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Converting to digital no output 6021 Control unit
Joined: 05/11/2010(UTC)
Posts: 8
Location: Rhode Island
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Hi all,
Like some others, I'm brand new here. I have a vintage (mostly stuff from late 50's - 70's) Marklin layout using the old blue analog AC transformer. I purchased a used #6021 control unit and hooked it up as per the instructions to run off the yellow/brown feeds from the old transformer. The problem is that I'm getting no out put from the 6021 or, more accurately, something like .5 volts AC. I'm thinking the 6021 may be defective but wanted to get input from the group. Thanks.
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Joined: 16/02/2004(UTC)
Posts: 15,441
Location: DE-NW
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Hi!
I hope you're using a true-RMS meter, otherwise don't trust the 0.5 V reading and use a light bulb or a lighted coach (or even an analog loco) to test again.
OTOH the CU 6021 could really be defect. |
Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS  |
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 Joined: 19/12/2003(UTC) Posts: 1,205 Location: Swindon, Wiltshire
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Tom is right. Digital current is closer to DC than AC in shape. A lighted coach should give you an idea as to whether your 6021 outputs the correct voltage. |
Richard |
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Joined: 29/08/2003(UTC)
Posts: 1,915
Location: Netherlands
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Have you removed all the radio condensators?
They may hay wire your 6021.
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M-track with a CS2. |
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Joined: 19/12/2003(UTC) Posts: 1,205 Location: Swindon, Wiltshire
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Davy wrote:Have you removed all the radio condensators?
They may hay wire your 6021.
Absolutely right - good suggestion! |
Richard |
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Joined: 05/11/2010(UTC)
Posts: 8
Location: Rhode Island
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H0 wrote:Hi!
I hope you're using a true-RMS meter, otherwise don't trust the 0.5 V reading and use a light bulb or a lighted coach (or even an analog loco) to test again.
OTOH the CU 6021 could really be defect. Thanks for this. My analog locos won't even move or light up with it. Thus, I'm thinking the 6021 may be defective.
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 Joined: 28/11/2007(UTC) Posts: 8,225 Location: Montreal, QC
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Is the transformer putting out voltage through the brown and yellow terminals? Have you wired them to the correct sockets on the back of the 6021? If you connect them to the wrong ones, you can burn out your 6021. Once connected, have you tried a 6021 reset. Press both the start and stop buttons at the same time until 99 appears on the LED display. Does the unit now put out voltage. If testing with an analog lok, make sure that you have a long enough track section, as the lok will take off at full speed.
Also, make sure that dip switch 2 is on and all others are off.
If you want to test using the other outputs on the transformer, connect the plugs and set the transformer to about 75-80% of max. Do not click reverse!
Regards
Mike C
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Converting to digital no output 6021 Control unit
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