Troubleshooting
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9
Troubleshooting
This section discusses ways to troubleshoot the TVP5158EVM.
9.1
Troubleshooting Guide
If you are experiencing problems with the TVP5158EVM hardware or the VCC software, see
Table 13
through
Table 16
for available solutions.
Table 13. Troubleshooting Setup and General Issues
Symptom
Cause
Solution
TVP5158EVM Software
Previous version was
Use "Add or Remove Programs" in Windows Control Panel to remove
Installer reports that
installed
previous version of TVP5158EVM Software. Run SETUP.EXE again.
previous version must
be uninstalled
On connecting USB
EVM was not
Disconnect USB cable between PC and EVM. Wait 3 seconds. Reconnect the
cable, green "connected
recognized on the USB.
USB cable. Green "connected LED" near USB connector should light.
LED" does not light.
On connecting USB
Jumper W6 has been
Install jumper W6 near USB connector. Disconnect USB cable between PC
cable, New Hardware
removed.
and EVM. Wait 3 seconds. Reconnect the USB cable. Green "connected
Wizard appears
LED" should light.
VCC application has
USB polling rate is too
Conect EVM directly to a laptop/desktop USB port instead going through a
slow response time.
slow.
docking station. Property Pages can not be refreshed using Read All buttons
at more than about a 1-Hz rate.
Nothing seems to
Clicking Read All button
Property Pages can not be refreshed using Read All buttons at more than
happen when I click
too frequently.
about a 1-Hz rate.
Read All repeatedly.
Table 14. Troubleshooting with THS8200 and CompositeVideo Output
Symptom
Cause
Solution
USB: Device Not Found
EVM was not
Disconnect USB cable. Wait 3 seconds. Reconnect USB cable. Green
error message
recognized on the USB.
"connected LED" should light. Click continue
USB: I2C Error Code 1
5V power not present
Connect 5V power supply to EVM. Click Continue.
error message. An I2C
EVM hardware reset
Normal occurrence. An I2C error will occur if the hardware reset button is
acknowledge error has
button has been
pressed while real-time polling or property page auto-update is active. Click
occurred. See reported
pressed.
Continue.
I2C slave address and
I2C slave address
Check that jumpers W2, W1 and W0 are connected across pins 1-2 (L, L, L)
sub-address.
jumper setting and
to specify slave address 0xB0 (Set jumper W0 across pins 2-3 (L, L, H) to
program setting do not
specify slave address 0xB2 for a cascaded 2nd TVP5158EVM.) Exit VCC
match.
application. Restart VCC and select the correct I2C slave address.
I2C bus master
Check that jumpers W3 and W4 are connected across pins 1-2 to select USB
jumpered incorrectly.
as I2C master.
No video output
Wrong video input is
Click on System Initialization in the Tools menu. Browse to
selected.
TVP5158EVM_YPbPr_Output_Setup.CMD. Click on the dataset named
"Select Ch-X Video Input". (X is the channel to be displayed.) Click the
program button.
TVP5158 is not locked
Click on Property Sheets -> TVP5158 in the Edit menu (see
Figure 26
). Lock
to video signal.
status LEDs should both be green. In main window, click buttons
Decoder1,...,Decoder4 to see the lock status of each decoder (see
Figure 3
).
for numbering of video inputs.
THS8200 is not
Click on Property Sheets -> THS8200 in the Edit menu. Pixel count/line count
receiving BT.656 data
status should be 858/525 for NTSC or 864/625 for PAL (see
Figure 27
).
correctly.
THS8200 programmed
Click on Property Sheets -> THS8200 in the Edit menu. Click DTG tab. Frame
for wrong standard.
Size should be set to 525 if source is NTSC or 625 if source is PAL. If not,
click Real-time polling button in the Tools menu.
Horizontal instability in
THS8200 Video Triple
On TVP5158 Output Formatter property page, check the Line-Locked Output
displayed image
DAC requires a
Clock check box. Set the Port A Channel Selection drop-down box to select
line-locked clock.
the video input for display. Line-Locked Output Clock is required when using
non-interleaved mode and THS8200.
No audio
Wrong digital audio
Set jumper W9 across pins 2-3 to hear the record output (SD_R) or across
output selected.
1-2 to hear the mixer output (SD_M).
34
TVP5158 Evaluation Module
SLEU108 – November 2009
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