Page 1
D
C
B
A
-15VA
+15VA
654321
JP2
1
0 OHM
D6
1N4148
D5
1N4148
R8
10K
R1
1M
2
R7
120 OHM
1
2
R2
2K67
R3
3K01
R4
4K22
R5
4K22
R6
35K7
Q1
2N4403
3
9
+
8
-
11
+
10
-
5
+
4
-
7
+
6
-
EXPLEDS_CH1
U1D
14
LM339
U1C
13
LM339
U1B
2
LM339
U1A
1
LM339
-15VA
CH1 EXPANDER LEDS
1
JP1
0 OHM
2
D4
D3
D2
D1
+15VA
R20
10K
-2dB
(RED)
-6dB
(RED)
-12dB
(RED)
-18dB
(RED)
+15VA
D16
1N4148
D15
1N4148
R14
10K5
R15
6K49
R16
5K76
R17
5K62
R9
5K62
R10
5K62
R11
8K45
R18
28K0
R12
124K
R19
120 OHM
1
2
11
10
11
10
R13
1M
Q2
2N4403
3
1
2
D12
1
0 OHM
D10
-15VA
JP10
0 OHM
D14
-2dB
(RED)
D13
-4dB
(RED)
-6dB
(RED)
JP6
-10dB
(RED)
-12dB
D9
(RED)
-15dB
D8
(RED)
D7
-25dB
(RED)
-8dB
D11
2
(RED)
LIMLEDS_CH1
U3D
9
+
8
-
+
-
5
+
4
-
7
+
6
-
9
+
8
-
+
-
5
+
4
-
7
+
6
-
14
LM339
U3C
13
LM339
U3B
2
LM339
U3A
1
LM339
U2D
14
LM339
U2C
13
LM339
U2B
2
LM339
U2A
1
LM339
CH1 COMPRESSOR LEDS
JP15
1
0 OHM
D18
1N4148
D17
1N4148
R28
10K
-15VA
+15VA
COMPLEDS_CH1
2
R27
120 OHM
1
3
Q3
2N4403
9
+
8
-
11
+
10
-
5
+
4
-
7
+
6
-
R21
1M
U4D
14
LM339
U4C
13
LM339
U4B
2
LM339
U4A
1
LM339
-15VA
2
R22
8K45
R23
5K90
R24
5K49
R25
5K76
R26
100K0
CH1 LIMITER LEDS
DRAWN:
RELEASED:
1
2
D22
D21
D20
D19
JP16
0 OHM
-3dB
(RED)
-6dB
(RED)
-9dB
(RED)
-12dB
(RED)
DETECT_CH1
DATED:
DATED:
C3
.01uF/25V
R32
10K
-15VA
+15VA
D24
1N4148
D23
1N4148
2
R29
549 OHM
R30
1K21
R33
3K83
R34
12K1
R35
30K1
JP19
1
0 OHM
COMPANY:
TITLE:
DRAWING NO:
REVISION RECORD
REVISIONS DONE OR ECO NUMBER:
VALUE CHANGES IN OUTPUT LED STRING
CHANGES AS PER ECO 425-001
ECO 425-8 SWAPPING LED REF DES.
D40-D43 & D60-D63
CORRECTED P/N AND DWG ERRORS,
CHG’D REV TO CONFORM TO NEW CONVENTION.
-20
LIMLEDS_CH1
(GREEN)
+15VA
-10
(GREEN)
0VU
(GREEN)
CLIP
(RED)
R31
120 OHM
1
Q4
2N4403
3
10
DETECT_CH1
2
8
11
5
4
7
LTR
B
C C4 & C5 ADDED AS PER ECO 169 2/13/92
E
A0
U5D
9
+
-
+
-
+
-
+
6
-
LM339
U5C
LM339
U5B
LM339
U5A
LM339
14
D25
13
D26
2
D27
1
D28
-15VA
CH1 OUTPUT LEDS
SYMETRIX INC.
14926 35th Ave. W.
Lynnwood, WA 98037
425 LED DAUGHTERBOARD
023425
FROM MOTHERBOARD
JP14
1
0 OHM
EXPLEDS_CH1
COMPLEDS_CH1
JP13
1
0 OHM
O/PLEDS_CH1
STEREO
D33
(RED)
DUAL
D32
(RED)
SHEET:
2
2
JP20
1
0 OHM
1
1
2
3
4
5
6
2
8
REV:
OF
12/19/91
J1A
J1B
J1C
J1D
J1E
J1F
DATE:
7/9/92D
8/24/93
B.G.
3/20/95
7
J1G
J1H
A0
4
D
C
B
A
Page 2
D
C
B
A
JP32
1
0 OHM
D39
1N4148
D38
1N4148
R42
10K
D31
1N4148
654321
2
R41
120 OHM
2
R40
3K01
R43
4K22
R44
4K22
R45
35K7
+15VA
1
3
R39
2K67
Q5
2N4403
9
+
8
-
11
+
10
-
5
+
4
-
7
+
6
-
R38
1M
U7D
LM339
U7C
LM339
U7B
LM339
U7A
LM339
EXPLEDS_CH2
D48
1N4148
14
13
2
1
-15VA
CH2 EXPANDER LEDS
LEDBUSS
LEDBUSS
1
JP31
0 OHM
2
D37
(RED)
D36
(RED)
D35
(RED)
D34
(RED)
+15VA
R57
20K0
-2dB
-6dB
-12dB
JP38
1
0 OHM
-18dB
+15VA
COMPLEDS_2
R51
10K5
R52
6K49
R53
5K76
R54
5K62
2
R47
5K62
R48
5K62
R49
8K45
R55
28K0
R46
124K
D50
1N4148
D49
1N4148
2
9
8
11
10
5
4
7
2
6
0 OHM
JP37
9
1
8
11
10
5
4
7
6
R56
120 OHM
LEDBUSS
1N4148
JP43
1
0 OHM
D47
D46
1
0 OHM
(RED)
JP41
1
0 OHM
D43
D42
D53
2
-2dB
(RED)
-4dB
JP46
2
2
(RED)
-12dB
R61
10K
R50
1M
-6dB
D45
D44
-8dB
-10dB
LIMLEDS_CH2
+15VA
1
3
+
-
+
-
+
-
+
-
+
-
+
-
Q6
2N4403
U9D
LM339
U9C
LM339
U9B
LM339
U9A
LM339
U8D
LM339
U8C
LM339
14
13
2
1
14
13
U8B
+
-
+
-
LM339
U8A
LM339
2
1
-15VA
(RED)
-15dB
D41
(RED)
-25dB
D40
(RED)
CH2 COMPRESSOR LEDS
D55
1N4148
D54
1N4148
2
COMPLEDS_CH2
R62
8K45
R64
5K90
R65
5K49
R66
5K76
R67
100K0
R60
120 OHM
1
Q7
2N4403
3
-3dB
U11D
9
+
8
-
11
+
10
-
5
+
4
-
7
+
6
-
R63
CH2 LIMITER LEDS
1M
DRAWN:
RELEASED:
14
LM339
U11C
13
LM339
U11B
2
LM339
U11A
1
LM339
D58
D57
D56
-15VA
JP54
2
0 OHM
(RED)
-9dB
(RED)
-12dB
(RED)
1
D59
-6dB
.01uF/25V
DETECT_CH2
-15VA
C13
+15VA
DATED:
DATED:
D65
1N4148
D64
1N4148
R71
10K
2
R68
549 OHM
R69
1K21
R72
3K83
R73
12K1
R74
30K1
R70
120 OHM
1
Q8
2N4403
3
U12D
9
+
8
-
LM339
U12C
11
+
10
-
LM339
5
+
4
-
LM339
U12A
7
+
6
-
LM339
COMPANY:
TITLE:
DRAWING NO:
EXPLEDS_CH2
JP24
+15VA
2
0 OHM
2
0 OHM
2
2
0 OHM
JP22
JP23
0 OHM
JP25
14
13
COMPLEDS_CH2
-20
D60
(GREEN)
-10
D61
LIMLEDS_CH2
O/PLEDS_CH2
U12B
2
1
D63
-15VA
(GREEN)
D62
(GREEN)
0VU
-15VA
CLIP
(RED)
CH2 OUTPUT LEDS
SYMETRIX INC.
14926 35th Ave. W.
Lynnwood, WA 98037
425 LED DAUGHTERBOARD
023425
9
J1I
10
1
1
1
1
J1J
11
J1K
12
J1L
13
J1M
14
J1N
15
J1O
16
J1P
LEDBUSS
SHEET:
REV:
A0
OF
24
D
C
B
A
Page 3
654321
D
C
B
A
3
12
AGND
U1E
LM339
3
12
U7E
LM339
C1
.1uF/50V
3
12
C2
.1uF/50V
C7
.1uF/50V
3
12
C8
.1uF/50V
AGND
U3E
LM339
U9E
LM339
3
12
3
12
U2E
LM339
U8E
LM339
3
12
AGND
3
12
U4E
LM339
C14
.1uF/50V
U11E
LM339
C12
.1uF/50V
3
12
-15VA
U5E
LM339
3
12
U12E
LM339
+15VA
O/PLEDS_CH2
O/PLEDS_CH1
DRAWN:
RELEASED:
1
R37
20K0
2
1
R59
20K0
JP21
0 OHM
2
0 OHM
JP51
1
2
AGND
AGND
1
R36
20K0
2
2
3
R58
20K0
DATED:
DATED:
2
3
6
5
+
6
5
U6A
+
RC4560
U6B
+
RC4560
U10A
RC4560
U10B
+
RC4560
1
7
1
7
COMPANY:
TITLE:
DRAWING NO:
D29
1N4148
D51
1N4148
C6
8
4
8
4
AGND
.1uF/50V
U6C
RC4560
C5
.1uF/50V
C11
.1uF/50V
U10C
RC4560
C10
.1uF/50V
D30
1N4148
D52
1N4148
+
AGND
+
AGND
C9
3.3/25t
DETECT_CH1
C4
3.3/25t
DETECT_CH2
SYMETRIX INC.
14926 35th Ave. W.
Lynnwood, WA 98037
425 LED DAUGHTERBOARD
023425
AGND
+15VA
-15VA
+15VA
AGND
-15VA
SHEET:
3
REV:
OF
D
C
B
A
A0
4
Page 4
123456
D
C
-15VA
JP57
1
0 OHM
JP55
1
0 OHM
JP49
1
0 OHM
JP44
1
0 OHM
JP27
1
0 OHM
1
0 OHM
1
0 OHM
JP3
JP7
2
2
2
2
2
2
2
-15VA
JP4
1
0 OHM
JP11
1
0 OHM
JP12
1
0 OHM
JP17
1
0 OHM
JP28
1
0 OHM
JP42
1
0 OHM
JP48
1
0 OHM
JP50
1
0 OHM
JP53
1
0 OHM
JP56
1
0 OHM
+15VA +15VA
D
2
2
2
2
2
2
2
2
2
2
JP5
1
0 OHM
JP9
1
0 OHM
JP8
1
0 OHM
JP30
1
0 OHM
JP29
1
0 OHM
1
0 OHM
JP45
1
0 OHM
JP47
1
0 OHM
JP39
1
0 OHM
JP34
2
2
2
2
2
2
2
2
2
LEDBUSS LEDBUSS
1
0 OHM
1
0 OHM
1
0 OHM
1
0 OHM
1
0 OHM
1
0 OHM
2
JP26
2
JP33
2
JP36
2
C
JP40
2
JP35
2
JP52
B
A
JP18
1
0 OHM
2
COMPANY:
SYMETRIX INC.
B
DRAWN:
RELEASED:
DATED:
DATED:
TITLE:
425 LED DAUGHTERBOARD
DRAWING NO:
Lynnwood, WA 98037
023425
14926 35th Ave. W.
SHEET:
REV:
A0
OF
44
A
Loading...