Pioneer FX-MG8506ZT, FX-MG8006ZT Service Manual

Service

Manual

LS430 AUDIO SYSTEM HEAD UNIT

ORDER NO.

CRT2547

VEHICLE	DESTINATION	PRODUCED AFTER	TOYOTA PART No.	ID No.	PIONEER MODEL No.
LEXUS LS430	U.S.A., CANADA	August 2000	86120-50600	P6810	FX-MG8006ZT/UC
LEXUS LS430	U.S.A., CANADA	August 2000	86120-50760	P6810	FX-MG8006ZT-91/UC
LEXUS LS430	U.S.A., CANADA	August 2000	86120-50590	P6814	FX-MG8506ZT/UC
LEXUS LS430	U.S.A., CANADA	August 2000	86120-50750	P6814	FX-MG8506ZT-91/UC

Manufactured for TOYOTA
by PIONEER CORPORATION	PUB. NO. CRT2547

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

FX-MG8006ZT/UC

FX-MG8506ZT/UC

ID No.P6810 ID No.P6814

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

Model No.	Order No.	Mech. Module	Remarks
CX-631	CRT1640	2L	Cassette Mech. Module:Mech.Description, Disassembly
CX-890	CRT2376	G1	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.

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

Description		Part No.
	FX-MG8006ZT-91/UC		FX-MG8506ZT-91/UC
Polyethylene Bag	CEG1026		CEG1026
Carton	CHA4120		CHA4120
Contain Box	CHL4122		CHL4123
Protector(TOP)	CHP2319		CHP2319
Protector(BOTTOM)	CHP2320		CHP2320

CONTENTS

1.	SAFETY INFORMATION ............................................	3	7. GENERAL INFORMATION .......................................		63
2.	EXPLODED VIEWS AND PARTS LIST .......................	4	7.1	DIAGNOSIS .......................................................	63
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...		12		7.1.1 TEST MODE.............................................	63
4.	PCB CONNECTION DIAGRAM ................................	32		7.1.2 DIAGNOSIS MODE .................................	68
5.	ELECTRICAL PARTS LIST ........................................	54		7.1.3 DISASSEMBLY ........................................	72
6.	ADJUSTMENT..........................................................	60		7.1.4 PCB LOCATIONS .....................................	77
				7.1.5 CONNECTOR FUNCTION DESCRIPTION ..	78
			7.2	IC ........................................................................	79
			7.3	EXPLANATION..................................................	84
				7.3.1 SYSTEM BLOCK DIAGRAM ...................	84
				7.3.2 OPERATIONAL FLOW CHART ................	86
			8. OPERATIONS AND SPECIFICATIONS.....................		87

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FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

- CD Player Service Precautions

1.For pickup unit(CXX1313) handling, please refer to"Disassembly"(see page 72).

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 61).

- When the Repair is Complete

When the repair is complete, make the CD mechanism

ready for transportation

	Bup On, Acc OFF
	SEEK/TRACK UP+
	DISC(CD)+Acc ON
	Disc loading slot illumination : Blinking			The mode is shifting to the transportation mode.
				Shift completion to the transportation mode.
	Disc loading slot illumination : Lighting
	Bup OFF, Acc OFF

1. SAFETY INFORMATION

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.

3

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR

35

NOTE:

Please use the gray part shown in figure above cut-

ting off when you exchange the rubber(CNV5881)

for new parts.

4

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

5

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

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.

-EXTERIOR SECTION PARTS LIST

Mark No. Description		Part No.	Mark No. Description			Part No.
1	Screw	BMZ26P040FMC		44	Connector	CDE6293
2	Screw	BMZ26P050FMC	45		Lighting Conductor	CNV6638
3	Screw	BMZ50P080FMC	46		SW Unit	CWM6872
	(FX-MG8006ZT/UC,FX-MG8506ZT/UC)		47		Connector(CN905)	CKS4354
4	Connector	CDE6172	48		Grille Unit	CXB6927
5	Case	CNB2542	49		Screw	BPZ20P080FMC
6	90468-04191	CNC9048	50		Door	CAT2151
7	Cushion	CNM6917	51		Washer	CBF1037
8	Guide	CNV6044	52		Spring	CBH2339
9	Main Unit	CWM6847	53		Gear	CNV6116
10	Screw	BMZ30P060FMC	54		Bracket Unit	CXB5254
11	Screw(M3x6)	CBA1393	55		Screw	IMS20P030FMC
12	Terminal(CN806)	CKF1059	56		86208-50010	CXB6031
13	Connector(CN802)	CKM1315			(FX-MG8006ZT/UC,FX-MG8506ZT/UC)
14	Connector(CN801)	CKM1322	57		86207-50010	CXB6032
15	Plug(CN303)	CKS-291			(FX-MG8006ZT/UC,FX-MG8506ZT/UC)
16	Connector(CN301)	CKS3568	58		Screw	BMZ20P020FMC
17	Connector(CN804)	CKS3751	59		Screw	BMZ26P030FMC
18	Connector(CN701)	CKS3930	60		Cassette Mechanism Module	EXK3885
19	Holder	CNC8163	61		Transistor(Q809,811,812)	2SB1185
20	Screw	BPZ20P080FMC	62		Screw(M2x2)	CBA1250
21	Button(MODE)	CAC5958	63		Spring	CBH2361
22	Button(EJECT)	CAC5960	64		Spring	CBH2365
23	Button(SEEK)	CAC6356	65		Spring Unit	CXB6850
24	Button(CH)	CAC6357	66		Connector	CDE6302
25	Button(TRAF)	CAC6431	67		Chassis	CNA2131
* 26	Lighting Conductor Unit	CXB6916	68		Holder	CNC7477
27	Holder Unit	CXB6898	69		Holder	CNC7826
28	Lighting Conductor	CNV5683	70		Holder	CNC8160
29	Lighting Conductor Unit	CXB6915	71		Holder	CNC8161
30	Holder	CNV6039	72		Holder	CNC8162
31	Lighting Conductor Unit	CXB6899	73		•••••
32	Keyboard Unit	CWM6860	74		Sheet	CNM5981
33	Connector(CN902)	CKS3751	75		Insulator	CNM7141
34	Connector(CN903)	CKS4354	76		Sheet	CNM6318
35	Rubber	CNV5881	77		Insulator	CNM6410
36	Knob Unit	CXB3551	78		Cushion	CNM6927
37	Grille Unit	CXB6892	79		PCB	CNP5399
	(FX-MG8006ZT/UC,FX-MG8006ZT-91/UC)		80		Damper	CNV5120
	Grille Unit	CXB6894	81		Holder	CNV5543
	(FX-MG8506ZT/UC,FX-MG8506ZT-91/UC)		82		Screw	IMS20P040FMC
38	Chassis Unit	CXB3549	83		Mechanism Assy(Service)	CXX1430
39	Door(FX-MG8006ZT/UC,	CAT2102	84		Screw	ISS26P050FMC
	FX-MG8006ZT-91/UC)		85		Screw	ISS26P060FMC
	Door(FX-MG8506ZT/UC)	CAT2169		* 86 Seal		CNM5714
	FX-MG8506ZT-91/UC)		87		Rubber	CNV6596
40	Spring	CBH2427	88		Spacer	CNM7140
41	Screw	BPZ20P080FMC	89		Spacer	CNM7179
42	Button(LOAD)	CAC5968
43	Button(EJECT)	CAC5969

6

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

2.2 CD MECHANISM

7

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

- CD MECHANISM SECTION PARTS LIST

Mark No. Description		Part No.		Mark No. Description		Part No.
1-9	•••••		57		Cam	CNC8774
10	CD Core Unit(Servo Unit) CWX2421		* 58		Holder	CNC7235
11	Connector(CN101)	CKS2764
12	Connector(CN301)	CKS3966	59		Gear	CNC7236
13	Connector(CN201)	CKS3991	60		Gear	CNC8883
			61		Lever	CNC7243
14	CD Core Unit(STS Unit)	CWX2422	62		Lever	CNC7244
15	Connector(CN701)	CKS3989	63		Lever	CNC7245
16	Connector(CN801)	CKS3989
17	Connector(CN802)	CKS4054	64		Lever	CXB4944
18	Screw	CBA1037	65		Cover	CNC7441
			66		Holder Unit	CXB4946
19	Screw	CBA1041	67		Lever	CNC9088
20	Screw	CBA1076	68		Gear	CNC8140
21	Screw	CBA1250
22	Washer	CBA1512	69		Sheet	CNM6840
23	Screw	CBA1452	70		PCB	CNP5764
			71		PCB	CNP6010
24	Screw	CBA1453	72		Gear	CNR1479
25	Screw	CBA1479	73		Gear	CNR1481
26	Washer	CBF1037
27	Washer	CBF1038	74		Gear	CNR1495
28	Washer	CBF1039	75		Gear	CNR1501
			76		Gear	CNR1502
29	Washer	CBF1064	77		Gear	CNR1540
30	Spring	CBH2007	78		Gear	CNR1541
31	Spring	CBH2271
32	Spring	CBH2274	79		Belt	CNT1080
33	Spring	CBH2014	80		Worm Gear	CNV5046
			81		Gear	CNV5047
34	Spring	CBH2015	82		Gear	CNV5048
35	Spring	CBH2016	83		Gear	CNV5049
36	Spring	CBH2017
37	Spring	CBH2290	84		Holder	CNV5056
38	Spring	CBH2366	85		Pulley	CNV5058
			86		Arm	CNV5061
39	Spring	CBH2064	87		Spacer	CNV5066
40	Spring	CBH2195	88		Arm	CNV5189
41	Spring	CBH2196
42	Spring	CBH2224	89		Cover	CNV5207
43	Spring	CBH2250	90		Cover	CNV5424
			91		Cover	CNV5425
44	Screw	CBA1082	92		Lever	CNV5427
45	Roller	CLA3154	93		Arm	CNV5491
46	Roller	CLA3157
47	Roller	CLA3159	94		Gear	CNV5519
48	Roller	CLA3160	95		Holder	CNV5648
			96		Composite PCB	CNX3327
49	Shaft	CLA3179	97		Composite PCB	CNX2989
50	Spacer	CLA3194	98		Chassis Unit	CXB5940
51	Roller	CLA3248
52	Bush	CLA3353	99		Frame Unit	CXB5806
* 53	Shaft	CLA3469	100		Lever Unit	CXB6026
			101		Arm Unit	CXB2704
54	Shaft	CLA3693	102		Lever Unit	CXB2708
55	Steer	CNC7215	103		Lever Unit	CXB2709
56	Steer	CNC7216

8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

Mark No. Description			Part No.		Mark No. Description			Part No.
	104	Lever Unit	CXB4949	*		154 Motor Unit(M1 Cam Gear)		CXB3174
	105	Arm Unit	CXB2712	*		155 Motor Unit(M3 ELV)		CXB3175
	106	Lever Unit	CXB4948			156	Screw	JFZ20P025FMC
	107	Lever Unit	CXB2714			157	Loading Arm L Assy	CXB3171
	108	Carriage Mechanism Unit(G1)	CXB4941			158	Loading Arm L Assy(Service)CXX1415
	109	Screw	CBA1041			159	Screw	CBA1453
	110	Screw	CBA1250			160	Washer	CBF1038
	111	Screw	CBA1362			161	Loading Arm R Assy(Service)CXX1457
	112	Screw	CBA1471			162	Washer	CBF1074
	113	Washer	CBF1038			163	Spring	CBH2136
	114	Spring	CBH2008	*		164 Arm		CNC7241
	115	Spring	CBH2009	*		165 Arm		CXB4449
	116	Spring	CBH2010			166	Holder	CBL1508
	117	Spring	CBL1335			167	Belt	CNT1079
	118	Roller	CLA3913			168	Holder	CNV5055
*	119 Bracket		CNC7228			169	Pulley	CNV5057
	120	Guide Unit	CXB4417			170	Roller	CNV6209
	121	Cover	CNC7628			171	Guide	CNV5125
	122	Sheet	CNM6414	*		172 Bracket Unit		CXB5937
	123	Sheet	CNM5378			173	Roller Gear Unit	CXB3176
	124	•••••		*		174 Motor Unit(M2 LOAD)		CXB3177
	125	Sheet	CNM5827			175	Screw	JFZ14P020FMC
	126	PCB	CNP4978			176	Loading Arm R Assy	CXB5839
	127	Ball	CNR1189			177	Screw	CBA1453
	128	Bearing	CNR1423			178	Washer	CBF1074
	129	Belt	CNT1079			179	Spring	CBH2136
	130	Holder	CNV5037	*		180 Arm		CNC7242
	131	Guide	CNV5040	*		181 Arm		CXB5822
	132	Clamper	CNV5042			182	Screw	JFZ20P014FMC
	133	Rack	CNV5111			183	Roller	CNV6209
	134	Arm	CNV5579			184	Roller Gear Unit	CXB3176
	135	Holder	CNV5759			185	Guide	CNV5126
*	136 Chassis		CXB6025			186	Switch(S885 MAX DETECT)	CSN1052
	137	Arm Unit	CXB2705			187	LED(D883)	CL202IRXTU
	138	Motor Unit(M4 CARRIAGE) CXB3178				188	Photo-transistor(Q881)	CPT230SCTD
	139	Screw Unit	CXB3179			189	LED(D891,892)	CL202IRXTU
	140	Lever Unit	CXB4450			190	Switch(S887 CLAMP)	CSN1051
	141	Bracket	CNC8584			191	Switch(S886 ELV HOME)	CSN1052
	142	Spacer	CNM6345			192	Bracket Unit	CXB6086
	143	Motor(M5 SPINDLE)	CXM1120			193	Photo-transistor(Q851,852)	CPT230SCTD
	144	Screw	JFZ14P020FZK			194	Resistor(R856)	RS1/8S911J
	145	Washer	YE15FUC			195	Resistor(R857)	RS1/8S821J
	146	Arm Unit	CXB6052			196	Photo-interrupter(Q1)	RPI-221
	147	Arm Unit	CXB6053			197	Screw	CBA1387
	148	Tray Assy	CXB4307			198	Pickup Unit(Service)(P8)	CXX1313
	149	Spring	CBH2269			199	Spring	CBL1467
	150	Sheet	CNM7109			200	Bracket	CNC8902
	151	Cam Motor Assy	CXB5240			201	Connector	CDE6302
	152	•••••				202	Screw	CBA1015
*	153 Bracket Unit		CXB5201

9

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

2.3 CASSETTE MECHANISM MODULE

10

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

Mark No. Description		Part No.		Mark No. Description		Part No.
1	Screw	BSZ20P040FMC	31		Gear	ENV1347
2	Washer	CBF1037	32		Collar	ENV1508
3	Washer	CBF1038	33		Gear	ENV1350
4	Washer	CBG1003	34		Flywheel	ENV1500
5	Deck Unit	EWM1027	35		Worm Gear	ENV1439
6	Screw(M2x5)	EBA1028	36		Worm Wheel	ENV1440
7	Screw(M2x2.5)	EBA1037	37		Gear	ENR1037
8	Spring	EBH1531	38		Lever	ENV1533
9	Spring	EBH1589	39		Arm	ENV1525
10	Connector(CN251)	CKS3540	40		Gathering PCB	ENX1037
11	Spring	EBH1515	41		Gathering PCB	ENX1060
12	Spring	EBH1587	42		Switch(S1)(S2)	ESG1004
13	Spring	EBH1517	43		Motor Unit(M2)(SUB)	EXA1382
14	Spring	EBH1518	44		Chassis Unit	EXA1559
15	Spring	EBH1519	45		Tube	ENM1039
16	Spring	EBH1537	46		Roller	ENR1027
17	Cord	EDD1027	47		Reel Unit	EXA1560
18	Photo-interrupter(EGN2,3)	EGN1006	48		Head Base Unit	EXA1434
19	Photo-interrupter(EGN1)	EGN1005	49		Lever Unit	EXA1578
20	Roller	ENR1031	50		Gear Unit	EXA1545
21	Shaft	ELA1362	51		Frame Unit	EXA1476
22	Roller	ELA1348	52		Lever Unit	EXA1439
23	Arm	ENC1490	53		Head Assy(HD1)	EXA1594
24	Arm	ENC1397	54		Motor Unit(M1)(MAIN)	EXA1499
25	Guide	ENC1519	55		Washer	HBF-179
26	Holder	ENC1516	56		Screw	JGZ20P025FNI
27	Lever	ENC1448	57		Spring	EBH1545
28	Arm	ENC1488	58		Washer	YE20FUC
29	Roller	ENR1023	59		Pinch Roller Unit	EXA1533
30	Belt	ENT1027	60		Pinch Roller Unit	EXA1532
			61		Capacitor(C1)	CEAL4R7M35

11

1		2		3		4

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

E CD CORE UNIT(SERVO UNIT)

A MAIN UNIT

PICKUP UNIT(SERVICE)

G CD CORE UNIT(STS UNIT)

MD

CN101

5

RF AMP

LD+

14

V5

MD

LD

16 PD

CN201

CN801

8fs DF D/A LPF

CN701

CN701

Q301

17

IC 201

LD-

15

LD

IC 101

BCK

IC 601

18

9

Lch

CD MUTE

UPD63702AGF

Q101

UPC2572GS

35

SHOCKPROOF

DATA

AK4321VF

LCH 42

HOLOGRAM

69

EFM

LRCK

5

12 6

CONTROLLER

39

PD

UNIT

WDCK

XTLI

DEMO

DIGITAL SERVO

Q102

RFCK

IC 501

FO+

PROCESSOR

RAOV

Q702

FOCUS ACT

4

LRCK

CXD2511R

TO+

MD/SD/TD/FD

SCKO

TRACKING ACT

3

DIGITAL SIGNAL

DOUT

MCK

XWRE/XRDE/XQOK XWIH/XEMP/ADRMON/CHDT

CD 4CH DRIVER

PROCESSOR

WDSL/CHMO/CHMI

CARRIAGE

14

-COMPUTER

MOTOR

11

INTERFACE

1

16

IC 502

M

IC 301

2

15

MSM514400DP-60TS

BA5986FM

3

XTAL

XTAL

4

VR2

4M DRAM

SPINDLE

22

MOTOR

EC

8

VM

74

10

11

CONT 19

CONT 35

CONT

5

BVD

MUTE

19

19

19

16

BCL

VCC

6

V5

9

EMPH 39

12

EMPH

ST/SR

X201

VM

7

5V

28

28

28

28

5V

GND

5V REGULATOR

10

HOME

29

29

29

29

4

IC 701

11

VD

30

30

30

30

VD

VD

HOME

V+5V

BA05SFP

2

CN301

SWITCH

1

POWER

26

POWER 10

41

POWER

B

D MOTOR PCB(B)

F MOTOR PCB(A)

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

36

45

ELVSNS

ELVSNS

1

50

ELVSNS

79

elvsns

ELEVATION

35

44

PVD

SENSE

37

46

MOTOR DRIVER

CAMGEAR

M

32

41

CG-

3

IC 802

2

CG1

6

45

CG1

62

CG1

CG+

5

6

CG2

CG2

61

M PCB UNIT(D)

K LOAD MOTOR PCB

MOTOR

33

43

LB1836M

7

44

CG2

ELEVATION

M

39

48

EL-

MOTOR DRIVER

V+5V

11

40 CD5V

75

EREF

EL+

3

2

ELV1

47

ELV1

60

Q851

Q852

MOTOR

41

50

4

ELV1

PH1

5

IC 801

6

ELV2

5

46

ELV2

59

ELV2

1

1

3

12

LB1836M

13

LO1

2

49

LO1

58

LO1

2

10

9

LO2

3

48

LO2

57

LO2

LOADING

M

MAXSW

PH3

78

1

47

4

PH3

MOTOR

PH1

PH2

77

3

LD MOTOR-

LO-

PH2 46

5

PH2

2

5

5

5

7

PH1 45

6

PH1

76

PH1

1

PVD

6

6

LD MOTOR+

7

5

LO+

Q801

LOAD

3

3

PVD

3

9

1

PVD

PH1

4

4

PH1

4

8

PVD

VD

1

D891

D892

PH2

PH2

55

2

2

2

10

LOAD

LOAD

39 LOAD

MAXSW

1

1

MAXSW

1

11

Q802

12

ELV HOME

L

PVD

ELHOME

ELHOME

7

ELHOME

4

4

S886

10

2

44

PCB UNIT(A)

D883

PH2

CLAMP

CLAMP

CLAMP

1

1

S887

11

1

43

8

Q881

S883

2

2

CLAMP

CN802

II

PCB UNIT(E)

H

PCB UNIT(B)

VD

VD

8

C

MAX DETECT

SWITCH

9

J PCB UNIT(C)

S802

DOORSW 49

S801

LOADSW 50

S803

MODESW 48

N DECK UNIT

CN252

CN251

CN301

+B

4

4

1

TAPE EQUALIZER

FWD

51

22

IC251

6

LcH

53

3

3

4

HA12216F

TAPE-L

REV

2

17

14

LcH

5

VR301

NR

MTL

VREF

Q271

B.U

VDD REGULATOR

ILL8V REGULATOR

B.U

Q804

Q811

MTL

20

20

VDD

BU

ILL8V

BU

Q351

STBY

Q352

19

18

7

17

Q856

Q813

5

MECHANISM DRIVER

SUB

M

CD9V

Q812

MOTOR

2

IC351

Q809

BU

PA2020A

LOAD

CD9V

BU

SW5V

8

9

1

10

Q854

4

6

1

8

3

2

Q814

CN253

VDCONT

4

6

1

8

3

2

D

AUDIO8.5V

FWD

Q808

SENSE

8.5V

BU

Q817

Q816

REV

Q852

SENSE

70 s

LOAD

MODE

SENSE

SWITCH

SWITCH

SW5V

P REEL PCB

MAIN

M

O PCB UNIT

MOTOR

12

1

2

3

4

5

6

7

8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

NIT

A

UNBAL → BAL

ANALOG SW

4

3

Q301

Q307

MIXING

SYS MUTE

IC305

1 TC74HC4066AF 2

CD MUTE

TAPE MUTE

2

IC301

1

2 IC302

1

2 IC303

1

NJM2068MD

NJM2068MD

NJM2068MD

Q602

Q309

Q303

Q305

BU

+B

ACC

ILL+

ILL-

Q702

Q603

Q833 Q831

TX+

TX-

SW5V

BU

MUTE

Q601

X601

HARD MUTE

SW5V

L+

L-

10.00MHz

15

13

50

47

45

MUTE

Q801

CN801

XOUT

TAPEMUTE

sysmute

51

XIN

swvdd

MUTE

ISENS

23

Q805

RESET

ilsens

X701

BSENS

6.290MHz

20

Q806

bsens

BU

53 27

56

28

29

25

ASENS

EMPH

XIN

XOUT

26

CONT

cdmute

19

Q807

POWER

asens

B

ILL-

79

94

Q825

elvsns

ILL-

AVC-LAN BUS DRIVER

CD CONTROLLER

SYSTEM CONTROLLER

TX

30

1

IC602

6

RX1

29

2 HA12187FP

5

62

CG1

IC701

IC601

RX2

21

8

61

CG2

IPPW

22

PD5575B

PD5556B

RESET

75

RESET

TXS+

TXS-

EREF

reset

1

IC603

2

VDD

12

60

S-80730ANDT

CN802

ELV1

75

59

ELV2

csej

58

LO1

57

LO2

mode

54

78

PH3

ENC1+

55

77

PH2

ENC1-

56

76

PH1

doorsw

modesw

VDCONT

power

88

elhome

loadsw

DCLOSE

LOAD

clamp

ENC2+

87

ENC2-

86

55

6

5

2

17

18

40

13

VDCONT

dload

dssill

illpow

52

ILL

cdej

CDILL

49

4

73

18

53

Q824 Q830

Q828 Q827

C

Q829

Q826

Q822

ILL8V

DCLOSE

DLOAD

Q823

ENC2M

ENC1M

CDEJ

ILL1

CILL

ILL2

ENC2P

PWR

ENC1P

MODE

EJ

CN804

21

23

19

8

17

7

12 10

13

40 38

36

16

20

18

22

33 24

34

29 31

28

1

3

5

25

DCLOSE

CDEJ

DLOAD

VILL1

VCILL

VILM2

ENC2M

ENC2P

PWR

ENC1M

ENC1P

MODE

EJ

CN902

LATOR

BU

CN903

KEY

MATRIX

1

2

3

10

4

10

9

8

1

7

CN905

BU

S924

S922

S923

DCLOSE

CD EJECT LOAD

VR902

VR901

S901

POWER-VOL

TUNE

TAPE

EJECT

16

D

B SW UNIT

C KEYBOARD UNIT

13

5

6

7

8

1		2		3		4
FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91
							A-a
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

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

A

B

C

A MAIN UNIT

			Large size	TAPE 250nwb/m 315Hz : -7.2dBs	TAPE MUTE	MIXING AMP
	A-a	A-b	SCH diagram			TAPE	: -4.8dBs
						CD	: +2.2dBs

			CN251
A-a	A-b	Guide page	N
			CD MUTE
A-a	A-b	Detailed page

	CD 0dB 1kHz : +2.1dBs
		MODE
UNIT(STS UNIT)
GCORECD	CD CONTROLLER	CDEJ
	C KEYBOARD UNIT

ILL2 SELECTOR

CD ILL SELECTOR

D

14 A

1

2

3

4

5

UNBALANCE TO BALANCE CONVERTER

SYSTEM CONTROLLER

6		7		8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

A-b

ANALOG SWITCH

	NOTE :
	Symbol indicates a resistor.	Decimal points for resistor
	No differentiation is made between chip resistors and
		and capacitor fixed values
	discrete resistors.
		are expressed as :
	Symbol indicates a capacitor.	2.2 ←	2R2
	No differentiation is made between chip capacitors and	0.022	←R022
	discrete capacitors.

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.

TAPE : +1.2dBs

HARD MUTE

BUS DRIVER

VDD 5V REGULATOR

DLOAD

A

B

C

RESET

PWR

ENC2P

ENC2M

ILL1 SELECTOR	ILLUMINATION 8V REGULATOR	CD 9V REGULATOR	AUDIO 8.5V REGULATOR	LPF

D

A 15

5		6		7		8

A

B

C

1	2	3	4
FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91
	1	3	5
	2	4
A-b	-4.8dBs +2.2dBs		MODE
A-a	TAPE : CD :
	MIXING AMP
	TAPE MUTE
UNIT	7.2dBs	CD MUTE
A MAIN	250nwb/m 315Hz : -
	TAPE

NCN251

CD 0dB 1kHz : +2.1dBs

D

NIT(STSUNIT)

16 A-a

1

2

3

4

5

CDEJ

CD CONTROLLER

GCDCOREUNIT(S

6

7

8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

6	7	8
	ILL1 SE

SELECTOR	A-b
	-Aa	A
ILL2
	CD ILL SELECTOR

B

C KEYBOARD UNIT

C

D

A-a 17

5		6		7		8

D		C		B

b-A 18 1

UNBALANCE TO BALANCE CONVERTER

ANALOG SWITCH

1

2

2

3

3

HARD MUTE

4	BUS DRIVER
5

4

SYSTEM CONTROLLER

VDD 5V REGULATOR

DLOAD

A

	A-a A-b
	NOTE :		32 1 91-91,MG8506ZT,MG8506ZT-MG8006ZT,MG8006ZTFX-
	Symbol indicates a resistor.	Decimal points for resistor
	No differentiation is made between chip resistors and
		and capacitor fixed values
	discrete resistors.
		are expressed as :
	Symbol indicates a capacitor.
		2.2 ←	2R2
	No differentiation is made between chip capacitors and	0.022	←R022
	discrete capacitors.
	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.
	TAPE : +1.2dBs

4

5	6	7	8
	FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91
		LPF		A-b
				-a	A
				A
		AUDIO 8.5V REGULATOR
		REGULATOR9VCD			B
					C
	RESET	REGULATOR
		ILLUMINATION 8V
	ENC2M
	ENC2P
	PWR
		SELECTORILL1			D
	6	7	8
			A-b	19
5	6	7	8

1		2		3		4

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

3.3 SW UNIT, KEYBOARD UNIT

C KEYBOARD UNIT

A

					TRAF
5	1		5	1	TAPE EJECT
4	3	2	4	3	2

B

C

B SW UNIT

D

20 B C

1

2

3

4

5		6		7		8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

A

CN804

B

A MAIN UNIT

B C 21

C

D

5		6		7		8

1		2		3		4

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

3.4 CD CORE UNIT(SERVO UNIT)

E CD CORE UNIT(SERVO UNIT)

A

PICKUP UNIT (SERVICE)(P8)

B

CD DRIVER

C

D

MOTOR PCB(B)

M4 CARRIAGE

CXB3178

RF AMP/ AUTO POWER CONTROL

DISC INSERT DETECT

D	M5 SPINDLE
	CXM1120

22 D E

1

2

3

4

5		6		7		8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

FOCUS/TRACKING

CARRIAGE/SPINDLE

DIGITAL SERVO

DIGITAL SIGNAL PROCESSOR

D/A CONVERTER

F

A

B

C

D

E 23

5		6		7		8

1		2		3		4

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

3.5 CD CORE UNIT(STS UNIT)

G CD CORE UNIT(STS UNIT)

A

	CORECD UNIT		(SERVOUNIT)
B
		E

SURE TRACK

MEMORY CONTROLLER

+5V REGULATOR

M1 : CXB6929

ELV SENSE

C

Q1 : RPI-221

M3 : CXB3175

MOTOR PCB

F (A)

MOTOR DRIVER

H

D

24 F G

1

2

3

4

5		6		7		8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

A

D/A CONVERTER

OLLER

B

4M DRAM

A? CN701CN???

C

R	MOTOR DRIVER

D

G 25

5		6		7		8

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage

- Waveforms

REFOUT:2.5V

1 RFO

0.5V/div.

0.2µs/div.

1 RFO

0.5V/div.

0.5µs/div.

1 CH1: RFO

1V/div.

0.5ms/div.

Normal mode: play

Test mode

2 CH2: MIRR

5V/div.

Normal mode: The defect part

passes 500µs/div.

REFOUT→

REFOUT→

REFOUT→

REFOUT→

GND →

1 CH1: RFO

1V/div.

3 CH1: FIN

0.5V/div.

3 CH1: FIN

0.5V/div.

0.2s/div.

0.2s/div.

0.5ms/div.

2 CH2: MIRR

5V/div.

5 CH2: FOK

2V/div.

4 CH2: FOP

2V/div.

Test mode: Tracking open

Normal mode: Focus close

Test mode: No disc, Focus close

REFOUT→

REFOUT→

GND →

REFOUT→

REFOUT→

GND →

6 CH1: FEY

0.5V/div.

8 CH1: TEY

0.5V/div.

8 CH1: TEY

0.5V/div.

1ms/div.

0.5ms/div.

0.5ms/div.

7 CH2: XSI

2V/div.

9 CH2: TIN

0.5V/div.

9 CH2: TIN

0.5V/div.

Normal mode: Focus close

Test mode: 32 tracks jump (FWD)

Test mode: Single jump (FWD)

REFOUT→

REFOUT→

REFOUT→

REFOUT→

GND →

REFOUT→

REFOUT→

6 CH1: FEY

0.1V/div.

3 CH1: FIN

0.5V/div.

0 SIN

0.5V/div.

0.1s/div.

20ms/div.

0.5s/div.

3 CH2: FIN

0.2V/div.

0 CH2: SIN

1V/div.

Normal mode: Play

Normal mode: Play

Normal mode: Focus close

REFOUT→

REFOUT→

REFOUT→

REFOUT→

REFOUT→

26

FX-MG8006ZT,MG8006ZT-91,MG8506ZT,MG8506ZT-91

8 CH1: TEY

0.5V/div.

8 CH1: TEY

0.5V/div.

3 CH1: FIN

1V/div.

0.2s/div.

5ms/div.

500µs/div.

6 CH2: FEY

0.1V/div.

! CH2: SD

0.5V/div.

$ CH2: HOLD

5V/div.

Normal mode: AGC after focus close

Normal mode: The defect part passes 800µm

REFOUT→

REFOUT→

REFOUT→

REFOUT→

REFOUT→

REFOUT→

GND →

0 SIN

1V/div.

10ms/div.

1 CH1: RFO

1V/div.

8 CH1: TEY

1V/div.

2ms/div.

500µs/div.

$ CH2: HOLD

5V/div.

# CH2: TEC

1V/div.

Long Search

Normal mode: The defect part passes 800µm

Test mode: Focus close

Tracking open

REFOUT→

REFOUT→

REFOUT→

REFOUT→

REFOUT→

GND →

6 CH1: FEY

0.2V/div.

8 CH1: TEY

0.2V/div.

@ EFM

1V/div.

2µs/div.

1ms/div.

1ms/div.

3 CH2: FIN

0.5V/div.

9 CH2: TIN

0.5V/div.

Normal mode: During AGC

Normal mode: During AGC

Play

REFOUT→

REFOUT→

REFOUT→

REFOUT→

REFOUT→

% Dout

2V/div.

5µs/div.

^ LRCK

2V/div.

10µs/div.

* ADRMON

1V/div.

1s/div.

Play

Normal mode: Starting play

REFOUT→

REFOUT→

GND →

27