Hitachi 51SWX20B Service Manual page 116

DP-2X CHASSIS POWER SUPPLY SW +115V REGULATION
T902
8
7.5P/P
9
AC
From Relay S901
D912
RED L.E.D.
AC for D902
Supplied from
Relay S901
From Bridge D902
150V
T902
1
2
F903
C933
T902
D915
11
C927
12
C945
X-Ray
Protect
High Voltage Power Supply
Start Up
R924
R925
16.3V
4 Osc B+
D915
OCP
I90 2
R934
Driver/
Output IC
3
D S
6
R926
R927
R928
0.22
C925
Ohm
5
6
R941
Q905
0.47 Ohm
R943
D924
D925
D926
Run
D911
D914
R931
R932
1
D913
R929
2
1
E906
0.5K
3K
E907
L914
Deflection
R942
B+ 115V
R945
D927
R946
D928
116
R930
FB
I90 6
4
3
Regulator Photocoupler
Hot Ground from
pin 9 of T902
I90 7
2
R936
C942 C941
3
PPD6
0.69A
9
SW +115V
10
SW +115V
Cold Ground from
pin 12 of T902
C905
DP27 DP27D
SW + 115V
R937
1
R935
2
D922