8
Subject to change without notice
B l o c k d i a g r a m
MB Boar
d
CR Boar
d
PS Boar
d
XY Boar
d
YP Boar
d
HM303-6
Bloc
k diagram
FC Boar
d
TB Boar
d
CC Boar
d
CH 1
CH 2
Ext.Trig.
/
2
/
2
/
2
/
2
/
2
/
2
/
2
Impedance
Converter
(FET)
Buffer
Pre-
Amplifier
*1 / *5
Attenuator
4 : 1
2 : 1
1 : 1
Attenuator
100 : 1
10 : 1
1 : 1
Instrument
Control
Calibrator
Impedance
Converter
(FET)
Buffer
Input
Coupling
AC / DC
GND
Va
r.
Gain
Intermediate
Trigger
CH1
Amplifier
Intermediate
Trigger
CH2
Amplifier
Symmetry
&
Trigger
Pick Off
Tr
igger
Channel
Switch
CH1
Tr
igger
Channel
Switch
CH2
Trigger
Amplifier
(Sync. Amp.)
Intermediate
Amplifier
Y-
P
o
s
Control
LF
Filter
Impedance
Converter
(FET)
Buffer
Pre-
Amplifier
*1 / *2
Attenuator
4 : 1
2 : 1
1 : 1
Attenuator
100 : 1
10 : 1
1 : 1
Input
Coupling
AC / DC
GND
Va
r.
Gain
Symetrie
&
Trigger
Pick Off
Inverting
Switch
Intermediate
Amplifier
Y-Pos
Control
Trigger
Comparator
Channel
Mode
Control
Tr
ig
g
e
r
Buffer
Channel
Switch
CT
Switch
Y Final
Amplifier
X Final
Amplifier
& X-Pos.
Control
Focus
Control
Blanking
Switch
&
Amplifier
Astigmatism
Adjust
TB
XY
CT
Switch
Trigger
Channel
Switch
External
AC / DC
Select
& Line
P–P
Trigger
&
Level Control
Component
Te
ster
Blanking
Amplifier
&
Intens
Hold Off
Generator
&
Comperator
TV Sync.
Separator
&
TV Slope
Selection
Time Base
Control
AT
/N
M
Trigger
Sawtooth
Generator
(TB) &
Comperator
Power
Supply
HV
Generator
/
2
/
2
/
2
/
2
/
2
/
2
Line / Mains
/
2
/
2
/
2
/
2
/
2
