Pioneer CDX-MG6446ZH, CDX-MG6346ZH Service Manual

Service

Manual

HONDA

ORDER NO.

CRT2580

6 DISC IN-DASH CD CHANGER

CDX-MG6156ZH EW

VEHICLE

DESTINATION

PRODUCED AFTER

PART No.

ID No.

PIONEER MODEL No.

CIVIC,CR-V,ACCORD

EUROPE

November 2000

08A06-3C6-500

831NT

CDX-MG6156ZH/EW

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

Model	Order No.	Mech. Module	Remarks
CDX-MG6346ZH/ES	CRT2407
CX-890	CRT2376	G1	CD Mech. Module:Circuit Description,Mech. Operation,Disassembly

EXPLODED VIEWS AND PARTS LIST

PACKING (Page 3)

- PACKING SECTION PARTS LIST

		Part No.
Mark No.	Description	CDX-MG6346ZH/ES	CDX-MG6156ZH/EW
5	Owner's Manual	CRB1561	CRD3333
11	Carton	CHG3909	CHG4300
12	Contain Box	CHL3909	CHL4300

EXTERIOR (Page 4)

- EXTERIOR SECTION PARTS LIST

		Part No.
Mark No.	Description	CDX-MG6346ZH/ES	CDX-MG6156ZH/EW
27	Door	CAT2003	CAT2242
41	Grille Unit	CXB3409	CXB7115

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-ZZS. OCT. 2000 Printed in Japan

Service

Manual

HONDA

CDX-MG6346ZH/ES

6 DISC IN-DASH CD CHANGER

ORDER NO.

CRT2407

6 DISC IN-DASH CD CHANGER

CDX-MG6346ZH ES

CDX-MG6446ZH ES

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

Model No.		Order No.		Mech. Module		Remarks
CX-890		CRT2376		G1		CD Mechanism Module:Circuit Description, Mechanism Operation, Disassembly
VEHICLE			DESTINATION			PRODUCED AFTER	HONDA PART No.	ID No.			PIONEER MODEL No.
Not specified			THAILAND, AUSTRALIA			October 1999	08A06-3B5-300				CDX-MG6346ZH/ES
Not specified			THAILAND, AUSTRALIA			October 1999	08A06-3B5-310				CDX-MG6446ZH/ES

CONTENTS

1.	SAFETY INFORMATION ............................................	2	7.	GENERAL INFORMATION .......................................	48
2.	EXPLODED VIEWS AND PARTS LIST .......................	3		7.1 DIAGNOSIS ........................................................	48
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...		10		7.1.1 TEST MODE ..............................................	48
4.	PCB CONNECTION DIAGRAM ................................	26		7.1.2 DISASSEMBLY .........................................	52
5.	ELECTRICAL PARTS LIST ........................................	42		7.1.3 CONNECTOR FUNCTION DESCRIPTION .......	56
6.	ADJUSTMENT..........................................................	46		7.2 IC ........................................................................	57
			8.	OPERATIONS AND SPECIFICATIONS.....................	61

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 ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 1999	K-ZZB. OCT. 1999 Printed in Japan

CDX-MG6346ZH,MG6446ZH

- CD Player Service Precautions

- When the Repair is Complete

1.For pickup unit(CXX1311) handling, please refer to"Disassembly"(see page 52).

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 46).

When the repair is complete, make the CD mechanism ready for transportation implementing the following procedures:

1.Press the changer side 1 and 4 simultaneously to turn the ACC on.

2.As the ACC is turned on, the disc indicator blinks in red.

3.When the blinking is stopped, the mechanism is ready for the transportation.

4.Attach the Transportation Bracket (CNC7878). Now you can transport it.(See the figure below)

Transportation Bracket (CNC7878)

Case (CNB2354)

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.

2

CDX-MG6346ZH,MG6446ZH

2. EXPLODED

2.1 PACKING

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.

-PACKING SECTION PARTS LIST

Mark No. Description			Part No.		Mark No. Description		Part No.
	1	Screw Assy	CEA2537	11		Carton(CDX-MG6346ZH/ES) CHG3909
*	2	Polyethylene Bag	CEG-127			Carton(CDX-MG6446ZH/ES) CHG3991
	3	Screw	HMF40P060FZK	12		Contain Box(CDX-MG6346ZH/ES) CHL3909
	4	Screw	HMF50P080FMC			Contain Box(CDX-MG6446ZH/ES) CHL3991
	5	Owner’s Manual(English) CRB1561		* 13		Band	CNF-512
	6	Polyethylene Bag	CEG1116
*	7	Sheet	CHW1402
	8	Protector	CHP2123
*	9	Polyethylene Bag	E36-609
	10	Protector	CHP2124

3

CDX-MG6346ZH,MG6446ZH

2.2 EXTERIOR

4

CDX-MG6346ZH,MG6446ZH

- EXTERIOR SECTION PARTS LIST

Mark No. Description		Part No.		Mark No. Description			Part No.
1	Screw	BMZ20P020FMC		29		Spring	CBH2201
2	Screw	BMZ26P030FMC		30		Spring	CBH2200
3	Screw	BMZ26P060FMC		31		Conductor	CNC8051
4	Chassis Unit(CDX-MG6346ZH/ES)		CXB3407	32		Lighting Conductor	CNV5901
	Chassis Unit(CDX-MG6446ZH/ES)		CXB5581	33		Gear	CNV5547
5	Case	CNB2354		34		Arm	CNV5548
6	Side Frame	CNB2397		35		Guide	CNV5880
7	Bracket	CNC7878		36		Sheet	CNM6318
8	Bracket(CDX-MG6346ZH/ES)	CNC8026		37		Double Faced Tape	CNM6424
	Bracket(CDX-MG6446ZH/ES)	CNC8816		38		Insulator	CNM6512
9	Front Frame	CNC8110		39		PCB	CNP5373
10	Holder	CNC8111		40		Bracket Unit	CXB3111
11	Insulator	CNM5969		41		Grille Unit	CXB3409
12	Insulator	CNM6112		42		Screw	IMS20P040FMC
13	PCB	CNP5516		43		CD Mechanism Module(G1)	CXK4702
14	Insulator	CNM6409		44		Screw	IMS20P040FMC
15	Holder	CNV5543		45		Screw	IMS26P040FMC
* 16	Caution Label	CRP1200		46		Cushion	CNV5674
17	Extension Unit	CWM6677		47		Keyboard Unit	CWM6289
18	Cord	CDE6148		48		Transistor(Q708)	2SB1335A
19	Connector(CN102)	CKS2200		49		Damper	CNV5120
20	Connector(CN103)	CKS3597		50		Holder	CNC7826
21	Connector(CN701)	CKS3785		51		Screw	CBA1250
22	Connector(CN101)	CKS3989		52		Sheet	CNM5981
23	Holder	CNC8031		53		Connector(CN901)	CKS3785
24	Screw	BPZ20P060FMC		54		Screw	IMS26P030FZK
25	Button	CAC5864		55		Holder	CNC7477
26	Button	CAC5865		56		Spring(Left Rear)	CBH2365
27	Door	CAT2003		57		Spring(Right Rear)(Black) CBH2361
28	Washer	CBF1038		58		Spring(Front)	CBH2360
				59		Spacer	CNM6658
				60		Spacer	CNM6626

5

CDX-MG6346ZH,MG6446ZH

2.3 CD MECHANISM

6

CDX-MG6346ZH,MG6446ZH

- CD MECHANISM SECTION PARTS LIST

Mark No. Description		Part No.		Mark No. Description		Part No.
1-9	•••••		54		Shaft	CLA3693
10	CD Core Unit(Servo Unit) CWX2202		55		Steer	CNC7215
11	Connector(CN101)	CKS2764	56		Steer	CNC7216
12	Connector(CN301)	CKS3966	57		Cam	CNC7227
13	Connector(CN201)	CKS3991		* 58 Holder		CNC7235
14	CD Core Unit(STS Unit)	CWX2203	59		Gear	CNC7236
15	Connector(CN701)	CKS3989	60		Gear	CNC7238
16	Connector(CN801)	CKS3989	61		Lever	CNC7243
17	Connector(CN802)	CKS4054	62		Lever	CNC7244
18	Screw	CBA1037	63		Lever	CNC7245
19	Screw	CBA1041	64		Lever	CNC7246
20	Screw	CBA1076	65		Cover	CNC7441
21	Screw	CBA1250	66		Holder	CNC8613
22	Screw	CBA1405	67		Lever	CNC8024
23	Screw	CBA1452	68		Gear	CNC8140
24	Screw	CBA1453	69		Sheet	CNM5831
25	Screw	CBA1479	70		PCB	CNP5680
26	Washer	CBF1037	71		PCB	CNP5681
27	Washer	CBF1038	72		Gear	CNR1479
28	Washer	CBF1039	73		Gear	CNR1481
29	Washer	CBF1064	74		Gear	CNR1495
30	Spring	CBH2007	75		Gear	CNR1501
31	Spring	CBH2271	76		Gear	CNR1502
32	Spring	CBH2274	77		Gear	CNR1540
33	Spring	CBH2014	78		Gear	CNR1541
34	Spring	CBH2015	79		Belt	CNT1080
35	Spring	CBH2016	80		Worm Gear	CNV5046
36	Spring	CBH2017	81		Gear	CNV5047
37	Spring	CBH2290	82		Gear	CNV5048
38	Spring	CBH2019	83		Gear	CNV5049
39	Spring	CBH2064	84		Holder	CNV5056
40	Spring	CBH2195	85		Pulley	CNV5058
41	Spring	CBH2196	86		Arm	CNV5061
42	Spring	CBH2224	87		Spacer	CNV5066
43	Spring	CBH2250	88		Arm	CNV5189
44	Screw	CBA1082	89		Cover	CNV5207
45	Roller	CLA3154	90		Cover	CNV5424
46	Roller	CLA3157	91		Cover	CNV5425
47	Roller	CLA3159	92		Lever	CNV5427
48	Roller	CLA3160	93		Arm	CNV5491
49	Shaft	CLA3179	94		Gear	CNV5519
50	Spacer	CLA3194	95		Holder	CNV5648
51	Roller	CLA3248	96		Composite PCB	CNX3141
52	Bush	CLA3353	97		Composite PCB	CNX2989
* 53	Shaft	CLA3469	98		Chassis Unit	CXB4314

7

CDX-MG6346ZH,MG6446ZH

Mark No. Description			Part No.		Mark No. Description			Part No.
	99	Frame Unit	CXB2702			144	Screw	JFZ14P020FZK
	100	Lever Unit	CXB2703			145	Washer	YE15FUC
	101	Arm Unit	CXB2704			146	Arm Unit	CXB4953
	102	Lever Unit	CXB2708			147	Arm Unit	CXB4954
	103	Lever Unit	CXB2709			148	Tray Assy	CXB4307
	104	Lever Unit	CXB2711			149	Spring	CBH2269
	105	Arm Unit	CXB2712			150	Sheet	CNM6699
	106	Lever Unit	CXB2713			151	Cam Motor Assy	CXB3170
	107	Lever Unit	CXB2714			152	Spacer	CNC8289
	108	Carriage Mechanism Unit(G1)	CXB5639	*		153 Bracket Unit		CXB4165
	109	Screw	CBA1041	*		154 Motor Unit(M1 Cam Gear)		CXB3174
	110	Screw	CBA1250	*		155 Motor Unit(M3 ELV)		CXB3175
	111	Screw	CBA1362			156	Screw	JFZ20P025FMC
	112	Screw	CBA1471			157	Loading Arm L Assy	CXB3171
	113	Washer	CBF1038			158	•••••
	114	Spring	CBH2008			159	Screw	CBA1453
	115	Spring	CBH2009			160	Washer	CBF1038
	116	Spring	CBH2010			161	•••••
	117	Spring	CBL1335			162	Washer	CBF1074
	118	Roller	CLA3707			163	Spring	CBH2136
*	119	Bracket	CNC7228	*		164 Arm		CNC7241
	120	Guide Unit	CXB4417	*		165 Arm		CXB4449
	121	Cover	CNC7628			166	•••••
	122	Sheet	CNM6414			167	Belt	CNT1079
	123	Sheet	CNM5378			168	Holder	CNV5055
	124	Sheet	CNM5695			169	Pulley	CNV5057
	125	Sheet	CNM5827			170	Roller	CNV5064
	126	PCB	CNP4978			171	Guide	CNV5125
	127	Ball	CNR1189	*		172 Bracket Unit		CXB4316
	128	Bearing	CNR1423			173	Roller Gear Unit	CXB3176
	129	Belt	CNT1079	*		174 Motor Unit(M2 LOAD)		CXB3177
	130	Holder	CNV5037			175	Screw	JFZ14P020FMC
	131	Guide	CNV5040			176	Loading Arm R Assy	CXB3172
	132	Clamper	CNV5042			177	Screw	CBA1453
	133	Rack	CNV5111			178	Washer	CBF1074
	134	Arm	CNV5579			179	Spring	CBH2136
	135	Holder	CNV5759	*		180 Arm		CNC7242
*	136	Chassis	CXB2698	*		181 Arm		CXB4448
	137	Arm Unit	CXB2705			182	•••••
	138	Motor Unit(M4 CARRIAGE) CXB3178				183	Roller	CNV5064
	139	Screw Unit	CXB3179			184	Roller Gear Unit	CXB3176
	140	Lever Unit	CXB4450			185	Guide	CNV5126
	141	Insulator	CNM6306			186	Switch(S885 MAX)	CSN1052
	142	Spacer	CNM6345			187	LED(D883)	CL202IRXTU
	143	Motor(M5 SPINDLE)	CXM1120			188	Photo-transistor(Q881)	CPT230SCTD(CD)

8

CDX-MG6346ZH,MG6446ZH

Mark No. Description		Part No.
189	LED(D891,892)	CL202IRXTU
190	Switch(S887 CLAMP)	CSN1051
191	Switch(S886 ELV HOME)	CSN1052
192	Bracket Unit	CXB4306
193	Photo-transistor(Q851,852)	CPT230SCTD(CD)
194	Resistor(R856)	RS1/8S911J
195	Resistor(R857)	RS1/8S821J
196	Photo-interrupter(Q1)	RPI-221

197•••••

198Pickup Unit(Service)(P8) CXX1311

9

	1		2		3		4

CDX-MG6346ZH,MG6446ZH

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

PICKUP UNIT(SERVICE)						C CD CORE UNIT(SERVO UNIT)													D CD CORE UN
A			MD		CN101
				5			RF AMP
			LD+
				14	V5
						16 PD
MD		LD													CN201		CN801
			LD-	15		17 LD	IC101					IC201										B
											UPD63702AGF
					Q101		UPC2572GS	35														D
									69	EFM										SHOCKPROOF		LR
HOLOGRAM
																				CONTROL		X
UNIT
															WDCK
										DIGITAL SERVO
							Q102								RFCK					IC501
			FO+								PROCESSOR				RAOV
FOCUS ACT				4
															LRCK					CXD2511R
			TO+						MD/SD/TD/FD						SCKO
TRACKING ACT				3
										DIGITAL SIGNAL					DOUT
															MCK
						CD 4CH DRIVER					PROCESSOR
CARRIAGE						14					-COMPUTER
	MOTOR					11
											INTERFACE
				1		16														IC502
		M					IC301
				2		15														MSM514400DP-60TS
							BA5986FM
				3						VR2	XTAL	XTAL
SPINDLE				4																4M DRAM
MOTOR			EC	8		22				74	10	11
			VM												CONT
				5	BVD		MUTE									19	19
BCL			VCC
				6	V5
							9
			ST/SR									X201										VM
B				7											5V	28	28	5V
			GND																	5V REGUL
				10
			HOME													29	29			4	IC701
				11											VD	30	30	VD
	HOME																			V+5V	BA05S
SWITCH					CN301																	1
E MOTOR PCB(B)										F MOTOR PCB(A)
																				XAO/XSTB/XSO/XS
																36	45	ELVSNS
											ELEVATION					35	44	PVD
											SENSE					37	46
																			MOTOR DRIVER
											CAMGEAR		M			32	41	CG-	3	IC802	2
																33	43	CG+	5	LB1836M	6
											MOTOR
G PCB UNIT(D)				K LOAD MOTOR PCB							ELEVATION		M			39	48	EL-	MOTOR DRIVER
																		EL+	3		2
Q851	Q852										MOTOR					41	50				6
			1	1		PH1	3												5	IC801
																			12		13
																				LB1836M
C							2		I PCB UNIT(E) H PCB UNIT(B)
																			10		9
				LOADING		M	1
L PCB UNIT(A)				MOTOR				3	PH1
														LD MOTOR-				LO-
								2				5	5			5	7
														LD MOTOR+				LO+
								1			PVD	6	6			7	5					Q8
												3	3		PVD	3	9	PVD
			1
											PH1	4	4		PH1	4	8			PVD
D891		D892		J PCB UNIT(C)				1
											PH2				PH2
												2	2			2	10
										MAXSW		1	1		MAXSW	1	11			Q802
						PVD								ELV HOME				ELHOME
							4	4							S886	10	2
				D883		PH2	1	1							S887	11	1	CLAMP
					Q881	S883
							2	2					CLAMP				CN802
						MAX														B KEYB
						SWITCH
																				D905~916
D
																		KEY MATRIX
10
1					2						3							4

	5		6		7		8

CDX-MG6346ZH,MG6446ZH

E UNIT(STS UNIT)														A EXTENSION UNIT
																																			A
			8fs DF D/A LPF				CN701		CN101			LPF								ANALOG SWITCH													CN102
	BCK			IC601		18		42	9		6	IC101		7	CD MUTE 4								IC103				3		CD-LCH					9
	DATA			AK4321VF			LCH			LCH		NJM4558MD				Q101					TC74HC4066AF
OOF	LRCK																											BUS
			5	12	6																	NHOUT									6
OL	XTLI	39				PD																				1		IC501					BUS+	1
																							NHPOW								5		BUS-
					DEMO													Q104								8 CA0008AM								2
1R																															Q701		SWDACC	4
																												ASENS
				WDSL/CHMO/CHMI XWRE/XRDE/XQOK XWIH/XEMP/ADRMON/CHDT
										VD REGULATOR														6		5	7						B.U
														Q751
							VD			VD	Q754
					VD			8	43			B.U								VDD
								9	42								VDCONT							9		10	14
P-60TS												Q753																2
																										IC701						Q702
M																							VDD PAJ002A
							CONT 35		16																					VDD
	VM						EMPH 39		12																								Q721		B
REGULATOR
										WDSL/CHM0/CHM1
IC701										XWRE/XRDE/XQOK																			X601
				VD						XWIH/XEMP/ADRMON
BA05SFP		2
											CHDT
															53		27		13		56	4			15		22	25	28		29		24
	1						POWER 10		41														16
															EMPH		CONT		VDCONT		CDMUTE	NHOUT	NHPOW	ASENS		BSENS		RESET	XIN		XOUT	ISENS
TB/XSO/XSI/XSCK/XRST/SCONT												26	POWER																						GA-NET
							ELVSNS	1	50			79	ELVSNS
			S801			LOADSW 50			1			17	LOADSW
			S802			DOORSW		49	2			2	DOORSW
			S803
ER						MODESW 48			3			18	ELVSW
2							CG1	6	45			62	CG1
6
							CG2	7	44			61	CG2										SYSTEM												14P
																						CONTROLLER
ER					V+5V			11	40	V+5V
2							ELV1	4	47			60	ELV1
6							ELV2	5	46			59	ELV2										IC601
13
							LO1	2	49			58	LO1										PD5540A
9
							LO2	3	48			57	LO2																						C
							MAXSW 47		4			78	PH3
							PH2	46	5			77	PH2
							PH1	45	6			76	PH1
	Q801											55
													LOAD				EJECTKEY
Q802			VD				LOAD 12		39						DCLOSE				ILL1	ILL2							ILPOW		EXSO		EXCSK	EXMODE
												6	ELHOME
												5
		LOAD											CLAMPSW
						ELHOME		44	7					40		14		36		37							70		68	66		67
							CLAMP 43		8
KEYBOARD UNIT																													DATA		EXCK
							DOORSW			DOORSW
								16	2													Q733		ILL POWER
							ILPOW 12		6	ILPOW
					EJECT								Q741														Q732
								7	11	EJECT																			B.U				ILL
				Q904
							ILL1 14		4	ILL1							Q742																	2
16							ILL2 15		3	ILL2			ILL																				B.U	3
		Q903					ILL 17
									1	ILL																							GND	1	D
																											Q731
								13	5	VDD																									CN103
				Q905		20																	Q734
			LED DRIVER			VDD	2	10	8	DATA
							3
								8	10 CLK
		IC901		BU2092FV			4	9	9	MODE
															KEY DATA
							CN901			CN701																									11
					5							6															7								8

	1		2		3		4

CDX-MG6346ZH,MG6446ZH

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-a
A
			D CD CORE UNIT(STS UNIT)
		Large size
A-a	A-b	SCH diagram
A-a	A-b	Guide page
A-a	A-b	Detailed page

B

C

B KEYBOARD UNIT

D

12 A B

	1		2		3		4

	5		6		7		8

CDX-MG6346ZH,MG6446ZH

A-b

A

A EXTENSION UNIT

B

C

D

A 13

	5		6		7		8

A

B

C

D

1

2

3

4

CDX-MG6346ZH,MG6446ZH

1

A-a A-b

D CD CORE UNIT(STS UNIT)

14 A-a

	1		2		3		4

5

6

7

8

CDX-MG6346ZH,MG6446ZH

2

A-a A-b

B KEYBOARD UNIT

A-a B 15

A

B

C

D

	5		6		7		8

A

B

C

D

1		2		3		4

CDX-MG6346ZH,MG6446ZH

-a A-b

A EXTENSION UNIT

1

16 A-b

1

2

3

4

	5		6		7		8

CDX-MG6346ZH,MG6446ZH

A-a A-b

	2		A-b 17
5	6	7	8

A

B

C

D

	1		2

CDX-MG6346ZH,MG6446ZH

3.2 CD CORE UNIT(SERVO UNIT)

A

CD

(SERVICE)

B

C

E

MOTOR PCB(B)

M4 CARRIAGE

CXB3178

DISC INSERT DETECT

D	M5 SPINDLE
	CXM1120

	3		4

CD CORE UNIT(SERVO UNIT)

RF AMP/

AUTO POWER

CONTROL

2.5V

CD DRIVER

18 C E

	1		2		3		4

	5		6		7		8

CDX-MG6346ZH,MG6446ZH

A

B

FOCUS/TRACKING

CARRIAGE/SPINDLE

DIGITAL SERVO

DIGITAL SIGNAL PROCESSOR

D/A CONVERTER

16.934MHz

C

F

22/6R3

D

C 19

	5		6		7		8

	1		2

CDX-MG6346ZH,MG6446ZH

3.3 CD CORE UNIT(STS UNIT)

A

			CD CORE UNIT				(SERVO UNIT)
B
					DC

M1 : CXB3174

ELV SENSE

Q1 : RPI-221

M3 : CXB3175

C

MOTOR PCB

F (A)

H

D

20 D F

	3		4

GD CD CORE UNIT(STS UNIT)

SURE TRACK

MEMORY CONTRO

+5V REGULATOR

7.5V

9.0V

MOTOR DRIVER

LOAD SWITCH

DOOR SWITCH

MODE SWITCH

	1		2		3		4

	5		6		7		8

CDX-MG6346ZH,MG6446ZH

A

22/6R3

D/A CONVERTER

TRACK

RY CONTROLLER

4M DRAM

RIVER

MOTOR DRIVER

B

CN101

A	C

D

D 21

	5		6		7		8

CDX-MG6346ZH,MG6446ZH

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→

22

CDX-MG6346ZH,MG6446ZH

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 →

23

CDX-MG6346ZH,MG6446ZH

	8 CH1: TEY	0.5V/div.		8 CH1: TEY	0.5V/div.		& SCKO	2V/div.	500ns/div.
						10ms/div.
			5ms/div.
	9 CH2: TIN	0.5V/div.		9 CH2: TIN	0.5V/div.
	Test mode: 100 tracks jump(FWD)			Normal mode: Play			Play

REFOUT→	REFOUT→
			REFOUT→
REFOUT→	REFOUT→

	) CH1: RCH	2V/div.
			200µs/div.
	( CH2: LCH	2V/div.

Normal mode: PLAY (0dB,1kHz)

AAGND →

AAGND →

24

	1		2		3		4

CDX-MG6346ZH,MG6446ZH

3.4 PCB UNIT(A,B,C,D,E), LOAD MOTOR PCB

			I			H
J
PCB UNIT(C)		PCB UNIT(E)			PCB UNIT(B)

A

CPT230SCTD(CD)

L

SWITCH

PCB UNIT(A)

DG

CN802

B

CPT230SCTD(CD)

CXB3177

PCB UNIT(D)

MG

LOAD MOTOR PCB

K

C

D

	G H	I	J K L 25
1	2	3	4

	1		2

CDX-MG6346ZH,MG6446ZH

4. PCB CONNECTION DIAGRAM

A	4.1 EXTENSION UNIT
	NOTE FOR PCB DIAGRAMS
	1. The parts mounted on this PCB
	include all necessary parts for
	several destination.
	For further information for
	respective destinations, be sure
	to check with the schematic dia-
	gram.
	2. Viewpoint of PCB diagrams
	Connector	Capacitor
			SIDE A
B
	P.C.Board	Chip Part	SIDE B

C

							UNIT
D							AEXTENSION
		26
			A
		1				2

3		4

SIDE A

CORD

3		4