Converting PCI tuner card

sivan_and · 8th August 2006, 04:44 AM

Is there anyway to convert a PC tv card tuner to receive PAL the card can only receive NTSC transmissions, ie by changing crystals ?
help appreciated..
TX

ido8bit · 8th August 2006, 10:55 AM

What card is it?

Every card I have seen does PAL and NTSC from the factory. The system is set by the software.

Try looking for a different version of the software, they may have disabled the PAL option in the USA version.

infinia · 8th August 2006, 07:00 PM

Hi
Just changing the Tuner Can and XTAL should do it. Most PC TV cards (80%) use a derivative of the BrookTree BT demod IC. Software flips the right bits. Lots of stuff on this subject found on the WWW. I usually use a VCR with the composite or S-Video input for best results anyway. Sound is usually the weak link on these type of cards, use any PCI sound card line in for stereo.
http://www.clavis.ne.jp/~listcam/files/l829a_a.pdf
Rockell Intl. bought BT
http://www.ituner.com/spectra/Bt878.pdf

edit May not need crystal replacement for newer generation of BT devices

sivan_and · 9th August 2006, 01:55 PM

Three cards needs to be converted.
Card (1)WinTV Chipset BT878KHF brought from USA (Internal PCI type).
Card (2)ATi Wonder USB(Philips chipset)
Card (3)Pinnacle USB (philips chipset)
Full details of (2) and (3) as soon as i get hold when iam 2 home...
anyway thanx all for the info...

infinia · 11th August 2006, 01:37 AM

Quote:

Originally posted by sivan_and
Three cards needs to be converted.

Card1) OK you are in luck, with card1 no crystal change needed. (pg 84 of data sheet) just the tuner can needs change, if not using a VCR. I believe there is open source software available for this.

Card2) ATI AIW the rumor was, works great with NTSC, but PAL had bugs on older software. I'm surprised they went to Phillips.

sivan_and · 11th August 2006, 01:25 PM

Quote:

just the tuner can needs change,

Therz a 4.0000mhz crstal inside the tuner.... change that ? any suggestions

infinia · 11th August 2006, 10:17 PM

No you have to change the whole tuner assembly (tin can). The 4MHz XTAL is the Tuner LO PLL reference. The IF frequency plan and IF Bandpass filter are all wrong. It's cheaper to change the whole thing if it's a seperate assembly right?
What are you doing? more info please.

sivan_and · 12th August 2006, 10:48 AM

OK i can do that... Is the tuner same for normal TV and tuner cards ?
its easy to get teleision tuner here..hope all tuning voltages will be same

sivan_and · 12th August 2006, 11:05 AM

Some pics...

sivan_and · 12th August 2006, 11:11 AM

pics..cont...d

8th August 2006, 04:44 AM	#1
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Converting PCI tuner card Is there anyway to convert a PC tv card tuner to receive PAL the card can only receive NTSC transmissions, ie by changing crystals ? help appreciated.. TX __________________ SivanandBalan

8th August 2006, 07:00 PM	#3
infinia diyAudio Member Join Date: May 2005 Location: Californication	Hi Just changing the Tuner Can and XTAL should do it. Most PC TV cards (80%) use a derivative of the BrookTree BT demod IC. Software flips the right bits. Lots of stuff on this subject found on the WWW. I usually use a VCR with the composite or S-Video input for best results anyway. Sound is usually the weak link on these type of cards, use any PCI sound card line in for stereo. http://www.clavis.ne.jp/~listcam/files/l829a_a.pdf Rockell Intl. bought BT http://www.ituner.com/spectra/Bt878.pdf edit May not need crystal replacement for newer generation of BT devices __________________ like four million tons of hydrogen exploding on the sun like the whisper of the termites building castles in the dust

9th August 2006, 01:55 PM	#4
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Three cards needs to be converted. Card (1)WinTV Chipset BT878KHF brought from USA (Internal PCI type). Card (2)ATi Wonder USB(Philips chipset) Card (3)Pinnacle USB (philips chipset) Full details of (2) and (3) as soon as i get hold when iam 2 home... anyway thanx all for the info... __________________ SivanandBalan

11th August 2006, 10:17 PM	#7
infinia diyAudio Member Join Date: May 2005 Location: Californication	No you have to change the whole tuner assembly (tin can). The 4MHz XTAL is the Tuner LO PLL reference. The IF frequency plan and IF Bandpass filter are all wrong. It's cheaper to change the whole thing if it's a seperate assembly right? What are you doing? more info please. __________________ like four million tons of hydrogen exploding on the sun like the whisper of the termites building castles in the dust

12th August 2006, 10:48 AM	#8
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	OK i can do that... Is the tuner same for normal TV and tuner cards ? its easy to get teleision tuner here..hope all tuning voltages will be same __________________ SivanandBalan


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8th August 2006, 10:55 AM	#2
ido8bit diyAudio Member Join Date: Jun 2005 Location: Melbourne	What card is it? Every card I have seen does PAL and NTSC from the factory. The system is set by the software. Try looking for a different version of the software, they may have disabled the PAL option in the USA version.

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