Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer Car Audio crt2758_deh-3450_248

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Service DEH-3450/XN/ES

Manual ORDER NO.
CRT2758
HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-3450
DEH-2450F XN/ES
XN/ES

- 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. GENERAL INFORMATION .......................................42
2. EXPLODED VIEWS AND PARTS LIST .......................4 7.1 DIAGNOSIS ........................................................42
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10 7.1.1 DISASSEMBLY .........................................42
4. PCB CONNECTION DIAGRAM ................................24 7.1.2 CONNECTOR FUNCTION DESCRIPTION .......45
5. ELECTRICAL PARTS LIST ........................................32 7.2 PARTS .................................................................46
6. ADJUSTMENT..........................................................38 7.2.1 IC................................................................46
7.2.2 DISPLAY ....................................................55
7.3 OPERATIONAL FLOW CHART ...........................56
7.4 CLEANING ..........................................................57
8. OPERATIONS AND SPECIFICATIONS.....................58

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-ZZD. NOV. 2001 Printed in Japan
DEH-3450,2450F

[ 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
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.

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 42). unit(see page 39).
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-
nector is plugged or unplugged.

2
DEH-3450,2450F

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.

3
DEH-3450,2450F

2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING

20 19

7
8
5
6
1
10 17
3
11 2
9 15

14
13

4
DEH-3450,2450F

NOTE:
- Parts marked by "*" are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to mark on the product are used for disassembly.
- For the applying amount of lubricants or glue, follow the instructions in this manual.
( In the case of no amount instructions, apply as you think it appropriate.)
(1) PACKING SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.
1-1 Owner's Manual CRD3499 * 9 Polyethylene Bag CEG-158
1-2 Installation Manual CRD3503 10 Handle CNC5395
1-3 Polyethylene Bag CEG1116 11 Bush CNV3930
2 Cord Assy CDE6468 12 Polyethylene Bag CEG-162
3 Spring CBH1650 13 Carton See Contrast table(2)

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