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You will be safe to use any as long as the voltage specs are higher than any in the circuit around them or any stated voltages on the diagram. It will probably a question of the space needed to fit them in the end rather than the working voltages. For example if everything around it is marked 50 volts, than that or above, should be OK.
McIntosh parts are both expensive and difficult to find. The parts usually have to be obtained from McIntosh itself (which is overseas), and they are quite expensive.
prob just a burnt fuse, could be in protect mode.......... need more info, it's not just you but alot of ppl are not giving enough info to determine the problem since it could be a number of things
It can be a variety of reasons but I feel that your amplifier is shutting off after powering on. There is nothing that can be done from the outside but If you are familiar with basic electronics and can attempt to take a look I can try. Open the set after you have pulled off the power, then look into the set and tighten all the connectors and cords. Power on and see where the click comes and goes off. If the relay is not holding on then your protect circuit is shutting it off. Armed with a multimeter turn on the power and check if the main +B power is coming to the output stages.If there is momentary swithch on , then disconnect power and test the continuity in the output stages. If hsort open the leads to the output section and then power on. If the relay stays we have found the fault. you can go on to change the failed outputs. If however the outputs were tested ok, then your fault could be the relay or the protect circuit, Hold a rely for a moment to see if the amplifier powers on, if so check the relay drive transistor , the biasing to the stage. Try this out and I hope my advice helps. Good day
This manual is not published on the internet for free and this includes the Mac audio support site, i called and they said you can purchase it from the following: PARTS DEPARTMENT Parts, Owner's Manuals, Service Manuals and Shipping Carton requests contact either of our parts department reps below. Hours are Monday - Friday 8:30 am - 4:30 pm EST
You can get a copy from this site. The file needs a password to download from this page, the owner of the site is quite cooperative, and when he checks his emails(every few weeks or so) he apparantly will just send you the password. He likes to swap for other files if you have any :)
If it does not work out, please let me know here and I will look further for you. Cheers
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Good Luck.
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