Mazda CR-LM8160K Service Manual
ORDER No.1102
AUTOMOTIVE ELECTRONICS
MAZDA
CR-LM8160K
AM/FM MPX ELECTRONIC TUNING
RADIO [Base Unit of MASIC]
PART No. : LD50 66 AS0
ID CODE : 1168
VEHICLE : MPV
DESTINATION : North America
PRODUCED AFTER : Jan., 2002
Specifications*
General
Power Supply DC 12V (11V - 16V)
Test Voltage 14.4V
Negative Ground
Current Consumption Less than 4A ( Illumination ON )
Maximum Power Output 25W × 4ch
AM Radio
Frequency Range 530 - 1,710kHz
Usable Sensitivity 24dB/µV (S/N 20 dB)
FM Stereo Radio
Frequency Range 87.7 - 107.9MHz
Usable Sensitivity 7dB/µV (S/N 30 dB)
Stereo Separation 25 dB (15kHz LPF)
Dimensions** (W×H×D) 178 × 110 × 162.5 (mm)
Weight** 1.4 kg
* Specifications and the design are subject to possible modification
without notice due to improvements.
** Dimensions and Weight shown are approximate.
MAZDA / CR-LM8160K
CONTENTS
Page Page
1 FEATUERS 2
2 SYSTEM BLOCK DIAGRAM
3 NAME OF FUNCTION OF EACH PARTS
4 WIRING CONNECTION
5 BLOCK DIAGRAM
6 TERMINALS DESCRIPTION
7 PACKAGE AND IC BLOCK DIAGRAM 8
2
8 REPLACEMENT PARTS LIST
3
9 EXPLODED VIEW (Unit)
10 WIRING DIAGRAM
5
6
11 SCHEMATIC DIAGRAM (Display Block)
7
12 SCHEMAT IC DIAGRAM (Main Block)
10
15
16
20
21
1 FEATUERS
∙
PLL (Phase Locked Loop) synthesized tuning.
∙
12-FM,6-AM presets with preset scan.
∙
Intelligent Volume Control (VOL,BASS,BAL,FADE)
∙
Steering Switch Control.
∙
CD Changer Control.
∙
Clock function.
2 SYSTEM BLOCK
DIAGRAM
2
3 NAME OF FUNCTION OF EACH PARTS
3.1. Front View
MAZDA / CR-LM8160K
3
MAZDA / CR-LM8160K
3.2. Rear View
4
4 WIRING CONNECTION
MAZDA / CR-LM8160K
5
MAZDA / CR-LM8160K
5 BLOCK DIAGRAM
6
6 TERMINALS DESCRIPTION
6.1. Main Block
IC601 : C2BBGF000393
Pin
Name Description I/O Vol.(V)
No.
1 ST SW Steering switch signal I 4.8 4.8
2 V CONT Signal strength signal I 0.5 0.8
3 +B.V Battery level detection I - 4 OFFSET
DET
5 - (Connecting to ground) - 0 0
6 - (Connecting to ground) - 0 0
7 - (Connecting to ground) - 0 0
8 ST SW2 Steering switch signal 2 I 0 0
9 P-ON Power on control O 4.8 4.8
10 AUX.CI AUX control signal I 4.8 4.8
11 DIV
ON/OFF
12 MD DATA MD serial data input I 0 0
13 (NC) (Connecting to ground) - 0 0
14 MD CLK MD serial clodk O 5.0 5.0
15 DIV MAIN L: Main Antenna O 0 0
16 DIV SUB L: Sub Antenna O 8.0 0
17 FM FM power control O 0 4.8
18 AUX.C-O Not used - - 19 COMBI COMBI signal O 5.0 5.0
20 AMP C AMP power control O 5.0 5.0
21 GND Ground - 0 0
22 VDD +5V power supply - 5.0 5.0
23 LCD ON LCD lamp control O 0 0
24 AMP ON AMP power control O 5.0 5.0
25 ACC OUT Not used - - 26 SSC SSC signal output O 0 0
27 DX/LOC DX/LOC select O 0 0
28 AM IF AM IF count I 0 0
29 FM IF FM IF count I 0 0
30 PLL VDD +5V power supply - 5.0 5.0
31 FM OSC FM oscillator I 2.2 0
32 AM OSC AM oscillator I 0 2.2
33 PLL GND Ground - 0 0
34 EO 0 Error output O 1.7 1.7
35 EO1 Not used - - 36 IC Ground - 0 0
37 SD SD signal I 0.4 0.4
38 FM ST FM stereo signal I 0.5 1.9
39 BOSE BOSE mode set up I 0 0
40 SIYOU 1 Mode set 1 I 0 0
41 SIYOU 2 Mode set 2 I 0 0
42 LED CONT Disc indicator LED control O 0 0
43 CLOCK (Connecting to ground) - 0 0
44 BOSE2 BOSE mode set up 2 I 0 0
45 R-ON Radio ON signal O 0 0
46 MODULE 1 Input select signal O 0 0
47 VOL1 EN B VOL rotaly encoder input B I 4.8 4.8
48 VOL1 EN A VOL rotaly encoder input A I 4.8 4.8
49 E2P STB EEPROM strobe O 0 0
50 E2P D IN EEPROM data input I 0 0
51 LCD DOUT LCD data output O 0 0
52 LCD CLK LCD data clock O 0 0
53 LCD DIN LCD data input I 4.8 0
54 LCD CE LCD chip enable O 0 0
55 - (Connecting to ground) - 0 0
56 REMOCON (Connecting to ground) - 0 0
57 SV-CLK Not used - - 58 SV-DATA Not used - - -
(+5V pull-up) - 4.8 4.8
- I - -
FM AM
MAZDA / CR-LM8160K
Pin
Name Description I/O Vol.(V)
No.
59 BEEP Beep sound O 0 0
60 MUTE Mute control output O 0 0
61 VOL CLK Volume control IC clock O 0 0
62 VOL DATA Volume control IC data O 0 0
63 VOL2 EN A VOL rotaly encoder input A I 4.8 4.8
64 VOL2 EN B VOL rotaly encoder input B I 4.8 4.8
65 S-MUTE Mute control O 4.8 4.8
66 TEL IN Telephone mute signal I 4.8 4.8
67 BATT DET BATT voltage detect I 4.8 4.8
68 ACC DET ACC voltage detect I 4.8 4.8
69 ILL DET ILL signal detect I 0 0
70 - (Connecting to ground) - 0 0
71 CD EJ CD eject signal detect I 5.0 5.0
72 LAN-IN LAN data input O 5.0 5.0
73 LAN-OUT LAN data output I 0 0
74 REG CPU Ground (0.1uF capacitor) - 4.0 4.0
75 GND Ground - 0 0
76 X2 Crystal oscillator - 1.8 1.8
77 X1 Crystal oscillator - 1.5 1.5
78 REG OSC Ground (0.1uF capacitor) - 3.6 3.6
79 VDD +5V power supply - 4.9 4.9
80 RESET Reset signal input I 4.8 4.8
FM AM
6.2. Display Block
IC901 : YEAMLC75853
Pin
No.
1-31 S1 - 31 LCD segment data O 2.6
32-40 S32-40 (NC) - - 41-43 COM1 -3 LCD common O 2.6
44-48 KS1 -5 Key strobe O 5.0
49 KS6 (NC) - - -
50-53 KI1 -4 Key data I 0
54 KI5 (Connecting to ground) - 0
55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 5.0
57 VDD1 (not used) - 3.4
58 VDD2 (not used) - 1.7
59 VSS Ground - 0
60 OSC Oscillator terminal - 4.0
61 DO Key data output O 5.0
62 CE LCD driver chip enable I 0
63 CLK LCD clock I 0
64 DI LCD data I 0
Name Description I/O (V)
7
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