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Car Audio CMD-170




TABLE OF CONTENTS
Page
Technical Specificatio ns ............. .................. .................. ...1-2
Measurem ent setup . .................. .................. .. ...... .......... ...1-3
Service A ids, Safety I nstruction, et c ....... ...... .. ........... 1-4 to 1-5
Preparati ons & Contro ls .............. ......... ...... ... ........... 1-6 to 1-9
Maintena nce & Troubl eshooting ....................... ................ 1-10
Disassem bly Instructi ons & Servic e positions . .... ...... ........ ..... 2
Set Block diagram .... .................. ................ .. .... .............. ..... 3
Set Wirin g diagram ... .................. ....... ...... ..... .................. ..... 4
Key Board ................ .......................... ................................. 5
Servo Board ............. ........................... ...... .......................... 6
Main Boa rd .............. .................. ......... ...... ... .................. ..... 7
Set Mech anical Explo ded view & p arts list .... .. .... .............. ...... 8
1-2
SPECIFICATIONS

General Components
Power supply: 12V DC(11V-16V) Mounting collar 1
Test voltage 14.4V, negative ground Machine screws M5x6mm 4
Maximum power output: 50Wx4 channels Mounting bolt (50mm) 1
Continuous power output: 25Wx4 channels (4 ,10% T.H.D.) Wire connector 1
Suitable speaker impedance: 4-8 ohm Removable face plate case 1
Pre-Amp output voltage: 2.0V ( CD play mode: 1KHz, 0 dB, 10 K load ) Trim plate 1
Fuse: 15A L-key 2
Dimensions(WxHxD) 178x50x162mm Operating instructions 1
Weight: 1.7kg Rubber cushion 1




FM Stereo Radio
Frequency range: 87.5 - 108.0 MHz ( EUROPE mode )
65.0 - 74.0 MHz ( OIRT mode )
Usable sensitivity: 8 dB
quieting sensitivity(S/N=50dB): 12 dB
Frequency response: 30Hz-15kHz
Stereo separation: 30dB(1kHz)
Image response ratio: 50dB
IF response ratio: 70dB
Signal/noise ratio 55dB




Disc Player
System: Disc digital audio system
Frequency response: 20Hz - 20kHz
Signal/noise ratio: >86 dB
Total harmonic distor tion: Less than 0.20%(1 kHz)
Wow and flutter: Below measurable limits
Channel separation: >60 dB




Note: Specifications and design are subject to change
without notice for product improvements.
1-6
PREPARATIONS

Wiring Diagram




Antenna Fuse 15A



Connector
A mplifier
Line-out (Gray) R(Red)
L(White)




ISO Connector For some VW /Audi or Opel(Vaux hall)
car models, you may need to modify
w iring of the supplied power cord as
Yellow illustrated, or else th e memory of the
To car battery(+) Continuous +12V DC
uni t may be lost after you power off.
Black
Ground Lead Cont act your authori zed car dea ler
Blue Motor/Electric Antenna relay control Lead before i nsta lling this unit .
Amplifier relay control Lead
Red Ori ginal wi ring
Ignition key Yellow Yellow
+12V DC When ON/ACC
Red Red
Purple Purple/ Gray Gray/ White/ White Green/ Green
Black Black Black Black
Stripe Stripe Stripe Stripe Modified wir ing
Yellow Yellow

Red Red




Using the ISO Connector
1.If your car is equipped with the ISO connector, then connect the ISO connectors as illustrated.




2. For connections without the ISO connectors, check the wiring in the vehicle carefully before connecting,
incorrect connection may cause serious damage to this unit.
Cut the connector, connect the colored leads of the power cord to the car battery, as shown in the colour
code table below for speaker and power cable connections




Connector Connector
Rear Right(+)---Purple
Rear Right(-)---Purple/Black Stripe
Front Right(+)---Gray
ACC+/red Front Right(-)---Gray/Black Stripe
Auto Antenna/blue Front Left(+)---White
Front Left((-)---White/Black Stripe
Battery 12V (+)/yellow Rear Left(+)---Green
Ground/black Rear Left(-)---Green/Black Stripe
5-2 5-2

KEY BOARD - CIRCUIT DIAGRAM
6-2 6-2

SERVO BOARD - CIRCUIT DIAGRAM
7-2 7-2

MAIN BOARD - CIRCUIT DIAGRAM
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