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

Specification*

General

Power Supply DC 12V (11V - 16V),

Test Voltage 14.4V

Negative Ground

Current Consumption Less than 2.5A (0.5W×4ch)

Power Output 12W×2ch

Speaker Impedance 4Ω

LW Radio

Frequency Range 153 - 279kHz

Usable Sensitivity 18dB/µV (S/N 20dB)

MW Radio

Frequency Range 531 - 1,602kHz

Usable Sensitivity 14dB/µV (S/N 20dB)

FM Stereo Radio

Frequency Range 87.5 - 108.0MHz

Usable Sensitivity 12dB/µV (S/N 30dB)

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.

Tape Player

Signal to Noise Ratio 55dB (IHF-A)

Wow and Fuluter Less than 0.3%

ICD Player

Signal to Noise Ratio More than 60dB (IHF-A)

Channel Separation More than 50dB (IHF-A)

Dimensions** 179(W)×110(H)×163(D)mm

Weight** 3.1kg

* Specifications and the design are subject to possible modification without notice due to improvements.

** Dimensions and Weight shown are approximate.

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

“Dolby” and the double-D symbol Laboratories Licensing Corporation.

are trade marks of Dolby

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

CONTENTS

Page Page

1 PART No. AND VEHICLE 2

2 FEATUERS

3 LASER PRODUCTS

4 FRONT VIEW AND FUNCTIONS

5 REAR VIEW AND CONNECTORS

6 WIRING CONNECTION

7 BLOCK DIAGRAM

8 TERMINALS DESCRIPTION

9 PACKAGE AND IC BLOCK DIAGRAM

10 CD DISC CENTERING ALIGNMENT

11 REPLACEMENT PARTS LIST

12 EXPLODED VIEW (Unit) 24

13 CD CHANGER PARTS LIST

14 EXPLODED VIEW (CD Deck-1)

15 EXPLODED VIEW (CD Deck-2)

16 EXPLODED VIEW (CD Deck-3)

17 TAPE PLAYER PARTS

18 EXPLODED VIEW (Tape Deck)

19 WIRING DIAGRAM

20 SCHEMAT IC DIAGRAM -1

21 SCHEMAT IC DIAGRAM -2

1 PART No. AND VEHICLE

[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

2 FEATUERS

PLL (Phase Locked Loop) synthesized tuning.

12-FM, 12-AM presets with preset scan

Dolby noise reduction.

NCD-8 CD player.

CD Changer control.

3 LASER PRODUCTS

4 FRONT VIEW AND FUNCTIONS

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

5 REAR VIEW AND CONNECTORS

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

6 WIRING CONNECTION

7 BLOCK DIAGRAM

7.1. Main Block

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

7.2. Tuner / Display Block

7.3. AMP Block

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

7.4. CD Servo Block

8 TERMINALS DESCRIPTION

8.1. Main Block

IC701 : C2CBK A000001

Port Descriptions I/O

No.

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

13 LCD/E2.DT.INLCD/SEC. serial data O 0 0 0 0

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

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

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

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

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

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

clock

detection

interference

detection

interference

CD start/stop O 0 0 0 0

(V)FM(V)AM(V)CD(V)

O 0 0 0 0

I 0.9 0.6 0.6 0.6

I 2.9 0 0 0

I 1.2 1.2 1.2 1.2

I 0 0 0 0

(v)

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

Port Descriptions I/O

No.

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

(V)FM(V)AM(V)CD(V)

(v)

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

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

8.2. CD Servo Block

IC201 : MN662783RPW

Pin No.

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

Port Descriptions I/O Vol.

(V)

Pin No.

77 X1 Crystal oscillator - 0.4

78 X2 Crystal oscillator - 3.2

79 VDD1 +5V power supply - 5.0

80 VSS1 Ground - 0

Port Descriptions I/O Vol.

IC301 : MN1873260AB4

Pin No.

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 - -

Port Descriptions I/O Vol.

(V)

AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072 L / CQ-EA1073 L / CQ-EA1074L

9 PACKAGE AND IC BLOCK DIAGRAM

9.1. Main Block

PA101 : J3CCAB000001

IC105 : YEAMLC72146T

PA102 : YEAU03SM X01

IC205, 382 : YEAMPC4570T1

ICIC281 : C1BA00000311

IC101, 103 : AN6564NST1

IC102, 104, 204 : C0ABCB000005

IC705 : YEAMS2922ADF

AUDI / CQ-E A1070L / CQ-E A1071L / CQ-EA1072 L / CQ-E A1073L / CQ- EA1074L

IC704 : MN1382QTX

IC715 : MN1382JP

IC710 : YEAMLB1930MT

IC706 : YEAM2951MT

IC707 : C1EB00000039

9.2. CD Servo Block

IC713 : C0EBM0000005

IC881 : C1EB00000042

IC601 : YEAMBA59 71FP

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