BC-3500 Series - Rowe International

Section 4: Troubleshooting
Chart 030 - Shutdown – Out Of Service Lamp Lit
Display shows: CK L COIN DETCTR – OR – CK C COIN DETCTR
– OR – CK R COIN DETCTR – OR – CK COIN DETCTRS
One or more of the coin photodetectors is, or was, giving an incorrect signal. This
happened when the bill changer was in STANDBY. An incorrect change load may be in
one of the buckets, or one of the hopper motors may have been running in standby mode.
Are all three photodetector LED's lit?
Check the LED. Check the
wiring to the LED in the back of
the dispenser. Replace any unlit
LED with the part number
indicated in the Parts Catalog.
Is the +5VDC LED on the power control center ON?
NO
Refer to the chart
+5VDC FAILURE
+5VDC LED OUT
Are the transport
LED's ON?
YES
NO
NO
Is the +5VDC much
brighter than the other
three LED's?
NO
YES
YES
A defective +5V regulator VR802.
Replace it with the part indicated in
the components list for the power
supply board. See NOTE.
YES
Press the FUNCTION button. Does this message reappear?
NO
Check the O/G, O/BR,
and O/B wires from the
CCC (J4 & J5) to the
photodetector for an
intermittent connection.
IF OK
Check the B/R, BR,
and B/Y wires from
the CCC (P1) to the
hopper motors for
an intermittent short
to Ground. See
WARNING.
IF OK
Possible intermittent
photodetector or LED
on the dispenser.
IF OK
YES
Do any of the hopper motors run?
NO
Check the
operation of
the photodetector.
See Section
3 of this
manual.
IF OK
Check the continuity
of O/G, O/B, and
O/BR wires from the
CCC (J4 & J5) to
the photodetector.
IF OK
YES
Check the B/R,
BR, and B/Y
wires from the
CCC (P1) to the
hopper motor
for a short to
Ground. See
WARNING.
IF OK
Possible defective CCC.
Replace the CCC.
A harness problem exists.
Check continuity from the
main harness terminal block
to the dispenser (Blue and
Black wires).
A harness problem exists.
Check the continuity from
J203-2 and J202-8 to the
dispenser P402 (Blue and
Black wires).
Unplug J203 from the power
control center. Check for
+5VDC between pins J203-2
and J202-8. Is the voltage
between 4.5VDC and 5.5VDC?
YES
NO
An internal harness
problem. Replace the
power control center.
WARNING:
This circuit operates on the 120 VAC
line voltage. Always turn the power
OFF when you work on this circuitry.
Also, if any possibility exists that the
wall outlet may be wired backward, or
if the changer is connected to a wall
outlet via a 2-prong grounding adaptor,
pull the cord from the outlet before working
on this circuit. Serious electrical
shock could result otherwise.
NOTE:
If the +5 VDC LED is much brighter than the others, due to VR801 being defective, the transport cell LEDs, display LEDs,
and photodetector LEDs could be burned out.
25238801 4-33