Products > Test Equipment
Advantest R6243 teardown and repare
TrexREXX:
--- Quote from: ketil b on December 01, 2015, 09:18:48 pm ---Hi i can do those measurements but have to clear some projects off my bench first
Thanks
Ketil
--- End quote ---
OK!!
Thank you
TrexREXX:
--- Quote from: ketil b on December 01, 2015, 09:18:48 pm ---Hi i can do those measurements but have to clear some projects off my bench first
Thanks
Ketil
--- End quote ---
Hi ketil b
I repaired the Advantest R6243 :) :) :)
Some resistors on the payment located over
radiator were in break.
Now everything works
But there were questions on tension on control points
You couldn't help me? |O
I made the plate
TP9 GNDC
TP1 +139V =+165V TP5 -139V =-165V
TP2 +91V =+111V TP6 -91V =-111V
TP3 +55V =+73V TP7 -55V =-73V
TP4 +31V =+42V TP8 -31V =-42V
You couldn't help me? |O
DEHiCKA:
Just revived couple of those beasts!
3 cracked resistors and one TI's OPA627 opamp. The opamp was tough to figure out, it has inconsistent resistance disconnect inside it's case :o
Not to mention OPA627 costs freaking $25 per piece. Funny fact, chinese even sell fake OPA627's wich have AD744 silicon under the hood: Original vs. Fake
Thanks, AD nowadays makes it's $5 analog - ADA4627
BTW, anyone has some luck with Cal menu?
I don't have "Cal Switch Set" on mine units. GPIB command XENT also missing, but X? is present, so maybe Cal entering is hidden on earlier firmwares?
Any thoughts?
gamalot:
--- Quote from: DEHiCKA on March 19, 2016, 12:13:26 pm ---Just revived couple of those beasts!
3 cracked resistors and one TI's OPA627 opamp. The opamp was tough to figure out, it has inconsistent resistance disconnect inside it's case :o
Not to mention OPA627 costs freaking $25 per piece. Funny fact, chinese even sell fake OPA627's wich have AD744 silicon under the hood: Original vs. Fake
Thanks, AD nowadays makes it's $5 analog - ADA4627
BTW, anyone has some luck with Cal menu?
I don't have "Cal Switch Set" on mine units. GPIB command XENT also missing, but X? is present, so maybe Cal entering is hidden on earlier firmwares?
Any thoughts?
--- End quote ---
You don't have the "Cal Switch Set" menu entry because of your R6243 is working in the R6143 compatibility mode.
You can release this compatibility mode by pressing the MODE and DIRECT buttons then power on.
TrexREXX:
--- Quote from: gamalot on May 20, 2016, 12:55:41 pm ---
--- Quote from: DEHiCKA on March 19, 2016, 12:13:26 pm ---Just revived couple of those beasts!
3 cracked resistors and one TI's OPA627 opamp. The opamp was tough to figure out, it has inconsistent resistance disconnect inside it's case :o
Not to mention OPA627 costs freaking $25 per piece. Funny fact, chinese even sell fake OPA627's wich have AD744 silicon under the hood: Original vs. Fake
Thanks, AD nowadays makes it's $5 analog - ADA4627
BTW, anyone has some luck with Cal menu?
I don't have "Cal Switch Set" on mine units. GPIB command XENT also missing, but X? is present, so maybe Cal entering is hidden on earlier firmwares?
Any thoughts?
--- End quote ---
You don't have the "Cal Switch Set" menu entry because of your R6243 is working in the R6143 compatibility mode.
You can release this compatibility mode by pressing the MODE and DIRECT buttons then power on.
--- End quote ---
Thank you!
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