[hcraig244]

Bear in mind that the Commander uses ultrasonic not infrared…….have a listen and see if you can hear the standby relay operating when you first switch the mains power on……I have had issues in the past with a standby relay which although was operating its contacts where not making/breaking. The standby relay allows power to all functions however if your amp has been unused for a long time some of the lamps may have failed despite power being available, so may give a false impression that nothing is getting power…

[hcraig244]

Hi Henrik..

Pretty much like yourself. the clock is ticking as some say…but overall I’m still in good shape for an old man ;¬)

Bert…could be your 6000 is stuck in standby, very difficult to diagnose without eyes on, and if yours are failing it wouldnt be easy for you to open her up and do some tests…but do replace the remote battery and give that a go…maybe someone closer to you will weigh in and volunteer some assistance, the UK is a long way to send such a heavy amplifier ;¬)

Craig

[hcraig244]

hehe…..sorry Henrik, my fault….how are doing anyway? all good……..

Craig

[hcraig244]

these amps are certainly worthy of repair/restoration, they are a marvel of engineering…I believe hendrik from the site here lives on your part of the world, he has provided me with bits and pieces for 6000 quads in the past, he may be the one to help you….Im in the UK so not a lot of help I’m afraid

[hcraig244]

The strong box is ideal for transit…

[hcraig244]

All done and ready to roll…..

[hcraig244]

couldn’t resist posting this……

[hcraig244]

Following a river cruise down the Nile to Luxor and the valley of the kings, something I’ve always wanted to do, I completed the test on this machine…..It’s easy to see why people fall in love with these engineering mastepieces

[hcraig244]

These switches are notorious for failure due to arcing damage…..it’s quite possible the reason for your issue, very difficult to repair/replace too ?

[hcraig244]

Quickly moving on…….as the deck came to me bereft of cartridge I fitted one of my own and gave it a test

[hcraig244]

Well……isnt this a little embarrassing, fortunately Glitch is paying attention and identified the schoolboy error regarding the 33rpm setting. should of course be set to 33.33rpm…the manual identifies the 33rpm setting should be set up using the stroboscope dial which no doubt is calibrated to give a 33.33rpm setting when appearing stationary…..oops

[hcraig244]

All that remains is a period of testing……

[hcraig244]

Fairly straightforward with the exception that X is now in a different place due to the modified capacitor arrangement provided by Rudi….the Bi Polar capacitor position is now after the two back to Back capacitors…..measured up fine.

[hcraig244]

Adjustment of voltage for drive motor

[hcraig244]

Reverse was a little off….so had to adjust somewhat, so its always good to check. oh and swapped the probes around.

[hcraig244]

This went well……forward measurement, got the probes wrong way around naturally, measured up fine

 

[hcraig244]

Adjustment o the slow slide transport……..

[hcraig244]

45rpm was a similar story….tweeked that trimmer also

[hcraig244]

So tweaked it in……..

[hcraig244]

Just need to do some adjustments following the trimmer replacements…I don’t expect them to be far away as I measured across the relevant legs of each one and set the new trimmers accordingly but doesn’t hurt to check……used Rudi’s digital tachometer I purchased for the very purpose…..seems a shame not to use it. 33rpm up first and it was a little off…

 

 

[Author]

Posts