Panasonic cq rx 300 n service manual

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ORDER NO. ACED0712OSC8

Service Manual

AUTOMOTIVE AFTERMARKET
[filfl§@ AAE WMA Mp3 CQ-RX300N
(co-axsoom CQ-RXZOON
CQ-RX1 03N
. ATAo CQ-RX102N
(CQ-RXBOON) CQ-RX101 N

AAC WMA MP3 CD Player/Receiver

A WARNING

This service intormation 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 professional 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 manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of

manufacturer.

TABLE OF CONTENTS

PAGE
1 Service Navigation
2 Specifications ------
3 Features ----------------------
4 Technical Descriptions --
5 Block Diagram --------------------
6 Wiring Connection Diagram -
7 Schematic Diagram-"-
8 Schematic Diagram-2 -
9 Printed Circuit Board--

10 Exploded View and Replacement Parts List -

11 Schematic Diagram for Printing with A4 Size---

© 2007 Matsushita Electric Industrial Co., Ltd. All

I
® rights reserved. Unauthorized copying and distribu-
anasonlc tion is a violation 01 law.

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1 Service Navigation
1.1. About Lead Free Solder (PbF)

Distinction of PbF PCB :
- PCBs (manufactured) using lead free solder will have a PbF
stamp on the PCB.

Caution :
- Pb free solder has a higher melting point than standard sol-

der; Typically the melting point is 50 - 70°F (30 - 40°C)
higher. Please use a soldering iron with temperature control
and adjust it to 700 : 20°F (370 i 10°C). In case of using
high temperature soldering iron, please be careful not to
heat too long.

- Pb free solder will tend to splash when heated too high
(about 1100°F/600°C)

1.2. Laser Products

CAUTION:
This product utilizes a laser diode with the unit turned "on",
laser radiation is emitted from the pickup lens.
Laser radiation from the pickup lens is safety level, but be
sure the followings:
1. Do not disassemble the optical pickup unit, since
radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit.
It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time.

DANGER! Visible and invisible laser radiation
when open. Avoid direct exposure to beam.

Deck Ass'y (Upper Side)

Caution

This Product utilizes a laser.

Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.

1.3. Replacing the Fuse

Use fuses of the same specified rating 15 amps. 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.

1.4. Maintenance

Your product is designed and manufactured to ensure a mini-
mum of maintenance. Use a dry, a soft cloth for routine exterior

cleaning. Never use benzine, thinner or other solvents.

1.5. Notes

[RADIO BLOCK]

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

[CD DECK BLOCK]

This model has no servo alignment points because microcom-
puter controls the servo circuit.