Filter
Top Products
Model 5328A
Maintenance
5-33. IC Troubleshooting
5-34. To troubleshoot the IC’s on the A1 Motherboard, proceed as follows:
a.
Set the FUNCTION switch to CHECK.
b. Set the FREQ RESOLUTION, N switch to 1 MHz, 1.
c.
Remove top cover and remove A4 Function Selector Assembly.
d. Apply power and check for the logic states as shown in Table 5-5, using an HP Model
10528A Logic Clip or a Model 10525T Logic Probe. A dark pattern indicates a logic high.
5-35. Function Signals
5-36. Table 5-6 lists the functional signals at pertinent points for each position of the FUNC-
TION switch. This information can be used to isolate problems that may occur in any of the
various modes of operation.
5-26