Panasonic CQ-JA1924L, CQ-JA1920L Service Manual

ORDER No. AED0101023

AUTOMOTIVE ELECTRONICS

AUDI CQ-JA1920L CQ-JA1924L

AM/FM MPX ELECTRONIC TUNING RADIO with Stereo Cassette Tape Player and CD Player

AUDI No. (CQ-JA1920L) : 8D0 035 195E AUDI No. (CQ-JA1924L) : 8Z0 035 196 VEHICLE (CQ-JA1920L) : Audi A4 VEHICLE (CQ-JA1924L) : Audi A2

Specification

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

Test Voltage 13.2V

Negative Ground Current Consumption Less than 4.0A Power Output 12W×12W Speaker Impedance 4Ω

AM Radio Frequency Range 531 - 1,6020kHz Signal to Noise Ratio 23dB(µV) (S/N 20dB)

FM Stereo Radio Frequency Range 87.5 - 108.0MHz Usable Sensitivity 5dB/µV (S/N 30dB)

CD Player Signal to Noise Ratio More than 90dB Channel Separation More than 80dB

DESTINATION : Europe SALE DATE : May., 2000

Total Harmonic Distortion Less than 0.02%

Tape Player Reproduction System 4-Track, 2-Program Stereo Tape Speed 1-7/8” (4.76cm/sec) Signal to Noise Ratio More than 42dB Wow and Flutter 0.09% (WRMS) Stereo Separation More than 30dB

Dimensions** 178×164.5×110mm

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

** Dimensions and Weight shown are approximate. Doldy 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-JA1920L / CQ-JA1924L

CONTENTS

Page Page

1 FEATUERS 2 2 LASER PRODUCTS 3 REAR VIEW AND CONNECTORS 4 FRONT VIEW AND FUNCTIONS 5 ALIGNMENT INSTRUCTIONS 6 ALIGNMENT POINTS 7 WIRING CONNECTION 8 BLOCK DIAGRAM 9 TERMINALS DESCRIPTION 10 PACKAGE AND IC BLOCK DIAGRAM

11 REPLACEM ENT PARTS LIST 16

12 EXPLODED VIEW (Unit)

13 CD PLAYER PARTS 14 EXPLODED VIEW (CD Deck)

3 4

15 TAPE PLAYER PARTS

16 EXPLODED VIEW (Tape Deck) 17 WIRING DIAGRAM

5 6

18 SCHEMAT IC DIAGRAM -1

19 SCHEMAT IC DIAGRAM -2

25 26 28 29 30 31 40 41

1 FEATUERS

∙

PLL (Phase Locked Loop) synthesized tuning.

∙

24-station preset (12-AM, 12-FM).

∙

RDS function.

∙

Diversity function.

∙

Dolby Noise Reduction System.

∙

CD changer control.

∙

BOSE specification correspondence.

∙

Anti-theft system.

∙

CAN-BUS I/F.

2 LASER PRODUCTS

3 REAR VIEW AND CONNECTORS

4 FRONT VIEW AND FUNCTIONS

AUDI / CQ-JA1920L / CQ-JA1924L

5 ALIGNMENT INSTRUCTIONS

5.1. Alignment Conditions

∙

Power Supply Voltage : DC13.2V

∙

Output Impedance : 4

∙

Output Power : 0.5W

Note :

Do not align the FM/AM package block. When the package block is necessary, it will be supplied already aligned at the factory.

5.2. Dolby NR Alignment

Step Alignment Item Test Tape VTVM Connection Adjust Remarks

(1) DOLBY NR Rch RFKZ0038 TP271 VR271 Adjust for 388mV ±0.5dB (2) DOLBY NR Lch RFKZ0038 TP371 VR371 Adjust for 388mV ±0.5dB

Ω

∙

Balance, Fader Control : center

∙

Bass, Treble Control : Center

∙

Dolby NR: OFF

6 ALIGNMENT POINTS

7 WIRING CONNECTION

AUDI / CQ-JA1920L / CQ-JA1924L

8 BLOCK DIAGRAM

8.1. Main Block

8.2. CD Servo Block

AUDI / CQ-JA1920L / CQ-JA1924L

9 TERMINALS DESCRIPTION

9.1. Main Block

IC621 : C2CBKJ000009

Pin No.

1 MD1 (Connecting to VDD) - 5.2 2 MD2 MPU mode setting I 4.4 3 NC No connector - 4 NC No connector - 5 CD RESET CD reset O 5.1 6 CD ON CD controller enable O 5.1 7 TIM-SP TIM O 0 8 TIM-ST TIM strobe O 0

9 VSS Ground - 0 10 TIM-REC/PLAY TIM recode/play O 0 11 VCC +3V power supply - 3.0 12 PLL CE PLL chip enable O 0 13 PLL CLK PLL clock O 0 14 PLL DI PLL data O 0 15 VSS Ground - 0 16 PLL DO PLL data I 4.9 17 PVCC1 +5V power supply - 5.2 18 NC No connector - 19 DSP-SI DSP serial data O 0 20 DSP-CLK DSP Clock for serial data O 5.2 21 DSP-RST DSP reset O 0 22 DSP-WRQ DSP data write request O 0 23 DSP-WRDY DSP write ready I 0 24 DSP-CS DSC chip select O 5.1 25 6.5V-DET 6.5V detection I 5.2 26 FLASH-TXD2 Not used - 27 FLASH-RXD2 Not used - 28 AF-MUTE Audio mute control O 5.1 29 VSS Ground - 0 30 MUTE1 Mute control O 5.1 31 MUTE2 Mute control O 5.1 32 F.IN Tape loading motor control O 0 33 R.IN Tape loading motor control O 0 34 CAN-IRQ CAN BUS request I 5.2 35 NC No connector - 36 NC No connector - 37 R.CONT Radio power control - 5.1 38 ILL1 Illumination signal I 2.5 39 IF CONT IF counter O 5.1 40 CLK Clock for the second display O 0 41 DATA Data for the second display O 0 42 ENA-IN Enable for the second display I 0 43 ENA-OUT Enable for the second display O 5.1 44 E2-CLK Clock for security EEPROM

45 E2-DI Security EEPROM data O 0 46 E2-DO Security EEPROM data I 0 47 E2-CE Security EEPROM enable O 0 48 VSS Ground - 0 49 AMP+ Ext. Amp. control O 5.1 50 PVCC1 +5V power supply - 5.2 51 CLK Clock for power control IC O 0 52 DATA Data for power control IC O 0 53 LATCH Data latch O 5.1 54 STBY Power control IC standby O 5.1 55 COM-CNT +10V power switch O 5.1 56 MSOUT Tape MS detection I 3.9 57 T.LOAD Tape loading I 4.7 58 A/B Tape side detection I 0 59 T.IN Tape insert detection I 4.7

Port Description I/O (V)

O 0

data

60 PVCC2 +5V power supply - 5.2 61 +B DET Battery level detection I 4.8 62 VSS Ground - 0 63 CD REMO CD CH remocon data O 5.1 64 CD DATA CD CH data I 0 65 CD CLK CD CH clock I 0 66 CAN-TDO CAN BUS data I 0 67 VSS Ground - 0 68 VSS Ground - 0 69 CAN-RDI CAN BUS data O 4.8 70 S.CONT Key status signal I 5.2 71 P-ON SW Power on SW I 4.7 72 P-SI Serial data for panel O 5.1 73 P-SO Serial data for panel I 0 74 P-CLK Clock for panel O 5.1 75 NC No connector - 76 PLL VCC PLL power supply I 3.0 77 PLL CAP Filter for PLL Vcc - 1.5 78 PLL VSS Ground - 0 79 RES Reset I 4.7 80 MNI (Connecting to VCC) - 5.2 81 STBY Power control IC standby O 5.2 82 FWE (Ground pull-down) - 0 83 XTAL Crystal oscillator - 2.1 84 VCC +3V power supply - 3.0 85 XTAL Crystal oscillator - 1.7 86 VSS Ground - 0 87 OSC1 (Connecting to Vcc) - 3.0 88 OSC2 Not used - 89 PVCC1 +5V power supply - 5.2 90 ILL2 Illumination signal I 0 91 VSS Ground - 0 92 PANEL RESET Reset output O 5.2 93 CAN RESET CAN BUS reset O 4.8 94 GALA GALA input I 0 95 CONT Control signal detection I 4.7 96 S.REMOCON Remocon data I 5.1 97 ANT CNT2 Motor antenna control O 5.0 98 R CLK Clock for RDS data I 2.5

99 NC No connector - 100 NC No connector - 101 AVCC +5V power supply - 5.2 102 VREF Reference voltage terminal - 5.2 103 VCONT AM/FM level detection I 0 104 MP Multi-path detection I 0 105 NOISE FM noise level detection I 1.7 106 DSP-MON (+5V pull-up) I 4.4 107 IGN IGN signal input I 5.2 108 T.MUTE Telephone mute I 4.7 109 N. CONT Navi control I 4.7 110 R DATA RDS data I 2.5 111 CD-EJECT CD eject SW I 4.7 112 E-A Tape end detection I 0 113 E-B Tape end detection I 0 114 EQ Metal tape detection I 0 115 Bit 3 Tape mode SW I 0 116 Bit 2 Tape mode SW I 0 117 Bit 1 Tape mode SW I 0 118 TA.MON TA monitor I 0 119 AVSS Ground - 0 120 TIM-CA0 TIM phrase setting O 0 121 TIM-CA1 TIM phrase setting O 0 122 TIM-CA2 TIM phrase setting O 0 123 TIM-CA3 TIM phrase setting O 0 124 TIM-DEL TIM delete O 5.1 125 CD SCKM CD serial clock I 0

126 CD SOM CD serial data I 0 127 CD SIM CD serial data O 1.4 128 MD1 (Connecting to VDD) - 5.2

Note 1 : Voltage measuerments are with respect to ground, with a voltmeter (internal resistance : 10M ohms).

IC901 : C2BBGD000016

No.

1 MSM MS gain control O 0

2,3 - No connection - -

4 VSSI Ground - 0 5 RX0 Communication data I 5.2 6 RX1 (+5V pull-up) - 5.2 7 VDDI +5V power supply - 5.2 8 RDI CAN-BUS data I 4.9 9 SCLK Not used - -

10 TDO CAN-BUS data O 0

11-13 - No connection - -

14 IF+C IF count I 4.8 15 ANT+ Motor antenna control I 0 16 - No connection - 17 VRL (Connecting to ground) - 0 18 VRH (Connecting to VDD) - 5.2 19 AMP+ Ext. Amp power I 4.9 20 VDD +5V power supply - 5.2 21 +BMONI +B monitor I 3.0 22 SP-L SP Lch level detection I 3.0 23 SP-R SP Rch level detection I 3.1 24 P-ANT Antenna short detection I 1.8 25 - No connection - 26 CANE (Connecting to VDD) - 5.2 27 VPP (Connecting to VDD) - 5.2 28 OSC1 Crystal oscillator - 1.8 29 OSC2 Crystal oscillator - 2.7 30 /RESET Reset input I 0

31 IRQ (CAN-BUS data) I 4.9 32,33 - No connection - 34-36 - (Connecting to ground) - 0

37 MODE C Audio mode selection O 4.9

38 MODE B Audio mode selection O 0

39 MODE A Audio mode selection O 0

40 SP CONT Speaker control O 0

41 WAKE OUT CAN BUS request O 5.2

42 PA2 (NERR) Error/Time out signal I 0

43 PA1 (STB) Data strobe O 0

44 PA0 (EN) Chip enable O 0

45 TX0 Communication data O 5.2

46 TX1 Not used - 0

47 - No connection - -

48 T-RDI CAN-BUS data I 4.8

49 T-TDO Not used - -

50 T-SCLK Not used - -

51 AS-C Speaker out mute O 5.1

52 AS-B Speaker out mute O 5.1

53 AS-A Speaker out mute O 5.1 54-57 - No connection - -

58 VSS Ground - 0

59 M2F Tape main motor control O 0

60 MS Tape MS mode control O 4.9

61 F/R Tape F/R control O 4.9

62 EQ Metal tape select O 4.9

63 NRSW Dolby mode selection O 0.3

64 - No connection - -

Port Description I/O (V)

AUDI / CQ-JA1920L / CQ-JA1924L

9.2. DSP Block

IC801 : YEAMAK7712AF

Pin No.

1 TSTI Not used - -

2-4 - (Connecting to ground) - 0

5 /PD (Connecting to VDD) - 5.0 6 /RST Reset input I 0

7-9 - Not used - 10,11 DVB +5V power supply - 5.0 12-19 - Not used - -

20 SMODE (Connecting to VDD) - 5.0

21-23 - Not used - -

24 DVDD +5V power supply - 5.0 25 DVSS Ground - 0 26 XTI Crystal oscillator - 2.6 27 XTO Crystal oscillator - 2.4 28 TSTI2 (Connecting to VDD) - 5.0 29 /CS DSP chip select I 5.2 30 /WRQ DSP data write request I 5.2 31 DVSS Ground - 0 32 DVDD +5V power supply - 5.0 33 SCLK DSP clock I 5.2 34 SI DSP serial data I 0 35 WRDY DSP write ready O 0 36 DRDY DSP write ready O 0 37 SO DSP serial data O 0

38-48 - Not used - -

49 DVSS Ground - 0 50 DVDD +5V power supply - 5.0

51-68 - Not used - -

69 DVSS Ground - 0 70 DVDD +5V power supply - 5.0

71,72 Ground - 0

73 DVDD +5V power supply - 5.0 74,75 DVB +5V power supply - 5.0 76-78 - Not used - -

79 AVB +5V power supply - 5.0 80,81 AOUT R2,L2 Audio-Rear output O 2.5

82 NC No connection - 83,84 AOUT R1,L1 Audio-Front output O 2.5 85,86 Ground - 0 87,88 +5V power supply - 5.0

89 NC No connection - -

90 AINR- Audio Rch (-) input I 2.3

91 AINR+ Audio Rch (+) input I 2.5

92 AINL- Audio Lch (-) input I 2.3

93 AINL+ Audio Lch (+) input I 2.5

94 VCON Voltage control - 2.5 95,96 Ground - 0

97 AVDD +5V power supply - 5.0 98,99 +5V power supply - 5.0

100 NC No connecion - -

Port Description I/O (V)

9.3. Display Block

IC611 : C2BBFE000091

No.

1-8 - Not used - -

9 GND Ground - 0

10,11 - Not used - -

12 TUNE.UP Tune up switch I 0

13 TUNE.DOWN Tune down switch I 0

14 VOL.UP Volume up switch I 5.0

15 VOL.DWN Volume down switch I 0

Port Description I/O (V)

AUDI / CQ-JA1920L / CQ-JA1924L

16 TUNE.PUSH Tune push switch I 5.0 17 - No connection - -

18-23 D0-5 LCD control data O 0

24 GND Ground - 0

25,26 D6,7 LCD control data O 0

27 SCAN.LED SCAN LED on/off O 10.2 28 P.SCAN.LED P.SCAN LED on/off O 10.2 29 RBDS.LED RBDS LED on/off O 0 30 RANDOM.LED RANDOM LED on/off O 0.4 31 E LCD driver enable O 0 32 ILL 1 Illumination control O 0 33 ILL 2 Illumination control O 0 34 RESET LCD reset O 0 35 RESET Reset input I 4.7 36 KI1 Key data I 0 37 LED.DATA LED control data O 0 38 LED.CLK LED control clock O 0 39 LED.R.CLK LED control clock O 0 40 VDD +5V power supply - 5.2 41 X2 Crystal oscillator - 3.0 42 X1 Crystal oscillator - 1.7 43 IC (Connecting to ground) - 0 44 - No connection - 45 KI2 Key data I 0 46 AVSS Ground - 0

47 PHOTO.IN Photo sensor data I 0 48,49 KO2,1 Key scan O 0 50-53 KI3-6 Key data I 0

54 AO LCD driver select O 0

55 AVDD +5V power supply - 5.2

56 AVREF +5V power supply - 5.2

57 PANEL.SI Serial data for panel I 5.1

58 PANEL.SO Serial data for panel O 0

59 PANEL.CLK Clock for panel I 5.0 60,61 KO3,4 Key scan O 0

62 K-LINE IN K-line data I 5.2

63 K-LINE OUT K-line data O 5.2

64 KO5 Key scan O 0

IC612 : YEAMNJU6450G

Pin No.

1,2 COM7,8 LCD common signal O 0.1

3-10 - No connection - -

11-70 SEG59-0 LCD segment data O 0.1

71 AO LCD driver select I 0

72 OSC1 Oscillator terminal - 1.9

73 OSC2 Oscillator terminal - 2.0

74 E LCD driver enable I 0

75 R/W (Connecting to ground) - 0

76 GND Ground - 0 77-84 D0-7 LCD control data I 0

85 P.ON.5V +5V power supply - 4.9

86 RESET Reset input I 5.2

87 - No connection - -

88 V5 Reference voltage setting - -4.7

89 V3 Reference voltage setting - -0.8

90 V2 Reference voltage setting - 1.1

91 M/S (Connecting to +5V) - 4.9

92 V4 Reference voltage setting - -2.8

93 V1 Reference voltage setting - 3.0

94-

100

Port Description I/O (V)

COM0-6 LCD common signal O 0.1

9.4. CD Servo Block

IC401 : YEAMCXD2597Q

Pin No. Port Description I/O (V)

1 SQSO Sub Q-cord data O 0.5 2 SQCK Sub Q-cord read clock I 4.9 3 XRST System reset I 4.9 4 SYSM Mute input I 4.9 5 DATA Serial data I 3.4 6 XLAT Serial data latch I 4.9 7 CLOK Data shift clock I 4.0 8 SENS SENS output O 0.8

9 SCLK SENS read clock I 5.1 10 VDD +5V power supply - 4.9 11 ATSK Anti-shock signal I/O 0 12 SPOA (Connecting to ground) - 0 13 SPOB (Connecting to ground) - 0 14 XLON Access mode selection O 4.4 15 WFCK Not used - 16 XUGF XUGF output O 0 17 XPCK XPCK output O 0 18 GFS GFS output O 4.1

19, 20 - Not ised - -

21 COUT Track count I/O 0 22 MIRR Mirror signal I/O 0 23 DFCT Defect signal I/O 0 24 FOK Focus OK signal I/O 4.5 25 LOCK GFS sampling status I/O 4.5 26 MDP Spindle motor control O 2.5 27 SSTP (Connecting to ground) - 0 28 SFDR Sled drive O 1.1 29 SRDR Sled drive O 0 30 TFDR Tracking drive O 0 31 TRDR Tracking drive O 0 32 FFDR Focus drive O 0 33 FRDR Focus drive O 0.4 34 VSS Ground - 0

35-37 - (Connecting to ground) - 0

38 VC Middle point voltage input I 2.3 39 FE Focus error I 2.6 40 SE Sled error I 2.0 41 TE Tracking error I 2.2 42 RFDC RF signal I 3.2 43 AVSS0 Ground - 0 44 IGEN OP-amp constant-current input I 2.3 45 AVDD0 +5V power supply - 4.9 46 ASYO EFM full-swing output O 1.6 47 ASYI asymmetrical comparison

voltage 48 BIAS asymmetrical constant-current I 2.4 49 RFAC EFM signal input I 2.3 50 AVSS3 Ground - 0 51 CLTV VCO1 control voltage I 2.3 52 FILO PLL filter O 0 53 FIFI PLL filter I 1.8 54 PC0 PLL charge-pump O 1.8 55 AVDD3 +5V power supply - 4.9 56 VCTL VCO2 control voltage I 2.4 57 VPCD EFM PLL charge-pump O 2.5 58 VSS Ground - 0 59 VDD +5V power supply - 4.9

60-64 - Not used - -

65 XVDD Power supply for master clock - 4.9 66 XTAI Crystal oscillator - 1.7 67 XTAO Crystal oscillator - 3.9 68 XVSS Ground - 0

I 2.6

69 AVDD1 +5V power supply - 4.9 70 AOUT1 Lch audio output O 2.0 71 AIN1 Lch OP-amp input I 2.0 72 LOUT1 Lch line-out O 2.0 73 AVSS1 Ground - 0 74 AVSS2 Ground - 0 75 LOUT2 Rch line-out O 2.0 76 AIN2 Rch OP-amp input I 2.0 77 AOUT2 Rch audio output O 2.0 78 AVDD2 +5V power supply - 4.9

79, 80 - Not used - -

IC451 : C2BBFC000021

Pin No. Port Description I/O (V)

1 NC No connection - 2 SQSO Sub Q-cord data I 0.5 3 CLKOFF LSI clock stop O 5.0 4 SCKM Data shift clock O 5.0 5 MUTE Analog mute O 0 6 SOM Serial data O 0 7 PLLOFF Not used - 8 SIM Serial data I 1.5

9 TNNER Inner switch I 4.4 10 OUT Disc-out detection I 4.2 11 IN Disc-in detection I 4.2 12 CLAMP Disc clamp detection I 0 13 PC0 Spindle motor driver on/off I/O 0 14 PC2 Loading motor driver on/off I/O 5.1 15 VREF +5V power supply - 5.1

16,17 NC No connection - -

18 XIN Crystal oscillator - 1.8 19 XOUT Crystal oscillator - 2.6 20 NC No connection - 21 AVSS Ground - 0 22 VSS Ground - 0 23 VCC +5V power supply - 5.1 24 NC (Connecting to ground) - 0 25 XCIN Not used - 26 LOCK Spindle PLL lock detection I 4.5 27 NC No connection - 28 /RST CPU reset I 4.8 29 NC No connection - 30 CDON CPU operation enable I 0 31 ATSK Anti-shock signal I 0 32 FOK RF level detection I 4.5 33 MIRR Mirror signal detection I 0 34 ATSK Anti-shock signal I 0 35 LOD Loading motor control I/O 2.3 36 PC1 Actuator motor drive on/off I/O 0 37 MODE Access mode selection O 0 38 SCLK SENS read clock O 5.1 39 SENS Servo LSI status I 0.7 40 CLOK Servo LSI data shift clock O 4.1 41 XLAT Serial data latch O 5.0 42 DATA Serial data O 3.5 43 SYSM LSI mute O 0 44 NC No connection - 45 CDON Not used - 5.0

46- 49 - Not used - -

50 /RST Not used - 4.8 51 VSS Ground - 0 52 P53 Not used - 53 XRST Servo LSI reset O 5.1 54 SQCK Sub Q-cord read clock O 5.1

55,56 - Not used - -

AUDI / CQ-JA1920L / CQ-JA1924L

10 PACKAGE AND IC BLOCK DIAGRAM

10.1. Main Block

IC267 : YEAMPD4052BG

PA101 : YEP0PTA533A0

IC281 : AN7190NKLC

IC282 : YEAMCX2510AQ

AUDI / CQ-JA1920L / CQ-JA1924L

IC501 : YEAMS6789A

IC502 : YEAMS6684B

IC503 : YEAM74HC595T

IC601 : C0EBM0000005

AUDI / CQ-JA1920L / CQ-JA1924L

IC602 : YEAMS2922ADF

IC711 : YEAMLB1930MT

IC603 : AN8065SE1

IC625 : YEAMNJU7660M

IC703 : C0DBZHZ00002

IC701 : YEAMLC72146T

IC902 : C1EB00000036

+ 32 hidden pages