Alpine MRP-M350 User manual

MRP-M350
SERVICE MANUAL
MONO POWER AMPLIFIER
MONO POWER AMPLIFIER MRP-M350
2 / 03-A
68E35049S01
TO ALPINE Home
Page

<Cautions for Safe Repair Work>
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.
*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.
Do not look squarely into the laser light Fuse Caution
coming from the pickup. Always use a designated fuse.
You may loose you sight. Use of an incorrect fuse may result in a fire.
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.
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
r
Wiring Caution
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
s
Hot solder from solder splash may cause severe Wear gloves to prevent electrical shocks or injury
burns. from the end face of the metal.
If you ignore this symbol and handle the product incorrectly or unsafely,
injury or only material damage may result.
If you ignore this symbol and handle the product incorrectly or unsafely,
serious injury or death may result.
Warning
Caution
Warning
Caution

Contents
Packing Assembly Parts List
Packing Method View
Specifications
Block Diagram
Parts Layout on P.W.Boards and Wiring
Schematic Diagram
Terminal Voltage of IC/ TR
Description of IC Terminal
Exploded View (Cabinet)
NOTE : Due to continuing product improvement, specifications and designs are subject to
change without notice.
Cabinet Assembly Parts List
Electrical Parts List

103
102
101
105
104
107
106
R
Packing Assembly Parts List
PartNo. PartNo.
101 03E34961S01 SCR,M4X20 TPG1(BLK) 106 01E11136S01 ASS'Y KIT SP-IN WIRE
102 03E34955S01 SCR,M3X10(B)MCH(BLK) #1 107 68P02294K63 OWNER'S MANUAL
103 15E34956S01 COVER,RCA $1 107-1 68P02294K74 OWNER'S MANUAL(GE)
104 75E27927S01 HOUSING RUBBER-D $1 107-2 68P02294K75 OWNER'S MANUAL(I,G,S)
105 75E22439S01 HOUSING RUBBER-B
NOTE : #1 : For North American Model Only,
$
1 : For General Foreign Model Only, Others : Common.
Packing Method View
Symbol Description
No.
Symbol Description
No.
TO CONTENTS

Specifications
T.H.D. (100Hz, 14.4V) ............................................................................................ 100W/ch, 4ohm-1channel : 1.0%
200W/ch, 2ohm-1channel : 1.0%
Power Output (1.0% T.H.D., 14.4V, 20Hz to 100Hz) .......................................................... 4ohm-1channel : 160W
2ohm-1channel : 320W
S/N Ratio (Ref. Output 175W/4ohm, Input shorted) ............................................................................................ 94dB
Input Sensitivity (175W/4ohm Output) ......................................................... SP-INPUT : GAIN-VR (MIN) : 8.0V±3dB
RCA-INPUT : GAIN-VR (MAX) : 0.18V±3dB
RCA-INPUT : GAIN-VR (MIN) : 4.0V±3dB
Input Impedance ............................................................................................................ SP-INPUT : 35.9k ohm±10%
RCA-INPUT : 18.3k ohm±10%
Frequency Response (0dB, Ref. 100Hz) ........................................................................................... 20Hz : -1.0±1dB
205Hz : -3.0±2.5dB
Current Drain ..................................................................................................................................... No Signal : 1.5A
2ohm-1channel, 10% T.H.D. : 62A
Residual Noise (Input Shorted, 4ohm-1channel) ............................................................................................... 30mV
Remote on Voltage (1W Output) ............................................................................................................ 6.5 +1, -1.5V
Remote Current Drain ............................................................................................................................. 0.27± 0.1mA
Back Up Current Drain ...................................................................................................................................... 1.5mA
Fuse Requirement ............................................................................................................... 20A x2 (For Battery Line)
Power Source ............................................................................................................................. DC14.4V (11 to 16V)
Dimensions (W x H x D) ................................................................................................................. 233 x 60 x 242mm
Weight ............................................................................................................................................................... 2.42kg
NOTE : Due to Continuing product improvement, specifications and designs are subject to change without notice.
TO CONTENTS

Block Diagram
LINE
CHOKE
MUTE
DRIVER
u-COM
+5V
LED
PWM IC
PWM
FEEDBAC
PROTECTION
DRIVE
MAIN POWER
FET
RECTIFIER
AND
RECULATOR
+15V/-15V
REGULATOR
Thermal
senser
INPUT
ISO. GAIN
VOLUME REVERSE BUFFER PWM OUTPUT
DRIVE
SENSOR
SENSOR
FET OUTPUT
STAGE
u-COM
Protection senser
L.P.F
JK101
(INPUT)
INPUT
ISO.
SENSOR
DC OFFSET
Over Current Protect
over temperature Protect
JK101
(INPUT) BASS
EQ CH 1(+)
CH 1
CB101
(SPEAKER LEVEL INPUT) CH 1(-)
CH 1
CH 2
TML301
(SPEAKER OUTPUT)
DC OFFSET
over load
Thermal(trans)
Thermal(Power TR)
CH 2
+15V -15V
GND
TML601
(POWER SUPPLY)
BATTERY
REMOTE Power trans
GND
TO CONTENTS

R146 27k
R142
1.5k
R161 5.1k
C010 N.U.
R183 15k
C181 47p
VR103 20kE
VR103 20kE
IC104 NJM4560M
NJM4560M
IC105
TP134
R134 100k
C132
1000p
R152
22k
C131
1000p
C808 N.U.
C101 47p
C151 0.1 (MMTS)
R103 15kF
R109 5.6k
N.U. R153
C811 N.U.
IC101 NJM4560M
IC102 NJM4560M
R133 100k
TP233
TP235 TP236
TP201
TP202 TP203
R203 15kF
TP234
C231 1000p
R233 100k
C232 1000p
C201 47p
C141 33p
C810 N.U.
R209
5.6k
E 815
1/50
E816 1/50
E151
0.47/50 R163
100
TP141
R145 220k
C809
N.U.
R234 100k
IC200 NJM4560M NJM4560MIC100
TP135 TP136
TP102 TP103
TP101
R132
1k
TP132
TP133
R135
0
C103
N.U. C153 N.U.
C152
0.1
C102
47p
TP137
TP140
R235
0
0
R136
R131
1K
R231
1K
R102
15kF
R101
15kF
R104
15kF
TP231 TP232
R232
1k
R236
0
C203
N.U.
C202
47p
15kF
R202
15kF
R204
R201
15kF
R151 56k
R166
150k
0.022 C161 E161
2.2/50
R162 5.1k VR102 5kE
TP164
TP165
C162 10p
IC103
NJM4560M
E817 1/50
R173
5.6k
C173
0.33
R174 5.6k
R164
5.1k
C163 N.U.
C164
N.U.
C812
N.U.
C814
N.U.
C174
0.056
C813
N.U. VR103
20kE
VR103
20kE
R186
N.U.
R175
27k
R195
5.6k TP171
E818
1/50
C171
0.12
R172
5.6k
R171
5.6k
R165
1.5k
C142 10p
C143
N.U.
R143
910
VR101
50kA
TP143 TP160
TP161
TP183TP173
TP170
FG
C183
N.U.
R184
15k
R181
5.6k
R528
10k
R530
10k
C514 0.1
C510 0.1
TH531
22k
C521
6800p
C522
0.1
C526 0.01
E508 100/10
C508 0.1
E503 100/10
R521
10k
R520
10k
R519
10k
R518
10k
TP535
TP539
TP544
TP501
C500 0.1
R532 10k R531 10k R508 10k R522 10k R506 10k R505 10k R533 10k R504 10k R503 10k R502 10k R501 10k
TP502
TP503
TP504
TP515
TP506
TP507
R661 1.8k–1/4
R662 1.8k–1/4 R663 1.8k–1/4
R666
15k
2SC2412K
Q663
R664 1.8k–1/4
E661
330/25
TP508
TP664
TP663
R665
5.6k
TP509
TP510
TP511
TP543 TP542 TP541 TP538 TP537 TP536
TP534
R185 15k
TP180
TP184
TP181
TP591
TP592
10k
R592
Q592
KTC2874
Q593
FMC2
TP182
C184
N.U.
C172
0.15
C175
N.U.
C176
N.U.
C182 47p
TP593
10k
R517
IC501
TCP87P47U
R516 10k
10k
R513
IC521
S–80942CNMC R571
2.2kF
TP514
TP608
TP521TP520
TP522
FG
C504 0.1 C505 0.1
C016 1000p
D002 1SS133
D001
1SS133
C506 0.1 C507 0.1
E507 100/10
CL501
7.7MHz
Q664
2SB1243
TP223
TP197TP196
TP294
TP224
TP291
TP124 TP123
R105
22k
R205
22k
CB101
TERM HOU 5569–4A1
JK101
RCA JACK 2P
C222 1000p C221 1000p C122 1000p C121 1000p
Z104
BX1608HM102
Z103
BX1608HM102
Z101 BX1608HM102
Z201 BX1608HM102
Z202 BX1608HM102
Z203
BX1608HM102
Z204
BX1608HM102
Z102
BX1608HM102
R107
11k
R803
330
R207
11k
R206
11k
R106
11k
R804
330
TP193
TP293
E101
10/50
E201
10/50
E202
10/50
E102
10/50
L601
CHOKE
F101
C023 100p
C021 0.01
C601 0.01
C022
0.01
C024
100p
TML601
FUSE TERMINAL 3P
D601
11ES2 R670
30k–1/4 ZD671
HZS6A1L
GND
Q671
2SB1238
Q672
2SC2412K
TP672
R672
47k
R566 2.4k–1/4
R542 1.2kF R543 N.U. C541 0.01
ZD541 HZS5BLL
E641
330/25
E642
47/25
IC602
NJM78L05A
R565 2.4k–1/4
TP565
R526
56kF
R525
39kF
ZD521
HZS15–2L
C524
0.01
C523
0.027
C565 1000p
C671 1000p
R671 30k
LD565
2012 (BLUE)
IC522 S–80943CNMC
R673 3k–1/4
R524
4.7k–1/4
R541
3.9kF
D521
1SS133
TP525
TP580
R527
10k R523
4.7k D602
11ES2
TP512
TP532
TP531
TP505
TP529
TP528
TP524 TP523
TP527
TP618
TP607TP606
TP612
TP617
TP562
TP561
TP613 TP614
TP615
TP616
TP604
R609
220–1W
R610
220–1W
C007
0.1
R611
18kF
R603
220–1W
R608
10–1/4
C612
2200p
R562
0
R614
24k
R613
240kF
C604
2200p
C603
2200p
R604
220–1W
E602 47/25
E603 47/25
C513 0.1
R561 4.7k
R617 240k
R612 10kF
E601 100/25
Q604
IRFZ44N
IC601
uPC494GS
C611
1200p
Z604
BK2125HS601
Q561
DTA124EK Q602
IRFZ44N
R602
33–1/4
R623
33–1/4
Q601
IRFZ44N
Q603
IRFZ44N
R606
10–1/4
R605
10–1/4
R607
10–1/4
33–1/4 33–1/4
R622
E6002
R601
1000/25
R507
1.2kF
R653
10k
Q584
DTC114YK
Q582
DTC124EK
TP549
TP545
Q581
DTC124EK
D583 1SS133
D581
DAN202K
R585
10k
R586
10k TP571
TP586 TP546
TP381
R584 47k
ZD562
HZS9C1L
D301
1SS133
TP350
TP351
R559
10k
R325
1.2k
R324
33k
C321
120p
R322
2.7kF
R424
33k
C552
0.1
R558 47k
R801 100–1/4
C802
2200p
R807 100–1/4
R802 100–1/4
100–1/4 R808
TP813
C801 2200p
C803 0.015
C804 0.015
E801
2700/35
E802
2700/35
C816 1000p
C823 1000p
R809
1M
R810 1M
E813 220/16
220/16 E814
C824 1000p
C015 1000p
C817 1000p
R555 4.7k
IC551 NJM4560M
Q551
2SC2412K
IC605
NJM7815FA
BK2125HS601
Z602
IC606
NJM7915FA
Z603
BK2125HS601
D801
FFPF15U20DN
D802
FFPF15U20DP
R422
2.7kF
R421
120kF
R423
10k
C421
120p
E551
N.U.
C551
0.1
R557
4.7k
R553
39kF
R326
10k
ZD561
HZS9C1L
IC302
NJM2903M
DAN202K
D551
ZD551 HZS7B2LRX
TP451
TP553
TP556
TP555
TP808
TP809
TP807
TP810
TP811
TP487
TP450
TP557
TP803
TP603
E6001
1000/25
E6005
1000/25
1000/25
E6003
1000/25
E6004
TP812
TH801
22k
TP806
T801
EI (4T/8T)
R554
10kF
R556
10kF
R323 10k
R321 120kF
R576
5.6kF–1/4
R575
820–F
R572
820–F
R574
820–F
R615
8.2kF
R621
82kF
R616
8.2kF
R618
8.2kF
R573
3.3kF
C511 0.01
C512 0.1
R578
3.3kF
TH571
100k
TH572
100k
TP578 TP573
0.1
C503
D571
DAN202K
D572
1SS133
R529
10k
10k
R514
TP533
R511
10k
TP336
TP338
TP340
TP342
TP345
TP346
TP352
R354
10k
R003
0
R192
10k
R013
N.U.
E183
10/16 (B.P)
R358
10k
0.1 C357
0.22
C360
R193
10k E186
10/16
E184
10/16
E185 10/16
R190
820
R191
820
E331
1/50
E362
1/50 E361
1/50
R331
100–1/4
C532
0.1
C509 0.1
R509 470k R510 470k
TP353 TP354
TP357 TP358
TP360 TP361 TP363 TP364
R417
4.7kF–1/4
TP427
C367 N.U.
C351 0.1
C354 0.1
C366
0.1
IC301
TDA7570
R418
1kF
C413
2700p
R427
2.2k
TP355 TP356
TP332 TP331 TP328 TP325 TP323 TP324 TP322 TP321 TP315 TP318 TP317
R359 2.2
R317
4.7kF–1/4
C359
0.1
C353
0.1
TP327
C313
2700p
R327
2.2k
R318
1kF
C361 0.1
C807
0.33
R360
N.U.
R306 100
R333
N.U.
R316
27–1/4
R314
56
TP320
TP319
C306
1000p
L303
0Q302
IRFZ44N
Q301
IRF5305
L402 0
L403 0
R414
56
R433
N.U.
C404
0.33
R320
100k
R319 100k
R419
100k
R420 100k
R315 22–1/4
R332
N.U.
R305 100
R405
100
R406 100
L302 0
E301
10/100
C356
0.1
C355
0.1
C352
0.1
TP313
TP308
TP304 TP305
TP805
TP419
C805
0.1
C806
0.1
E401
10/100
R403
0.01–5W
R404
0.01–5W
10/100
27–1/4
R416
1000p/630
10/100
E402
TP420
E403
C407
E809
22/50
E810
22/50
E811
10/100
E302
10/100
E303
10/100
C304
0.33
C312
1000p
C009
N.U.
C008
0.01
TP301
C311
1000p
C013
N.U.
C014
N.U.
C412
1000p
C011
1000p
C012
1000p
R304
0.01–5W
R303
0.01–5W
C822
N.U.
C411
1000p
Q401
IRF5305
Q402
IRFZ44N C819
N.U.
C402
1.0
C401
0.47
C403 1500p
L401 15uH
TP401
2700/35 E804
C820
N.U.
N.U.
C821
E803
2700/35
R551 10kF R552 10kF
L306
1uH
TML301
BLOCK TERMINAL 2P
L406
1uH
L301
15uH
C301
0.47
R301
10–2W
R401
10–2W
C302
1.0
C303
1500p
R302
27–2W
R402
27–2W
C307
1000p
C305
1000p
C405
1000p
C406
1000p
R313
43
R413 43
R415
22–1/4
R432
N.U.
FG
FG
FG
FG
FG
COM
1 0
TO CONTENTS
TO PARTS LIST
TO P. W. Board

Terminal Voltage of IC/TR
1 4.5m 1 1.2m 1 11.0m 1 14.8m
2 5.7m 2 5.0m 2 11.0m 2 11.1m
3 5.1m 3 3.4m 3 10.9m 3 13.4m
4 15.35 4 -15.35 4 -15.35 4 -15.35
5 5.1m 5 1.7m 5 1.0m 5 7.5m
6 5.1m 6 3.0m 6 1.6m 6 7.8m
7 5.2m 7 13.3m 7 13.0m 7 7.9m
8 15.11 8 15.10 8 15.10 8 15.10
1 15.8m 1 7.2m 1 6.3m
2 15.8m 2 7.1m 2 5.3m
3 15.3m 3 6.9m 3 5.6m
4 -15.37 4 -15.36 4 -15.36
5 16.3m 5 0.7m 5 5.0m
6 16.4m 6 -0.1m 6 5.1m
7 16.5m 7 -5.2m 7 5.1m
8 15.10 8 15.10 8 15.01
1 N.C 17 0.59 33 N.C 49 1.0m 1 5.00
2 N.C 18 0.59 34 0.0m 50 0.0m 2 0.34
3 N.C 19 N.C 35 NC 51 NC 3 0.32
4 0.59 20 N.C 36 1.94 52 55.80 4 0.33
5 0.59 21 0.33 37 N.C 53 0.0m 5 0.33
6 N.C 22 0.33 38 1.21 54 11.3m 6 0.33
7 0.59 23 0.33 39 N.C 55 41.9m 7 4.99
8 0.59 24 0.31 40 1.21 56 2.8m 8 0.0m
9 0.58 25 0.33 41 N.C 57 0.5m
10 0.0m 26 0.33 42 0.60 58 0.33
11 N.C 27 0.40 43 N.C 59 0.33
12 0.59 28 1.21 44 N.C 60 0.30
13 0.59 29 1.21 45 2.0m 61 0.33
14 0.59 30 1.21 46 1.0m 62 0.33
15 0.25 31 1.21 47 NC 63 0.33
16 N.C 32 0.0m 48 N.C 64 0.33
1 4.99 12 4.99 23 0.57 34 4.99
2 4.99 13 4.07m 24 0.50 35 33.9m
3 4.99 14 4.97 25 3.1m 36 4.99
4 4.99 15 1.82 26 3.2m 37 4.99
5 4.99 16 20.70 27 5.00 38 4.99
6 1.94 17 3.09m 28 3.60 39 43.2m
7 4.99 18 4.11 29 4.99 40 4.99
8 4.99 19 3.36 30 4.99 41 2.8m
9 4.99 20 6.25 31 4.99 42 2.8m
10 4.99 21 3.25 32 0.37 43 0.5m
11 4.99 22 3.25 33 5.3m 44 8.2m
IC302
IC501
IC104 IC105 IC200
IC301
IC100 IC101 IC102 IC103
TO CONTENTS
TO SCHEMATIC

1 4.97 1 5.00 1 2.6m
2 4.68 2 8.03 2 2.6m
3 3.1m 3 2.9m 3 0.0m
4 N.C 4 N.C 4 3.3m
5 3.1m 5 2.9m 5 0.0m
6 2.7m
7 1.4m
8 1.1m
1 54.9m 5 -3.4m 9 0m 13 0.9m
2 4.56 6 0.5m 10 0m 14 0.9m
3 4.56 7 0.5m 11 0.45 15 0.9m
4 0.5m 8 0.45 12 0.45 16 0.5m
1 13.66 1 25.35 1 0.6m
2 2.9m 2 0.7m 2 -24.94
3 5.00 3 15.10 3 -15.35
GDS GDS
Q 301 21.45 -87.6m 25.34 Q 601 0.27 14.37 0.85m
Q 302 -21.09 -87.6m -24.93 Q 602 0.27 14.37 0.8m
Q 401 21.44 -80.8m 25.34 Q 603 0.27 14.37 0.9m
Q 402 -21.09 -82m -24.9 Q 604 0.27 14.37 0.84m
BCE BCE
Q 551 0.75m 4.99 0.78m Q 592 0.7 0.75m 1.1m
Q 561 4.87 0.21 5.05 Q 663 0.73 113.9m 3.1m
Q 581 16.3 5.17m 0.72m Q 664 13.67 14.36 14.37
Q 582 -8.98 -24.8 -24.9 Q 671 13.66 14.33 14.37
Q 584 1.0m 4.99 0.7m Q 672 0.67 54.8m 2.4m
12345
Q 593 NC 3.60 15.10 15.07 23.5m
[Measuring Conditions]
1.Power Supply Voltage : DC14.4V
2.Measuring Meter : Digital Multi Meter
3.Measuring Point Reference : Between GND
4.Measuring Condition : No signal input
IC551
IC602 IC605 IC606
IC522IC521
IC601
TO CONTENTS
TO SCHEMATIC

Descri
p
tion of IC Terminal
TCP87P47U : IC501
No. Symbol I/O Terminal Description
1 SHT-DET1(PULL-UP)
2 SHT-DET2(PULL-UP)
3 SHT-DET3(PULL-UP)
4 DATA IN2(PULL-UP)
5 CUR-DET1(PULL-UP)
6 CUR-DET2 I Over current detect 2 terminal.
7 CUR-DET3(PULL-UP)
8 CUR-DET4(PULL-UP)
9 DC-DET1(PULL-UP)
10 DC-DET2(PULL-UP)
11 DC-DET3(PULL-UP)
12 DC-DET4 I DC Offset detect 4 terminal.
13 TEST I Test terminal.
14 RESET I Reset terminal.
15 XIN I
16 XOUT O
17 VSS I GND connect terminal of A/D converter.
18 VAREF I Analog standard voltage terminal.
19 AD VOLT I Voltage signal input terminal.
20 AD THRM1 I Temperature signal input terminal. (u-COM)
21 AD THRM2 I Temperature signal input terminal. (transformer)
22 VCC REF I Output standard voltage terminal of Transformer.
23 TH-DET1 I Temperature detect 1 terminal.
24 TH-DET2 I Temperature detect 2 terminal.
25 TH-DET3(GND)
26 TH-DET4(GND)
27 WATCH DOG
(PULL-UP) - Pull-up connect terminal.
28 DATA OUT(-6dB) O -6dB MUTE circuit control terminal.
29 DATA IN1(PULL-UP) - Pull-up connect terminal.
30 AMP STATE I AMP state detect interrupt input terminal.
31 DATA IN(MUTE)
(PULL-UP) - Pull-up connect terminal.
32 DATA IN(-6dB)
(PULL-DOWN) - Pull-down connect terminal.
33 DATA OUT O Power supply circuit control terminal.
34 LED RED(PULL-UP)
35 DATA OUT(MUTE)
(PULL-UP)
36 TRIGGER IN
(PULL-UP)
37 BAT_DET I BAT-DET terminal.
38 SHT-DET4(PULL-UP) - Pull-up connect terminal.
39 PWM MUTE O PWM MUTE terminal.
40 VDD I Power supply terminal. (4.5 to 5.5V)
41 494 CONT O PWM IC(uPC494GS) control terminal.
42 PWM ST-BY O PWM STAND-BY terminal.
43 LED BLUE(GND) - GND connect terminal.
44 VOLT-DET I Output voltage detect terminal of Transformer.
Pull-up connect terminal.
Crystal OSC connect terminal.
- Pull-up connect terminal.
- Pull-up connect terminal.
- GND connect terminal.
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TO CONTENTS
TO SCHEMATIC