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LM393
+
1/2
HORIZONTAL BLANKING
0VDC
56Vpp 62,D6
Hs
4.5-5.3V
5Vpp 16,E5
Vs
2-3VDC
4Vpp 63,C4
Vs
+12V
PN2222
.047uF
1
3
VERTICAL
GND
368
1.8K
1N4937
078
080
093
270Ω
081
072
248
252
253
250
211
210
6.8K
251
6.8K
1.8K
207
208
1K
1.8K
GND
1N4148
7
5
6
4
8
2
MPS2907
212
2.3-
2.7V
0Ω
BLANKING
4-7VDC
4-9Vpp 61,B4
Hs
077
0Ω
LM393
+
1/2
From auto bias IC pin 13
(BIAS ACTIVE)
From LA7851 pin 16
(VERTICAL BIAS O/S)
From FBT pin 8
(FLYBACK PULSE)
BEAM CURRENT
LIMITER CIRCUIT.
258
260
244
245
076
604Ω 1.21K
1.62K
S
TU
1.21K
064
+12V
GAIN SELECT RESISTORS
GND
VIDEO INTERFACE IC
C5346
M
GAIN
241
2.7K
1.62K
BLANKING, MASTER GAIN, BEAM LIMITER, AND FAULT CIRCUITS SCHEMATIC.
VIDEO GAIN LINE
Remote control PCB
+12V
GND
MASTER
GAIN
1K
1K
062
485
RC2
4-7VDC
4-9Vpp 61,B4
Vs
77
D
065
014
071
036
PN2222
MPSA64
1K
10uF
+
066
75Ω
28.0K
018
1N4148
012
1K
15.8K
037
+12V
7-10VDC
61, C2
GND
T
020
180
CPR0432
GND
BEAM CURRENT
2SA1371
22K
017
1
008
0Ω
109
200K
005
019
100uF
035
0Ω
+
LM324
1/4
033
2
3
12.1K
034
62K
011
+3.4V
GND
009
LIMIT
010
.1uF
FBT
EHT
Return
453
Temperature
Sensor
8
4
Power supply
controller IC
C5184
115
OVP
Shutdown
14
Excessive beam current or
high temperature comparator.
12
+6V
FAULT
CIRCUIT