Transistor marked C1 in Sundown SFB 1800.5D

I get this both probes AE340585-6EFE-48D1-A846-AD28863B5061.jpeg
 
I was trying to set it right and got double lines. Moving the position couldn’t line them up so I tried that dc/Bal adjustment on channel one and the top line moved. Tired to move the one for channel 2 and realized it’s not in there. That’s probably the problem.