Troubleshooting At The Plr615X Display - Daktronics PROLINK ROUTER 605 Series Installation And Maintenance Manual

7. Verify that the E r r message is not showing on the 7-segment display. Refer to
PLR605X 7-Segment Display (p.23). If an E r r message is displayed, perform the
corresponding action listed in the table under Error Messages (p.26).
8. Verify that the ProLink5 Port transmit indicator(s) for the active port(s) (DS7 and/or
DS9) is toggling as detailed in PLR6050 (p.2).
9. Verify the ProLink5 Port receive indicator(s) for the active port(s) (DS8 and/or DS10) is
toggling as detailed in PLR6050 (p.2).
Note: If two PLRs are controlling the ProLink5 section, both PLRs should be verified
independently. This can be done by having only one PLR connected to the
ProLink5 chain at a time and removing the ProLink5 SATA connection from
the other PLR.

Troubleshooting at the PLR615X Display

If a PLR-controlled display section shows either a blank module or incorrect data and if
IDM is not available or does not show any visible display errors, follow these steps:
1. Check that all LEDs are illuminated. If not, check VIN power. If VIN is within 7-24V, the
power is good and the PLR should be replaced.
2. Verify the DS1 (VIN), DS7 (3.3V), and DS8 (2.5V) power indicators are illuminated. If
DS1 is not illuminated, check VIN power. If VIN is within 7-24V, the power is good and
the PLR should be replaced. If DS7 or DS8 are not illuminated, replace the PLR.
3. Run the PLR test patterns as described in PLR615X Display Test Patterns (p.33). If
these do not display, there is a ProLink5 system error. Check the ProLink5 connections
between the module and the PLR to verify that the module has power. The module
self-test can be performed to verify the module's status. Refer to the corresponding
module manual for further information on the module self-test. If the ProLink5 test
patterns do display, there is an issue either at the ProLink6 level or in the control room.
4. Run the PLR self-test as described in PLR615X Self-Test Mode (p.34). If the self-test is
not completed successfully, replace the PLR.
5. Verify that each coax ProLink6 channel's pair of indicators is toggling as detailed in
PLR615X (p.16). If not, there is no ProLink6 feed from a master ProLink6 controller.
Check coax cable runs to previous PLRs to see if the link is broken. Ensure that the
master ProLink6 controller is connected and operating properly.
6. Verify that there are no error messages showing on the status LEDs. Refer to PLR615X
Status LEDs (p.31).
7. Verify that the ProLink5 port transmit indicator(s) for the active port(s) (DS6 and/or
DS15) is toggling as detailed in PLR615X (p.16). If the indicator is not toggling as
described, an incorrect translation table is preventing the PLR from receiving the
proper ProLink5 port configuration information.
8. Verify the ProLink5 port receive indicator(s) for the active port(s) (DS14 and/or DS16)
is toggling as detailed in PLR615X (p.16) If the indicator is not toggling as described,
a bad module connection to the first module may exist, or an incorrect translation
table is preventing the PLR from receiving the proper ProLink5 port configuration
information.
Diagnostics & Troubleshooting
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