"Jeff Liebermann" wrote in message
...
On Sat, 17 Nov 2012 19:13:18 -0500, "Charles"
wrote:

Repair is not always the best option. Recycling and replacement is
sometimes better. Sad. Really liked the FG507.

You're willing to pay $400 for a replacement function generator, but
not $15 for a schematic to repair the one you currently own.

It's easy enough to calculate the relative cost of repair to replace.
My guess(tm) is that it would take me about 2 hrs and $20 in parts to
replace all the dip tantalum capacitors in the FG507. A little
Googling will show that old tantalums are a major problem in Tek
products. I value my spare time at $35/hr. That's $90 cost to repair
the FG507 without the risk of buying a manual from a questionable
source. Working blind does offer a challenge, but I suspect that's
not why you don't want to spend the $15. I would recommend a manual
as it's often difficult to read the markings and color codes on old
tantalums. Good luck.


--

I found the manual at Qservice for $8 US. Operator and service manual. Two
gamma extenders would take will take about an hour to build up and you will
have them for the future. Or just remove the TM50x cover and you can reach
most anything. I doubt it is a shorted tantalum cap. More likely a switch or
pot that needs cleaning.

But I suspect the OP does not possess either the skill or desire to dig into
this. So he could just put the TM and the FG up on ebay and help cover the
cost of the non-repairable Chinese function generator. Also, good luck.