Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer GX GX-470 Pioneer_GX470-(Toyota,Lexus)
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ORDER NO.
CRT2916
GX470
AUDIO SYSTEM
HEAD UNIT
PRODUCED PIONEER MODEL
VEHICLE DESTINATION TOYOTA PARTS No. ID No.
AFTER No.
LEXUS GX470 U.S.A., CANADA November 2002 86120-60440 P1731 KEX-M8727ZT/UC
KEX-M8727ZT-91/UC
LEXUS GX470 U.S.A., CANADA November 2002 86120-60470 P1732 KEX-M8527ZT/UC
KEX-M8527ZT-91/UC
Manufactured for TOYOTA
by PIONEER CORPORATION PUB.NO.CRT2916
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A
For details, refer to "Important symbols for good services".
KEX-M8727ZT/UC (P1731) KEX-M8527ZT/UC (P1732)
B
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
C This service manual does not describe the CD test mode. For the operations in the CD test mode,
refer to the CD player's Service Manual.
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-1011 CRT2406 3L Cassette Mech. module: Mech.Description, Disassembly
D
- Supplementary model is identical to the original except for the addition of following items.
Description Part No.
KEX-M8727ZT-91/UC KEX-M8527ZT-91/UC
Polyethylene Bag CEG1174 CEG1174
Carton CHG4857 CHG4857
Contain Box CHL4857 CHL4857
* Air Cap CHW1947 CHW1947
E
Cover CEG1045(x2) CEG1045(x2)
F
2 KEX-M8727ZT/UC
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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: A
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, B
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.
C
D
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. E
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.
F
KEX-M8727ZT/UC 3
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CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 3
1. SPECIFICATIONS ............................................................................................................................................ 5
A 2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6
2.1 EXTERIOR................................................................................................................................................. 6
2.2 CASSETTE MECHANISM MODULE......................................................................................................... 8
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 10
3.1 BLOCK DIAGRAM ................................................................................................................................... 10
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 12
3.3 KEYBOARD UNIT.................................................................................................................................... 18
3.4 CASSETTE MECHANISM MODULE....................................................................................................... 20
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 22
4.1 MAIN UNIT............................................................................................................................................... 22
4.2 KEYBOARD UNIT.................................................................................................................................... 26
4.3 CASSETTE MECHANISM MODULE....................................................................................................... 27
B
5. ELECTRICAL PARTS LIST ............................................................................................................................ 29
6. ADJUSTMENT ............................................................................................................................................... 35
6.1 CONNECTION DIAGRAM ....................................................................................................................... 35
6.2 TUNER/AUDIO ADJUSTMENT ............................................................................................................... 41
6.3 SELF-DIAGNOSTIC FUNCTION ............................................................................................................. 43
7. GENERAL INFORMATION ............................................................................................................................. 46
7.1 DIAGNOSIS ............................................................................................................................................. 46
7.1.1 DISASSEMBLY ..................................................................................................................................... 46
7.1.2 CONNECTOR FUNCTION DESCRIPTION .......................................................................................... 47
7.1.3 TROUBLESHOOTING .......................................................................................................................... 48
7.2 IC ............................................................................................................................................................. 49
C 7.3 EXPLANATION ........................................................................................................................................ 52
7.3.1 SYSTEM BLOCK DIAGRAM ................................................................................................................ 52
7.3.2 OPERATIONAL FLOW CHART ............................................................................................................ 54
7.4 CLEANING............................................................................................................................................... 55
8. OPERATIONS ................................................................................................................................................ 56
D
E
F
4 KEX-M8727ZT/UC
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1. SPECIFICATIONS
General
Power source . . . . . . . 13.2 V(10.5V--16.0V allowable) A
Backup current. . . . . . . . . . . . . . Less than 0.3 mA
Grounding system . . . . . . . . . . . . . . Negative type
Weight . . . . . . . . . . . . . . . . . . . . . . . . 1.16 kg
Tape player
Tape . . . . . . . . . Compact cassette tape (C-30 - C-90)
Tape speed . . 4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)
Wow & flutter. . . . . . . . . . . Less than 0.2 %(WRMS)
Fast forward/rewind time. . . . Less than 110 sec. for C-60 B
Stereo separation . . . . . . . . . . . . . More than 30 dB
Signal-to-noise ratio . . . . . . . . . . . . More than 40 dB
FM tuner
Frequency range. . . . . . . . . . 87.75,87.9 - 107.9 MHz
Usable sensitivity . . . . .Less than 14 dB◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo