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Service
Manual GM-4000F/X1R/EW
ORDER NO.
CRT3241
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-4000F
GM-4000F X1R/UC
X1R/EW
GM-4000F X1R/ES
For details, refer to "Important symbols for good services".
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 2004 K-ZZB. MAR. 2004 Printed in Japan
1 2 3 4
A SAFETY INFORMATION
UC model
CAUTION
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.
B
WARNING
This product contains lead in solder and 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
- Service Precaution
You should conform to the regulations governing the product
C (safety, radio and noise, and other regulations), and should keep
the safety during servicing by following the safety instructions
described in this manual.
[ 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:
D 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,
E 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.
F
2 GM-4000F/X1R/EW
1 2 3 4
5 6 7 8
CONTENTS A
SAFETY INFORMATION............................................2 5. ELECTRICAL PARTS LIST........................................18
1. SPECIFICATIONS .......................................................3 6. ADJUSTMENT .........................................................21
2. EXPLODED VIEWS AND PARTS LIST ......................4 7. GENERAL INFORMATION.......................................22
2.1 PACKING..............................................................4 7.1 DIAGNOSIS .......................................................22
2.2 EXTERIOR ............................................................6 7.1.1 DISASSEMBLY.........................................22
3. SCHEMATIC DIAGRAM.............................................8 7.1.2 CONNECTOR FUNCTION DESCRIPTION ......23
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) .....8 8. OPERATIONS ...........................................................24
4. PCB CONNECTION DIAGRAM................................14
4.1 AMP UNIT..........................................................14 B
1. SPECIFICATIONS
Power source .......................................................................................................... 14.4 V DC (10.8 -- 15.1 V allowable)
Grounding system .......................................................................................................................................... Negative type
Backup current .................................................................................................................................................. 3 mA or less C
Current consumption .................................................................................................... 18.1 A (at continuous power, 4 )
Average current drawn* ........................................................................................................ 6.6 A (4 for four channels)
9.0 A (4 for two channels)
Fuse .............................................................................................................................................................................. 25 A
Dimensions ...................................................................................................................... 300 (W)