JVC Receiver Question

[fjmet]

Trying to add a JVC RX-8030 rcvr to my Atlas DVR remote. The RX-9010 file give me most of the codes and allows most of the remote keys. It is device 163 and protocol ID 00 34 3A, but does not have CDR, DSP and Midnight Mode. These are available in Protocol ID 00 34 0A. If I try to use a Device Combiner, such as the RX-8020, to get both Protocol IDs, about half of the remote keys become unavailable. Is there any way to get these codes and still have enough remote keys available to do the job??? Also, my remote is just about out of Move/Macro space.
Frank

[mr_d_p_gumby]

If I try to use a Device Combiner, such as the RX-8020, to get both Protocol IDs, about half of the remote keys become unavailable. Is there any way to get these codes and still have enough remote keys available to do the job???

The number of keys available in an upgrade does not depend upon the protocol selected, whether it is the Device Combiner or otherwise. The Device Type determines the keymap. For the Atlas DVR, the Cable device type gives you the most available keys.

It is device 163 and protocol ID 00 34 3A, but does not have CDR, DSP and Midnight Mode. These are available in Protocol ID 00 34 0A.

If there are only these 3 keys, try using a dummy upgrade (no keys assigned) using JVC (00 34) device code 175 (0A), and then use keymoves. Remember the Atlas DVR uses new-style keymoves--it might be easier to let KM generate the keymoves for you.

Also, because of the new-style keymoves, you won't be able to use any keymoves assigned to an upgrade using the device combiner, because the device combiner is a 2-byte protocol.

[johnsfine]

I never remember which obscure model is which. Is the Atlas DVR one of the models with the severe limit on device upgrade size, in which case Frank's question makes sense, but I don't have any easy answer. Or is it a model with the more common rules, in which case the first part of Mike's answer is right.

[The Robman]

Remotes with the 50 byte upgrade limit are those with the 740 processor (ie, the Producer 8s and the Toplines). The Atlas DVR remote is one of the very latest remotes, which is why it was the newer keymove format.

[mr_d_p_gumby]

The Atlas DVR is very similar to the URC-6131 in terms of EEPROM storage. Like the standard (UEI-upgraded) URC-6131, it comes with a 1K EEPROM (non-learning). Frank's problem is just the normal one of running out of keymove/macro space.

Because it uses the "new-style" keymove format, normal EFC-type keymoves use 2 bytes (00 xx), so they tend to take up slightly more space than normal. The only way around this is to use the 1-byte format for keymoves where the byte is a button number. These can refer to built-in setup codes, or, if needed, to dummy upgrades with the desired functions mapped to arbitrary buttons. This is difficult to do at the moment because none of the JP! tools support this type of keymove.