hewlett-pa: HP 8558B Horizontal Sweep

My HP 8558B/182T lost horizontal sweep, using the external sweep  works, but not synchronously, of course.

I ask the experts acquainted with HP equipment, the horizontal  sweep is generated internally on the HP 182T or comes from the 8558B module, which I think is the case, and then I'm afraid to re-stir this technology monster.

PS: I accept PDf's or buy original paper manuals on HP182T.

Best Regards

H Capela

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Hello,

the sweep is generated on A8 bord inside the 8558. Repair without

having extenders (see manual) is nearly impossible, but check for

shorted Tantals first.

Regards Werner

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Hi Werner, 

I do not have extenders, yes I will check all the capacitors of the A8 module first.

In times I tried to get an extender or make one for 8558B, but as it was not accessible, and as I didn't need it much, I didn't go ahead with the project.

Thankful for your information.

Best Regards

H Capela 

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Hi Hans Werner,

I am working on the case again , what i found was the fingers of the switches loose , nothing new , i have already gone through that and used aralditte to fix them ,but it does not work for a long time, I am using mechanical fixation , I hope to reassemble everything in the first form correctly, once the first time...

Best Regards 

HC 

Attachments:

• Switch (173 KB)
• Switch AD (238 KB)

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