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SERVICE MANUAL
MONO POWER AMPLIFIER

TO ALPINE Home Page
11 / 06-A T0110600022

MRP-M850


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. 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 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.

Warning
Do not look squarely into the laser light coming from the pickup.
You may loose you sight.

Fuse Caution
Always use a designated fuse. Use of an incorrect fuse may result in a fire.

Caution
Do not allow wiring to be caught in the screw/chassis.
If wiring is caught in the screw/chassis, it may cause a short circuit, resulting in a fire.

Battery Caution
Use the designated battery. Confirm the correct polarity and seat of the battery. An incorrect battery or an improperly connected or seated battery may result in a fire.

High Temperature Caution
Touching the heat sink may cause severe burns.

Designated Parts Caution
Look up the part list and ensure that only designated parts are used to prevent problems or accidents.

Reverse Power Supply Connections or Misconnections Caution
Reverse power supply connections or misconnections may cause ignition problems and smoke may result.

Wiring Caution
Ensure that the wiring is correct when rewiring to prevent problems with ignition/breakdown.

Soldering Caution
Hot solder from solder splash may cause severe burns.

Wear Gloves
Wear gloves to prevent electrical shocks or injury from the end face of the metal.

-2-

MRP-M850

Contents 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
Description of IC Terminal

4 4 5 6 7 8,9 10 to 12 13 14

Exploded View (Cabinet)

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

-3-

MRP-M850

Packing Assembly Parts List
#1 $1 %1 &1 $1

Symbol No.
101 101 101 101 102 103

Part No.
68-08564Z25 68-08564Z26 68-08564Z26 68-09359Z02 68-08564Z27 01E39152S01

Description
MANUAL,OWNER'S-AO MANUAL,OWNER'S-GO MANUAL,OWNER'S-GO MANUAL,OWNER'S-CO O/M,-GO (I,G,S) ASSY,CONNECTOR 4P

Symbol No.
104 105 106 107 108 109

Part No.
15E39155S01 15E39156S01 03E36690S01 47E35196S01 03E36238S01 03E39167S01

Description
COVER,TERMINAL-L COVER,TERMINAL-R WRENCH,2.5X2.9 WRENCH,3X3.5 SCR,M4X20 SCR,M3X12(P)(BLK)

NOTE : #1 : For North American Model Only, $1 : For European Model Only, %1 : For General Model Only, &1 : For Chinese Model Only, Others : Common.

Packing Method View
101 102

107 106

109 X4 108 X4
104

103

105

TO CONTENTS -4-

MRP-M850

Specifications
Power Output (20Hz, 4ohm, 1.0% T.H.D. (14.4V)) (100Hz, 4ohm, 1.0% T.H.D. (14.4V)) (20Hz, 2ohm, 1.0% T.H.D. (14.4V)) (100Hz, 2ohm, 1.0% T.H.D. (14.4V)) T.H.D. Residual Noise S/N Ratio Frequency Response (100Hz, 10W, 4ohm (14.4V), Gain position : Center) (Ref.Output 500W/4ohm, Input Short, Gain position : Center) (Ref.Output 500W/4ohm, Input Short, Gain position : Center) (Ref.Output 1W/4ohm, Ref.Frequency : 100Hz 0dB) 500W 500W 800W 800W 1.0% 40mV 94dB 20Hz : -0.5ą2dB 200Hz : -3.0+4dB,-2dB Output Offset Voltage Remote On Voltage Current Drain (No Signal) (1W Output) (No Signal) (10% T.H.D., 2ohm Load) (Remote Current Drain) (Back Up Current Drain) Input Sensitivity (Ref.Output 500W/4ohm, 100Hz, Speaker Input) (Ref.Output 500W/4ohm, 100Hz, RCA Input) ą150mV 6.5ą1V 2.7A 130A 0.26ą0.1mA 1.2mA Gain VR MIN : 8.0Vą3dB Gain VR MAX : 0.2Vą3dB Gain VR MIN : 4.0Vą3dB Input Impedance (Reference) RCA Input : 20k ohmą10% Speaker Input : 39.6k ohmą10% Fuse Requirement Power Source Dimensions (W x H x D) Weight 25A(Peak) x 3 (For Battery Line) DC14.4V (11 to 16V) 397 x 60 x 241.4mm 4.65kg

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

TO CONTENTS -5-

Block Diagram
PWM OUTPUT SWITCHING FET

MRP-M850

OUTPUT(+) INPUT ISOLATOR L Sub Sonic FILTER GAIN AMP 45Hz EQUALIZER LPF FILTER LC Filter PWM DRIVER BLOCK

0dB R

RCA IN 2P L R POWER +38V/-38V Analog +15V/-15V DC-DC TRANS DC-DC SWITCHING FET RECTIFICATION u-COM DC-DC SWITCHING FET DC-DC FET GATE Driver DC-DC FET GATE Driver

LC Filter OUTPUT(-)

SP IN 4P

LED

DC-DC VONVERTION CONTROLLER

GND u-COM RESET BATTERY VOLTAGE DETECTOR u-COM +5V REGULATOR CHASS +B CHOKE REMOTE

TO CONTENTS -6-

Parts Layout on P.W.Boards and Wiring Diagram
1
G Q305 S

MRP-M850

MAIN P.W.Board (Component Side View)
R226 R227 C354 C356 C355 C343 C337 C335 C336 C334 C222 C227 C325 C342 C322 C323 C326 R225 R224 R223 R222 E205 R238 C221 R236 R230 R229 E208 C226 1 C145
E

Q207
2

E207 IC203

R235 C219 R233 R234 R231 R232

IC205

E310

E312

E Q209 R228 B C218

R252 R251

R249 R250

C217

R221 R337 R338 R339 C808 C361 R343
4
E

E204
1 3

E206

IC204

C223

Q208

B

E209

IC206 TML301 7 C230

VOL103

E230 D308 R328 R329 R330 D307 R325 R326 R327 R830 Q810 C811 R829 R831 Q809 R832 C141 R153 R150 C138 R151 R152 D806 D805 Q811 E201

B

E

B

E

B

E

C308 Q314 C307

Q301

IC306

D305

C132

C305 R309

E301 D301 R303 C137

E305

D303

2

R149

IC108

R154 C142

C140

R239 R240

R344

VOL102

C303 R305

R146 R147 C133

C311

C136

C139

R307

R311
B

D808 IC303

R318 C314 C313 R317

C320 E216 R347

E

R313

R301 C301

C347

C317

C134

IC107

R314

C135

R304 D302

C349

VOL101

Q315

Q302

D306

C312

D304

E109

E306

C309 C306 R308 R306 C310

R355 R354

3 1

IC106

R818 R815

R219

JK101

2

1

C120 R133 R135 IC104

C119 R132
E

E401

E203 R155 Q101

C419

4

3

R134 E105

R825 R422 C413 R417 C414 R424 C416 IC408 R425 R421 C417 C410 C408 R413 R414 R419 R420 C412 C409

5 4 1 3

D804

C411

E403

E402

2

3

R107

C104 C102 C101 C103

R156
1 5

C202 C203

2

4

RA403

R123 R122 R125 C111

C112 R126 R121 R124

D309

CB101

E405

1

3

C421

11 C404 C422 CL401

1

7

D310

R336 R335 R334

C113

IC409

IC102

IC101

R118

R117

R212 R213

3 R346 C360 C807 R345

C201 C231 E226 E315 R259 E227 R260
GND

IC407

R119

R333 R332 R331

4 5 4 5

R450

R342 R341 R340

R120

3 1 3 1

IC406

RA404

C110 R112 C106 R116 R115 C105 R111

C109 R110 C108 R114 R113 C107 R109 R401 C402 IC401
3 4 1

R439 R431 R438 R437 R433 R435 R812 R807 R808 ZD801

2 1

R426

C329

E224

ZD205

ZD206

Q803

Q804

D401

B

E

B

R806

R811

E

S

G Q310

C330 TH802

S

G Q309

S

G Q312

C333

S

G Q311

Q218

B

Q219

R351

E

Q303

S

G Q214

S

G Q215

S

G Q216

R247 R248

B

E

B

LED P.W.Board (Component Side View)
C930 LD901

To CH201
2
BLK

E

D206

R245 R246

4

ZD802

C341 C345

C332

Z202

IC405

C407

C401 C143 C236 C423

C225

R257

Q805 B

R258

S

G Q217

1
RED

LED P.W.Board (Foil Side View)
RED

CON001 ASSY, CONNECTOR

BLK
2

GND

B+
1

5
TO CONTENTS

-7-

Orange Color Pattern:Component Side Pattern Blue Color Pattern:Foil Side Pattern

A

B

C

D

E

F

C210

4

5

E

R805 R809 R810

C339

C338

Z203

R352

C229

3

1

D802

C228

5

E225

IC404

C331

E311

C328

C406

E313

C340 C344

ZD301

C405

E104

E103

E102

E101

D801

E314

CH201

R253 R254

R256 R255

2

G

TML302

E404

T204

14

8

REMOTE

C115 R128 C116

RA401 RA402

IC103

C420

IC403

T202

L201

R106 R105 R101

Q404 E

R130R129 C114 C117 R127

Q102

Q402 E

R415 R416 R423 C415 R418

10

R427 R411 R410 R412 R409 R449 R408 R407 R406

IC207

IC208

Q403 E

E106

Q401 E

R348
3

1

3

1

R447 R443 R445 R441

E222

E215

C234

C235

B

B

BATT

R102 R104 R103

C348

R108

C122

B

B

B

TH202

R442 R440 R444 R446

E228

E229

C350

T302

ZD204 R220 C215

C418

E223

E214

ZD203

R434 R432

D204

C372

3

JK101

C216

Z201

C121

C118

D203

ZD803 R429 R428 R430 R436

E220

HL202
5

1

R217 R218 C214 R216 R215 R214

R350

Q201 B

R201 C211

C126

R131

2

IC202

E

R828 C804 R816

F003

1

3

R204

C123 C124 R136 R137 C125

R203 R202

E

D201 ZD201 D202

B

E803

C131 IC105

E202

IC201

C810

3

R819

B

IC801

D803

C353

5

4

R803 C801 Z803 Q801 R801 E Z801 B Z802 Q802 R802 E C802 Z804 R804

R817 R814 C803 R813

C351

C238 C232 6 C233 C237

Q202

C213

E801

E213

C205 C204

T201

E

T203

E304

E303

Q304

4 5

B

C809

C352

R138 C128 R143

R139 R141 R140 C130 R144 R145 C129 R148 R142

R824 Q808 R822 R823 E C806
B

E

Q806

C127

B

R316 R312 R826 R827 R820 R821 R353 B IC802 Q807 E802 E C805

E

IC304

C371

E218 E212

E107

C319 E309

R349

F002

E302

B

R319 C315 C316 R320

IC307

E108

TH201

C304 R310

C144

D807

C321

T301

E317 R363 R365

R302 C302

HL201

IC301

E307

IC305

E308

E217

E211

R364 E316 R362

R321 R322 R324 R323

F001

R315

C318

E210

C357

B

C220

D205

R242 R244

G Q306

S

G Q307

S

C327

G Q308

S

G Q212

S

G Q213

S

G Q210

R241 R243

TH801 C324

S

G Q211

C224
S

JK101 CONN, RCA 2P

IC405 MC74HC1GU04

C407 IC404 MC74VHC74DTR2G C423 N.U. C101 1000p 1000p 1000p 1000p C102 IC401 C103 C104 C401 6800p C405 0.1 BD5242G C406 100p D401 RLS-73 C402 0.01 R401 10k RA404 10k R104 R103 R102 R101 R106 11k 11k 330 11k 330 CL401 7.70MHz C404 R108 22k R107 22k 0.1 E103 3.3/50V E104 E102 3.3/50V RA403 10k 3.3/50V RA401 10k 3.3/50V R406 R407 IC403 47k 10k RA402 10k 47k 47k 47k 10k 10k R408 R409 R410 R411 R412 TMP86M47AUG R111 R112 R110 1k 1k C106 1000p R116 220k C105 1000p R115 220k IC102 NJM4560M R118 0 R120 0 C408 100p N.U. 100p R417 0.1 R419 100 100 R413 C409 IC407 KIC7SH08FU R117 0 1k C108 1000p R114 220k C107 1000p R113 220k IC101 NJM4560M 1k C422 C412 0.1 0.01 R421 10k C114 R415 10k R127 C117 R825 47p C115 15k 47p R420 0 C413 0.1 IC406 KIC7SH08FU R122 R121 15k 15k R123 15k C109 C110 N.U. R125 15k C111 47p R126 C112 15k 47p N.U. C410 C411 N.U. R414 10k C113 N.U. IC103 NJM4560M R422 100k 0.1 R450 R449 C414 100 100 R423 47k C415 0.1 R418 1k R424 C416 100k 0.1 R425 470 47p 10k R130 R416 N.U. 5.6k C118 0.1 R129 5.6k 0.1 R131 N.U. C119 R132 E105 180k R133 E106 1/50 IC104 NJM4560M 0.1 180k R134 75k 1/50

0.1

CB101 CONN, WAFER 4P R105 11k 15k E101 R109 R119 0 R124 15k R128 C116 47p

-8C417 R426 0.1 10k R442 2.2k 1/8W R443 18k 1/8W C421 E405 C420 E404 560p 22/16 560p

C120

R135 IC408 LM20BIM7 R427 100 R439 47 1/8W R440 2.2k 1/8W R438 820 1/8W R432 2.2k R441 2.2k 1/8W 1/8W R433 18k 1/8W C419 E403 560p 0.1/50 22/16 C418 560p C133 R429 47 1/8W R430 2.2k 1/8W R431 2.2k 1/8W R428 820 C143 N.U. E109 1/50 C144 E108 1/50 N.U. IC107 NJM4560M C132 0.1/50V Q102 FMC2A R156 10k Q101 KTC2874-X R155 3.3k R143 1.5k C128 N.U. C134 N.U. 75k C121 0.1 1.5k 910 VOL101 50k C123 33p R136 R137 R139 C124 N.U. C125 10p 27k 150k R141 5.1k C126 C127 R138 0.022 N.U. E107 2.2/50 R140 5.1k VOL102 5k R142 100 R144 C130 N.U. C129 10p 5.1k IC106 NJM4560M C131 N.U. R145 27k C135 22/16 E401 IC409 BA2901FV 22/16 N.U. C122 N.U.

IC105 NJM4560M

TO P. W. BOARD TO PARTS LIST

0.33/50

C136

R434

150k 1/8W

0.22/50

R147 3.6k

C137

R445 R447 2.2k 1/8W R446 2.2k Q404 DTC144EKA Q403 DTC144EKA

R148

R435

150k 1/8W

150k 1/8W

R444 1/8W Q402 DTC144EKA

R150

150k 1/8W

R146 R149 3.6k 3.6k E402 4.7/50 3.6k 5.6k

R437 2.2k 1/8W

R436 2.2k 1/8W

VOL103 15k

R151 R152 Q401 15k R153 N.U. C138 C139

15k 47p N.U. IC108 NJM4560M C141 C142 47p R154 15k 47p C140 47p DTC144EKA

C145 N.U.

TO CONTENTS

R814

1k R318 R301 1k E301 4.7/50 R303 6.2k R305 47k 1/4W R307 R313 1k 1/4W 3300p 1k 10k 1/4W

N.U.

N.U. Q307 IRF3415Pb Q308 IRF3415Pb

0.1

1200p

N.U.

C318

1000p

C334 N.U.

C336

0.01

10k

C803 1200p IC801 NJM2903M

C322

1SS355

C307

Q301 KTA1266-X R311 1k 1/8W

R337 C320 IC306 IR2010S IC303 MC14069UBD R321 0 R322 0 0.33 D305 MURS120 MURS120 N.U. R338 R339

6.8 1/4W 6.8 1/4W 6.8 1/4W

Q305 IRF3415Pb 47/100 Q306 IRF3415Pb C335 N.U.

C325

47/100

N.U.

E312

N.U.

C342

C311

D303

E801

N.U.

0.33

0.1

3300p

C308

C301

0.15

100p

C326

C327

C323

E310

R315 10k 1/4W

R362 N.U.

C324

1k 1/8W

C337 N.U.

C343

E316 N.U.

Q314 N.U.

E305 D808

D301 DA204K

C305

R328 R329 R330 D308

30 1/4W 30 1/4W 30 1/4W SK2BS

C804 R816 R344 0.01 10k 1200p 120k 1/8W 120k 1/8W ZD803 HZS5BLL R817 R818

47p

R309

R364

C303

E803

N.U.

4.7/50 TML301 CONN, TERMINAL 2P N.U.

IC301 NJM2137V

0.1

E307 N.U.

10k 1/4W

R316

0.1

IC305 MC14081BD D309 R331 R332 R333 SK2BS 30 1/4W 30 1/4W N.U. N.U. 30 1/4W R345 C339 47/100 47/100 N.U. 0.33/100V N.U. Q310 IRF3415Pb C341 0.1 N.U. 0.01 0.47 0.47 0.47 0.47

R365 N.U.

Q315 N.U.

C317

Q302 KTA1266-X

1SS355

100p

D803 R819 47k DAP202K

1k 1/8W

C302

C309 3300p

0.15

C306

R310

E306 N.U.

E317 N.U.

47p

R363 N.U. R312

C304

C312

0.1

D302 DA204K

C345

C361 C808

C360

C330

E311

R314

C329

0.33

0.47

N.U.

0.01

C321 R319 1k R320 1k C315

0.33

1SS355

1SS355

D805

D806

C809

C352

C354

C331

C344

R347

47/16

E802

C806 N.U.

R824 47k R831 0 R832 R829 N.U. 10k Q810 2SC2412K R830 10k Q811 DTC124EKA

1200p Q303 KTD600K 10k 1/4W 10k 1/4W

30 1/4W SK2BS

E309 N.U. Q304 2SB1198K

D310

N.U.

N.U.

R346 0.01

C805 0.1

R351

R352

R348

470 /16

R827

5.1k

1.5k

2k

HZK12AL

47k

1uF

1uF

R350

R354

27-3W

R355

10-3W

R353

10-3W

R349

22k

27-3W

Q807 DTA114EKA

0

C316

R335 R336

30 1/4W

C349

IC802 KIC7S00FU

C323

R820

R821

1200p

4.7/50

4.7/50

Q809 DTA124EKA

1000p

N.U.

E303

E304

C319

R334

30 1/4W

C338

C340

C371

DTC144EKA

C350

ZD301

C351

0.33

0.47

0.01

0.47/50

E314

C811

1500pF

E315

C348

Q806 DTA114EKA 0.1 R822 0 R823 0

C353

C810

C372

N.U.

T302 15uH

R826

47k

R218 10k R214 1000p

R217 4.7k R219 30kF 1/8W RLS-73 4.7k D204 D203 GN1D

Z201 BK1608HM102-T

IC202 NJM7805SP TH801 Z803 BK1608HM102-T 470/10 470 R801 10k Z801 BK1608HM102-T

2.4k 1/4W R213

LD901

2.4k 1/4W 0.022

C930

R212

39k 1/8W

0.01

Q202 KTB1241 R203

UB1106W-TR

IC201 BD5243G R215

C216

470/25

C213

CON001 ASSY, CONNECTOR 2P

470/25

E203

47k

Q801 2SC2412K C801

D804 DAN202K HZK9C1L ZD801 10k 10k

R812

10k

HZK15-2L

10k 1/8W

HZS5BLL

10k 1/4W

R803

390

56k 1/8W

R204

0.01

0.01

E202

0.1

E201

C214

C215

ZD203

D202

0.01

Z804 BK1608HM102-T

N.U.

30k

GN1D

R201

30k 1/4W

HZK6A1L

C211

ZD204

R216

R220

CH201 CONN, WTB 02P

R805

TH802

470 R802

Z802 BK1608HM102-T 10k D804 DAN202K Q802 2SC2412K

22k

D201

R202

ZD201

R807

R808

Q201 2SC2412K

Q805 DTC144EKA D802 DAN202K

47k 1/4W

R221

R804

C802

390

0.1

ZD802 HZK9C1L

R810 R811 22k Q804 2SC2412K

10u

470/25

1/4W

1/4W

1/4W

1/4W

R222 2.2k

R223 2.2k

R225 2.2k

R224 2.2k

L201

E230

C217

0.1

R227

FUSE, 25A

FUSE, 25A

FUSE, 25A HL201 HOLDER, FUSE

10k 10k

33 1/4W

R249

IC205 MC33152DR2

10

1/4W

R250 33 1/4W

Q210 IRF3205-X R241 10 1/4W

R243

C226

Q211 IRF3205-X

2200p

F003

F002

F001

R226

Q207 2SC2412K

E204

22/16

T203 TRANS, POWER

D205 E210 1800/25 KCF25A20 Z202 BK2125HS601-T 1800/50 R257 7.5k 1/4W 1800/50

47k

REMOTE

T201 COIL, CHOKE 14.4 GND HL202 HOLDER, FUSE 27k 1/8W 1/8W E206 22/16

Q218 KTD600K

IC207 NJM78L05UA

E211 R252 33 1/4W C230 R251 33 1/4W C227 0.01 R242 C221 E207 0.1 N.U. E208 C222 N.U. 0.1 10 1/4W Q212 IRF3205-X C224 0.47 R244 Q213 IRF3205-X 1800/25 E212 0.47 1800/25 TH201 22k TH202 1800/50 2200p

BATT

D801 RLS-73

R809

Q208 KTB985

R806

22k

IC203 NJM7809DL1A

47k

Q803 2SC2412K

100/25

R259

2200p

750k

C238

HZK16L

ZD205

E216

E217

C234

10 1/4W

1800/50

E218

TML302 CONN, WB 3P

E224

R231

R233 1.6k

27k 1/8W

2k 1/8W

R260

0.01uF

0.01uF

0.01uF

C237

100pF

E220

1200p 18k

R232

R234

IC206 MC33152DR2

C204

C202

C203

C205

R236

120k

10 1/4W

R238

10 1/4W

D206 E214 1800/25 E215 C231 0.47 1800/25 C25P20FR

Z203 BK2125HS601-T

33 1/4W

33 1/4W

R258

C220

R239 R240

R253

2200p

22k

R247 10 1/4W Q216 IRF3205-X C225 0.47

C218

R230

820

C201

100pF

C210

N.U.

R228

2200p

C229

Q217 IRF3205-X

2.2k

R256

R229

R248 10 1/4W

Q219 KTB631K

4.7k

0.1

IC208 NJM79L05UA

E229

330/10

7.5k 1/4W

E213

1800/25

E227

C235

R245

C232

E222

C233

DTA124EKA

33 1/4W R254 33 1/4W

T204 TRANS, POWER

C236

750k

E205

C219

R235

E223

Q209

E209

N.U.

Q214 IRF3205-X

Q215 IRF3205-X R246

1800/50

0.47

1k

1k

22k

100/16

C228

0.01

0.47

T202 COIL, CHOKE 14.4

100/25

E225

1/50

0.1

1800/50

ZD206

0.1

0.47

C223

HZK16L

IC204 uPC494GS

E226

E228

1/50

100/16

0.1

C355

C357

0.01

C356

Q309 IRF3415Pb

N.U.

0.1

Q808

1uF

Q311 IRF3415Pb

1500pF

C347

0.01

1k

4.7/50

6.2k

47k 1/4W

1k 1/4W

R340 R341 R342

6.8

1/4W

C332

C807

0

E313

R302

R304

R306

R308

10k 1/4W

E302

C310

C333

1k 1/8W

IC307 IR2010S

3300p

R324

D304

0

MURS120

D306 MURS120

D807

IC304 MC14069UBD

R323

6.8 1/4W 6.8 1/4W

Q312 IRF3415Pb

T301 15uH

-9-

TO P. W. BOARD

TO PARTS LIST

TO CONTENTS

R828

56k

1200p C314

E308

N.U.

D307 R325 R326 R327

SK2BS 30 1/4W 30 1/4W 30 1/4W

R343

R813

R815

R317

C313

2.2k 1/8W

2.2k 1/8W

MRP-M850

Terminal Voltage of IC/TR
IC101 IC102 IC103 IC104 IC105 IC106 IC107 IC108 1 13.3mV 13.1mV 3.9mV 10.9mV 3mV 58.9mV 59.5mV 36.3mV 1 5.1V 2 13.2mV 13.1mV 8.8mV 10.9mV 3.1mV 58.9mV 59.5mV 36.3mV 2 7.98V 3 12.6mV 12.5mV 8.5mV 10.3mV 2.8mV 58.8mV 59.5mV 36.1mV 3 0V 4 -15.08V -15.1V -15.1V -15.13V -15.13V -15.13V -15.14V -15.14V 4 0V 5 12.7mV 12.6mV 8.3mV 10.4mV 11.1mV 9.3mV 61.2mV 2.7mV 5 3.55V 6 13.6mV 13.4mV 8.9mV 10.9mV 11.5mV 9.6mv 61.6mV 2.9mV 7 13.6mv 13.4mV 3.8mV 11mV 58.6mV 9.6mv 61.3mV -31.7mv 8 15.06V 15.06V 15.05V 15.05V 15.06V 15.06V 15.07V 15.07V

IC201

IC202 IC203

1 13.56V 14.34V 1 2.62V 9 3.54V 1 29mV 28.3mV 1 4.95V 0V 1 -2.11V

2 0V 0V 2 2.65V 10 3.53V 2 3.52V 3.53V

3 5.01V 9.03V 3 0.01V 11 9.02V 3 2.9mV 2.9mV 4 0V 12 9.02V 4 3.53V 3.53V 5 1.68V 13 5.03V 5 4.07V 4.06V 6 3.76V 14 5.03V 6 9.03V 9.03V 7 0V 15 5.03V 7 4.07V 4.06V 8 9.02V 16 0V 8 27.8mV 27.8mV

IC204

IC205 IC206

IC207 IC208

2 3 0V 14.93V -15.01V -4.95V 2 1.7mV 3 -0.6mV 4 -4.96V 5 2.8mV 6 0.5mV 7 -2.08V 8 4.95V

IC301

IC303

1 2 3 4 5 6 7 -31.36V -32.01V -32.01V -31.37V -31.37V -32.15V -37.71V 8 9 10 11 12 13 14 -25.86V 37.71V -32.43V -31.55V -31.55V -32.14V -25.84V 1 2 3 4 5 6 7 -31.32V -31.97V -31.96V -31.3V -31.3V -32.13V -37.71V 8 9 10 11 12 13 14 -25.84V -37.72V -32.43V -31.56V -31.56V -32.14V -25.83V 1 2 3 4 5 6 7 -32.44V -32.33V -34.11V -32.66V -31.55V -31.56V -31.56V 8 9 10 11 12 13 14 -37.72V -31.56V -32.68V -34.08V -32.32V -32.43V -25.83V 1 -33.5V 9 0V 2 3 4 -37.72V -25.83V 0V 10 11 12 0V -25.83V -34.09V 5 0V 13 -37.7V 6 0V 14 -32.7V 7 11V 15 -37.7V 8 2.75V 16 0V
TO CONTENTS

IC304

IC305

IC306

TO SCHEMATIC - 10 -

MRP-M850

IC307

1 -33.5V 9 0V 1 5.1V 1 0V 10 5.1V 19 4.97V 28 3.57V 37 0V 1 5.1V 8 5.1V 1 0V 5.1V 5.1V 0V 1 0.07V 8 4.76V 1 4.77V 1 5.1V E 0.04V 1 14.98V E 0V 14.39V 0V 14.39V 5.03V

2 3 4 -37.72V -25.83V 0V 10 11 12 0V -25.83V -34.09V 2 5.1V 2 2.12V 11 0.02V 20 5.03V 29 0V 38 0V 2 0V 9 5.1V 2 5.1V 5.1V 0V 0V 2 0.07V 9 2.15V 2 0.34V 2 5.1V C 0V 2 -1.64V C 0.03V 14.29V 0.73V 14.38V 0V 3 0V 3 2.26V 12 0V 21 0V 30 1.4V 39 0V 3 0V 10 0V 3 0V 0V 0V 1.42V 3 5.1V 10 4.76V 3 0.34V 3 0V B -1.89V 3 15.05V B 0.66V 13.71V 0.15V 13.66V 4.87V 4 0V 4 0V 4 0V 13 0V 22 0V 31 5.1V 40 0V 4 5.1V 11 0V 4 0V 5.1V 0V 5.1V 4 4.78V 11 2.38V 4 0.34V 4 0V

5 0V 13 -37.7V 5 2.65V 5 5.1V 14 0V 23 5.1V 32 5.1V 41 0V 5 5.1V 12 0V 5 5.1V 5.1V 5.1V 0V 5 2.38V 12 0V 5 0.34V 5 4.95V

6 0V 14 -32.7V

7 11V 15 -37.7V

8 2.75V 16 0V

IC401

IC403

6 5.1V 15 0V 24 5.1V 33 5.1V 42 0V 6 0V 13 0V

7 5.1V 16 0V 25 2.05V 34 5.1V 43 0V 7 0V 14 5.1V

8 5.1V 17 0V 26 1.93V 35 5.1V 44 0V

9 5.1V 18 0V 27 0V 36 0V

IC404

IC405 IC406 IC407 IC408

IC409

6 4.78V 13 0V 6 0.34V

7 2.14V 14 0V 7 4.93V 8 0.34V

IC801

IC802

Q101

Q102

5 0V D 14.39V 14.39V 14.39V 14.39V 14.39V 14.39V 14.39V S 0V 0V 0V 0V 0V 0V 0V G 4.05V 4.05V 4.05V 4.05V 4.05V 4.05V 4.05V
TO CONTENTS

Q201 Q202 Q207 Q208 Q209

Q210 Q211 Q212 Q213 Q214 Q215 Q216

TO SCHEMATIC - 11 -

MRP-M850

Q217 Q305 Q306 Q307 Q308 Q309 Q310 Q311 Q312

D 14.39V 0V 37.83V 0V 37.83V 0V 37.83V 0V 37.83V

S 0V -37.73V 0V -37.74V 0V -37.73V 0V -37.74V 0V

G 4.05V -34.16V 2.18V -34.16V 2.18V -34.16V 2.18V -34.16V 2.18V

Q218 Q219 Q301 Q302 Q303 Q304 Q401 Q402 Q403 Q404 Q801 Q802 Q803 Q804 Q805 Q806 Q807 Q808 Q809 Q810 Q811

E C B 15.04V 37.79V 15.67V -15.11V -37.71V -15.72V -1.49V -31.3V -2.09V -1.49V -31.3V -2.1V -25.8V -2V -25.27V 4.97V -37.68V 4.92V 0V 5.1V 0.07V 0V 5.1V 0.07V 0V 5.1V 0.07V 0V 5.1V 0.07V 0V 0.02V 0.77V 0V 0.02V 0.77V 0V 0.01V 0.07V -37.71V -37.7V -37.02V 0V 5.1V 0V 4.95V 4.88V 0.01V 4.95V 4.94V 0.03V 0V 3.5V 0V 4.95V -4.94V 4.93V 0V 4.93V 0V -4.96V 1.88V -4.94V

[Measuring Conditions] 1.Power Supply Voltage : DC14.4V 2.Measuring Meter : Digital Multi Meter 3.Measuring Point Reference : Between GND 3.Measuring Condition : No signal input

TO SCHEMATIC - 12 -

TO CONTENTS

MRP-M850

Description of IC Terminal
TMP86M47AUG : IC403
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Symbol VSS XIN XOUT TEST VDD I2C_SDA(PULL-UP) I2C_SCL(PULL-UP) RESET BAT_DET I_LIMIT FAN1 FAN2(PULL-DOWN) NC(PULL-DOWN) CMD_DOUT (PULL-DOWN) CMD_DIN(PULL-DOWN) CMD_CLK (PULL-DOWN) NC(PULL-DOWN) POWER_P1 POWER_P2 POWER_P3 (PULL-DOWN) FREQ1(PULL-DOWN) FREQ2(PULL-DOWN) VOL_DET 6dB_DOWN OUT_THRM AD_KEY AD_FREQ1 AD_VOLT AD_FREQ2 (PULL-DOWN) AD_THRM AD_THRM_DET LED MUTE VAREF AVDD AVSS VOL_CE1(PULL-DOWN) VOL_CE2(PULL-DOWN) VOL_CL(PULL-DOWN) VOL_DI(PULL-DOWN) LCD_CE(PULL-DOWN) LCD_DI(PULL-DOWN) LCD_CLK(PULL-DOWN) LCD_INH(PULL-DOWN) Pull-down connect terminal. I I I O O Voltage signal input terminal. Pull-down connect terminal. Temperature signal input terminal. Temperature detection input terminal. LED(Back Light) ON output terminal. MUTE output terminal. Analog reference power supply terminal for A/D converter. Power supply terminal for A/D converter. Analog reference GND terminal for A/D converter. I I I VOLT-DET terminal. (Secondary voltage, DC-OFFSET) -6dB temperature detection input terminal. Output Thermal detect terminal. Capacitor connect terminal. Pull-down connect terminal. O O Power supply circuit control signal output terminal -1. Power supply circuit control signal output terminal -2. Pull-down connect terminal. I I I O RESET terminal. BAT-DET terminal. I_LIMIT input terminal. FAN POWER supply control. (9V) I/O I I O I TEST terminal. Power supply terminal. (4.5 to 5.5V) Pull-up connect terminal. GND connect terminal. Crystal OSC connect terminal. Terminal Description

TO SCHEMATIC - 13 -

TO CONTENTS

Exploded View (Cabinet)

15 X3

MRP-M850

23 X3

23 X3 a 15 X3

4

21

19 X7 22 X2 23 X2

b c d 7 21 X4 22 X2 7 20 X2 7 j k i
JK101

22 X2 16
F001

F003 F002 TML302 HL202

20 16

10

h
HL201 TML301

g

n

20

9

7

17 X4 18 X2 23 X3 12 g

a

p l m 22 X2

CB101

n

14 13

h

6

X7

VOL101

r

VOL103 VOL102

j

3

e k e p l 2 m r 1 c 16 20 X2 9 1 16

d

f

10

23 X3 b 11

8 5

i

f

17

- 14 -

TO PARTS LIST

TO CONTENTS