Pioneer GMX-364 Service manual

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 2001

K-ZZB. NOV. 2001 Printed in Japan

ORDER NO.

CRT2781

BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER

GM-X364

XR/UC,XR/EW,XR/ES

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 DIAGNOSIS .......................................................20

7.1.1 DISASSEMBLY .............................................20

7.1.2 CONNECTOR FUNCTION DESCRIPTION ...21

8. OPERATIONS AND SPECIFICATIONS....................22

GM-X364/XR/UC

For details, refer to "Important symbols for good services" on the next page.

2

GM-X364

1. 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.

W

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

[ 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.

3

GM-X364

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.

- 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

Model Part No. Language
GM-X364/XR/UC HRD0198 English, French
GM-X364/XR/EW HRD0199 English, Spanish, German,

French, Italian, Dutch

GM-X364/XR/ES HRD0200 English, Spanish

HRD0201 Portuguese(B), Arabic

- PACKING SECTION PARTS LIST

Part No.

Mark No. Description GM-X364/XR/UC GM-X364/XR/EW GM-X364/XR/ES

* 1-1 Warranty Card Not used HRY1157 Not used

1-2 Owner’s Manual HRD0198 HRD0199 HRD0200
1-3 Owner’s Manual Not used Not used HRD0201

* 1-4 Card ARY1048 Not used Not used

2 Screw BYC40P180FZK BYC40P180FZK BYC40P180FZK

3 Polyethylene Bag HEG0011 HEG0011 HEG0011
4 Polyethylene Bag HEG0013 HEG0013 HEG0013
5 Carton HHG0316 HHG0316 HHG0316
6 Contain Box HHL0316 HHL0316 HHL0316
7 Protector HHP0106 HHP0106 HHP0106

8 Cord Assy HDE0036 HDE0036 HDE0036
9 Cover HNS0101 HNS0101 HNS0101

10 Screw Assy HEA0058 HEA0058 HEA0058

38

38

38

38

30

35

36

35

36

37

37

8

6

6

6

6

11

29

5

13

10

6

6

6

6

21

22

7

7

7

24

19

20

2

2

9

2

14

2

14

4

4

16

15

7

28

23

28

15

15

15

17

15

25

7

7

15

7

15

7

28

15

15

28

27

18

12

1

12

1

3

3

3

3

1

3

3

3

12

12

3

3

3

3

1

1

1

26

26

30

31

32

33

34

35

37

36

35

37

36

4

GM-X364

2.2 EXTERIOR

A

5

GM-X364

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

1 Screw BBZ30P050FUC
2 Screw BBZ30P060FMC
3 Screw BBZ30P080FMC
4 Screw BSZ30P050FZK
5 Screw(M3x5) HBA0006

6 Screw(M3x8) HBA0011
7 Screw CBA1323
8 Cover HNS0101
9 Case HNB0132

10 Panel HNB0170

11 Panel HNB0176
12 Holder HNC0080
13 Heat Sink HNR0206
14 Screw PPZ30P120FZK
15 Spacer HNV0016

16 Amp Unit

See Contrast table(2)

17 Terminal(CN903) CKF1059
18 Fuse(25A) HEK0025
19 Pin Jack(CN802) HKB0001
20 Pin Jack(CN801) HKB0005

21 Terminal(CN851) HKE0033
22 Terminal(CN901) HKE0036
23 Connector(CN803) HKM1077
24 Connector(CN804) HKM1077
25 Buss Bar HNC0043

26 Clip HNC0054
27 Holder HNC0082
28 Screw PPZ30P100SAD
29 Light Pipe Unit HXA0322
30 Thermistor(TH951,952) CCX1013

31 Diode(D957) FML22R
32 Diode(D956) FML22S
33 Transistor(Q961) 2SB1566
34 Transistor(Q960) 2SD2395
35

Transistor(Q156,256,356,456)2SB1587

36

Transistor(Q155,255,355,455)2SD2438

37

Transistor(Q154,254,354,454)2SD1485

38

Transistor(Q956,957,958,959)STP55NE06FP

(2) CONTRAST TABLE
GM-X364/XR/UC, EW and ES are constructed the same except for the following:

Part No.

Mark No. Description GM-X364/XR/UC GM-X364/XR/EW GM-X364/XR/ES

16 Amp Unit HWH0178 HWH0179 HWH0180

3. 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”.

6

GM-X364

A

1

234

B

C

D

12

34

INPUT
SELECT
SWITCH

A-a A-b

A-aA-a

A-b A-b

A-b A-b

A-a A-a

Large size

SCH diagram

Guide page

Detailed page

A

A-a

FUSE

HEK0025

Decimal points for resistor
and capacitor fixed values
are expressed as :

2.2 2R2

0.022 R022

←

←

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.

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.

>

A

AMP UNIT

CH A

LPF / HPF

SELECT
SWITCH

CH B

LPF / HPF

SELECT
SWITCH

CH B
GAIN

CONTROL

CH A
GAIN

CONTROL

BFC SWITCH

7

GM-X364

5

6

7

8

A

B

C

D

5

6

7

8

A

A-b

8

GM-X364

A

1

234

B

C

D

12

34

INPUT

SELECT

SWITCH

CH A

LPF / HPF

SELECT

SWITCH

CH

LPF /

SELE

SWIT

A-a

A-b

A-a

1

3

2

4

5