Sonciview 8000 HD no display, how I fixed one.

[jets]

Had a buddy say his SV8K had no display. He said it failed slowly over time in that a reboot would fix it until, finally it had no display at all. Also HDMI out did not work, I did not test other video out. Both green LED's on PCB would still light.

I checked all voltages on the PSU and noticed the 12VP was out so I replaced capacitors C67 and C68, rated 220uF, 16VDC. 12VP came back but still no display.

On further investigation caps C64 and C66, rated 470uF, 10VDC were bad. I think the 5VP appeared OK on the DVM but checking the associated caps using a cap meter showed they had failed. Replace those two and the unit came back up, both display and HDMI.

I have repair a $h!t tone of SV8K and have never seen the display fail. Kind of weird both circuits were VP circuits.

Anyway I hope this help someone one day. Probably me when I forget I fixed one before LOL.

:thumbsup::D

[The Noof]

One of the things that makes the 8000 such a good unit is the fact that they were such a pleasure to own:that gave smart people the incentive to fix them & share the knowledge gained.Best unit of all time

[seadog]

I came across this information on a forum search as to problems with the Sonicview 8000 HD receiver having no display. If possible could I please obtain information as to the actual value of capacitor C10; I am reading it is a small 470uf 10vdc component but I cannot locate such on the circuit board. There is an electrolytic identified as C10 with a value of 1000mfd@10Vdc (top is bulged so is bad). Is there an actual 470mfd 10V cap on the board? I can upload a photo of the board if required. Thanks

[auggie]

I came across this information on a forum search as to problems with the Sonicview 8000 HD receiver having no display. If possible could I please obtain information as to the actual value of capacitor C10; I am reading it is a small 470uf 10vdc component but I cannot locate such on the circuit board. There is an electrolytic identified as C10 with a value of 1000mfd@10Vdc (top is bulged so is bad). Is there an actual 470mfd 10V cap on the board? I can upload a photo of the board if required. Thanks

This may help: https://www.satfix.to/showthread.php?179421-SV8000HD-(SV8K)-power-supply-repair-guide

(https://www.satfix.to/showthread.php?179421-SV8000HD-(SV8K)-power-supply-repair-guide)Or this: https://www.satfix.to/showthread.php?121632-SV8000-HD-Power-Supply-Mod-by-Canuck

[seadog]

Thank you auggie! The board itself is even older than that quoted on the repair info so I am going to replace all caps and see how that turns out.

[staticrider]

I sent PM. Static

[Spliceguy]

Over time the 8000 display brightness will become dimmer and dimmer. To the point of barely able to see. Swapping out with a good spare front section will tell you if that is the problem. There is also an adjustment in settings to brighten the display.
If it is a cap, here are the values.

C5 150uF 400V (Big One) (100uF - 400V Newer PS)

C7 1uF 50V

C9 22uF 50V

C10 1000uF 10V Pin 7 +3V3

C11 1000uF 10V Pin 7 +3V3

C11A 470uF 16V

C12 2200uF 10V Pin 5 +5V (1000uF on the SY0172F board)

C13 2200uF 10V Pin 5 +5V

C14 1000uF 10V Pin 5 +5V

C15 1uF 50V

C16 1000uF 16V Pin 1 +12V (4 Ch To PSK)

C17 470uF 16V Pin 1 +12V (4 Ch To PSK)

C18 470uF 35V Pin 4 +22V

C19 470uF 35V Pin 4 +22V

C20 470uF 35V Pin 4 +22V

C21 470uF 35V Pin 3 +22V

C22 470uF 35V Pin 3 +22V

C23 470uF 35V Pin 3 +22V

C24 1000uF 10V Pin 7 +3V3

C63 22uF 50V

C64 470uF 10V Pin 11 +5VP

C65 1uF 50V

C66 470uF 10V Pin 11 +5VP

C67 220uF 16V Pin 10 +12VP

C68 220uF 16V Pin 10 +12VP

C69 47uF 50v Pin 1 -30VP

C70 47uF 50V Pin 1 -30VP

C71 22uF 50V