Pioneer GMD-505 Service manual

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Service

 

Manual

ORDER NO.

 

GM-D505/XH/EW

CRT3076

5 CHANNEL POWER AMPLIFIER

GM-D505XH/EW, XR/EW GM-D505 XH/ES, XR/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 2003

K-ZZB. MAY 2003 Printed in Japan

 

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A[ 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:

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.

B

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.

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

C

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.

D

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.

E

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.

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CONTENTS

 

SAFETY INFORMATION............................................

2

5.

ELECTRICAL PARTS LIST........................................

21

1.

SPECIFICATIONS .......................................................

3

6.

ADJUSTMENT .........................................................

25

2.

EXPLODED VIEWS AND PARTS LIST ......................

4

7.

GENERAL INFORMATION.......................................

26

 

2.1

PACKING..............................................................

4

 

7.1 DIAGNOSIS .......................................................

26

 

2.2

EXTERIOR ............................................................

6

 

7.1.1

DISASSEMBLY.........................................

26

3.

SCHEMATIC DIAGRAM.............................................

8

 

7.1.2

CONNECTOR FUNCTION DESCRIPTION ......

27

 

3.1

SCHEMATIC DIAGRAM(GUIDE PAGE) ..............

8

 

7.2 IC ........................................................................

 

28

4.

PCB CONNECTION DIAGRAM................................

16

 

7.3 CIRCUIT DESCRIPTIONS ..................................

29

 

4.1

AMP UNIT..........................................................

16

8.

OPERATIONS ...........................................................

30

 

4.2

NETWORK PCB .................................................

20

 

 

 

 

 

4.3

CONNECTOR PCB .............................................

20

 

 

 

 

1. SPECIFICATIONS

Power source............................................................................................................

14.4 V DC (10.8 — 15.1 V allowable)

Backup current ................................................................................................................................................

 

 

3 mA or less

Grounding system ..........................................................................................................................................

 

 

Negative type

Current consumption ....................................................................................................

43.8 A (at continuous power, 4

)

Average current drawn* ......................................................................................................

10.9 A (4 for five channels)

Fuse ........................................................................................................................................................................

350 (W) × 52 (H) ×

25 A ×

3

Dimensions ......................................................................................................................

268 (D) mm

Weight ....................................................................................................................

3.9 kg (Leads for wiring not included)

Maximum power output ....................................................................................................

Channel A/B: 100 W ×

4 (4

)

 

Channel SUB: 300 W ×

1 (4

) / 600 W ×

1 (2

)

Continuous power output ............................................................................................

65 W ×

4 (4

) + 225 W ×

1 (4

)

 

(56 W × 4 (4 ) + 350 W ×

1 (2

))

 

 

(DIN45324, +B=14.4 V)

Load impedance ....................................................................................................

4 (Channel A/B: 4 — 8

allowable)

 

(Channel SUB: 2 — 8

allowable)

Frequency response ..................................................................................

Channel A/B: 10 — 40,000 Hz (+0 dB, –1 dB)

 

Channel SUB: 5 — 240 Hz (+0.5 dB, –3 dB)

Signal-to-noise ratio ......................................................................................................................

 

95 dB (IEC-A network)

Distortion ....................................................................................................................

Channel A/B: 0.01% (10 W, 1 kHz)

 

Channel SUB: 0.03% (10 W, 120 Hz)

Low pass filter (Channel SUB) ........................................................................................

Cut off frequency: 40 — 240 Hz

 

 

Cut off slope: –12 dB/oct

High pass filter (Channel A/B) ........................................................................................

Cut off frequency: 40 — 240 Hz

 

 

Cut off slope: –12 dB/oct

Bass level control (Channel SUB) ..............................................................................................................

 

 

–22 — +12 dB

 

 

 

(125 mV — 6.5 V)

Level/gain control (Channel A/B) ............................................................................................................

 

 

200 mV — 6.5 V

Maximum input level/impedance ..........................................................................................................

 

 

RCA: 6.5 V/22 k

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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2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

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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.)

-PACKING SECTION PARTS LIST

 

 

 

 

Part No.

 

 

 

GM-D505/XH/EW

 

GM-D505/XH/ES

Mark No. Description

GM-D505/XR/EW

 

GM-D505/XR/ES

 

1

Screw Assy

HEA0063

 

HEA0063

 

2

Screw

BYC40P180FZK

 

BYC40P180FZK

 

3

Polyethylene Bag

HEG0011

 

HEG0011

 

4

Polyethylene Bag

HEG0022

 

HEG0022

 

5

Carton

HHG0359

 

HHG0359

 

6

Contain Box

HHL0359

 

HHL0359

 

7

Protector

HHP0180

 

HHP0180

 

8-1

Owner’s Manual

HRD0231

 

HRD0232

 

8-2

Owner’s Manual

Not used

 

HRD0233

*

8-3

Warranty Card

HRY1157

 

Not used

 

9

Core

HTX0003

 

HTX0003

*

10

Polyethylene Bag

HEG0025

 

HEG0025

*

11

Lock Tie

HNV0025

 

HNV0025

- Owner's Manual

Part No.

Language

HRD0231

English, Spanish, German, French, Italian, Dutch

HRD0232

English, Spanish

HRD0233

Arabic, Portuguese

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- EXTERIOR SECTION PARTS LIST

Mark No. Description

Part No.

 

Mark No. Description

Part No.

 

 

 

 

 

 

 

 

 

 

 

 

1

Screw

BBZ30P060FMC

 

55 Diode(D611)

FML22S

2

Screw

BBZ30P080FMC

 

56 FET(Q610-617)

STP75NF75

3

Plate Unit

HXA0395

 

57 LED(D910)

DB3804X

4

Case

HNB0204

 

58 Variable Resistor(VR201,231) CCS1265

5

Lighting Conductor

HNC0128

 

59 Variable Resistor(VR131)

CCS1266

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Lighting Conductor

HNC0129

 

60 Beads Core

HTF0003

7

Lighting Conductor

HNC0130

 

* 61 Badge Unit

HXA0380

8

Lighting Conductor

HNC0139

 

62 Beads Core

HTF0001

9

Insulator

HNM0112

 

63 Variable Resistor(VR101,151) CCS1266

10

Insulator

HNM0144

 

64 Variable Resistor(VR251)

CCS1265

11

Heat Sink

HNR0240

 

 

 

12

Holder

HNV0051

 

 

 

13

Amp Unit(EW)

HWH0213

 

 

 

 

Amp Unit(ES)

HWH0214

 

 

 

14

Screw

BBZ30P050FZK

 

 

 

15

Screw

BBZ30P060SAD

 

 

 

16

Screw

BBZ30P080FMC

 

 

 

17

Screw

BBZ30P100SAD

 

 

 

18

Screw

BSZ30P160FMC

 

 

 

19

Terminal(CN605)

CKF1059

 

 

 

20

Terminal(CN606)

CKF1059

 

 

 

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Terminal(CN607)

CKF1059

 

 

 

22

Cushion

CNM6825

 

 

 

23

Fuse(25A)(FU601-603)

HEK0025

 

 

 

24

Pin Jack(CN801)

HKB0022

 

 

 

25

Pin Jack(CN802)

HKB0024

 

 

 

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Terminal(CN804)

HKE0045

 

 

 

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Terminal(CN803)

HKE0050

 

 

 

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Terminal(CN601)

HKE0051

 

 

 

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Connector(CN103)

HKS0005

 

 

 

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Clip

HNC0054

 

 

 

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Holder

HNC0143

 

 

 

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Holder

HNC0144

 

 

 

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Spacer

HNM0006

 

 

 

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Insulator

HNM0125

 

 

 

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Insulator

HNM0126

 

 

 

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Bar

HNR0124

 

 

 

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Heat Sink

HNR0201

 

 

 

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Heat Sink

HNR0202

 

 

 

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Heat Sink

HNR0203

 

 

 

40

Screw

PPZ30P120FZK

 

 

 

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Screw

VBZ30P110FZK

 

 

 

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Network Unit

HWG0030

 

 

 

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Connector(CN102)

HKS0004

 

 

 

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Clip

HNC0054

 

 

 

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Screw

PBB30P140FMC

 

 

 

46

Screw

PPZ30P120FZK

 

 

 

47

Light Pipe Unit

HXA0383

 

 

 

48

IC(IC501,502,551,552)

TDA7294V

 

 

 

49

FET(Q401,402)

IRF5305

 

 

 

50

FET(Q403,404)

IRFZ44E

 

 

 

51

Transistor(Q622)

2SD2395

 

 

 

52

Transistor(Q623)

2SB1566

 

 

 

53

Thermistor(TH601,602)

CCX1013

 

 

 

54

Diode(D610)

FML22R

 

 

 

 

 

 

 

 

 

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Pioneer GMD-505 Service manual

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3. SCHEMATIC DIAGRAM

3.1 SCHEMATIC DIAGRAM (GUIDE PAGE)

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

A

A-a

B NETWORK PCB(1/2)

 

 

A HPF

 

 

SWITCH

 

A Freq

10K(A)

A Gain

A Freq

 

A Gain

B

B Freq

20K(E)

B Freq B Freq

B Freq

C

Sub Freq

Sub Freq

D

B HPF

Gain

SWITCH

B

 

B Gain

Sub Gain Sub Gain 10K(A)

B NETWORKPCB(2/2)

E

F

 

 

Large size

A-a

A-b

SCH diagram

 

A-a

A-b

Guide page

A-a

A-b

Detailed page

 

BFC SWITCH

1

 

 

2

1

100K(B)

8

A B

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A-b

A

AMP UNIT

A

B

22

3

C

SL+

SR+

3

NOTE :

HEK0025

>

HEK0025

>

HEK0025

>

Symbol indicates a resistor.

No differentiation is made between chip resistors and discrete resistors.

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and discrete capacitors.

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.

 

NETWORK UNIT

 

Consists of

CONNECTOR

NETWORK PCB

CONNECTOR PCB

C PCB

 

 

A C

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