Tektronix TDS 200-Series - Display Area

Theory of Operation
3–4
TDS 200 Series Digital Oscilloscope Service Manual
Extension
Module
CH1
J1
2
P3
J103
LCD
5
J200
J250
DC In
Display Control
5
0
J690
J2
J4
J3
RS232
GPIB
CENTRONICS
Front Panel
A1 Main
Display
CH2
P131
Backlight
Probe Comp
Signal
7
GND
GND
Backlight Power
3
AC Line In
Power Supply
AC Line
DC Out
& Line
Trigger
J101
J104
J1
Probe Comp
GND
J104
J102
J131
12
J902
J90
1
9
24
25
CH3
J300
CH4
J350
Figure 3–2: Module-level block diagram (four channel)