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Model 204B
Section
V
Figure 5-8
VIOLET
B L A C K
RED/ORANGE
AC
SUPPLY CHASSIS
\
115/230
AC POWER
CONNECTOR
SWITCH
204B-S-18A
Figure 5-8.
AC Power Supply
k. Solder R106, red/orange, black, and violet
wires to batteries. (See figure 5-9.)
m. Slide power supply into oscillator chassis and
fasten with s c r e w s removed in steps b and c.
n. Tighten s c r e w s loosened in step d.
p. Check voltage and polarity between floating
ground and bottom terminals on batteries BT101 and
BT104. (See figure 5-9.
)
Terminal on BT101 (violet
wires) must be negative and terminal on BT104 (red/
orange wire) must bepositive with respect to floating
ground (black wire on bottom terminals of BT102 and
BT103). Measured voltage at either terminal
w i l l
be
approximately 13 volts. If polarity is reversed a t
either terminal o r measured voltage is low (usually
l e s s than 1 volt), batteries have not been properly
installed.
g.
When conditions of previous steps have been
satisfied, turn oscillator on and measure maximum
oscillator output voltage.
r.
If maximum oscillator output voltage into
an
open circuit
is
l e s s than 5.0
V
r m s , turn oscillator
O F F and recharge batteries by following the procedure
in paragraph 3-16.
s.
Replace top, bottom and side covers.
01369-4
5-9
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