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BALANCE BOARD
JIRA1
R52
IR IN
330
JIRB2
C51
IR OUT1
JIRB1
10n/63V
R51
IR OUT2
0R
RS232
R501 100
1
2
3
R502 100
4
5
6
R53 0R
7
8
DB9
PJ1
C58
0.1uF/50V
+12VOUT
C559
C558
100N
100N
R520
1Meg
R54
C59
10
220N
D518
R524
12V
75
R516
INPUT1
R511
120K
220
C513
XLR
L53
100P
3
3
R517
2
2
120K
C514
R512
220uH X2
100P
220
R525
D519
75
R55
12V
C510
10
220N
R521
1Meg
R522
1Meg
R56
C511
10
220N
D520
R526
12V
75
R518
R514
INPUT2
120K
220
C515
XLR
L54
100P
2
2
R519
3
3
120K
C516
220uH X2
100P
R513
R527
D521
220
75
R57
12V
C512
10
220N
R523
1Meg
REV.
R546 R547 from 10k to 4k7
R554 R555 from 4k7 to 3k3
Q524 Q526 Q527 Q532 from 2SC3324 to KSC2690
R571 R570 from 47 to 82
C556,C557 FROM 100U/16V TO 33U /16V
U52B
U52A
4
3
2
74HCU04
74HCU04
+20VR
U51
R574
5.6K
OPTOISO1
+20VL
D52
C539
R528
1N4148
0.1uF/50V
1K
Q58
C518
2SA1312
22P
C517
Q524
C501
160p
2SC2983
220P
R532
R540
1K
2K21 1%
R559
Q54
2SK209
R558
4k7
C552
C551
4
4
0.1uF/50V
0.1uF/50V
R562
-20VL
C502
49.9
470pF
R530
1
1
2k2
Q55
2SK209
R533
1K
C519
160p
C503
Q526
220P
2SC2983
Q512
C521
C540
R529
2SA1312
22P
0.1uF/50V
1K
D54
1N4148
+20VL
+20VR
D55
C542
R531
1N4148
1K
Q513
0.1uF/50V
2SA1312
C520
22P
C536
Q527
C504
160P
2SC2983
Q56
220P
2SK209
R537
R541
1K
2K21 1%
R561
R560
4k7
C553
C544
1
0.1uF/50V
0.1uF/50V
1
R563
C505
-20VR
470pF
R536
4
4
2k2
Q57
2SK209
C537
R538
160P
1K
C506
Q532
220P
2SC2983
C522
Q517
22P
C543
2SA1312
0.1uF/50V
D511
R535
1N4148
1K
+20VR
DESCRIPTION
VCC
C52
1
0.1uF
Q536
R572
2SC2983
12
Q537
2SC3324
R573
10K
D51
12V
R546
4K7
R542
R543
100
100
L51
Q59
2SA1312
100uH
Q528
Q514
2SC3324
2SA1312
C546
2K2
47p
R564
R566
R567
D56 1N4148
100
470
470
D57 1N4148
D58 1N4148
R551
2K21 1%
R547
4K7
R544
R545
100
100
L52
Q518
2SA1312
100uH
Q519
Q533
2SA1312
2SC3324
C548
2K2
47p
R565
R568
R569
D5121N4148
100
49.9
470
470
D5131N4148
D5141N4148
R553
2K21 1%
2005-4-27
Q507
DTA114
C532
R576
R554
100p
3K
3K
Q510
2SA1312
Q511
D53
1N4148
2SA1312
D59
R570
Q529
1N4148
160
2SC3324
D510
C526
C525
1N4148
33P
33P
R548
R556
Q530
10K
4K7
2SC3324
C534
R534
10uF
1K
C524
33P
C530
47P
R550
2K21
C533
R577
R555
100p
3K
3K
Q520
2SA1312
Q521
D515
D516
2SA1312
1N4148
1N4148
R571
Q534
C529
160
2SC3324
33P
D517
C528
1N4148
33P
Q535
R549
R557
2SC3324
10K
4K7
C535
R539
10uF
1K
C527
33P
C531
47P
R552
2K21
+20VR
CZ501
14
-20VR
13
IRout
12
IR in
11
10
VCC
9
232t
8
232r
7
trigger+
6
trigger-
5
-20VL
4
3
2
+20VL
1
CON12
+20VL
C538
0.1uF/50V
Q525
2SC3324
C556
C554
Q516
0.1u
2SA1312
33U/16V
R580
10K
C541
0.1uF/50V
-20VL
CZ504
1
2
3
4
5
+20VR
6
C550
7
0.1uF/50V
8
CON12
Q531
R581
2SC3324
10K
C557
C555
33U/16V
0.1u
Q523
2SA1312
C545
0.1uF/50V
-20VR
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