3-3
WRT-808A (U)
Battery terminal
Red
DC ammeter
+ –
Black
DC power supply
DC output
voltage: +3.0
±
0.1 V
+
+
–
–
5.
Connecting the DC power supply.
Supply the DC power to the battery terminal springs as
shown below.
Check
After the DC power supply connection is completed, set
the power switch (S301) to ON, and check the level on
DC ammeter.
DC ammeter indication level: 160 to 200 mA
Adjustment Location
10
50
MIC input
(CN101)
AF/PEAK
(D503)
CN402
(RF output)
CT301
(carrier freq.)
RF-90 Board
S505
S504
RV101
(Input level control) (Channel select)
CT401
(RF power)
RV401
(RF power)
POWER/BATT
(D502)
TP201
RV201
(Tone signal)
RV202
(Ref. frequency dev.)
S401
(RF power output)
AF-27 Board
S301 (Power)
