Pioneer FX-MG8817ZT, FX-MG8517ZT Service Manual

Service

Manual

ES300 AUDIO SYSTEM HEAD UNIT

ORDER NO.

CRT2680

VEHICLE	DESTINATION	PRODUCED AFTER	TOYOTA PART No.	ID No.	PIONEER MODEL No.
LEXUS ES300	U.S.A., CANADA	July 2001	86120-33510	P6816	FX-MG8517ZT/UC
LEXUS ES300	U.S.A., CANADA	July 2001	86120-33520	P6818	FX-MG8817ZT/UC

Manufactured for TOYOTA
by PIONEER CORPORATION	PUB. NO. CRT2680

FX-MG8517ZT,MG8817ZT

FX-MG8517ZT/UC

FX-MG8817ZT/UC

ID No.P6816

ID No.P6818

- 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
	Display :			The mode is shifting to the transportation mode.
	Disc loading slot illumination : Blinking
	Display : SHIP			Shift completion to the transportation mode.
	Disc loading slot illumination : Lighting
	Bup OFF, Acc OFF

- 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.

2

FX-MG8517ZT,MG8817ZT

CONTENTS

1.	SAFETY INFORMATION ............................................	3	7. GENERAL INFORMATION .......................................		81
2.	EXPLODED VIEWS AND PARTS LIST .......................	4	7.1	DIAGNOSIS .......................................................	81
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...		14		7.1.1 TEST MODE.............................................	81
4.	PCB CONNECTION DIAGRAM ................................	38		7.1.2 SELF-DIAGNOSTIC FUNCTION..............	87
5.	ELECTRICAL PARTS LIST ........................................	64		7.1.3 DISASSEMBLY ........................................	91
6.	ADJUSTMENT..........................................................	75		7.1.4 PCB LOCATIONS .....................................	97
				7.1.5 CONNECTOR FUNCTION DESCRIPTION	..98
			7.2	PARTS ................................................................	99
				7.2.1 IC ..............................................................	99
				7.2.2 DISPLAY.................................................	103
			7.3	EXPLANATION................................................	104
				7.3.1 SYSTEM BLOCK DIAGRAM .................	104
				7.3.2 OPERATIONAL FLOW CHART ..............	105
			8. OPERATIONS AND SPECIFICATIONS...................		106

- CD Player Service Precautions

1.Never attempt to turn on this unit when the CD drive mechanism is upside down. Doing so could cause damage or malfunction to the drive mechanism.

2.For pickup unit(CXX1313) handling, please refer to"Disassembly"(see page 91).

During replacement, handling precautions shall be taken to prevent an electrostatic discharge(protection by a short pin).

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

4.Please checking the grating after changing the service pickup unit(see page 79).

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-MG8517ZT,MG8817ZT

2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR(1/2)

S

C

R

4

FX-MG8517ZT,MG8817ZT

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(1/2) SECTION PARTS LIST

Mark No. Description			Part No.	Mark No. Description				Part No.
	1	90467-10203	CNV5641			40	Screw	BPZ26P080FMC
	2	Seal	CNM7391			41	Button(LOAD)	CAC6781
	3	Seal	CNM7390			42	Button(CD EJECT)	CAC6782
	4	Insulator	CNM7452			43	Button(1)	CAC6783
	5	Insulator	CNM7451			44	Button(2)	CAC6784
	6	Insulator	CNM7453			45	Button(3)	CAC6785
	7	Frame Unit	CXB6322			46	Button(4)	CAC6786
	8	Screw	BMZ30P050FMC			47	Button(SEEK,TRACK)	CAC6787
	9	Screw	IMS26P080FMC			48	Button(RDS,TYPE)	CAC6788
	10	Keyboard Unit	CWM7359			49	Button(TAPE EJECT)	CAC6789
	11	LCD(LCD1804)	CAW1636			50	Button(TRAF)	CAC6790
	12	Holder	CNC9073			51	Button(AM)	CAC6791
	13	Lighting Conductor	CNV6463			52	Button(FM)	CAC6792
	14	Sheet	CNM7067			53	Button(TAPE)	CAC6793
	15	Connector	CNV6465			54	Button(DISC)	CAC6794
	16	Rubber	CNV6449			55	Button(5)	CAC6795
	17	Rubber	CNV6546			56	Button(6)	CAC6799
	18	Rubber	CNV6448			57	Button(SCAN)	CAC6800
	19	Connector(CN1901)	CKS4395			58	Button(MSG)	CAC6801
	20	Connector(CN1902)	CKS4395			59	Door(MG8517ZT)	CAT2189
							Door(MG8817ZT)	CAT2211
	21	Connector(CN1802)	CKS4396
	22	Connector(CN1803)	CKS4396			60	Spring	CBH1371
	23	Connector(CN1801)	CKS4361			61	Holder	CNV6459
	24	Knob Unit	CXB6190			62	Holder	CNV6460
	25	Lighting Conductor	CNV6450			63	Holder	CNV6461
						64	Holder	CNV6462
	26	Holder	CNV6469
	27	Grille Unit(MG8517ZT)	CXB6189			65	Holder	CNV6491
		Grille Unit(MG8817ZT)	CXB6567			66	Holder	CNV6757
	28	Screw	BPZ30P100FMC			67	Holder	CNV6758
	29	Holder Unit	CXB8453			68	Holder	CNV6759
						69	Holder	CNV6760
	30	Door	CAT2190
	31	Washer	CBF1037			70	Holder	CNV6761
	32	Spring	CBH2494	*		71 55413-33020		CNS6678
	33	Screw	IMS20P030FMC	*		72 55412-33220		CNS6679
*	34	Striker	CNV6563			73	Label	CRW1417
						74	Label	CRW1425
*	35	Bracket Unit	CXB6192
*	36	Gear	CNV6466	*		75 Sheet		CNM7624
	37	Case	CNB2607
	38	Screw	BMZ26P030FMC
	39	Grille Assy(MG8517ZT)	CXB8325
		Grille Assy(MG8817ZT)	CXB8328

5

FX-MG8517ZT,MG8817ZT

2.2 EXTERIOR(2/2)

Q

A

B

6

FX-MG8517ZT,MG8817ZT

- EXTERIOR(2/2) SECTION PARTS LIST

Mark No. Description		Part No.	Mark No. Description			Part No.
1	PCB	CNP5516		40	Holder	CNC9092
2	Chassis	CNA2256	41		Terminal(CN800)	CKF1059
3	Damper	CNV5120	42		Plug(CN803)	CKM1221
4	Holder	CNC7477	43		Connector(CN801)	CKM1322
5	Screw(M2x2)	CBA1250	44		Plug(CN300)	CKS-291
6	Insulator	CNM5969	45		Connector(CN301)	CKS3568
7	Sheet	CNM5981	46		Connector(CN804)	CKS4361
8	Sheet	CNM6318	47		Connector(CN303)	CKS4376
9	Screw	BMZ20P020FMC	48		86146-48030(ANT1)	CKX1057
10	Tube	CDM1028	49		86146-48040(ANT2)	CKX1058
11	Spring	CBH2472	50		FM/AM Tuner Unit	CWE1543
12	Spring	CBH2478	51		Holder	CNC6774
13	Spring	CBH2473	52		Transistor(Q809,811)	2SB1185
14	Cushion	CNM7023	53		Transistor(Q809,811)	2SB1185
15	Holder	CNC7826	53		Screw	BMZ26P030FMC
16	Holder	CNV5543
17	Screw	IMS20P040FMC
18	Holder	CNC8701
19	Control Unit	CWM7926
20	Screw	PMB26P060FMC
21	Connector	CDE6509
22	Insulator	CNM7438
23	Screw	IMS26P040FMC
24	Connector	CDE6758
25	Chassis Unit	CXB7767
26	Cassette Mechanism Module	EXK3891
27	Screw	BMZ26P050FMC
28	Screw	BMZ30P050FMC
29	Chassis	CNA2329
30	Connector(CN702)	CKS4376
31	Connector(CN701)	CKS3989
32	Terminal(CN703)	CKF1064
33	Screw(M5x8)	CBA1558
34	Screw	BMZ50P080FMC
35	86211-33180	CNC9644
36	86212-33180	CNC9645
37	Main Unit(MG8517ZT)	CWM7358
	Main Unit(MG8817ZT)	CWM7474
38	Screw	BMZ30P060FMC
39	Screw(M3x6)	CBA1393

7

FX-MG8517ZT,MG8817ZT

2.3 CD MECHANISM

D

F

E

K

G

M

J

L I

H

8

FX-MG8517ZT,MG8817ZT

- CD MECHANISM SECTION PARTS LIST

Mark No. Description			Part No.		Mark No. Description			Part No.
	1-9	•••••				59	Gear	CNC7236
	10	CD Core Unit(Servo Unit) CWX2421				60	Gear	CNC9512
	11	Connector(CN101)	CKS2764			61	Lever	CNC7243
	12	Connector(CN301)	CKS3966			62	Lever	CNC7244
	13	Connector(CN201)	CKS3991			63	Lever	CNC7245
	14	CD Core Unit(STS Unit)	CWX2422			64	Lever	CXB4944
	15	Connector(CN701)	CKS3989			65	Cover	CNC7441
	16	Connector(CN801)	CKS3989			66	Holder Unit	CXB4946
	17	Connector(CN802)	CKS4054			67	Lever	CNC9088
	18	Screw	CBA1037			68	Gear	CNC8140
	19	Screw	CBA1041			69	Sheet	CNM6840
	20	Screw	CBA1076			70	PCB	CNP5764
	21	Screw	CBA1250			71	PCB	CNP6010
	22	Washer	CBA1529			72	Gear	CNR1479
	23	Screw	CBA1452			73	Gear	CNR1481
	24	Screw	CBA1453			74	Gear	CNR1495
	25	Screw	CBA1479			75	Gear	CNR1501
	26	Washer	CBF1037			76	Gear	CNR1502
	27	Washer	CBF1038			77	Gear	CNR1540
	28	Washer	CBF1039			78	Gear	CNR1541
	29	Washer	CBF1064			79	Belt	CNT1080
	30	Spring	CBH2007			80	Worm Gear	CNV6807
	31	Spring	CBH2271			81	Gear	CNV5047
	32	Spring	CBH2274			82	Gear	CNV5048
	33	Spring	CBH2014			83	Gear	CNV5049
	34	Spring	CBH2015			84	Holder	CNV5056
	35	Spring	CBH2016			85	Pulley	CNV5058
	36	Spring	CBH2017			86	Arm	CNV5061
	37	Spring	CBH2290			87	Spacer	CNV5066
	38	Spring	CBH2366			88	Arm	CNV5189
	39	Spring	CBH2064			89	Cover	CNV5207
	40	Spring	CBH2195			90	Cover	CNV6808
	41	Spring	CBH2196			91	Cover	CNV5425
	42	Spring	CBH2224			92	Lever	CNV5427
	43	Spring	CBH2250			93	Arm	CNV5491
	44	Screw	CBA1082			94	Gear	CNV5519
	45	Roller	CLA3154			95	Holder	CNV5648
	46	Roller	CLA3157	*		96	Composite PCB	CNX3558
	47	Roller	CLA3159	*		97	Composite PCB	CNX3502
	48	Roller	CLA3160			98	Chassis Unit	CXB5940
	49	Shaft	CLA3179			99	Frame Unit	CXB7801
	50	Spacer	CLA3194			100	Lever Unit	CXB6026
	51	Roller	CLA3248			101	Arm Unit	CXB7533
	52	Bush	CLA3353			102	Lever Unit	CXB2708
*	53	Shaft	CLA3469			103	Lever Unit	CXB2709
	54	Shaft	CLA3693			104	Lever Unit	CXB4949
	55	Steer	CNC7215			105	Arm Unit	CXB2712
	56	Steer	CNC7216			106	Lever Unit	CXB4948
	57	Cam	CNC8774			107	Lever Unit	CXB2714
*	58	Holder	CNC7235			108	Carriage Mechanism Unit(G1)	CXB4941

9

FX-MG8517ZT,MG8817ZT

Mark No. Description			Part No.		Mark No. Description			Part No.
	109	Screw	CBA1041			159	Screw	CBA1453
	110	Screw	CBA1250			160	Washer	CBF1038
	111	Screw	CBA1362			161	Loading Arm R Assy(Service)CXX1486
	112	Screw	CBA1471			162	Washer	CBF1074
	113	Washer	CBF1038			163	Spring	CBH2136
	114	Spring	CBH2008	*		164	Arm	CNC7241
	115	Spring	CBH2009	*		165	Arm	CXB6911
	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	CNC9504			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	JFZ14P020FZK
	126	PCB	CNP6164			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	CXB6912
	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	CXB7532			186	Switch(S885 MAX DETECT)	CSN1052
	137	Arm Unit	CXB2705			187	LED(D883)	CL205IRXTU
	138	Motor Unit(M4 CARRIAGE) CXB3178				188	Photo-transistor(Q881)	CPT230SCTD
	139	Screw Unit	CXB3179			189	LED(D891,892)	CL205IRXTU
	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	CXB7656			198	Pickup Unit(Service)(P8)	CXX1313
	149	Spring	CBH2269			199	Spring	CBL1467
	150	Sheet	CNM7109	200-202			•••••
	151	Cam Motor Assy	CXB7809			203	Sheet	CNM7025
	152	•••••				204	Inductor(L1,2,801,802)	LCYBR15J1608
*	153 Bracket Unit		CXB5201
*	154 Motor Unit(M1 Cam Gear)		CXB6929
*	155 Motor Unit(M3 ELV)		CXB3175
	156	Screw	JFZ20P025FMC
	157	Loading Arm L Assy	CXB6957
	158	Loading Arm L Assy(Service)CXX1469

10

FX-MG8517ZT,MG8817ZT

11

FX-MG8517ZT,MG8817ZT

2.4 CASSETTE MECHANISM MODULE

O

P

N

12

FX-MG8517ZT,MG8817ZT

- 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	EWM1030	35		Worm Gear	ENV1439
6	Screw(M2x5)	EBA1028	36		Worm Wheel	ENV1440
7	Screw(M2x2.5)	CBA1037	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		PCB	ENP1182
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

13

1		2		3		4

FX-MG8517ZT,MG8817ZT

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A			A MAIN UNIT
					B		FM/AM TUNER UNIT																													AM NOISE CANCELER
								FM FRONT END							FM/AM 1ST IF 10.7MHz																		10			3	IC 553		9
			ANT2													T31 Q31 CF51				CF52					CF53		T51				AMDET						HA12181FP
	SUB ANTENNA							Q3																																Q403
							25
	MAIN ANTENNA		ANT1									41	9	10				14		15	17		30		19	47	1		2
										FM		34
								Q201 Q202												IC 1
										OSC																	IC 2			19	TUL		7
							26					6							PA4026A								PA4024A
								AM RF			AM	38 32 36			23	CF232	25	16	18	43	45		27	31	29	28	7		43	40	FMSD		6											Q401	Q
											OSC																				AMSL 18
																															FMSL 9									Q405(1/2)			Q406	Q405(2/2
																															SW2 28
								FMTV	AMTV				AMIFC										SEEK																						FMM
														VCO			FM+B			AM+B
								19	20				15		17				21		14		12	23			2
																																												ldet
																X201											Q503																AMMUT
																	38			FMB		AMB			Q202								FMSD
															37
								Q501							9	AMIFC	PLL CONTROLLER
			5 SUB		IC 501	NIN 1									4	FMVCO						14							RBDS DECODER						3	IC251		1	57K
			6															IC 201			LOCL					VDD						18			2	NJM2903M
				LA1061M											5	AMVCO						16					COMP		20	IC 252
																		PM2007A			seek
			MAIN		13 DIVERSITY										29															PM4006B
																AMTV
															25
																FMTV
						FMSD
								COMP																			COMP
	PICKUP UNIT(SERVICE)																			G														Q CONTROL UNIT
			MD	5	CN101			RF AMP
			LD+
				14	V5
B						16 PD
	MD	LD														CN201																									CN702			CN303
			LD-	15		17		LD				IC 201																		18										CDL
								IC 101			UPD63702AGF																				LCH 42			9									22	1
					Q101			UPC2572GS	35	69
											EFM
	HOLOGRAM																												6
																														PD
	UNIT
																WDCK													DEMO
											DIGITAL SERVO
								Q102								RFCK													VD		VD			VD
	FOCUS ACT		FO+								PROCESSOR					RAOV																	8	43									4	19	CD
			TO+	4												LRCK																	9	42 VD									5	18
	TRACKING ACT			3						MD/SD/TD/FD						SCKO
											DIGITAL SIGNAL					DOUT																											6	17
																MCK												XWIH/XEMP/ADRMON/CHDT															7	16
											PROCESSOR
								CD 4CH DRIVER																			WDSL/CHMO/CHMI XWRE/XRDE/XQOK
																																								1
	CARRIAGE					14						-COMPUTER																												VDIN
																																										13
	MOTOR					11						INTERFACE																								Q701				VDCONT			18	5	VDCO
				1		16																	IC 502														72
	M							IC 301																										VDD				VREF
				2		15																	MSM514400DP-60TS
				3				BA5986FM				XTAL		XTAL
	SPINDLE			4							VR2												4M DRAM														69
						22																																adena
	MOTOR		EC	8
			VM								74	10		11		CONT															CONT 35						27
				5	BVD			MUTE									19	19	19	19														16				CONT				56
																																								cdmute			10	13
	BCL		VCC	6	V5			9				X201													VM						EMPH	39		12			53	EMPH
			ST/SR	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	V+5V					VD
	HOME																								BA05SFP		2													reset 25
					CN301
	SWITCH																								1						POWER 10			41			26	POWER					11	12	RE

D

E

CD CORE UNIT(SERVO UNIT)

D

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

MOTOR PCB(B)

36

45

ELVSNS

ELVSNS 1

50

ELVSNS

79

ELVSNS

CD

MOTOR PCB(A) F

ELEVATION

35

44

PVD

S801

LOADSW 50

1

LOADSW

17

CONTROLLER

loadsw

SENSE

37

46

S802

DOORSW 49

2

DOORSW

2

doorsw

IC 701

MOTOR DRIVER

S803

MODESW 48

3

MODESW

18

modesw

PD5715A

	PCB UNIT(D)		LOAD MOTOR PCB			CAMGEAR			M		32	41	CG-	3	IC 802		2					CG1	6	45	CG1	62	CG1
											33	43	CG+	5			6					CG2			CG2	61	CG2
	M		K				MOTOR								LB1836M								7	44
C													EL-	MOTOR DRIVER							V+5V		11	40	G15V	75	EREF	15
						ELEVATION			M		39	48														60	bsen		15	8	b
													EL+	3			2					ELV1			ELV1
	Q851	Q852				MOTOR					41	50											4	47			ELV1
				PH1										5	IC 801		6					ELV2	5	46	ELV2	59	ELV2
			1		3
		1												12	LB1836M		13					LO1	2	49	LO1	58	LO1
			LOADING	M	2									10			9					LO2	3	48	LO2	57	LO2
					1																	MAXSW 47		4	PH3	78	PH3
			MOTOR			PH1
																						PH2 46			PH2	77
						3				LD MOTOR-			LO-											5			PH2
						2	5	5			5	7										PH1 45		6	PH1	76	PH1
						1	6	6		LD MOTOR+	7	5	LO+					Q801								29	XOUT
		1				PVD	3	3		PVD	3	9		PVD
						PH1	4	4		PH1	4	8			PVD				VD							X701
	D891	D892				1																				28
						PH2	2	2		PH2	2	10							LOAD								XIN
						MAXSW	1	1		MAXSW	1	11					Q802					LOAD 12		39	LOAD	55	CDLOADLOAD
	L			PVD						ELV HOME			ELHOME									ELHOME 44			ELHOME	6	elhome
				PH2	4	4				S886	10	2												7
			D883		1	1				S887	11	1	CLAMP									CLAMP 43		8	CLAMP	5	clamp
																												40
			Q881	S883	2	2				CLAMP			CN802														DCLOSE		19	4
	PCB UNIT(A)
						I		H		PCB UNIT(B)
				MAX
				SWITCH						FWD			CN252		EQ.AMP/DOLBY B NR							CN251
						PCB UNIT(E)
			J PCB UNIT(C)							LCH		1													CN301
														51				IC 251			22
																							4	4		8R5V				TL
														53							6				Lch
																	HA12216F						3	3
															56	2	17	19
												4
										REV		5		BU				PLAY
																					MTL	BU
										LCH								Q271
								DECK UNIT N															20	20		BU
															Q352
															Q351
														19	18			7	17			STBY
										SUB				5			IC 351
											M			2
										MOTOR							PA2020A					LOAD
								P REEL UNIT						8	9			10	1			CN253
D														4	6			8	1	3		2
														4	6			8	1	3		2
										FWD SENSE
																MODE SENSE				70	S	LOAD
										REV SENSE														O PCB UNIT
										MAIN	M
										MOTOR
	14
		1						2											3								4

5		6		7		8

FX-MG8517ZT,MG8817ZT

A

BALANCE TO UNBALANCE CONVERTER

ANALOG SWITCH

ANALOG SWITCH

MIXING AMP

SYSTEM MUTE

1

IC 401 2

TUNL

2

IC301

1

2

IC302

1

2

IC303

TC7W66F

NJM2068MD

NJM2068MD

NJM2068MD

Q401

Q402

7

Q407

8R5V

TL

Q307(2/2)

Q305

Q303

Q405(2/2)

CDL

SW5V

FMMUT

Q307(1/2) Q308

BU

ldet

Q861

HARD MUTE

TUNB

8R5V

RDS MUTE

AVC-LAN MUTE

Q801

Q603

MUTE

Q862

VDD

FMB

ISENS

ilsens

Q805

Q864(1/2)

BSENS

bsens

Q806

Q863

ASENS

AMB

Q807

asens

Q864(2/2)

ILL-

ILL-

Q825

CN303

1

AVC-LAN BUS DRIVER

Q702

TX

1

IC602

6

SW5V

Q301

RX

2 HA12187FP

5

19

CD9V

CD MUTE

IPPW

8

18

17

16

1

90

65

63

44

67

SL FMSD

RDSMT

ANSW AMPW

5

VDCONT

FMMUT

FMPW

43

19

ldet

sysmute

53

66 AMMUT

bsen

bsens

75

25

57K

73

asens

23

13

ilsens

ILL-

94

30

TX

29

TAPE MUTE

15

XIN

RX1

RX

RX2

21

12

RESET

Q607

X601

22

IPPW

SW5V

13

51

Q304

XOUT

MUTE

50

TAPMUTE

SYSTEM

Q832

CONTROLLER

IC 601

CILL2

86

PD5610B

4

Q833

LAMP

ILL

61

CDILL

49

BLIGHT

97

Q931

VDD

8

bsen

RESET

Q822

1	IC 603	2		BLSW	11	Q834	SW5V
			VDD
RESET	S-80730ANDT

		SYSPW	52	Q831			VDD							LCD BACK LIGHT
												Q823
12														REGULATOR
															BU
												Q820		Q819
RESET		mode	57
		ENC2-	59
		ENC2+	58
		power	54
		ENC1-	56											Q818
		ENC1+	55											Q829
CN804	cdej	csej		ECN1P ECN1M	PWR	ECN2P	ECN2M MODE		SYSPWR	CDILL2	CDILL1	LCDBL	BLSW	ILL
	20	74
4
14	15	23		18 19	17	21 22		20	11	28	9	13	12	Q830
														6 7 8

4	3
IC305
1 1 TC74HC4066AF 2
	+B	ACC
	BU
	ILL+	ILL-
	TX+	TX-
	MUTE
	L+	L-
		CN801
	L+	L-
BU		TXM-
		TXM+
	MUTE
	+B	ACC
BU	FUSE
	5A	CN803

	Q804
VDD5		BU
		8R5V
Q811
			BU
VDCONT	Q809	SW5V	Q808
CD9V		8R5V
Q813
	Q815		Q802

CD 9V REGULATOR AUDIO +B REGULATOR

	14	15	23	18 19	17	21 22		20		11	28	9	13	12			6 7 8
	CN1802												Q1803
	DCLOSE	CDEJ	CSEJ											Q1804
	IC 901
LCD901	LC75804W			ILL
	KEY CONTROLLER			SYSILL
										Q1801
	LCD DRIVER
																ILL
											SYSPW
	KEY							ILL		Q1802
	MATRIX
C KEYBOARD PCB		CN1803			ILL	ECN1P	ECN1M	PWR		CN1802				SYSILL	ECN2P	ECN2M	MODE
					6	2		3	1					6	2	3	1
					6	2		3	1					6	2	3	1
			CN1902								CN1901

KEY	KEY
MATRIX	MATRIX

LEFT PCB S	PWR VOL	AUDIO TONE R RIGHT PCB
	VR901	VR902
			15
5	6	7	8

B

C

D

1			2		3		4
FX-MG8517ZT,MG8817ZT
								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		Large size
	A-b	SCH diagram
A-a		A MAIN UNIT
		MAIN SUB
		ANTENNA ANTENNA
A-a	A-b	Guide page
A-a	A-b	Detailed page

FM DIVERSITY

B

4 1

2

5

3 6

AMFM

FM AM

C

		FM	: -46.9dBs
B FM/AM TUNER UNIT		AM	: -18.6dBs
	FM 30% 400Hz : -26.9dBs	CD	: +1.8dBs	AM	: -18.6dBs
	AM 30% 400Hz : -16.0dBs	TAPE : -8.24dBs
				FM	: -17.0dBs
				CD	: +3.3dBs
				TAPE : -4.1dBs

		2	2	2
			3	3
AM	FM	4	4	4
			5	5
		1	1	1

SYSTEM MUTE

AM	FM	3
	TAPE MUTE		2
			1
	AM FM
	CD MUTE	4	5
	AM
	FM		6

LOOP FILTER

TUNER CONTROLLER

1 4

5

2

6 3

AM

AMFM

FM

AMFM

AM NOISE CANCELER

AM

AM

RBDS DECODER

C CN1801

FM AM

AM FM	AM	AM	AM
	AM	AM	AM
	AM
	AM	AM	AM
	FM	FM	FM

4	1
2		3	6
		5	2	2		2
		2	5
3	6		3		3	3
		4	1
			4	4		4
			5		5	5
			1	1		1

TUNER MUTE

AM

AM

AM

ANALOG SWITCH

3

2

1

4

5

6

D

CD : +2.1dBs

TAPE : -7.2dBs

Q

CN702

N

CN2

16 A

1		2		3		4

5

BALANCE TO UNBALANCE CONVERTER

AUDIO 4V

3

4.17V

5

BACK UP MUTE

6		7		8

FX-MG8517ZT,MG8817ZT

A-b

A

NOTE :

Symbol indicates a resistor.

No differentiation is made between chip resistors and discrete resistors.

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and discrete capacitors.

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.

>

FM : -12.0dBs

AM : -13.6dBs

CD : +8.3dBs

TAPE : +0.9dBs

AVC LAN

MUTE

5V REGULATOR

5.01V

SYSTEM CONTROLLER

ILLUMINATION DIMMER CONTROL

ILL SENSE

4.97V

RESET

BU SENSE	ACC SENSE
4.90V	4.94V

			5.93V		8.98V (CD MODE)	8.70V
			5.81V
8.21V
					4		4
					2		2
					1
					3		1
					5	5	3
1	4				6
			1	4			6
5	2	4.97V
			5	2	3.61V
6	3		6	3
					CD 9V REGULATOR	AUDIO 8.5V REGULATOR
LCD BACK LIGHT REGULATOR			ILLUMINATION REGULATOR

51

B

C

D

A 17

5		6		7		8

			18	D
				A MAIN UNIT
	1		a-A
				MAIN SUB
				ANTENNA ANTENNA

2

FM DIVERSITY

3

4 1

2

5

3 6

4

AMFM

FM AM

C

B FM/AM TUNER UNIT

FM 30% 400Hz : -26.9dBs

AM 30% 400Hz : -16.0dBs

B

FM : -46.9dBs AM : -18.6dBs CD : +1.8dBs TAPE : -8.24dBs

		2	2
		3	3
AM	FM	4	4
		5	5
		1	1

A

A-a A-b

FM : -17.0dBs

AM : -18.6dBs

CD : +3.3dBs

TAPE : -4.1dBs

2

3

4

5

1

SYSTEM MUTE

AM	FM		3
		TAPE MUTE		2
				1
	AM FM
	CD MUTE		4	5
	AM
	FM			6

LOOP FILTER

TUNER CONTROLLER

1 4

5

2

6 3

AM

AMFM

FM

AMFM

1	1 MG8517ZT,MG8817ZT-FX
2
	2
3

BAC

4

3

5

4

AM NOISE CANCELER

AM NOISE CANCELER

5

6

7

8

FX-MG8517ZT,MG8817ZT

6

7

8

9

10

	CN251
			A-b
	N			A
			a
			A-

TAPE : -7.2dBs

			5
			1
			2	6
		3	4	+2.1dBs
	AM	SWITCHANALOG		:
				CD	B
AM	AM
	AM
	AM
	AM

	AM	FM		3	5	CN702
		AM	2	4	1	Q
				3	5
			2	4	1
AM	AM		2	4	1

				3	5	MUTE	C
				2 5		TUNER
DECODER	AM	FM	3 6		4 1
RBDS

				5
			1	6
			4	3
AM	AM	AM	FM	2
		AM

AM FM

AM FM

D

CCN1801

A-a 19

5		6		7		8

	D	C	B
	20
1	b-A		NOTE :
			Symbol indicates a resistor.
			No differentiation is made between chip resistors and
		BALANCE TO UNBALANCE CONVERTER	discrete resistors.
			Symbol indicates a capacitor.
			No differentiation is made between chip capacitors and
			discrete capacitors.
	1	AUDIO 4V
	3
	2	4.17V
	5
2

3

E

BACK UP MUTE

4

3

5

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

2.2	←	2R2
0.022		←R022

AVC LAN

MUTE

4

5V REGULATOR

5.01V

A

A-a A-b

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 : -12.0dBs

AM : -13.6dBs

CD : +8.3dBs

TAPE : +0.9dBs

2 1 MG8517ZT,MG8817ZT-FX

3

4

SYSTEM CONTROLLER

	ILLUMINATION DIMMER CONTROL
	ILL SENSE
	4.97V
5	5
	RESET

BU SENSE	ACC SENSE
4.90V	4.94V

6

6

7

8

9

7

10

8	b-A
	251
	21

			5.93V		8.98V (CD MODE)	8.70V
			5.81V
8.21V
					4		4
					2		2
					1
					3		1
					5	5	3
1	4				6
		4.97V	1	4			6
5	2				3.61V
			5	2
6	3		6	3
					CD 9V REGULATOR	AUDIO 8.5V REGULATOR
LCD BACK LIGHT REGULATOR			ILLUMINATION REGULATOR

A-a A-b

D		C		B		A

6

8 7 MG8517ZT,MG8817ZT-FX

1		2		3		4

FX-MG8517ZT,MG8817ZT

3.3 FM/AM TUNER UNIT

A	B FM/AM TUNER UNIT								A
AM	FM
		FM FRONT END
			AM OSC
			FM						AM
B		FM				FM OSC
FM	FM	FM	FM						AM
			FM
			FM					AM	AM
C
	AM RF		FM,AM	FM,AM
			AM			FM	AM FM	AM	FM
						FM,AM
AM		AM		FM,AM	FM,AM	FM,AM
		AM
									FM
AM
D
22	B		3			4
	1	2

	5	6	7	8
				FX-MG8517ZT,MG8817ZT
				A
	AM		FM,AM
AM	AM
	AM			B
		AM
				FM,AM
	PNS
				C
				FM
				FM
	FM	FM
M	FM
	FM IF
				D
				B 23
	5	6	7	8

1		2		3		4

FX-MG8517ZT,MG8817ZT

3.4 KEYBOARD UNIT

A	C KEYBOARD PCB
		LOAD
	KEYBOARD UNIT
	Consists of	DCLOSE TAPE
	KEYBOARD PCB	EJECT
	RIGHT PCB
	LEFT PCB	TRAF

CD EJECT

B

LCD DRIVER AND KEY CONTROLLER

C

NC NC NC	NC	NC NC NC NC NC NC NC																																																																																NC	NC	NC	NC NC NC NC NC NC NC NC
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	31	32	33	34 35	36	37	38	39	40	41	42	43	44	45	46	47	48	49	50	51	52	53 54	55	56	57	58	59	60	61	62	63	64	65	66	67	68 69	70	71	72	73	74	75	76	77	78	79	80	81	82 83	84	85	86	87	88	89	90	91	92	93	94	95	96	97	98	99	100	101	102

LCD1804 : CAW1636

D

24 C

1		2		3		4

AM

FM

5

		1	5
		2	6
AM	TAPE	3	SCAN
FM	DISC	4	MSG

6		7

R RIGHT PCB

5 1

3

4

5.0V

6.0V

8.1V

A CN804

S LEFT PCB

5 1

3

4

8

FX-MG8517ZT,MG8817ZT

A

TUNE/

AUDIO CONTROL

2

RDS

TYPE

B

C

PWR/

VOL

2

UP

DOWN

D

C R S 25

5		6		7		8

1		2		3		4

FX-MG8517ZT,MG8817ZT

3.5 CD CORE UNIT(SERVO UNIT)

E CD CORE UNIT(SERVO UNIT)

A

PICKUP UNIT (SERVICE)(P8)

B

C

D

MOTOR PCB(B)

M4 CARRIAGE

CXB3178

RF AMP/

AUTO POWER

CONTROL

CD DRIVER

DISC INSERT DETECT

DM5 SPINDLE CXM1120

26 D E

1		2		3		4

5

6

FOCUS/TRACKING

CARRIAGE/SPINDLE

DIGITAL SERVO

DIGITAL SIGNAL PROCESSOR

D/A CONVERTER

7		8

FX-MG8517ZT,MG8817ZT

A

B

C

F

D

E 27

5		6		7		8

1		2		3		4

FX-MG8517ZT,MG8817ZT

3.6 CD CORE UNIT(STS UNIT)

G CD CORE UNIT(STS UNIT)

A

CDCORE 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

28 F G

1		2		3		4

5		6		7		8

FX-MG8517ZT,MG8817ZT

A

D/A CONVERTER

OLLER

B

4M DRAM

Q? CN701CN???

C

ER	MOTOR DRIVER

D

G 29

5		6		7		8

FX-MG8517ZT,MG8817ZT

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→

30