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suddenly shutdown Barco 1209

 
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Thu Jul 02, 2020 2:04 pm    Post subject: suddenly shutdown Barco 1209 Reply with quote


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Hi,

I have a problem in my Barco 1209, the projector suddenly shutdown when the projector running.
After turn ON again, the projector running normal...time to time more often shutdown

Is it problem at EHT board or Quadrupler or else?

Pls advice

Thank you very much

Regards
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Hulio




Joined: 15 Apr 2006
Posts: 469
Location: Belgium


PostLink    Posted: Thu Jul 02, 2020 9:45 pm    Post subject: Reply with quote

Hello,

Same symptoms few months ago with a BR909. Changing the quad solved the problem.
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Fri Jul 03, 2020 1:13 am    Post subject: Reply with quote

Thanks for the inform my friend
Anyway...who has a stock for Barco 1209 graphics quad?

Thanks and keep healthy
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Sat Jul 04, 2020 4:42 am    Post subject: Reply with quote

I just check...I have one unit quadrupler ex Barco 1208, is same with Barco 1209 ?
Pls advice..

Thank you

Regards
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Hulio




Joined: 15 Apr 2006
Posts: 469
Location: Belgium


PostLink    Posted: Sat Jul 04, 2020 11:13 am    Post subject: Reply with quote

Internall, all quads are the same. But the mounting system can be different. You should compare it with the one in your 1209.
However, there is a compatibility issue between chassis-quadrupler-EHT board-splitter. Here the link: http://www.curtpalme.com/docs/BarcoServiceBulletin_R762716_New_EHT.pdf
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Sat Jul 04, 2020 1:10 pm    Post subject: Reply with quote

Many thanks for your inform.
It's very helping

Regards
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Sun Jul 12, 2020 5:30 pm    Post subject: Reply with quote

Hello,

I was change the quad and the projector running normal, but a few days later it's happen again, the projector suddenly shutdown every a few time.
Has another problem?
Pls advice
Thank you very much

Regards
Sukwoto
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Thu Jul 16, 2020 5:27 am    Post subject: Reply with quote

Hi,

I just trying to replace HV Splitter, but still not working, no picture at all.
One tube (green) not glow, I try to change neck board, but that tube still not glow and no picture
Pls advice.

Thanks
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km987654




Joined: 25 Jul 2007
Posts: 2852
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Thu Jul 16, 2020 9:37 am    Post subject: Reply with quote

Have you Checked 17.5v on SMPS?

Have you checked that the Maximum Horizontal Width is not too wide. That's also set from SMPS.
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km987654




Joined: 25 Jul 2007
Posts: 2852
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Fri Jul 17, 2020 8:40 am    Post subject: Reply with quote

In terms of checking the SMPS you can try the following

Check that the 17.5 volt line is adjusted correctly. You can also check the heater voltage which should be around 6.3 volts and make sure the maximum horizontal width is set correctly. Check the capacitors visually for any deformities, Check solder joints for cracks. That's a pretty good start.
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Tue Aug 25, 2020 9:03 am    Post subject: Reply with quote

Hello,

I just replace video signal after quad and splitter was replace previous.

All the tube are glowing now but still no picture.
Before video signal replace, one tube (green) is not glowing.
Red led at The EHT board still on.

Pls advice.

Thank you

Regards,

Sukwoto
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km987654




Joined: 25 Jul 2007
Posts: 2852
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Tue Aug 25, 2020 9:48 am    Post subject: Reply with quote

sukwoto wrote:
Hello,

I just replace video signal after quad and splitter was replace previous.

All the tube are glowing now but still no picture.
Before video signal replace, one tube (green) is not glowing.
Red led at The EHT board still on.

Pls advice.

Thank you

Regards,

Sukwoto


The red LED is a scan fail. I have attached the schematic for the scan fail circuit for an 808s. I would think its much the same for the 1209. Check these components,

EHT
RGB Driver
Vertical and horizontal deflection boards. Check for red LED.
All three deflection coils
Vertical Scan switch which is on the frame. This switch should be in if the projector is table mounted. Check its position and the position of the three horizontal switches.

Have you tried an external video source?



ScanFailCircuit.pdf
 Description:

Download
 Filename:  ScanFailCircuit.pdf
 Filesize:  57.28 KB
 Downloaded:  250 Time(s)

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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Thu Aug 27, 2020 6:04 pm    Post subject: Reply with quote

I just try to replace RGB Driver and Vertical and horizontal boards with my stock but still not working/no picture.
Is it the EHT board problem? Red led still On at EHT board
I don't have EHT board stock.
Anyone have stock? EHT board for Barco 1209/R762xxx

Thanks
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Sun Sep 13, 2020 11:45 am    Post subject: Reply with quote

Hello,

I just replace EHT board and video signal, but still no picture.
All tubes are glowing now.
Red led at vertical board turns ON.

Pls advice

Thank you
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sukwoto




Joined: 26 Feb 2016
Posts: 23
Location: Indonesia


PostLink    Posted: Sun Sep 13, 2020 1:05 pm    Post subject: Reply with quote

I just try to replace vertical board but still not working, the red led still ON

Thanks
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