ESR meter upgrades - Page 48

**Per Hansson** · 05-06-2018, 05:25 AM

I have uploaded the firmware from one on eevblog.
Yes it has a menu where you can select the basic modes of operation, including only ESR.
If anything's missing just compile your own

Dutch52 · 08-13-2018, 01:57 AM

@STJ,
Did you investigate the AY-AT firmware further? (See message 928)

**stj** · 08-13-2018, 03:22 AM

no.
and that machine is sketchy as fuck - i think a harddrive is failing.

**vinceroger69** · 08-30-2018, 06:38 AM

Hi i was going to arder AY-AT tester with case but seen a post where it says this one maybe a better choice and is newer https://www.aliexpress.com/item/M644...ceBeautifyAB=0
can this tester be upgraded with later firmware etc if needed and has anyone found a case too fit them thanks

**stj** · 08-30-2018, 08:49 AM

ask here:
http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/5025/

it looks o.k. but a colour display would have been better.

**vinceroger69** · 08-30-2018, 11:10 AM

Quote:

Originally Posted by stj

ask here:
http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/5025/

it looks o.k. but a colour display would have been better.

Yes true no colour screen on these, so a ay-at it is then as aliexpress has a sale on and these can come with a case etc, too save me reading loads of pages in the eevblog thread lol, do you know what if any parts are recommend to swop out? before i update the firmware, i will also keep too a 9v battery as fits in case nice.

**stj** · 08-30-2018, 01:24 PM

only the voltage reference really, like last time - i think you have spares of the lm4040

beware of the case, if it's the acrylic ones they crack.

**stj** · 08-30-2018, 01:26 PM

btw, i ordered one of these in the sale.
https://www.aliexpress.com/item/New-...814430302.html

i'm thinking with a mask on the end to reduce the aperature, i can check how hot chips are without using the "finger test"

**vinceroger69** · 08-30-2018, 01:33 PM

Quote:

Originally Posted by stj

btw, i ordered one of these in the sale.
https://www.aliexpress.com/item/New-...814430302.html

i'm thinking with a mask on the end to reduce the aperature, i can check how hot chips are without using the "finger test"

yes got spares of the lm4040 so thats ok what crystal does the ay-at come with is it worth upgrading? and yes that looks like a good ir thermometer i will have a good look through there site whilst the sales on, i was going too make a post asking if anyone had spotted anygood bargains etc we all like too build our test equipment/parts stock up.

**stj** · 08-30-2018, 05:55 PM

upgrade to a 16MHz crystal too.

**Per Hansson** · 10-06-2018, 08:29 AM

GM328R firmware attached containing latest SVN version 798 of Karl-Heinz firmware.
This time 16Mhz and 20Mhz builds are included, I have tested both.

Dutch52 · 12-12-2018, 02:46 AM

@STJ

Is your old machine still sketchy ?

**stj** · 12-12-2018, 07:35 AM

worse,
drive is dead

i know why - the motor driver ic is shorted (ST smooth series) - i'm looking for a donor drive to get another chip.

**stj** · 08-06-2019, 03:36 AM

just did a fresh build
not tested yet.

GM328 - every option on, low bat @7.2v

AY-AT no BJT / PUT testing - i tried real hard but there is simply not enough flash.

**sam_sam_sam** · 08-06-2019, 07:34 AM

Are you going to show any pictures of the unit that you are building

**stj** · 08-06-2019, 10:09 AM

i did, nothing has been added since.

the way i see it, there is no point building one if it costs over twice as much in parts as buying one from china and upgrading the crystal.

i will buy a new one when i see one with an atmega664 or 1284 and a colour display that i like.
i wont buy or recomend any atmega328 based stuff now, they just dont have enough memory for all the features.

**eccerr0r** · 08-07-2019, 08:54 PM

Anyone have a PUT or UJT to play with on these testers?
SCS?

I suppose DIACs are more available but testing such on these things are going to be tough?

**stj** · 08-08-2019, 01:23 AM

maybe a diac works - i dont have one to try.
not even seen one for decades.

in theory it may be detected as 2 diodes.

**eccerr0r** · 08-08-2019, 07:47 AM

I have a few UJTs in my junk pile, but not PUTs or SCSs. Yeah probably should show up as two diodes or something to that extent. (Incidentally, how could SCS be tested? has more than 3 pins...)

DIACs I have a couple and they're still being made/used, but I don't think they could be properly tested. They might detect as a funky high ohm resistor or something? Not sure. I don't have one of these testers to try.

**stj** · 08-08-2019, 08:46 AM

a diac would probably show as a pair of zeners.
i think i may have one on an old switching psu for halogen lamps - maybe i will be able to test that theory.

05-06-2018, 05:25 AM	#941
Per Hansson Super Moderator Join Date: Jul 2005 City & State: ---- My Country: Sweden Line Voltage: 230v 50Hz I'm a: Knowledge Seeker Posts: 5,523	Re: ESR meter upgrades I have uploaded the firmware from one on eevblog. Yes it has a menu where you can select the basic modes of operation, including only ESR. If anything's missing just compile your own __________________ "The one who says it cannot be done should never interrupt the one who is doing it." Last edited by Per Hansson; 05-06-2018 at 05:27 AM..

08-13-2018, 01:57 AM	#942
Dutch52 Retired Join Date: Aug 2016 City & State: Den Helder, NH My Country: Netherlands Line Voltage: 220VAC 50Hz I'm a: Knowledge Seeker Posts: 9	Re: ESR meter upgrades @STJ, Did you investigate the AY-AT firmware further? (See message 928)

08-13-2018, 03:22 AM	#943
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: ESR meter upgrades no. and that machine is sketchy as fuck - i think a harddrive is failing.

08-30-2018, 06:38 AM	#944
vinceroger69 Badcaps Veteran Join Date: Mar 2012 City & State: Nuneaton Warwickshire My Country: uk I'm a: Hobbyist Tech Posts: 6,490	Re: ESR meter upgrades Hi i was going to arder AY-AT tester with case but seen a post where it says this one maybe a better choice and is newer https://www.aliexpress.com/item/M644...ceBeautifyAB=0 can this tester be upgraded with later firmware etc if needed and has anyone found a case too fit them thanks

08-30-2018, 08:49 AM	#945
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: ESR meter upgrades ask here: http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/5025/ it looks o.k. but a colour display would have been better.

08-30-2018, 01:24 PM	#947
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: ESR meter upgrades only the voltage reference really, like last time - i think you have spares of the lm4040 beware of the case, if it's the acrylic ones they crack.

08-30-2018, 01:26 PM	#948
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: ESR meter upgrades btw, i ordered one of these in the sale. https://www.aliexpress.com/item/New-...814430302.html i'm thinking with a mask on the end to reduce the aperature, i can check how hot chips are without using the "finger test"

08-30-2018, 05:55 PM	#950
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: ESR meter upgrades upgrade to a 16MHz crystal too.

12-12-2018, 02:46 AM	#952
Dutch52 Retired Join Date: Aug 2016 City & State: Den Helder, NH My Country: Netherlands Line Voltage: 220VAC 50Hz I'm a: Knowledge Seeker Posts: 9	Re: ESR meter upgrades @STJ Is your old machine still sketchy ?

12-12-2018, 07:35 AM	#953
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: ESR meter upgrades worse, drive is dead i know why - the motor driver ic is shorted (ST smooth series) - i'm looking for a donor drive to get another chip.

08-06-2019, 07:34 AM	#955
sam_sam_sam Badcaps Veteran Join Date: Jul 2011 City & State: Some times Sunny Jacksonville FL My Country: USA Line Voltage: 120 Volts 60 HZ I'm a: Knowledge Seeker Posts: 4,290	Re: component testers Are you going to show any pictures of the unit that you are building __________________ 9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50F then at 90F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had CAPs POOF All of the mosfet that are taken out by bad caps

08-06-2019, 10:09 AM	#956
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: component testers i did, nothing has been added since. the way i see it, there is no point building one if it costs over twice as much in parts as buying one from china and upgrading the crystal. i will buy a new one when i see one with an atmega664 or 1284 and a colour display that i like. i wont buy or recomend any atmega328 based stuff now, they just dont have enough memory for all the features. Last edited by stj; 08-06-2019 at 10:13 AM..

08-07-2019, 08:54 PM	#957
eccerr0r Solder Sloth Join Date: Nov 2012 City & State: CO My Country: USA Line Voltage: 120VAC 60Hz I'm a: Hobbyist Tech Posts: 8,121	Re: component testers Anyone have a PUT or UJT to play with on these testers? SCS? I suppose DIACs are more available but testing such on these things are going to be tough?

08-08-2019, 01:23 AM	#958
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: component testers maybe a diac works - i dont have one to try. not even seen one for decades. in theory it may be detected as 2 diodes.

08-08-2019, 07:47 AM	#959
eccerr0r Solder Sloth Join Date: Nov 2012 City & State: CO My Country: USA Line Voltage: 120VAC 60Hz I'm a: Hobbyist Tech Posts: 8,121	Re: component testers I have a few UJTs in my junk pile, but not PUTs or SCSs. Yeah probably should show up as two diodes or something to that extent. (Incidentally, how could SCS be tested? has more than 3 pins...) DIACs I have a couple and they're still being made/used, but I don't think they could be properly tested. They might detect as a funky high ohm resistor or something? Not sure. I don't have one of these testers to try.

08-08-2019, 08:46 AM	#960
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 29,048	Re: component testers a diac would probably show as a pair of zeners. i think i may have one on an old switching psu for halogen lamps - maybe i will be able to test that theory.