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MRV-F345
Service manual
39 pgs4.66 Mb0
User Manual
24 pgs820.19 Kb0
Specifications
1 pgs10.18 Kb0
User Manual
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User Manual [ru]
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User Manual [de]
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User Guide
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Alpine MRV-F345 Service manual

SERVICE MANUAL
TO ALPINE Home Page
4 CHANNEL POWER AMPLIFIER
"Schematic Diagram cannot use a reference function"
MRV-F345
1 / 05-A 68E37844S01
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 -
MRV-F345
Packing Assembly Parts List Packing Method View Specifications Extension Cable Block Diagram Parts Layout on P.W.Boards and Wiring Diagram Schematic Diagram Terminal Voltage of IC/TR
8 to 10 11 to 17 18 to 21
Description of IC Terminal Exploded View (Cabinet)
4 4 5 6 7
22 23
NOTE : Due to continuing product improvement, specifications and designs are subject to change without notice.
Packing Assembly Parts List
- 4 -
TO CONTENTS
MRV-F345
Symbol SymbolDescription
Part No. Part No.
No. No.
101-1 101-2 101-3 102
#1
102
$1
102
$1
NOTE:#1:For North American Model Only,$1:For General Foreign Model Only,Others:Common.
03E38301S01 SCR,M4X20 BLK 03E38302S01 WRENCH,M2.5 03E38303S01 WRENCH,M4 68-02278Z39 OWNER'S MANUAL 68-02278Z40 OWNER'S MANUAL
68-02278Z41 OWNER'S MANUAL
Packing Method View
101 -1
Description
101 -2
101 -3
5 4 3
F
-
V
R
M
R
IE
LIF P M
R A
E W O
L P
NNE
4CHA
Specifications
Power Output ............................................................................. 4ohm x 4ch, 0.3% T.H.D.+N, 20Hz to 20kHz : 75W
ch 3/4 : 2ohm & 2ohm, 0.8% T.H.D.+N, 20Hz to 20kHz
: 150W
ch 3/4 : 4ohm-BTL, 0.8% T.H.D.+N, 20Hz to 20kHz
: 300W
T.H.D.
............................................................................................. 4ohm x 4ch, 75W Power, 20Hz to 20kHz : 0.08%
ch 3/4 : 2ohm & 2ohm, 150W Power, 20Hz to 20kHz
: 0.8%
ch 3/4 : 4ohm-BTL, 300W Power, 20Hz to 20kHz
: 0.8%
Input Sensitivity (RCA Voltage) ................................. Input Gain 0.2V position, 17.4V sine wave output : 0.25±0.5V
Input Gain 4.0V position, 15.0V sine wave output : 4.0±0.5V
Pre Out Level (Input 0.5Vrms) ...................................................................................................................... 0.5±0.1V
Frequency Response (1kHz 0dB, 1W) .............................................................................................. 20Hz : -1 to 0dB
50kHz : -1 to 0dB
Channel Separation (Input shorted, 1kHz, 1W) .................................................................................................. 55dB
S/N Ratio (Input shorted, Signal : 75W) ............................................................................................................. 90dB
Remote Voltage (ON/OFF) ...........................................................................................................................
5 to 7.5V
Current Drain ...................................................................................... Remote (Remote Voltage 14.4V) : 1.3±0.3mA
No Signal : 0.7 to 2.5A
75W x 4 Output (4ohm x 4ch, 1kHz) : 43±4A
Back up (15 seconds later) : 5mA
Fuse Requirement .................................................................................................. 30A (Peak) x 2 (For Battery Line)
Power Source ......................................................................................................................... DC14.4V (10.5 to 16V)
Dimensions (W x H x D) ............................................................................................................. 330 x 61 x 227.8mm
Weight ................................................................................................................................................................
3.5kg
NOTE : Due to Continuing product improvement, specifications and designs are subject to change without notice.
MRV-F345
- 5 -
TO CONTENTS
Extension Cable
- 6 -
TO CONTENTS
CN520 CN540
MRV-F345
*Always connect the Extension Cable when making checks of voltage and repair.
VR1 P.W.Board VR2 P.W.Board
(2) (1)
MAIN P.W.Board
CN602
CN502
CN702
(3)
CN501
(1) No Extension * (2) No Extension * (3) 01E37824S01
* It is possible to use by
existing cable in product.
LCD P.W.Board
Block Diagram
- 7 -
TO CONTENTS
RCA INPUT
4CH
ISO. AMP
ch2
ch1
VOLUME IC
FREQ VR
X20
VARIABLE FILTER
VARIABLE FILTER
FLAT LPF
HPF
HPF LPF
FLAT
FILTER
MUTE
MUTE
ch1 POWER AMP
ch2 POWER AMP
SPEAKER TERMINAL
ch1 ch2
MRV-F345
+B
REM
GND
LINE OUT
2CH
to AMP
POWER TERMINAL
REM-ON
BUFFER
38V 40V
to uCOM
MIX MIX MIX MIX
15V REG
DC/DC Conv.
uPC494
5V REG
AMPLINK
DIN 6P
BUFFER
INPUT SELECTOR
to OP-AMP
to LCD
LCD
AD-KEY
KEY
LED
to VOLUME IC
9V REG5V REG
POW P2
CE,DI,CLK,INH
LED
DIN,DOUT,CLK
ch3
ch4
VOLUME IC
POW P1
FREQ VR
X20
CE1 , CE2 , CL , DI
FREQ , X20
VOL_CONTROLL
uCOM
FLAT LPF
AD THRM
AD THRM DET
AD VOLT
AD VOLT
B DET
RESET
I2C (SDA SCL)
HPF
HPF LPF
FLAT
MUTE
OUT_THRM
VARIABLE FILTER
VARIABLE FILTER
DC-OFFSET , OUTPUT-CURRENT-LIMIT
FAN1 , FAN2
FILTER
LM20
VOLTAGE DETECT
BD5243G
BR24L01A
MUTE
MUTE
ch3 POWER AMP
ch4 POWER AMP
MUTE DRIVE
OUTPUT THERMAL DETECT
THERMAL DETECT 2
VOLTAGE DETECT
BD5242G
FAN DRIVE
DC FAN
SPEAKER TERMINAL
ch3 ch4
Parts Layout on P.W.Boards and Wiring Diagram(1/3)
- 8 -
TO CONTENTS
MAIN P.W.Board (Component Side View)
1
BEBEBEBEBEBE
MRV-F345
B
E
2
4
3
BE
EB
EB EB
EB
EBEB
EB EB
EBEB
EB EB
EB
EB
EB EB
EBEBEBEBEBEB
EB
111
1
31
3
E
B
B
E
D
G
D
G
D
G
D
G
5
A
1
4 1
1
111
11 11
16 2
16
17
117
2
1
To CN501
17 1
216
To CN502
16 2
To VR2 P.W.Board (CN540)To VR1 P.W.Board (CN520)
4
1 11
117
BLK
WHT(1)
From LCD P.W.Board (CN602)
31
51
To CN702
WHT(5)
WHT(4)
WHT(2)
WHT(6)
WHT(9)
WHT(7)
WHT(8)
WHT(3)
WHT(10)
6
24
3
34 21
13
Orange Color Pattern:Component Side Pattern Blue Color Pattern:Foil Side Pattern
FGEDCB
Parts Layout on P.W.Boards and Wiring Diagram(2/3)
- 9 -
TO CONTENTS
MAIN P.W.Board (Foil Side View)
1
BE
B
BE
E
B E
2
3
E
E
B
B
1
2
B
E
BE
5
3
B
E
1
2
B
E
BE
5
3
MRV-F345
B
E
B
E
BE
B E
BE
E B
B
E
B
E
1
2
5
BE
3
E
B
1
BE
2
BE
5
3
BE
E B
4
5
A
BE
BE
BE
BE
BEBEBE
3
1
4
E
B E B
5
3
1
4
5
BE
Orange Color Pattern:Component Side Pattern Blue Color Pattern:Foil Side Pattern
FGEDCB
Parts Layout on P.W.Boards and Wiring Diagram(3/3)
- 10 -
TO CONTENTS
VR1 P.W.Board
(Component Side View)
1
2
VR2 P.W.Board
(Component Side View)
CN521
171
CABLE,FLAT 17P
To CN520To CN540
To MAIN P.W.Board (CN501)
VR1 P.W.Board (Foil Side View)
32 17
116
VR2 P.W.Board (Foil Side View)
32 17
MRV-F345
4
5
3
1 17
To MAIN P.W.Board (CN502)
CN541
CABLE,FLAT 17P
LCD P.W.Board (Component Side View)
CN601
ASS'Y,WIRE 11P
To CN602
WHT(3)
WHT(2)
WHT(4)
WHT(1)
BLK
To MAIN P.W.Board (CN702)
WHT(5)
WHT(7)
WHT(6)
WHT(8)
111
WHT(9)
WHT(10)
ASSY,FAN F4010BQ-12
21
To CN603
BLK RED
2
1
FAN 1
M
116
LCD P.W.Board (Foil Side View)
E
B
EB
E
B
Orange Color Pattern:Component Side Pattern Blue Color Pattern:Foil Side Pattern
A
FGEDCB
ABCDEF
- 11 -
TO CONTENTS
TO PARTS LIST
TO P. W. BOARD
Schematic Diagram(1/7)
3-E3 3-E3 3-E3 3-E3
3-E3 3-E3 3-E3 3-E3
1
3-E3
2-E3
2-E3
2-E3
2
From LCD P.W.Board(CN601)
MRV-F345
2-E4 2-E4
2-E4 2-E4
1
2
3
4
3
4
5
5
MAIN P.W.Board(1/4)
ABCDEF
ABCDEF
- 12 -
TO CONTENTS
TO PARTS LIST
TO P. W. BOARD
Schematic Diagram(2/7)
3-D5
1
2
3-D5
3-D5
3-D5
4-E5
4-E5 4-E5 4-E5
4-E5
4-E5
4-E5 4-E5 4-E5 4-E5 4-E5
4-E5
MRV-F345
1
2
3
POWER SUPPLY
4
IC900
1-A1 1-A1
1-A2
1-F2
1-F2 1-F2
1-F2
3
4
5
5
MAIN P.W.Board(2/4)
ABCDEF
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