50
7.
Circuit Diagrams and PWB Layouts
Scaler (22"): LINE OUT/HP
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
AR2O
OPAVREF
OPAVREF
AL2O
OPAVREF
HPDET#
HEADPHONE_R
HEADPHONE_L
E
a
rM
u
teB
HP-R
HP-L
OPAVREF
AR1O
OPAVREF
AL1O
HP-L
HP-R
OPAVREF
+5V
OP_PWRH
OP_PWRH
OP_PWRH
DV
33
12V-OP
12V-OP
16V
12V-OP
12V-OP
HPDET#
17
AL2O
10
AR2O
10
LINE_MUTE
17
S
CT1_AUR_OUT 6
S
CT1_AUL_OUT 6
E
a
rM
u
teB
17
OFF_MUTE
17
S
PK_L
17
S
PK_R
17
LINE_MUTE
17
AL1O
10
AR1O
10
1/
3
River
C6
33
C4 R655 B4 C654 A5
R650 B2 C677 C1 FB607 D2
R620 D4 R601 D2 R6
3
2 D4
R665 A5 R671 C4 C647 B4
ZD602 D1 C62
8
D1 R6
8
7 C5
Q609 C4 FB605 B2 C6
8
0 C4
C64
8
B5 R6
3
6 D
3
R649 C4
C6
8
1 C4 Q610 A2 R654 B4
R6
3
4 D
3
R652 B4 R65
3
B5
C656 A
3
R6
83
C4 C625 D4
R61
8
D4 R6
8
1 C4 R645 C
3
R6
8
4 C4 Q601 B2 R6
38
C4
C620 A4 C629 D1 C652 B4
FB606 A2 U602 D
3
R646 C4
C675 C4 C6
8
2 C
3
C651 B4
ZD601 D1 C6
83
C
3
R62
8
A
3
C62
3
D4 R629 D1 C676 C2
C626 D
3
C644 B2 R6
8
2 B4
R642 D4 Q60
8
C4 C6
38
D4
C64
3
C
3
C6
3
9 C5 C674 C4
R661 A5 C657 A4 C6
8
5 B2
R6
3
7 C4 C6
8
6 A2 R664 A
3
C642 C5 R667 A2 R666 A
3
R64
3
D
3
C645 B1 C679 C
3
U70
3
D2 R65
8
B
3
U605 C2
R6
8
6 C5 C640 C
3
R6
3
9 C4
R651 B5 C67
8
B
3
R641 D4
R64
8
C2 FB60
8
D2 C6
3
1 D4
C621 A4 C622 A
3
R662 A4
C6
3
6 D
3
R6
33
D4 R647 C5
C627 D2 U60
3
B
3
FB601 A4
C6
8
4 C2 C650 B
3
C65
8
A4
R659 B2 R672 C4 CN601 D1
R660 A4 C65
3
A4 R66
3
A4
R67
3
B2 U604 C
3
R656 B
3
C655 A4 R6
3
0 D4 C641 C5
C649 B4 C6
3
5 D4 C646 B5
R674 A2 C67
3
D4 R657 B5
C640
10
u
F/10V
C640
10
u
F/10V
R659
1K OHM 1/10W
R659
1K OHM 1/10W
FB606
150 OHM
FB606
150 OHM
A OUT
P
UT
1
A -
INPUT
2
A +INPUT
3
V-
4
B +INPUT
5
B -
INPUT
6
B OUT
P
UT
7
V+
8
U604
NJM45
8
0V
U604
NJM45
8
0V
C65
8
0.0022
u
F
C65
8
0.0022
u
F
R620
47K OHM 1/10W
R620
47K OHM 1/10W
R657
10K OHM 1/10W
R657
10K OHM 1/10W
R6
3
6
100 OHM 1/10W
R6
3
6
100 OHM 1/10W
C64
8
10
u
F/10V
C64
8
10
u
F/10V
+
C67
3
10
u
F/16V
+
C67
3
10
u
F/16V
C652
0.001
u
F
C652
0.001
u
F
R645
100 OHM 1/10W
R645
100 OHM 1/10W
R6
3
7
1K OHM 1/10W
R6
3
7
1K OHM 1/10W
R6
8
1
33
K OHM 1/10W
R6
8
1
33
K OHM 1/10W
FB607
3
00 OHM
FB607
3
00 OHM
R67
3
47K OHM 1/10W
R67
3
47K OHM 1/10W
C62
3
NC
C62
3
NC
R667
1K OHM 1/10W
R667
1K OHM 1/10W
R674
47K OHM 1/10W
R674
47K OHM 1/10W
R6
33
0 OHM 1/10W
R6
33
0 OHM 1/10W
R6
8
6
470 OHM 1/10W
R6
8
6
470 OHM 1/10W
C6
3
1
NC
C6
3
1
NC
R66
3
5.1K OHM 1/10W
R66
3
5.1K OHM 1/10W
C650
10
u
F/10V
C650
10
u
F/10V
+
C677
470
u
F/25V
+
C677
470
u
F/25V
C646
0.0022
u
F
C646
0.0022
u
F
FB60
8
3
00 OHM
FB60
8
3
00 OHM
R650
1K OHM 1/10W
R650
1K OHM 1/10W
R652
33
K OHM 1/10W
R652
33
K OHM 1/10W
+
C6
8
4
10
u
F/25V
+
C6
8
4
10
u
F/25V
GND
2
OUT
3
IN
1
U605
U605
1
2
Z
D
601
VPOR
T
0
60
3
100KV05
Z
D
601
VPOR
T
0
60
3
100KV05
Q60
8
2
S
D1757K
Q60
8
2
S
D1757K
FB601
BEAD
FB601
BEAD
C629
0.0022
u
F
C629
0.0022
u
F
R642
0 OHM 1/10W
R642
0 OHM 1/10W
R62
8
10 OHM 1/10W
R62
8
10 OHM 1/10W
R64
8
1K OHM 1/10W
R64
8
1K OHM 1/10W
R6
8
2
33
K OHM 1/10W
R6
8
2
33
K OHM 1/10W
C642
10
u
F/10V
C642
10
u
F/10V
R641
47K OHM 1/10W
R641
47K OHM 1/10W
C6
8
5
0.1UF16V
C6
8
5
0.1UF16V
C6
3
5
10
u
F/10V
C6
3
5
10
u
F/10V
C654
10
u
F/10V
C654
10
u
F/10V
C65
3
100pF
C65
3
100pF
C6
8
0
10
u
F/10V
C6
8
0
10
u
F/10V
1
2
Z
D
602
VPOR
T
0
60
3
100KV05
Z
D
602
VPOR
T
0
60
3
100KV05
R655
5.1K OHM 1/10W
R655
5.1K OHM 1/10W
R61
8
47K OHM 1/10W
R61
8
47K OHM 1/10W
C620
0.1UF16V
C620
0.1UF16V
R6
3
4
20 OHM 1/10W
R6
3
4
20 OHM 1/10W
FB605
150 OHM
FB605
150 OHM
C651
0.0022
u
F
C651
0.0022
u
F
R6
38
47K OHM 1/10W
R6
38
47K OHM 1/10W
C6
8
2
10
u
F/10V
C6
8
2
10
u
F/10V
R664
10 OHM 1/10W
R664
10 OHM 1/10W
C657
0.001
u
F
C657
0.001
u
F
C644
1
u
F/16V
C644
1
u
F/16V
R65
8
100K OHM 1/10W
R65
8
100K OHM 1/10W
R660
33
K OHM 1/10W
R660
33
K OHM 1/10W
+
C6
3
6
220
u
F/10V
+
C6
3
6
220
u
F/10V
C67
8
100pF
C67
8
100pF
G1
1
S
2
2
G2
3
D2
4
S
1
5
D1
6
U70
3
NDC7002N
U70
3
NDC7002N
C6
8
6
0.1UF16V
C6
8
6
0.1UF16V
C649
10
u
F/10V
C649
10
u
F/10V
1
7
6
2
3
4
5
CN601
PHONEJACK
CN601
PHONEJACK
Q609
2
S
D1757K
Q609
2
S
D1757K
R654
10K OHM 1/10W
R654
10K OHM 1/10W
Q610
2
S
D1757K
Q610
2
S
D1757K
C647
100pF
C647
100pF
C625
10
u
F/10V
C625
10
u
F/10V
+
C626
220
u
F/10V
+
C626
220
u
F/10V
C6
83
10
u
F/10V
C6
83
10
u
F/10V
R661
470 OHM 1/10W
R661
470 OHM 1/10W
R662
10K OHM 1/10W
R662
10K OHM 1/10W
C679
100pF
C679
100pF
A OUT
PUT
1
A -
INPUT
2
A +INPUT
3
V-
4
B +INPUT
5
B -I
NPUT
6
B OUT
PUT
7
V+
8
U60
3
NJM45
8
0V
U60
3
NJM45
8
0V
C645
1
u
F/16V
C645
1
u
F/16V
C627
0.1UF16V
C627
0.1UF16V
C622
0.1
u
F
C622
0.1
u
F
C641
0.0022
u
F
C641
0.0022
u
F
C676
0.1
u
F/25V
C676
0.1
u
F/25V
R671
47K OHM 1/10W
R671
47K OHM 1/10W
R665
10K OHM 1/10W
R665
10K OHM 1/10W
R6
3
0
47K OHM 1/10W
R6
3
0
47K OHM 1/10W
C674
1500pF/16V
C674
1500pF/16V
R6
3
2
47K OHM 1/10W
R6
3
2
47K OHM 1/10W
C6
8
1
10
u
F/10V
C6
8
1
10
u
F/10V
R6
83
5.1K OHM 1/10W
R6
83
5.1K OHM 1/10W
C656
10
u
F/10V
C656
10
u
F/10V
R629
10K OHM 1/10W
R629
10K OHM 1/10W
C675
1500pF/16V
C675
1500pF/16V
R646
10K OHM 1/10W
R646
10K OHM 1/10W
R64
3
20 OHM 1/10W
R64
3
20 OHM 1/10W
C6
3
9
10
u
F/10V
C6
3
9
10
u
F/10V
R672
47K OHM 1/10W
R672
47K OHM 1/10W
+
C621
220
u
F/16V
+
C621
220
u
F/16V
R651
10K OHM 1/10W
R651
10K OHM 1/10W
R666
100K OHM 1/10W
R666
100K OHM 1/10W
C655
10
u
F/10V
C655
10
u
F/10V
R647
10K OHM 1/10W
R647
10K OHM 1/10W
R656
10 OHM 1/10W
R656
10 OHM 1/10W
R601
0 OHM 1/10W
R601
0 OHM 1/10W
C6
33
NC
C6
33
NC
R6
8
7
470 OHM 1/10W
R6
8
7
470 OHM 1/10W
C62
8
0.0022
u
F
C62
8
0.0022
u
F
OUT
1
1
IN
1-
2
IN
1+
3
V
SS
4
IN
2+
5
IN
2-
6
OUT
2
7
VDD
8
U602
PT2
3
0
8
-
S
(L)
U602
PT2
3
0
8
-
S
(L)
Q601
2
S
D1757K
Q601
2
S
D1757K
R65
3
470 OHM 1/10W
R65
3
470 OHM 1/10W
R649
10K OHM 1/10W
R649
10K OHM 1/10W
R6
8
4
5.1K OHM 1/10W
R6
8
4
5.1K OHM 1/10W
C64
3
10
u
F/10V
C64
3
10
u
F/10V
R6
3
9
1K OHM 1/10W
R6
3
9
1K OHM 1/10W
C6
38
NC
C6
38
NC
LINE OUT/HP
S
B14
I_177
8
0_054.ep
s
17040
8