Daktronics T-7060 Touchpad - Manual (Page 15)

Maintenance & Troubleshooting 9
Problem Possible Cause Solution/Items to Check
On-deck:
Bad lane module input
1) Disconnect the touchpad from
the lane module and clean the
connections if not already
performed.
2) Measure the voltage between
the red and black connectors on
the TOUCHPAD input of the
lane module:

If the voltage is 0 V DC, the
touchpad input on the lane
module is probably bad.
Swap the module with one
known to work correctly to
verify. Contact Daktronics
to order a replacement lane
module if needed.

If the voltage is 0.25 V DC,
it is probably a shorted
touchpad. Refer to Possible
Cause: Shorted Touchpad.
In-deck:
High resistance in the cable
between the deck plate and
lane interface, the termination
of the cable to the green
phoenix connector, the mating
of the green phoenix
connector onto the lane
interface, or a bad touchpad
input on the lane interface

With the touchpad connected,
use a voltmeter to measure V
DC on pins 1 and 5 of the green
phoenix connector. If the
reading is 0.25 V DC at the lane
interface and 0 V DC at the
deck plate, there is a break or
high resistance in the cabling or
termination of the cable to the
phoenix connector.

With the touchpad
disconnected, use a voltmeter
to measure V DC on pins 1 and
5 of the green phoenix
connector. If the reading is 0 V
DC or close to it, it is probably
corrosion between the green
phoenix connector and the lane
interface, or a bad touchpad
input on the lane interface.

In either instance, contact
Daktronics using the information
provided in Section 5.
Shorted Touchpad
If a shorted touchpad is suspected,
Contact Daktronics using the
information provided in Section 5.