Quote:
Originally Posted by Jeffhs
Looks as if the channel selector knob on the RCA console is wrong for that model; may be a replacement for a missing one.
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Looks just like the knob RCA intended - the set/knob on the cover of the RCA service manual looks just like Dave's.
Quote:
Originally Posted by Zenith26kc20
The vertical on the 86 is usually caused by bad 220K resistors on the vertical module. Change all of them. That set can produce an incredible picture when working right. We rarely saw those in here. If we did, it was vertical and tuner.
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+1 for any set using the MDG module. There is also an axial cap, 22uF, that hangs off one of the supplies that will also cause some serious vertical issues, but always start with the 220K 1/2w resistors. The CTC85 and up sets were the first RCAs we sold new - and the modules at first gave everyone fits. RCA paid warranty only to the module level, but was short on modules, and so we had to troubleshoot the modules, unpaid, to keep some customers happy. Once you got the bugs out, those sets stayed gone for good, save for a lightning strike, or a "hot" Oak cable box that would eat the tuners. Cox had some fault cable boxes with upwards of 60VAC on the shield of the f-fitting. We saw only a couple, but scary....