What to do about the loss of console brightness in the Belkin F1DA108T (and 104), involving capacitors?

F5F Stay Refreshed Hardware Desktop What to do about the loss of console brightness in the Belkin F1DA108T (and 104), involving capacitors?

What to do about the loss of console brightness in the Belkin F1DA108T (and 104), involving capacitors?

What to do about the loss of console brightness in the Belkin F1DA108T (and 104), involving capacitors?

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gavinom123
Member

191

07-10-2016, 01:06 AM

#1

Both Belkins models are handling this situation - the 4 and 8 ports.
This setup uses VGA video.
All other components function normally.
The 8 port appears to be significantly worse than the 4 port.
Could the issue lie with the AC adapter? The 8 port might be drawing more voltage than the 4 port?
I would consider replacing the KVM cable, but the dimming differences between the two KVMs suggest it's not the cable.

G

gavinom123

07-10-2016, 01:06 AM #1

Both Belkins models are handling this situation - the 4 and 8 ports.
This setup uses VGA video.
All other components function normally.
The 8 port appears to be significantly worse than the 4 port.
Could the issue lie with the AC adapter? The 8 port might be drawing more voltage than the 4 port?
I would consider replacing the KVM cable, but the dimming differences between the two KVMs suggest it's not the cable.

T

TorcikPL
Member

177

07-13-2016, 09:33 AM

#2

Because VGA relies on Luma and Chroma, I'm wondering if the Luma issue might be the cause. This suggests the Luma voltage could be low, possibly due to a weak supply or a failing electrolytic cap.
Concerns about small caps are that they often go unnoticed, and I've experienced a recurring cap failure with my Channel Master STB w/S-video. It seems a faulty small cap is a likely suspect.

T

TorcikPL

07-13-2016, 09:33 AM #2

Because VGA relies on Luma and Chroma, I'm wondering if the Luma issue might be the cause. This suggests the Luma voltage could be low, possibly due to a weak supply or a failing electrolytic cap.
Concerns about small caps are that they often go unnoticed, and I've experienced a recurring cap failure with my Channel Master STB w/S-video. It seems a faulty small cap is a likely suspect.