Pioneer GM-X642 User manual

PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.

PIONEER EUROPE N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2000 K-ZZA. MAR. 2000 Printed in Japan

ORDER NO.

CRT2480

BRIDGEABLE POWER AMPLIFIER

GM-X642 X1R/EW

Service

Manual

CONTENTS

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

2. EXPLODED VIEWS AND PARTS LIST ......................3

3. SCHEMATIC DIAGRAM.............................................6

4. PCB CONNECTION DIAGRAM................................12

5. ELECTRICAL PARTS LIST........................................16

6. ADJUSTMENT .........................................................19

7. GENERAL INFORMATION.......................................20

7.1 DISASSEMBLY ..................................................20

8. OPERATIONS AND SPECIFICATIONS ....................21

GM-X542 X1R/UC,ES

GM-X642/X1R/EW

GM-X642,X542

1. SAFETY INFORMATION

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.

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

GM-X642,X542

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

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.

-PACKING SECTION PARTS LIST

Part No.

Mark No. Description GM-X642/X1R/EW GM-X542/X1R/UC GM-X542/X1R/ES

1-1 Owner’s Manual HRD0136 HRD0135 HRD0137

1-2 Owner’s Manual Not used Not used HRD0143

* 1-3 Warranty Card HRY1157 Not used Not used

* 1-4 Card Not used ARY1048 Not used

2 Screw BYC40P180FZK BYC40P180FZK BYC40P180FZK

3 Polyethylene Bag HEG0011 HEG0011 HEG0011

4 Polyethylene Bag HEG0009 HEG0009 HEG0009

5 Carton HHG0242 HHG0241 HHG0243

6 Contain Box HHL0242 HHL0241 HHL0243

7 Protector HHP0078 HHP0078 HHP0078

8 •••••

9 Cover HNS0101 HNS0101 HNS0101

GM-X642,X542

2.2 EXTERIOR

GM-X642,X542

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

1 Screw BBZ30P060FMC

2 Screw BBZ30P080FMC

3 Screw BSZ30P050FZK

4 Panel See Contrast table(2)

5 Case See Contrast table(2)

6 Heat Sink See Contrast table(2)

7 Plate HNS0077

8 Plate HNS0081

9 Cover HNS0101

10 Amp Unit See Contrast table(2)

11 Terminal(CN902) CKF1059

12 Pin Jack(CN851) HKB0001

13 Pin Jack(CN852) HKB0001

14 Terminal(CN901) HKE0036

15 Terminal(CN601) HKE0035

16 Clip HNC0054

17 Heat Sink HNR0151

18 Screw PPZ30P100SAD

19 Light Pipe Unit HXA0322

20 Screw PPZ30P100FZK

21 Fuse Holder HKE0012

22 Fuse(FU902)(25A) HEK0025

23 Thermistor(TH902) CCX1013

24 Screw(M2.6x6) HBA0012

(2) CONTRAST TABLE

GM-X642/X1R/EW and GM-X542/X1R/UC, ES are constructed the same except for the following:

Part No.

Mark No. Description GM-X642/X1R/EW GM-X542/X1R/UC GM-X542/X1R/ES

4 Panel HNB0111 HNB0112 HNB0112

5 Case HNB0116 HNB0114 HNB0114

6 Heat Sink HNR0150 HNR0156 HNR0156

10 Amp Unit HWH0130 HWH0129 HWH0131

ISOLATOR CIRCUIT

GAIN=1

HP/LP FILTER

80Hz

12dB/OCTAVE

POWER SUPPLY

OFF/LPF/HPF

GM-X642,X542

1234

A-a A-b

A-a

A-b

A-a

Large size

SCH diagram

Guide page

Detailed page

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS

LIST”.

A-a

AAMP UNIT

The >mark found on some component parts indicates

the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of

identical designation.

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

←

Symbol indicates a resistor.

No differentiation is made between chip resistors and

discrete resistors.

NOTE :

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and

discrete capacitors.

AMP

GAIN=7-31dB

BASS BOOST

60Hz

0-18dB/OCTAVE

/EW, ES

BFC

HEK0025

FU902

GM-X642,X542

5678

A-b

GM-X642,X542

1234

Symbol in

No differe

discrete re

NOTE :

Symbol in

No differe

discrete ca

ISOLATOR CIRCUIT

GAIN=1

HP/LP FILTER

80Hz

12dB/OCTAVE

BASS BOO

60Hz

0-18dB/OCT

OFF/LPF/HPF

A-a

A-a A-b

GM-X642,X542

5678

POWER SUPPLY

A-a

A-a A-b

GM-X642,X542

1234

AAMP UNIT

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

←

ymbol indicates a resistor.

o differentiation is made between chip resistors and

iscrete resistors.

ymbol indicates a capacitor.

o differentiation is made between chip capacitors and

iscrete capacitors.

AMP

GAIN=7-31dB

S BOOST

60Hz

B/OCTAVE

A-a A-b

A-b

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