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Theory of Operation (2635A)
Detailed Circuit Description
2A
2A-37
1.37 ms
1.37 ms
1.37 ms
1.37 ms
16.56 ms
0V
GRID(10)
0V
GRID(9)
0V
GRID(1)
0V
GRID(0)
…
…
140 µs
GRID TIMING
s19f.eps
Figure 2A-9. Grid Control Signal Timing (2635A)
1.37 ms
0V
5V
ANODE(14..0)
-30V
GRID(X)
-30V
GRID(X-1)
GRID/ANODE TIMING
5V
-30V
72 µs
22.5 µs
117 µs
67.5 µs
140 µs
0V
5V
0V
s20f.eps
Figure 2A-10. Grid-Anode Timing Relationships (2635A)
2A-70. Memory Card Interface PCA
The Memory Card Interface Assembly operation is composed of four functional circuit
blocks: the Main PCA Connector, the Microprocessor Interface, the Memory Card
Controller, and the PCMCIA Memory Card Connector. These blocks are described in the
following paragraphs.