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
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