Integra DTR-30.1 Service Manual page 40

A
SCHEMATIC DIAGRAMS-12 / PART-14
POWER AMP SECTION-2
QQ
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
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 (
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)
"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)
3
4
T E
L 1 3 9 4 2 2 9 6 5 1 3
5
6
7
www
8
.
P5509B
http://www.xiaoyu163.com
B
!
ARE CRITICAL FOR SAFETY.
) ARE IN uF/WV.
PRINTING SIDE
FRONT L
C5010
R5000 R5020
7
8
1.5K 47/50 330
-0.65V
R5040
2.2K
-48.2V
SURROUND L
C5013 R5023
R5003
7
8
1.5K 47/50 330
-0.65V
R5043
2.2K
-48.2V
SURROUND
BACK L
EXCEPT DTR-20.1
R5005 C5015 R5025
7
8
330
1.5K 47/50
-0.65V
R5045
2.2K
-48.2V
x a o u 1 6 3
y
i
C
8 9
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
+53.8V
R5180
+52.3V
+1.1V
R5030
120K
0V
R5230
120K
Q5030A
-1.1V
-52.9V
(1/4W)
10
Q Q
3 7 6 3 1 5 1
-53.8V R5190
10
+53.8V
R5183
+52.3V
+1.1V
R5033
120K
0V
R5233
120K
Q5033A
-1.1V
-52.9V
(1/4W)
10
-53.8V
R5193
(1/4W)
+53.8V 10
R5185
+52.3V
+1.1V
R5035
120K
0V
R5235
120K
Q5035A
-1.1V
-52.9V
(1/4W)
10
c o
-53.8V
R5195
.
D
2 4 2
9 8
(1/4W)
+B1L
R6020
2.2
(1/4W)
+1.1V Q6030
+BL
2SC5171
+0.6V
+BL2
TRIML
IDLING
ADJ.
-0.4V
-0.6V
R6040
2K
-BL
Q6040
-1.1V 2SA1930
-B1L
5 0 8 9 2 4 9 8
(1/4W)
+B1SL
R6023
2.2
(1/4W)
+1.1V
Q6033
+BSL
2SC5171
+0.6V
+BSL2
TRIMSL
IDLING
ADJ.
-0.4V
R6043 -0.6V
2K
-BSL Q6043
-1.1V 2SA1930
-B1SL
+B1SBL
R6025
2.2
(1/4W)
+1.1V Q6035
+BSBL
2SC5171
+0.6V
NFSBL
+BSBL2
TRIMSBL
IDLING
ADJ.
-0.4V
R6045
-0.6V
2K
-BSBL
Q6045
-1.1V 2SA1930
m
-B1SBL
E
9 9
NFL 9
+B1L 6
-B1L 5
+BL 4
3
-BL2 2
1
2 9 9
NFSL 9
+B1SL 6
-B1SL 5
+BSL 4
3
-BSL2 2
1
9
+B1SBL 6
-B1SBL 5
+BSBL 4
3
-BSBL2 2
1