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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Sun May 01, 2011 8:59 am Post subject: 909 v 808 focus yokes |
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Are there fundamental differences between the two or are they similar.
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zGman
Joined: 22 May 2006
Posts: 599
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| Posted: Sun May 01, 2011 6:51 pm Post subject: |
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909 has two 6 pole astig windings = 4 more wires. The magnetic field seems different,
the 909 coils ended up further back on the tube neck for best overall focus. The values
for inductance and resistance are similar...
G
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Sun May 01, 2011 10:09 pm Post subject: |
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| zGman wrote: | 909 has two 6 pole astig windings = 4 more wires. The magnetic field seems different,
the 909 coils ended up further back on the tube neck for best overall focus. The values
for inductance and resistance are similar...
G |
So the projector astig board would need to be able to address the six pole aspect of these coils. I have not seen 909 focus yokes are there 13 wires on the connector that is the 9 of the 808 plus the four extra for the additional astig windings.
I wanted to use the 909 focus yokes in an 808 chassis do I need to rewire the 909 focus yokes or can I drop them straight in. In doing so only use the 4 pole aspect of the astig windings.
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zGman
Joined: 22 May 2006
Posts: 599
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| Posted: Mon May 02, 2011 4:03 am Post subject: |
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Be sure to get the original connector / wiring harness with the 909 coils.
I don't know the pinout - but I am sure there are people here with the service manual.
G
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Drew Packard
Joined: 12 Mar 2006
Posts: 43
Location: Monroe, Washington
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| Posted: Mon May 02, 2011 5:55 am Post subject: |
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There are 13 wires on these 909 coils....
Drew
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Wed May 04, 2011 11:24 pm Post subject: |
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Would anyone be able to help with the pinouts for Barco 808s focus yokes and 909 focus yokes. I have an 808 and 909 manual but they does not contain this information.
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Mon May 16, 2011 9:57 am Post subject: |
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bump
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