PIONEER FX-MG8037, FX- MG8137, FX-MG8037ZT, FX-MG8037EW, FX-MG8037ZT-91EW Service Manual

ORDER NO.

CRT3021

PUB. NO. CRT3021

AUDIO SYSTEM

HEAD UNIT

Manufactured for TOYOTA
by PIONEER CORPORATION

VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No.
LEXUS RX330 EUROPE February 2003 86120-48210 P3918 FX-MG8037ZT/EW

86120-48350 P3918 FX-MG8037ZT-91/EW
86120-48230 P3919 FX-MG8137ZT/EW
86120-48370 P3919 FX-MG8137ZT-91/EW

RX330

2

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

For details, refer to "Important symbols for good services".

FX-MG8037ZT/EW(P3918) FX-MG8137ZT/EW(P3919)

LOAD

LOAD

- This service manual should be used together with the following manual(s):

Model No. Order No. Mech. Module Remarks
CX-1011 CRT2406 3L Cassette Mech. Module:Mech.Description, Disassembly
CX-951 CRT2872 G2 CD Mech. Module:Circuit Description, Mech.Description, Disassembly

- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

19

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM(1)

M

LOADING

VR1 ELV SENSE

VR11

S31 CAMLOAD

PU UNIT(SERVICE)(PX1)

PCB UNIT(M2 UNIT)

HOLOGRAM

UNIT

FOCUS ACT

TRACKING ACT

MD

LD+

LD-

LD

MD

FO+
TO+

CN41

M

M

SPINDLE

M3 CARRIAGE

CLAMP

10

2

1

16
14

A+C,B+D,
E,F

2

A3

3
5

A2
A1

IC 1

BA6849FS

MOTOR
DRIVER

CN1

EC

19

S2 CLAMP

HOME

S1 HOME

5

2

1

5

2

1

CN42

S41 LOAD3

PCB UNIT

23

14

13

28
26

6

9

10

1

11
12

23

14

13

28
26

6

9

10

1

11
12

PCB UNIT(SIDE)

CN12

S11 CAMCLMP

M

M1 CAMGEAR

CN31

M

M2 ELV

S32 CAMEOK

D31

D32

PCB UNIT
(LED)

CN14

CN13

Q22 Q21

S21 LOAD1

S22 LOAD2

PCB UNIT
(LOAD)

2

1

4
5

CN11

MD

23

32

33

LD+

LD-

FOP

18

TOP

20

SIN(EC)

40

CLAMP

36

HOME

37

LOADSW2

45

50

COP

34

COM

35

CGM

3

CGP

1

ELP

15

ELM

13

CAMOK

11

CAMLOAD

10

LED

12

ELVSNS

46

EREF

48

LOADPHT

7

LOADSW1

8

LOP

6

LOM

5

G

F

H

D

E

1

1

2

2

5

5

7

7

8

8

C

CN101

20

VDCNT2

R

CN501

SUB
ANTENNA

16

13

10

11

2

AUDIO+B

SWVDD

MAIN
ANTENNA

IC 501

LA1061M

5
6

Q501

DIVERSITY

COMP

IC561

HA12181FP

AM NOISE CANCELER

CN351

SUB

MAIN

1

NIN

39

FMSD

FML

Q401

MFIX

13

CSL

BU

8

4

19

20

3

CN353

IC 3

EEPROM

28

27

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51

CF52 CF53

IC1

MIXER, IF AMP, DET.

6

21
18

LDET

COMP

222510 14 12 15 16 8 13 2 3 4

CF202

VDD

VCC

DI/DO

CE2CKCE1

SDBWSLFMSD

NL1

NL2

IC 2 FM MPX

AMANT

FMANT

ATT

ATT

AMRF

FMRF

IMG ADJ

RF ADJ

X901

10.25MHz

ANT ADJ

LOCL

23

LOCH

AMDET

MPXREF 41kHz

AM 2ND IF

450kHz

19

CREQ

11

DGND

1

STIND

L ch

5

R ch

924

AMDET

FMLOCL

20

177

AMPNS

WC

26

RFGND

AMIN

Q561

IC252

PM4009A

X251

RDS
DECODER

1211

20

8

AM

Q402

VDD

Q404

Q351

LDET

RDSMUTE

FMSD

1

CD9V

11

AUDIO+B

RDT

5

Q403

Q406

AMB

Q405

FMB

Q252

NL2

Q502

AUDIO+B

LOCL

Q504

SWVDD

STBY

B.U

MUTE

MTL

LOAD

5

1

4

2

1

3

4

11

9

20

19

8

I

DECK UNIT

IC251

HA12216F

IC351

PA2020A

EQ AMP

MECHANISM

DRIVER

CN251

CN252

CN254

CN255

CN253

6

16

TAPE+B

Lch

10

12

FWD
L-ch

REV
L-ch

37
38
39

18

19

17

3

15 6

8

7

10

CN256

3

15 6

S101

LOAD

S102

MODE

Q101
REEL

SENSE

M

M

M2

SUB

MOTOR

M1

MAIN

MOTOR

5
2
1

SENSOR UNIT

S103
70µs

4

4

J

I

23

32

33

18
20

40

36

37

45

50

34
35

3
1

15
13

11

10

12

46

48

7

8

6
5

CONTROL UNIT(G2T)

Q101

96

PD

CD CONTROL

97

LD

A+C,B+D,E,F

L-OUT

16

IC504(1/2)

TC74VHCT08AFT

3 1,2

IC 201

UPD63711GC

6 4,5

33

LRCKIN

31

SCKIN

3.3V - 5V CONVERTER

5V - 3.3V CONVERTER

IC505(1/2)

TC74VHC541FT

DOUT,LRCK,
SCKO,RADV,
SBSY

15

ZLRCK

14

ZSCK

IC501

SM5903BFP

SHOCK PROOF
CONTROLLER

10

V+5

22

3V

IC507

MSM51V17400F6TFT

IC702

PD5748E

MECH.
CONTROLLER

IC504(2/2)

TC74VHCT08AFT

IC505(2/2)

TC74VHC541FT

YMDATA,
YMLD,
YMCLK

21

ZSENSE

9,10

8

98

ZSENSE

BUFFER RAM

14

VDD

VCC2

3+3ch

DRIVER

IC 301
BD7962FM

ELV1,ELV2,ELVCONT,LD1,LD2,
LOCONT,CG1,CG2

9

29

CONT

MUTE

MOTOR CONTROL

14

VD

XSI,XSO,XSCK,XSTB,XAO,XRST,FOK,LOCK,
TSI,TSO,TSCK,TSTB,PACK,SBSY

SERVO DSP I/F

SERVO EQUALIZER OUTPUT

FD,TD,SD,MD

18

15

OUT1+

OUT2-

Q602

Q603

CD MUTE

VD

Q601

74

CDMUTE

CN101

CN501

BSI,BSO,BSCK,BRXEN,BSRQ,BRST

10

reset

LOUT

37

VDCONT

9

6

3

RESET

VDCONT

VDD

VD

VD

17
18

IC 303

BA05SFP

5V REGULATOR

4

2

V+5

S-818A33AUC-BGN

3V REGULATOR

1

5

IC 302

3V

92

TEMP

94

VDIN

VD

26

OPOUT

COP

COM

ELP

ELM

LOP
LOM
CGM

CGP

19
20

2

3
21
22
34
35

OUT3+
OUT3-

OUT5­OUT5+

OUT4+
OUT4­OUT6+
OUT6-

VD

CLAMP

HOME

LOADSW2

CAMCLMP

ELVSNS
EREF

72
79

82
23
91
92

HOME2

HOME
LOADSW2
CAMCLMP

EREFF

CAMOK

21

CAMOK

CAMLOAD

22

CAMLOAD

LOADPHT

89

LOADPHT

LOADSW1

81

LOADSW1

ELVSENS

C

F

CN11

8

FM/AM TUNER UNIT

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

3.2 BLOCK DIAGRAM(2)

21

13

XOUT

X601

VDCNT2

17 23

17

20 74

23 21 22

19

21 22

19

20

LC75804W

IC 901

LCD901

20

14,15

14,1599

CD

EJECT

TAPE

EJECT

VDD

IC 602

S-80835CNUA-B8U

53

12

12

RESET

RESET

RESET

15

XIN

13

XOUT

RESET

75
73

28

BLIGHT

83
82

ENC1+

85

ENC2-

84

ENC2+

65

CONTROLLER

SYSTEM

IC 601(2/2)

KEY

MATRIX

CN804

CN902

VDD

KEYBOARD PCB

ENC2P

ENC2M

ENC1P

pwr

LCDBL

ILLB

cdej

csej

asens

bsens

Q818

Q819

BU

Q816

Q808

KEY CONTROLLER

LCD DRIVER

16

13

10

11

2

VR901

POWER•VOL

VR902

AUDIO CONTROL•TUNE

ENC1-

power

81

18

18

ENC1M

ILLB

101011

11

AVC-LAN BUS DRIVER

UNBALANCE TO BALANCE CONVERTER

IC701

HA12187FP

6

BU

AVC-LAN MUTE

Q801

ISENS

Q805

BSENS

Q806

ASENS

Q807

5

Q812

Q814

4

LAMP

Q802

Q809

Q815

CD9V

AUDIO+B

VDCONT2

SYSPWR

Q865

Q867

IC401

NJM2068MD

TUNER

MIXING AMP

1

IC203

NJM2068MD

67

IC204

NJM2068MD

67

Q864

Q205

sysmute

30
29
21

TX
RX1
RX2

isens

22

IPPW

1
2

8

bsens

TX
RX

isens

IPPW
MUTE

RX

56

LANMUTE

CN351

Q811

Q813

BU

AUDIO +B REGULATOR

CD 9V REGULATOR

BU

Q563(1/2)

Q564(1/2)

Q563(2/2)

Q564(2/2)

AUDIO+B

FMB

AMB

42

AMPW

41

FMPW

FML

CSL

CDL

B

SWVDD

IC202

TC4052BF

IC302

TC4052BF

2

2

3

1

1

4

4

BALANCE TO UNBALANCE CONVERTER

IC303

NJM2068MD

67

IC304

NJM2068MD

67

3

ACC+B

R

L

R

SGND

mute

GND

TX

BU+B

TX

L

CN473

SW2

SW1

TX1

TX1

GND

ADIM

SLD1

CN472

RSR+

RSR-

RSL+

RSL-

rmut

ACC

+B

ILL-

ILL

ANT

AMP

TX-

TX+

mute

R-

R+

L-

L+

GND

SLD

CN801

Q351

Q204

Q305

Q304

IC870

S-812C56AUA-C3K

3

VDD

VDD5V REGULATOR

BU

Q870

1

1

CD9V

UNBALANCE TO BALANCE CONVERTER

SELECTOR

SELECTOR

IC201

NJM2068MD

7

5

5

5

LANL

Q866

52

sysmute@

asens

Q451

Q452

Q453

AMB

FMB

ANT+B

Q645

SWVDD

Q644

55

SWVDD

43

SYSPWR

CONTROLLER

IC 601(1/2)

SYSTEM

FMSD
RDSMUTE
LDET
DI/DO

CE2
CK
CE1
SL

1

FMSD

3

RDSMUTE

19

ldet

32

PDI

11

PDO

33

PCE2

34

pck

93

PCE1

31

SL

MAIN UNIT

A

PD5789A

PD5789A

80

stby

69

mtl

71

CSLOAD

RDT

44

RDT

BU

ADIM

Q721

Q722

57

ADIM

SW5V

ADIM

1
2
6
7

1
2
6
7

ILLCONT

Q903

Q902

Q901

ILLB

ILLB

Q907

Q908

ILLB

Q905

Q906

ILLB

34

CDILLRCDILLG

LCDBL

LCDBL

1
2
6
7

1
2
6
7

ILL1

ILL2

LEFT PCB

L

RIGHT PCB

K

4

4

KST2

KDT1

ENC2P

ENC2M

ENC1P

pwr

ENC1M

ENC2P
ENC2M

ENC1P

pwr

ENC1M

CN904 CN902

CN905CN903

LDO,LCK,LCE,LDI,LRST

Q820

Q882

Q884

BU

SYSPWR

ILLB REGULATOR

ILL-

Q825

SWVDD

ILL-

94

ILL-

sysmute

sysmute@

Q860

Q861

AMPW

FMPW

Q863

BU

SWVDD

SWVDD

Q862

Q497

RSEMT

RSEMT

51

RSEMUTE

Q301

Q302

Q303

6

9

10

INH

B

A

SEL2b

SEL2a

sysmute

Q201

Q202

Q203

6

9

10

INH

B

A

SEL1b

SEL1a

sysmute@

45

SEL1b

46

SEL1a

48

SEL2b

49

SEL2a

53

sysmute

52

sysmute@

2

Q406

AMB

Q405

FMB

NL1

91

NL1

NL2

100

NL2

LOCL

10

LOCL

6

121213

13

BU

LANLP
LANLM

BU

Q822

CREQ

26

currq

ST

2

ST

SDBW

23

SDBW

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

A-a A-b

A-a

A-b

A-b

A-a

Large size

SCH diagram

Guide page

Detailed page

Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".

A-a

A

SYSTEM CONTROLLER

FM/AM TUNER UNIT

C

CN501

I

CN251

B

CN901

A

MAIN UNIT

FX-MG8137ZT/

R022
R022

FX-MG8037ZT/EW

R1
R1

C411
C412

FM(30%,400Hz):-24.9dBs

AM(30%,400Hz):-11.8dBs

CD(1kHz):+3.6dBs

TAPE(1kHz):-7.5dBs

431

5

2

431

52

6

431

52

6

4

3

1

5

2

6

4

3

1

5

2

6

4

3

1

5

2

4

3

1

5

2

5

2

TUNER MUTE

FM DIVERSITY

RDS DECODER

ANTENNA

JACK

22

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

3.3 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

A-b

A

>

350µH

Decimal points for resistor
and capacitor fixed values
are expressed as :

2.2 2R2

0.022 R022

←

←

The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.

Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.

NOTE :

Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.

FX-MG8137ZT/EW

FX-MG8037ZT/EW

FX-MG8137ZT/EW

FX-MG8137ZT/EW

R022
R022

FM: -9.6dBs

AM:-11.5dBs

TAPE: -7.5dBs

CD: +2.3dBs

FM: -3.9dBs
AM: -5.8dBs

TAPE: -1.9dBs

CD:+8.0dBs

4

3

1

5

2

6

4

3

1

5

2

6

4

3

1

5

2

6

431

52

6

4

3

1

5

2

4

3

1

5

2

4

3

1

5

2

4

3

1

5

2

4

3

1

5

2

6

4

3

1

5

2

6

4

3

1

5

2

6

TUNER MIXING AMP

BALANCE TO UNBALANCE

UNBALANCE TO BALANCE

UNBALANCE TO BALANCE

AUDIO SELECTOR

FOR RSA

AUDIO SELECTOR

FOR AMP

SYSTEM MUTE

SYSTEM MUTE

ASENSEBSENSEISENSE

23

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

A-a

A-b
A-a

A-a

A-b

1

2

FM/AM TUNER UNIT

A

MAIN UNIT

FX-MG8137ZT/EW

R022

R022

FX-MG8037ZT/EW

R1

R1

C411

C412

FM(30%,400Hz):-24.9dBs

AM(30%,400Hz):-11.8dBs

4

3

1

5

2

4

3

1

52

6

4

3

1

5

2

6

4

3

1

5

2

4

3

1

5

2

4

3

1

5

2

6

4

3

1

5

2

4

3

1

2

6

TUNER MUTE

FM DIVERSITY

RDS DECODER

TUNER

ANTENNA

JACK

24

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

A-a

A-b
A-a

A-a

A-b

3

4

5 6

SYSTEM CONTROLLER

C

CN501

I

CN251

B

CN901

CD(1kHz):+3.6dBs

TAPE(1kHz):-7.5dBs

4

3

1

52

6

4

3

1

5

2

6

25

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

A-a

A-b

A-b

1

2

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

←

←

Symbol indicates a resistor.

No differentiation is made between chip resistors and

discrete resistors.

NOTE :

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and

discrete capacitors.

FX-MG8137ZT/EW

FX-MG8037ZT/EW

FX-MG8137ZT/EW

FM: -9.6dBs

AM:-11.5dBs

TAPE: -7.5dBs

CD: +2.3dBs

4

1

2

6

4

3

1

5

6

4

3

1

5

2

4

3

1

5

2

4

3

1

5

2

4

3

1

5

2

4

3

152

6

TUNER MIXING AMP

BALANCE TO UNBALANCE

UNBALANCE TO BALANCE

UNBALANCE TO BALANCE

AUDIO SELECTOR

FOR RSA

AUDIO SELECTOR

FOR AMP

SYSTEM MUTE

SYSTEM MUTE

26

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

A-a

A-b

A-b

3

4

5 6

>

350µH

The > mark found on some component parts indicates

the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of

identical designation.

FM: -3.9dBs

AM: -5.8dBs

TAPE: -1.9dBs

CD:+8.0dBs

4

3

1

5

2

6

4

3

152

6

ASENSEBSENSEISENSE

27

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

28

B L

B

KEYBOARD PCB

L

LEFT PCB

A

CN804

SEEK•TRACK

UP

AMFM

DISC TAPE

4321

56

POWER•VOL

SEEK•TRACK

UP

AST

TAPE EJECT TEXT CD EJECT LOAD

AF

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

3.4 KEYBOARD UNIT

29

B K

2SC4116

R998
4R7K

R999

10K

K

RIGHT PCB

KEYBOARD UNIT
Consists of
KEYBOARD PCB
RIGHT PCB
LEFT PCB

1

5

TA PTY

AUDIO

CONTROL•

TUNE

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

C-a

C

D E

F

G H

VR1

ELVSENSE

CCW1023

10K

LOAD1

LOAD2

CAMGEAR MOTOR

M1 CXC1144

LOADING MOTOR

ELEVATION MOTOR

M2 CXC1145

CAMEOK

CAMLOAD

L1

LOAD3

S41

CSN1051

CRG MOTOR
M3 CXC1143

CLAMP
HOME

S2
S1

CSN1057

CSN1057

1

5

12

24

13

SPINDLE

MOTOR

MOTOR DRIVER

CD CONTROL

3+3ch

DRIVER

1K(B)

VCC

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

30

CN11

CN12

1

2

3

4

5

CN14

CN13

GR
BL

CN31

RE
WH

6
7
8
9
5
4
3
2
1

6
7
8
9
5
4
3
2
1

CN42

CN1

1
2
3
4
5

6
7
8

9
10
11
12

13
14

15
16
17

CN41

1
2
3
4
5

6
7
8

9
10
11
12

13
14

15
16
17

F

PCB UNIT

(SIDE)

G

PCB UNIT

H

PCB UNIT
(M2 UNIT)

D

PCB UNIT
(LED)

E

PCB UNIT(LOAD)

PU UNIT(SERVICE)(PX1)

F
T
C

S

SIGNAL LINE
FOCUS SERVO LINE
TRACKING SERVO LINE
CARRIAGE SERVO LINE
SPINDLE SERVO LINE

SL

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

30

1
2
3
4
5
6
7
8

1
2
3

1
2
3
4
5
6
7
8

T
T

T
T

T

T

T
T

T

T

SL

SL

SL

SL

SL

SL

SL

SL

S

C

C

C

C

C

C

C
C

C

C

S

S

S

S

S

S

S

S

C

F

T

F

T

F

T

F

T

T
T
F
F

T

F
F
T

T
F
F
T

SL

F

F

3
2

4

!

7

9

6

0

5

@

)81

: The power supply is shown with the marked box.

30

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

3.5 CD MECHANISM MODULE(GUIDE PAGE)

C-b

C

SHOCK PROOF

MEMORY

CONTROLLER

BUFFER RAM

3.3V-5V CONVERTER

5V-3.3V CONVERTER

MECHANISM CONTROLLER

5V REGULATOR

3.3V REGULATOR

MUTE

A

CN351

C

CONTROL UNIT(G2T)

SL

SL

SL

#

$

%

^

&

(

*

31

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

A-a

C-b
C-a

C-a

C-b

F

G H

1

VR1

ELVSENSE

CCW1023

10K

L1

LOAD3

S41

CSN1051

CRG MOTOR

M3 CXC1143

CLAMP

HOME

S2

S1

CSN1057

CSN1057

1

5

12

24

13

SPINDLE

MOTOR

MOTOR DRIVER

CD CONTROL

3+3ch

DRIVER

1K(B)

VCC

123456789

101112131415161718192021222324252627282930

CN11

CN12

CN14

678954321

678954321

CN42

CN1

123456789

10111213141516

17

CN41

123456789

10111213141516

17

F

PCB UNIT(SIDE)

G

PCB UNIT

H

PCB UNIT

(M2 UNIT)

PU UNIT(SERVICE)(PX1)

123456789

101112131415161718192021222324252627282930

123

4

T

T

T

T

T

T

T

T

T

T

SL

SL

SL

SL

SL

SL

SL

SL

S

C

C

C

C

C

C

S

S

S

S

S

C

F
T

F

T

F

T

TFF

T

TFF

T

SL

F

F

!

7

9

6

0

5

@

)

8

1

32

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

A-a

C-b
C-a

C-a

C-b

D E

2

3

LOAD1

LOAD2

CAMGEAR MOTOR

M1 CXC1144

LOADING MOTOR

ELEVATION MOTOR

M2 CXC1145

CAMEOK

CAMLOAD

3+3ch

DRIVER

30

12345

CN14

CN13

GR

BL

CN31

RE

WH

17

D

PCB UNIT

(LED)

E

PCB UNIT(LOAD)

PU UNIT(SERVICE)(PX1)

30

1234567

8

123

1234567

8

F

T

C

S

SIGNAL LINE

FOCUS SERVO LINE

TRACKING SERVO LINE

CARRIAGE SERVO LINE

SPINDLE SERVO LINE

SL

: The power supply is shown with the marked box.

C

C

C

C

S

S

S

F

F

T

TTF

F

3

2

4

33

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

C-a

C-b

C-b

1

SHOCK PROOF

MEMORY

CONTROLLER

BUFFER RAM

3.3V-5V CONVERTER

5V-3.3V CONVERTER

3.3V REGULATOR

MUTE

A

CN351

C

CONTROL UNIT(G2T)

SL

SL

SL

SL

%

^

&

(

*

34

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

C-a

C-b

C-b

2

3

MECHANISM CONTROLLER

5V REGULATOR

3.3V REGULATOR

#

$

35

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

DECK UNIT

MUTE

HA12216F

11

12

13

14

15

16

17

18

19

20

40

39

38

37

36

35

34

33

32

31

30

292827

26

252423

22

21

1

234

5

678

9

10

R256

180

R287
0R0

C271

1/50

R284 0R0

R283 0R0

R282 0R0

C254 390P

C253 390P

C252 390P

C251 390P

R281 0R0

R255

180

C256

R01

R258

18K

R402

3R3K

R403 910

C272

R1

R288

0R0

R285 0R0

HD1
HEAD ASSY
EXA1594

TEST TAPE
NCT-150
(400Hz, 200nWb/m)

RL

RR

FR

FL

C302

R1

VR302

33K(B)

-8.24dBs(300mV)±1dB

Fwd-R

Fwd-L

Rev-R

Rev-L

NFI(L)
RIN(L)
RIP
FIN(L)
GND
GND
FIN(R)
VREF
RIN(R)
NFI(R)

M-OUT(R)

EQOUT(R)

TAI(R)

BIAS

RAI(R)

PBOUT(R)

DET(L)

MUTE

MSGV(R)

MAOUT

MSI

MSDET

MSGV

F/R

120/70

NR

MOUT(L)

EQOUT(L)

TAI(L)

NC

RAI(L)

PBOUT(L)

NC

DET(L)

MSGV(S)

CN252

CN251

DOLBY B NR

IC251

VR301

33K(B)

C310

R1

C309

R1

R321

0R0

VCC

CCP1280

CCP1280

NC

MSOUT

NC

NC

R260

13K

R262

270K

C401

3900P

R401

15K

R276

100K

C402

R33

C404

R01

C403

R022

R273

0R0

R272

0R0

C40

Q271
2SC4116

R271

18K

C301

R1

R259

13K

C255

R01

R257

18K

R261

270K

A

I

CN353

R292

0R0

R286 0R0

R296

0R0

I

40

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

3.6 CASSETTE MECHANISM MODULE

41

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

SWITCHES:
SENSOR UNIT

S101:LOAD SWITCH..........EJECT-PLAY

S102:MODE SWITCH............ON-OFF

S103:70µs SWITCH...............ON-OFF

The underlined indicates the switch position.

R275

47K

R351 1K

R352 1K

R353 1K

R354 1K

R373 0R0

R355

270K

C352

3900P

R362 300

C351 R22

C353 R01

C354 R01

R374 0R0

C356 R01

C355 R1

D352 1SS355

M1 MOTOR UNIT
(MAIN MOTOR)
EXA1618

M2
MOTOR UNIT
(SUB MOTOR)
EXA1623

RS3

RS2

RS1

SC2

SC1

TAB

MC

CE

VCC2

NC

VCC

MCS

RRS

FRS

RSB

C

TAB

MS2

NC

NC

MM

SM1

RSB
GND
RS

mtl

MCS

load

CN255

CN253

CN254

MECHANISM

DRIVER

IC351 PA2020A

R375 0R0

R404
270K

C405

R033

R277

220K

R278

100K

Q271
2SC4116

SENSOR UNIT

S101

LOAD

ESG1007x3

S102

MODE

Q101
EGN1004

CN256

S103

70µs

J

L101

L102

JI

66

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

6. ADJUSTMENT

6.1 CONNECTION DIAGRAM

GGD1239

GGD1318

Bullet connector
(To DC Regulated Power Supply)

Bullet connector
SP Line

Bullet connector
(To DC Regulated Power Supply)

Bullet connector

(To DC Regulated Power Supply)

FX-MG8037ZT/EW
FX-MG8137ZT/EW

GM-8337ZT/E

H/U

EMV

12P

20P

6P

10P

14P

8P

10P

18P

32P

18P

10P

6P

10P

14P

12P

20P

20P

24P

8P

20P

20P

20P

24P

GGD1317

AUI+

AUI-

FL+FL-

AMP

NAVI ECU

- EMV/NAVI SYSTEM(AMP:P AND M/L)

M/L AMP SYSTEM cannot use GGD1317.
Because, external connector is different from pioneer AMP and
M/L AMP(PIO:24P-20P,M/L:25P-16P).
Moreover, GGD1240 which is a previous jig cannot be used
(Because the signal array is different).
Therefore, when the head unit of the M/L AMP system is
repaired, pioneer AMP system is used.

* P and Pio : Pioneer
* M/L : Mark Levinson

67

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

- STANDARD SYSTEM(AMP:P AND M/L)

GM-8337ZT/E

GGD1317

Bullet connector
(To DC Regulated Power Supply)

Bullet connector
SP Line

H/U

20P

12P

20P

24P

20P

20P

20P

24P

AMP

FX-MG8037ZT/EW
FX-MG8137ZT/EW

M/L AMP SYSTEM cannot use GGD1317.
Because, external connector is different from pioneer AMP and
M/L AMP(PIO:24P-20P,M/L:25P-16P).
Moreover, GGD1240 which is a previous jig cannot be used
(Because the signal array is different).
Therefore, when the head unit of the M/L AMP system is
repaired, pioneer AMP system is used.

* P and Pio : Pioneer
* M/L : Mark Levinson

68

IC601

MAIN UNIT

DC Regulated
Power Supply

BACK UP

ACC

GND

+13.2V

GND

FM/AM TUNER UNIT

DECK UNIT

Extention Cord GGD1121

VR561

VR302

mV
Meter(1)

VR301

L-CH

R-CH

Pin2

Pin3

CN251

DECK UNIT

- Connection Diagram

DOLBY B NR ADJUSTMENT

No. Test Tape Adjustment Point Adjustment Method

(Switch Position)

1 NCT-150 VR301(Lch),VR302(Rch) mV Meter(1) : –8.24dBm(300mV)±1dB

(400Hz,200nwb/m) (DOLBY NR Switch : OFF)

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

6.2 AUDIO, TUNER ADJUSTMENT

97

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

COMMON

SEGMENT

- LCD(CAW1722)

C

O

M

1B

C

O

M

4B

C

O

M

3B

C

O

M

2B

C

O

M

1A

C

O

M

2A

C

O

M

3A

C

O

M

4A

S

E

G

33

S

EG

34

S

E

G

35

S

E

G

36

S

EG

37

S

EG

38

S

E

G

39

S

EG

40

S

E

G

41

S

E

G

42

S

E

G

43

S

E

G

44

S

E

G

45

S

E

G

46

S

E

G

47

S

E

G

48

S

E

G

49

S

E

G

50

S

E

G

51

S

E

G

52

S

E

G

53

S

E

G

54

S

E

G

55

S

E

G

56

SE

G

57

S

E

G

5

8

S

EG

59

S

E

G

6

0

S

EG

61

S

E

G

62

S

E

G

63

S

EG

64

S

EG

65

C

O

M

4B

C

O

M

3B

C

O

M

2

B

C

O

M

1B

S

E

G

17

S

E

G

18

S

E

G

19

S

E

G

20

S

E

G

21

S

E

G

2

2

S

E

G

23

S

EG

24

S

E

G

25

S

E

G

26

S

E

G

27

S

E

G

28

S

E

G

29

S

E

G

30

S

E

G

31

S

E

G

32

S

E

G

1

S

E

G

2

S

E

G

3

S

E

G

4

S

E

G

5

S

E

G

6

S

E

G

7

S

E

G

8

S

E

G

9

S

E

G

10

S

E

G

11

S

E

G

12

S

E

G

13

S

E

G

14

S

E

G

15

S

E

G

16

C

O

M

4A

C

O

M

1A

C

O

M

2A

C

O

M

3A

7.2.2 DISPLAY

98

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

AMPLIFIER

GM-8337ZT/E or

OTHER MAKERS

NAVI

SPEAKER

Except FL

+B, ACC

AVC-LAN

FL

FL(or FR)

AVC-LAN

AVC-LAN

L / R

Video

OTHER MAKERS

FX-MG8037ZT/EW
FX-MG8137ZT/EW

EMV

OTHER MAKERS

AMPLIFIER

GM-8337ZT/E or

OTHER MAKERS

SPEAKER

+B, ACC

AVC-LAN

L / R

FX-MG8037ZT/EW
FX-MG8137ZT/EW

- System 1

- System 2

7.3 EXPLANATION

7.3.1 SYSTEM BLOCK DIAGRAM

99

VCC=5V

Pin 62

Power ON

bsens=L

asens=L

YES

VDD=5V

Pin 16

bsens

Pin 75

asens

Pin 73

SYSPWR←H
Pin 43

IPPW←H
Pin 22

SWVDD←H
Pin 55

Source keys
operative

Completes power-on operation.
(After that, proceed to each source operation)

Source ON

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

7.3.2 OPERATIONAL FLOW CHART

100

1

234

12

34

F

E

D

C

B

A

FX-MG8037ZT/EW

7.4 NOTES ON SERVICING

7.4.1 CLEANING

7.4.2 FACTORY SETTINGS

Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:

Portions to be cleaned Cleaning tools
CD pickup lenses Cleaning liquid : GEM1004

Cleaning paper : GED-008

Portions to be cleaned Cleaning tools
Cassette heads
Pinch rollers Cleaning paper : GED-008
Capstans

- When the Repair is Complete

When the Repair is Complete, make the CD mechanism ready for transportation.

Turning on "Shipment mode"

(to prevent damage during shipment)

-

Remove all discs loaded in this product, before disconnecting the power

supply connector .

-

Set this product to the "Shipment mode" and

-

then disconnect the power supply connector

-

before shipping.

-

Setting the "Shipment mode"

-

Switch ACC OFF, and then, while simultaneously pressing the "SEEK UP" (or "TUNE UP" ) and

-

"DISC"buttons, switch ACC ON.

-

Confirming "Shipment mode" setting

-

During Shipment mode setting the CD loading door indicator flashes.

-

when shipment mode setting is completed, it stays lit.

-

(If the radio unit itself has a display, "SHIP" is indicated.)

-

After disconnecting the power supply connector and removing this product,

-

confirm that you can see a metal plate through the hole near the "SHIP"

-

mark on the rear chassis.

-

Confirm that the door of the CD player is closed.

101

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG8037ZT/EW

8. OPERATIONS

- FX-MG8037ZT/EW

- FX-MG8137ZT/EW

LOAD

LOAD

P3918

P3919

PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2003

K-ZZD. JAN. 2003 Printed in Japan

LOAD

LOAD

LOAD

- RADIO

- CD

MANUAL

TUNING

PRESET CHANNEL MEMORY

PRESET CHANNEL RECALL

AM

CD LOAD

CD EJECT

CD

TRACK

SEARCH

RANDOM PLAY

REPEAT

SEEK

TUNING

FM

- CASSETTE

FF

TAPE

EJECT

REW

CHANGE DIRECTION

DOLBY B NR
REPEAT

AUTO PROGRAM

SEARCH

POWER/

VOLUME

POWER/

VOLUME

POWER/

VOLUME

DISC NUMBER

SEARCH

REV

FF

CD TEXT