EN-31
ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No. DESCRIPTION OF CHANGE
L281 CT6 BL Channel.SchDoc
AMP019 Amp BL
Contact Engineer:
L281CT
15/01/2021
INITIALS
Printed:
6 10Sheet of
Notes:
Contact Tel: 01223 203201Jon Henderson
A & R Cambridge Ltd.
Cambridge CB25 9QE
Waterbeach
A3
ARCAM
AGND
Op Amp Decoupling
50V
C5043
100N
50V
C5044
100N
50V
C5046
100N
50V
C5047
100N
50V
C5042
10UF
50V
C5045
10UF
+14V
-14V
P5121
LIN
RV5000
1K
AGND
AGND
TR5005
BC856B
100V
C5014
82P
AGND
TR5023
BC846B
100V
C5030
82P
TR5002
2SC2690A
TR5021
KSA1220A
TR5001
MMBTA42L
TR5024
MMBTA92L
0W125
R5028
33R
0W125
R5096
33R
0W125
R5043
560R
0W125
R5073
560R
0W125
R5030
10R
0W125
R5110
22R
0W125
R5011
22R
GND_B
GND_B
TR5003
2SC2690A
TR5018
KSA1220A
D5006
S1D
D5010
S1D
63V
C5008
22UF
63V
C5033
22UF
100V
C5005
1uF
GND_A
100V
C5032
1uF
GND_A
+VLIFT
-VLIFT
2W
R5055
0.18R
2W
R5065
0.18R
2W
R5064
0.18R
2W
R5054
0.18R
2W
R5053
0.18R
2W
R5063
0.18R
+Input BL
-Input BL
0W5
R5035
1R0
2
3
1
84
IC5000A
OPA1652AIDR
AGND
-14V
+14V
0W063
R5004
10K
AGND
D5000
BAV99
ERR +VE
ERR -VE
100V
C5001
470N
20C/W
HS5000A
5400-9130+0
20C/W
HS5001A
5400-9130+0
TR5014A
NJL1302DG
TR5014B
NJL1302DG
0W5
R5086
1R0
2W
R5075
3R3
0W125
R5068
100K
1206
FS5000
7.0A
1206
FS5001
7.0A
GND_BL
1 2
8mm
J5000
LINK
12
8mm
J5002
LINK
12
8mm
J5003
LINK
1 2
8mm
J5004
LINK
12
8mm
J5005
LINK
12
8mm
J5007
LINK
1 2
8mm
J5001
LINK
12
8mm
J5006
LINK
-BL Input
NF
AGND
P5065
P5059
P5074
P5066 P5067
P5055 P5056
P5041
P5017
P5047
P5064
P5092
P5044
P5029
P5060
P5032
P5042
P5026
P5048
P5024
P5046
P5099
P5061
P5100
P5080P5079
P5073
P5105
P5096
P5109
P5115P5114
P5107 P5108
P5098
P5116
P5118
P5002
P5011
P5005
P5006
P5001
P5004
P5010P5016
P5063
P5078
P5015
P5023
P5037
P5020
P5018
P5013
P5014
P5019
P5028
P5049
P5030
P5025
P5057
P5027
P5022
P5031
P5040
P5043
P5050
P5072
P5076
P5090
P5089
P5085
P5088
P5036
P5039
P5054
P5095
P5091
P5103
P5102
P5086
P5094
P5101
P5077
P5110
P5113
P5097
P5068
P5104
P5058
P5093
100V
C5024
100N
100V
C5020
100N
FILM
-BL Input
Out BL
Out BL
1
2
M20-973
CON5000
HARWIN
SHORT BL
SHORT BL
TR5000
MMBTA42L
25V
C5000
1uF
P5000
P5003
P5008
Bias measurement
ERR +VE
ERR -VE
BIAS BL+
BIAS BL-
BIAS BL+
BIAS BL-
D5003
NSR1020
D5012
NSR1020
-14V
+14V
D5004
NSR1020
+14V
50V
C5007
100N
AGND
50V
C5012
100N
5V6
DZ5000
BZX84C
0W125
R5041
220K
AGND
+14V
-14V
50V
C5037
100N
5V6
DZ5003
BZX84C
25V
C5035
1UF
25V
C5013
1UF
-14V
+14V
AGND
AGND
P5083
+BL Input
+BL Input
5
34
TR5010B
BC846BD
2
61
TR5010A
BC846BD
2
61
TR5012A
BC846BD
5
34
TR5012B
BC846BD
2
61
TR5022A
BC846BD
2
61
TR5020A
BC846BD
43
5
TR5004A
BC856BD
43
5
TR5007A
BC856BD
16
2
TR5016B
BC856BD
43
5
TR5016A
BC856BD
43
5
TR5019A
BC856BD
16
2
TR5019B
BC856BD
16
2
TR5004B
BC856BD
5
34
TR5020B
BC846BD
5
34
TR5022B
BC846BD
16
2
TR5007B
BC856BD
100V
C5009
1N0
AGND
-14V
AGND
0W125
R5099
220K
AGND
TR5017
KSC3503
TR5011
KSA1381
GND_C
P5009
P5007
P5012
0W25
R5005
68R
PLD
PLD
P5021
GND_C
P5119
P5120
P5117
0W25
R5117
68R
P5106
TR5009
BC846B
TR5008
BC856B
TR5015
BC846B
TR5013
BC856B
50V
C5021
10UF
50V
C5018
10UF
0W25
R5036
12K
0W25
R5088
12K
0W25
R5034
12K
0W25
R5090
12K
D5005
BAS21LT1
D5009
BAS21LT1
P5082
P5081
P5087 P5033
P5034
P5051
P5069
P5045
P5075
P5070
P5053
P5052
P5071
P5038
P5084
27V
DZ5001
GLZ
27V
DZ5002
GLZ
D5007 BAV199D5008 BAV199
100V
C5002
220UF
100V
C5039
220UF
0W1
0.10%
R5059
1K0
0W1
0.10%
R5089
1K0
50V
C5016
470P
50V
C5026
470P
D5001
NSR1020
D5014
NSR1020
0W25
R5046
68R
0W25
R5069
68R
NF
NF
NF
50V
C5010
22N
50V
C5029
22N
100V
C5019
150P
100V
C5028
150P
100V
C5017
33P
100V
C5027
33P
D5013
NSR1020
-55V
+55V
RED LED5001
0603
RED LED5000
0603
0W063
R5071
68R
0W063
R5072
68R
0W063
R5098
1K5
0W063
R5017
1K5
0W063
R5008
5K1
0W063
R5003
3M3
0W063
R5012
20K
0W063
R5066
15K
50V
C5015
100N
0W063
R5108
360R
50V
C5038
100N
0W063
R5100
4K7
50V
C5040
1N0
0W063
R5114
1K5
50V
C5031
100N
0W063
R5074
1K5
0W063
R5083
68R
0W063
R5084
68R
0W063
R5039
4K7
0W125
R5094
6K8
0W125
R5060
6K8
0W063
R5109
1K5
0W063
R5107
68R
0W063
R5112
1K0
0W063
R5116
47R
0W063
R5111
100R
100V
C5041
1uF
50V
C5034
1N0
AGND
0W063
R5070
0R0
0W063
R5057
0R0
0W063
R5058
0R0
0W063
R5026
1K0
0W063
R5032
68R
0W063
R5027
47R
0W125
R5097
10K
0W125
R5040
10K
0W063
R5031
100R
100V
C5006
1uF
AGND
50V
C5011
1N0
NF
NF
0W063
R5015
10R
0W063
R5105
10R
0W063
R5048
220R
NF
0W063
R5016
10R
0W063
R5106
10R
100V
C5036
220N
100V
C5004
220N
0W063
R5029
220R
0W063
R5093
220R
0W063
R5101
3K3
0W063
R5019
3K3
0W063
R5047
0R0
0W063
R5050
0R0
0W063
R5033
1K0
0W063
R5085
1K0
0W063
R5044
430R
0W063
R5076
430R
0W063
R5045
2K7
0W063
R5077
2K7
0W063
R5001
10K
0W063
R5000
4K7
0W063
R5038
330R
0W063
R5079
330R
0W25
R5067
2K7
0W25
R5080
2K7
0W063
R5025
1K5
0W063
R5095
20R
TH5001100R@ 25C
TH5000
47k@25C
TH5002
47k@25C
NF
NF
NF
NF
NFNF
NF
0W5
R5024
0R47
0W5
R5023
0R47
1W
R5006
47R
1W
R5102
47R
1W
R5037
1K5
1W
R5091
1K5
6
5
7
IC5000B
OPA1652AIDR
AGND
100V
C5003
22P
TR5006A
NJL3281DG
TR5006B
NJL3281DG
AGND
0W063
R5002
1K0
0W063
R5007
1K0
P5129
P5062
P5111
P5112
P5125
P5130
P5127 P5128
P5136
P5133
P5132
P5134
P5135
P5137 P5138
P5131
P5122 P5123
P5124
P5126
P5140
P5139
P5035
NLD
NLD
TR5026
MMBTA92L
0W125
R5118
47K
-55V
+55V
TR5025
MMBTA42L
+55V
0W125
R5103
47K
-55V
0W063
R5020
47R
0W063
R5104
47R
D5002
BAS21HT1G
D5011
BAS21HT1G
50V
C5023
22UF
2
3
1
84
IC5001A
LM4562MA
6
5
7
IC5001B
LM4562MA
0W125
Thin Film
R5013
15K
0W125
Thin Film
R5014
15K
0W063
R5021
270R
0W063
R5022
3K3
100V
C5022
22P
100V
C5025
22P
0W063
R5081
180R
0W063
R5049
10R
18_E048 PK 28/11/18 F.0Amplifier improvements
0W063
R5113
360R
19_E007 JH 11/02/2019 G.0Rx113 changed to 360R
NF
NF
NF
NF
0W063
R5051
4R7
0W063
R5061
4R7
0W063
R5052
330R
0W063
R5062
330R
0W125
R5082
220K
0W125
Thin Film
R5010
10K
0W125
R5092
4R7
19_E027 PK 20/05/19 1.0Value changes protection and compensation
0W1
0.10%
R5009
30K
0W1
0.10%
R5056
3K0
0W1
0.10%
R5087
3K0
0W1 0.10%
R5042
2K0
0W1 0.10%
R5078
2K0
0W063
R5115
8K2
0W063
R5018
8K2
20_E002 PK 06/01/20 2.0PCB change only
21_E001 PK 12/01/21 3.0No change to this sheet
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