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ADJUSTMENT PROCEDURES
IDLING CURRENT ADJUSTMENT
[Note] No load and No signal
Refer to Fig-1 about test points and adjustment points.
1. Before Idling adjustment, turn the trimming resistors R6040, R6041, R6042, R6043 and R6044 to counter clockwise.
2. Connect the DC voltmeter to test point P6080,P6081, P6082, P6083 and P6084.
Connect 100-ohm resistance near the terminal of the two poles of a Jig terminal.
DC voltmeter
3. Connect the AC power supply cord to wall outlet.
4. Press the STANDBY/ON button into the power ON state.
5. Adjust the trimming resistors as following procedure immediately after a power ON.
Trimming resistor
(Adjustment point)
R6040
R6041
R6042
R6043
R6044
6. Wait for 4 - 5 minutes. (Heat raining)
7. Re-adjust the trimming resistors as following procedure.
Adjustment point
R6040, R6041, R6042
R6043, R6044
8. Disconnect the DC voltmeter.
9. Press the STANDBY/ON button into the power OFF state.
10. Disconnect the AC power supply cord.
L
Trimming
Test
resistor
point
R6040
P6080
BIAS
Fig-1
Resistor
100 ohms
Jig terminal
1/4watts
Test point
Adjustment value
(Measuring point)
P6080
2.5 mV
P6081
2.5 mV
P6082
2.5 mV
P6083
1.5 mV
P6084
1.5 mV
Measured value
In case below 7 mV
In case 7 - 9 mV
In case over 9 mV
In case below 4 mV
In case 4 - 6 mV
In case over 6 mV
R
Trimming
Test
Trimming
resistor
point
resistor
R6041
P6081
R6042
BIAS
BIAS
J6056
J6111
E
B
E
B
B
C
E
B
C
E
B
C
E
B
C
E
J6016
Q6010
Q6011
Q6050
Q6060
Q6051
Q6061
+B1
1 2
R6090
R6091
-B1
J6015
J6038
J6057
J6075
J6097
2
1
0
2
2
1
0
2
J010A
J011A
J6036
J6052
J6094
J6106
3 0
1 2
3 0
1 2
R6510
J6037
J6053
J6095
J6107
3 0
1 2
3 0
1 2
J6014
J6035
J6073
J6093
J6110
C6510
1 2
1 7
2 5
1 7
2 5
J6032
J6051
J6090
J6096
2 5
2 5
R6511
R6521
D6010
R6100
R6190
R6101
R6191
J6030
J6031
J6074
J6089
LSP
2 0
7
1
2 5
7
1
J6012
J6033
J6054
J6091
RSP
2
2
0
2
2
2
0
2
J6013
J6034
J6055
J6092
CSP
2
2
0
2
2
2
0
2
J6009
J6029
J6049
J6087
LSSP
2
2
0
2
2
2
0
2
J6027
J6071
RSSP
2
1
0
3
2
1
0
3
J6050
J6010
Q6020
Q6021
E
E
R6080
R6081
B
B
R6140
R6141
BIAS
BIAS
R6040
P6080
R6041
P6081
R6010
R6011
7
7
J6028
J6072
R6000
R6001
R6030
R6050
R6031
R6051
JL6402A
P6011
+24V
P6000
P6001
R
L
R6701
TH1
C6230
+24V
J6047
R6308
2
2
J6086
J6045
C6231
R6232
7
2
J6070
2 2
P6301
C6232
J6068
TH1
2
1
J6069
C6233
2 0
C6234
P6903
LSPE
RSPE
COM
CSPE
LSSPE
RSSPE
J010
R6604
C6901
C6902
J6005
R6605
J6006
Q6603
B
E
J011
R6603
Q6602
B
E
C6901
C6902
J6084
R6602
7
J6085
7
Q6601
B
E
R6601
J6043
J6024
J6080
2 7
0
2
J6025
J6081
3 0
7
1
J6064
3 0
3 0
J6065
J6083
J6020
+24V
7
1
5
2
D6903
D6904
R6904
J6002
RL6902
RL6901
J6098
CSRLD
7
2
J6003
FRLD
C6909
BRLD
RL6901
RL6902
2 7
J6059
R6905
J6078
5
1
5
2
J6017
J6039
5
2
J6040
P996A
0
3
J6018
J6001
0
2
J6019
0
3
P6909
P995B
P997A
D6706
P6910
P6907
C6708
D6705
P931
Test point
ID+
ID-
Channel
L
R
C
SL
SR
Adjustment value
Channel
7 mV
L, R, C
Leave it as it is
9 mV
4 mV
SL, SR
Leave it as it is
6 mV
LS
C
Test
Trimming
point
resistor
P6082
R6043
P6083
BIAS
J6132
J6154
E
B
E
B
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
Q6012
Q6013
Q6014
Q6052
Q6062
Q6053
Q6063
Q6054
J6112
R6092
R6093
J6155
R6094
J6113
J6125
J6133
J6139
J6140
J6156
2
1
0
2
2
1
0
2
2
1
J6123
J6129
J6145
J6150
3 0
1 2
3 0
1 2
3 0
J6124
J6130
J6146
J6151
3 0
1 2
3 0
1 2
3 0
J6122
J6136
J6144
J6153
J6163
1 7
2 5
1 7
2 5
1 7
J6120
J6128
J6142
J6147
J6162
2 5
2 5
2 5
R6512
R6522
D6011
D6012
D6013
R6102
R6192
R6103
R6193
R6104
J6118
J6119
J6137
J6138
J6159
2 5
7
1
2 5
7
1
2 5
J6108
J6121
J6131
J6143
J6152
2
2
0
2
2
2
0
2
2
2
J6109
2
2
J6126
J6104
J6116
2
2
0
2
2
2
J6114
J6134
J6149
2
1
0
3
2
1
0
3
2
1
J6105
J6127
J6148
Q6022
Q6023
Q6024
E
E
R6082
R6083
R6084
B
B
R6142
R6143
BIAS
BIAS
BIAS
R6042
P6082
R6043
P6083
R6044
R6012
R6013
R6014
7
7
J6115
J6135
R6002
R6003
R6004
R6032
R6052
R6033
R6053
R6034
R6054
P6002
P6003
P6004
C
LS
RS
P6072A
NCAF-7875
1
25137875A
U17
POWER AMPLIFIER PCB ASSY
(NAAF-7875)
TX-SR402/8240/HT-R420
RS
Test
Trimming
Test
point
resistor
point
R6044
P6084
BIAS
B
B
C
E
Q6064
J6165
-B1
J6168
C6523
J6166
J6164
+B1
HPL
C6513
2
1
HPR
AGND
J6169
D6014
+24V
R6194
J6161
MPUGND
7
1
MPUGND
J6160
5
1
VOLH
R6851
SE1H
SPB
5
1
SPCS
Front side
SPF
PRO
E
POWER
+13VS
B
RLGND
P6084
7
R6144
J6157
J6170
1 7
P6073A
P6908
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