Pioneer cdxfm 627 s service manual

Page 1

(U) PIONEER

The Art of Entertainment

Service
anual

UNIVERSAL MULTI-CD SYSTEM

CDX'FMHES uc
CDX'FMBE7S uc,Es,EW

[ilfigffi

DIGITAL AUDIO

CDX-FMBZQS/UC

ORDER NO.

CRT1858

0 See the separate manual CX-652(CRT1857I for the CD mechanism description, disassembly and circuit
description.

. The CD mechanism employed in this model is one of CX-652 series.
O Use the same display unit and remote control assy as used for the CDX-FM67.

CONTENTS

1. SAFETY INFORMATION ............................................ 2 8. LCD ............................................................................ 23
2. SPECIFICATIONS ........................................................ 3 9. ELECTRICAL PARTS LIST ........................................ 24
3. OPERATION AND CONNECTION .............................. 4 10. BLOCK DIAGRAM .................................................... 28
4. DISASSEMBLY ........................................................... 6 11. CIRCUIT DIAGRAM AND PATTERN ........................ 30
5. ADJUSTMENT ............................................................ 7 12. EXPLODED VIEW AND PARTS LIST ...................... 51
6. TEST MODE .............................................................. 13 13. PACKING METHOD .................................................. 57
7. IC INFORMATION ..................................................... 17

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 Keetberglaan 1, 9120 Melsele, Belgium

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

© PIONEER ELECTRONIC CORPORATION 1996 K-FFD. JUNE 1996 printed in Japan

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CDX-FM6295,FM6273

C CD Player Service Precautions

1. For pickup unitlService)(CXXl235) handling, please 2. During disassembly, be sure to turn the power off
refer to'Disassembly'lCX-GSZ Service Manual since an internal IC might be destroyed when a con-
CRT1857). nector is plugged or unplugged.

During replacement, handling precautions shall be 3. Please checking the grating after changing the pickup

taken to prevent an electrostatic discharge(protection unitiSee page 8).

by a short pin). 4. Since these screws protects the mechanism during
transport, be sure to affix it when it is transported for
repair, etc.

%
fi\

Attach to the original position before transporting the set.

A transport screw has been attached to
the set in order to protect it during trans-
portation. After removing the transport
screw, cover the hole with the supplied
seal.

Be sure to remove the transport screw
before mounting the set. The removed
transport screw should be retained in the
accessory bag for use the next time the
set is transported.

1. SAFETY INFORMATION
1.1 CDX-FMGZSS/UC, FM627S/UC

QAQTIQN

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.

MBMNQ

Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxi-
cant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin
contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.