- #BK PRECISION OSCILLOSCOPE 2160 SERVICE MANUAL FULL#
- #BK PRECISION OSCILLOSCOPE 2160 SERVICE MANUAL ISO#
In one picture I have uploaded, you can see that I am testing the cal signal from my Oscope (2Vp-p, 1kHz) with both the Oscope and a USB "Analog Discovery." The Oscope's cal signal seems to be spot on, but I am still getting a bad reading on my Oscope.
As you can see, the schematics show versions D,F, etc., where my boards seems to be on revision A. However, the board layouts seem to be slightly out of sync with my scopes boards. I have also uploaded scans of the original schematics for the 2160A model. Sorry if they don't show much, it's hard to get good internal shots will all the wires in the way and board mounted awkwardly. If necessary, I can upload a video of myself adjusting the scope settings while measuring the cal signal? Update: So I have uploaded some close up pictures of the internals. Hey, Response: So I know it looks like I just have my V/div turned down too low, but I am 100% certain that is not the issue (I have just revisited adjusting the knob settings). With all that said, I guess my main questions are: 1) Is there an obvious culprit for waves looking like this? Where should I mainly focus my debugging? 2) When is it safe to probe around the scope when all the HV circuitry is near? Is simply disconnecting the power from the scope and cycling the power sufficient to drain any residual energy? (When I have access again, I will be posting detailed internal pictures of the scope and the entire scopes schematics) Thanks I am having trouble confidently probing around the scope due to two rails at -1.9kV and 12kV!!! There is nothing visibly wrong with any components, but I still need to start testing the R/C/D values.
There are some mid-range rails, 140-200V, that I will measure later because my DMM/probes are supposed to handle up to 1000V. What I have done: I have measured the low voltage rails, 5-16V, and all seem nominal. The inside of the scope is equally as nice as the outside with minimal dust (I will post inside pictures later). condition of the scope: Very nice condition! it looks like someone bought this scope in 1997 and stored it in the original packaging(which it came with) until now. I am borrowing an "Analog Discovery" from a friend to test the scopes cal signal, but I need to buy a micro-USB cable. As you can see in the picture, the cal signal is displayed sort of curved square wave missing the falling edge. I figured since the scope seems to be mostly working, fixing it should not be that hard, but I'm having a little trouble. As shown in the picture, the oscilloscope does power on, the CRT still works and is still very bright, the controls seems to be responsive, and there is some wave displayed. So I bought a BK 2160A, for $50, because I just graduated and need to start building up my lab equipment collection.
I searched for the BK 2160A but there didn't seem to be much about repair, so sorry if this post is redundant. The instruments listed below are a sample of what we calibrate and can possibly repair.Hello, First time posting, and I am new to the blog.
#BK PRECISION OSCILLOSCOPE 2160 SERVICE MANUAL ISO#
Calibrations are performed by engineers with extensive OEM experience.Ĭustom-Cal is ISO 17025:2005 accredited and performs the work in accordance with its quality requirements.Ĭustom-Cal also offers on-site calibration and expedited services to meet the needs of our customers.
#BK PRECISION OSCILLOSCOPE 2160 SERVICE MANUAL FULL#
This allows us to provide calibration services quickly and efficiently with full traceability to NIST. This is accomplished through the use of our proprietary procedures and integrated processes.Ĭustom-Cal maintains an extensive inventory of reference standards. We can perform specific portions of the calibration based on your quality requirements enabling us to strike the optimal balanceīetween quality objectives and cost. Calibration and BK PRECISION repair services are generally rigid in their turnaround time and scope of calibration.Ĭustom-Cal takes pride in our ability to follow rigid procedures but what differentiates us is our willingness to meet
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