Accuphase E-308 - Block Diagram; Signal Flow and Assembly Interconnections

/SEL_A
/SEL_B
/SEL_C
VCC
/RCON
1 4 6 8
16 13 11 9
RELAY1 362-1212-00
+12VD
D3 MA165
D2 MA165
VCC
D1 MA165
R3 103 C4 2R2 /1H
R6 223
C5 104 R5 105
C2 104
VCC
VCC
/SHUTDN /RST
AC12V
D4 1SR139-400
AC12V
C7 101 /1E
Q1 2SC3902_-S/T
R8 101
R7 152
C10 220 /1C
R10 332
+12VD
C1 102 /1E
R4 220
C6 471 /1E
C9 220 /0J
I
G
O
IC2 NJM78M05FA
C8 104
VCC
P70
1
P71
2
P72
3
P73
4
P74
5
P75
6
P76
7
P77
8
P00
9
P01
10
P02
11
P03
12
P04
13
P05
14
P06
15
P07
16
P10
17
P11
18
P12
19
P13
20
P14
21
P15
22
P16
23
P17
24
P20
25
TEST
26
P21
27
P22
28
/RST
29
XIN
30
XOUT
31
GND
32
VCC
64
P67
63
P66
62
P65
61
P64
60
P63
59
P62
58
P61
57
P60
56
P56
55
P55
54
P54
53
P53
52
P52
51
P51
50
P50
49
P47
48
P46
47
P45
46
P44
45
P43
44
P42
43
P41
42
P40
41
P37
40
P36
39
P35
38
P34
37
P33
36
P32
35
P31
34
P30
33
IC3 TMP87PH00N
XI
1
XO
3
G
2
XTAL1 527-0012-00
/RST
/SHUTDN
CS
1
SK
2
DI
3
DO
4
VCC
8
NC
7
ORG
6
GND
5
IC7 M93C46-BN6
CS_EEP SK_EEP DI_EEP DO_EEP
R17 473
VCC
CS_EEP
SK_EEP
DI_EEP
DO_EEP
VR-
VR+
C11 104
VCC
VR_UP
VR_DN
V1
1
V2
2
O2
3
I1
4
G1
5
G2
6
I2
7
O1
8
V3
9
V4
10
IC5 LB1642
VR_UP
VR_DN
/SEL_A
/SEL_B
/SEL_C
/INT2
/INT1
R9 471
$RLY_METER
/RCON
OPTION2
CDB
OPTION1
LB
PREOUT
RECOFF
T/S
M2/M1
LINE2
LINE1
CD
/TUNER
OPTION2
RECOFF
CDB
T/S
OPTION1
LINE2
LB
LINE1
PREOUT
CD
/TUNER
I1
1
I2
2
I3
3
I4
4
I5
5
I6
6
I7
7
GND
8
O1
16
O2
15
O3
14
O4
13
O5
12
O6
11
O7
10
COM
9
IC4
TD62003AF
/TD62003F/EL
M2/M1
I1
1
I2
2
I3
3
I4
4
I5
5
I6
6
I7
7
GND
8
O1
16
O2
15
O3
14
O4
13
O5
12
O6
11
O7
10
COM
9
IC6
TD62003AF
/TD62003F/EL
/OPTION2
/CDBAL
/OPTION1
/LINEBAL
/PREOUT
/RECOFF
S/M
M1/M2
/LINE2
/LINE1
/CD
TUNER
C12 104
VCC
/OPTION2
/CDBAL
/OPTION1
/LINEBAL
/PREOUT
/RECOFF
S/M
M1/M2
/LINE2
/LINE1
/CD
TUNER
+12VD +12VD
/LED_TONE
/LED_MONO
/LED_COMP
/LED_EXT
/MONO
/EXT
R11 102
+12VD
/COMP
VR-
VR+
/SCAN1
/SCAN2
/RET1
/RET2
/SW_ROFF
/SW_SRC
/SW_M1
/SW_M2
+12VD
/TONE
/SCAN1
/SCAN2
/RET1
/RET2
/RET3
/SW_ROFF
/SW_SRC
/SW_M1
/SW_M2
1
2
3
4
K5
308-0407-00
1
2
3
4
5
K6
308-0508-00
1
2
3
4
5
6
7
8
9
K4
307-0911-00
1
2
3
4
5
6
7
K8
308-0707-00
1
2
3
4
K10
308-0407-00
1
2
3
K11
308-0311-00
1
2
3
4
5
6
7
8
9
10
11
12
K7
308-1207-00
1
2
K2
308-0213-00
AC12V
1 2
F1 310-8251-00
AC12V
C3 102 /1E
AC12V
Up
Up
/LED_TONE
/LED_COMP
/LED_MONO
/LED_EXT
/LED_REC
/LED_MON
/RLY_COMP
VR-
VR+
LED_COM
VCC
/LED_1
/LED_2
/LED_3
/LED_4
/LED_5
/LED_6
/LED_7
/LED_8
/SEL_C
/SEL_B
/SEL_A
/RCON
DGND
DGND
VCC
LAMP_LOGO
LAMP_LOGO
LAMP_METER
LAMP_METER
Protection K3to Ass'y Receiver
K1
to Ass'y
Input Selector
K1
from Ass'y
Selector LED
K1
to Ass'y
Display
K1
to Ass'y
Volume
K3
to Ass'y
Bal Amp
K3
to Ass'y
I/ORelay
K1
to Ass'y
Tone Amp Ass'y K4 tofrom Power Trans
/LED_1
/LED_2
/LED_3
/LED_4
/LED_5
/LED_6
/LED_7
/LED_8
/LED_1
/LED_2
/LED_3
/LED_4
/LED_5
/LED_6
/LED_7
/LED_8
/MONO MONO
MONO
/EXT
EXT
/RET3
/LED_REC
EXT
/LED_MON
X2 RN1206
TONE
TONE
X3 RN1206
COMP
COMP
VCC
RA1 104J
X1 RN1206
METER
R12 102
R13 102
R14 102
R15 102
R16 102
VCC
Up
Up
1 2
IC1A
TC74HC14AP
3 4
IC1B
TC74HC14AP
5 6
IC1C
TC74HC14AP
9 8
IC1D
TC74HC14AP
11 10
IC1E
TC74HC14AP
13 12
IC1F
TC74HC14AP
1
2
K1
308-0206-00
1
2
3
4
5
6
7
8
9
10
11
12
13
K9
308-1303-00
1
2
K3
309-2260-04
R1 120
R2 4R7
- 2 4 -
E
-
3
0
8
L
O
G
I
C
A
S
S
'
Y
(
7
2
1
-
0
0
7
5
-
0
0
)