1A
2A
3A
4A
5A
SPEAKER
S1A
336-4817-00
5B
1B
2B
3B
4B
S1B
336-4817-00
1A
2A
3A
4A
5A
RECODER
S3A
336-4817-00
5B
1B
2B
3B
4B
S3B
336-4817-00
/RET0
/RET1
/RET2
/RET0
/RET1
/RET2
/RET3
/RET0
/RET1
/RET2
/RET0
/RET1
/RET2
/RET3
1A
2A
3A
4A
5A
COPY
S2A
336-3903-00
5B
2B
3B
4B
1B
S2B
336-3903-00
/RET0
/RET1
/RET2
/RET0
/RET1
/RET2
/SCAN0
/SCAN1
/SCAN2
/SCAN3
/SCAN4
3A
1A
2A
4A
10k
BASS
VR1A
575-2406-10
3B
1B
2B
4B
10k
VR1B
575-2406-10
LGND
RGND
Min_L
Max_L
VRB_L
Min_R
Max_R
VRB_R
3A
1A
2A
4A
10k
TREBLE
VR2A
575-2406-10
3B
1B
2B
4B
10k
VR2B
575-2406-10
LGND
RGND
Min_L
Max_L
VRT_L
Min_R
Max_R
VRT_R
Q2
2SK2541_
Q1
2SK2541_
3A
2A
1A
10k
BALANCE
VR3A
575-2313-00
3B
2B
1B
10k
VR3B
575-2313-00
10k
R3
10k
R1
47k
R2
VCC
VCC
VCC
/ADCPOL
BALCNTS
1
2
3
4
5
6
K2
280-9006-00
1
2
3
4
5
6
K3
280-9006-00
/RET0
/RET1
/RET2
/RET3
/ADCPOL
/RET0
/RET1
/RET2
/RET3
/SCAN0
/SCAN1
/SCAN2
/SCAN3
/SCAN4
BALCNTS
VCC
Min_L
Max_L
VRB_L
Min_R
Max_R
VRB_R
LGND
RGND
VRT_
L
VRT_
R
G
1
2
3
4
MM/MC
S5
354-1111-00
G
1
2
3
4
MONO
S7
354-1111-00
G
1
2
3
4
COMP
S9
354-1111-00
G
1
2
3
4
EXTPRE
S4
354-1111-00
G
1
2
3
4
METER
S6
354-1111-00
G
1
2
3
4
TONE
S8
354-1111-00
TM1
314-0539-04
TM2
314-0539-04
TM3
314-0539-04
TM4
314-0539-04
TM5
314-0539-04
TM6
314-0539-04
/SCAN0'
/SCAN1'
/RET0'
/RET1'
/RET2'
/RET3'
/SCAN1'
/SCAN0'
/RET1'
/RET2'
/RET3'
/RET1'
/RET2'
/RET3'
/RET0'
1
2
3
4
5
6
7
8
9
10
11
12
13
K1
307-1306-00
1
2
3
4
5
6
7
8
9
10
K4
308-1010-00
/RET3
to from Logic (K3)
from Mother (K17)
from Mother (K18)
to Headphone (K1)
1
2
K5
309-2273-04
S W I T C H A S S ' Y ( 7 1 6 - 0 7 3 0 - 0 0 )
-
2
7
-
1A
1B
2A
2B
3A
3B
4A
4B
5A
5B
6A
6B
7A
7B
8A
8B
9A
9B
10
A
10B
11
A
11B
12
A
12B
13
A
13B
14
A
14B
15
A
15B
16
A
16B
K2
307-3204-00
1A
1B
2A
2B
3A
3B
4A
4B
5A
5B
6A
6B
7A
7B
8A
8B
9A
9B
10A
10B
11A
11B
12A
12B
13A
13B
14A
14B
15A
15B
16A
16B
K3
307-3204-00
ST2
ST0
ST3
ST1
NC
NC
LOUT2
LOUT2
AGND
AGND
RO
U
T
2
RO
U
T
2
+
15VA
+
15VA
AGND
AGND
-15VA
-15VA
DGND
NC
+
12V
NC
+5
V
+5
V
NC
CN
T
2
NC
DGND
+
12V
NC
ST
2
ST
0
ST
3
ST
1
NC
NC
LOUT1
LOUT1
AGND
AGND
ROUT1
ROUT1
+
15VA
+
15VA
AGND
AGND
-15VA
-15VA
MC/MM
DGND
NC
+
12V
NC
+5
V
+5
V
NC
CN
T
2
NC
DGND
+
12V
NC
1
2
3
4
5
10
9
8
7
6
RELAY1
362-1202-00
1
2
3
4
5
10
9
8
7
6
RELAY2
362-1202-00
-15VA
GNDA
+15VA
+5VA
/OP2
+12VD
DGND
/OP1
GNDA
GNDA
SrcL
SrcR
D
2
M
A
165
D
4
MA
165
D1
RD5.1EB1
D6
RD5.1EB1
D5
11E
Q
S10
OPTION1
O
PTION2
MC/MM
MC/MM
MC/MM
MC/MM
100k
R2
100k
R1
to
M
oth
er
K
15
X1
RN1204
X2
RN1204
D3
MA165
D7
MA165
1
2
3
4
5
6
7
8
9
10
11
12
13
14
K1
308-1402-00
/AD_OP
to
I
O
R
el
ay
K1
10
R3
10
R5
10
R4
10
R6
C O N N E C T O R B O A R D A S S ' Y
( 7 1 6 - 0 7 3 5 - 0 0 )
D1
BR1111R-B/C/D/E
LED_1
/LED_A
D2
BR1111R-B/C/D/E
LED_2
/LED_A
D3
BR1111R-B/C/D/E
LED_3
/LED_A
D4
BR1111R-B/C/D/E
LED_4
/LED_A
D5
BR1111R-B/C/D/E
LED_4
/LED_B
D7
BR1111R-B/C/D/E
LED_3
/LED_B
D8
BR1111R-B/C/D/E
LED_2
/LED_B
D6
BR1111R-B/C/D/E
LED_1
/LED_B
LINE2
LINE1
LINE-BAL
CD-BAL
560
R4
560
R1
560
R3
560
R2
CD
TUNER
OP1
OP2
/LED_B
/LED_A
LED_4
LED_1
LED_3
LED_2
to
L
amp
K
1
1
2
3
4
5
6
K1
309-2671-04
( 7 2 3 - 0 1 1 8 - 0 0 )
S E L E C T O R L E D A S S ' Y
LED_LOGO
62
R1
G
4
G
2
O
1
G
5
V
3
IC1
NJL62H380A
47
R2
47u 6.3V
C1
VCC
/RCON
VCC
D1
SDPW3DG0B0-J
from Meter Lamp (K4)
-GR
Q1
2SC2458_
VCC
1k
R3
1.8k
R4
1
2
3
4
K1
308-0407-00
R E C E I V E R A S S ' Y
( 7 2 1 - 0 0 8 2 - 0 0 )
Summary of Contents for E-550
Page 32: ...31 BLOCK DIAGRAM...
