Unitec POS4000/V2 - Manual (Page 109)

POS4000
Document Number: POS4003 101
Document Title: POS4000/V2 Operations Manual
9.8 "Reenter Code" Signal Does Not Work
The "Reenter Code" signal should be activated for several seconds every time an
incorrect code is entered at the car wash entrance. If this does not occur, use
the "Reenter Code" relay test described in the Interface Test section. If this relay
test fails, replace the interface board.
9.9 Bill, Coin or Audit Inputs Do Not Work
Audit counters are configured for either 24V AC/DC or 120V AC. To determine
the voltage input setting, refer to the "POS4000 Interface Board Wiring Diagram"
in the back of this manual. The input voltage jumper determines the acceptable
input voltage range. The board will not work if the wrong voltage is applied and
the board WILL BE DAMAGED if 120V is applied to an input jumpered for 24V
board.
To test the audit inputs, put the interface board in the test mode and perform the
audit input test as described in section 9.2.2. If the audit test fails, replace the
interface board.
9.10 Main Console Keys Do Not Work
If the console keys do not function properly, remove power from the main
console for a short period. After power is returned to the main console, check
key functions again. If one or two keys still do not function (no beep when
pressed), replace membrane keypad or keyboard PC board. If a row or column of
keys fails to function (no beep when pressed), check the keypad ribbon
connection between the keypad PC board and main PC board inside the console
(25 wire ribbon cable). If the ribbon connections and cable are OK, it is likely a
main PC board failure. Replace main PC board in main console.