Accuphase E-213 Service Information page 18

A T T E N U A T O R A S S ' Y
( 7 1 6 - 0 7 0 7 - 0 0 )
to K3 of Tone Vol to K2 of Vol
K1 K2
R1 R3 R4 R2
51k 9.1k S1 9.1k 51k
354-1218-00
3 6
2 5
1 4
Att.
T O N E S W I T C H A S S ' Y ( 7 1 6 - 0 7 1 3 - 0 0 )
to K4 of Tone Vol to K1 of Vol
R2
3.3k
S3
354-1218-00
354-1218-00
3 6 3
C2
2 5 2
1 4 1
100n
MONO COMP
I N P U T S E L E C T O R A S S ' Y
( 7 1 6 - 0 7 0 8 - 0 0 )
to K1 of Logic
3
2
1
12
11
10
to K10 of Logic to K6 of IO Relay
R1
3.3k
S1
354-1412-00
6 12
5 11
S2 4 10
6 3 9
C1
5 2 8
4 1 7
100n
TONE
H E A D P H O N E A S S ' Y
( 7 1 6 - 0 7 1 0 - 0 0 )
K1
308-0311-00
to K3 of Protection
4
5
6
7
8
9
S1
339-0002-00
C O N N E C T O R B O A R D A S S ' Y ( 7 1 6 - 0 7 0 9 - 0 0 )
K5
308-0214-00
1
GND
2
GND
to K5 of IO Relay
1SR139-400
from Power Trans
2
GND
1
AC12V
F1
K3
308-0207-00
310-8251-00
to K11 of Logic K2
308-0206-00
1
-12V
2
+12V
K4
308-0606-00
1
OpT_L
2
GND
3
Opt_R
4
-12V
5
+12V
6
Option_sel
JK1
K1
R
1 L
LOUT
2 G
ROUT
3
GND 302-1204-00
IC3 NJM78M05FA
I O
C7
C8
100n
100u
6.3V
IC2 NJM78M12FA
D3
R2
I O
C1
C4 10
2200u C3 D1 10u
25V 100n 25V
2200u C2 11EQS10 C6
25V C5 100n 10u
D2
R3 R1
25V
I O
24
1SR139-400 10
IC1 NJM79M12FA
M E T E R A S S ' Y
( 7 1 6 - 0 7 1 2 - 0 0 )
to K7or 9 of Logic
K1
PL1
L2 L1
M- M+
178-2034-00
K1
1A
1B
2A
2B
3A
Option_sel
3B
4A
+5V
4B
+5V
5A
5B
6A
AGND
6B
AGND
7A
7B
8A
-12V
8B
-12V
9A
AGND
9B
AGND
10A
+12V
10B
+12V
11A
R5 Rout
11B
Rout
12A
100
AGND
12B
AGND
13A
Lout
R4
13B
Lout
14A
100
14B
15A
15B
16A
16B
307-3204-00