ARDAC WACS-2 Specification and Adjustment Manual
44X477 Rev. 8
05/ 16/ 03 2-4
Refer to Figure 2-1 and replace the old EPROM / FLASH with the new one:
1. Make sure all power is disconnected from the bill acceptor.
2. Note the orientation of the EPROM / FLASH and pin-1 notch.
3. Using a small needle nose pliers, loosen one end of the EPROM / FLASH and then the other. Pull the
EPROM / FLASH from its socket.
(Observe proper ESD protection procedures)
4. Position the new EPROM / FLASH over the socket with the notch in the EPROM / FLASH at the pin 1 end
of the socket. This is the end of the socket closest to the DIPswitches.
5. Make sure all of the pins are straight and aligned with their respective sockets.
6. Be careful to prevent bending the pins or damaging the EPROM / FLASH, press the EPROM / FLASH into
its socket until it seats firmly.
Check the DIP Switch Settings and Re-set as Required
The microprocessor board used in the WACS-2 note acceptor has one bank of eight DIPswitches. These
switches set the System’s operating mode and enable or inhibit acceptance of certain notes. They are
located on the Microprocessor Board as shown in Figure 2-1. Refer to Table 1-1 and verify that the
DIPswitches are set properly for the required mode of operation and currency combination. If changes are
required, use a small non-conductive screwdriver or plastic switch setting wand to toggle the switches. Do
not use a conductive probe of any kind.
Insert Stacker Module into the Chassis
To assure proper operation of the WACS-2, the stacker cassette must be fully installed and locked into
position before the System is powered up.
When inserting the stacker cassette into the chassis:
1. Position the back of the cassette between the guide rails at the bottom of the chassis. (Fig. 2-2)
2. Make sure the latch pin on the right side of the stacker is under the stacker-retaining latch on the right side
of the chassis.
3. If the note acceptor has already been inserted into the chassis, note the stacker punch gear at the top front
corner of the cassette. Also note the punch drive gear at the bottom front corner of the note acceptor. Make
sure these gears mesh properly and without damage as the stacker cassette slides into the chassis.
4. Carefully push the cassette into the chassis until it seats against the back of the chassis, and the stacker-
retaining latch catches the latch pin.
Insert Note Acceptor Module
To assure proper operation of the WACS-2, the note acceptor module must be properly positioned, locked
in place, and the main harness connector of the acceptor must be fully inserted into its mating connector in
the chassis. The acceptor unit makes or breaks all connections when the acceptor is installed or removed
from the chassis.
When inserting the note acceptor into the chassis:
1. Position the back of the acceptor so the support rails at the top of the acceptor fit above the guide rails at
the top of the chassis.
2. If the cassette stacker has already been inserted into the chassis, note the stacker punch gear at the top front
corner of the cassette. Also note the punch drive gear at the bottom front corner of the note acceptor. Make
sure these gears mesh properly and without damage as the acceptor slides into the chassis.
