Schematic Diagram - Main Section (3/3) - Sony STR-DG720 Service Manual

STR-DG720
Q Q
3 7 6 3 1 5 1 5 0
5-11. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
1 2
A
MAIN BOARD (3/3)
B
C
T E
L 1 3 9 4 2 2 9 6 5 1 3
D
CNP500
3P
+7V 1
DCAC
H
BOARD GND 2
CN2000
-7V 3
(Page 42)
E
CN500
3P
15.6
+15V 1
VIDEO
E
BOARD GND 3
C350
CNP203
-15V 4
(Page 35) 0.47
C352
0.47
-16.5
F
w w w
G
STR-DG720
3 4
(Page 26)
MAIN BOARD (1/3)
3
AEP,UK MODEL
JS510
US,CND MODEL
R510
100
2W
Q500
2SC1815GR-TPE2
-55.7 -55.6
-54.8
MAZ8300GMLS0
R502 R501
470k 10k
IC350
+7V REG
NJM4565M(TE2)
R503
10k
-5.5
IC350
1.1
TA7807S
6.9
I O
G
1 3
-6.9
C351
2 VEE
100
16V
C353
D352
100
1
1SR154-400TE-25
16V
2 3
-6.9
IC352
IC565
TA79007SB
IC352
OVERLOAD DETECT AMP
-7V REG
x a o
y
. i
http://www.xiaoyu163.com
5 6 7
(Page 27)
MAIN BOARD (2/3)
4
1 R511
330 2W (US,CND)
470 2W (AEP,UK)
R511
R546
1 1
Q Q
3 7 6
Q500,501
B- SWITCH
D500 Q501
RT1P241C-TP-1
6.2 6.3
C900
0.1
D501
-5.5
MA2J1110GLS0
E
IC565
ET902
6.9
VCC
R506 R932
-5.5
47k 4.7
R507
220k
+ - -3.7
-5.5
C500
0.1
C933
0.1
100V
R505
10k
R504
10k
D5SBA20-4003
u 1 6 3
28 28
2 4
8 9 9
8 9
CNP912
D940-943
RECT
CN941
D940
1SR154-400TE-25
3 1 5 1 5 0 8 9
R940
0.15
C940
D941
1/2W C904
0.47
1SR154-400TE-25
3300
D942
16V
1SR154-400TE-25
C941
0.47
D943
1SR154-400TE-25
CNP940
Q930
2SB734-T-34
RELAY DRIVER
C930
D930
47
PTZ-TE25-5.6B
-55.6 -20.1
JS930 35V
R931
10k CNP930
-20.6
C932
R930
47
22k
35V
C931
47
35V
JS920
D921
RECT
~
C920
0.22
100V
C922
CNP921
~
10000
71V
C923
C921
10000
0.22
71V
m
100V
JS922
c o
.
2
8 9 9
10
7P
1 R2 RETURN GND
2 HP_GND(NC)
STANDBY
3 -15V
J
BOARD
4 STBY GND
CN912
5 R2 GND (Page 46)
6 +15V
7 NC
3P
DIGITAL
2 1 4 GND (R4) 9 8 D 2 BOARD 9 9
(2/3)
2 +7V (R4)
CNP505
3 GND (R4)
(Page 32)
6P
6 R4 +AC
5 R4 -AC
T901
4 F1
K
POWER TRANSFORMER
3 GND
(MAIN)
2 NC (Page 46)
1 F2
3P
3 F2
DISPLAY
I
2 F1
BOARD
CN108
1 -20V
(Page 44)
3P
R1 (UPPER TAP)
T901
L
POWER TRANSFORMER
R1 GND
(MAIN)
R1 (UPPER TAP)
(Page 46)