M-5000R
SCHEMATIC DIAGRAMS - 4/6
METER AMP. SECTION
A
1
2
3
4
5
B
C
D
E
F
G
H
RANGE10
RANGE10
METER_L
RANGE10
RANGE1
+3.3V
MGND
VOLH
METER_L
METER_R
METER_R
SIG_METER_L
-BM15V
SIG_METER_R
GND
-15V
-15V
+15V
RANGE1
+15V
RANGE1
+BM15V
NJM4580
9mAMAX
max1mA
MAX10Vrms
Lch
MAX10Vrms
max1mA
Rch
to MICON
to RCA_IN
max1.5mA
max1.5mA
Q7711B
NJM4580
3
2
1
Q7711A
NJM4580
5
6
4
7
8
R7740
15K
Q7710B
NJM4580
3
2
1
Q7712B
NJM4580
3
2
1
Q7702B
NJM4580
2
3
1
Q7726B
NJM4580
2
3
1
R7742
18K
R7756
1K
Q7714
RN1441
Q7716
RN1441
C7723
2.2/50
R7729
100K
Q7701B
NJM4580
2
3
1
R7716
47K
Q7709B
NJM4580
2
3
1
Q7725B
NJM4580
3
2
1
R7724
220
R7726
220
R7727
18K
R7728
18K
R7757
10K
R7734
100K
Q7702A
NJM4580
7
8
5
6
4
Q7701A
NJM4580
5
6
4
7
8
P7701A
NSAS-10P1926
1
2
3
4
5
Q7728C
HEATSINK
R7751
18K
R7772
0.5A-UL-125V
R7771
0.5A-UL-125V
R7711
15K
D7708
UDZS5.1B
D7707
UDZS5.1B
C7721
100/25
R7769
2.2(1/2W)
C7737
104J
R7759
2.2K(1/4W)
C7735
100/25
C7736
100/25
C7734
47/25
D7714
UDZS16B
D7713
UDZS16B
C7733
47/25
Q7728A
2SC5171
R7760
2.2K(1/4W)
C7732
330/35
C7731
330/35
Q7729A
2SA1930
C7742
100/25
C7741
100/25
R7779
2.2(1/4W)
R7780
2.2(1/4W)
R7768 10K
D7722 1N4003
D7715
S1NB60-4062
D7721
1N4003
D7716
1SS352
D7720
NC
R7776
10K
R7775
10K
R7701
10K
R7767
10K
D7717
1SS352
R7717
0
C7717
102J
R7753
10K
R7707
470
D7711
1SS352
Q7725A
NJM4580
5
6
4
7
8
R7705
10
D7709
1SS352
R7703
1K
R7719
39K
Q7723
DTC114EKA
R7747
22
R7743
100
R7731
15K
C7709
101
R7777
100K
R7749
2K
R7735
10K
R7737
100K
R7745
100K
R7713
15K
P7705 NPLG-2P29
1
2
C7701 101J
R7715
47K
R7709
2.2K
Q7705
2SC2240-GR
Q7709A
NJM4580
7
4
6
5
8
C7703
101J
Q7707
2SC2240-GR
R7721
1K
D7705
1SS352
R7741
18K
R7739
15K
R7755
1K
R7761
4.7K
D7701
1SS352
D7703
1SS352
Q7719
DTA114YKA
Q7717
DTA114YKA
R7723
220
R7725
220
R7733
100K
Q7715
RN1441
Q7713
RN1441
Q7718
DTA114YKA
Q7720
DTA114YKA
R7762
4.7K
D7702 1SS352
D7704 1SS352
Q7712A
NJM4580
5
6
4
7
8
D7706
1SS352
R7712
15K
R7710
2.2K
Q7706 2SC2240-GR
C7702
101J
R7714
15K
P7706
NPLG-2P29
2
1
R7750
2K
R7746
100K
R7738
100K
R7736
10K
R7778
100K
R7704
1K
R7752
18K
R7720
39K
R7744
100
R7748
22
R7732
15K
C7710
101
C7722
100/25
R7758
10K
D7710
1SS352
R7706
10
Q7726A
NJM4580
6
5
8
7
4
D7712
1SS352
R7702
10K
R7708
470
R7754
10K
C7724
2.2/50
R7718
0
C7718
102J
Q7724
DTC114EKA
R7722
1K
R7730
100K
Q7708
2SC2240-GR
Q7710A
NJM4580
7
4
6
5
8
C7704
101J
P9502C
NPLG-3P218
1
2
3
R7773
2.2K
P7505A
NSAS-14P1919
1
2
3
4
5
6
7
R7770
2.2(1/2W)
TO BAPS-0559
SD-6 : C3
TO BADG-0566
SD-5 : E5
TO BADG-0566
SD-5 : E1
U0023
BAETC-0562
BY MARK
ARE CRITICAL FOR SAFETY
IDENTIFIED
NOTE
THE COMPONENTS
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.
.
VOLTAGE (MEASURED WITH VOLTMETER)
IS DC VOLTAGE. (NO INPUT SIGNAL)
.
ALL PNP TRANSISTORS ARE EQUIVALENT
.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
.
ELECTROLYTIC CAPACITORS (
) ARE IN
F/WV.
.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030 3pF 330 33pF 331 330pF
u
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX)
PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
.
.
TO 2SA1015-GR UNLESS OTHERWISE NOTED.
333 0.033uF
METER ADJUSTMENT
1. 10 minutes heat runnning.
2. Adjust the trim resistances, R5521,5522,5621 and 5622, center before
POWER ON.
3. Make sure that METER RANGE X1 LED is lit.If it is not lit, push the
METER RANGE button until it is lit.
4. Connect 8ohms load with L/R speaker out and input the sine wave 1kHz.
Futhermore set the voltage of L/R speaker out to 283mV(±10mV) by adjusting
the input gain.
5. Set the voltage of P7705 to ±0.05V by adjusting R7743.
6. Set the voltage of P7706 to ±0.05V by adjusting R7744.
7. Set the Lch meter's indicator to 0.01W by adjusting R7749.
8. Set the Rch meter's indicator to 0.01W by adjusting R7750.
9. Connect 8ohms load with L/R speaker out and input the sine wave 1kHz.
10. Furthermore set the voltage of L/R speaker out to 8.94V(±0.2V)by adjusting
the input gain.
11. Set the Lch meter's indicator to 10W by adjusting R7755.
