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I hope this can be resolved. Unlocking - OCRing - relooking seems perfectly reasonable. I don't see how this violates whatever agreement. larry

Read out the voltages across C721. Also read out C741 and C761. Used the Beckman HD110 MM with the common to ground. C721; three of four pins read zero, both AC and DC. The fourth pin read 55.5V DC

Hi Harrison, Back in 2017, I worked on my 465M. The following is from an email I sent outlining what I did. Perhaps that will help since it sounds very similar to what you're seeing with yours.

I will check out voltages across C721. Since my last posting I did some reading after which I decided to look closer at the HV Oscillator and HV Regulator circuits. I did an in circuit check of Q556,

I'm afraid I've lost track of what we're trying to do here. As I understand, the main issue is having OCR'ed versions of the files on TekWiki that are available here: http://w140.com/tekwiki/wiki/RPR

This is a wonderful practice and I hope it returns soon. Vaguely related, this is also something I saw recently that seems very hacker friendly and maybe others on the group will enjoy:

If it's the same as the power connector for FET probes, I probably have one for you, could be NOS. Also, if its diameter is bigger than the FET-ones. I have a 4041 in the lab and will be there on

I need to purchase the connector used on the end of the cable of the PD keyboard that attaches to the front panel of the 4041. It looks like a 4-pin LEMO round silver connector. I cannot find this

Sometimes the "service manual" is built into the appliance. In nearly every washer, dryer, dishwasher, frig, microwave, and HVAC thing I've worked on (many dozens of items) over the years, I have

Walter's cable is probably for a word recognizer probe for the 2400 series scopes, which uses the same 6 pin LEMO as the tracking generator cable, but only on one end. BTW, the tracking generator

My problem like this was with a dishwasher. A good one - I’ll name names; it was a Miele. A design feature that was quite good was that the intake valve for the water supply was external and located

With the 32v supply at 30v, the +/-5v readings make perfect sense as the reference for those two regulators is the 32v supply. [30/32x 5] = 4.68v Check the DC and AC voltages across C721. You should

I assume you mean charge level, not wear-out or old age condition? Charge level can be measured (to a certain degree as voltage per cell) by measuring voltage under load but AFAIK, the THS700-series

I think two of them are larger than 200 MB. I've reduced many Tek manuals that were over 200 MB to 30 - MB with hardly any loss of quality. If you send me an unlocked version of one of those, I'll see

That's my preferred method: The OCR part is a separate "invisible" layer. Raymond

That cable has Lemo connectors on both sides. Raymond

I think the 6 pin Lemo cable was used to connect the TR-502 Tracking Generator To a 7L13, Walter. I remember reading a post by Dennis too. Mark

The electronics shop in the physics lab where I once worked just used the outer part of a BNC cable connector (removed from a connector which had had its inner portion's fingers messed up). It works

Bruce, I wouldn't mind owning one of those BNC wrenches, but the link you gave doesn't ship to the UK. There is one on eBay which looks the same, but the shipping to the UK puts the cost up by an to