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1N4937
1N5954B
1N4937
3.3nF
510Ω
D
27
5
.1-.5VDC
.5-.8VDC
3-4VDC
3Vpp
47,D2
0VDC
27Vpp 57,F1
Hs
1-4VDC
12Vpp
50,E2
0.1VDC
1Vpp 51,F1
3-5VDC
5Vpp
52,F1
No DVM
300Vpp 40,G1
0Ω
198A
100uF
12
10
193K
12
4.67K
13
5.7-6.3VDC
16.3-19VDC
OUTPUT
1
2
4
3
15
16
14
5
6
7
8
11
10
9
V-
+7.5VREF.
XRC5184
Osc.
Rx
Cx
Current
SENSE
DRIVE
CONTROL &
FAULT SENSE
+15V
+17V
INPUT
INPUT
INPUT
ERROR
AMP.
COMP.
Output
Over
Voltage
Protect
+
COMP.
4uS
DELAY
115
131
SMXFR
113
166
142
124
126
125
J9
130
134
J10
J11
J12
106
J3
108
J4
107
144
143B
104
102
123
J8
133
116
127
2,200pF
MPSA64
1N4005
18Ω
14.7K
15.8K
1.00M
38.3K
3,300pF
.1uF
141
1N4937
FR205
1N4148
11K
88K
56pF
10.6K
23.2K
56pF
100K
2SA1371E
100uF
J7
33.2K
1.00M
181
175
160V Zener
250V
14.8-18VDC
9
5.5-6.8VDC
3-6VDC
6.5-7.5VDC
V- V-
12
17 18
16
J PRA PINS:
8,14
6
GND
V-
20
9
2
5
3,10,15,
&19
110
1,000pF
J1
112
1
20
JBJA
2.33K
J13 J14
-1.5V -3V
J2
J5
J16
J15
260Ω
130Ω
+3V
+1.5V
JD
JC
}
103
J PRA
111
137
138
140
47Ω
1/2W
CC
2SK1446LS
136
13
HEAT
SINK
135
62K
2.2nF
148
FR205
2.2nF
150
5
8
2
3
30Ω
139
168
GND
120
+
100uF
1
118
+
121
1N4937
122
100pF
129
41,D1
3.4-4.2VDC
6.5-7.5VDC
55, E1
INPUT
4
6
3
4
105
TP49, G1
152
0Ω
220pF
220pF
0Ω
+16V
1,000uF
171
+
169
1,000uF
450
V-
1KV
+
J6
128
250V
90K
7
163
155
FR205
156
114
143A
36K
REMOVE
FOR
230V
151
FR205
2.2nF-230V
152
230V
154
2.2nF-230V
153
FR205
230V
0.33Ω
2W
+28V
167A
132
149
18Vz
387
+
1N4937
170
1mF
1N4937
Posistor
146
2
1
PC
PC
230VAC
INPUT
3A Fuse
145
Connector
158
CPR0430
161
Degaussing
CPR0434
162
Inrush Current Limit
C-200-7
159
25-.5Ω
Degaussing Coil
CC1
160
TR250-145U
CC2
0Ω
471
CC3
+24V
468
.5A,240V
Relay
GND
See
Table
+
167
182
From Fault Crcuit
GND
120VAC
V+ minus 5V---H. Raster Shift
V+ plus 5V---H. Raster Shift
V+ plus 20V ---Video Supply +24, 28V to Vertical Deflection.
+16V, 18V to 12V Regulator.
SWITCH MODE POWER SUPPLY SCHEMATIC.
POWER
SUPPLY
LOW VOLTAGE
SECONDARIES
141
170
168
POWER SUPPLY CONTROL
VOLTAGE CURRENT CIRCUIT SUPPLIED DIODE
17VDC
16VDC
24-27VDC
7mA
500mA
350mA
VIDEO AND INPUT
V. & H. DEFLECTION
1,000uF
1,000uF
128
171
173
FILTER CAP.
100uF
SECONDARIES
V+ MODIFIER
(V+) -5VDC
(V+)+5VDC
(V+)+20VDC
150mA
150mA
60mA
H. RASTER SHIFT - LEFT
H. RASTER SHIFT - RIGHT
1VIDEO BOOSTER
121
122
167
100uF
100uF
220uF
118
120
174
POWER SUPPLY VOLTAGES REFERENCED FROM V-.NOTES:
SCOPE GND MUST
NOT BE CONNECTED TO GND AND V- AT THE SAME TIME.
The degaussing coil drive
circuit may use a dual posistor
158 or a single posistor with a
shorting relay 468 . The off
current of the single posistor is
large enough to cause raster
movement when there is a
differance between the line
frequency and the vertical
sync frequency.
V+
V+
91
468
158