Onkyo HT-R390B Serviceanleitung Seite 9

A B
SCHEMATIC DIAGRAMS-5
AMP(INPUT STAGE) SECTION Model No. TX-SR309M2/HT-R390M2
SCHEMATIC DIAGRAM (PART-5)
AMP(input stage) SECTION
1
ADJUSTMENT OF IDLING CURRENT
<Notes>
1. Set R6040, 6041, 6042, 6043, 6044 and 6045 to miniimum position before Power On the unit.
2. Equip series 1/4W 100 ohm resisters near the terminal respectively in the each poles of the jig
used for P6080, 6081, 6082, 6083, 6084 and 6085 terminals.
[Procedure]
L/ R/ C
1. Set the voltages at P6080, 6081 and 6082 to1.5 mV by adjusting R6040, 6041 and 6042, under
the condition of no input and no load, immediately after Power On the unit.
2. Re-adjust by following procedure after 6 minutes of heat running.
L/ R/ C
Below 9 mV 9 mV
Between 9 and 11 mV Leave it as it is.
Over 11mV 11 mV
2
SL/ SR/ SW
3. Set the voltages at P6083, 6084 and 6085 to 1.5 mV by adjusting R6043, 6044 and 6045, under
the condition of no input and no load, immediately after Power On the unit.
4. Re-adjust by following procedure after 6 minutes of heat running.
SL/ SR/ SW SW : HT-R390 Only
Below 6 mV 6 mV
Between 6 and 8 mV Leave it as it is.
Over 8 mV 8 mV
3
4
5
C D
BACLA-1130
CODE MODEL
U0020
T3 TX-SR309M2
H3 HT-R390M2
(1/4W)
53.8V 10
FL
R5180
+BL
T3,H3
1
52.3V
1.1V
R5030
120K
R5000 C5010 R5020
7
8 330 0V
1.5K 47/50 R5230
-0.65V
120K
R5040 Q5030A
IDLING
2.2K
ADJUST
-0.4V
2
R6040
-48.2V
2K
-1.1V
-52.9V
2
-BL
3
(1/4W)
10
-53.8V R5190
(1/4W)
53.8V 10
FR R5181
+BR
T3,H3
1
52.3V
1.1V
R5031
120K
R5001 C5011 R5021
7
0V
8 1.5K 47/50 330 R5231
-0.65V
120K
R5041
Q5031A
IDLING
2.2K
ADJUST
-0.4V
2
-48.2V R6041
2K
-1.1V
-52.9V
2
-BR
3
(1/4W)
10
-53.8V
R5191
(1/4W)
53.8V 10
C
R5182
+BC
T3,H3
1
52.3V
1.1V
R5032
120K
R5002 C5012 R5022
7
0V
8 1.5K 47/50 330
-0.65V R5232
120K
R5042 Q5032A
IDLING
2.2K
ADJUST
-0.4V
2
-48.2V R6042
2K
-1.1V
-52.9V
2
-BC
3
(1/4W)
10
-53.8V R5192
4 3 2 1
P5509B
E F
SL
T3,H3
R5003 C5013
1
2 1.5K 47/50
+B1L
R6020
2.2
1.1V (1/4W)
Q6030
2SC5171
0.6V
NFL 9
+B1L 6
-B1L 5
+BL 4
+BL2 3
-BL2 2
TRIML 1
SR
T3,H3
-0.6V
R5004 C5014
7
Q6040
2SA1930
-1.1V 8 1.5K 47/50
-B1L
+B1R
R6021
2.2
(1/4W)
1.1V Q6031
2SC5171
0.6V
NFR 9
+B1R 6
-B1R 5
+BR 4
+BR2 3
-BR2 2
TRIMR 1
SW
H3
SBL
-0.6V
Q6041 R5005 C5015
7
2SA1930
-1.1V
8 1.5K 47/50
-B1R
+B1C
R6022
2.2
(1/4W)
1.1V
Q6032
2SC5171
0.6V
NFC 9
+B1C 6
-B1C 5
+BC 4
+BC2 3
-BC2 2
TRIMC 1 Not Mount
(SBR)
-0.6V
R5006
C5016
Q6042 7
-1.1V 2SA1930
8 1.5K 47/50
-B1C
4 3 2 1
P5507B
TX-SR309(M2)/ HT-R390(M2)
G H
(1/4W)
53.8V 10
+B1SL
R6023
R5183
2.2
(1/4W)
1.1V Q6033
+BSL
2SC5171
1
52.3V 0.6V
1.1V
R5033
120K
R5023
0V
330 R5233
-0.65V
120K
R5043 Q5033A
IDLING
2.2K
ADJUST
-0.4V
2
-48.2V
R6043
-0.6V
2K
-1.1V
-52.9V
2
-BSL
Q6043
3
2SA1930
-1.1V
(1/4W)
10
-B1SL
-53.8V R5193
(1/4W)
53.8V
10
+B1SR
R5184 R6024
2.2
1.1V (1/4W)
+BSR Q6034
2SC5171
1
0.6V
52.3V
1.1V
R5034
120K
R5024
0V
330 R5234
-0.65V
120K
R5044
Q5034A
IDLING
2.2K
ADJUST
-0.4V
2
R6044
-48.2V
2K -0.6V
-1.1V
-52.9V
2
-BSR Q6044
3
2SA1930
-1.1V
(1/4W)
10
-B1SR
-53.8V R5194
(1/4W)
53.8V 10
+B1SBL
R6025
R5185
2.2
(1/4W)
1.1V
+BSBL Q6035
2SC5171
1
52.3V 0.6V
1.1V
R5035
120K
R5025
0V
330 R5235
-0.65V
120K
R5045 Q5035A
2.2K IDLING
ADJUST
-0.4V
2
-48.2V R6045
-0.6V
2K
-1.1V
-52.9V
2
-BSBL
Q6045
3
-1.1V 2SA1930
(1/4W)
10
-B1SBL
-53.8V R5195
(1/4W)
53.8V 10
+B1SBR
R6026
R5186
2.2
(1/4W)
1.1V Q6036
+BSBR
2SC5171
1
52.3V 0.6V
1.1V
R5036
120K
R5026
330 0V
R5236
-0.65V
120K
R5046 Q5036A
2.2K
-0.4V
2
-48.2V R6046
2K -0.6V
-1.1V
-52.9V
2
-BSBR
Q6046
3
2SA1930
-1.1V
(1/4W)
10
-B1SBR
-53.8V R5196
NFSL 3
+B1SL 7
-B1SL 6
+BSL 5
+BSL2 4
-BSL2 3
TRIMSL 2
1
NFSR 9
+B1SR 6
-B1SR 5
+BSR 4
+BSR2 3
-BSR2 2
TRIMSR 1
NFSBL 9
+B1SBL 6
-B1SBL 5
+BSBL 4
+BSBL2 3
-BSBL2 2
TRIMSBL 1
NFSBR 9
+B1SBR 6
-B1SBR 5
+BSBR 4
+BSBR2 3
-BSBR2 2
TRIMSBR 1