Pioneer FXMG-9187-ZT, FXMG-9687-ZT Service manual

ORDER NO.

CRT3108

PUB. NO. CRT3108

AUDIO SYSTEM

HEAD UNIT

Manufactured for TOYOTA
by PIONEER CORPORATION

VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No.
LEXUS LS430 U.S.A., CANADA August 2003 86120-50B60 P6834 FX-MG9187ZT/UC
LEXUS LS430 U.S.A., CANADA August 2003 86120-50B70 P6834 FX-MG9187ZT-91/UC
LEXUS LS430 U.S.A., CANADA August 2003 86120-50B80 P6835 FX-MG9687ZT/UC
LEXUS LS430 U.S.A., CANADA August 2003 86120-50B90 P6835 FX-MG9687ZT-91/UC

LS430

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FX-MG9187ZT/UC

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

P6834 P6835

FX-MG9187ZT/UC FX-MG9687ZT/UC

ID No. P6834 ID No. P6835

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

- 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-890 CRT2376 G1 CD Mech. Module:Circuit Description, Mech.Description, Disassembly

- Supplementary model is identical to the original except for the addition of following items.

Description Part No.

FX-MG9187ZT-91/UC FX-MG9687ZT-91/UC
Polyethylene Bag CEG1174 CEG1174
Carton CHG4422 CHG4422
Contain Box CHL4422 CHL4422
Protector CHP2319 CHP2319
Protector CHP2320 CHP2320

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SAFETY INFORMATION

- CD Player Service Precautions

1. For Pickup Unit(P8)(Service)(CXX1313) handling,
please refer to"Disassembly"(see page 71).
During replacement, handling precautions shall be
taken to prevent an electrostatic discharge(protection
by a short pin).

2. During disassembly, be sure to turn the power off
since an internal IC might be destroyed when a con­nector is plugged or unplugged.

3. Please checking the grating after changing the ser­vice pickup unit(see page 65).

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so
and refer the repair to a qualified service technician.

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[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.

CONTENTS

SAFETY INFORMATION...........................................................................3

1. SPECIFICATIONS......................................................................................5

2. EXPLODED VIEWS AND PARTS LIST......................................................6

2.1 EXTERIOR(1) .......................................................................................6

2.2 EXTERIOR(2) .......................................................................................8

2.3 MECHANISM ASSY(G1)(SERVICE) .................................................10

2.4 CASSETTE MECHANISM MODULE ................................................14

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..................................16

3.1 BLOCK DIAGRAM.............................................................................16

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).......................18

3.3 SW UNIT, KEYBOARD UNIT ............................................................24

3.4 CD CORE UNIT(SERVO UNIT), MOTOR PCB(B).............................26

3.5 CD CORE UNIT(STS UNIT), MOTOR PCB(A)..................................28

3.6 PCB UNIT(A,B,C,D,E), LOAD MOTOR PCB .....................................33

3.7 CASSETTE MECHANISM MODULE ................................................34

4. PCB CONNECTION DIAGRAM...............................................................36

4.1 MAIN UNIT........................................................................................36

4.2 SW UNIT............................................................................................40

4.3 KEYBOARD UNIT..............................................................................41

4.4 CD MECHANISM MODULE..............................................................42

4.5 CASSETTE MECHANISM MODULE ................................................54

5. ELECTRICAL PARTS LIST.......................................................................56

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FX-MG9187ZT/UC

General

Power source.................13.2V DC(10.5V-16.0V allowable)

Grounding system........................................Negative type

Backup current ............................................. 0.3mA or less

Dimensions(Chassis)..............178(W)x100(H)x166(D)mm

(Grille)....................254(W)

x129(H)x47(D)mm

Weight..........................................................................2.7kg

Cassette player

Tape................................Compact cassette tape(C30-C90)

Tape speed ......4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)

Wow and flutter.................................0.2% or less(WRMS)

Crosstalk ........................................................40dB or more

Stereo Separation.........................................30dB or more

S/N .................................................................41dB or more

Distortion.............................................................3% or less

CD player

System ...................................Compact disc audio system

Usable discs ..................................................Compact disc

Signal format .....................Sampling frequency : 44.1kHz

............................. Number of guantization bits : 16;linear

S/N .................................................................80dB or more

Distortion..........................................................0.2% or less

1 SPECIFICATIONS

6. ADJUSTMENT ........................................................................................63

6.1 CONNECTION DIAGRAM.................................................................63

6.2 CASSETTE ADJUSTMENT...............................................................64

6.3 CD ADJUSTMENT ............................................................................65

6.4 SELF-DIAGNOSIS FUNCTION .........................................................68

7. GENERAL INFORMATION......................................................................71

7.1 DIAGNOSIS.......................................................................................71

7.1.1 DISASSEMBLY ........................................................................71

7.1.2 PCB LOCATIONS .....................................................................76

7.1.3 CONNECTOR FUNCTION DESCRIPTION..............................77

7.2 IC ......................................................................................................78

7.3 EXPLANATION ..................................................................................82

7.3.1 SYSTEM BLOCK DIAGRAM ...................................................82

7.3.2 OPERATIONAL FLOW CHART................................................84

7.4 NOTES ON SERVICING....................................................................85

7.4.1 CLEANING...............................................................................85

7.4.2 FACTORY SETTINGS ..............................................................85

8. OPERATIONS ..........................................................................................86

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2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR(1)

NOTE:

Please use the gray part shown in figure above cut­ting off when you exchange the rubber(CNV5881)
for new parts.

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FX-MG9187ZT/UC

Mark No. Description Part No.

1 Screw BMZ26P040FTC
2 Screw BMZ26P050FTC
3 Screw(FX-MG9187ZT/UC,

FX-MG9687ZT/UC) BMZ50P080FTC

4 Case CNB2933

5 Seal CNM5714
6 Spacer CNM7426
7 Label CRW1417
8

86208-50010(FX-MG9187ZT/UC,
FX-MG9687ZT/UC)

CXB6031

9

86207-50010(FX-MG9187ZT/UC,
FX-MG9687ZT/UC)

CXB6032
10 Screw BPZ20P080FTC
11 Button(MODE) CAC5958
12 Button(TAPE EJECT) CAC5960

13 Button(SCAN) CAC7711
14 Button(SEEK) CAC8446
15 Button(CH) CAC8447
16 Lighting Conductor CNV5683
17 Holder CNV6039

18 Lighting Conductor CNV6722
19 Lighting Conductor CNV6723
20 Lighting Conductor CNV7760
21 Keyboard Unit CWM8507
22 Connector(CN902) CKS3751

23 Connector(CN903) CKS4354
24 Rubber CNV5881
25 Holder Unit CXB6898
26

Grille Unit(FX-MG9187ZT/UC) CXB9718
Grille Unit(FM-MG9687ZT/UC) CXB9719

27 Screw BPZ26P100FTC
28 Door(FX-MG9187ZT/UC) CAT2427

Door(FX-MG9687ZT/UC) CAT2428
29 Spring CBH2427
30 Guide CNV6262

31

Cassette Mechanism ModuleEXK4290

32 Screw ISS26P060FTC
33 Knob Unit CXC1629

- EXTERIOR(1) SECTION PARTS LIST

NOTE:

- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

- Screws adjacent to ∇ mark on the product are used for disassembly.

- For the applying amount of lubricants or glue, follow the instructions in this manual.

(In the case of no amount instructions, apply as you think it appropriate.)

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2.2 EXTERIOR(2)

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Mark No. Description Part No. Mark No. Description Part No.

1 Screw BMZ26P050FTC
2 Connector CDE6172
3 90468-04191 CNC9048
4 Cushion CNM6917
5 Guide CNV6044

6 Main Unit CWM8495
7 Screw BMZ30P060FTC
8 Screw(M3x6) CBA1393
9 Terminal(CN806) CKF1059

10 Connector(CN801) CKM1322

11 •••••
12 Connector(CN803) CKM1350

* 13 Plug(CN303) CKS-291

14 Connector(CN301) CKS3568
15 Connector(CN804) CKS3751

16 Connector(CN701) CKS3930
17 Holder CNC8163
18 Screw BPZ20P080FTC
19 Button(CD EJECT) CAC5969
20 Button(LOAD) CAC5968

21 Connector CDE6293
22 Spacer CNM7179
23 Sheet CNM7468
24 Rubber CNV6596
25 Lighting Conductor CNV6638

26 SW Unit CWM9032
27 Connector(CN905) CKS4354
28 Grille Unit CXC1761
29 Door CAT2260
30 Washer CBF1037

31 Spring CBH2506
32 Spring CBH2507
33 Gear CNV6116
34 Bracket Unit CXB7686
35 Screw IMS20P030FTC

* 36 Cam CNV6835

37 Screw ISS26P050FTC
38 Screw ISS26P060FTC
39 Screw BMZ20P020FTC
40 Screw BMZ26P030FTC

41 Screw(M2x2) CBA1250
42 Spring CBH2472
43 Spring CBH2473
44 Spring CBH2478
45 Connector CDE6302

46 Tube CDM1028
47 Chassis CNA2131
48 Holder CNC7477
49 Holder CNC7826
50 Holder CNC8160

51 Holder CNC8162
52 Transistor(Q809,811,812) 2SB1185
53 Holder CNC9560
54 Sheet CNM5981
55 Sheet CNM6318

56 Insulator CNM6410
57 Cusion CNM6927
58 Insulator CNM7141
59 PCB CNP5399
60 Damper CNV5120

61 Holder CNV5543
62 Chassis Unit CXB9067
63 Screw IMS20P040FTC
64

Mechanism Assy(G1)(Srevice) CXX1564

- EXTERIOR(2) SECTION PARTS LIST

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L

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H

M

G

J

:GEM1024
:GEM1035

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1

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2.3 MECHANISM ASSY(G1)(SERVICE)

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1-9 •••••

10 CD Core Unit(Servo Unit) CWX2421
11 Connector(CN101) CKS2764
12 Connector(CN301) CKS3966
13 Connector(CN201) CKS3991

14 CD Core Unit(STS Unit) CWX2422
15 Connector(CN701) CKS3989
16 Connector(CN801) CKS3989
17 Connector(CN802) CKS4054
18 Screw(M2x2.5) CBA1651

19 Screw(M2x2.5) CBA1041
20 Screw(M2x2.5) CBA1624
21 Screw(M2x2) CBA1250
22 Washer CBA1529
23 Screw(M2x2.5) CBA1452

24 Screw(M2x1.9) CBA1453
25 Screw(M2x2) CBA1479
26 Washer CBF1037
27 Washer CBF1038
28 Washer CBF1039

29 Washer CBF1064
30 Spring CBH2007
31 Spring CBH2271
32 Spring CBH2274
33 Spring CBH2014

34 Spring CBH2015
35 Spring CBH2016
36 Spring CBH2017
37 Spring CBH2290
38 Spring CBH2366

39 Spring CBH2064
40 Spring CBH2195
41 Spring CBH2196
42 Spring CBH2224
43 Spring CBH2250

44 Screw(M2x3) CBA1082
45 Roller CLA3154
46 Roller CLA3157
47 Roller CLA3159
48 Roller CLA3160

49 Shaft CLA3179
50 Spacer CLA3194
51 Roller CLA3248
52 Bush CLA3353

* 53 Shaft CLA3469

54 Shaft CLA3693
55 Steer CNC7215
56 Steer CNC7216
57 Cam CNC8774
58 Holder CNC7235

59 Gear CNC7236
60 Gear CNC9512
61 Lever CNC7243
62 Lever CNC7244
63 Lever CNC7245

64 Lever Unit CXB4944
65 Cover CNC7441
66 Holder Unit CXB4946
67 Lever CNC9088
68 Gear CNC8140

69 Sheet CNM6840
70 PCB CNP5764
71 PCB CNP6010
72 Gear CNR1479
73 Gear CNR1481

74 Gear CNR1495
75 Gear CNR1501
76 Gear CNR1502
77 Gear CNR1540
78 Gear CNR1541

79 Belt CNT1080
80 Worm Gear CNV6807
81 Gear CNV5047
82 Gear CNV5048
83 Gear CNV5049

84 Holder CNV5056
85 Pulley CNV5058
86 Arm CNV5061
87 Spacer CNV5066
88 Arm CNV5189

89 Cover CNV5207
90 Cover CNV6808
91 Cover CNV5425
92 Lever CNV5427
93 Arm CNV5491

94 Gear CNV5519
95 Holder CNV5648

* 96 Composite PCB CNX3557

97 Composite PCB CNX2989
98 Chassis Unit CXB5940

99 Frame Unit CXB7801
100 Lever Unit CXB6026
101 Arm Unit CXB7533
102 Lever Unit CXB2708
103 Lever Unit CXB2709

104 Lever Unit CXB4949
105 Arm Unit CXB2712
106 Lever Unit CXB9086
107 Lever Unit CXB2714
108

Carriage Mechanism Unit(G1T) CXB4941

Mark No. Description Part No. Mark No. Description Part No.

- MECHANISM ASSY(G1)(SERVICE) SECTION PARTS LIST

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109 Screw(M2x2.2) CBA1604
110 Screw(M2x2) CBA1250
111 Screw(M2x3.8) CBA1362
112 Screw(M2x2.4) CBA1471
113 Washer CBF1038

114 Spring CBH2008
115 Spring CBH2009
116 Spring CBH2010
117 Spring CBL1335
118 Roller CLA3913

* 119 Bracket CNC7228

120 Guide Unit CXB4417
121 Cover CNC9504
122 Sheet CNM6414
123 Sheet CNM5378

124 Washer CBE1053
125 Sheet CNM5827
126 PCB CNP6164
127 Ball CNR1189
128 Bearing CNR1423

129 Belt CNT1079
130 Holder CNV5037
131 Guide CNV5040
132 Clamper CNV5042
133 Rack CNV5111

134 Arm CNV5579
135 Holder CNV5759
136 Chassis Unit CXB8450
137 Arm Unit CXB2705
138

Motor Unit(M4 CARRIAGE) CXC1389

139 Screw Unit CXB3179
140 Lever Unit CXB4450
141 Bracket CNC8584
142 Spacer CNM6345
143 Motor(M5 SPINDLE) CXM1279

144 Screw JFZ14P020FZK
145 Washer YE15FUC
146 Arm Unit CXB6052
147 Arm Unit CXB6053
148 Tray Assy CXB7656

149 Spring CBH2269
150 Sheet CNM7109
151 Cam Motor Assy CXB7809
152 •••••

* 153 Bracket Unit CXB5201

* 154

Motor Unit(M1 Cam Gear) CXC1395

* 155 Motor Unit(M3 ELV) CXC1386

156 Screw JFZ20P025FTC
157 Loading Arm L Assy CXC1950
158

Load Arm L Assy(Service) CXX1469

159 Screw(M2x1.9) CBA1453
160 Washer CBF1038
161

Load Arm R Assy(Service) CXX1457

162 Washer CBF1074
163 Spring CBH2690

* 164 Arm CNC7241
* 165 Arm CXC1948

166 Holder CBL1508
167 Belt CNT1079
168 Holder CNV5055

169 Pulley CNV5057
170 Roller CNV6209
171 Guide CNV5125

* 172 Bracket Unit CXB5937

173 Roller Gear Unit CXB3176

* 174 Motor Unit(M2 LOAD) CXC1388

175 Screw JFZ14P020FZK
176 Loading Arm R Assy CXC1951
177 Screw(M2x1.9) CBA1453
178 Washer CBF1074

179 Spring CBH2690
* 180 Arm CNC7242
* 181 Arm CXC1949

182 Screw JFZ20P014FTC

183 Roller CNV6209

184 Roller Gear Unit CXB3176

185 Guide CNV5126

186 Switch(S885 MAX) CSN1052

187 LED(D883) CL205IRXTU

188 Photo-transistor(Q881) CPT230SCTD

189 LED(D891,892) CL205IRXTU

190 Switch(S887 CLAMP) CSN1051

191 Switch(S886 ELV HOME) CSN1052

192 Bracket Unit CXB6086

193

Photo-transistor(Q851,852) CPT230SCTD

194 Resistor(R856) RS1/8S911J

195 Resistor(R857) RS1/8S821J

196 Photo-interrupter(Q1) RPI-221

197 Screw(M2x1.4) CBA1687

198 Pickup Unit(P8)(Service) CXX1313

199 Spring CBL1467

200 Bracket CNC8902

201 •••••

202 Screw(M2x4) CBA1015

Mark No. Description Part No.

Mark No. Description Part No.

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2.4 CASSETTE MECHANISM MODULE

For grease application, refer to the service manual for CX-1011 (CRT2406).

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1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw CBA1037

6 Spring EBH1653
7 Spring EBH1642
8 Spring EBH1641
9 Spring EBH1626

10 Spring EBH1627

11 Spring EBH1648
12 Cord EDD1024
13 Photo-reflector(Q101) EGN1004
14 Arm ENC1526
15 Lever EXA1610

16 Lever ENC1543
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1547
20 Gear ENC1535

21 Arm ENC1550
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539

26 Arm ENV1540
27 Gear ENV1569
28 Gear ENV1547
29 Gear ENR1044
30 Worm Wheel ENV1559

31 Lever ENV1551
32 Flywheel ENV1554
33 Gathering PCB ENX1073
34 Switch(S101,S102,S103) ESG1007
35 Deck Unit EWM1031

36 Plug(CN251) CKS3540
37 Gathering PCB ENX1066
38 Motor Unit(M1) EXA1618
39 Motor EXM1035
40 Head Assy(HD1) EXA1594

41 Arm ENC1537
42 Screw JGZ20P025FNI
43 Bracket ENC1559
44 Chassis Unit EXA1636
45 Pinch Holder Unit EXA1608

46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1607
48 Pinch Roller ENV1518
49 Reel Unit EXA1625
50 Head Base Unit EXA1611

51 Lever Unit EXA1587
52 Gear Unit EXA1596
53 Motor Unit(M2) EXA1623
54 Washer HBF-179
55 Spring EBH1537

56 Worm Gear ENV1564
57 Spring EBH1655
58 Lever ENC1548
59 Washer YE15FUC
60 Tube ENM1039

61 Spring EBH1645
62 Spring EBH1545
63 Sensor Unit EWM1041

Mark No. Description Part No. Mark No. Description Part No.

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

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8.5V

BU

60
59
58
57
78
77
76

ELV1
ELV2
LO1
LO2

PH2
PH1

PH3

LOAD

ELHOME
CLAMP

55

6

CG1
CG2

62
61

POWER

26

Q702

Q301
CD MUTE

DOORSW
LOADSW
MODESW

79

ELVSNS

TAPEB

TL

BUS

LOAD

PH1

PH2

PH3

LO2

LO1

ELV2

ELV1

CG2

CG1

elvsns

POWER

CONT
EMPH

VD

Lch

3

1

2

8

7

39

6

5

4

48

49

46

47

44

45

50

41

16
12

42

VD

CD9V

43

9

CN701

BUCD9V

CN301

4

3

20

Q854

Q809

CD9V

BU

VDD

ILL8V

BU

BU

Q817 Q816

VDD REGULATOR

ILL8V REGULATOR

Q811

Q813
Q812

Q814

40

CD5V

EREF

75

VDCONT

IC801

S-812C56AUA-C3K

12

Q834

MAIN UNIT

PICKUP UNIT(SERVICE)

MOTOR PCB(B)

MOTOR PCB(A)

CD CORE UNIT(SERVO UNIT)

PCB UNIT(D)

PCB UNIT(A)

PCB UNIT(C)

PCB UNIT(E)

PCB UNIT(B)

LOAD MOTOR PCB

CD CORE UNIT(STS UNIT)

HOLOGRAM

UNIT

FOCUS ACT

TRACKING ACT

MD
LD+

LD-

LD

MD

FO+
TO+

16
17

V5

Q101

Q102

PD

LD

CN101

IC 101

UPC2572GS

RF AMP

IC 201

UPD63702AGF

DIGITAL SERVO

PROCESSOR

DIGITAL SIGNAL

PROCESSOR

µ-COMPUTER

INTERFACE

35

69

EFM

CD 4CH DRIVER

IC 301

BA5986FM

14
11
16

15

22

BVD

V5

MUTE

9

MD/SD/TD/FD

74

10

11

VR2

XTAL

XTAL

X201

5V

VD

CONT

CN201

CN801

5V

VD

CN301

WDCK
RFCK
RAOV
LRCK
SCKO
DOUT
MCK

IC 501

CXD2511R

SHOCKPROOF

CONTROLLER

BCK
DATA
LRCK

XTLI

39

512

IC 601

AK4321VF

8fs DF D/A LPF

CN701

6

18

DEMO

PD

IC 502

MSM514400DP-60TS

4M DRAM

VD

VD

LCH

WDSL/CHMO/CHMI

XWRE/XRDE/XQOK

XWIH/XEMP/ADRMON/CHDT

V+5V

IC 701

BA05SFP

5V REGULATOR

VM

VD

POWER

CONT
EMPH

4

2

1

XAO/XSTB/XSO/XSI/XSCK/XRST/SCONT

ELVSNS

LOADSW

DOORSW

MODESW

S801

S802

S803

MOTOR DRIVER

IC 802

LB1836M

2
6

3

5

ELVSNS

MOTOR DRIVER

LB1836M

IC 801

2
6

13

9

5

3

12
10

CG1
CG2

CG­CG+

EL-

EL+

ELV1
ELV2

LO1
LO2

MAXSW

PH2
PH1

PVD

LO­LO+

PVD

PVD

Q801

VD

Q802

LOAD

ELHOME

CLAMP

CLAMP

ELHOME

CN802

M

BCL

SPINDLE

MOTOR

CARRIAGE

MOTOR

HOME

SWITCH

EC

VM

VCC

ST/SR

GND

HOME

M

LOADING

MOTOR

M

CAMGEAR

MOTOR

M

ELEVATION

MOTOR

Q851

Q852

D891

D892

PH1

PVD

Q881

D883

PH2

S883

MAX DETECT

SWITCH

PH1

PVD
PH1
PH2

MAXSW

LD MOTOR-

LD MOTOR+

MAXSW

PH2

PH1

PVD

ELV HOME

S886
S887

CLAMP

ELEVATION

SENSE

V+5V

5

14

15

4
3

1
2
3
4

8
5
6

7
10
11

1

1

1

1

2

3

4
1

2

4
1
2

1

1

2

3

5
6
3
4
2
1

5
6
3
4
2
1

5
7
3
4
2
1

7
5
9

8
10
11

10

2

11

1

19

28
29
30

19

28
29
30

45
44

46

42

8
9

35
39

10

1

50

49

48

6
7

11

4
5

2

3
47
46
45

12

44
43

36
35

37

32
33

39
41

41
43

48
50

LOAD

E

F

G

I

19

19

28

28

29

29

30

30

H

I

J

L

K

M

D F

E

G

A

CN251

CN252

CN253

CN255

CN256

CN254

IC251

HA12216F

TAPE EQUALIZER

MECHANISM DRIVER

IC351

PA2020A

Q271

BU

M

SUB

MOTOR

M

MAIN

MOTOR

7

+B

TAPE-L

MTL

MTL

VR302

VREF

6

16

11

12

28

37
39

17
5
2

NR

1

STBY

LOAD

LOAD

SWITCH

MODE
SENSE

1

4

5

2
1

64

1

6

41

DECK UNIT

SENSOR UNIT

SWITCH

70µs

FWD

LcH

REV
LcH

4

3

20

N

O

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

17

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG9187ZT/UC

L+

L-

MUTE

ILL+

ACC
ILL-

TX+

TX-

+B

BU

CN801

ACC

MUTE

CN803

TXM-

TXM+

+B

FUSE

5A

IC701

PD5716B

SYSTEM CONTROLLER

IC601

PD5832A

60
59
58
57
78
77
76

ELV1
ELV2
LO1
LO2

PH2
PH1

PH3

LOAD

modesw

55

6

5

CG1
CG2

62

61

POWER

26

27

53

Q702

56

X701

6.290MHz

X601

10.00MHz

28

29

EMPH

CONT

cdmute

50

TAPEMUTE

MUTE

47

51

sysmute

45

swvdd

XIN

XOUT

15

13

XIN

XOUT

2

17

18

DCLOSE

40

79

loadsw

doorsw

clamp

elhome

elvsns

Q307
TAPE MUTE

SYS MUTE

Q603

Q602 Q309

IC301
NJM2068MD

MIXING

HARD MUTE

SW5V

AVC-LAN BUS DRIVER

RESET

21

IC302
NJM2068MD

21

IC602

HA12187FP

IC603

S-80835CNUA-B8U

16

12

IC303
NJM2068MD

21

IC305

TC74HC4066AF

ANALOG SW

43

12

Q303

Q833 Q837

Q305

Q601

EJ EJ

BU

SW5V

BU

MUTE

Q801

ISENS

Q805

BSENS

Q806

ASENS

Q807

ILL-

Q825

ilsens

23

bsens

20

asens

19

25

8

ILL-

94

TX

30

RX1

29

RX2

21

IPPW

22

reset

12

TUNE

54

ENC1+

55

ENC1-

56

power

88

ENC2+

87

ENC2-

86

illpow

52

CDILL-AB

dssill

44

53

cdej18dload

73

ILL

4

csej

75

VDD

S924

DCLOSE

S923

LOAD

S922

CD EJECT

CN903

CN905

CN902

CN804

7

1

6910

410

521

21

20

KEY

MATRIX

VR901

TUNE

S902

TAPE

EJECT

25

16

TUNE TUNE

5

36

ENC1P ENC1P

3

38

ENC1M ENC1M

1

40

ENC2P

28

13

PWR PWR

29

12

ENC2M

31

10

VILM2 ILL2

34

7

VILAB VILAB

24

17

VILL1 ILL1

33

8

CDEJ CDEJ

26

15

DLOAD DLOAD

18

23

DCLOSE DCLOSE

Q824 Q830

Q829

Q828 Q827

Q826

Q840

Q839

ILL8V

AUDIO8.5V

BU

BU

BU

8.5V

Q852

Q808

EREF

75

BU

L-

L+

UNBAL → BAL

VR902

POWER-VOL

ENC2P

ENC2M

CD CONTROLLER

C

SW5V

RESET

25

VDCONT

13

VDCONT

RESET

Q835

Q836

SW5V

Q823

Q822

ILL8V

CDILL-GR

49

VILGR VILGR

22

19

GREENAMBER

3

8

SW UNIT

KEYBOARD UNIT

B

18

1

234

12

34

F

E

D

C

B

A

FX-MG9187ZT/UC

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

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.

C

CN902

G

CN701

N

CN251

T T

A

C

A

C

TAPE : -7.2dBs

CD : +2.1dBs

C

CD : +2.2dBs
TAPE : -4.8dBs

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

19

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG9187ZT/UC

A-b

A

>

A

MAIN UNIT

A

A

A

A

A

A

C

T

A

: CD SIGNAL

: TAPE SIGNAL

: CD, TAPE SIGNAL

.2dBs

-4.8dBs

CD : +8.2dBs
TAPE : +1.2dBs

RESET

VDD 5V REGULATOR

HARD MUTE

A

20

1

234

12

34

F

E

D

C

B

A

FX-MG9187ZT/UC

A-a

A-b
A-a

A-a

A-b

1

2

G

C

N

CN251

T T

A

C

A

TAPE : -7.2dBs

CD : +2.1dBs

C

CD : +2.2dBs

TAPE : -4.8dBs

21

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG9187ZT/UC

A-a

A-b
A-a

A-a

A-b

3

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.

C

CN902

G

CN701

C

22

1

234

12

34

F

E

D

C

B

A

FX-MG9187ZT/UC

A-a

A-b

A-b

1

2

>

A

MAIN UNIT

A

A

A

A

A

A

C

T

A

: CD SIGNAL

: TAPE SIGNAL

: CD, TAPE SIGNAL

VDD 5V REGULATOR

HARD MUTE

A

23

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG9187ZT/UC

A-a

A-b

A-b

3

A

CD : +8.2dBs

TAPE : +1.2dBs

RESET

24

1

234

12

34

F

E

D

C

B

A

FX-MG9187ZT/UC

B C

ENCODER

SCAN

TAPE

EJECT

SEEK UP

TRACK UP

SEEK DOWN

TRACK DOWN

CH UP

DISC UP

CH DOWN

DISC DOWN

DISC

FM

TAPE

AM-SAT

15

23

4

15

23

4

CD EJECT

LOAD

A

CN804

C

KEYBOARD UNIT

B

SW UNIT

VR901VR902

3.3 SW UNIT, KEYBOARD UNIT

25

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG9187ZT/UC

26

1

234

12

34

F

E

D

C

B

A

FX-MG9187ZT/UC

D

E

M5 SPINDLE
CXM1279

DISC INSERT DETECT

M4 CARRIAGE
CXC1389

MOTOR PCB(B)

PICKUP UNIT

(P8)(SERVICE)

RF AMP/
AUTO POWER
CONTROL

CD DRIVER

CD CORE UNIT(SERVO UNIT)

D

E

3.4 CD CORE UNIT(SERVO UNIT), MOTOR PCB(B)

27

5

6

7

8

F

E

D

C

B

A

5

6

7

8

FX-MG9187ZT/UC

E

FOCUS/TRACKING
CARRIAGE/SPINDLE
DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
D/A CONVERTER

F