Idling Current Adjustment - Onkyo HT-RC260 Service Manual

A B
SCHEMATIC DIAGRAMS-5 Q Q
3 7 6 3 1 5 1 5 0
MAIN AMP (Input Stage) SECTION

IDLING CURRENT ADJUSTMENT

1
a. Set the voltages at P6080 6086 to 1.5mV by adjusting R6040 6046, under the condition of
no input and no load, immediately after POWER ON.
c. 4 6 minutes of heat running.
d. Re-adjust by following procedure.
Below
Between 7 8mV
Between 8 10mV
Over
*Set R6040 6046 to minimum position before POWER ON.
*Equip series 1/4W 100-ohm resisters near the terminal respectively
2
in the each poles of the jig used for P6080-6086 terminals.
DC voltmeter
U0020
AMP. (INPUT) PC BOARD BACLA-0362
3
FRONT(L) CH
7
8
4
T E
L 1 3 9 4 2 2 9 6 5 1 3
SURROUND
(L) CH
5
7
8
6
SURROUND
BACK(L) CH
EXCEPT
: DTR-20.2
7
8
7
w w w
4 3 2 1
P6007A
8
TX-SA608/ TX-SR608/ HT-RC260/ DTR-20.2/ DTR-30.2
C D
All
7mV Return to 'c' ,after it adjusted to 7mV.
8mV
Leave it as it is.
10mV 10mV
100 ohms
Jig terminal Test point
(1/4 watt)
ID+
ID-
R5180
63.9V[56.6V]
10
(1/4W)
52.3V
+BL
1
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5000 C5010 R5020 R5030
0V
330 33K
1.5K 47/50
-61.3V[-54.0V]
-0.4V
-0.9V
R5040
-0.5V
1K 2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
R5190
(1/4W)
-63.9V[-56.6V] 10
R5183
63.9V[56.6V]
10
(1/4W)
52.3V
+BSL
1
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5003 C5013 R5023 R5033 33K
0V
330
1.5K 47/50
-61.3V[-54.0V]
-0.4V
-0.9V
R5043
-0.5V
1K 2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
R5193
(1/4W)
-63.9V[-56.6V] 10
R5185
63.9V[56.6V]
10
(1/4W)
52.3V
+BSBL
1
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5005 C5015 R5025 R5035
0V
330
1.5K 47/50 33K
-61.3V[-54.0V]
-0.4V
-0.9V
R5045
-0.5V
1K 2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
R5195
-63.9V[-56.6V] 10 (1/4W)
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E F G
CENTER CH
63.9V[56.6V]
R5002 C5012 R5022
7
8 1.5K 330
47/50
R5042
1K
-63.9V[-56.6V]
FRONT(R) CH
+B1L 63.9V[56.6V]
R5420
10
L5400 NFL 9
(1/4W)
+B1L 6
R5350 R5480
0.6V -B1L 5
18 10 +BL 4
(1/4W)
R5001 C5011 R5021
+BL2 3 7
-BL2 2 8 330
1.5K 47/50
TRIML 1
R5360 R5490
-0.6V R5041
18 10
(1/4W)
1K
L5410
Q Q
3 7 6
-B1L
-63.9V[-56.6V]
SURROUND
+B1SL 63.9V[56.6V]
(R) CH
R5423
10
NFSL 9
(1/4W) L5403
+B1SL 6
R5353 R5483
0.6V -B1SL 5
18 10 +BSL 4
(1/4W)
R5004 C5014 R5024
+BSL2 3 7
-BSL2 2 8 330
1.5K 47/50
TRIMSL 1
R5363 R5493
-0.6V R5044
18 10
(1/4W)
1K
L5413
-B1SL
-63.9V[-56.6V]
SURROUND
+B1SBL 63.9V[56.6V]
BACK(R) CH
R5425
EXCEPT
10
NFSBL 9
(1/4W) L5405
: DTR-20.2
+B1SBL 6
R5355 R5485
0.6V -B1SBL 5
18 10 +BSBL 4
(1/4W) R5006 C5016 R5026
+BSBL2 3 7
-BSBL2 2 8 330
1.5K 47/50
TRIMSBL 1
R5365 R5495
-0.6V R5046
18 10
(1/4W)
1K
L5415
-B1SBL
-63.9V[-56.6V]
4 3 2 1
P6008A
u 1 6 3
.
http://www.xiaoyu163.com
TX-SA608/ TX-SR608/ HT-RC260/ DTR-20.2/ DTR-30.2
H I
2 4
8 9 9
R5182
+B1C
10
(1/4W)
52.3V
R5422
+BC
1
10
(1/4W)
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5352
18
(1/4W)
R5032 33K
0V
-61.3V[-54.0V]
-0.4V
R5362
-0.9V
18
-0.5V (1/4W)
2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
R5192
-B1C
(1/4W)
10
R5181
+B1R
10
(1/4W)
52.3V
R5421
+BR
1
10
(1/4W)
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5351
18
(1/4W)
R5031
0V
33K
-61.3V[-54.0V]
-0.4V
-0.9V R5361
18
-0.5V (1/4W)
2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
3 1 5 1 5 0 8 9 2
R5191
-B1R
10 (1/4W)
R5184
+B1SR
10
(1/4W)
52.3V
R5424
+BSR
1
10
(1/4W)
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5354
18
(1/4W)
R5034 33K
0V
-61.3V[-54.0V]
-0.4V
-0.9V R5364
18
-0.5V (1/4W)
2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
R5194
-B1SR
(1/4W)
10
R5186
+B1SBR
10
(1/4W)
52.3V
R5426
+BSBR
1
10
(1/4W)
1.2V
62.1V[54.8V]
-62.4V[-55.1V]
R5356
18
R5036 33K (1/4W)
0V
-61.3V[-54.0V]
-0.4V
-0.9V R5366
18
-0.5V
(1/4W)
2
-48.2V
-1.2V
-62.7V[-55.5V]
2
3
R5196
-B1SBR
m
10 (1/4W)
c o
J K
2
8 9 9
L5402 NFC 9
+B1C 6
R5482
0.6V -B1C 5
10
+BC 4
+BC2 3
-BC2 2
TRIMC 1
R5492
-0.6V
10
L5412
L5401 NFR 9
+B1R 6
R5481
0.6V -B1R 5
10 +BR 4
+BR2 3
-BR2 2
TRIMR 1
R5491
-0.6V
10
L5411
4 9 8 2 9 9
NFSR 9
L5404
+B1SR 6
R5484
0.6V -B1SR 5
10 +BSR 4
+BSR2 3
-BSR2 2
TRIMSR 1
R5494
-0.6V
10
L5414
NFSBR 9
L5406
+B1SBR 6
R5486
0.6V -B1SBR 5
10 +BSBR 4
+BSBR2 3
-BSBR2 2
TRIMSBR 1
R5496
-0.6V
10
L5416
BACLA-0362