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1. Low-Voltage Power Supply Adjustments
4. Connect the DVM to
AlA6TP3
on the IF-Display Section. DVM
indication should be + 15.000
fO.O1O
V dc. If the voltage is out of
tolerance, adjust AlA6R9 + 15 V ADJ for the specified voltage.
,
AlA71P2
AlA6DS2
AlA6TP4
5
Figure 3-2.
IF-Display Section Low-Voltage Adjustments (SN 3001A and
Below)
t
Figure 3-3.
Al
A7DS2
AlA7TP3
A
lA6DS2
AiA6TP4
IF-Display Section Low-Voltage Adjustments (SN 3004A and
Above)
5. Verify that the -15 V indicator AlA6DS2 (yellow LED) is lit.
6. Connect the DVM to
AlA6TP4.
DVM indication should be
-15.000
f0.050
V dc. The -15 V supply is referenced to the + 15
V supply; therefore, if the -15 V supply is out of tolerance, a
circuit malfunction is indicated.
3-26
Adjustments