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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Sat Apr 23, 2022 2:38 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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Such the fragile tube!
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QQ图片20220423105001.jpg |
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Sat Apr 23, 2022 2:50 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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| Hulio wrote: | Are the tubes P16LNG22 ? If yes, I know a cheap set in good shape.
Are you located in Hungary ? |
Yes! I am in China
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Hulio
Joined: 15 Apr 2006
Posts: 494
Location: Belgium
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Sat Apr 23, 2022 9:44 am Post subject: |
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Do you have the RGB driver board of BG 808s ?
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Hulio
Joined: 15 Apr 2006
Posts: 494
Location: Belgium
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| Posted: Sat Apr 23, 2022 6:21 pm Post subject: |
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No, sorry. Myself, I use a Barco Cine 9.
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Sun Apr 24, 2022 2:46 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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| Hulio wrote: | | No, sorry. Myself, I use a Barco Cine 9. |
very rare machine！ Please look at the PM。
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 2:41 am Post subject: |
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There are new problems again. In order to save this 708, I bought a faulty C7. The deflection board in this C7 is faulty. I used the deflection board in 708 to replace C7. as a result, the deflection board of 708 was burnt out。
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:37 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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C7 and 708mm
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:41 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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When I reinstalled the deflection board of 708 back to 708, there was a fault light and the machine could not run
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:44 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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SF---deflection board fault
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:54 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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I checked the deflection board electric resistance and found that the resistance values of the two resistors could not be measured. have they been burned?
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:56 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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Resistance I
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:57 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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Resistance 2
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 4:00 am Post subject: |
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Where is the deflection board of 708 most likely to fail? thank you!
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 4:01 am Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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the deflection board of 708
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Hulio
Joined: 15 Apr 2006
Posts: 494
Location: Belgium
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| Posted: Thu May 26, 2022 10:36 am Post subject: |
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Keep in mind that not all boards from 708 can be swapped with the ones from C7.
Should your 708 be a data grade, yes. I guess yours is a vision version.
The best way to find out, is to check the part number on the module sticker (R762XXX). A C7 deflection board is R7627625, while the one from the 708 is R762447. Thus, not compatible.
I would try to revive the C7, instead of the 708 (newer components, higher bandwidth, more inputs etc).
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 1:25 pm Post subject: Barco 708MM “HOLD DOWN EHT” fault |
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| Hulio wrote: | Keep in mind that not all boards from 708 can be swapped with the ones from C7.
Should your 708 be a data grade, yes. I guess yours is a vision version.
The best way to find out, is to check the part number on the module sticker (R762XXX). A C7 deflection board is R7627625, while the one from the 708 is R762447. Thus, not compatible.
I would try to revive the C7, instead of the 708 (newer components, higher bandwidth, more inputs etc). |
The 708 is vision 708mm.
yes! I know they had a different number, but they looked almost the same, so I exchanged them. I am sorry!
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:08 pm Post subject: Re: Barco 708MM “HOLD DOWN EHT” fault |
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| kal wrote: | | bluemoonhu wrote: | | Resistance 2 |
That's a diode, not a resistor.
Kal |
Where is the fault？
Thanks！
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bluemoonhu
Joined: 16 Feb 2021
Posts: 259
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| Posted: Thu May 26, 2022 3:08 pm Post subject: Re: Barco 708MM “HOLD DOWN EHT” fault |
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| kal wrote: | | bluemoonhu wrote: | | Resistance 2 |
That's a diode, not a resistor.
Kal |
Where is the fault？
Thanks！
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