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10 February 2023 at 18:08 in reply to: Beovision 7 40 mk6 and Master Link – Strange behaviour – Volume levels #43642
GuyModeratorThat makes sense. I used to have my BC9500 in the same room as my BV3-32 and also wanted to keep the BeoCenter in A.Opt 1 to keep the two-way IR for my BL5000. This also allowed me to relay light commands from link rooms to the JBMedia Lightmanager in the main room.
A further thought: Is the ‘system modulator’ (designed to send the TV signal to link TVs) switched on? Perhaps this could be interfering with the TVs ML audio output. The manual explains how to switch it off but let me know if you can’t find it.
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GuyModeratorVery interesting – so effectively using the MCL2AV to convert between Datalink and Audio Aux Link so that it can be connected to an ML system using the BL1611.
I have often thought that the fact that the MCL2AV’s DIN sockets are line outputs as well as inputs would be useful, but never got around to testing anything like that, especially also making use of data.
Perhaps if you also add a PL cable from MCL2AV to BL1611 you could activate the TV by pressing play on the Beocord? You may have to change option settings to make this work, if indeed it is possible!
And I wonder if connecting an IR sensor and PL speakers to the MCL2AV will allow you to control and listen to the BC6?
All my ‘test’ equipment is packed away at the moment as our grandson is coming to stay, but I may well experiment with something similar next week.
PS: I like the power supply ‘workaround’ after the fault diagnosed in the other thread!
EDIT: And don’t you have a Beo4 to which you can add SHIFT to in order to test the non-datalink input selections? (Correction – on Beo4 SHIFT RADIO will not work. You need to add A.AUX, select using LIST, press GO and then number 6 or 7)
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10 February 2023 at 12:41 in reply to: Beovision 7 40 mk6 and Master Link – Strange behaviour – Volume levels #43640 GuyModeratorHI and welcome to Beoworld! Great system you have there, despite the little problems.
Can I ask if the connection between the BM7000 and BL Converter 1611 is just an Audio Aux Link (7-pin DIN) cable, or have you also connected a Powerlink between the two. If the Powerlink is also connected, have you tried disconnecting it and see how the system behaves then?
Are the TV and BS7000 in the same room, and if so have you considered connecting the Pentas to the TV to see how it behaves then?
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GuyModeratorA further thought: In the main room is the ML cable connected directly to the BS9000?
(I only ask this because you have a Passive in the Main Room, but I assume that this is just acting as an amplifier and should only be connected to the BS9000 by a Powerlink cable)
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GuyModeratorMaybe try checking the ML connections:
- Power down the complete system (unplug from mains, including main room BS9000 and Passive).
- Unplug all the ML connections.
- Make sure all the ML plugs are clean and undamaged and that there is no dust or fluff inside the sockets.
- Reconnect the ML cables
- Power the system up again.
- Re-do the option settings (put the main room in A.OPT 1, and each link room in L.OPT 6). If you need instructions for this, let me know.
Then try control again.
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GuyModeratorHi and welcome to Beoworld!
Have you tried swapping the IR sensors between the two passives, to see if the fault follows?
I would suspect cabling of one of the IR eye’s to be either incorrect or disconnected, either inside the sensor itself, or inside the DIN connector.
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GuyModeratorStrange – I would expect it to behave as Carolpa describes above.
A longshot, but is there a chance that the BS9000 could have been put in A.OPT 5 or 6 which may stop it working correctly as an ML audiomaster?
Try using the Beo4 to put the BS9000 in A.OPT 1. As before, with the system in stand-by, press the POWER button and LIST together. Then press LIST until OPTION is shown, press GO (centre button), and then press LIST to show A.OPT. Then press 1.
Then try Carolpa’s workaround again.
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GuyModeratorWith the PSU connected to my Type 2032:
Input leg of IC21 is reading 20.4V
I get the correct 12V and 5V readings at IC21 and IC20 outputs respectively.
Maybe carefully increase your supply voltage?
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GuyModeratorThe one that I used as a stand-alone was also Type 2020 – you can see the TV co-ax socket in my first photo.
I suppose that the 2020 is older therefore has more chance of a fault. Perhaps someone has connected an incorrect PSU in the past, or reversed the polarity and damaged IC20 (or one of the many extra components in the earlier model).
I just checked my PSU with no load and it measured 23V.
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GuyModeratorNot sure if this helps – I think this is quite a late model without the passive speaker or RF connections. The label says Type 2032.
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GuyModeratorHere you go: (I am getting better at finding things!)
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GuyModeratorHave you checked the connection/wiring of the IR eye? I think that is one of the ‘users’ of the 5.5V supply, hence could be shorting it out if wired incorrectly?
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GuyModeratorLook here under ‘Features’ ‘Emergency Operation’
https://beoworld.org/prod_details.asp?pid=631
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GuyModeratorAm I right in assuming that the MCL2 AV will start up and work stand alone without connection to a MCL master?
Yes – I used to use one like that as a stand alone amp for my PC. It even gave two-way IR in stand-alone mode!
Are you using the offical Power Supply, or the supply feed from an MCL2P? Mine worked with both.
EDIT: I know you’d like to see my neat cabling …. ?
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5 February 2023 at 05:54 in reply to: 4 Ohms Speakers on Beomaster 4500 or Beocenter 9300 Roth Beolink-Active #43548 GuyModeratorAlthough I am not sure that it was fitted with the same amplifier, I used 4 ohm Grundig Audiorama 8000s with my Beocenter 9500 extensively, with no problems. Although someone may be along to give a technical recommendation, I would simply keep volume levels low when initially testing.
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GuyModeratorI vaguely recall that pressing the power button slightly causes the TV to turn on. This is some sort of emergency mode in case you have lost the remote. A further slight press gets it to start searching for channels.
You could also try applying 5v to SCART pin 8 – this may turn on the SCART input.
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GuyModeratorThe service manual has a couple of paragraphs about precautions to take when changing the microprocessor and/or EEPROM modules (eg waiting 20-30 secs after connecting to mains before operating etc). Did you observe all the guidance?
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2 February 2023 at 10:08 in reply to: Are these two transformers the same? BeoSound Century 2000 #43462 GuyModeratorI think that the US tuner version adds AM frequencies if that’s any use to you!
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2 February 2023 at 09:43 in reply to: Are these two transformers the same? BeoSound Century 2000 #43460 GuyModeratorI’m unfamiliar with the names of the parts but I believe PCB 5 is the one after the transformer that sits under the door motor, correct?
Yes – to the left of the CD and at the back of the unit.
And 10 Mains seems to be the one where the power cable is plugged into and then has a wire that runs into the transformer, correct?
Yes to this too.
So if both those are the European versions then yes you can just change the transformer wiring.
Which version of the tuner board is fitted? – there are differences between US and European version here also. (Not related to voltage supply, but may affect functionality)
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GuyModeratorI can’t tell from the service manual if the RIAA in the BM6500 is a separate board that can be be removed, as it is only shown as part of a diagram where it is surrounded by dashes and market RIAA amplifier acesory, and the text about cutting pin 7 when RIAA is mounted.
It is a separate board that sticks up vertical from the main board just behind the input sockets. There are pictures of an RIAA board attached to the first couple of posts here: https://archivedforum2.beoworld.org/forums/p/7576/67094.aspx#67094
EDIT: I only remember because it was discussed in this thread: https://forum.beoworld.org/forums/topic/difference-between-source-sugnals/page/2/
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