUTR1

40

OUTC

MUTING

Q407

39

OUTS

: SIRIUSXM

: AUX

: TUNER

SIGNAL PATH

: AUDIO

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

: MIC

28

IG1

27

IG2

AU_IN_RCH

AU_IN_LCH

AU_IN_LCH,

AU_IN_RCH

23

SDA

22

SCL

I2C0_SCL

I2C0_SDA

I2C0_SDA,

I2C0_SCL

>002B

>003B

>004B

MCN1

Q503

(US, Canadian)

MIC IN

(Page 33)

(Page 33)

(Page 33)

MEX-XB100BT

REGULATOR

IC803

13

43

VOUT3

VIN0

9

SYNC

23

GA

TE1

44

GA

TE5

2

EN

3

LD4EN

4

ECO

6

ERR2

CN1502

CN1600 (2/2)

26

VIN2

41

VINSW

38

HSW1

+B

3

11

REM_OUT

+B

4

5

ACC

SYSTEM CONTROLLER

IC503 (3/3)

108

USB_OVR

15

VIN3

16

VIN4

+3.3V

REGULATOR

IC1001

BT_3.3V

FP_+B

PVDD

DR_6V

DR_3.3V

TU_5V

20 VOUT4

118

USB_ON

112

BT_PWR

106

PWR_ECO

4

SERVO_ON

103

DCDC_EN

42

SYNC_OUT

104

EN_SYS

28 VOUT2

VBUS_5V

AU_8.5V

ACC_IN 45

BU_IN 56

+B

D818

D817

BATTERY

CHECK

Q813

ACCESSORY CHECK

Q1501

12

ILL_IN

ILL_IN 79

DIMMER DETECT

Q1502

BACK UP

VOLTAGE DETECT

Q812, 814

IC402 B+

REGULATOR

IC1055

REGULATOR

Q805

REGULATOR

Q810, 811

D1505

D1318, 1319

D1506

B+ SWITCH

Q803

DC/DC

CONVERTER

Q1509, 1510

B+ SWITCH

Q1513, 1516

B+ SWITCH

Q1512, 1515

POWER

CONTROL

Q801, 802

POWER CONTROL

Q1503, 1504

PROTECTOR

Q1517

D802

D816

+6V

REGULATOR

IC804

+3.3V

REGULATOR

IC702

DR_1.5V

+1.5V

REGULATOR

IC704

7

SDA

8

SCL

I2C0_SCL

I2C0_SDA

I2C0_SDA,

I2C0_SCL

33 VOUT0

DC/DC CONVERTER

IC1501

5

VIN

4

CSP

18 SW

19

10

HO

8 SYNCIN/RT

16 LO

36 SW2

76

RES

RESET SIGNAL

GENERATOR

IC501

+1.5V

REGULATOR

IC703

+1.2V

REGULATOR

IC1054

BU_1.5V

BU_3.3V

P-COM_1.2V

RESET

J801

84 RC_IN1

132 RE_IN1
131 RE_IN0
122 RE_ON

135 DOOR_SW

136 SIRCS

83 KEY_IN1
82 KEY_IN0

81 RC_IN0

40 LCD_DO

115 REMOTE1K

35 LCD_CLK
38 LCD_CE

49 KEY_ACK1

KEY BOARD (3/3)

LCD_DATA

LCD_CLK

LCD_CE

SIRC

KEY_1
KEY_0

RE_1
RE_0

PANEL_SW

D502

BUFFER

Q507

BUFFER

Q506

>005B

>001B

S002

RESET

VBUS SWITCH

IC1053 (2/2)

FAULT

12 OUT

1

13

IN

D1309

3

CSN

SWITCHING
Q1507, 1508

FB

6

UVLO

11

COMP

VOLTAGE SHIFT

FEEDBACK

IC1502

REMOTE IN

(Page 33)

(Page 33)

MEX-XB100BT

Note:
•  All capacitors are in 

μF unless otherwise noted. (p: pF) 50 

WV or less are not indicated except for electrolytics and 
tantalums.

•  All resistors are in 

Ω and 1/4 W or less unless otherwise 

specifi ed.

•      f  : Internal component.
•  C : Panel designation.

•  A : B+ Line.
•  Power voltages is dc 14.4V and fed with regulated dc 

power supply from ACC and BATT cords.

•  Voltages and waveforms are dc with respect to ground 

under no-signal (detuned) conditions.

  no mark : TUNER
  (         ) : CD PLAY
       

*

  : Impossible to measure

•  Voltages are taken with VOM (Input impedance 10 M

).

  Voltage variations may be noted due to normal production 

tolerances.

•  Waveforms are taken with a oscilloscope.
  Voltage variations may be noted due to normal production 

tolerances.

•  Circled numbers refer to waveforms.

• Signal path.
  F : 

AUDIO

  f : 

TUNER

  h : 

SIRIUSXM

  J 

: CD PLAY

  d : 

USB

  E : 

AUX

  a : 

Bluetooth

  N : 

MIC

Note:
•  X : Parts extracted from the component side.
•  Y : Parts extracted from the conductor side.
•      f  : Internal component.
• 

 : Pattern from the side which enables seeing.

  (The other layers’ patterns are not indicated.)

Note: 
The components identi-
fi

 ed by mark 0 or dotted 

line with mark 0 are criti-
cal for safety. 
Replace only with part 
number specifi ed.

Note: 
Les composants identifi és 
par une marque 0 sont 
critiques pour la sécurité. 
Ne les remplacer que par 
une pièce portant le nu-
méro spécifi é.

•  Indication of transistor.

 

Caution:
Pattern face side:
(Conductor Side)
Parts face side: 
(Component Side)

Parts on the pattern face side seen 
from the pattern face are indicated.
Parts on the parts face side seen from 
the parts face are indicated.

Note 1: When the complete MAIN board is replaced, it is 

necessary to replace knob (VOL) (SV) assy simul-
taneously. Also, the destination setting, Bluetooth 
operation check and Bluetooth information writing 
is necessary. Refer to “DESTINATION SETTING 
METHOD” on page 4, “BLUETOOTH FUNCTION 
CHECKING METHOD USING A CELLULAR 
PHONE” on page 8 and “BLUETOOTH INFORMA-
TION WRITING METHOD” on page 9.

Note 2: When the complete AMP board is replaced, re-

fer to “NOTE OF REPLACING THE IC1600 ON 
THE AMP BOARD AND THE COMPLETE AMP 
BOARD” on page 6.

Note 1: When the complete MAIN board is replaced, it is 

necessary to replace knob (VOL) (SV) assy simul-
taneously. Also, the destination setting, Bluetooth 
operation check and Bluetooth information writing 
is necessary. Refer to “DESTINATION SETTING 
METHOD” on page 4, “BLUETOOTH FUNCTION 
CHECKING METHOD USING A CELLULAR 
PHONE” on page 8 and “BLUETOOTH INFORMA-
TION WRITING METHOD” on page 9.

Note 2: When the complete AMP board is replaced, re-

fer to “NOTE OF REPLACING THE IC1600 ON 
THE AMP BOARD AND THE COMPLETE AMP 
BOARD” on page 6.

Ps

1

rk (PIO18)

Ps/DIV

4

yk (RTC_X2)

Ps/DIV

Ps

5

ua (XTAL)

6

<zv/ (USB_X2)

3

yj (XO)

2

rl (PIO19)

Caution:
Pattern face side: 
(SIDE B)
Parts face side:
(SIDE A)

Parts on the pattern face side seen 
from the pattern face are indicated.
Parts on the parts face side seen from 
the parts face are indicated.