Hameg Instruments HM 307 Bedienungsanleitung Seite 28

CRT CIRCUIT
R 352
0.22p
390k B
C351
R 353
390k B
rd
R351
Focus
180
470k
R 354
R 355
180k
61
-867V
1 359
40V 1M5
z 352
c 352
68p
C353
-900 v
rd
R356
m 500k
358
470
Intens
Unbl. pulse -shape adi.
(0.5
R 257 S and 0.5ms/cm)
Intense
SQUARE-WAVE GENERATOR
4x
15k
R373
4
100
R371
Calibr.
O,2Vpp
O. 2 Vpp
R 37
R 374
220
6R8
— 12VX
6.79
+IOOVDI
+87.5V 03
—590V....—680V
UNBLANKING 0351
CIRCUIT IN414
T 352
5
BF440
OPTOCOUPLER
•CNY 17/11
'C 304
68 p
2kV
10k C355
T353
BF199 - 867V
(blanked)
68 p
.R36 3kV -900
(unblanked
c 354
0.19
R 360 R 363
IOOV
1k
c 356
Unblanking Pulse
(from Sweep Flip. Flop)
(approx.
1/4 HEF 4011BP IC305
C360 In
5 8
11
3
6
9
2
R375
c 358
47k
c 362
C361
R376
IOP 33p
47k
HM 307-3
CRT
3RP IA
T 354
10 9
02
BF 297
trp
6
7
trp
ACC
8 trp ca. +85 V
120k
47n
R 367
C357
750k
R 365
ASTIGMATISM CONTROL
12
v
ye
+3.4 V
ov
F F
6.3'+0.6 A
(from Transforrt*r)
13
12
47k
R 368
100k
R 369
120k
R 370
o
"lit:
c 304