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Service AUDIO
Manual
SELECT
EQ SFEQ
ORDER NO.
CRT2771
DEH-P440/XN/UC
MULTI-CD CONTROL HIGH POWER CD PLAYRE WITH FM/AM TUNER
DEH-P440 /XN/UC
DEH-P4400 /XN/UC
DEH-P440/XN/UC /XN/UC
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-977 CRT2624 S9 CD Mech. Module:Circuit Description,Mech. Description,Disassembly
CONTENTS
1.SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . 3 7.1.1 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . .48
2.EXPLODED VIEWS AND PARTS LIST . . . . . . . . . . . . . 4 7.1.2 CONNECTOR FUNCTION DESCRIPTION . . . . .51
3.BLOCK DIAGRAM AND SCHEMATIC . . . . . . . . . . . . . 12 7.2 PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
4.PCB CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . . 26 7.2.1 IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
5.ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . 34 7.2.2 DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
6.ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 7.3 OPERATION FLOW CHART . . . . . . . . . . . . . . . . . . .63
7.GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . 48 7.4CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
7.1 DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 8. OPERATIONS AND SPECIFICATIONS . . . . . . . . . . . .65
For details, refer to "Important symbols for good services" on the next page.
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
K-ZZU2000.printed in Japan
K-ZZU.2001.printed in Japan
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[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
1. Product safety
A You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.
2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
B 5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
- CD Player Service Precautions
1. For pickup unit(CXX1480) handling, please refer 3. Please checking the grating after changing the pickup
to"Disassembly"(see page 48). unit(see page 42).
During replacement, handling precautions shall be 4. In this product, because the memory capacity of the
taken to prevent an electrostatic discharge(protection microcomputer is insufficient, the test mode is not
by a jumper-solder). installed. However grating of the pickup unit can be
2. During disassembly, be sure to turn the power off confirmed.
since an internal IC might be destroyed when a con-
C nector is plugged or unplugged.
D
2 DEH-P440/XN/UC
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1. SAFETY INFORMATION
CAUTION
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. A
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.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
B
C
D
DEH-P440/XN/UC 3
5 6 7 8
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2. EXPLODED VIEWS AND PARTS LIST
NOTES :