Alpine MRDM-301 Service manual

MRD-M301

SERVICE MANUAL

MONO POWER AMPLIFIER

2 / 04-A
68E36265S01

TO ALPINE Home Page

<Cautions for Safe Repair Work>

r

s

- 2 -

The following cautions will prevent accidents in the workplace and will ensure safe products.
*The symbols indicate caution is needed to prevent injuries and damage to property.
The symbols and their meanings follow.

Warning

Caution

*The following symbols indicate two levels of cautions.

When you see this symbol, you have to be very careful.

When you see this symbol, you have to follow the instructions there.

If you ignore this symbol and handle the product incorrectly or unsafely,
serious injury or death may result.

If you ignore this symbol and handle the product incorrectly or unsafely,
injury or only material damage may result.

Warning

Do not look squarely into the laser light
coming from the pickup. Always use a designated fuse.

You may loose you sight. Use of an incorrect fuse may result in a fire.

Caution

Do not allow wiring to be caught in the Battery Caution
screw/chassis. Use the designated battery.

If wiring is caught in the screw/chassis, it may Confirm the correct polarity and seat of the
cause a short circuit, resulting in a fire. battery.

Fuse Caution

An incorrect battery or an improperly connected
or seated battery may result in a fire.

High Temperature Caution Designated Parts Caution

Touching the heat sink may cause severe burns. Look up the part list and ensure that only

designated parts are used to prevent problems or
accidents.

Reverse Power Supply Connections o
Misconnections Caution Ensure that the wiring is correct when rewiring to

Reverse power supply connections or prevent problems with ignition/breakdown.
misconnections may cause ignition problems and
smoke may result.

Soldering Caution Wear Glove

Hot solder from solder splash may cause severe Wear gloves to prevent electrical shocks or injury
burns. from the end face of the metal.

Wiring Caution

Contents

- 3 -

MRD-M301

Packing Assembly Parts List
Packing Method View
Specifications
Block Diagram
Parts Layout on P.W.Boards and Wiring Diagram
Schematic Diagram
Terminal Voltage of IC/ TR

7 , 8

9 , 10

11 to 13

Description of IC Terminal
Exploded View (Cabinet)

4
4
5
6

14
15

NOTE : Due to continuing product improvement, specifications and designs are subject to
change without notice.

Packing Assemb ly Parts List

y

TO CONTENTS

- 4 -

MRD-M301

Symbol SymbolDescription

No. No.

101-1 03E 36238S 01 SCR(M4X20 TPG 1,BLK) #1 102-1 68P 04190K 32 OW NER S MANUAL(AE )
101-2 03E36208S01 WRENCH BOLT(M3X12(WHT)) $1 102-1 68P04190K18 OWNERS MANUA L(GE)
101-3 15E36239S01 COVER TERMINAL(A) %1 102-1 68-00346Z14 OWNER S MANUAL(EU)
101-4 01E28659S01 WRENCH (2mmX2.3mm) $1 102-2 68P04190K19 OWNERS MANUAL(I.G.S)
101-5 01E 36240S 01 ASSY KIT SP-IN WIRE

Part No. Part No.

NOTE : #1 : For North American Model Only, $1 : For European M odel Only,

&1 : For Chinese Model Onl

, Others : Common.

Packing Method View

102 -1

$1

102 -2

Description

101 -1

101 -4

101 -5

101 -2

101 -3

NOTE : $1 : For European Model Only, Others : Common.

MRD-M301

TO CONTENTS

- 5 -

Specifications

Power Output (20Hz, 100Hz) ................................................................................. 4ohm, 1% T.H.D., 14.4V : 175W

2ohm, 1% T.H.D., 14.4V : 350W

T.H.D. (100Hz) ................................................................................................................ 100W/ch/4ohm, 14.4V : 1%

S/N Ratio (Ref. Output 175W/4ohm, Input short, , Gain Position 0dB) ............................................................... 81dB

Residual Noise (Input Short, , Gain Position 0dB) ............................................................................................. 30mV

Frequency Response (Ref. 100Hz, 0dB) ........................................................................................... 20Hz : -0.5±2dB

350Hz : -6±2dB

Input Sensitivity (Power Gain at 175W/4ohm Output)

RCA 0.1V Input (Input Gain SW : HIGH MODE) .............................................. RCA 0dB : 0±2dB

RCA -6dB : -6±3dB
RCA -12dB : -12±3dB
RCA -18dB : -18±3dB

RCA 1.0V Input (Input Gain SW : LOW MODE) .............................................. RCA 0dB : 0±2dB

SP 1V Input (Input Gain SW : HIGH MODE) ...................................................... SP 0dB : 0±2dB

Remote on Voltage (1W Output) ...................................................................................................................... 6.5±1V

Current Drain ........................................................................................................................................ No Signal : 2A

10% T.H.D., 2ohm Load : 65A

Remote Current Drain : 0.26±0.1mA

Back-Up Current Drain : 1.2mA

Fuse Requirement ................................................................................................... 20A(Peak) x 2 (For Battery Line)

Power Source ............................................................................................................................... DC14.4V (11~16V)

Dimensions (W x H x D) ................................................................................................................. 241 x 65 x 270mm

Weight ................................................................................................................................................................. 2.8kg

NOTE : Due to Continuing product improvement, specifications and designs are subject to change without notice.

Block Diagram

TO CONTENTS

- 6 -

MRD-M301

JK101

INPUT

INPUT
BUFFER

ISOLATOR

DIN601

Commander

AND
GATE

VFD
MODULE

H/L

MODE

SW

L/R MIX
AMP

VFD CIG Vol
Supply

VFD Filament
Vol Supply

BURRER

Lch

DSP

L+Rch

2nd
PLL

POWER +25V, -25V
ANALOG +15V, -15V

DIGITAL
POWER
AMPLIFIER

ANALOG +5V

DIGITAL +5V

DISPLAY +8V

5v Reg.IC

Output
FET

Output
FET

LC Filter

LC Filter

Protection
circuit

Over current
low 2nd volt
TET thermal

TML301

OUTPUT+

OUTPUT-

u-COM
RESET

u-COM

u-COM
+5V

BAT_DET

u-COM
5V

1st Current
Detect

TML601

BAT

REMOTE

GND

JK101

TO CONTENTS

TO PARTS LIST

TO P. W. BOARD

- 9 -

注)回路図中のN.U.部品は未使用。

回路図(1/2)

RCA JACK 02P

TP571

D562

SB05-05CP

TP574

TP573

TP127

E102

E101

E201

E202

R670

TP124

HZS6A1L

TP207

ZD671

R591

470-1/4

220

C107

C207

E203

22/50

220

E554

Q671
2SB1238Q

R673

10k-1/4

E103
22/50

47/16

TP670

2200p

2200p

Z608
Z610
Z611

TP592

E106
22/50

R222 R122

E206

22/50

CNF20R102S

Z579

IC551

BA00BC0WFP

0.1
R555

C553

R556

BK2125HS601
BK1608HM102
BK2125HS501

C523

1k-1/4

N.U.

N.U.

TP593
R594

27k

51k

Z578

0.022

1k-1/4

R598

D101

DA204K

D104

DA204K

D201

DA204K

D204

DA204K

CNF20R102S

Z605

BK2125HS601

Z606

BK2125HS601

Z607

BK2125HS601

22/25

E553

BK1608HM102

IC572

S-80943CNMC-T2

IC522

R599

C168

0.01

N.U.

TP110

TP111

TP112

R123

R126

R223

R226

TP520

0.01

C664

E652

47/16

E653

C665

0.01

47/16

CB601

TP600
TP601
TP602

TP603

TP606

Z612

TP807

TC74VHC08AFT

TP409

R527

R524

TP113

0

0

0

0

Z613

BK2125HS601

Z803

C578

0.01

10k

R528

4.7k

R525

C524

56k 39k

R526

E121

1k

R517

IC511

MC24C01-WMN6T

0.022

R519

220-1/4

BK2125HS601

Z601

BK1608HM102
Z602
Z603
Z604

TP604

TP605

TP607
TP608
TP609

TP610

TP518

C521

6800p

S-80942CNMC-T2

DTC124EK

4.7k

D521

1SS133

TP408

0.01

0.01

C169

47/16

C513

BK1608HM102

BK1608HM102
BK1608HM102

Z609

BK1608HM102

IC521

R579

10k

Q571

R542

ZD521

HZS15-2L

E221

47/16

C165

0.01

TP104

Z164

BK1608HM102

0.01

C522

TP517

30k

R541

1M

10k

R543

R151

1M

XL151

33.8MHz

2.2k

R512

10k

R521

D603

11ES2

0.01

C541

R152

12p

C151

C152

2.2k

R511

TP519

CL501

7.70MHz

10k

R520

10k

R501

TP510

10k

R504

IC602

NJM78L05UA

E641

470/25

ZD522

HZS5BLL

IC104

TC94A04AFD

C166

0.01

R160

1k

TP105

1k

TP106

12p

1

C015

0.1

C500

TP522

10k

R506

E642

470/10

R161

1k

TP114

C161

TP116

0.01

TP107

C160
1500p

10k

R545

TP513

0.01

C831

C162

IC501

TMP86PM47U

47k

R819

R537

1k

TP512

0.01
TP108

0.01

C164

0.01

C163

R814

10k

10k

C838

820p

R544

C170

Z163

TP109

TP521

47p

47p

C176

BK2125HS601

Z162

BK2125HS601

Z161

BK2125HS601

R162

47k

TP117

C167

0.01

C350

0.01

8.2k

R508

TP508

N.U.

0.1

100p-CH

C504

820p

C839

100k

C506

C505

R516

R822

1k

R821

1k

TP578

R592

560-1/4

R590

560-1/4

TP577

R593

470-1/4

TP576

100k

R589

R588

R573

2.2k

TP122

TP128

R102

22k

R101

22k

1000p

C101

C201

1000p

R201

22k

R202

22k

TP206

TP123

R104

22k

C102

1000p

22k

R103

0.01

C824

IC101

NJM4580V

0.01

C823

22k

R203TP208

C202

1000p

TP209

22k

R560
1-1/4

1-1/4

TP535

SW101

R204

TP210

C826

C825

R551

R550

R813

10k-1/4

R661

TP660

C836

C837

R533

R108

0.01

0.01

180

100k

27k

122NA

SSAF

SSAF

TP211

1.8k-1/4

0.01

0.01

1k

TP121

R121

3.3k

R208

27k

N.U.

R817

N.U.

R818

IC550

R662

1.8k-1/4

Q663

DTC143XK

R534

47k

TP533

TP534

C532

TC74VHC08AFT

R823

3.3k

R221

R209

L551

220uH

NJM2360AM

Q664

2SB1243Q

R663

1.8k-1/4

C533

0.1

R532
47k

IC609

TP591

C577

0.01

TP120

100k

15k

R109

4.7k

R113

100k

4.7k

R213

R824

15k

R815

1.1k

IC103

NJM4558V

R816

1.1k

SD551

SB05-05CP

R664

1.8k-1/4
E661

470/25

R535

47k

IC531

R531

TP531

47k

0.1

TP119

R212

15k

Q550

2SB1238Q

47k

R558

TP532

IC102

NJM4558V

TP213

R559

NJM7805FA

C662

R115

220

R118

2200p

C204 C104

2200p

R215

220

R218

TP215

IC604

NJM7805FA

0.01

C663

C004

1000p

33-1/4

R563

33-1/4

R564

33-1/4

R565
R566

IC605

33-1/4

0.01

R672

47k-1/4

Q672

2SC2412K

30k

R671

C671

0.01

8.2k

R112

15k

C103
1000p

0.01

C828

C827

0.01

C203
1000p

TP212

24k

R552

E551

47/16

2.7k

220p

Q551
DTC144EK

R553

C551

IC603

NJM7808FA

0.01

C661

E662

470/10

1k

R536

TP501

TP115

IC607

TC74VHC74FT

IC608

TC7S04F

C840

0.1

R503

10k

TP507

0.1

0.1

100k

HZS5BLL

22/25

C507

C531

R572

E501

ZD523

C841

0.1

002-A5

TP503

22k

TP506

TP504

TP502

TP505

470

R571

0.1

0.1

0.1

100k

100k

4.7/50
IC532

LM20BIM7

C508

R502

C509

R518

C503

E573

10k

R820

TP509

R507

R500

0

C580

100p-CH

C581

100p-CH

Z573

TP575

100p

C573

0.01

C574

Z572

BK1608HM102

Z576

CNF20R102S

R132

1k

C112

1000p-CH

C111

1000p-CH

R131

1k

R231

1k

C211

C212

1000p-CH 1000p-CH

R232

1k

ACM4532

ACM4532

1000p

1000p

C221

C122

C222

1000p

LG102

C121

1000p

TML601

FUSE TERMINAL 3P

C001

100p

C021

BK1608HM102

Z574

BK1608HM102

100p

C575

0.01

C572

100k

R134

R137

100k

R133

TP126

100k

R237

R233

100k

R234

Z101

Z201

TP201

F601

0.01

Z575

BK1608HM102

C576
100p

DIN601
7P DIN SOCKET SCREW TYPE

Z571

BK1608HM102

C571

0.01

TP572

TP125

0

R135

C820

0.01

N.U.

R136

N.U.

0

R236

TP101

20A

L552

10uH

0

TP204

TP205

F101

0.01

C819

IC100

NJM4558V

0

R235

0.01

C822

0.01

C821

IC200

NJM4558V

R120

20A

C002

100p

3.3/50

330

100k

R105

3.3/50

3.3/50

100k

R205

R220

3.3/50

330

T802

CHOKE

C601

0.01

D601

11ES2N

30k-1/4

C022

0.01

LG101

0.012

TO CONTENTS

TO PARTS LIST

TO P. W. BOARD

- 10 -

注)回路図中のN.U.部品は未使用。

回路図(2/2)

C172

C171

TP175

0.01

TP176

R509

TP309

R359

3.3k

E362

E361

1/50

1/50

47k

47k

R510

TP324

R358

R013

C357

TP308

C360

0.1

0

R360

0.1

10k

N.U.

E331
1/50

R331

100-1/4

TP310 TP305

R318

1k

Z173

BK1608HM102

TP173

R171

3.3k

TP172

390

R172

TP178

C173

100

R173

0.47

C175

TP177

TP174

IC105

0.1

TC9246F

0.01TP179

C174

BK2125HS601

Z172

BK1608HM102

TP171

Z171

R356

10k

D566

DAP202K

TP566

TP314

TP313

TP311

TP312

C362
N.U.

TP323

R418

TP401

TP306

1k

3.9k-1/4

R417

3.9k-1/4

E811

R317

IC301

TDA7571

10/100

C351

C354

TP561

C359

C805

R306

TP302

100

1000p

E302

TP315

E402

TP413

TP412

33/63

33/63

TP407

TP317

TP303

TP414

TP411

27-1/4

E301

22-1/4

43-1/4

R314

56-1/4

R320

R316

R315

R313

R305

TP405

R413

43-1/4

E403

R416

R420

56-1/4

R415

22-1/4

33/63

27-1/4

R414

R406

100

2SC2412K

0.1

C313

C353

0.1

0.1

0.1

C356

0.1

C352

0.1

C355

0.1

0.1

C413

TP402

R653

0.1

TP403

DAN202K

D583

1SS133

TP564

Q584

DTC114YK

R585

R587

D581

TP562

10k

0.33

E809

47/35

E810

47/25

10k

10k

R586

Q581

DTC124EK

10k

Q582
DTC124EK

C803

C804

2200p

2200p

TP318

TP316

TP304

ZD561

HZS9C1L

ZD562

HZS9C1L

C307

1000p

C407

33/63

100

R419

100k

Q572

C406

R405

100

1000p

TP406

R575

TP301

100k

C304

0.33

R319
100k

C830

1000p

C829

1000p

C405

TP404

1000p

100k

0.33

C404

TP406

PRF18AS4710S2

10k

R304

R404

C306

1000p

Q304
IRFZ44N

C305

1000p

Q401
IRF5305

IRFZ44N

TH371

0.01

Q301

IRF5305

Q404

1000p

0.01

0.1

C371

E805

C411

1000p

C412

1000p

2200/35

E806

C312

2200/35

R371

Q311

1000p

390

TP416

TP417

R323

L301

CHOKE

C834

10-2W

10-2W

0.47

C832

C833

C013

C014

C835

R424

C011

1000p

C012
1000p

TP319

33k

0.01

0.01

0.01

1000p

0.01

C421

1000p

R421

2200p

120k

R422

T803

CHOKE

1.8k

R423

10k

TML301

BLOCK TERMINAL 2P

TP321

TP320

C301

C302

33k

1SS133

R326 R325

C402

C008

1.0u

1.0u

C308

1.0u

1000p

NJM2903M

1.2k

10k

0.47

R301

R401

C401

IC302

TP322

C303

1500p

R302

27-2W

R402

27-2W

C403

1500p

L401

CHOKE

LG105

10k

120k

R321

TP415

C321

2200p

R322

1.8k

R324

D301

C561

100k

R621

C612

2200p

R613

27k-F

TP627

R618

2.7k-F

R609

TP622

18k

TP623

C007

LG107

R610

1000p

IC601

UPC494GS

240k

R614

22k

C611

R612

R611

1200p

10k

TP624

TP625

220-1W

220-1W

R604

R603

220-1W

220-1W

10-1/4

10-1/4

R607

R608

IRFZ44N

Q604

IRFZ44N

Q603

10-1/4

10-1/4

R606

R605

Q601

IRFZ44N

Q602

IRFZ44N

R601

R602

C603

20-1/4

20-1/4

C604

2200p

2200p

R619

R620

TP620

20-1/4

20-1/4

TP621

E6002

E6001

E6003

E6004

1000/25

E6005

1000/25

1000/25

1000/25

1000/25

R615

2.7k-F

TP626

R616

27k-F

240k

E605

R617

47/25

TP565

Q561

R561

DTA124EK

4.7k
R562

0

0.1

E604

E603

22/25

100/10

T801

TRANS, EI EER40

TH801

C809

TP801

0.01

R809

10-2W

C808

D801

E801

2200/35

E802

2200/35

C801

C802

10-2W

FFPF15U20DN

D802

FFPF15U20DP

R810

0.01

TP802

1000p

1000p

LG104

C003

BK2125HS601

BK2125HS601

1000p

Q801

Z801

2SC3421

R801

8.2k

E807

HZS16-1L

ZD672

2.2/50

ZD673

E808

2.2/50
HZS16-1L

8.2k

R802

Z802

Q802

2SA1358

1M

C806

1000p

E813

330/25

R803

1M

330/25

E814

C807

R804

1000p