Check
http://www.acme-sales.com/ for a SMPS kit at $8.95. Tritronics was down to one in stock a few months ago, and seemed to not be restocking as only one warehouse had anything on hand.
You can go to eserviceinfo.com and download a .EXE file for CTC-169 that has some good hints:
http://www.eserviceinfo.com/download...A_proscan.html
Progam: R2456d.exe
Save it, run it, and don't enter a password when asked. Very nice graphic help.
tom
P.S. I bought mine in 1992, got another on election day, and have my little sister's 1995 model that she left on her leaky back porch for several years... The only problem I have is her audio muted, I replace the amplifier IC, and lifted a resistor to disable the mute. Went kapow every time we turned it on, and finally shorted the amp. Still working on that one.
tom