Idling Current Adjustment; Power Amplifier - Onkyo HT-R570 Service Manual

A
SCHEMATIC DIAGRAMS-2(PART-4)
PWOER AMPLIFIER SECTION
1

IDLING CURRENT ADJUSTMENT

1. No load and No signa
2. Connect the dc voltmeter to test points,
using two 100 ohm resistors between the poles of
the jig terminal and the dc voltmeter terminals.
100 ohms
Jig terminal
DC voltmeter (1/4 watt)
2
Power Tr
Driver Tr
TX-SR507 Q6030
HT-R570
TX-SA507
Q6031
HT-R670 OTHER MPP
Q6032
Q6050
MN130S Q6033
Q6051 2SC5198
or 2SC5918
Q6034
Q6052
Q6035
Q6053 Q6036
MN130S
2SC5198
Q6054
or 2SC5918 Q6040
or KTC5242A
Q6055
or KTC5242A Q6041
Q6056
Q6042
Q6060
Q6043
MP130S
2SA1941
Q6061 Q6044
or 2SA1941
Q6062
Q6045
Q6046
Q6063
MP130S
Q6064 2SA1941
or 2SA1941
Q6065 or KTA1962A
or KTA1962A
Q6066
3
VOLH
SEC1H
GND_S1
4
+22V
IPROTECT
VPROTECT
Q6703
Q6702
2SA1163-BL 2SC2712-GR
5
R6701
22K
Q6713
2SA1163-BL
6
(YEW)
7
(GRN)
BAPS-0010
1
P6904B(GRN)
1 AC_S1L-_
AC_S1R-_
1
P6900B(BLK)
TP6905
1
1
P6903B(YEW)
U0012
8
TRANS TERMINAL
PC BOARD
B
BAAF-0008_2/2
Test point
ID+
ID-
2SC5171 or 2SC5993
2SC5171 or KTD2061
2SA1930 or 2SA2140
2SA1930 or KTB1369
Q6701
2SC2712-GR
1
1
R6902
Q6707 1K
2SC2712-GR
+B1H_B1
1
4 1
S1H+
P6903B
(YEW) RL6901
3 2
3 2
P6904B RL6902
(GRN)
S1H- 4 1
1
-B1H_B1
(BLK)
10A 125V
AC_S1L+
1 1 S1L+
2 2
F6901
3
3
4 4
5 5
TP691
F6902
S1L-
AC_S1L-
10A 125V
TP664
TP663
TO BAAF-0008_1/2
PART-3:H8
C
U001 POWER AMPLIFIER PC BOARD
AUDIO ANALOG SIGNAL
FRONT L
FRONT R
<Note> 1. NC = No mount of parts.
2. PART-x : XY is short for Schematic Diagrams-x and each sockets location, X = A to E, Y = 1 to 4.
+B1LL
L
C5010
R5000 R5020
1K 330
47/50
2.2K
R5040
-46.5V[-56.0V]
-B1LL
+B1RR
R
C5011
R5001 R5021
1K 330
47/50
2.2K
R5041
-46.5V[-56.0V]
-B1RR
+B1CC
C
C5012
R5002 R5022
1K 330
47/50
2.2K
R5042
-46.5V[-56.0V]
-B1CC
RED
WHITE
GND
+B1H_B
D10XB60H
D6901
4 1
-B1H_B
D10XB60H
D6903
4 1
MODEL
TX-SR507 / TX-SRT577
HT-R570 / HT-R670
TX-SA507
D
(1/4W)
51.5V
10
+B1L
R5180
+BL
1.1V[1.1V]
50.5V[60.0V]
1.0V[1.0V]
R5030
120K
-0.3V[-0.3V]
0V[0V]
NFL
R5230
-0.65V[-0.65V]
120K
R6040
-0.4V[-0.4V]
2
2K
-BL
1.1V[1.1V]
(1/4W)
10
-B1L
R5190
-51.5V
(1/4W)
51.5V
10
+B1R
R5181
+BR
1.1V[1.1V]
50.5V[60.0V]
1.0V[1.0V]
R5031
120K
-0.3V[-0.3V]
0V[0V]
NFR
R5231
-0.65V[-0.65V]
120K
R6041
-0.4V[-0.4V]
2
2K
-BR
1.1V[1.1V]
(1/4W)
10
-B1R
R5191
-51.5V
(1/4W)
51.5V
10
+B1C
R5182
+BC
1.1V[1.1V]
50.5V[60.0V]
1.0V[1.0V]
R5032
120K
-0.3V[-0.3V]
0V[0V]
NFC
R5232
-0.65V[-0.65V]
120K
R6042
-0.4V[-0.4V]
2
2K
-BC
1.1V[1.1V]
(1/4W)
10
-B1C
-51.5V R5192
P6901A
P6911B
1
P6902A
C6901 C6902
8200uF/63V-MB
8200uF/63V-MA
JL6603A
TO BATRM-0029
PART 7:G1
HT-R570
E
IDLING CURRENT:L/R/C
Test point:TP6080/TP6081/TP6
Adjustment point:R6040/R6041
Adjustment v
after power ON 2.5mV
after 4-6 minutes 9-11mV
52.5V
R6020
2.2
(1/4W)
Q6030
2SC5171
R6080
0.22
(1/4W)
Q6050
NM130S
0.6V[0.6V]
Q
2SC
R6140
56K
P6080
R6100
0.22(3W)
2
ID+
1
ID-
NPLG-2P29
R6090
0.22
(1/4W) Q6060
MP130S
-0.6V[-0.6V]
R6170
47K
R6180
2 1
47K
D6000
KDS4148U
Q6040
2SA1930
-52.5V
52.5V
R6021
2.2
(1/4W)
Q6031
2SC5171
R6081
0.22
(1/4W)
Q6051
NM130S
0.6V[0.6V] Q
2SC
R6141
56K
P6081
R6101
0.22(3W)
2
ID+
1
ID-
NPLG-2P29
R6091
0.22
Q6061
(1/4W)
MP130S
-0.6V[-0.6V]
R6171
47K
2 1 R6181
47K
D6001
KDS4148U
Q6041
2SA1930
-52.5V
52.5V
R6022
2.2
(1/4W)
Q6032
2SC5171
R6082
0.22
(1/4W)
Q6052
NM130S
0.6V[0.6V] Q
2SC
R6142
56K
P6082
R6102
0.22(3W)
2
ID+
1
ID-
NPLG-2P29
R6092
0.22
Q6062
(1/4W)
MP130S
-0.6V[-0.6V]
R6172
47K
2 1 R6182
47K
D6002
KDS4148U
Q6042
2SA1930
-52.5V
TO BAAF-0008_1
PART3:K7
*
E
Table: E
R6133/R6
C6033/C6
J5521,J55