Remote Disassembled

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Background

The RM-F04 Remote Control supplied with the Humax HDR FOX T2 and Humax HD FOX T2 may need disassembling for various reasons, The main reason being that the Remote becomes unresponsive to key presses, even with new batteries.

You may also be just curious as to what is inside, Users have been known to disassemble their products for this very reason

Warning

The RM-F04 Remote is not held together with screws, It is ‘Snapped’ together which make it quite difficult to take apart, It is not recommended that you dissasemble your Remote unless there is a very good reason, e.g. it has stopped working. There is a real possibility that the case could be damaged

Getting started

Remove the batteries and replace the cover, The case is held together with 12 ‘snap fit lugs’, 5 on each long side and 2 at the battery end, The locations of the 5 side lugs are shown in Photo 1. The only tools required for the disassembly are two thin metal objects, I used two No. 22 scalpel blades (0.4mm thick) or possibly a feeler gauge used in car maintenance, Although it is possible to use a thicker tool it will inevitably damage the case as the gap between the two halves of the case is very small.

Locate a centre lug on a long side using photo 1 and insert a scapel blade at that point, leaver the bottom half of the case outwards and a ‘click’ should be heard as the wedge (Photo X) disengages, Keep this scalpel in place while you the next lugtowards the battery end, Do the same procedure on the second lug, Photo X shows two blades in place, It should safe to remove the blades now.

Disengage the last side lug at the battery end, Now locate he battery end lug (Photo X) nearest to the lugs already opened and open it, Followed by the second battery and lug.

Work up the other side of the case to the middle lug prizing the case apart as you go, Remove the last 4 lugs, NOTE there are no lugs on the other short side but there is a hinge arrangement

With buttons facing down, remove the back of the remote, Remove the Printed Circuit Board buy gently levering it away from the corner plastic lug (Photo X)

Clean the PCB (Photo X) with Methylated Spirits and a cotton bud the areas of interest are the ‘fingers’ as shown on PCB detail Photo X

Next use with Methylated Spirits and a cotton bud to clean the wound ‘Waffles’ on the underside of the button Photos X and Y

Clip PCB back into place, Then Hook the two halves of the case back together at the non Battery end and then snap all other lugs into place