Topic: Sony RMR-D100 coax/toslink digital i/o adaptor

[leegeddy]

i've seen one used in the field (Wiltern Theater in LA) since there's an ac outlet in one section. but i wanted to see if these could be dc powered.

sure enough, i got hold of one and opened it up. there's an input transformer > bridge rectifier for the input voltage converting ac > dc. i measured the dc voltage....9v. hmmm, i could easily bypass the ac>dc converter and simply tap a 9vdc to the input side. well, i got it to work, but don't have anything that accepts toslink.

i also removed the ac transformer which really lightened the box by a huge factor.

anyone with an outboard adc and a jb3 wanna give this a run and report back?

marc
 

[fozzy]

I got a RMR-D3(looks identical except for the black vs. grey 7pin) that i'm sure is 9v as well.  I'll bust it open and rig something up.  I can't verify that mine is 9v b/c it was a euro model running off 220. 

[hexyjones]

ha - I have one of these that is sort of screwed up, too...there is a thread about the fuse somewhere...

edit: http://taperssection.com/index.php?topic=30634.0

Ok - this might be my "something to do" this week...

Thanks leegeddy!

edit2 - if you happen to have any pictures of where you made the tap - that would be cool...

[fozzy]

ha - I have one of these that is sort of screwed up, too...there is a thread about the fuse somewhere...

edit: http://taperssection.com/index.php?topic=30634.0

Ok - this might be my "something to do" this week...

Thanks leegeddy!

edit2 - if you happen to have any pictures of where you made the tap - that would be cool...

You should be able to provide power directly after the transformer

[leegeddy]

I got a RMR-D3(looks identical except for the black vs. grey 7pin) that i'm sure is 9v as well.  I'll bust it open and rig something up.  I can't verify that mine is 9v b/c it was a euro model running off 220. 

fozzy;

see what your secondary coil on the xformer is outputting. i measured 10vac. i'd bet that yours would be somewhere in that ballpark.

marc

[hexyjones]

Well - if i apply some DC - the thing seems to come on...i.e. the green light comes on...

But, no light from the toslink...I tried to pass a coax signal - that wouldnt work either...

I dont have the 7 pin dongle attached to the board at the moment - perhaps that needs to be attached...?

Also - possible mine is just broken otherwise...

[hexyjones]

Just curious if anyone has actually gotten this to work...?

leegeddy - does your prototype actually work...?

[leegeddy]

Just curious if anyone has actually gotten this to work...?

leegeddy - does your prototype actually work...?

yes. i checked all outputs/inputs except for the toslink since i don't have any toslink cables. i can see the transmitter light, however.

i fed my M1 a digital signal from my home deck. the 7pin worked fine. i reversed it and fed my home deck a digi from my M1.

i was operating the RMR on a 9v li-ion battery.

marc

[hexyjones]

I wonder if it needs a DAT deck attached to work...

Not to keep bugging you on this one...but were you able pass a coax signal throught the unit, independent of the 7 pin...?

I have to dig out the dongle and check it with it attached...not sure if that would make a difference...also have to consider mine was dead to start with...but at least the light comes on now - thats a start...

But I think not seeing the TOslink light come on is a bad sign...

[leegeddy]

I wonder if it needs a DAT deck attached to work...

Not to keep bugging you on this one...but were you able pass a coax signal throught the unit, independent of the 7 pin...?

I have to dig out the dongle and check it with it attached...not sure if that would make a difference...also have to consider mine was dead to start with...but at least the light comes on now - thats a start...

But I think not seeing the TOslink light come on is a bad sign...

here's what i did:

1. home deck > coax out > coax IN on RMR:

-RMR 7pin OUT works
-RMR toslink OUT works (assumed, since i saw the transmitter light on)
-RMR coax OUT did NOT work (setup was: Oade 7pin > m1)

2. m1 > RMR via 7pin

-RMR coax OUT works
-RMR toslink OUT works (same assumption above)

marc

[Massive Dynamic]

I wonder if it needs a DAT deck attached to work...

Not to keep bugging you on this one...but were you able pass a coax signal throught the unit, independent of the 7 pin...?

I have to dig out the dongle and check it with it attached...not sure if that would make a difference...also have to consider mine was dead to start with...but at least the light comes on now - thats a start...

But I think not seeing the TOslink light come on is a bad sign...

here's what i did:

1. home deck > coax out > coax IN on RMR:

-RMR 7pin OUT works
-RMR toslink OUT works (assumed, since i saw the transmitter light on)
-RMR coax OUT did NOT work (setup was: Oade 7pin > m1)

2. m1 > RMR via 7pin

-RMR coax OUT works
-RMR toslink OUT works (same assumption above)

marc

Big +T to Marc for modding my formerly useless RMR to take 9V DC power. I use a 9V AC adapter for home use, but it will run on a standard 9V battery. I have not run any battery runtime tests, yet.

As for Marc's I/O tests, my tests had slightly different results. Here's what I did:
M1 > RMR via 7-pin >
-RMR coax out works
-RMR toslink out works

CD/DVD player > coax out > coax IN on RMR:
-RMR 7pin OUT works
-RMR toslink OUT works*
-RMR coax OUT works*
*toslink and coax outputs were only active when the M1/7-pin was in record mode

HHB830 > optical out > optical in on RMR:
-RMR 7pin OUT works
-RMR toslink OUT works*
-RMR coax OUT works*
*toslink and coax outputs were only active when the M1/7-pin was in record mode

Seems like this DC-powered box would allow you to take either optical or coax input to a deck connected via the 7-pin and provide a feed to both the coax and optical outputs.  If you don't have a Sony deck, it may not be very useful.

[leegeddy]

+t for the Calvin avatar!! (and the thorough test)

marc