Assuming you have an SLNB installed probably model LMX 501 or LMX 500? IF the HD decoder is connected to a Unicable port on the SLNB then a simple swop of the decoders is all that is needed. Do away with the HB cable entirely. You are aware that the 3A does NOT have RF ports and cannot deliver RF out to any TVs? If you still want to view the Explora 2A content on the TV in the bedroom, then connect the HB cable direct to the TV RF IN. Make sure MC first break the current XV link between to old decoders. then after installing the new 3A, get MC to link them again under XV. Better to make the 2A the Primary. Make sure there are no network setting clashes between the two Explora decoders, Set the Explora 2A on default decoder 1 setting and the 3A on either decoder 2 settings or decoder 3 settings using the quick setup process.
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