Texas Instruments TVP5154EVM - Manual (Page 33)

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10 Troubleshooting
10.1 Troubleshooting Guide
Troubleshooting
This chapter discusses ways to troubleshoot the TVP5154EVM.
If you are experiencing problems with the TVP5154EVM hardware or the WinVCC software, see Table 21
for available solutions.
Table 21. TVP5154EVM Troubleshooting
SYMPTOM CAUSE SOLUTION
At startup, the error message Cannot find The parallel port driver supplied with the Run Port95NT.EXE on the CD to install
DLL file DLPORTIO.DLL appears. EVM has not been installed. the driver.
Go to Edit
→
Property Sheets
→
TVP5154,
Analog Video page, select the correct
Wrong video input is selected. video input(s) and click Apply.
(The composite video input 1 is selected
by default.)
Blank screen Source is connected to the wrong input Connect source to the correct input
connector. connector.
Go to Edit
→
Property Sheets
→
TVP5154,
Output Control page, check the enable
YCbCr outputs or clock output is disabled.
YCbCr outputs and enable clock outputs
check boxes and click Apply.
Go to Edit
→
Property Sheets
→
TVP5154,
Wrong mode is selected for color
Synchronization page, set the Fsc control
subcarrier genlock output.
format to RTC and click Apply.
No color Go to Edit → Property Sheets → TVP5154,
GLCO pin is not set to output the GLCO Output Control page, set the drop down
signal. box labeled FID/GLCO (pin 23) to genlock
output (GLCO) and click Apply.
Go to Edit
→
Property Sheets
→
TVP5154,
Output Control page, set the YCbCr
Screen colors are only magenta and
Wrong YCbCr output format output format to 8-bit 4:2:2 YCbCr
green.
w/ITU-R BT.656 embedded sync mode
and click Apply.
Go to Edit
→
Property Sheets
→
TVP5154,
Mode Selection page, uncheck all
Auto-switch masks are not set correctly.
standards to be included in auto-switch
Video standard auto-switch does not work
processing and click Apply.
on the video decoder side.
Go to Edit → Property Sheets → TVP5154,
Video decoder is not in auto-switch mode. Mode Selection page, set the drop-down
box to multistandard and click Apply.
Click real-time polling in the Tools menu.
Video standard auto-switch does not work
Auto-switch polling is not enabled. Click Enable All and OK. This should be
on the video encoder side.
disabled if using a composite output.
SLEU069A – February 2006 – Revised July 2006 TVP5154EVM User's Guide 33
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