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ADJUSTMENT PROCEDURE-2
IDLING CURRENT ADJUSTMENT
<Fig-1>
U01
AMPLIFIER PC BOARD
(NAAMP-9477)
ID+
SR
ID-
P6084
Trimming
Test
resistor
point
R6044
B
C
E
Q6016
B
C
E
B
C
E
Q6014
Q6056
Q6066
Q6054
J6074
J6080
J6082
12
25
10
J6076
J6079
10
J6077
J6083
12
25
J6073
J6081
30
J6078
J6075
30
R6106
R6104
J6042
ID+
P6086
R6294
L6006
ID-
R6254
J6045
R6274
Q6106
R6284
R6074
Q6116
R6086
Q6104
BIAS
BIAS
R6056
R6296
R6256
P6006B
P6004B
R6054
R6276
R6286
R6076
SBR
Q6076
SR
C6056
C6706
J6020
7
NCAMP-9477
25139477B
JL6606B
JL6402B
ID+
ID-
P6086
Test
SBR
point
R6046
Trimming
resistor
R
Test
point
P6081
Trimming
Trimming
ID+
resistor
resistor
ID-
R6041
R6042
B
C
E
B
C
E
B
C
E
B
Q6011
Q6064
Q6051
Q6061
J6092
J6089
J6091
25
10
25
J6085
J6088
J6095
27
7
27
10
J6093
J6086
J6096
10
25
12
J6087
J6097
J6090
30
7
27
J6084
J6094
P6901B
30
15
R6101
J6044
J6048
J6050
25
12
25
R6094
ID+
J6053
25
L6001
J6049
R6091
Q6101
Q6111
ID-
P6084
L6002
Q6114
L6011
7
7
J6047
J6052
ID+
ID-
P6081
BIAS
R6291
E5507A
P6001B
R6251
R6271
R6281
R6071
R
?
?
2
C6901
RED
P6901A
Test
C
L
point
P6082
Trimming
ID+
resistor
ID-
R6040
C
E
B
C
E
B
C
E
Q6010
B
Q6012
Q6052
Q6062
Q6050
J6102
J6106
J6107
10
25
25
10
J6099
P6902B
J6103
J6112
27
25
7
J6104
J6098
J6111
7
25
25
J6105
J6101
J6108
30
7
J6100
R6102
J6109
J6110
17
27
10
J6060
J6055
J6063
7
20
J6054
J6059
J6062
20
7
JL6600A
J6056
J6061
R6092
Q6100
Q6110
Q6102
Q6112
L6012
J6058
7
C6022
ID+
ID-
BIAS
R6292
R6252
R6050
P6000B
P6002B
E5509A
R6272
BIAS
R6282
R6072
C
Q6072
C6052
C6051
L
P5510A
JL6620A
P5510C
7
J6128
JL6603A
C6902
BLUE
P6900B
D6901
P6902A
R6197
TX-SR806/SA806
SL
ID+
ID-
P6080
P6083
Trimming
Test
resistor
point
R6043
C
E
B
C
E
B
C
E
B
C
Q6013
Q6060
Q6053
Q6063
Q6055
J6116
J6119
J6124
10
27
J6114
J6122
J6127
30
30
7
J6121
J6113
J6126
30
30
10
J6117
J6123
J6118
27
7
30
7
R6103
J6120
J6115
25
22
R6100
P6083
J6066
L6005
25
25
27
P6080
ID+
ID+
R6090
ID-
ID-
Q6105
Q6103
Q6113
L6010
7
J6065
C6020
BIAS
BIAS
R6055
R6053
P6005B
R6293
R6253
R6273
SL
P6003B
R6283
R6073
SBL
R6290
R6250
C6050
R6270
R6280
R6070
J6019
30
J6018
30
+
-
+
-
AC
AC
30
30
J6008
D6903
J6010
30
30
J6007
J6009
10
J6014
C6912
15
J6013
P6950
C6913
J6012
15
J6011
15
J6004
30
C6915
J6006
15
J6005
15
C6916
JL5514A
SBL
Trimming
resistor
R6045
ID+
ID-
Test
point
E
B
C
E
Q6015
Q6065
12
R6105
J6125
P6085
ID+
ID-
Q6115
R6295
R6255
R6275
R6285
R6075
Q6075
C6055
J6129
7
15A 250V
ID+
ID-
P6085
Test
point
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