Panasonic CQEA-1070-L, CQEA-1071-L, CQEA-1072-L, CQEA-1074-L, CQEA-1073-L Service manual

ORDER No. AED0109021

AUTOMOTIVE ELECTRONICS

			AUDI
			CQ-EA1070L
			CQ-EA1071L
			CQ-EA1072L
			CQ-EA1073L
			CQ-EA1074L
			AM/FM MPX ELECTRONIC TUNING
			RADIO with Stereo Cassette Tape
			Player and CD Changer
			DESTINATION : Europe
			PRODUCED AFTER (CQ-EA1070L) : Oct., 2000
			PRODUCED AFTER (CQ-EA1071L) : Jan., 2001
			PRODUCED AFTER (CQ-EA1072L-74L) : Apr., 2001
			[Note] See the next page about PART No. and VECLE.
	Specification*
	General
	Power Supply	DC 12V (11V - 16V),	Tape Player
		Test Voltage 14.4V	Signal to Noise Ratio		55dB (IHF-A)
		Negative Ground	Wow and Fuluter		Less than 0.3%
	Current Consumption	Less than 2.5A (0.5W×4ch)
	Power Output	12W×2ch	ICD Player
	Speaker Impedance	4Ω	Signal to Noise Ratio		More than 60dB (IHF-A)
			Channel Separation		More than 50dB (IHF-A)
	LW Radio
	Frequency Range	153 - 279kHz	Dimensions**		179(W)×110(H)×163(D)mm
	Usable Sensitivity	18dB/µV (S/N 20dB)	Weight**		3.1kg
	MW Radio		* Specifications and the design are subject to possible modification
	Frequency Range	531 - 1,602kHz	without notice due to improvements.
	Usable Sensitivity	14dB/µV (S/N 20dB)	** Dimensions and Weight shown are approximate.
			Dolby noise reduction manufactured under license from Dolby
	FM Stereo Radio		Laboratories Licensing Corporation.
			“Dolby” and the double-D symbol		are trade marks of Dolby
	Frequency Range	87.5 - 108.0MHz
			Laboratories Licensing Corporation.
	Usable Sensitivity	12dB/µV (S/N 30dB)
				© 2001 Matsushita Communication Industrial Co.,
				Ltd. All rights reserved. Unauthorized copying and
				distribution is a violation of law.

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

CONTENTS

		Page			Page
1	PART No. AND VEHICLE	2	12	EXPLODED VIEW (Unit)	24
2	FEATUERS	2	13	CD CHANGER PARTS LIST	25
3	LASER PRODUCTS	2	14	EXPLODED VIEW (CD Deck-1)	28
4	FRONT VIEW AND FUNCTIONS	3	15	EXPLODED VIEW (CD Deck-2)	29
5	REAR VIEW AND CONNECTORS	3	16	EXPLODED VIEW (CD Deck-3)	30
6	WIRING CONNECTION	4	17	TAPE PLAYER PARTS	31
7	BLOCK DIAGRAM	5	18	EXPLODED VIEW (Tape Deck)	32
8	TERMINALS DESCRIPTION	9	19	WIRING DIAGRAM	33
9	PACKAGE AND IC BLOCK DIAGRAM	11	20	SCHEMATIC DIAGRAM -1	41
10	CD DISC CENTERING ALIGNMENT	14	21	SCHEMATIC DIAGRAM -2	43
11	REPLACEMENT PARTS LIST	15

1 PART No. AND VEHICLE 3 LASER PRODUCTS

[PART No.]

±(CQ-EA1070L) : 8E0 035 195

±(CQ-EA1071L) : 4D0 035 195H

±(CQ-EA1072L) : 4B0 035 195H

±(CQ-EA1073L) : 8L0 035 195H

±(CQ-EA1074L) : 8Z0 035 095H

[VEHICLE]

±(CQ-EA1070L) : AUDI A4

±(CQ-EA1071L) : AUDI A8

±(CQ-EA1072L) : AUDI A6

±(CQ-EA1073L) : AUDI A3

±(CQ-EA1074L) : AUDI A2

2FEATUERS

±PLL (Phase Locked Loop) synthesized tuning.

±12-FM, 12-AM presets with preset scan

±Dolby noise reduction.

±NCD-8 CD player.

±CD Changer control.

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AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

4 FRONT VIEW AND FUNCTIONS

5 REAR VIEW AND CONNECTORS

3

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

6 WIRING CONNECTION

4

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

7 BLOCK DIAGRAM

7.1.Main Block

5

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

7.2.Tuner / Display Block

6

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

7.3.AMP Block

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AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

7.4.CD Servo Block

8

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

8 TERMINALS DESCRIPTION

8.1.Main Block

IC701 : C2CBKA000001

Pin	Port		Descriptions		I/O	FM	AM	CD	TP
No.					(V)	(V)	(V)	(V)	(v)
1	/RSTOUT	Not used			-	-	-	-	-
2	NMI	(Connecting to GND)			-	0	0	0	0
3	VSS	GND			-	0	0	0	0
4	VDD	+5V	power supply		-	4.8	4.8	4.8	4.8
5	ILL1	Illumi control			O	0	0	0	0
6	ILL2	Iiiumi. control			O	2	2	1.2	1.2
7	TUNER1.ON	Radio power on/off			O	4.8	4.8	4.8	4.8
8	TUNER2.ON	Radio power on/off			O	4.8	4.8	4.8	4.8
9	LCD.ADR	LCD address			O	0	0	0	0
10	LCDRST	LCD reset			O	4.8	4.8	4.8	4.8
11	LCD.CS	LCD selection			O	0	0	0	0
12	LCD/E2.CLK	LCD/SEC. data shift			O	0	0	0	0
		clock
13	LCD/E2.DT.	LCD/SEC. serial data			O	0	0	0	0
	IN
14	E2.DT.OUT	Security data			I	0	0	0	0
15	E2.CS	Security IC selection			O	0	0	0	0
16	AUDIO.ON	Audio power on/off			O	4.8	4.8	4.8	4.8
17	VSS	GND			-	0	0	0	0
18	VDD	+5V power supply			-	4.8	4.8	4.8	4.8
19	I2C.DATA	DSP/AF.SW data			O	4.8	4.8	4.8	4.8
20	I2C.CLK	Data shift clock			O	4.8	4.8	4.8	4.8
21	F/E.DATA	Tuner control data			O	0	0	0	0
22	F/E.CLK	Data shift clock			O	0	0	0	0
23	F/E.STP	Tuner control			O	2.9	3.7	3.8	3.8
24	F/E.ENA	Tuner pack enable			O	0	0	0	0
25	VSS	GND			-	0	0	0	0
26	VDD	+5V power supply			-	4.8	4.8	4.8	4.8
27	FIELD.1	Field		strength	I	0.9	0.6	0.6	0.6
		detection
28	N.C.1.1	Noise level detection			I	0	0	0	0
29	PHOTO	Photo sensor data			I	1.2	0.8	1.9	1.6
30	MP.1	FM		multipath	I	2.9	0	0	0
		interference
31	DEV.1	FM deviation			I	0	2.3	2.3	2.3
32	ANT.V	ANT1 current intensity			I	0.5	0.5	0.5	0.5
33	IF.V	ANT2 current intensity			I	0	0	0	0
34	FIELD.2	Field		strength	I	1.2	1.2	1.2	1.2
		detection
35	VA.REF	+5V power suooly			-	4.8	4.8	4.8	4.8
36	VA.GND	GND			-	0	0	0	0
37	NC.1.2	Noise level detection			I	0	0	0	0
38	MP.2	FM		multipath	I	0	0	0	0
		interference
39	6.1V DET	+B level detection			I	4.8	4.7	4.6	4.8
40	+B MONI.	+B level detection			I	2.9	2.8	2.7	2.8
41	VSS	GND			-	0	0	0	0
42	VDD	+5V power supply			-	4.8	4.8	4.8	4.8
43	BAT.DET	+B level detection			I	4.8	4.6	4.7	4.8
44	P.SW	Power switch			I	4.8	4.3	4.5	4.7
45	T.MUTE	Tape mute			O	4.8	4.6	4.6	4.8
46	T.LOAD	Tape loading			I	0	0	0	0
47	CD.A.MUT/C	CD start/stop			O	0	0	0	0
	D.SW1
48	STBY	Power Amp stand-by			O	4.8	4.8	4.8	4.8
49	LCD.MONI	LCD			I	4.8	4.3	4.4	4.7
50	RDS.CLK	RDS data shift clock			I	1.5	1.5	1.5	1.5
51	VSS	GND			-	0	0	0	0
52	VDD	+5V power supply			-	4.8	4.8	4.8	4.8
53	DAB.RX0	Not used			-	-	-	-	-
54	DAB.TX0	Not used			-	-	-	-	-
55	RDS2.CLK	RDS data shift clock			I	2.5	2.5	2.5	2.5
56	RDS2.DATA	RDS data			I	2.4	2.4	2.4	2.4
57	RDS.DATA	RDS data			I	1.1	1.1	1.1	1.1
58	PLL.DI	PLL data			O	0	0	0	0
59	PLL.DO	PLL data			I	2.5	0	0	0
60	PLLCLK	PLL clock			O	0	0	0	0
61	CDC.REMO	CD CH remote data			O	4.8	0	0.2	0

Pin	Port		Descriptions	I/O	FM	AM	CD	TP
No.				(V)	(V)	(V)	(V)	(v)
62	CDC.DATA	CD CH data		I	4.8	4.8	4.8	4.8
63	KLIN.OUT	K-LINE data		O	4.8	0	4.8	4.8
64	KLIN.IN	K-LINE data		I	4.8	4.8	4.8	4.8
65	PLL.CE	PLL chip enable		O	0	0	0	0
66	CDC.CLK	CD CH clock		I	4.8	4.8	4.8	4.8
67	BOSE	BOSE Amp connection		I	4.8	4.6	4.8	4.6
68	VDD	+5V	power supply	-	48	4.8	4.8	4.8
69	VSS	GND		-	0	0	0	0
70	N.CNTR	NAVI. control		I	4.8	4.6	4.7	4.6
71	EXT.AMP.ON	Ext Amp power control		O	0	4.8	4.8	4.8
72	CAN.N.ERR	CAN-BUS error		I	4.8	0	4.8	4.8
73	CAN.EN	CAN-BUS driver enable		O	0	4.8	0	0
74	CAN.STB	BUS data strobe		O	0	1.9	0	0
75	CAN.RX	CAN-BUS data		I	4.8	2.2	2.2	4.8
76	CAN.TX	CAN-BUS data		O	4.8	0	2.4	4.8
77	CD.RST	CD reset		O	4.8	4.8	4.8	4.5
78	VDD	+5V	power supply	-	4.8	4.8	4.8	4.8
79	VSS	GND		-	0	0	0	0
80	/RD	Not used		-	-	-	-	-
81	/WR/WRL	Not used		-	-	-	-	-
82	/READY	Not used		-	-	-	-	-
83	ALE	Not used		-	-	-	-	-
84	/EA	(+5V pull-up)		-	4.8	4.8	4.8	4.8
85	MUTE	Mute		O	4.8	4.8	4.8	4.8
86	KO.0	Key scan		O	0	0.8	0.8	0.8
87	KO.1	Key scan		O	0	0.8	0.7	0.8
88	KO.2	Key scan		O	0	0.8	0.7	0.8
89	KO.3	Key scan		O	0	0.8	0.7	0.8
90	KO.4	Key scan		O	0	0.8	0.7	0.8
91	BIT.1	Tape mode SW		I	0	0	0	4.8
92	BIT.2	Tape mode SW		I	0	0	0	4.8
93	VDD	+5V power supply		-	4.8	4.8	4.8	4.8
94	VSS	GND		-	0	0	0	0
95	BIT.3	Tape mode SW		I	0	0	0	0
96	KI.0	Key data		I	0	0	0	0
97	KO.5	Key scan		O	0.7	0.8	0.7	0.8
98	EN.B	Tape end detection		I	0	0	0	0
99	A/B.IN	Tape A/B side detection		I	0	0	0	0
100	AF.MUTE	AF mute		O	0	0	0	0
101	NC	No connection		-	-	-	-	-
102	NC	No connection		-	-	-	-	-
103	M2	Tape main motor control		O	0	0	0	4.8
104	M2F	Tape main motor control		O	0	0	0	4.8
105	T.IN	Tape detection		I	0	0	0	4.8
106	F.IN	Tape control		O	0	0	0	0
107	EN.A	Tape end detection		I	0	0	0	0
108	KI.1	Key data		I	0	0.6	0	0.7
109	KI.2	Key data		I	1	0.7	0	0.7
110	KI.3	Key data		I	1	0.7	0.7	0.7
111	VDD	+5V power supply		-	4.8	4.8	4.8	4.8
112	VSS	GND		-	0	0	0	0
113	KI.4	Key data		I	1	0.7	0.7	0.7
114	R.IN	Tape control		O	0	0	0	0
115	CD.SIMO	CD serial data		O	0	0	0	0
116	CD STP/STA	CD start/stop		O	0	0	4.8	0
117	CD.SOMI	CD serial data		I	0	4.8	4.3	0
118	CD.SCKM	CD data shift clock		O	4.8	4.8	4.8	4.8
119	CD.ON	CD power control		O	4.8	4.8	4.8	4.8
120	CC.ON	Tape power control		O	4.8	0	0	4.8
121	VDD	+5V power supply		-	4.8	4.8	4.8	4.8
122	VSS	GND		-	0	0	0	0
123	XTAL2	Crystal oscillator		-	2.2	2.2	2.2	2.2
124	XTAL1	Crystal osillator		-	2.1	2.1	2.1	2.1
125	VSS	GND		-	0	0	0	0
126	XTAL3	Crystal oscillator		-	1.2	1.2	1.2	1.2
127	XTAL4	Crystal oscillator		-	2	2	2	2
128	/RSTIN	Reset input		I	4.7	4.7	4.7	4.7

Note : Voltage measuerments are with respect to ground, with a voltmeter (internal resistance : 10M ohms).

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AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

8.2.CD Servo Block

IC201 : MN662783RPW

Pin	Port	Descriptions	I/O	Vol.
No.				(V)
1	VDD	+5V power supply	-	5.0
2	D0	D-RAM data	I/O	2.3
3	D1	D-RAM data	I/O	1.8
4	/WE	D-RAM data write	O	4.9
5	/RAS	D-RAM row address strobe	O	3.4
6	D2	D-RAM data	I/O	0.8
7	D3	D-RAM data	I/O	0
8	/CAS0	D-RAM columun address strobe	O	3.9
9	/CAS1	D-RAM columun address strobe	O	0
10	A8	D-RAM address	O	0.6
11	A7	D-RAM address	O	1.1
12	A6	D-RAM address	O	0.7
13	A5	D-RAM address	O	0
14	A4	D-RAM address	O	1.1
15	A9	D-RAM address	O	0.4
16-18	A0	D-RAM address	O	1.0
19	A3	D-RAM address	O	0
20	VSS2	Ground	-	0
21	VDD2	+5V power supply	-	5.0
22,23	-	Not used	-	-
24	TVD	Traverse motor control	O	2.5
25	PC	Not used	-	-
26	ECS	Spindle motor control	O	2.4
27	TRD	Tracking coil drive	O	2.5
28	FOD	Focus coil drive	O	2.4
29	FBAL	Focus balance	O	1.9
30	TBAL	Tracking balance	O	3.0
31	VREF	Refence voltage	I	2.5
32	FE	Focus error	I	2.5
33	TE	Tracking error	I	2.5
34	RFENV	RF envelope	I	2.5
35	OFT	Off track signal	I	0
36	/RFDET	RF detecting signal	I	0
37	BDO	Drop-out signal	I	0
38	LDON	Laser on signal	O	4.5
39	ARF	RF signal	I	2.5
40	IREF	Reference current input	I	1.2
41	DRF	Bias for DSL	I	2.4
42	DSLF	Loop filter for DSL	I/O	2.5
43	DSLF2	Loop filter for DSL	I/O	2.2
44	PLLF	Loop filter for PLL	I/O	1.4
45	VCOF	Not used	-	-
46	AVDD2	+5V power supply	-	5.0
47	AVSS2	Ground	-	0
48	OUTL	L channel output	O	2.3
49	AVSS1	Ground	-	0
50	OUTR	R channel output	O	2.3
51	AVDD1	+5V power supply	-	4.7
52-54	-	(Connecting to ground)	-	0
55	FLAG	Flag output	O	0
56	FCLK	Frame clock	O	0
57-59	-	Not used	-	-
60	TX	Not used	-	-
61	MCLK	Clock for I/F command	I	1.0
62	MDATA	Date for I/F command	I	3.1
63	MLD	I/F command load	I	5.0
64	BLKCK	Subcode block clock	O	0
65	SQCK	Ext.clock for sub code-Q	I	5.0
66	SUBQ	Code for sub. code-Q	O	3.8
67	DMUTE	Mute input	I	0
68	STAT	Status signal	O	5.0
69	/RST	Reset input	I	5.0
70	CSEL	(Connecting to ground)	-	0
71	PMCK	Clock output	O	2.5
72	SMCK	Clock output	O	2.5
73	SUBC	Serial data of sub code	O	0
74	SBCK	Shift clock for SUBC	I	0.6
75	/CLDCK	Not used	-	-
76	/TEST	(Connecting to VDD)	-	5.0

Pin	Port	Descriptions	I/O	Vol.
No.				(V)
77	X1	Crystal oscillator	-	0.4
78	X2	Crystal oscillator	-	3.2
79	VDD1	+5V power supply	-	5.0
80	VSS1	Ground	-	0

IC301 : MN1873260AB4

Pin	Port	Descriptions	I/O	Vol.
No.				(V)
1	VDD	+5V power supply	-	5.0
2	OSC2	Crystal oscillator	-	2.2
3	OSC1	Crystal oscillator	-	2.1
4	VSS	Ground	-	0
5	XI	(Connecting to ground)	-	0
6	XO	Not used	-	-
7	CM	(Connecting to ground)	-	0
8	VREFH	Reference voltage	I	5.0
9	SW13	Shuter SW	I	4.9
10	SW12	Horizontal origin	I	4.9
11	SW11	Clump SW	I	0
12	SW10	Play SW	I	0
13	SW4	Shuter SW	I	4.9
14	SW3	Tray origin SW	I	0
15	SW2	Inner SW	I	4.8
16	SW1	Outer SW	I	4.9
17	VREFL	(Connecting to Ground)	-	0
18	/RESET	Reset input	I	4.9
19	-	(Ground pull-down)	-	0
20	SCKM	Clock for serial data	I	5.0
21	SIM	CD changer serial data	I	1.3
22	SOM	CD changer serial data	O	4.3
23	SQCK	Ext. clock for sub. code-Q	O	5.0
24	SUBQ	Code for sub. code-Q	I	1.6
25	-	Not used	-	-
26	-	(Ground pull-down)	-	0
27	CD.ON	CD changer start/stop	I	5.0
28	-	Not used	-	-
29	BLKCK	Sub. code block clock	I	0
30	P.ON	In operation CPU	O	5.0
31	MUTE	Mute output	O	5.0
32	-	(Ground pull-down)	-	0
33	SENS	Servo status	O	0
34	CLVS	Servo status	O	5.0
35	FLOCK	Focus servo lock	O	0.2
36	TLOCK	Tracking servo lock	O	0
37	VMI	Horizontal motor control	O	2.5
38	HMI	Vertical motor control	O	0
39	HVMUTE	H/V motor mute	O	0
40-42	-	(Ground pull-down)	-	0
43	SW9	Disc-in (B) SW	I	0
44	SW8	Disc-in (L) SW	I	0
45	SW7	Disc-in (F) SW	I	0
46	SW6	Disc push SW	I	0
47	SW5	Tray hight SW	I	4.5
48	BDO	Drop-out signal	I	0
49	DQSY	Not used	-	-
50	/RST	Reset output	O	5.0
51	STAT	Status signal	I	2.1
52	DMUTE	Mute output	O	0
53	XE	Not used	-	-
54	P.DOWN	Power down signal	O	0
55	-	No connection	-	-
56	MLD	I/F command load	O	5.0
57	MDATA	Data for I/F command	O	3.1
58	MCLK	Clock for I/F command	O	4.1
59	SPMT	Spindle mute	O	5.0
60	MUTE12	Focus/Tracking mute	O	0
61	MUTE4	Loading motor mute	O	4.8
62	LDOI	Loading motor control	I/O	2.5
63	TRV	Forced traverse control	I/O	2.4
64	SYNC	Not used	-	-

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AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

9 PACKAGE AND IC BLOCK DIAGRAM

9.1.Main Block

IC105 : YEAMLC72146T

PA101 : J3CCAB000001

IC205, 382 : YEAMPC4570T1

PA102 : YEAU03SMX01

ICIC281 : C1BA00000311

IC101, 103 : AN6564NST1

IC705 : YEAMS2922ADF

IC102, 104, 204 : C0ABCB000005

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AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L

IC704 : MN1382QTX

IC715 : MN1382JP

IC710 : YEAMLB1930MT

IC706 : YEAM2951MT

IC713 : C0EBM0000005

IC707 : C1EB00000039

IC881 : C1EB00000042

9.2.CD Servo Block

IC601 : YEAMBA5971FP

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