Pioneer GM-3000-T Service manual

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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. JUNE 2004 Printed in Japan

ORDER NO.

CRT3239

BRIDGEABLE POWER AMPLIFIER

GM-3000T/X1H/EW

GM-3000T/X1H/UC

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

GM-3000T/X1H/ES

234

GM-3000T/X1H/EW

[ 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.

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.

ARNING

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

GM-3000T/X1H/EW

CONTENTS

SAFETY INFORMATION............................................2

1. SPECIFICATIONS .......................................................3

2. EXPLODED VIEWS AND PARTS LIST ......................4

2.1 PACKING..............................................................4

2.2 EXTERIOR............................................................6

3. SCHEMATIC DIAGRAM.............................................8

3.1 OVERALL CONNECTION DIAGRAM..................8

4. PCB CONNECTION DIAGRAM................................10

4.1 AMP UNIT..........................................................10

5. ELECTRICAL PARTS LIST........................................14

6. ADJUSTMENT.........................................................16

7. GENERAL INFORMATION.......................................17

7.1 DIAGNOSIS .......................................................17

7.1.1 DISASSEMBLY.........................................17

7.1.2

CONNECTOR FUNCTION DESCRIPTION ......18

8. OPERATIONS ...........................................................19

1. SPECIFICATIONS

Power source .......................................................................................................... 14.4 V DC (10.8 — 15.1 V allowable)

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

Backup Current.............................................................................................................................................. 5.1 mA or less

Current consumption .................................................................................................... 11.3 A (at continuous power, 4 Ω)

Average current drawn* ........................................................................................................ 3.8 A (4 Ω for two channels)

5.9 A (4 Ω for one channel)

Fuse .............................................................................................................................................................................. 20 A

Dimensions ...................................................................................................................... 300 (W) × 61 (H) × 157 (D) mm

Weight .................................................................................................................... 2.6 kg (Leads for wiring not included)

Maximum power output .................................................................................................................... 80 W × 2 / 200 W ×1

Continuous power output ........................................................................ 60 W × 2 / 150 W × 1 (DIN45324, +B=14.4 V)

Load impedance .......................................................................................................................... 4 Ω (2 — 8 Ω allowable)

(Bridge connection: 4 — 8 Ω allowable)

Frequency response .......................................................................................................... 10 — 45,000 Hz (+0 dB, –1 dB)

Signal-to-noise ratio .................................................................................................................... 100 dB (IEC-A network)

Distortion ........................................................................................................................................ 0.008 % (10 W, 1 kHz)

Separation ...................................................................................................................................................... 55 dB (1 kHz)

Low pass filter .............................................................................................................................. Cut off frequency: 80 Hz

Cut off slope: –12 dB/oct

Maximum input level/impedance .................................................................................. RCA: 6.5 V/22 kΩ (0.4 — 6.5 V)

Speaker: 26 V/40 kΩ (1.6 — 26 V)

Note:

• Specifications and the design are subject to possible modification without notice due to improvements.

*Average current drawn

• The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.

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GM-3000T/X1H/EW

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

GM-3000T/X1H/EW

Part No.

Mark No. Description GM-3000T/X1H/EW GM-3000T/X1H/UC GM-3000T/X1H/ES

1 Cord Assy HDE0036 HDE0036 HDE0036 2 Screw Assy HEA0058 HEA0058 HEA0058 3 Screw BYC40P180FZK BYC40P180FZK BYC40P180FZK 4 Polyethylene Bag HZE0002 HZE0002 HZE0002 5 Polyethylene Bag HEG0013 HEG0013 HEG0013

* 6-1 Warranty Card HRY1157 Not used HRY1157 * 6-2 Card Not used ARY1048 Not used

6-3 Owner’s Manual HRD0272 HRD0271 HRD0273 6-4 Owner’s Manual Not used Not used HRD0274

7 Carton HHG0434 HHG0434 HHG0434

8 Contain Box HHL0434 HHL0434 HHL0434 9 Protector HHP0250 HHP0250 HHP0250

- PACKING SECTION PARTS LIST

NOTE:

- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

- Screws adjacent to ∇ mark on the product are used for disassembly.

- For the applying amount of lubricants or glue, follow the instructions in this manual.

( In the case of no amount instructions, apply as you think it appropriate.)

- Owner's Manual

Part No. Language HRD0271 English, French HRD0272 English, Spanish, German, French, Italian, Dutch HRD0273 English, Spanish HRD0274 Arabic, Portuguese(B)

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