
The channel 2 problem was likely operator error, might have blown the vertical amplifier circuit on that channel. If there is no movement then that channel is dead. You can repeat the same test on channel 2, however the dot should move vertically. If the dot moves vertically at all on channel 1 then it is a CRT horizontal drive problem. If this all seems normal than the problem is in the sweep circuit, not the CRT horizontal drive. If you center the dot and set the scope to 1V/div and apply -5V to the input the dot should move all the way to the left without moving vertically, +5V will make it go right.

The dot should move right or left depending on whether it is + or - and should not move vertically. Put the scope in X*Y mode and apply a voltage to the channel 1 input. You can isolate the sweep circuit from the CRT horizontal drive circuit. I don't know how similar yours is, but on my 2120 the sweep circuit needs quite a few rails, the +5V, +/-12V and +24. If you have a supply problem then there can be all kinds of weirdness. Everything you need to worry about should be under 300V, 260V is the highest my 2120 has apart from the HV to the tube.Ĭhecking your power rails is one of the first steps of troubleshooting. No need to mess with the high voltage points. You're getting a nice bright trace, your high voltage is fine.


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BK PRECISION OSCILLOSCOPE 2160 SERVICE MANUAL MANUAL
Hi I'm looking for schematics and/or service manual for BK Precision 2160 scope.

BK Precision 2160 - EEVblog B&K Precision's model 2120C is a dual trace oscilloscope that offers hh performance at a low price. I have instructions for the 2125 which seem pretty close. I have acquired a BK 2160 (Not the newer 2160A) Oscilloscope and was wondering if anyone has the Operating Instructions for it. Do not post questions on designing, repairing or troubleshooting electronic circuits (including questions on tools, equipment and parts sourcing) - these go in.Do not post about something just because it contains 'electronics'. The focal point of your post should be related to the subject of component-level electronic engineering as supported by the post tags / flairs below.A subreddit dedicated to news, articles and general discussions related to the field of.
