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power supply PS2521G
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Ken Eckert
I guess it took a while for my post to be approved. Enjoy!
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On Friday, July 12, 2019, Siggi <siggi@...> wrote:
The schematics finally turned up. See here: https://www.eevblog.com/forum/ |
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Siggi
The schematics finally turned up. See here: https://www.eevblog.com/forum/testgear/tektronix-ps2520g-ps2521g-and-gw-instek-ppt-pps-schematics-and-cal/.
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Jim Ford
Yeah, pet peave of mine: not being able to see voltage and current for all supplies simultaneously. All power supplies should have this ability.
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Jim F Sent from my Verizon, Samsung Galaxy smartphone -------- Original message --------From: Siggi <siggi@...> Date: 1/4/19 7:02 AM (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] power supply PS2521G
On Fri, Jan 4, 2019 at 8:37 AM Antoan1 via Groups.Io <Antoan1= yahoo.com@groups.io> wrote: I just wounder if the right group for the PSD2521G power supply.Hi Antoan, I believe the PS2520/2521 supplies were OEM from GW Instek. The GW PPT-3615 looks identical to my PS2520. I was never able to scare up a schematic for it, but with the hints and tips from this EEVBlog repair thread < https://www.eevblog.com/forum/testgear/tektronix-ps2520-triple-output-power-supply-repair-and-calibration/> and some persistence, I was able to work through the problems in mine. Seems the DACs are a weak point in these, plus I had logic supply and opto-coupler problems with mine. I'm not super-fond of this supply, the UI is quite horrendous and it can only display read-back for a single channel at a time. Siggi |
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Siggi
On Fri, Jan 4, 2019 at 8:37 AM Antoan1 via Groups.Io <Antoan1=
yahoo.com@groups.io> wrote: I just wounder if the right group for the PSD2521G power supply.Hi Antoan, I believe the PS2520/2521 supplies were OEM from GW Instek. The GW PPT-3615 looks identical to my PS2520. I was never able to scare up a schematic for it, but with the hints and tips from this EEVBlog repair thread < https://www.eevblog.com/forum/testgear/tektronix-ps2520-triple-output-power-supply-repair-and-calibration/> and some persistence, I was able to work through the problems in mine. Seems the DACs are a weak point in these, plus I had logic supply and opto-coupler problems with mine. I'm not super-fond of this supply, the UI is quite horrendous and it can only display read-back for a single channel at a time. Siggi |
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antoan1
Hi All,
I just wounder if the right group for the PSD2521G power supply. If not please point me to the right group. it DOA and I found that 5V short to GND. The problem is not from the components but from screw that tighten the GPIB connector the short 5V layer to GND layer. But I need the schematic to fix the Ch#1 and 2 no put put problems. On Ch#2, -25V short to GND ( 3402 shorts E,C) Thanks, |
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