Texas Instruments TVP5158 manual Troubleshooting Guide, Troubleshooting Setup and General Issues

Troubleshooting www.ti.com

9Troubleshooting

This section discusses ways to troubleshoot the TVP5158EVM.

9.1Troubleshooting 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
	sub-address.	I2C slave address	Check that jumpers W2, W1 and W0 are connected across pins 1-2 (L, L, L)
		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
			Submit Documentation Feedback

Copyright © 2009, Texas Instruments Incorporated