Tektronix TDS 420A - Page 271

Diagrams
TDS 420A, TDS 430A & TDS 460A Service Manual
9-9
AUX TRIGGER/
EXT CLOCK
< 6V
REAR PANEL
2
BATTERY
A03 CPU
DIAG PORT
RS-232 PORT
10
10
25
15
8
VIDEO
VGA
A26 MONITOR
MONITOR ASSEMBLY
DISPLAY
VIDEO
A02
2
98
50
1
GPIB
IEEE 488
PORT
PROCESSOR
SYSTEM
98
OPTION 13
A10 SERPAR
7V, 2A FUSED
RS-232 DTE PORT
2
9
25
CENTRONICS
COMPATIBLE
Floppy
Drive
26
A01 BACKPLANE
Figure 9- 6: TDS 400A Block Diagram, B080000 & up (Cont.)