Instruction manual

10. FUNCTION SELECTOR SWITCH
A rotary Switch for waveform selection.
11. FREQUENCY RANGE SELECTOR SWITCH
A rotary Switch to select the range from 10Hz to 1MHz in 6 steps.
(Refer Fig. 1B)
12. Hz LED
Green LED will light when the Main Output frequency is in Hz.
13. kHz LED
Red LED will light when the Main Output frequency is in kHz.
14. 5 DIGIT DISPLAY
Indicates frequency of Main Output or the frequency of signal connected
to External Input.
15. EXT COUNTER LED
LED becomes ON when External frequency counting is selected by
Coupling Switch.
16. COUPLING SWITCH
It is three way switch to select Internal / External High Frequency / Ex-
ternal Low Frequency mode.
17. CMOS ADJUST KNOB
For adjusting the CMOS level of SYNC Output while in CMOS mode.
Pull the Knob for CMOS ON.
18. EXTERNAL INPUT BNC
Connector for counting external signal frequency.
19. VCF INPUT BNC
For connecting external DC or AC signal from 0 to 10V to achieve volt-
age controlled frequency output.
4.2 REAR PANEL DESCRIPTION
On the rear side of instrument Main’s Input socket is provided. The socket
has fuse plug, which is used for fuse replacement and input line voltage
selection. The selection of Input line voltage (110/230V AC) depends on
how we insert the fuse plug. Refer to Arrow marks on fuse plug and the
mark on the panel.
For cooling purpose 40mm Fan is provided on rear panel.
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