RVV Gen II KO Service and Parts Manual
14
Touch Pad
The 12-button touch pad is located on the right side of
the door front. The touch pad contains the numbers 0-9,
plus the * key and the # key. All programming and sales
selections are done by way of the touch pad.
Delivery Sensor
The delivery sensor actually consists of two separate
components which work in conjunction with one another.
The emitter, below the product delivery port, emits an
infrared beam. The receiver, above the delivery port,
receives the infrared beam. When a product falls into the
delivery port, the infrared beam is broken, signalling to the
DMC board that a vend has been made.
Door Switches
There are two door switches mounted on the door’s
chassis. The door switches are actuated by the door each
time it is opened or closed. The following functions are
performed each time the vender door is closed:
1. All sold-out selections are cleared;
2. The greeting scrolls on the display;
3. If door switch reset is enabled in programming, the
resettable MIS counters will be reset if at least one
selection has been read;
4. A 5-7 minute delay begins after which the refrigeration
unit will come on; and
5. The door lights will turn on.
Vacuum Fluorescent
Display (VFD)
The VFD, a two-line, 20-character per line display,
is located above the validator. All information to the
programmer and to the customer is conveyed on the VFD.
SECTION 2: Vender Component Explanation
Electronic Power Supply
The Royal Vision Vender Generation II uses an electronic
power supply which converts 115 volts AC (conventional
voltage) to 24 volts DC, to power the vender’s control
board. The electronic power supply is a major contributor
to the vender’s operation. Without it, the control board
cannot function.
LOCATION OF ELECTRONIC POWER SUPPLY: The
power supply is located in the bottom of the vender’s door.
It is contained in a metal tray which also holds the light
ballast and the fusebox assembly. To remove this metal
tray, remove the screw from each end of the tray with a
Phillips screwdriver.
WARNING: Before removing this
tray, remove power from the vender by unplugging the
main power cord from the AC voltage source (wall outlet)!
CHECK THE POWER SUPPLY AND FUSE: If upon
arriving at the vender the display is not lit, the coin
changer does not take coins or payout coins, and the door
lights are not lit, make sure the vender is plugged in. Next,
check the external 3-amp fuse for visual damage. Check
for continuity across the fuse with a voltage meter or
similar device. If defective, replace the external fuse.
1. Check the power going into the power supply at the
connected red and black wires. It should register 115
volts AC. If not, check all wiring leading up to this
point from the bottom of the vender’s door. The power
supply may not be the problem. There may be a broken
wire or bad connection.
2. If 115 volts is registered in Step 1, measure voltage
coming out of the power supply. The two-pin
connector at the VMC connected to position P5 should
register approximately 24 volts DC. If so, check the
control board; the power supply is good.
3. If 115 volts is registered in Step 1 and 24 volts is
NOT registered in Step 2, the electronic power supply
is probably bad. Unplug the vender, and unplug the
connections at the power supply (115-volt and 24-
volt side). Remove the power supply from the door.
Replace it with a new electronic power supply.
