Accuphase E-308 - Detailed Circuit Schematics

L2
R3
475
R4
475
L1
R11 393
R12 393
R15 333
R13 473
R16
243
R17
473
R18 473
C7
223
/2A
C6
223
/2A
+55V
-55V
AC42V
GND
A-LCH GRN
GND BLK
GND GRY
A-RCH YEL
GND BLK
L-CH GRN
GND BLK
R-CH YEL
from each POWER K3
COM
METER
L-CH R-CH
HP GND
L-CH HP
R-CH HP
R20 100
3D
R19 100
3D
R21 100
3D
R23 392
3A
1 4 6 8
16 13 11
9
RELAY3
362-2232-00
C1
334 /1H
C2 334 /1H
R14 183 2H
G
1
O1
2
H1
3
I1
4
V-
5
I2
6
H2
7
O2
8
V+
9
IC1 TA7318P-2
OL
1
CV
2
LH
3
AC
4
G
5
RD
6
MT
7
VC
8
IC2 UPC1237HA
3
2
1
VR1
583-0524-00
471
3
2
1
VR2
583-0524-00
471
3 6
1
8
4 5
RELAY2
362-3204-10
3 6
1
8
4 5
RELAY1 362-3204-10
D6
MA167
D5
MA167
D7 MA167
B-SP
COM
A-SP
B-LCH VIO
B-RCH RED
D3
MA167
L-GND
R-GND
L-CH
R-CH
to TONE K1
to PHONES Ass'y K1
R1
331
R2 331
R24 102
R25 102
1
2
3
4
5
6
7
K1
308-0707-00
1 2 3
K2
308-0306-00
R22 100
3D
R5 362 3D
R6
362 3D
R9 221 3F
R10
221 3F
R8 154
D1
HZ9A2L
Q1 2SC2458_-GR
Q2
2SC2458_-GR
D2
MA167
R7 473
1
2
3
4
5
K3
308-0508-00
M.MUTE
GND
to LOGIC K1
C3
221 /0J
C4
4R7
/1V
C5 101 /0J
K8
K9
K10
K11
K13
K12
K5
K7
K6
K4
to SP Terminal
R26 333
- 2 3 -
E
-
3
0
8
P
R
O
T
E
C
T
I
O
N
A
S
S
'
Y
(
7
2
0
-
0
0
6
8
-
0
0
)