Panasonic cy pa 4003 u service manual

Page 2

CV-PADDSU

A WARNING

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 sen/iced 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 manufacturers specified pans to prevent shock, fire or other hazards. Do not modify the original design without permission of

manufacturer.

CONTENTS

Page
1 ABOUT LEAD FREE SOLDEFI (PbF) ....................................... 2
2 FEATUERS .................... __ 2
3 REPLACEING THE FUS
4 DIMENSIONS .................
5 WIRING CONNECTION ------------------------------------------------------------ 3

6 IC BLOCK DIAGRAM -----
7 PACKING PARTS LIST --

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
solder; 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 t
10°C). In case of using high temperature soldering iron,
please be careful not to heat too long.

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

I This lead free solder will be used for the products after
serial No. 1,000,001.

2 FEATUERS

I 250 W x 4channel maximum power output

I Total 1000W maximum power output

I An amplifier connected to the 4-, 3- or 2-channel speaker
I ZCH/4CH input selection

I Low-Pass Filter for subwoofer, High Pass Filter

I Hight Level Speaker Input connection

I Bass boost control system

I Crossover Frequency Control

I RCA output terminals

ISA-channel Surround System (Combination with other
Panasonic car audio products)

Page
3 REPLACEMENT PARTS LIST -------------------------------------------------- s
9 EXPLODED VIEW (Unit)- ".13

1o WIRING DIAGRAM"-
11 SCHEMATIC DIAGRAM-1
12 SCHEMATIC DIAGRAM-2 ...................................................... 21
13 BLOCK DIAGRAM ................................................................. 29

3 REPLACEING THE FUSE

Use fuses of the same specified rating 35 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.

4 DIMENSIONS