Holland Electronics ST-5120 - Manual (Page 5)

Keypad Controls
See fig. 1.1 to locate the following keypad controls.
1.

– Power on/off button.
2.
CH – Selects Video, Audio and V-A carrier measurement modes. Default is Video
carrier mode. In any carrier mode the 
buttons can be used for stepping to the
desired channel.
3.
MHz – Changes the Channel selective mode to Frequency mode. The 
buttons
can be used for stepping to the desired frequency.
4.
SYS – used with the 
keys to select either CATV or VHF/UHF inputs and either
dBmV r dBuv measurement units.
5.
– Backlight on/off
Note: Using the backlight will discharge the battery more rapidly.
It is recommended that you select this function only when necessary.
6. – Selects contrast of volume adjustment.
7.
– AC Power measurement mode.
8.

- Used to increment or decrement channel or frequency. Also to adjust volume
level or LCD display contrast. Also used to select between CATV or UVH/UHF
units, and dBmV or dBuv measurement units.
Other Physical Features
9. F-Type input connection.
10. Audio Speaker
11. DC power jack for power adapter.
12. Pilot LED to show meter charging.
13. LCD display