Pioneer dehp 77 r service manual

Page 1

Service
Manual

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH lD-LOGIC TUNER

DEH-P725FI EW
DEH-p725n-w EW

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH ID-LOGIC TUNER

DEH-P725 uc
DEH-P725-W uc

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-p723 ES
DEH-PSEE uc ileum.

ORDER No.
CRT1 81 2

MULTI-CD CONTROL CD PLAYER WITH FM/AM TUNER

DEX-P88 uc WISE

MULTl-CD CONTROL co PLAYER WITH RDS TUNER . '° L°°° '5 " WWW"

or AND Is MANUFACTURED
D UNDER LICENSE men was
- CORPORATION. wt. :- H.K.

D E X p 7 7 R EW I-DEICom m m...

0 See the separate manual CX-597 [CRT1811I for the CD mechanism description and disassembly.
O The CD mechanism employed in this model is one of CX-597 series.

CONTENTS

1. SAFETY INFORMATION
2. SPECIFICATIONS .........
3. OPERATION AND CONNECTION
4. DISASSEMBLY..
5. ADJUSTMENT
8. TEST MODE..
7. IC INFORMATION.

3. LCD ................................

9. ELECTRICAL PARTS LIST
10. BLOCK DIAGRAM ........
11. CIRCUIT DIAGRAM AND PATTERN...
12. EXPLODED VIEW AND PARTS LIST
13. PACKING METHOD .........................

PIONEER ELECTRONIC CORPORATION VI, Mequro 1-Chome, MeguroJIu, Tokyo 153, Japan
PIOIEER ELECTRONICS SERMCE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.

PIOBEEH ELECTRONIC IEUIOPEI N.V. Haven 1087 KeetbergIaen 1, 9120 Melsele, BeIqum

PIOIEER ELECTRONICS ASIACENTRE PTE.|.TD. 501 Orchard Road, #10470, Lane Crawford Place, Singapore 0923

© PIONEER ELECTRONIC CORPORATION 1995 ms NW .995 Primed in Japan

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DEH-P725FI.P725R-WP725.P725-\N, P723,P325.
DEX-PEB,P77R

Using the SR3 function (DEH-P125RIEW, P725R-WIEW, P725IUC, P725-W/UC, P723IES)

This stereo CD player's SRS function provides .
the pleasure of listening to music of superb depth
and breadth in the relaxed Hemisphere of your

own vehicle.

Mm: everything else ts only stereo"
l. The 538 function does not operate when the The words "5115". Sound Retrieval System"
1 '3 m 5 "9 mm- and the 5115 Symbol m are trademarks of
2. The SRS effects can be changed to match the SR5 Labs, Inc. Made under license from SRS
style or music. Labs. lnc. Palenied in the U. S. A and selected
countries.

1. SAFETY INFORMATION
1 .1 DEH-P725IUC,P725-WIUC,P625IUC,DEX-P83I UC

EALELQN

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.

WAENINS

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 81 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.

1 .2 DEH-P725RIEW,P725R-WIEW.DEX-P77R/EW

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 not 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" llbll is affixed 0 0 3. The triangular libel is attached to the mechanism

bottom of the player. unit frame. 5

CLASSi
LASRPWET

4. Specifications of Laser Diode

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