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ORDER NO.
CRT4265
RX
RX(hybrid)
AUDIO SYSTEM
POWER AMPLIFIER
VEHICLE DESTINATION PRODUCED AFTER OEM PARTS No. ID No. PIONEER MODEL No.
RX OVERSEAS December 2008 86100-48160 ----- GM-8187ZT/WL
RX(hybrid) GM-8187ZT-91/WL
RX U.S.A., CANADA December 2008 86100-0E070 ----- GM-8187ZT/XH/UC
RX(hybrid) GM-8187ZT91/XH/UC
Manufactured for TOYOTA
by PIONEER CORPORATION PUB.NO.CRT4265
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A
B
GM-8187ZT/WL, XH/UC
Supplementary model is identical to the original except for the addition of following items.
Description -91 model
Cover CEG1045
C
Polyethyene Bag CEG1190
Unit Box CHG3331
Contain Box CHL3331
D
For details, refer to "Important Check Points for Good Servicing".
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SAFETY INFORMATION
CAUTION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. A
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safety 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 safety, you should not risk trying to do so
and refer the repair to a qualified service technician.
WARNING
This product contains 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
Where in a manufacturer's service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:
C
D
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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
A
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.
B 3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
C In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
D a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
E
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
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GM-8187ZT/WL
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CONTENTS
SAFETY INFORMATION .....................................................................................................................................3
1. SERVICE PRECAUTIONS................................................................................................................................6
1.1 SERVICE PRECAUTIONS .........................................................................................................................6 A
1.2 NOTES ON SOLDERING...........................................................................................................................6
2. SPECIFICATIONS.............................................................................................................................................7
2.1 SPECIFICATIONS ......................................................................................................................................7
3. BASIC ITEMS FOR SERVICE ..........................................................................................................................7
3.1 CHECK POINTS AFTER SERVICING .......................................................................................................7
3.2 JIGS LIST ...................................................................................................................................................8
4. BLOCK DIAGRAM ..........................................................................................................................................18
5. DIAGNOSIS ....................................................................................................................................................22
5.1 OPERATIONAL FLOWCHART.................................................................................................................22
5.2 CONNECTOR FUNCTION DESCRIPTION .............................................................................................23
6. SERVICE MODE.............................................................................................................................................23
7. DISASSEMBLY ...............................................................................................................................................24 B
8. EACH SETTING AND ADJUSTMENT............................................................................................................25
9. EXPLODED VIEWS AND PARTS LIST ..........................................................................................................25
9.1 EXTERIOR ...............................................................................................................................................26
10. SCHEMATIC DIAGRAM................................................................................................................................28
10.1 AMP UNIT(GUIDE PAGE) ......................................................................................................................28
10.2 DSP UNIT (DSP)(GUIDE PAGE)............................................................................................................34
10.3 DSP UNIT (CPU)(GUIDE PAGE) ...........................................................................................................40
10.4 DSP UNIT (ASL).....................................................................................................................................46
11. PCB CONNECTION DIAGRAM ....................................................................................................................48
11.1 AMP UNIT...............................................................................................................................................48
11.2 DSP UNIT ...............................................................................................................................................52
C
12. ELECTRICAL PARTS LIST...........................................................................................................................56
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E
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1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
A
1. 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. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic
induction.
3. The screws(CBA2084, CBA2169) cannot be reused once it is removed.
4. When fix the screw of the Case(CNB3451), hold down the case and fix it.
5. When diagnosing a product, take care of its heated portion.
Power IC (IC201, 202, 203)
Heat Sink
B 6. When not attaching a DSP unit in parallel on the amp unit, the connector of an amp unit may be damaged.
7. If you need to replace IC1201, excange the whole of DSP Unit (CWH1351).
Because the binding process (for giving ID number to the ICs) cannot be done by service.
C
1.2 NOTES ON SOLDERING
For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
D
accompanied by reworking of soldering.
Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
E Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
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2. SPECIFICATIONS
2.1 SPECIFICATIONS
A
Power source ............................................................................................................................. 13.2