Author Topic: What's this please? (Component Advice)  (Read 1208234 times)

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Online HwAoRrDk

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Re: What's this please? (Component Advice)
« Reply #1850 on: August 10, 2023, 06:23:00 am »
Actually, I found it. It's a Diodes Inc SMAJ24CA 24V bidirectional TVS diode. The marking is 'UZ'.
 
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Offline Majorstrain

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Re: What's this please? (Component Advice)
« Reply #1851 on: August 10, 2023, 06:31:12 am »
Actually, I found it. It's a Diodes Inc SMAJ24CA 24V bidirectional TVS diode. The marking is 'UZ'.

Thanks heaps.  The 24V would make sense, the supply is 24 volts.

Cheers,
Phil
 

Offline tohtorizorro

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Strange tube thingy
« Reply #1852 on: October 12, 2023, 11:06:02 pm »
What might this be?
It was found inside a Pioneer SA-9800 stereo amp, supposedly serving some sort of DIY modification purpose.
The photos show only 3 wires but allegedly a fourth one had come off.
« Last Edit: October 13, 2023, 07:46:42 am by tohtorizorro »
 

Online Andy Watson

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Re: What's this please? (Component Advice)
« Reply #1853 on: October 12, 2023, 11:38:58 pm »
A thermally operated relay. Probably functioning as a time-delay, although it could be sensing power.
 

Offline Mr.B

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Re: What's this please? (Component Advice)
« Reply #1854 on: October 13, 2023, 01:59:42 am »
A thermally operated relay. Probably functioning as a time-delay, although it could be sensing power.

Perhaps speaker de-thump at power up?
I approach the thinking of all of my posts using AI in the first instance. (Awkward Irregularity)
 

Offline tohtorizorro

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Re: Strange tube thingy
« Reply #1855 on: October 13, 2023, 07:45:59 am »
Spot on!

Someone managed to dig up this web page confirming what Andy said.
 

Offline w.v.s.

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Re: What's this please? (Component Advice)
« Reply #1856 on: October 14, 2023, 10:49:52 am »
Hi, i know what it is, but I would like to know who made it and where I could find a datasheet for it. I hope this is the right thread for this question, nevertheless.



 

Online ebastler

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Re: What's this please? (Component Advice)
« Reply #1857 on: October 14, 2023, 11:48:27 am »
Looks like a Fujitsu logo?
And since you didn't tell us: It's a CCD.  :)
 
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Offline meadiode

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Re: What's this please? (Component Advice)
« Reply #1858 on: December 21, 2023, 02:09:59 pm »
Got a few of these little guys recently. Apparently pulled out from some equipment, probably military, from the mid 80s. The marking says Plessey GPD340 (or GPD340P). A search for the datasheet came to nothing.
Has anyone come across these displays, or similar? Maybe there's a datasheet, or at least a pinout?
1959006-0
 

Offline CJay

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Re: What's this please? (Component Advice)
« Reply #1859 on: December 22, 2023, 05:48:14 pm »
 

Offline Fryguy

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Re: What's this please? (Component Advice)
« Reply #1860 on: December 24, 2023, 02:36:03 pm »
Can somebody tell me what this part is ? Found it on a powersupply board of my dead russian benchtop meter . Could be some kind of regulator IC .



Born error amplifier  >.<
 

Offline Fryguy

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Re: What's this please? (Component Advice)
« Reply #1861 on: December 24, 2023, 03:10:27 pm »
Got a few of these little guys recently. Apparently pulled out from some equipment, probably military, from the mid 80s. The marking says Plessey GPD340 (or GPD340P). A search for the datasheet came to nothing.
Has anyone come across these displays, or similar? Maybe there's a datasheet, or at least a pinout?
(Attachment Link)

Those are 2 digit LED dotmatrix smart displays - afaik they have an integrated ascii decoder chip . The HP hdsp-2xxx series (e.g. hdsp-2001) should be very similar .  Take a look at this : https://www.digchip.com/datasheets/parts/datasheet/021/HDSP-2001-pdf.php

I used a couple of these about 15 years ago in a temperature controller : https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1/SLx2016.pdf
« Last Edit: December 24, 2023, 03:30:36 pm by Fryguy »
Born error amplifier  >.<
 

Offline mendip_discovery

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Re: What's this please? (Component Advice)
« Reply #1862 on: December 24, 2023, 05:29:30 pm »
Can someone help me work out the connector? I have a Bemex TC303 with no power supply so I need a new plug. It is only a 9V supply so not overly hard to get.
Motorcyclist, Nerd, and I work in a Calibration Lab :-)
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So everyone is clear, Calibration = Taking Measurement against a known source, Verification = Checking Calibration against Specification, Adjustment = Adjusting the unit to be within specifications.
 

Offline meadiode

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Re: What's this please? (Component Advice)
« Reply #1863 on: December 25, 2023, 12:07:52 am »
Those are 2 digit LED dotmatrix smart displays - afaik they have an integrated ascii decoder chip . The HP hdsp-2xxx series (e.g. hdsp-2001) should be very similar .  Take a look at this : https://www.digchip.com/datasheets/parts/datasheet/021/HDSP-2001-pdf.php

I used a couple of these about 15 years ago in a temperature controller : https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1/SLx2016.pdf

Nope, they're not similar - simply there's not enough pins(only 8 ) to apply HDSP-2xxx's driving scheme, which requires at least 9 pins (5 to drive columns, 1 for data-in, 1 for CLK + GND and VCC). There's got to be some more sophisticated serial protocol like in HCMS-29xx series.
 

Offline meadiode

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Re: What's this please? (Component Advice)
« Reply #1864 on: December 25, 2023, 12:14:28 am »
Can somebody tell me what this part is ? Found it on a powersupply board of my dead russian benchtop meter . Could be some kind of regulator IC .

Looks like it's this thing - KPS104G
https://www.radiomuseum.org/tubes/tube_kps104g.html
 

Offline Fryguy

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Re: What's this please? (Component Advice)
« Reply #1865 on: December 25, 2023, 02:11:16 pm »
That's it , thank you   :-+   Interresting part - a twin N-FET , never seen that before   :)

What about the Osram SLx2016 ? This one is also a bit different - only 4 digits and less pins  . . . maybe your 2 digit models need even less pins ?  :-/O

At least it's a place to start . But you could be right about a serial interface  :-//

You do not have the instruments they were taken from ? At least one to do some reverse engineering ?
« Last Edit: December 25, 2023, 02:16:04 pm by Fryguy »
Born error amplifier  >.<
 

Offline meadiode

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Re: What's this please? (Component Advice)
« Reply #1866 on: December 25, 2023, 07:54:16 pm »
You do not have the instruments they were taken from ? At least one to do some reverse engineering ?

No, nothing whatsoever, that's why I'm asking here.
So far, I've not found any info/schematics/similar models from other manufacturers on the internet. So it seems, shooting in the dark with driving schemes is the only option to display something on them.
« Last Edit: December 25, 2023, 07:56:11 pm by meadiode »
 

Offline patrik96

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Re: What's this please? (Component Advice)
« Reply #1867 on: December 28, 2023, 08:50:32 am »
Dears, May someone able to identifiy that component (from OWON frontend) it will big help because it need to be repair.
As I know the component start H1K is between the VGA and ADC , what start VUBI is somehow a power suply the ST3FF may also some power supply
Thanks
 

Online gamalot

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Re: What's this please? (Component Advice)
« Reply #1868 on: December 28, 2023, 11:52:37 am »
Dears, May someone able to identifiy that component (from OWON frontend) it will big help because it need to be repair.
As I know the component start H1K is between the VGA and ADC , what start VUBI is somehow a power suply the ST3FF may also some power supply
Thanks

First one: https://www.ti.com/product/TLV62130

Second one: https://www.analog.com/en/products/ada4932-1.html
« Last Edit: December 28, 2023, 12:05:49 pm by gamalot »
 

Offline patrik96

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Re: What's this please? (Component Advice)
« Reply #1869 on: December 28, 2023, 12:28:29 pm »
Dears, May someone able to identifiy that component (from OWON frontend) it will big help because it need to be repair.
As I know the component start H1K is between the VGA and ADC , what start VUBI is somehow a power suply the ST3FF may also some power supply
Thanks

First one: https://www.ti.com/product/TLV62130

Second one: https://www.analog.com/en/products/ada4932-1.html

Thanks, is is strange because the TLV62130 diven a TPS723 (T08I) what is neg regulator...
 

Online gamalot

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Re: What's this please? (Component Advice)
« Reply #1870 on: December 28, 2023, 12:40:32 pm »
Dears, May someone able to identifiy that component (from OWON frontend) it will big help because it need to be repair.
As I know the component start H1K is between the VGA and ADC , what start VUBI is somehow a power suply the ST3FF may also some power supply
Thanks

First one: https://www.ti.com/product/TLV62130

Second one: https://www.analog.com/en/products/ada4932-1.html

Thanks, is is strange because the TLV62130 diven a TPS723 (T08I) what is neg regulator...

Read the datasheet, page 25.

"The TLV62130 can be used as inverting power supply by rearranging external circuitry as shown in Figure 40."

Offline patrik96

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Re: What's this please? (Component Advice)
« Reply #1871 on: December 28, 2023, 04:06:07 pm »
Dears, May someone able to identifiy that component (from OWON frontend) it will big help because it need to be repair.
As I know the component start H1K is between the VGA and ADC , what start VUBI is somehow a power suply the ST3FF may also some power supply
Thanks

First one: https://www.ti.com/product/TLV62130

Second one: https://www.analog.com/en/products/ada4932-1.html

Thanks, is is strange because the TLV62130 diven a TPS723 (T08I) what is neg regulator...

Read the datasheet, page 25.

"The TLV62130 can be used as inverting power supply by rearranging external circuitry as shown in Figure 40."
Thanks your are right,
 

Offline samuelharris55@gmail.com

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Re: What's this please? (Component Advice)
« Reply #1872 on: December 30, 2023, 10:03:12 pm »
hello!! trying too find a chromebook ic bios chip too a chromebook 11mk ee! the bios chip is Winbond ic bios chip W25Q64JWIM do anyone have a copy!! :-/O thank you very much!! if you can help!! Thanks!!!
 

Offline Yansi

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Re: What's this please? (Component Advice)
« Reply #1873 on: February 12, 2024, 11:11:34 pm »
Any ideas what this buck controller IC may be? It is a ~100V input voltage buck, with 12V output.  Seems to be the typical "floating controller" topology, however it has a rather not typical differential voltage sensing (see the two identical 121K - 3K9 voltage dividers looking at the output voltage). Sry, the schematic is a mess, just as I drawn it from the PCB.
Pinout of the IC is now clear. Marking not so much, someone has scared it with some abrasive tool, so we can be only sure about the first letter, S. Next letter may be L, but it may also be not. No idea how would one search for this. Turned whole LCSC upside down, looking for some SLxxxx chip that would match, found nothing even remotely close. The bottom 4 digits is likely just a date code.
Thank you for any ideas.
 


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