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Indeed, and I've just done it. No sign of any YTO warning and the FM stations are back where they should be, too. I think we can call that a successful outcome, Ozan! I'm extremely grateful for your

Today’s corporate focus on product manufacture and service is many fold. Profits made from equipment sales are only part of the equation. There is (sometimes much more) money to be made through

Very eloquently stated, Chuck!? A fantastic summary of our (sad) times!

Yves, Steve, thank you very much for the offer of help I'll try to make it short: A few years ago my 8595E had shown signs of "deafness" in band 1 and given the prices of a SYTF I decided to keep it

Again short reply to catch you in your time zone: No need to move out of service position. If you have a piece of SMA cable that would work for connecting the front end. Ozan

Well, well. Because it was dead easy to do and made a certain amount of sense, I tried your 'sanity check' suggestion first instead of last and......<drum roll....> The YTO unlock warning has gone

I know it is getting late in your time zone, I will send a longer reply but for now could you try connecting gray (8) cable back, undo forcing of tune, and see if YTO is still giving unlock message?

I had a similar problem with mine, the power button barely worked at all. It turned out to be a worn out mylar button membrane under the rubber button caps. You can buy them relatively cheaply on

Thanks, Ozan. I don't think there is an intermittent issue at all, on reflection, because I'd never measured the output of U9 before and that is what caused the confusion, I believe. Fingers crossed

inline. Sometimes I think more may be less... this would fit in the same space as the inverter board.? An 8 or 14 pin microprocessor (depending on innards), a very tiny regulator, a few SMT

HI Harvey, Your creations sound far superior to my KISS approach to the issue. I have been designing my replacement 'module' with the idea it just 'drops in' in place of the existing inverter. I have

Dave, Not to be rude, but it does appear that you are trapped in the mists of time as you put it.? As a current lab instrumentation engineer and self-taught electronics engineer/repair specialist,

==== Either there is an intermittent contact (on A11A4 or your tune input), or some failure in U1 that gives exactly 6.6V but it is not clear why U1 would fail with that voltage I recommend

I've considered such replacements as I do design microprocessor boards with (replaced by LED) CCFL displays. Many of the inverters have a DC control voltage as you know.? I'd be tempted to have the

Hi Staffan, what if you copy the floppy with a real floppy drive inside the 8510 to a GPIB drive attached to the 8510 and then copy it back from there to the GOTEK? Then the 8510 should at least be

Consider that we live in an amoral litigious society, where companies have patented just about every conceivable combination of thoughts, algorithms, or circuits, that have happened in the past,

HI, well I suspected that may be the case and in the digital side of the instruments, (as you say) one wouldn't have a chance of a repair. However I would have imagined that just about every

Well, I stand corrected! This thread is the gift that just keeps giving for our resident tech addicts. My fears in my last post proved unfounded. With +4.5V applied to Tune, I still have -6.6V on the

Q1 is not a suspect in this case, Dave. I did take a look at its connections just out of interest and in real life as opposed to the photo, the patina of them is identical to that of the surrounding

Hello Dave, You are not missing the schematic supplement, it is not published or sold anymore. I am not sure if this is because of IP inside or because they don't want you to repair the product to