This is a complete restoration of a PPG Waveterm that I did for a Client. The restoration included recaping the entire machine and doing a paintjob on the chassis. The reason for doing the paint job was to get it to go together with the PPG Wave2.2 (Same client).

Old and scratchy, not to mention it smellt like a ashtray when I got it.

Another view of the scratchy surface and rusty nuts.

The inside was also quite nasty looking. Dust everywhere, could it have been living in a smoking studio envoironment ?

Make note of the big caps on the PSU board.

Oldcaps on the monitor board.

Making sure I get all the cables back in the right way.

The same goes for this one, the blue stripe down on the flatcable.

The right way for the drivepower.

I am telling you now, getting into this machine is a nightmare, you have to remove everything in order to get this far into the machine, some voltage regulators even need to be desoldered before getting the PSU card out of the machine .... What where those germans thinking ???

Some old tantalum caps on one of the boards.

The PCB pathways are really easy to break on these boards, be carefull of overheating and pulling leads up from the board !!

Making sure everything gets back together as it should ;)

More of those old Tantalums, this particular place is a hard one as it is overcrowded with parts making it hard to see if the solder conects the upperside of the board, use a DVM to make sure you got a connection between all the places when the new caps are in place.

The new caps in place, the same goes for this card. Be carefull of not lifting the traces of the board when you desolder !!

Newcaps in place on the PSU card, this particular card is really hard to get back into place because of the externaly mounted voltregulators. To remove this card you need to desolder them both, and then resolder them back into place when you have recaped the PCB.

Newcaps soldered into place on the monitor card. If your picture on the monitor gets messed up in the vertical or horizontal way try electronics spray on the trimpots, make sure you first get the values with a DVM though, so that you can adjust them back to the same value as before you started cleaning them.

Here is a photo after the paint job was done. Looking much more nice and black.

The backside and the two voltregulators.

Another view of the paint job

Looking nice !!

Back to it´s owner in the condition of new ;)