Specifications

Checkout Procedures for Model 400t, 425t, and
400dl Systems
This section deseribeshow to check the power supplyoutput to the system unit
and how to check the calendar battery.
WARNING: These promdures involve the verification of
high-voltage components. They
should be
performed by qualified servicepersonnel
only.
CAUTION
‘Aesum‘hatyou‘Pror?vdd
before you attempt any oft e 01owing
promdurea. Use an antistatic mat with static
straps and other static prevention devieea
whenever possible.
Figure 4-12 shows the power connections, which are referenced in the proce-
dures that follow.
Fi~m 4-12. Pbwer Connections (Model 400t, 425t, and 400dl)
Troubleshooting 4-15