MCL2AV Tone Control

[JT]

Hello,

Is it possible to do local tone control adjustments while playing local sources? (the  main room system is inactive in this mode)  I have read the old MCL2 manuals, but can’t seem to find anything about the topic. (Except the independent volume control)
I have also tried to make some adjustments using BL1000;  2xsound + <> seems to affect the bass or treble. But it’s really hard to do this blindfolded. 

Any suggestions?

Thank you  

BR

 Jonas

[Guy]

JT wrote:

Is it possible to do local tone control adjustments while playing local sources?

I just checked the service manual and had a look at the MCL2AV circuit diagrams – I can’t see any tone control circuitry so I suspect that the answer is no.

In the past I used a MCL2AV and Passive stand-alone as a computer amplifier and controlled it with both MCP5500 and BL5000.  The remotes worked with two way IR but unfortunately I don’t remember testing the tone controls.

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[JT]

Hello,

Thanks for the reply.
I also checked the circuitry, and came to the same conclusion.

Playing the main room sources, “sound” will certainly adjust the Beomaster.
However, sound x times seems to do something in “local mode”. (When main room BM is asleep) It appears to be one or two settings in addition to volume control.

At the moment I am using a local non-beo source (radio+shift+7) . This doesn’t allow two-way communication via Bl5000.

Maybe I should try to connect a data link compatible beogram or beocord.

[Guy]

JT wrote:

At the moment I am using a local non-beo source (radio+shift+7) . This doesn’t allow two-way communication via Bl5000.

As far as I can remember it worked with a non-B&O source.

When I first set it up about 15 years ago my only two-way remote was a MCP5500, so perhaps I mis-remembered regarding the BL5000 – not totally sure now!

Sorry to ask, but are you sure that the BL5000 is in 2-way mode for audio, and that the two-way IR actually works (BL5000 capacitors can fail causing two-way to stop working).

If I have time in the coming days I will try to dig out an MCL2AV and double check with my BL5000.

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[Guy]

Update:  I just set up an MCL2AV (Type 2032, SW2.3) with just power supply and IR transceiver connected (no other input or output as these are not required for a simple test).

With BL5000 (set to two-way control for both AUDIO and VIDEO), full two-way IR volume control is possible (i.e the BL5000 display shows the numerical value of the volume, changing as the button is pressed).  Also, pressing STATUS will show the selected source A.TAPE or CD depending on whether SHIFT RADIO 6 or 7 has been selected.

Pressing SOUND toggles between just VOLUME and LOUNDNESS, the latter of which can be turned ON/OFF using the up/down arrows with the display showing new status.  (There is no display, nor control, of BALANCE, BASS or TREBLE)

EDIT:  So it would seem that 2-way control is possible – but maybe only with my MCL2AV Type No and SW version, plus the fact that it was not connected to a full masterlink system.  Also, when you initially used the BL1000 and pressed SOUND twice followed by arrows, you were possibly turning the LOUDNESS on and off, hence noticing the slight change of tone.

• This reply was modified 22 minutes ago by Guy.
• This reply was modified 20 minutes ago by Guy.

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