Pioneer deh 343 r service manual

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The Art of Entertainment

Service
Manual

HIGH POWER CD PLAYER WITH RDS TUNER

DEH-345R XIM/EW
DEH'344R XIM/EW

DEH'343R XIM/GFI @flgg

0 See the separate manual CX-597ICRT1829) for the CD mechanism description, disassembly and circuit
description.
O The CD mechanism employed in this model is one of 87 series.

DEH-345R/X1M/EW

ORDER NO.

CRT2103

CONTENTS
1. SAFETY INFORMATION ............................................ 2 7. GENERAL INFORMATION ....................................... 61
2. EXPLODED VIEWS AND PARTS LIST ....................... 4 7.1 PARTS ................................................................. 61
3. SCHEMATIC DIAGRAM ........................................... 14 7.1.1 IC ................................................................ 61
4. PCB CONNECTION DEAGRAM ................................ 36 7.1.2 DISPLAY .................................................... 68
5. ELECTRICAL PARTS LIST ........................................ 46 7.2 DIAGNOSIS ........................................................ 69
6. ADJUSTMENT .......................................................... 55 7.2.1 DISASSEMBLY ......................................... 69
7.2.2 TEST MODE .............................................. 70
7.3 BLOCK DIAGRAM .............................................. 72
8. OPERATIONS AND SPECIFICATIONS ..................... 74

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.

PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetbergiaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Lane Crawford Place, Singapore 0923

© PIONEER ELECTRONIC CORPORATION 1997 K-FE A. OCT. 1997 Primed in Belgium

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DEH-345R,344R,343R

. CD Player Service Precautions

1. For pickup unit(CXX1230) handling, please refer 2. During disassemblyi be sure to turn the power Off
to"Disassembly"(CX-597 Service Manual CRT1829). since an internal lC might be destroyed when a con-
During replacement, handling precautions shall be nector is plugged or unplugged.
taken to prevent an electrostatic dischargelprctection 3. Please checking the grating after changing the ser-
by a short pin). vice pickup unitlsee page 59).

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so
and refer the repair to a qualified service technician.

1. Safety Precautions for those who Service this Unit.
. When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.

Caution:
1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.
2. During repair or tests, do not View laser beam for 10 seconds or longer.

2. A CLASS 1 LASER PRODUCT" label is affixed to the 3. The triangular label is attached to the mechanism
rear of the player. unit frame.

CLASS 1
LASER PRODUCT

4. Specifications of Laser Diode

Specifications of iaser radiation fields to which human access is possible during service.
Wavelength = 800 nanometers