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+14V
V-SYNC
H-SYNC
CLAMP
Fig 2 Autosync Deflection Controller circuit
2.1.3 H-Driver & Output CKT
HDRV signal comes from IC201 pin8, then goes into Q301, Q301 constitutes an inverting stage and
combines with T302 to drive Q302. Q302, C306,C309, D305 constitute the H-output CKT with diode
modulator mode.
2.1.4 Dynamic Focus CKT
2-2
IC203
LM7812
+12V
1
VI
VO
3
GND
C221
+
2
100U
16V
(EL)
HDRV
EWDRV
V2
V1
R201
100
R202
100
R235
2.2K
SCL
R209
100
SDA
C206
R210
R212
0.18U
100
22K
100V
VSMOD
(1%)
(PE)
R211
510
R258
200K
+5V
FR374
27K
1/4W
H945
Q320
HBNK
R372
R375
47K
4.7K
1/4W
HFLB
+45V
R301
220
T302
3W
19.20079.011
4
3
5
R303
1K
1
C301
+
6
1U
C302
50V
220P
(EL)
50V
(D)
HDRV
Q301
C303
C2235
0.1U
D301
50V
1N4148
(MONO)
FR306
Fig 3 HDRV & output circuit
No Copy/Reproduction Allowed
+12V
R251
+48V
2K
R205
C226
130K
100U
25V
VR201
(EL)
HVADJ
R207
100K
12K
C202
2200P
R204
100V
2K
2%
R206
0.22U
(EPI)
10K
50V
(EL)
+
C201
C222
47OU
25V
(EL)
R208
680K
IC201
TDA4854
R214
1.27K
C207
(1%)
R215
R213
0.1U
2.55K
C210
3.3K
100V
(1%)
O.01U
(PE)
100V
C208
C209
2%
0.1U
8200P
(EPI)
100V
100V
(PE)
(PE)
C331
680P
500V
(D)
C307
100P
2KV
FR373
(D)
3.9K
1/4W
C308
680P
1KV
R307
(D)
10K
1/4W
R384
100
1/4W
Q302
BU2520AF
R304
0.22
R305
1W
33
1/4W
D302
C305
1N5818
0.047U
50V
(PE)
C304
0.22U
100V
(MPE)
D304
1N4005
1
C306
1/4W
4300P
630V
(PP)
D303
1N4148
API Confidential
+6.5V
+
D201
1N4148
R238
43K
R257
Q207
BLANK
3.6K
H945
C203
+
47U
50V
(EL)
C204
R216
+
1U
16K
50V
(1%)
TP3
(EL)
R217
100K
(1%)
R220
36K
C211
R259
2200P
25.5K
R219
100V
R260
R261
(PE)
1%
21.5K
68K
56.2K
1%
1%
D208
1N4148
D206
1N4148
D207
1N4148
DYH+
C309
6200P
1.6KV
(PP)
L308
(SHORT)
3
D305
FMP-2FU
2
1
7277e Monitor Service Guide
TP2
+48V
R218
20K
(1%)
HFLB
FOCUS
HSMOD
SC2
SC1
SC0
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