Technical information

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18
© 2001 SGC, Inc.
7.0 SG-239 Enhanced Features
1. Clear (Erase) all 170 memory bins
A. Set Auto-Manual slide switch position to AUTO.
B. Remove DC power from SG-239
C. Depress both ‘Cin Up’, (S3) and ‘Cout Dn’, (S8). Keep
both depressed for next step (Step D).
D. Apply DC power to SG-239. In less than one second, all
status LED’s will start to flash on and off.
E. Once LED’s start flashing, memory will have been
erased and S3 and S8 can be released.
End of procedure
2. Clear single unit memory bin
A. Set auto-manual slide switch position to auto.
B. Transmit on frequency to recall desired memory bin.
C. Switch the transceiver to receive mode.
D. Set auto-manual slide switch position to manual.
E. Momentarily depress ‘SAV’, (S2).
F. Return auto-manual slide switch position to auto.
G. Momentarily depress ‘SAV’ (S2). Current memory bin
has been erased.
SW2
PUSH But t on
DS2
Red LED
R2
330
+13.6VSW
DS1
Gr een LED
R1
150
SW1
DPDT
CA1
C1
0.1µF
C2
0.1µF
R3
330
D1
1N757
C3
0.1µF
Q1
2N2222
3 4
52
61
TUNED FROM COUPLER
NORMA L
RESET
GROUND
+13.6 VSW
Red
Gr een
Black
Whi t e
RED
GREEN
WHITE
BLACK
NO TUNE /
RESET FROM COUPLER
SG-239 Manual
page 18
Wednesday, October 17, 2001 08:31
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