Panasonic cq mr 335 service manual

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ORDER NO. ACED9904202

Service Manual

AUTOMOTIVE CONSUMER ELECTRONICS

CQ'MR533LEN

Specifications"
General Lw Radio
Power supply : 12V DC (11V-16V) Frequency range : 153 - 279kHz
Test Voltage 14.4V, Useabie sensitivity : 32 dB/uV (SIN 20 dB)
Negative ground
Tone Controls : Bass; 112 dB at 100Hz MD Player
: Treble; :12 dB at 10kHz Channel : 2 channels
Current consumption : Less then 2.5 A DA Conversion : 16-bit linear
(MD mode, 0.5W 4-Speaker) Frequency response : 5 to 20,000Hz
Maximum Power Output : 40W x 4 (at 40) Signal to Noise ratio : 90 dB (1kHz)
Power Output : 20W x 4 (DIN45 324, at 49) Wow and liutter : Below measurable limits L
Speaker impedance : 4 - on
FM Stereo Fla dlo $39923? (WXHXD) . 17:15:) x 50 (H) x 150 (D) mm
Frequency range : 87.5 - 108MHz ' '
Useabie sensitivity : 6 dB/uV (S/N 30 dB)
36 separation : 35 dB (5' 1kHz) ' Specifications and the design are subject to possible modification

MW Radio
Frequency range
Useable sensitivity

: 531 - 1,602kHz
: 28 dB/uV (S/N 20 dB)

Panasonic

without notice due to Improvements.
" Dimensions and weight shown are approximate.
' Above specifications comply with BA standards.

@1999 Metsusnita Communication Industrial 00,, Ltd.
All rights reserved. Unauthorized copying and
distribution Is a violation at law,

(Recycled Paper)

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CQ-MR335LEN I

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

CONTENTS FEATURES
- 1DlN Size Body with MD Player, AM/FM Tuner, Power

FEATURES """"""""""" 1 AMP (40Wx4) and CD Changer Control Function
REPLACING THE FUSE . . 1
MAINTENANCE .................................... . 1 PRE 0mm C°e°°' F°°
RADIO AND MD DECK ALIGNMENT .. 1 ' Detachable Face Plate Security
DIMENSIONS ..................................................................... 1 ' SHDB (SUPer High Definition BaSS) Function

Precautions (lSO Connector) . ttttt 2 REPLAClNG THE FUSE

Laser Products ................ _, 2 Be sure to use a fuse of the specified rating (15A) when

.. 3 replacing a blown fuse. Fuses with higher capacity rat-
" 4 ings, use of any substitute. or connection without a fuse
4 to 6 may result In a fire hazard or damage to the unit.

Power and Sound Controls.
Radio Basics .......................
FiDS (Radio Data System) Reception
Mini Disc Player Basics .................
CD Changer Basics .....
Remote Control Basics
Anti-Theft System .

I .. 7 MAINTENANCE

,. 8 Your product is designed and manufactured to ensure a
.. 3 minimum of maintenance. Use a soft colth for routine ex-
9
9

installation ......... terior cleaning. Never use benzine, thinner, or other scl-
Electrlcal Connection .. vent.
Speaker Connection ..... 10
Notes on Mlnl Discs (MD) 10 RADIO AND MD DECK ALIGNMENT

WIRING CONNECTION . ....... 11 9'0 BLOCK ,

BLOCK DIAGRAM Do not aIIgn the AM and FM package block IS necessary,

it will be supplied already alined at the factory.

MD DECK BLOCK
This models has no servo alignment points because mi-
crocomputer controls the servo circuit.

WIRING DIAGRAM (Display Block) ...................
WIRING DIAGRAM (Main / MD Interface Block)
WIRING DIAGRAM (MD Servo Block) ............
WIRING DIAGRAM (Front / Eject sw Block) . . .
SCHEMATIC DIAGRAM (Display/ Front I Eject sw Block) .. 17

SCHEMATIC DIAGRAM (Main / MD Interface Block) ...... 18 DIMENSIONS
SCHEMATIC DIAGRAM (MD Servo Block)
TERMINALS DESCRIPTION ......................
PACKAGE AND K) BLOCK DIAGRAM
REPLACEMENT PARTS LIST ...............
EXPLODED VIEW (Unit) ..........
EXPLODED VIEW (MD Deck) ..