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1 2 3 4 5 6


P101 MASTER SECTION
B100K C/T P21
R109 3 1
R110 OUTPUT
B100K C/T
1k 1k R24 3 1
R25 R30 2 J21
Treble




2
C107 U102A 4
R107 C22 1k 1k CLIP 1k




E-Sig
+U102 1




P-Sig
GND
F 1n Treble F




2
R111 C24 +U21 J8003




8
100k 2 1n8




8
1 100p 2 C26 R29
C108 220 3 4558 1
C110 R21 3 4558 P23
0.1 R114 R27




1
820




4
1u U21A 10u SEND
10k 39k B10K C/T




4
LINE INPUT +U101 -U102 18k B100K C/T
C105 Bass R115 C21 P22 Bass -U21 2 2 J22
R106




8




2




2
J101 2 2 C106 P102 6 C23 4
4 1
R112 1 3
R113 1k 7
R22 R26 1 3
R28 1
1 18k 10u 3 4558 5 4558 MASTER
1u J8003




1
1k




3
U101A 22u 10k 10k 10k 10k
J8003 R108 B100K C/T Volume U21B 1u

4
C104 R116 C25
-U101 100k C109 2
100p
P103 15k
39n RETURN




1
B50k
33n




3
R117
PA 2 J23
E 2 4 E
R105 REVERB 1
CHANNEL 1...4 Rev/Efx 15k
R59 R58 C59 J8003
10k P104




3
3
MIC INPUT C101 R101 R104 B50k
Component Designators 15k P51 1k 3u3
C52 2 B50K
J102 560 5k6 For Ch: 1..4: 1xx .. 4xx R57
22u 100k
1 6
3 C102 R102 4558
7 100p R55




1
2 5 +15V
R51 C54
U101B CLIP 5mm LED Red +U51
560 100k
XLRM 22u




6
R103 D81 C51 47k 10n C57
47k L51 Shielded cable!
C103 4148 5mm LED Green 6 C53 R52 2
IN- OUT
5 47p




+
100p R83 D82 D83 7 3 22uH +U51 EFX RETURN
1u 5 4558 IN+ C55 C56
47k R54




8
U51B 22n 56k 1 7 1 3u3 3 2 C58 2 J51
D 8
GN1 BYP R56 D
R81 R53 1 4




2
C81 GN2 2k2




-
6 2 33n
4 3 4558 1
1n 56k Q81 10k 1k
CD INPUT 73 U51A 1u J8003
4558 U52




4




4
5 C3198 Rev51
J41 3
R41 LM386 REVERB -U51
R47 U41B




1
10k CD/TAPE LEVEL R82 R84 R85 R86
R42 33k C82 2 Springs 600-2.2K EFX SEND
2 56k 220 1k8 2k2
C42 0.33u C50
10k R50 2 J91
100p
1 4
1




P41 +U41 2u2 33k +VCC R60 1
Dual RCA Input
C41 R44 100k J8003
8




2 2 C43 R48
1 R65 R70
J42 R43 2k2 4558
2 10u 3 1k 2k2/0.5W




2
4 U41A 1u 15k
10k B50k R71 Q64
3




4




1 3




2
C -U41 C1027 C
J8003 U1 C63 2k2 D63 3 Q66
R66 C66




1
7815 +15V 47u 4148 D1047
100k 100u
AUX INPUT D1 1
I O
3 C65




1
4002
-




D64 R73 R75
C1 A1266GA 33p 4148
C2 C6 220/0.5W 0.5/5W SPEAKER 1




1




1
2




*S/K 1n/500V D2 220u/25V C4 220u C61
AC230V 2.0A 0.1u PA R61 3 Q61 3
R69 2 J61
4002
3 4




3
AC120V 4.0A 2k2 2u2 39k TP61 R74 R76 1
Q62




2




2
F1 S1 D3 D61 D62 R68 B500 220/0.5W 0.5/5W R77 J8003
1 4 C3 C5 C7 A1266GA 2
4002 4148 4148 1k 10/0.5W
2




220u/25V 0.1u 220u




2
FUSE SRA1101 C67 *SVA Adj.
Q67 SPEAKER 2




1
-




5 D4 1 3 3




1
I O B817
4002 R62 R63 2 J62
6 -15V C62 100k 3 Q65 C69 4
U2 6k8 33p




2
C64




1
KBU6J 100p R64 R67 A1023 100n 1
B 7915 22u Q63 B
+VCC 12k* 6k8 3 J8003




2
J1 2 7 Br1 C3198GR
- +
AC Socket C8




1
4700u/50V *Adj
Tr1 8 R72
MT-60E C68
C9 47u 150
4700u/50V

-VCC *Bias Adjustment -VCC

+U101 +15V +U102 +15V +U41 +15V +U21 +15V +U51 +15V 1) SVA/B500: Q66 Base to GND = DC 0.58V All unspecified capacitors in uF, resistors carbon 5%
R11 R13 R15 R17 R19 Q67 Base to GND = DC 0.58V
100 100 100 100 100 12%(/6(OHFWURQLFV
C11 C13 C15 C17 C19 2) Res/R64: 1/4W 12K-15K = DC 0.58V Barnerstrasse 42, 22765 Hamburg, Germany
47u 47u 47u 47u 47u
A http://wwww.nobels.com - email: [email protected] A
C12