06-25-2016, 08:21 PM
A few days ago, I pulled the chassis out of the cabinet and set it on the bench.
Removing top and bottom covers, I soon discovered a couple of serious problems...
[Image: http://www.philcoradio.com/images/phorum/S7900A_004.jpg]
See the gaps between the switch wafers, and between the wafers and the front metal portion of the stereo-mono mode switch? There should be no gaps...all of these parts should be pressed together fairly tightly.
[Image: http://www.philcoradio.com/images/phorum/S7900A_005.jpg]
Looking at the back of the mode switch, see the two holes across from one another with what looks like pins inside? These holes were once the ends of rivets...those rivet ends were broken off from the damage, causing the switch wafers to come loose.
The function switch had identical damage.
What to do?
Removing top and bottom covers, I soon discovered a couple of serious problems...
[Image: http://www.philcoradio.com/images/phorum/S7900A_004.jpg]
See the gaps between the switch wafers, and between the wafers and the front metal portion of the stereo-mono mode switch? There should be no gaps...all of these parts should be pressed together fairly tightly.
[Image: http://www.philcoradio.com/images/phorum/S7900A_005.jpg]
Looking at the back of the mode switch, see the two holes across from one another with what looks like pins inside? These holes were once the ends of rivets...those rivet ends were broken off from the damage, causing the switch wafers to come loose.
The function switch had identical damage.
What to do?
--
Ron Ramirez
Ferdinand IN
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
