Icom IC-251A Instruction Manual page 13

23. TUNING SPEED (TS) INDICATOR LED
Iluminates when the TUNING SPEED Button is pressed to set the dial to 1KHz-step tuning.
24. RECEIVE INDICATOR LED
lIluminates when the squelch is opened in the receive mode.
25. FREQUENCY DISPLAY
The frequency of the IC-251A/E is displayed on a luminescent diaplay tube. Since the 1MHz
and 1KHz decimal points are displayed, the frequency can be easily read.
The frequency
indicated is the carrier frequency of each mode.
The frequency which is changed by use of
the RIT is not changed on the frequency display.
The letter shown to the left of the fre-
quency indication is the initial letter of the operating mode set by the MODE Select Switch.
REAR PANEL
@)DC POWER SOCKET
6)MEMORY SWITCH
@PACCESSORY SOCKET
6)GROUND TERMINAL
@)AC POWER SOCKET
GMFUSE HOLDER
@DKEY JACK
26. AC POWER SOCKET
Connect the included AC power cable to this connector and the included jumper plug to the
DC power connector for AC operation.
27. ACCESSORY (ACC) SOCKET
The table below shown terminal connections of this connector.
NOTE: IC-RM2/3 does not function with the IC-251A/E.
ACC SOCKET CONNECTIONS
QDOYOOS
OLOIOLELOTs)
QDOOUO@
O®©®O OOM) Outside view
at