Timing Board; Supply Voltages; Supply Voltages Testpoints On The Timing Board - HP 8114A Service Manual

8 114A
HP Service Guide

Timing Board

This board consists mainly of data-controlled devices and
troubleshooting is reduced to replacing suspect devices. However,
checks
basic can be performed on some parts of the circuitry:

Supply Voltages

Check whether the power supply voltages are present on the board.
Measure against AGND at the positive pole of capacitor C109.
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Figure 5-6. Supply Voltages Testpoints on the Timing Board