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5
6
7
8
9
4
3
2
1
0
5
6
7
8
9
4
3
2
1
0
BB
CC DD EE FF GG HH II JJ KK LL MM NN OO PPAA
BB
CC DD EE FF GG HH II JJ KK LL MM NN OO PPAA
1,000uF
1
H. S. +12V
GND
I BEAM
1N4937
250V
1N4937
3.3nF
12
LM393
+
1/2
SCREEN
+
HORIZONTAL WIDTH CONTROL
510Ω
Posistor
Inrush Current Limit
10.0K
12
2.7K
1N4148
10
AC VOLTS
Peak to Peak
TEST POINT
ASS. REF.
Measured with scope
R
VC
4
RED
INPUT
1uF
+
355
11.5-12.5V
VC
3
GND
I PRA
416
U
HORIZONTAL
BLANKING
D
LM324
1/4
LM324
1/4
LM324
1/4
033
D
HEAT
SINK
049
B
oRo Go GAINM+ ENA
IN
BG
IN
R
IN R
R
R
G
A- BL
12mH
1N4148
1N4148
7.3VDC
5.5Vpp
01,D6
Hs
-.2VDC
1.5Vpp 04,E6
Hs7.3-8.7V
4Vpp 02,D6
Hs
330pF
7.3-8.7V
4Vpp 03,D6
Vs 5.5-6.3V
3.6Vpp 08,E6
Hs3-4VDC
1.4Vpp 05,E6
Hs 3-7VDC
.2Vpp 07,E6
Hs2.4-3.4VDC
06,E6
0Vpp
5-6VDC
7Vpp
Hs
09,E6
10.8-12V
10, E6
.4VDC
.7Vpp 12,E5
Hs
4.5-5.3V
5Vpp 16,E5
Vs.1-.3VCD
3.8Vpp 17,E5
Vs
4-6VDC
2.8Vpp 18,D5
Vs
5.5-6.5V
1.2Vpp 19,D5
Vs
or
11-12.4V
20, D5
5.5-6.5V
1.4Vpp
23,F4
Vs
22-28V
.8Vpp 25,F7
Vs
12-18VDC
33Vpp26,E7
Hs
12-18VDC
50Vpp
29,F6
Vs
5.6-6.2VDC
1-1.7V 34,B2
Vs
5.6-6.2VDC
2-3.6Vpp 33,B2
Vs
.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
300Vpp40,G1
7-10VDC
61, C2
4-7VDC
5-9Vpp
62,B4
Vs
0VDC
56Vpp 63,D6
Hs
4.5-5.3V
5Vpp 16,E5
Vs
2-3VDC
4Vpp 64,C4
Vs
033
033
049
355
355
198A
V. +12V
100uF
+12V
H. Linearity
EHT
10
12
Parabolic
GND
GND
GND
RAS. POS.
10
91.4K
PN2222A (CPQ1322)
.047uF
+ 1600Hz
680Ω
VIDEO GAIN LINE
12
169
10
784523
No
.
LTR.No
.
X-Y VDC
X-
Y V
X-Y VDC
TP-REF.Vp-p
WAVEFORM
X
X
LEGEND
BOARD PART No.
PART No. ON PRA.
PRA PIN No.
DC VOLTAGE RANGE,
USING A DMM.
GND
5
VC
G
GREEN
INPUT
6
B
VC
BLUE
INPUT
+12V
I10
1
13
18
14
15
16
20 19 18 17 16 14 13
GND
15
304
100uF
X-RAY
PROTECT
DISCHARGE
HORIZONTAL
OSCILLATOR
H. V+
V+
GND
9.31K
1K
33K10K
1uF
+
.01uF
45K
8.8K22K
12K
0Ω
220uF
334
202
I2
I3
I12
I7 I8
I9
345346344
347
I6
376
485
484
483
VERTICAL
370
418
415
LA7851
481
482
486
10K
500Ω
750Ω
20K
1K
3.92K
22K
410
1K
100uF
Master
Gain
Horizontal
Position
Vertical
Raster
Position
Vertical
Size
Horizontal
Size
Remote Control
PCB
490
VERT.
OSC.
GND
6,10
9
25K
I5 350
351
RC8
RC6
RC5
RC3
RC2
062
+12V
GND
+12V
GND
RC1
RC4
RC7
Vs
2
7
I1
352
56pF
1.8K
3
Hs
H.Fo ADJ.
17
comp.
+
-
8
11
417
3.92K
336
+400Hz
+800Hz
ICID
340Ω
170Ω
6.8K
I13
IB
I14
I15
322
6.8K
270Ω
270Ω
1.8K
1.8K
270Ω
331
325
326
330
1/4
LM339
1/4
LM339
327
22K
323
2
4
5
1
7
6
3
12
.14-.16V
+
+
± SYNC INPUT
VERTICAL VERTICAL
OSCILLATOR
V Ref.
VERTICAL
OSC. O/S
BIAS
MULTIPLIER
Horizontal
SYNC INPUT
POSITION
O/S
SYNC O/S
SAW TOOTH
GENERATOR
TR.
PICTURE
DELAYED
I4
100Ω
1/2W
420
VERTICAL
YOKE
+
1,000uF
35V
2SC3467
421
DEFLECTION
390Ω, 2W
0 TO 7 VDC
V
VIDEO BOARD
TC4
12V
TC2 GND
Feedback
V
Sync
CRT
Auto
Bright
Beam current
Feedback
Beam current
Feedback
Beam current
Auto Bias
Beam
Current
Buffer
B+G+R=∑
Red Video Amp.
Green Video Amp.
Blue Video Amp.
ABA
TC 3 Blue
TC5 Green
TC7 Red
TC 6TC 10
SOCKET BOARD CONNECTOR (TC) 206
800
GND
+12V
261
293
260 244 245
076
S
T
064
258
1
3
VERTICAL BLANKING
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
PN2907A
212
2.3-
2.7V
0Ω
065
014
071
036
MPSA64
1K
10uF
Beam Current
Limiter Circuit.
GND
+
6V
HS +12V
100uF
.1uF
061
010
6
7
28.0K
.01uF
50uH
12.1K
5
7
1.6KV
5
6
9
Pincushion
10.0K
10K
1/2W
.01uF
correction.
-Linear
510Ω
2.7K
1N4937
10.0K
44.2K
6.8K
10K
IRF520
LM392
1/2
1
8
10
+
LM392
1/2
GND
GND
2
3
431
432
441
051
029
6V
038
040
200K
097
054
4
043
045
047
8
058
055
096
056
057
060
460
1nF
500V
463
456
462
458
477
457
443
437
Ω
464
470
1/2W
GND
10.0K
10.0K
+6V
4
14
13
11
100uF
510Ω
022
023
021
026
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-
+7.5V
REF.
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
113
166
142
124
126
125
J9
130
134J10
J11 J12
106
J3
108
J4
107
144
143B
104
J6
128
102
123
146
J8
133
116
127
2,200pF
MPSA64
1N4007
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
250V
90K
220uF
J7
33.2K
1.00M
2
1
PC
PC
175
250V
14.8-18VDC
9
5.5-6.8VDC
3-6VDC
6.5-7.5VDC
CAUTION! POWER SUPPLY VOLTAGES REFERENCED FROM V-.
V- V-
SCOPE GND MUST NOT BE CONNECTED TO GND AND V- AT THE SAME TIME.
12
17 18
16
J PRA PINS:
8,14
120VAC
INPUT
6
GND
V-
GND
20
9
2
5
7
3,10,15,
&19
110
1,000pF
J1
1
20
JBJA
2.33K
J13 J14
J2
J5
J16
J15
260Ω
130Ω
JD
JC
163
}
3A Fuse
J PRA
111
137
138
140
47Ω
1/2W, CC
CPQ1304
136
13
135
250V
.33uF
082
009
HORIZONTAL YOKE
YC3
YC4
445
446
288
271
278
286
1N4148
270
GND
277
284
1N4148
268
GND
276
4
TTL
BL
B
GND
Controls XRC5346A
R
B
241
16 13
512
396 11
+12V
G
274
PN2222
273275
272
0
VC
394
440
GND
H. S.+12V
H SIZE
FBP
V-
PS FBP
VFB
VRP
V HYP
I BEAM
+6V
GND
+12V
H SIZE
FBP
V-
PS FBP
VFB
V HYP
I BEAM
+6V
H SIZE
I BEAM
GND
GND
+12V
H SIZE
FBP
V-
PS FBP
+6V
FBP
GND
I BEAM
+6V
FBP
GND
I BEAM
+6V
FBP
GND
I BEAM
+6V
Vs
GND
+12V
+
0Ω
Horizontal Raster Adj.
150Ω 1/2W
270Ω
510Ω
SR
GND
62K
2.2nF
155
156
FR205
148
FR205
2.2nF
150
066
75Ω
T
020
355
1/4
LM339
14
9
8
+
353
15.8K
1/4
LM339
13
11
10
+
360
356
3.92K
364
228
0Ω
084
086
FDH400
213
+12V
367
18Ω
+
298
+
295
0Ω
H. S. +12V
5
8
2
+12V
FDH400
FDH400
328
0Ω
GND
+12V
GND
3
HEAT
SINK
378
GND
+12V
408
15.8K
362
414
.01uF
361
127K
234 567 8 9 1011 12 13
+12V
Ramp
Gen.
Slope
out
Vert.
Drive
Retrace
Booster
GND
Boost
Drive
Vert.
Out
Thermal Protection
LA7838
Vertical
Deflection
Product safety note: Components marked by the
symbol on this schematic have special characteristics important to safety.
When replacing any of these components, be sure to use the parts specified in the parts list.
004
510Ω
375
401
1uF
.1uF
388
392
391
393
390
385
1.2Ω, 1W
403
S1
S4
S2
395
0Ω
V. osc.
363
404
407
372371
200K 200K
PN2222
373
PN2222
411
Vertical Linearity Circuit
30Ω
139
292
203
0Ω
180
CPR0432
V
377
.1uF
406
405
449
425
424
423
SL
447
044
095
FIL.
FOCUS
1
200Ω 2W
332
337
I11
433
343
340
453
2,200pF
100Ω
Horizontal Drive
8
7
5
4
3
2
FLYBACK
TRANSFORMER
2
1
3
4
GND
19
20
V-
Beam
Current
Transformer
338
100uF
342
1N4007
434
1.2Ω
435
1N4007
Video
Board
Fil.
TC11
FOCUS
Screen
EHT
+
168
Fil. Rtn.
TC12
GND
120
+
100uF
1
118
+
121
1N4937
4.7Ω
185
4.7Ω
195
122
159
Blooming
050
3.3K
053
3.3K
Correction
GND
22K
189
100pF
1N4007
333
2.2M
067
0Ω
Sync.
USE V. or H. SYNC.
DECREASES
TOP AND
BOTTOM
VERT. SIZE.
I
PN2907A
413
200K
412
200K
H
INCREASES
TOP AND
BOTTOM
VERT. SIZE.
D5
D5
409
466
524
0Ω
11
+
ADJ.
129
41,D1
329
12.1K
5.4-6VDC
11, E5
2-2.5VDC
4.4Vpp 39,B3
Hs
{
Measurements
are taken with
a white screen.
Hs - 5uS/div.
Vs - 2mS/div.
3.4-4.2VDC
6.5-7.5VDC
1.5-2VDC 60,D6
+12V
0Ω
422
2SC
4159
HORIZONTAL WIDTH DRIVE
0Ω
454
194
0Ω
0Ω
193
192
0Ω
341
330pF
Hs
55, E1
FBP
4-7VDC
4-9Vpp 61,B4
Hs
ARC PROTECT
INPUT
I16
461094
428
25Ω@25˚C, 2A
RC
002
BZT03-D160
181
160Vz
100uF
209
2SA1371E
112
5-6VDC
1.4Vpp 22,E5
Vs
V. size
Control
50/60Hz
4
1.5-2.7V
24Vpp
24,E4
Vs
6
3
4
YC1
YC2
426
427
Hs
32,F6
H Size
Min.Max.
Hs
4VDC
30Vpp 35,H7
H Size
20VDC
200Vpp
Min.Max.
LM393
+
1/2
5.5-6.4V
3Vpp 21,D5
Vs
One Shot
Tr.
R/C
out
4-19VDC
27Vpp 36,J7
Hs
GND
OUT IN
7812
296
348
Vs
4VDC
11Vpp
37,I6
H Size
20VDC
15Vpp
Min.Max.
281 280 283
357
0Ω
374
.01uF
402
coil
9
0Ω
136A
145
12V
4.7Ω
396
Reset
Ramp
Reset
Ramp
369
1,000pF
100uF
267
+
TP49, G1
0.8-7VDC
12Vpp 38,J7
Hs
12-18VDC
3-5Vpp
31,F5
Vs
NO DVM
27,G6
Hs
21 1415 7 8
152
0Ω
218
200pF
62K
High Temperature Or
Excessive Beam
Current, Monitor Shut
Down Circuit.
12.1K
2SA
22K
100uF
200K
034
011
017
1
008
109
035
15.8K
037
200K
005
+6V
0Ω
019
+
10.0K
031
LM324
1/4
033
2
3
0Ω
191
0Ω
188
Pincushion
Correction
114
0Ω
177
0Ω
176
0Ω
1,000uF
171
+
169
1,000uF
450
018
1N4148
012
1K
220uF
H
s
HORIZONTAL
SYNC
VC
12
VERTICAL
SYNC
V
s
VC
N
M
N
M
M & N reverse Hs.
089
100uF
+
127K
087
090
68.1K
085
TC9 iB OFF
1N4007
V-
1KV
+
063
18Ω
H. S. +12V
H. +12V
GND
077
1N4007
380
470uF
Connector
158
CC2
161
Degaussing
162
CC1
475
.10Ω
1W
478
476
.10Ω
1W
HER205 HER205
143A
36K
379
PN2222
384
389
0Ω
+12
V
088
098
383
CS=.45"
Retrace Boost
800
5
17
GND
170
1N4937
1N4937
CS=.74
22K
200K
62K
0VDC
28,D3
Hs
56V
092A
0Ω
CPT1538
15.8K
397
398
100pF
25V
1371
100K
173
V+
Video V+
419F
419B
419A
419E
525
&
CPT1505
210
J18
101.6K
JE
0Ω
533
0.33Ω
2W
0Ω
114A
.093" pins
PN2222A
CPQ1322
100kΩ@25˚C
382
IA
CERONIX
13350 New Airport Road
Auburn, California 95602
SCALE
:
DRAWN BY:
DATE & REV.
NONE
2/18/92
F. H.
CERONIX Model 1493-CGA Monitor Circuit.
0Ω
2.15K
0Ω 0Ω 0Ω
236 235
266
243
242
264
K
B5
225
223
226
J
A5
+12V
233
231
232
L
A5
221
6.8nF
6.8nF
2.15K
.039uF
+61V
6.8uF 100V
84.5K
100K
127K
2.7K
1uF
100K
220uF
220uF
220uF
3.92K
44.2K
200K
.033uF
200V
0.1uF
1.5uF
1,000pF
052
15.8K
196
0Ω
2.15K
191K
CPT1528
+25V
68.1K
+25V
V+
+43V
+61V
+43V
V+
+25V
+55V
+25V
V+
+25V
+43V
+61V
+43V
+61V
041
452
NC
CPT1558
.9KVpp
030
28K
3.3K
3.3K
042
4/10/96-E1
9/30/96-E4
93.1K
092
0Ω,
470Ω
3/24/99-E5
CPA4233, CPA4235
CERONIX
PART NO.
430
68.1KΩ
2.15K
412Ω 105Ω 604Ω
604Ω
909Ω
464Ω
OPEN
330pF
CPR0434
Black Wire.
0Ω
470Ω
1/2W
465
28.0K
365K
+25V
127V TC8
TC1
16V
+16V
+127V
+16V
+16V
2SD1651
FR205
438
FR205
107V or 127VDC
120Vpp 250Vpp
Open
0Ω
0Ω
Open
6
2.2K.5W
382
-1.4V -2.8V
+2.9V
+1.4V
03/06/02-E8
CC3
+24V
468
200V.5A
Relay
470
0Ω
.093" pin
162A
-265V
+127V
510Ω
006
100B
PN2222
6.8K
099
0Ω
100A
3
1
2
5
10
0Ω
6.8nF
6.8nF
1nF
62K
169K
0Ω
167A
0Ω
132
1N4937
220uF
167
182
100V
+127V
0Ω
.05VDC
7V pp 58,C5
Vs,Hs
PN2222
255
246
200K
254
PN2222
257
100K
247
33K
256
200K
.047uF
GND
318
366
7.15K
7.15K
2.1-2.4VDC
4.6Vpp 59,D6
Hs
15.8K
68.1K
1K
358
354
3.3nF
6.8K
321
529
3.92K
800V
400V
444
470Ω, 1/2W
CC
16
227
239
P
533/532
10 / 11
16