Integra DTR-7.8 Service Manual page 17

E
QQ
3 7 63 1515 0
NACLA-9063
U18
POWER AMP
PC BOARD
C5010
R5000
1K
1
C5020
2
3 221K
FRONT L
NACLA-9068
U23
POWER AMP
PC BOARD
R5005
1K 47/50
1
C5025
2
3 221K
TE
L 13942296513
SURROUND
BACK L
NACLA-9066
U21
POWER AMP
PC BOARD
R5003
1K 47/50
1
C5023
2
3 221K
SURROUND
L
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
www
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 1/4WATTS UNLESS OTHERWISE NOTED.
.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX)
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
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F
+64.8V
+62.8V
+62.8V +63.4V
+52.7V
R5020
+
330
47/50
-0.6V
1.8K -0.9V
R5090
-11.0V
-59.3V
-63.3V
-64.8V
+64.8V
+62.8V
+62.8V +63.4V
+52.7V
C5015 R5025
+
330
-0.6V
-0.9V
1.8K
R5095
-11.0V
-59.3V
-63.3V
-64.8V
+64.8V
+62.8V
+62.8V +63.4V
+52.7V
C5013 R5023
+
330
-0.6V
1.8K -0.9V
R5093
-11.0V
-59.3V
-63.3V
-64.8V
!
ARE CRITICAL FOR SAFETY.
IS DC VOLTAGE.(NO INPUT SIGNAL).
x ) ARE IN uF/WV. ao
y
i
PRINTING SIDE
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G
8
15 (1/4W)
+B2L +B1L
R5230 +65V
+1.1V
+BL
R5180
10
33 (1/4W)
(1/4W)
R6310
0.0V
56K
R5250
R5260
R6110 270K
10K C6000
102J
IDLING
ADJ.
-BL
-1.1V
(1/4W)
-65V
-B2L R5240 15 -B1L
(1/4W)
15
+B2SBL +B1SBL
R5235 +65V
+1.1V
+BSBL
33 (1/4W)
R5185 10
(1/4W)
R6315
0.0V
56K
R5255
R5265
R6115 270K
C6005
10K
102J
IDLING
ADJ.
Q Q
3 6 7 -BSBL 1 3
-1.1V
-65V
R5245 15 (1/4W)
-B2SBL
-B1SBL
15 (1/4W)
+B2SL +B1SL
R5233 +65V
+1.1V
+BSL
R5183
(1/4W)
33 (1/4W)
10
R6313
0.0V
56K
R5253
R5263
R6113
270K
10K C6003
102J
IDLING
ADJ.
-BSL
-1.1V
-65V
(1/4W)
R5243 15 -B1SL
-B2SL
NACLA-9063,66,68
are fully compatible with each other.
u163
.
H
2 9 9 4 2 8
4
3
2
1
1
+0.6V
2
-0.6V
3
4
5
6
4
3
2
1
1
+0.6V
2
-0.6V
3
4
5
6
1 5 0 5 8 2 9 9 4
4
3
2
1
1
+0.6V
2
-0.6V
3
4
5
6
m
co
DTR-7.8
9 9
2 8 9 9