Service manual
P-3
06/2005
All programming of the V21 control board is done in the service mode. To enter the service
mode open the vendor door, nd the service mode button located on the control board, then
press and release the service mode button. To scroll though all the service modes, use
selection button one.
The rst three selection buttons are used to navigate through the programming as follows:
THREE-BUTTON PROGRAMMING
The controller will automatically return to the Open-Door Sales Mode if:
1. No information from the selection switches is received within approximately 30 seconds.
2. The service mode button is pressed a second time.
3. The (Exit) button is pressed.
When the programming is entered, any established credit is returned. When and if the door
is closed, the controller will exit the service mode and return to the sales mode.
MIS Data
As soon as the outer door is opened, the non-resettable MIS data will be displayed if
no errors exist. “ XXX” will ash for approximately 30 seconds, indicating the total
number of units the machine has sold. After 30 seconds, “ XX.XX” will begin to
scroll, indicating the total dollar amount the machine has accumulated. NOTE: Pressing
selection button one will eliminate the 30-second wait time and advance you immediately
to the “CASh XX.XX” scroll.
To access MIS data by individual selection, press selection button two during the “
XXXX” or “ XX.XX” scroll. Use selection button one to advance forward or backward
through the selections. Please see page PG-7 to choose between count by selection or
count by price.
NOTE: The MIS data that is displayed when the outer door is opened (“ XXXX” and
XX.XX”) is non-resettable. This data is accumulated over the life of the control board
and can only be changed by replacing the control board.
FIGURE 1
Button Description Usage
Selection Button 1 Up/Down Increase/Decrease, Next/Previous
Selection Button 2 Enter Go to sub-level, activate function
Selection Button 3 Exit Return to previous level, exit, save










