Panasonic cq r 223 w service manual

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Order No. ACED02120803

Service Manual

AUTOMOTIVE AFTERMARKET

CQ-R223W
CQ-R223WJ

Removable Face High-Power Cassette/
RDS Receiver with Changer Control

Specifications *

General . _ _
Power Supply ; 12v DC (11v.1sv) Alternate Channel Sensitivtty : 75dB
Test Voltage 14,4v, Stereo Separation : 35 dB (1kHz)
Negative ground Signal/Noise Ratio 1 70 dB (MONO)
Maximum Power Output : 50W x4 channels at 400Hz,
Volume Control maximum Tape Player
Power Output : 20 W per channel into 4 ohms, Reproduction System I 4- tfack, 2-program stereo
40 to 30,000Hz, at 3% THD Tape Speed : 1-7/8" Isec (4.76cmlsec)
Tone Action : Bass; t 12 dB at 100Hz FFIREW Time : Less than 200 sec (C-GO)
Treble; : 12 dB at 10kHz Frequency Responce :35-14,000Hz(:3dB)
Current Consumption : Less than 2.5 A Wow and Fluter : 0.12 % (WRMS)

(tape mode, 0.5W 4-Speaker) Signal/Noise Ratio : 52 dB
Speaker Impedance : 4 0 (4-8:: acceptable)
Pre-Amp Output Voltage : 2.0V (CD Play mode; 1kHz

OdB)
AM Radio Dimentions (WX H x D) : 7" x 1-15I16" x 5-7/8"
Frequence Range : 531 - 1602 kHz _ (178 X 50 X 150 mm)
Useable Sensitivity : 28 dB/ttV (25 th/ SIN ZOdB) Weight : 3 lbs. 8 oz. (1.6 kg)
FM Stereo Radio
Frequency Range : 87.5 _ 108 MHz _ . _ _ g .
Useable Sensitivity : 12 dBf. (1.1HVI75 Q, SIN 30 dB) - Specifications and the design are subject to possible modification
50 dB Quieting Sensitivity : 17 dBf. (1.8 uvnso) I; 3:333:22:figgtrggmegzwm
Frequency Response : 30 - 15,000Hz (i 3dB) Above specifications comply with EIA standards

A WAR N | NG

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 prolessional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

IMPORTANT SAFETY NOTICE

There are special components used in this equipment which are important for safety. These parts are marked by A in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List, It is essential that these critical parts should be replaced
with manufacturers specified parts to prevent shock, lire or other hazards. Do not modify the original design without permission of

manufacturer.

© 2003 Matsushita Electric Industrial Co., Ltd. All

- ®
P n I rights reserved. Unauthorized copying and
distribution is a violation of law.

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CQ-R223W I CQ-R223WJ

CONTENTS

Page
1 FEATURES ------------------------------------------------------------------------------ 2
2 REPLACING THE FUSE-
3 MAINTENANCE
4 RADIO ALIGNMENT
5 DIMENSIONS --------------------------------------------------------------------------- 2
6 WIRING CONNECTION
7 BLOCK DIAGRAM ------
8 WIRING DIAGRAM ------------------------------------------------------------------- 5
9 SCHEMATIC DIAGRAM (Main Block) ...................................... 9

1 FEATURES

a PLL (Phase Locked Loop) Synthesized Tuning.

0 1DlN Size Body with Cassette Player,AM/FM Tuner, Power
AMP (50Wx4).

- 18-FM ,6-AM stations preset .

o Auto preset and scan function.

0 CD Changer Control function.

a Radio Data System(PS.AF.CT.P1).
o Detachable face plate security.

2 REPLACING THE FUSE

Be sure to use a fuse of the specified rating (10A) when
replacing a blown fuse. Fuses with higher capacity ratings,use
of any substitute, or connection without a fuse may result in a
fire hazard or damage to the unit.

3 MAINTENANCE

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

4 RADIO ALIGNMENT

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

5 DIMENSIONS

Page
10 SCHEMATIC DIAGRAM (Display Block) ................................ 11
11 SCHEMATIC DIAGRAM (Tape Block)-
12 TERMINALS DESCRIPTION --
13 PACKAGE AND IC BLOCK DIAGRAM
14 REPLACEMENT PARTS LIST (Unit) -------------------------------------- 16
15 EXPLODED VIEW (Unit) .....................................
16 REPLACEMENT PARTS LIST (Tape Player Parts)-
17 EXPLODED VIEW (Tape Deck) .............................................. 23
18 SCHEMATIC DIAGRAM for printing with letter size .............. 24