Panasonic CQLA-1923-L Service manual
ORDER No. AED0109020
AUTOMOTIVE ELECTRONICS
AUDI
CQ-LA1923L
AM/FM/RDS RADIO with Stereo
Cassette Tape Player / CD Changer
Control
AUDI PART No. : 8L0 035 186A
VEHICLE : AUDI A3
DESTINATION : Europe
PRODUCED AFTER : Dec., 1999
Specifications*
General
Power Supply DC 12V DC Negative ground
Test Voltage 13.2V
Current Consumption Less than 3.0A (at 0.5W)
Maximaum Power Output 12W×12W
AM Radio
Frequency Range 531-1,602kHz
Usable Sensitivity 23dB/µV (S/N 20dB)
Seek Sensitivity 40dB/µV
FM Stereo Radio
Frequency Range 87.5-108.0MHz
Usable Sensitivity 8dB/µV (S/N 30dB)
Seek Sensitivity 25dB/µV
Tape Player
Reproduction System 4-Track,2-Program Stereo
Tape Speed 4.76cm/sec
Dimensions** (W×H×D) 184×51.5×160mm
Weight** 1.6kg
* 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
© 2001 Matsushita Communication Industrial Co.,
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
AUDI / CQ-LA192 3L
CONTENTS
Page Page
1 FEATURES 2
2 REAR VIEW AND CONNECTORS
3 FRONT VIEW AND FUNCTIONS
4 WIRING CONNECTION
5 BLOCK DIAGRAM
6 TERMINALS DESCRIPTION
7 PACKAGE AND IC BLOCK DIAGRAM
1 FEATURES
·
Negative Displayed LCD (8-figures, 5×7 dots)
·
Traffic Information Memory
·
SEEK Up/Down, SCAN Up function
·
CD Changer Contorol function
·
Dolby B Noise Reduction
8 ALIGNMENT INSTRUCTIONS 11
2
9 ALIGNMENT POINTS
3
10 REPLACEMENT PARTS LIST
11 EXPLODED VIEW (Unit)
3
4
12 WIRING DIAGRAM
6
13 SCHEMAT IC DIAGRAM -1
14 SCHEMAT IC DIAGRAM -2
8
·
Steering Remoto Control
·
Untitheft System
·
GALA System (Auto Volume Control for a car noise)
·
Untitheft System (Code Number Memory)
·
3-Illumination Control Systems (Photo-sensor, Illumination
Control-1, Illumination Control-2)
·
Illumination Color: Audi Red
2 REAR VIEW AND CONNECTORS
11
12
19
20
25
27
2
3 FRONT VIEW AND FUNCTIONS
AUDI / CQ-LA192 3L
4 WIRING CONNECTION
3
AUDI / CQ-LA192 3L
5 BLOCK DIAGRAM
5.1. Main Block
4
5.2. AMP/Display Block
AUDI / CQ-LA192 3L
5
AUDI / CQ-LA192 3L
6 TERMINALS DESCRIPTION
6.1. MAIN BLOCK
Pin
Name Descripotion I/O VolT (V)
No.
1 RES Reset Input I 4.9 4.9 4.9
2 XTAL X-tal I 1.6 1.6 1.6
3 EXTAL X-tal I 2.3 2.3 2.3
4 MD1 Connect to Vdd
5 MD0 Connect to Vdd
6 NMI Connect to Vdd
7 STBY Connect to Vdd
8 VDD Power Supply (+5V)
9 CD-CLK Clock Input (from CD
10 CD-DATA Data Input (from CD Changer) I 0 0 0
11 CD-REMO Data Output (to CD Changer) O 4.9 4.9 4.9
12 GND Connect to Ground
13 ANT-CONT F. Antenna Votage Contorol O 4.6 4.6 4.6
14 TIM MONINTIM Memory status Input
15 S CONT
ON/OFF
16 T MUTE
ON/OFF
17 N CONT
ON/OFF
18 BATT DET Low Votage detect I 4.9 4.9 4.9
19 CONT S.Cont T.Mute N.Cont Signals
20 P-ON POWER Switch ON/OFF
21 LED CLK Clock Output (to LED) O 0 0 0
22 LED
DATA/LCD
SID
23 VOL UP Volume Up Signal Input I 0 0 0
24 VOL DOWN Volume Down Signal Input I 4.9 4.9 4.9
25 LCD
SCLK/E2
CLK
26 LCD CS LCD Chip Select O 4.9 4.9 0
27 R CLK R. Clock Output O 4.9 4.9 4.9
28 RDS CLK Clock Input (for RDS) I 2.5 0 2.5
29 VDD Power Supply (+5V)
30 V CONT Signal Strength level Input I 0.4 0.4 0.4
31 MP Multi-path Signal Input I 0 0 0
32 NOISE Noise level Signal Input I 1.3 0 1.3
33 P SENSORINPhoto Sensor Signal Input I 0 0 0
34 +B
MONITOR
35 SP-OUT R SP Output Input (for Self
36 F-ANT ANT+ Shor detect (for Self
37 SP-OUT L SP Output Input (for Self
38 GND Connect to Ground
39 RDS DATA Data Input (for RDS) I 2.5 0 2.5
40 LCD SOD Data Input (from LCD) I 4.9 4.9 4.9
41 LCD RESET Reset Output (to LCD) O 4.9 4.9 4.9
42 STANDBY Power Control Output (for
43 RADIO ON RADIO ANT VAR ON Signal
44 TIM ST Strobe Signal for TIM O 0 0 0
IC601 C2BBGG00 0014
─
─
─
─
─
Changer)
S. CONT status monitor I 0 0 0
T. MUTE status monitor I 4.9 4.9 4.9
NAVI. MUTE status monitor I 4.9 4.9 4.9
Detect
detect
Data Output (to LED TIM
LCD)
Clock Output (to LCD E2 TIM) O 4.9 4.9 4.9
+B Voltage Monitor I 3.4 3.4 3.4
Check function)
Check function)
Check function)
Audio Circuit)
Output
I 0 0 0
─
─
I 4.9 4.9 4.9
I 0 0 0
I 4.9 4.9 4.9
─
I 2.9 2.9 2.9
I 1.5 1.5 1.5
I 2.9 2.9 2.9
─
O 4.9 4.9 4.9
O 4.6 4.6 4.6
FM AM Tap
e
4.9 4.9 4.9
4.9 4.9 4.9
4.9 4.9 4.9
4.9 4.9 4.9
4.9 4.9 4.9
0 0 0
0 0 0
4.9 4.9 4.9
0 0 0
Pin
Name Descripotion I/O VolT (V)
No.
45 P-ON H LCD INDICATOR Illumination
46 WARNING
TONE(NC)
47 VDD Power Supply (+5V)
48 E2 DI Data Output (to EEPROM) O 0 0 0
49 E2 CE Chip Enable Output (to
50 GALA GALA Signal Input I 0 0 0
51 AF MUTE Audio Mute Signal Output O 4.9 4.9 4.9
52 MUTE Mute Signal Output (for Audio
53 E2 DO Data Input (from EEPROM) I 0 0 0
54 E-VOL
DATA
55 E-VOL CLK Clock Output (to Main Volume
56 GND Connect to Ground
57 PLL DI Data Output (to PLL) O 0 0 0
58 PLL DO Data Input (from PLL) I 4.9 4.9 4.9
59 PLL CLK Clock Output (to PLL) O 0 0 0
60 PLL CE Chip Enable Output (to PLL) O 0 0 0
61 MON Tape Deck Powr ON control
62 TMS Tape Music Sensor Signal
63 A/B OUT Tape Play Side (A/B) Select
64 DOLBY Doby ON/OFF Signal Output O 0 0 4.9
65 PLAY SW Play SW Signal Input (from
66 DATA OUT Data Output (to Tape Deck) O 0 0 0
67 T MONITOR Thermal Sensor Input (from
68 DATA IN Data Input (from Tape Deck) I 4.9 4.9 4.9
69 T ENA Tape Deck Enable O 4.9 4.9 4.9
70 SV ST Strobe Output (to Sub Volume
71 SV CLK Clock Output (to Sub Volume
72 SV DATA Data Output (to Sub Volume
73 GND Connect to Ground
74 S-uCOM
CLK
75 S-uCOM
DATA OUT
76 S-uCOM
DATA IN
77 ESET OUT Reset Output (to Sub CPU) O 4.9 4.9 4.9
78 K-LINE OUT Serial Data Output (to Car
79 K-LINE IN Serial Data Input (from Car
80 CLK I/O Clock In/Out (for Tape Deck) I/O 4.9 4.9 4.9
ON Signal
─ ─ ─ ─ ─
EEPROM)
Power Amp.)
Data Output (to Main Volume
Control)
Control)
Output
Input
Signal Output
Tape Deck)
Tape Deck)
Conttol)
Conttol)
Conttol)
Clock Output (to Sub CPU) O 4.9 4.9 4.9
data Output (to Sub CPU) O 4.9 2.5 1.7
Data Input (form Sub CPU) I 4.9 2 2
System)
System)
FM AM Tap
O 4.9 4.9 4.9
─
4.9 4.9 4.9
O 0 0 0
O 4.9 4.9 4.9
O 0 0 0
O 0 0 0
─
0 0 0
O 4.9 4.9 4.9
I 0 0 0
O 0 0 4.9
I 0 0 0
I 4.9 4.9 4.9
O 0 0 0
O 0 0 0
O 0 0 0
─
0 0 0
O 4.9 4.9 4.9
I 4.9 4.9 4.9
e
6
Pin
Name Description I/O Vol.
No.
1 (NC)
2 (NC)
3 P.
SENSOR
OUT
4 2ND DISP
ENA IN
5 2ND DISP
ENA OUT
6 2ND DISP
CLK
7 2ND DISP
DATA
8-16 (NC)
17 VSS Ground
18 XT1 Connect to Ground
19 (NC)
20 RESET Reset Input I 4.7
21 XTAL (X1) Connect to X-tal I 2.3
22 XTAL (X2) Connect to X-tal I 2.5
23 S-
REMCON
24 ILL 1 ILL1 (Button) Self Check Input I 4.9
25 ILL 2 ILL2 (LCD Indicator) Input I 0
26 AMP+ Self Check (AMP+) O 4.5
27 SP-OUT
CONT
28 (NC)
29 S-uCOM
DATA OUT
30 S-uCOM
DATA IN
31 S-uCOM
CLK
32 INT4 Connect to Ground
33 TI0 Connect to Ground
34 (NC)
35 INT2 Connect to Ground
36 INT1 Ground
37 Ign. Ign. Signal Input I 0
38 (NC)
39 VDD Power Supply
40 C NAVI/TEL Mix Control (C) O 0
41 B NAVI/TEL Mix Control (B) O 4.9
42 A NAVI/TEL Mix Control (A) O 4.9
43 BOSE/NOR
MAL
44 (NC)
IC604 C2ABDD000033
─ ─ ─
─ ─ ─
Photo Sensor ILL Output O 4.9
Enable Input (from 2nd Display) I 0
Enable Output (to 2nd Display) O 4.9
Clock Output (to 2nd Display) O 0
Data Output (to 2nd Display) O 0
─ ─ ─
─
─
─ ─ ─
Steering Remoto Control Input I 0
SP Self Check Control Output O 0
─ ─ ─
Data Input (from Main CPU) I 2.7
Data Output (to Main CPU) O 2.0
Clock Input (from Main CPU) I 4.9
─
─
─ ─ ─
─
─
─ ─ ─
─
BOSE/NORMAL Select Output O 4.9
─ ─ ─
(V)
4.9
AUDI / CQ-LA192 3L
6.2. DISPLAY BLOCK
Pin
No.
1-24 SEG 24-S47 Segment Signal output O 1.0
25 SEG48 (NC)
26 SEG49 (NC)
27 SEG50 (NC)
28-34 COM1-7 Common Signal output O 1.0
35 COM8 (NC)
36 COMS Common Signal output
37 V1 Connect to Power Supply
38 V2 Connect to Power Supply
0
0
0
0
0
0
39 V3 Connect to Power Supply
40 V4 Connect to Power Supply
41 V5 Connect to Power Supply
42 V5OUT3
(NC)
43 V5OUT2 Stepup Voltage output
44 GND Connect to ground
45 C1 Connect to Capacitor (for
46 C2 Connect to Capacitor (for
47 Vci Input Voltage for Voltage
48 VCC Connect to Power Supply
49 OSC1 Oscillator output I 2.4
50 OSC2 Oscillator Input O 2.5
51 CL1 (NC)
52 CL2 (NC)
53 D (NC)
54 M (NC)
55 CS Chip Select Input I 4.7
56 SCLK Serial Clock Input I 4.7
57 SID Serial Data Input I 0
58 SOD Serial Data Output O 4.7
59 NL Display Line Select Input
60 RESET Reset Signal Input I 4.7
61 TEST2 Test Terminal 1
62 TEST1 Test Terminal 3
63 GND Connect to ground
64 LED0 (NC)
65 LED1 (NC)
66 IRQ (NC)
67-71 KST0-4 Key Matrix Output O 3.9
72 KST5 (NC)
73-75 KIN0-2 Key Matrix Input I 4.6
76-77 KIN3-4 Key Matrix Input I 4.7
78-100 SEG1-23 Segment Signal output11 O 1.0
IC601 YEAMH66720F2
Name Descripotion I/O Vol.
─ ─ ─
─ ─ ─
─ ─ ─
─ ─ ─
(for Icon Segment)
(for LCD Drive)
(for LCD Drive)
(for LCD Drive)
(for LCD Drive)
(for LCD Drive)
─ ─ ─
(Vci ×2)
Voltage Stepup)
Voltage Stepup)
Stepup Circuit
─ ─ ─
─ ─ ─
─ ─ ─
─ ─ ─
─ ─ ─
─ ─ ─
─ ─ ─
─ ─ ─
(V)
O 1.0
─
2.9
─
1.0
─
1.0
─
─
O 0
─
─
─
0.8
I 3.1
─
4.8
─
─
─
─
0
0
0
0
0
0
0
0
7
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