Pioneer FX-MG8606ZT, FX-MG8506ZT, FX-MG8906ZT, FX-MG8806ZT Service Manual

Service

Manual

LS430 AUDIO SYSTEM HEAD UNIT

ORDER NO.

CRT2659

VEHICLE	DESTINATION	PRODUCED AFTER	TOYOTA PART No.	ID No.	PIONEER MODEL No.
LEXUS LS430	EUROPE	August 2001	86120-5A050	P3906	FX-MG8806ZT/EW
LEXUS LS430	EUROPE	August 2001	86120-5A060	P3906	FX-MG8806ZT-91/EW
LEXUS LS430	UNITED KINGDOM	August 2001	86120-5A070	P3907	FX-MG8906ZT/EW
LEXUS LS430	UNITED KINGDOM	August 2001	86120-5A080	P3907	FX-MG8906ZT-91/EW

Manufactured for TOYOTA
by PIONEER CORPORATION	PUB. NO. CRT2659

FX-MG8806ZT,MG8806ZT-91,MG8906ZT,MG8906ZT-91,

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

Model No.	Order No.	Mech. Module	Remarks
FX-MG8506ZT/EW	CRT2548
CX-631	CRT1640	2L	Cassette Mech. Module:Mech.Description, Disassembly
CX-890	CRT2376	G1	CD Mech. Module:Circuit Description, Mech.Description, Disassembly

EXPLODED VIEWS AND PARTS LIST

EXTERIOR(Page 5)

- EXTERIOR SECTION PARTS LIST

Mark No. Symbol and Description			Part No.
		FX-MG8506ZT/EW	FX-MG8806ZT/EW	FX-MG8806ZT-91/EW
3	Screw	BMZ50P080FMC	BMZ50P080FMC	Not used
37	Grille Unit	CXB6893	CXB7567	CXB7567
39	Door	CAT2103	CAT2256	CAT2256
56	86208-50010	CXB6031	CXB6031	Not used
57	86207-50010	CXB6032	CXB6032	Not used

EXTERIOR(Page 8)

- EXTERIOR SECTION PARTS LIST

Mark No. Symbol and Description			Part No.
		FX-MG8606ZT/EW	FX-MG8906ZT/EW	FX-MG8906ZT-91/EW
3	Screw	BMZ50P080FMC	BMZ50P080FMC	Not used
37	Grille Unit	CXB6891	CXB7568	CXB7568
39	Door	CAT2101	CAT2257	CAT2257
56	86208-50010	CXB6031	CXB6031	Not used
57	86207-50010	CXB6032	CXB6032	Not used

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

Description		Part No.
	FX-MG8806ZT-91/EW		FX-MG8906ZT-91/EW
Polyethylene Bag	CEG1026		CEG1026
Carton	CHA4422		CHA4422
Contain Box	CHL4422		CHL4422
Protector	CHP2319		CHP2319
Protector	CHP2320		CHP2320

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

PIONEER ELECTRONICS SERVICE 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 2000

K-ZZD. DEC. 2000 Printed in Japan

Service

Manual

LS430 AUDIO SYSTEM HEAD UNIT

ORDER NO.

CRT2548

VEHICLE	DESTINATION	PRODUCED AFTER	TOYOTA PART No.	ID No.	PIONEER MODEL No.
LEXUS LS430	EUROPE	August 2000	86120-50610	P3900	FX-MG8506ZT/EW
LEXUS LS430	EUROPE	August 2000	86120-50770	P3900	FX-MG8506ZT-91/EW
LEXUS LS430	UNITED KINGDOM	August 2000	86120-50620	P3901	FX-MG8606ZT/EW
LEXUS LS430	UNITED KINGDOM	August 2000	86120-50780	P3901	FX-MG8606ZT-91/EW

Manufactured for TOYOTA
by PIONEER CORPORATION	PUB. NO. CRT2548

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

FX-MG8506ZT/EW

FX-MG8606ZT/EW

ID No.P3900 ID No.P3901

- 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-MG8506ZT-91/EW		FX-MG8606ZT-91/EW
Polyethylene Bag	CEG1026		CEG1026
Carton	CHA4120		CHA4120
Contain Box	CHL4120		CHL4121
Protector(TOP)	CHP2319		CHP2319
Protector(BOTTOM)	CHP2320		CHP2320

CONTENTS

1.	SAFETY INFORMATION ............................................	4	7. GENERAL INFORMATION .......................................		75
2.	EXPLODED VIEWS AND PARTS LIST .......................	5	7.1	DIAGNOSIS .......................................................	75
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...		16		7.1.1 TEST MODE.............................................	75
4.	PCB CONNECTION DIAGRAM ................................	44		7.1.2 DIAGNOSIS MODE .................................	80
5.	ELECTRICAL PARTS LIST ........................................	66		7.1.3 DISASSEMBLY ........................................	84
6.	ADJUSTMENT..........................................................	72		7.1.4 PCB LOCATIONS .....................................	89
				7.1.5 CONNECTOR FUNCTION DESCRIPTION ..	90
			7.2	IC ........................................................................	91
			7.3	EXPLANATION..................................................	96
				7.3.1 SYSTEM BLOCK DIAGRAM ...................	96
				7.3.2 OPERATIONAL FLOW CHART ................	98
			8. OPERATIONS AND SPECIFICATIONS.....................		99

2

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

- CD Player Service Precautions

1.For pickup unit(CXX1313) handling, please refer to"Disassembly"(see page 84).

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 73).

- 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

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FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

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.

1. Safety Precautions for those who Service this Unit.

•When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.

Caution:

1.During repair or tests, minimum distance of 13cm from the focus lens must be kept.

2.During repair or tests, do not view laser beam for 10 seconds or longer.

2.A “CLASS 1 LASER PRODUCT” label is affixed to the bottom of the player.

3.The triangular label is attached to the mechanism unit holder.

CLASS 1

LASER PRODUCT

4. Specifications of Laser Diode

Specifications of laser radiation fields to which human access is possible during service. Wavelength = 800 nanometers

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FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR(FX-MG8506ZT/EW,FX-MG8506ZT-91/EW)

35

NOTE:

Please use the gray part shown in figure above cut-

ting off when you exchange the rubber(CNV5881)

for new parts.

5

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

6

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-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		45	Lighting Conductor	CNV6638
2	Screw	BMZ26P050FMC	46		SW Unit	CWM6872
3	Screw	BMZ50P080FMC	47		Connector(CN905)	CKS4354
	(FX-MG8506ZT/EW)		48		Grille Unit	CXB6927
4	Connector	CDE6172	49		Screw	BPZ20P080FMC
5	Case	CNB2541	50		Door	CAT2151
6	90468-04191	CNC9048	51		Washer	CBF1037
7	Cushion	CNM6917	52		Spring	CBH2339
8	Guide	CNV6044	53		Gear	CNV6116
9	Main Unit	CWM6848	54		Bracket Unit	CXB5254
10	Screw	BMZ30P060FMC	55		Screw	IMS20P030FMC
11	Screw(M3x6)	CBA1393	56		86208-50010	CXB6031
12	Terminal(CN806)	CKF1059			(FX-MG8506ZT/EW)
13	Connector(CN802)	CKM1315	57		86207-50010	CXB6032
14	Connector(CN801)	CKM1322			(FX-MG8506ZT/EW)
15	Plug(CN303)	CKS-291	58		Screw	BMZ20P020FMC
16	Connector(CN301)	CKS3568	59		Screw	BMZ26P030FMC
17	Connector(CN804)	CKS3751	60		Cassette Mechanism Module	EXK3885
18	Connector(CN701)	CKS3930	61		Transistor(Q809,811,812)	2SB1185
19	Holder	CNC8163	62		Screw(M2x2)	CBA1250
20	Screw	BPZ20P080FMC	63		Spring	CBH2361
21	Button(MODE)	CAC5958	64		Spring	CBH2365
22	Button(EJECT)	CAC5960	65		Spring Unit	CXB6850
23	Button(SEEK)	CAC6356	66		Connector	CDE6302
24	Button(CH)	CAC6357	67		Chassis	CNA2131
25	Button(TA)	CAC6351	68		Holder	CNC7477
* 26	Lighting Conductor Unit	CXB6916	69		Holder	CNC7826
27	Holder Unit	CXB6898	70		Holder	CNC8160
28	Lighting Conductor	CNV5683	71		Holder	CNC8161
29	Lighting Conductor Unit	CXB6915	72		Holder	CNC8162
30	Holder	CNV6039	73		Connector(CN803)	CKM1065
31	Lighting Conductor Unit	CXB6899	74		Sheet	CNM5981
32	Keyboard Unit	CWM6860	75		Insulator	CNM7141
33	Connector(CN902)	CKS3751	76		Sheet	CNM6318
34	Connector(CN903)	CKS4354	77		Insulator	CNM6410
35	Rubber	CNV5881	78		Cushion	CNM6927
36	Knob Unit	CXB3551	79		PCB	CNP5399
37	Grille Unit	CXB6893	80		Damper	CNV5120
38	Chassis Unit	CXB3549	81		Holder	CNV5543
39	Door	CAT2103	82		Screw	IMS20P040FMC
40	Spring	CBH2427	83		Mechanism Assy(Service)	CXX1430
41	Screw	BPZ20P080FMC	84		Screw	ISS26P050FMC
42	Button(LOAD)	CAC5968	85		Screw	ISS26P060FMC
43	Button(EJECT)	CAC5969		* 86 Seal		CNM5714
44	Connector	CDE6293	87		Rubber	CNV6596
			88		Spacer	CNM7140
			89		Spacer	CNM7179

7

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

2.2 EXTERIOR(FX-MG8606ZT/EW,FX-MG8606ZT-91/EW)

35

NOTE:

Please use the gray part shown in figure above cut-

ting off when you exchange the rubber(CNV5881)

for new parts.

8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

9

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

- EXTERIOR SECTION PARTS LIST

Mark No. Description		Part No.	Mark No. Description			Part No.
1	Screw	BMZ26P040FMC		45	Lighting Conductor	CNV6638
2	Screw	BMZ26P050FMC	46		SW Unit	CWM6872
3	Screw	BMZ50P080FMC	47		Connector(CN905)	CKS4354
	(FX-MG8606ZT/EW)		48		Grille Unit	CXB6927
4	Connector	CDE6172	49		Screw	BPZ20P080FMC
5	Case	CNB2541	50		Door	CAT2151
6	90468-04191	CNC9048	51		Washer	CBF1037
7	Cushion	CNM6917	52		Spring	CBH2339
8	Guide	CNV6044	53		Gear	CNV6116
9	Main Unit	CWM6849	54		Bracket Unit	CXB5254
10	Screw	BMZ30P060FMC	55		Screw	IMS20P030FMC
11	Screw(M3x6)	CBA1393	56		86208-50010	CXB6031
12	Terminal(CN806)	CKF1059			(FX-MG8606ZT/EW)
13	Connector(CN802)	CKM1315	57		86207-50010	CXB6032
14	Connector(CN801)	CKM1322			(FX-MG8606ZT/EW)
15	Plug(CN303)	CKS-291	58		Screw	BMZ20P020FMC
16	Connector(CN301)	CKS3568	59		Screw	BMZ26P030FMC
17	Connector(CN804)	CKS3751	60		Cassette Mechanism Module	EXK3885
18	Connector(CN701)	CKS3930	61		Transistor(Q809,811,812)	2SB1185
19	Holder	CNC8163	62		Screw(M2x2)	CBA1250
20	Screw	BPZ20P080FMC	63		Spring	CBH2361
21	Button(MODE)	CAC5958	64		Spring	CBH2365
22	Button(TA)	CAC6351	65		Spring Unit	CXB6509
23	Button(CH)	CAC5961	66		Connector	CDE6302
24	Button(SEEK)	CAC5962	67		Chassis	CNA2131
25	Button(EJECT)	CAC5960	68		Holder	CNC7477
* 26	Lighting Conductor Unit	CXB6916	69		Holder	CNC7826
27	Holder Unit	CXB6898	70		Holder	CNC8160
28	Lighting Conductor	CNV5683	71		Holder	CNC8161
29	Lighting Conductor Unit	CXB6915	72		Holder	CNC8162
30	Holder	CNV6039	73		Connector(CN803)	CKM1065
31	Lighting Conductor Unit	CXB6899	74		Sheet	CNM5981
32	Keyboard Unit	CWM6859	75		Insulator	CNM6127
33	Connector(CN902)	CKS3751	76		Sheet	CNM6318
34	Connector(CN903)	CKS4354	77		Insulator	CNM6410
35	Rubber	CNV5881	78		Cushion	CNM6927
36	Knob Unit	CXB3551	79		PCB	CNP5399
37	Grille Unit	CXB6891	80		Damper	CNV5120
38	Chassis Unit	CXB3549	81		Holder	CNV5543
39	Door	CAT2101	82		Screw	IMS20P040FMC
40	Spring	CBH2427	83		Mechanism Assy(Service)	CXX1430
41	Screw	BPZ20P080FMC	84		Screw	ISS26P050FMC
42	Button(EJECT)	CAC5969	85		Screw	ISS26P060FMC
43	Button(LOAD)	CAC5968		* 86 Seal		CNM5714
44	Connector	CDE6293	87		Rubber	CNV6596
			88		Spacer	CNM7140
			89		Spacer	CNM7179

10

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

2.3 CD MECHANISM

11

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-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

12

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

Mark No. Description			Part No.		Mark No. Description			Part No.
	104	Lever Unit	CXB4949	*		154 Motor Unit(M1 Cam Gear)		CXB6929
	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	CXB6928			201	Connector	CDE6302
	152	•••••				202	Screw	CBA1015
*	153 Bracket Unit		CXB5201

13

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

2.4 CASSETTE MECHANISM MODULE

14

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-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

15

1		2		3		4

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM(FX-MG8506ZT/EW)

A

PICKUP UNIT(SERVICE)

E CD CORE UNIT(SERVO UNIT)

G CD CORE UNIT(STS UNIT)

A MAIN 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

B

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

POWE

D MOTOR PCB(B)

F MOTOR PCB(A)

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

36

45

ELVSNS

ELVSNS

1

50

ELVSNS

79

elvsn

ELEVATION

35

44

PVD

SENSE

37

46

MOTOR DRIVER

M

32

41

CG-

3

IC 802

2

CG1

6

45

CG1

62

CG1

CAMGEAR

CG+

6

5

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

C

2

2

CLAMP

CN802

II

H

PCB UNIT(E)

PCB UNIT(B)

VD

VD

8

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

D

4

6

1

8

3

2

Q814

CN253

VDCONT

4

6

1

8

3

2

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

16

1

2

3

4

5

6

7

8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

A

NIT

UNBAL → BAL

ANALOG SW

4

3

Q301

Q307

MIXING

SYS MUTE

IC305

TC74HC4066AF 2

CD MUTE

TAPE MUTE

2

IC301

1

2 IC302

1

2 IC303

1

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

L+

L-

X701

BSENS

6.290MHz

20

Q806

TXM-

bsens

BU

B

53 27

56

28

29

25

ASENS

TXM+

EMPH

XIN

XOUT

26

POWER

CONT

cdmute

19

Q807

MUTE

asens

+B

ACC

FUSE

ILL-

BU

5A

Q825

CN803

79

elvsns

ILL-

94

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

C

4

73

18

53

Q824 Q830

Q828 Q827

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

D

VR902

VR901

S901

POWER-VOL

TUNE

TAPE

EJECT

16

B SW UNIT

C KEYBOARD UNIT

17

5

6

7

8

1		2		3		4

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(FX-MG8506ZT/EW)

Note: When ordering service parts, be sure

PARTS LIST”.

A	Large size	A-a
	A-a A-b SCH diagram

A-a	A-b	Guide page
A-a	A-b	Detailed page

B

to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL

A MAIN UNIT

	TAPE MUTE	MIXING AMP
TAPE 250nwb/m 315Hz : -7.2dBs		TAPE : -4.8dBs
		CD : +2.2dBs

N CN251

CD MUTE

C

CD 0dB 1kHz : +2.1dBs

G CD CORE UNIT(STS UNIT)

MODE

CD CONTROLLER

C KEYBOARD UNIT

ILL2 SELECTOR

CD ILL SELECTOR

D

18 A

1

2

3

4

5

UNBALANCE TO BALANCE CONVERTER

SYSTEM CONTROLLER

6		7		8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

A-b

ANALOG SWITCH

HARD MUTE

BUS DRIVER

	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

>

VDD 5V REGULATOR

A

B

C

RESET

ENC2P

ENC2M

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

D

A 19

5		6		7		8

A

B

C

1	2	3	4
FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91
	1	3	5
	2	4
A-a A-b	TAPE : -4.8dBs CD : +2.2dBs		MODE
	MIXING AMP
	TAPE MUTE
UNIT	7.2dBs	CD MUTE
A MAIN	250nwb/m 315Hz : -
	TAPE

NCN251

CD 0dB 1kHz : +2.1dBs

D

NIT(STSUNIT)

20 A-a

1

2

3

4

5

CD CONTROLLER

GCDCOREUNIT(S

6

7

8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

6	7	8
	ILL1 SE

SELECTOR	A-b
	-Aa	A
ILL2
	CD ILL SELECTOR

B

C KEYBOARD UNIT

C

D

A-a 21

5		6		7		8

D		C		B

b-A 22 1

UNBALANCE TO BALANCE CONVERTER

ANALOG SWITCH

1

2

2

3

3

HARD MUTE

BUS DRIVER

4

5

4

A

	A-a A-b
	NOTE :		32 1 91-91,MG8606ZT,MG8606ZT-MG8506ZT,MG8506ZTFX-
	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

SYSTEM CONTROLLER

VDD 5V REGULATOR

5		6		7		8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

LPF	A-b
	a
	A-
AUDIO 8.5V REGULATOR

A

CD 9V REGULATOR

RESET	REGULATOR
	ILLUMINATION 8V
	ENC2M
	ENC2P

	ILL1 SELECTOR
6	7	8

A-b 23

B

C

D

5

6

7

8

A

B

C

D

1		2		3		4

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

3.3 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(FX-MG8606ZT/EW)

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

PARTS LIST”.

A MAIN UNIT

A-a		TAPE MUTE	MIXING AMP
	TAPE 250nwb/m 315Hz : -7.2dBs		TAPE : -4.8dBs
			CD : +2.2dBs
	N CN251

CD MUTE

CD 0dB 1kHz : +2.1dBs

UNIT(STS UNIT)
GCORECD	CD CONTROLLER

C KEYBOARD UNIT

ILL2 SELECTOR

CD ILL SELECTOR

24 A

1

2

3

4

5

UNBALANCE TO BALANCE CONVERTER

SYSTEM CONTROLLER

6		7		8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

A-b

ANALOG SWITCH

HARD MUTE

BUS DRIVER

	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

>

VDD 5V REGULATOR

A

B

C

RESET

MODE

ENC2P

ENC2M

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

D

A 25

5		6		7		8

A

B

C

1

2

3

4

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

1	3	5
	2	4

A-a A-b	TAPE : -4.8dBs	CD : +2.2dBs
	MIXING AMP
	TAPE MUTE
UNIT	7.2dBs	CD MUTE
A MAIN	250nwb/m 315Hz : -
	TAPE

NCN251

CD 0dB 1kHz : +2.1dBs

D

NIT(STSUNIT)

26 A-a

1

2

3

4

5

CD CONTROLLER

GCDCOREUNIT(S

6

7

8

FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91

6	7	8
	ILL1 SE

SELECTOR	A-b
	-Aa	A
ILL2
	CD ILL SELECTOR

B

C KEYBOARD UNIT

C

D

A-a 27

5		6		7		8

D		C		B

b-A 28 1

UNBALANCE TO BALANCE CONVERTER

ANALOG SWITCH

1

2

2

3

3

HARD MUTE

BUS DRIVER

4

5

4

A

	A-a A-b
	NOTE :		32 1 91-91,MG8606ZT,MG8606ZT-MG8506ZT,MG8506ZTFX-
	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

SYSTEM CONTROLLER

VDD 5V REGULATOR