PIONEER CDXM8027Z Service Manual

PIONEER CDXM8027Z Service Manual
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Service Manual for PIONEER CDXM8027Z, downloadable as a PDF file.

Manual details

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The manual has 68 pages
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Available language versions: English
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Sample pages

ORDER NO.

CRT2930

PUB. NO.

CRT2930

AUDIO SYSTEM

CD CHANGER

Manufactured for TOYOTA

by PIONEER CORPORATION

VEHICLE

DESTINATION

PRODUCED AFTER

TOYOTA PART No.

ID No.

PIONEER MODEL No.

LEXUS GX470

U.S.A., CANADA

November 2002

86270-60070

CDX-M8027ZT/E

LAND CRUISER

Any country or

September 2002

86270-60070

CDX-M8027ZT/E

PRADO

area except for

Japan

LAND CRUISER

UNITED KINGDOM, September 2002

86270-60080

CDX-M8127ZT/WL

PRADO

AUSTRALIA,

NEW ZEALAND,

SOUTH AFRICA

GX470

Service

Manual

ORDER NO.

CRT2930

PUB. NO.

CRT2930

AUDIO SYSTEM

CD CHANGER

Manufactured for TOYOTA

by PIONEER CORPORATION

VEHICLE

DESTINATION

PRODUCED AFTER

TOYOTA PART No.

ID No.

PIONEER MODEL No.

LEXUS GX470

U.S.A., CANADA

November 2002

86270-60070

CDX-M8027ZT/E

LAND CRUISER

Any country or

September 2002

86270-60070

CDX-M8027ZT/E

PRADO

area except for

Japan

LAND CRUISER

UNITED KINGDOM, September 2002

86270-60080

CDX-M8127ZT/WL

PRADO

AUSTRALIA,

NEW ZEALAND,

SOUTH AFRICA

GX470

Service

Manual

234

CDX-M8127ZT/WL

- CD Player Service Precautions

1. Before disassembling the unit, be sure to turn off the

power. Unplugging and plugging the connectors dur-

ing power-on mode may damage the ICs inside the

unit.

2. To protect the pickup unit from electrostatic dis-

charge during servicing, take an appropriate treat-

ment (shorting pin) by referring to "the DISASSEM-

BLY" on page 61.

3. After replacing the pickup unit, be sure to check the

grating. (See page 46.)

4. The door units CXB8261 and CXB8262 have been

engaged each other tightly. When you have to

replace the door unit CXB8261 or CXB8262, remove

both door units from the Grille to replace them at the

same time.

For details, refer to "Important symbols for good services".

CDX-M8127ZT/WL, CDX-M8027ZT/E

- This service manual should be used together with the following manual(s):

Model No.

Order No.

Mech. Module Remarks

CX-652

CRT1857

CD Mech. Module:Circuit Description, Mech.Description, Disassembly

CDX-M8127ZT/WL

2. A "CLASS 1 LASER PRODUCT" label is affixed to the

bottom of the player

3. The triangular label is attached to the mechanism

unit frame.

1. Safety Precautions for those who Service this Unit.

· Follow the adjustment steps (see pages 45 through 51)in the service manual when servicing this unit. When check-

ing 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.

4. Specifications of Laser Diode

Specifications of laser radiation fields to which human access is possible during service.

Wavelength

785 nanometers

Radiant power =

69.7 microwatts(Through a circular aperture stop having a diameter of 80 millimeters)

0.55 microwatts(Through a circular aperture stop having a diameter of 7 millimeters)

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.

234

CDX-M8127ZT/WL

[ 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:

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.

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.

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.

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.

CONTENTS

SAFETY INFORMATION ............................................3

1. SPECIFICATIONS........................................................5

2. EXPLODED VIEWS AND PARTS LIST .......................6

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12

4. PCB CONNECTION DIAGRAM ................................22

5. ELECTRICAL PARTS LIST ........................................28

6. ADJUSTMENT..........................................................32

7. GENERAL INFORMATION .......................................61

7.1 DIAGNOSIS ........................................................61

7.1.1 DISASSEMBLY .........................................61

7.1.2 CONNECTOR FUNCTION DESCRIPTION .......64

7.2 IC ........................................................................65

7.3 EXPLANATION ...................................................66

7.3.1 SYSTEM BLOCK DIAGRAM.....................66

7.3.2 OPERATIONAL FLOW CHART .................67

7.4 CLEANING ..........................................................68

8. OPERATIONS............................................................68

CDX-M8127ZT/WL

1. SPECIFICATIONS

General

Power source ........................................................................................ 13.2 V DC (10.5 16.0 V allowable)

Grounding system .................................................................................................................. Negative type

Backup current ........................................................................................................................ 1.0 mA or less

Dimensions (No including the brackets) .............................................. 248.2(W) x 66.0(H) x 164.5(D) mm

Weight (CDX-M8127ZT/WL) ................................................................................................................ 2.09 kg

(CDX-M8027ZT/E) .................................................................................................................... 2.05 kg

CD player

System .............................................................................................................. Compact disc audio system

Usable discs .............................................................................................................................. Compact disc

Signal format ................................................................................................ Sampling frequency: 44.1 kHz

Number of quantization bits: 16; linear

Signal-to-noise ratio ................................................................................................................ 85 dB or more

Dynamic range ........................................................................................................................ 80 dB or more

Distortion .................................................................................................................................. 0.04 % or less

Separation ................................................................................................................................ 65 dB or more

Number of channels ........................................................................................................................ 2 (stereo)