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A
B
SCHEMATIC DIAGRAMS-12 / PART-14
POWER AMP SECTION-2
Q Q
3 7 6 3 1 5 1 5 0
NOTE:
PART-15 is used only for TX-SA607.
1
PART-16 and PART-17 are not used for TX-SR607/TX-SA607.
NOTE
!
THE COMPONENTS IDENTIFIED BY MARK
ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
BOLD VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS (
) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/6 WATT UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX)
PRINTING SIDE
"NM" AND "NC" ARE SHORT FOR "NOT MOUNTED" AND "NOT CONNECTED",
2
WHICH MEANS NO PART IS MOUNTED ON WIRING PATTERN OF PCB.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
BACLA-0020
U006
POWER AMP PC BOARD
(DRIVER AMP STAGE)
FRONT L
3
C5010
7
R5000
R5020
8
1.5K
47/50
330
R5040
2.2K
-48.2V
4
T E
L
1 3 9 4 2 2 9 6 5 1 3
SURROUND L
5
C5013
R5023
7
R5003
8
1.5K
47/50
330
R5043
2.2K
-48.2V
6
SURROUND
BACK L
EXCEPT DTR-20.1
R5005
C5015
R5025
7
7
8
330
1.5K
47/50
R5045
2.2K
-48.2V
w w w
8
P5509B
C
D
NOTE:
XY in "SCHEMATIC-a / PART-b:XY" indicates the target
location of the plug or socket, X=A to E/H/K, Y=1 to 4/5/8.
10
(1/4W)
+53.8V
+B1L
R5180
R6020
2.2
+1.1V
(1/4W)
Q6030
+BL
2SC5171
+0.6V
+52.3V
+1.1V
R5030
120K
0V
R5230
-0.65V
120K
Q5030A
IDLING
ADJ.
-0.4V
-0.6V
R6040
-1.1V
2K
-52.9V
-BL
Q6040
-1.1V
2SA1930
(1/4W)
10
-B1L
-53.8V
R5190
(1/4W)
+53.8V
10
+B1SL
R5183
R6023
2.2
(1/4W)
+1.1V
Q6033
+BSL
2SC5171
+52.3V
+0.6V
+1.1V
R5033
120K
0V
-0.65V
R5233
120K
Q5033A
IDLING
ADJ.
-0.4V
R6043
-0.6V
-1.1V
2K
-52.9V
-BSL
Q6043
-1.1V
2SA1930
(1/4W)
10
-B1SL
-53.8V
R5193
(1/4W)
+53.8V
10
+B1SBL
R5185
R6025
2.2
(1/4W)
+1.1V
Q6035
+BSBL
2SC5171
+0.6V
+52.3V
+1.1V
R5035
120K
0V
R5235
-0.65V
120K
Q5035A
IDLING
ADJ.
-0.4V
R6045
-0.6V
-1.1V
2K
-52.9V
-BSBL
Q6045
-1.1V
2SA1930
(1/4W)
10
x
a o
-B1SBL
y
-53.8V
R5195
.
i
http://www.xiaoyu163.com
E
F
G
8
CENTER
C5012
1
R5002
R5022
2
1.5K
47/50
330
R5042
2.2K
-48.2V
FRONT R
NFL
9
+B1L
6
-B1L
5
+BL
4
R5001
C5011
+BL2
3
7
R5021
-BL2
2
8
1.5K
47/50
330
TRIML
1
R5041
2.2K
-48.2V
Q
Q
3
7
6
3
SURROUND R
NFSL
9
+B1SL
6
-B1SL
5
+BSL
4
+BSL2
3
7
R5004
C5014
R5024
-BSL2
2
8
1.5K
47/50
330
TRIMSL
1
R5044
2.2K
-48.2V
SURROUND
BACK R
EXCEPT DTR-20.1
NFSBL
9
+B1SBL
6
-B1SBL
5
+BSBL
4
R5006
C5016
R5026
+BSBL2
3
7
-BSBL2
2
8
1.5K
47/50
330
TRIMSBL
1
R5046
2.2K
-48.2V
u 1 6 3
.
P5507B
H
J
9
2
4
9
10
(1/4W)
+53.8V
+B1C
R5182
R6022
2.2
(1/4W)
Q6032
+BC
+1.1V
2SC5171
+0.6V
+52.3V
+1.1V
R5032
120K
0.0V
R5232
-0.65V
120K
Q5032A
IDLING
ADJ.
-0.4V
-0.6V
R6042
-1.1V
2K
-52.9V
-BC
Q6042
-1.1V
2SA1930
(1/4W)
10
-B1C
-53.8V
R5192
10
(1/4W)
+53.8V
+B1R
R5181
R6021
2.2
(1/4W)
+BR
+1.1V
Q6031
2SC5171
52.3V
+0.6V
+1.1V
R5031
120K
0V
R5231
-0.65V
120K
Q5031A
IDLING
ADJ.
-0.4V
R6041
2K
-0.6V
-1.1V
-52.9V
-BR
Q6041
-1.1V
2SA1930
(1/4W)
10
-B1R
1
5
1
5
0
8
9
2
4
-53.8V
R5191
(1/4W)
10
+53.8V
+B1SR
R5184
R6024
2.2
(1/4W)
+BSR
+1.1V
Q6034
2SC5171
+0.6V
+52.3V
+1.1V
R5034
120K
0V
R5234
-0.65V
120K
Q5034A
IDLING
ADJ.
-0.4V
R6044
2K
-0.6V
-1.1V
-52.9V
-BSR
Q6044
-1.1V
2SA1930
(1/4W)
10
-B1SR
R5194
-53.8V
+53.8V
10
(1/4W)
+B1SBR
R5186
R6026
2.2
(1/4W)
+1.1V
+BSBR
Q6036
2SC5171
+0.6V
+52.3V
+1.1V
R5036
120K
0V
R5236
-0.65V
120K
Q5036A
IDLING
ADJ.
-0.4V
R6046
-0.6V
-1.1V
2K
-52.9V
-BSBR
Q6046
m
-1.1V
2SA1930
(1/4W)
10
c o
-B1SBR
-53.8V
R5196
TX-SR607/SA607/DTR-30.1/20.1/HT-R160
K
L
8
2
9
9
NFC
3
+B1C
7
-B1C
6
+BC
5
+BC2
4
-BC2
3
TRIMC
2
1
NFR
9
+B1R
6
-B1R
5
+BR
4
+BR2
3
-BR2
2
TRIMR
1
9
8
2
9
9
NFSR
9
+B1SR
6
-B1SR
5
+BSR
4
+BSR2
3
-BSR2
2
TRIMSR
1
NFSBR
9
+B1SBR
6
-B1SBR
5
+BSBR
4
+BSBR2
3
-BSBR2
2
TRIMSBR
1
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