DIGITAL DELAY 1023-SCR, Quick Start Manual, Page: 6 / 8

6
The Keypad
The keypad is made up of a row of five keys. Each of the five keys has three functions with the exception of the High
Gear button which has four functions. The main function of each key is shown inside the box, which is around each of the
keys. With the exception of the (Tach/Settings/2nd) all of the keys can perform their main function with the engine on or off.
The main function of the (Tach/Settings/2nd) key changes depending on whether the engine is on or off. Below is a list of all
the keys and their functions.
Tach/Settings/2nd
When the engine is on, the (Tach/Settings/2nd) key only functions as a selection key to switch between the tach and
the settings. When the engine is off, the (Tach/Settings/2nd) key’s main function is to allow the 2nd function of the other four
keys to be selected. This is done by first pressing and holding down the (Tach/Settings/2nd) key. While holding down this
key press one of the other keys. This will select their second function. The last function of the (Tach/Settings/2nd) key is to
turn off the replay mode. This is explained in greater detail in Understanding The Replay Tach.
Right Arrow
The main function of the (Right Arrow) key is, to either change the hundredths place when in Time mode, or to select
RPM mode. The second function of the (Right Arrow) key is to turn the replay on. To turn the replay on, hold down the
(Tach/Settings/2nd) key and then press the (Right Arrow) key. The last function of the (Right Arrow) key is, when in replay
mode, to switch between RPM and Time. This is explained in greater detail in Understanding The Replay Tach.
Center Arrow
The main function of the (Center Arrow) key is to either change the tenths place when in Time mode, or to change the
hundreds place when in RPM mode. The second function of the (Center Arrow) key is to select either High or Low RPM and
Time range. To select the High or Low range, hold down the (Tach/Settings/2nd) key and then repeatedly press the (Center
Arrow) key until the desired setting is shown on the display. When in High range the selectable RPM range goes from 800 to
12700 and the selectable time range goes from 0.01 to 12.99 seconds. When in Low range the selectable RPM range goes from
800 to 9900 and the selectable time range goes from 0.01 to 9.99 seconds. The last function of the (Center Arrow) key is,
when in replay mode, to start and stop the scrolling of the replay. This is explained in greater detail in Understanding The
Replay Tach.
Left Arrow
The main function of the (Left Arrow) key is to either change the seconds place when in Time mode, or to change the
thousands place when in RPM mode. The second function of the (Left Arrow) key is to match the number of cylinders the
engine has to the setting of the box. To change the cylinder setting, hold down the (Tach/Settings/2nd) key and then
repeatedly press the (Left Arrow) key until the number shown on the display matches the number of cylinders of the engine.
The last function of the (Left Arrow) key is, when in replay mode, to jump to the shift points. This is explained in greater
detail in Understanding The Replay Tach.
Shift Test
The main function of the (Shift Test) key is to enable the driver to override the box and activate the shifter manually
by just pressing the (Shift Test) key. This is only allowable when the box is not running a shift cycle. The second function of
the (Shift Test) key is to select which shift you want to review or change the setting of. To use this function , first press and
hold the (Tach/Settings/2nd) key then press repeatly the Shift Test key untill the number on the display matches the shift you
desire to view or change. Changing the setting is done with the three arrow keys. The last function of the (Shift Test) key is,
when in replay mode, to change the speed of the replay. This is explained in greater detail in Understanding The Replay Tach.