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DP-4X PROT_OVP and PROT_OCP SHUTDOWN DIAGRAM
PDC1
RE35
2.2 Ohm
+220V
1
QE08
CE10
EGB2
REF1
10 Ohm
VM
2
220V
REF2
QEA8
REE9
SW +2.2V Reg
IV01
1
3
SW +3.3V Reg
IY01
1
SW +5.7V
SW +9V Reg
IY07
5
DM +10.5V
PROT_OVP SHUT DOWN DIAGRAM
RED CRT PWB
R.G.B. Drives
VM 200V
RE27
RE34
RE31
VM PROT
RE29
Text Indicates the Labels on the Schematic
PROT_OCP SHUT DOWN DIAGRAM
BLUE CRT PWB
VM Circuit
REF4
REF5
REF5
CEC1
DEB6
SIGNAL PWB 2 of 3
7
SW +2.5V
8
3
SW +3.3V
3
SW +9V
SIGNAL PWB
GREEN
CRT
PWB
ERG1
PSC
7
3
VM PROT
PROTECT
GREEN
CRT
Generation Circuit
PWB
EGB1
PSC
8
2
GAIN
VM GAIN
CONT
CONT
CZ04
DY03
RZ62
RZ60
DY04
3
SIGNAL PWB
PDS3
PDS3
Active Hi
8
CPT
Active Hi
Also Shuts Off
PROT_OVP
VM Signal
PROT_OCP
Active Lo
1
VM GAIN
CONT
PDS3
4
9
RL50
QY60
RZHD
DEF. PWB /
DEF. POWER
6
A
PROT_OVP
From Deflection
Side Shut Down
Circuit
PPS1
E
47
7
5
F
45
SIG
POWER
PWB
See Signal
Power Supply
Shut Down
Circuit
DEF. PWB /
DEF. POWER
1
B
PROT_OCP
From Deflection
Side Shut Down
Circuit
PAGE 01-07
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