I have a SG2100 that will not respond to anything. I tried resetting it, but the led doesn't even light up any more, nor does it respond to pushing both buttons when powering on the FTA box. Any chance of fixing this thing??
timmy,
The two relays look like plastic rectangles, about 5/8' long (probably black, or grey), on the cicuit board. One is for West move, the other is for East. They function as electromagnetically operated switches. The circuit board sends 12 volts at low current to the relay coil, transferring the contacts from their normal state to their closed state (throwing the switch), which sends a higher current to drive the motor. If both relays become fused (stuck) in the closed state it will create a very low resistance (Short) across the power supply causing the unit to not function. As mentioned by AcWXRadar, these relays are somewhat light duty, but I think they should last quite a while if not abused. One way to abuse these relays is when moving the dish in one direction, then immediately reversing to the opposite direction. Doing this repeatedly WILL overheat, and fuse the relay contacts. If you have multiple sats programmed in your reciever, which is likely the reason you have the H-H Motor, and channel surf while in the "All Satellites" mode, the motor will be reversing repeatedly as it attempts to goto whatever sats each of those channels are located, and the relays will fuse eventually. This is how I fused the contacts on my SG2100. To avoid this I don't use the All Satellites mode when surfing.
Now to the relays. A direct replacement I found is Song Chaun 842-1C-S 12VDC. I bought them on fleabay from Budget-Electronics-Online. (Song Chaun 12VDC 3A SPDT PCB Mount Relay)
I replaced mine 18+ months ago, and it's still working well.
Greg
Is it dangerous for the SG2100 to remove the cable from the receiver with the receiver powered on? If so, what component in the motor would get damaged? Do they have a fuse? Thanks.
I brought it in to the receiver, with different cable, but same thing. Might try the board route.
1ADAM12: How much to repair?