I¡¯ve come quite a long way into repairing this early 547. All the TD¡¯s are replaced and working properly, all the electrolytics have been replaced, a few out-of-spec resistors have been replaced too, as well as a few transistors, mainly the AF118. I had ordered a few AF118 (4.5€ a pop), but those that arrived were not the regular TO-7. They were instead in a TO-92 package. If you see those, don¡¯t even bother, they don¡¯t work as expected. I returned them and did find the proper NOS TO-7 ones that worked right off the bat as expected, albeit a bit pricier at 5.8€ a pop!
Anyways, the problem I¡¯m facing concerns the horizontal amplifier. For starters, the trace is always moving a bit right and left. Also, it is just impossible to adjust the timing. It¡¯s completely off even with the X1 and X10 all the way CCW. It¡¯s still way to wide. I replaced what I found to be out of spec, but there is still no change.
I haven¡¯t measured the 30K and 18K 8W precision resistors though¡
Here¡¯s a short video of a 1KHz from a Type 184. You can clearly see the trace moving right and left, as well as the timing being off, and I can¡¯t adjust it any further.
Any help would be appreciated.
