Panasonic cq dp930 dp940 euc

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ORDER NO 9712493

Service Manual

AUTOMOTIVE CONSUMER ELECTRONICS

CQ- DP930/940EUC

Removable Face High-Power CD Player] Receiver

[flCDM PACT

DIGITAL AU DID

< CQ-DP94OEUC>

0 NTT has applied for trademark registration for MASH.

Specifications*
General
Power Supply

Tone Action

Current Consumption
Maximum Power Output
Per-AMP Output Voltage
Output impedance

AM Stereo Radio
Frequency Range
Usable Sensitivity

FM Stereo Radio
Frequency Range
Usable Sensitivity

: DC 12V (11V- 16V).

Test Voltage 144V
Negative Ground

: Bass ;i 12dB at IOOHZ

Treble ;i- 12dB at tokHz

: Less than 1.7A (CD play mode)

: 40W X 40h, at 400Hz, Vol. MAX
: 2.0V (CD Play Mode ; 1 kHz OdB)
: 600 ohms

: 530 -1,710kHZ
: 28dB/pV(25pV, S/N 20dB)

:87.9 -107.9MHZ
: 13.2dBf(12t5pV, 759)

Panasonic®

CD Player

Sampling Frequency
DA Coverter

Pick-Up Type

Light Source
Wavelength
Frequency Responce
Signal to Noise Radio
Wow and Flutter
Channel Separation

Dimensions"

Main Unit

Weight
Main unit

2

: 32 times oversampling

: MASH-1bit/4 DAC System
: Astigma 3-beam

: Semiconductor laser

: 780nm

:20Hz to 20,000Hz ( : MB)
2 96:18

:Below measurable limits

: 75dB

: 7,, X 1-15/16" X 5-7/8"

(178 X 50 X 150 mm)

: Slbs 802 (1 fikg)

Specifications and the design are subject to possible

modification without notice due to improvements
* Dimensions and Weight showm are approximate,

©1997 Matsushita Communication Industrial 00,, Ltd.
All rights reserved Unauthorized copying and
distribution is a violation of law.

(Recycled Paper)

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CQ-DP930I940EUC l

AWARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It
does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced proffesional technicians. Any attempt to
service or repair the product or producs dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

DIMENSIONS
FEATURES
REPLACEMEN
MAINTENANCE ..............
RADIO AND CD DECKALIGNMENT

< OPERATING INSTRUCTIONS >
Power and Sound Controls
Radio Basics ......................
Compact Disc Player Basics
Clock Basics .........................
Programmed Sound Memory
Remote Control Unit Basics .
Installation Guide. .
Troubleshooting .
Special Notes
BLOCK DIAGRAM
SCHEMATIC DIAGRAM (DISPLAY : DP930EUC) ..
WIRING DIAGRAM (DISPLAY: DPQSOEUC) ........ 1
SCHEMATIC DIAGRAM (DISPLAY: DP940EUC)... 1
PACKAGE AND IC BLOCK DIAGRAM ...........
WIRING DIAGRAM (DISPLAY: DP94OEUC).
SCHEMATIC DIAGRAM (MAIN).
WIRING DIAGRAM (MAIN) ......
TERMINALS DESCRIPTION
SCHEMATIC DIAGRAM (CD Sen/o) .
WIRING DIAGRAM (CD Servo))
REPLACEMENT PARTS LIST.
EXPLODED VIEW (UNIT) ........
EXPLODED VIEW (CD Servo)
PACKING PARTS LIST ..............

DIMENSIONS

FEATURES

32bit-times oversampling MASH 1bit 4-DAC system.
Digital servo for reliable playback.

PLL (Phase Locked Loop) synthesized tuning.
18-FM, 6-AM presets with preset scan.

Intelligent volume control.

Removable face plate.

REPLACING THE FUSE

Use fuses of the same specified rating 15amps. Using
different substitutes or fuses with higher ratings, or
connecting the unit directly without a fuse, could cause
fire or damage to the stereo unit. If the replacement fuse
fails, contact your nearest MSC, Panasonic (in Canada)
Servicenter for service.

MAINTENANCE

Your product is designed and manufactured to ensure a
minimum of maintenance. Use a soft cloth for routine
exterior cleaning. Never use benzine, thinner, or
other solvent.

RADIO AND CD DECK ALIGNMENT

I RADIO BLOCK

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

I CD DECK BLOCK

This model has no servo alignment points because
microcomputer controls the servo circuit.

Note:

This operating instruction manual is for 2 models CG-DP940EUC and
CQ-DPSSOEUC. All illustrations throughout this manual represent
model CQ»DP940EUC unless otherwise specified. The following
tabledescrlbes the differences between 2 models.

Operating Controls Model CQ-DP940EUC CQ-DPQSDEUC
Pre-Out 2 pre (Lead type) 1 pre (Fix)
HDB Super HDB None
LOUD None Yes

AUX Yes None
Programmed Sound Memory Yes None
Level Meter Ves None
Security Indicator Ves None
Remote Control Unit Yes None

LCD Color 3 Colors Green

Find the model number and serial number on either the back or bottom of the
unit. Please record them in the space below and retain this booklet as a permanent
record of your purchase to aid in identification in case of theft.