Pansat 3500SD Capacitor Replacement Manual

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There are several indications that you may need to replace the c13 and c14 capacitors in your 3500
receiver. The most common symptom is a sudden loss of picture reception and the QUALITY
reading constantly jumping anywhere between 0 and 99%.
Other symptoms reported have been loss of some stations along with numerous bad or scrambled
signal messages, constant pixalization of picture, and sudden low drop of Quality signal when
nothing else has been changed, etc. Note, while these last symptoms may indicate a capacitor
problem they can also be caused by other things.
As long as you are in the process you should replace both capacitors even if you think only one is
bad.
The process to replace is very simple and does not require any electrical knowledge other than how to
use a soldering iron.

What you need:

1) Two replacement capacitors with the value of 470uf16v or 470uf/35V*
Use two of the same value, do not mix values.
2) A soldering iron. (not a solder gun)
3) Electrical Solder. (Rosin Core Solder)
4)
Phillips screwdriver.
Optional:
Vacuum Desoldering Tool, Desoldering Bulb or Desoldering Braid.
Rosin Soldering Paste. (Flux)
Needle Nose Pliers.
Wire cutter.
*I prefer the 470uf/35V capacitor (Radio Shack #272-1030) for its larger voltage value.
All the items above are available from electronic stores such as Radio Shack.

How to:

First thing to do is turn your receiver OFF using the switch at the rear of the unit. Then disconnect all
attachments at the rear and unplug the power to your STB.
Remove the top of the STB; there is one large screw on each side and one smaller screw at the rear
of the cover, top center.
Pansat 3500SD C13 - C14
Capacitor Replacement Guide
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Summary of Contents for Pansat 3500SD

  • Page 1 Pansat 3500SD C13 - C14 Capacitor Replacement Guide There are several indications that you may need to replace the c13 and c14 capacitors in your 3500 receiver. The most common symptom is a sudden loss of picture reception and the QUALITY reading constantly jumping anywhere between 0 and 99%.
  • Page 2 With the cover removed this is how your receiver looks inside: Here is the area you are looking for, the red arrows point to C13 (right) and C14 (left)
  • Page 3 You should look for outward signs of a blown capacitor, while a bad cap may not always show signs they usually do. In this case C13 (right side of picture) was the culprit. Look at the tops of all the other caps and you can see they are all FLAT.
  • Page 4 Ok, back to removal and repair. The next thing to do is disconnect three connections. First is the ribbon cable at bottom left, it disconnects from the side that is attached to the larger “green” board. Next is the two power connections, one at the top of the board and the other at the switch at the rear of the chassis.
  • Page 5 After making all the disconnects remove the two screws on the right side of the board. The left side of the board is mounted on plastic stand-offs that have flexible “wings” at the top. I use needle nose pliers to hold these wings together so that I can lift the board off the stand-off. Here is what you have once the board is lifted out of your STB.
  • Page 6 Pay attention to the orientation to the capacitors before removal. These capacitors are polarized, one side is marked ( - ) or minus, is usually striped on that side also. Be careful to put the new capacitors in the same way as the originals. Polarity is also marked on the board, with the negative position indicated by a white dot.
  • Page 7 Apply a bead of solder to all four legs and then clip off the excess length with a pair of wire cutters. Here is your finished product as seen from the solder side.
  • Page 8 Here is the finished board as seen from the component side. Notice the striped, minus side of the capacitors is aligned with the white dot on the board. That’s it! That’s all there is to it, easy wasn’t it. Now all that is left is to reverse the disassembly procedure to put your STB back together. Place the board over the plastic stand-offs and press firmly into place.

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