so here is the problem....

[seoirse2002]

I just cant help myself...a friend has just sold me his Marantz PM-80...he bought it on the bay as not working,and intended to have it looked at but has now found himself another fully working one,so the interest was lost,and knowing I was a fan,( I also have another one currently not working,but being looked at,)thought maybe I could use the parts....BUT....This is the original champagne PM-80 look here:http://www.thevintageknob.org/marantz-PM-80.html....and my other one is a later MK2 and I think it may be better to not scrap such a rare beast.

Thing is...this one is a Japanese 100 volt model and what originally happened was that the owner brought it over here and just plugged it in using an adapter.....not a stepdown...just a normal plug adapter!!!...so hopefully only the internal fuse is blown.

This is my problem,I need help!!!
I cant even get it open! and have no idea what screws to turn and the few Ive tried just wont budge!! which at least leads me to believe it hasn't been opened up.....
Ideally someone who knows what they are doing needs to look at this for me...hopefully not too far out of London... Can anyone help please? pm or post:scratch:

[Audio Al]

George

If you are around on Sunday early afternoon

I could bring my 100Volt transformer and a bit set and see If I can be of any help :)

Will pick up the speakers as well if no massive hold ups like last week

PM me if you like

[seoirse2002]

George

If you are around on Sunday early afternoon

I could bring my 100Volt transformer and a bit set and see If I can be of any help :)

Will pick up the speakers as well if no massive hold ups like last week

PM me if you like

That sounds good to me:)

[seoirse2002]

It looks like it has the side cheeks. Remove the four screws from each cheek then it looks like it has small case screws on the rear. My Pioneer was like this.

Ok Ill give that a go,I need to get it open to see what the mains fuse is..on my other one its a 3.75 which I think is probably hard to get as my nearest maplins don't have them,all they have is 4...would the 4 be ok just to try?

[seoirse2002]

To The Black Adder....thankyou....I managed to remove the cheeks and then just 2 screws on the back and I have the amp open!!!!:)
Its full of dust and looks untouched.....I found in total 5 fuses ...2 sets of 2 ....
Behind what I think is the power supply is one fuse on a board which says 8A on it.....closer to the front of the amp near the power switch are 2 fuses which states 250V 1A....all are blown

Then further back there are 2 X125V 5A...I broke one taking it out(told you I was no good at this) so not sure if the other one is blown or not.....

so far so good......are these fuses available?....should I vacuum the inside of the amp to remove dust?

[The Black Adder]

No probs.

Vacuum it if you wish but just be very careful. Best thing to get is a couple of compressed air cans, same as you get for cleaning keyboards etc. Much more powerful and safer. I'm sure the fuses are still available.

Sounds good so far.

[seoirse2002]

Thanks Joe,
Ive used a blower called the rocket which is normally used to blow dust out of photo gear and a small thin paint brush...that loosened most of the dust,then vacuumed with an attachment making sure not to touch anything,most of the dust actually fell through the lower vents so all is reasonably clean now.

Now I need to get some fuses for it(a 100 watt Japanese Marantz pm-80 )amplifier...

fuses are marked.....250v 1a.....there are 2 of these
125v 5a and 2 of these

8a and one of these...

A kindly aos member is coming over with his transformer so we can try to get it working on Sunday...just got a blank stare in my local maplins as the guy who knows about such things isn't in today(?)

anyone recommend anywhere else?

[The Black Adder]

Ask Nick Gorham (Lurcher) on here... He might be able to help.

You will need to give the length of each fuse too.

[Puffin]

George it is 100v

[Puffin]

Here is a pic of the 100v tranny. The equipment it was used with was double insulated. I therefore made up a lead for the live and return only. You will see that there is a round hole for the earth terminal. It seems that the stock plug is the same as those used in the US (see link)

http://i73.photobucket.com/albums/i239/saxonsex/DSCF2224_zps4e307813.jpg

http://www.ebay.co.uk/sch/i.html?_odkw=IEC+C13+Mains+Power+Cord&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.Xamerican+com puter+power+cord&_nkw=american+computer+power+cord&_sacat=0

Is the Marantz double insulated (i.e does it use a figure of 8 mains lead) or does it need a separate earth? If it does, and it were me using this tranny I would just add a "prong" to the plug I have already made to take the earth (making sure that it was all electrically safe and sound)