Integra DTR-7.7 Service Manual page 23

A
SCHEMATIC DIA GRAM-8 (SD-8)
POWER SUPPLY SECTION
1
S2+
2
S2-
3
4
<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.
5
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) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
B
NAPS-9000
U17 POWER SUPPLY PC BOARD
F951
D953
6.3A L250V
D10XB60H
4
1
BROWN
2
BLACK
3
4 BROWN
F952
6.3A L250V
E5502
F931
1.6A L250V
1
S3+ GRAY
2 GNDA WHITE
S3- GRAY
3
FLAC1A BLUE
4
FLAC2A BLUE
5
F932
1.6A L250V
!
ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNA L).
) ARE IN uF/WV.
0.22
R953
Q951 TA7805
1
I
2
1
+9V
3
XM POWER DC type only
J952
R966
0.22
(1/2W)
S812C53
Q952
R956
2
I
G
33
(1/4W)
R969
0.22
(1/2W)
R970
+22V
2.2
GNDA
-22V
22
2SA965-Y
(1/2W)
D957
Q954
R963
R962 C967 RN1N4003
+
2.2
220/50
(1/2W)
C
(1W)
3
O
2SA1488
Q959
3
O
1
NJM78M12
Q953
1 3
I O
GND12
Q957
2SA1015
(1W)
R946
R971
Q955
10
0.22
2SD1858
(1/2W)
(1/2W)
Q960
2SC1740S
-VP
Q956
RN1202
DTR-7.7
D
POFF2 15
+9VVD 14
+9VVD 13
GNDV 12
GNDV 11
-9V_VD 10
+5VDSP 9
+5VDSP 8
GNDD 7
GNDD 6
+5.3VXM 5
GNDD 4
+VMPU 3
POFF 2
D961
RN1N4003
APOWER 1
D962
RN1N4003
1
+12V 2
10S 3
POFF 4
GNDRL 5
GNDD 6
RN1202
Q958
GNDD 1
FANDC 2
GNDFL
5
+5VDSP 4
-VP
3
FLAC2
2
FLAC1
1