ORDER NO.
CRT3022
PUB. NO.
CRT3022
AUDIO SYSTEM
HEAD UNIT
Manufactured for TOYOTA
by PIONEER CORPORATION
VEHICLE
DESTINATION
PRODUCED AFTER
TOYOTA PART No.
ID No.
PIONEER MODEL No.
LEXUS RX330
U.S.A.
February 2003
86120-48180
P6826
FX-MG8227ZT/UC
CANADA
86120-48320
P6826
FX-MG8227ZT-91/UC
86120-48190
P6827
FX-MG8327ZT/UC
86120-48330
P6827
FX-MG8327ZT-91/UC
RX330
Service
Manual
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FX-MG8227ZT/UC
For details, refer to "Important symbols for good services".
FX-MG8227ZT/UC(P6826)
FX-MG8327ZT/UC(P6827)
LOAD
LOAD
- 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
CX-951
CRT2872
G2
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
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FX-MG8227ZT/UC
SAFETY INFORMATION
- CD section precaution
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-solder) by referring to "the DISAS-
SEMBLY" on page 85.
3. After replacing the pickup unit, be sure to check the
grating. (See p.75.)
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.
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FX-MG8227ZT/UC
[ 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.
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FX-MG8227ZT/UC
CONTENTS
SAFETY INFORMATION ......................................................................................................................................................3
1. SPECIFICATIONS .................................................................................................................................................................6
2. EXPLODED VIEWS AND PARTS LIST ................................................................................................................................7
2.1 PACKING(FX-MG8227ZT-91/UC, FX-MG8327ZT-91/UC) .............................................................................................7
2.2 EXTERIOR ......................................................................................................................................................................8
2.3 CD MECHANISM UNIT(1) ...........................................................................................................................................12
2.4 CD MECHANISM UNIT(2) ...........................................................................................................................................14
2.5 CASSETTE MECHANISM MODULE ...........................................................................................................................16
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.............................................................................................................19
3.1 BLOCK DIAGRAM(1) ...................................................................................................................................................19
3.2 BLOCK DIAGRAM(2) ...................................................................................................................................................20
3.3 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ..................................................................................................22
3.4 KEYBOARD UNIT.........................................................................................................................................................28
3.5 CD MECHANISM MODULE(GUIDE PAGE) ................................................................................................................30
3.6 CASSETTE MECHANISM MODULE ...........................................................................................................................40
4. PCB CONNECTION DIAGRAM..........................................................................................................................................42
4.1 MAIN UNIT...................................................................................................................................................................42
4.2 KEYBOARD PCB ..........................................................................................................................................................46
4.3 CD MECHANISM MODULE.........................................................................................................................................48
4.4 CASSETTE MECHANISM MODULE ...........................................................................................................................54
4.5 RIGHT PCB, LEFT PCB.................................................................................................................................................56
5. ELECTRICAL PARTS LIST..................................................................................................................................................57
6. ADJUSTMENT ...................................................................................................................................................................66
6.1 CONNECTION DIAGRAM............................................................................................................................................66
6.2 AUDIO, TUNER ADJUSTMENT ..................................................................................................................................70
6.3 TEST MODE .................................................................................................................................................................72
6.4 CD ADJUSTMENT .......................................................................................................................................................73
6.5 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT .........................................................................75
6.6 TEST MODE(CD) ..........................................................................................................................................................77
6.7 AVC-LAN DIAGNOSIS MODE .....................................................................................................................................81
7. GENERAL INFORMATION.................................................................................................................................................85
7.1 DIAGNOSIS..................................................................................................................................................................85
7.1.1 DISASSEMBLY..........................................................................................................................................................85
7.1.2 PCB LOCATIONS ......................................................................................................................................................90
7.1.3 CONNECTOR FUNCTION DESCRIPTION................................................................................................................91
7.2 PARTS...........................................................................................................................................................................92
7.2.1 IC................................................................................................................................................................................92
7.2.2 DISPLAY ....................................................................................................................................................................99
7.3 EXPLANATION...........................................................................................................................................................100
7.3.1 SYSTEM BLOCK DIAGRAM...................................................................................................................................100
7.3.2 OPERATIONAL FLOW CHART ...............................................................................................................................103
7.4 NOTES ON SERVICING .............................................................................................................................................104
7.4.1 CLEANING...............................................................................................................................................................104
7.4.2 FACTORY SETTINGS..............................................................................................................................................104
8. OPERATIONS ...................................................................................................................................................................105