High Frequency Component Of +5V Source - Radio Shack TRS-80 Service Manual

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TRS·BO
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s ...
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Ch. A - A9 CU23, pin 17)
2V/Division
DC Coupled
Ch. B - A7 CU23, pin 15)
2V/Division
DC Coupled
Horizontal - .2µSec/Div.
Trigger - Internal, Ch. A
Slope Positive
Figure 5-13. Address Lines (typical)
Ch. A - D2 CU23, pin 29)
2V/Division
DC Coupled
Ch.
B -
D3 (U23, pin 28)
2V/Division
DC Coupled
Horizontal - .2µSec/Division
Trigger - Internal, Ch. A
Slope Positive
Figure 5-14. Data Lines (typical)
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lhaell----------
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