have been trying to work this out ..
i am thinking its a LM339PT ?
14 pin one ..zoom in to read it ..
i am thinking its a LM339PT ?
14 pin one ..zoom in to read it ..
Attached Files
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Re: please help identify this component
looks like 339
makes sense, isnt 339 a comparater? -
Re: please help identify this component
its marked ezdd 339 mrc013Comment
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Re: please help identify this component
yes comparator .
i thought pins 1 and 2 were shorted but looking closely at the board they are supposed to connect together .
have no idea why they did that .Comment
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Re: please help identify this component
https://cdn.badcaps-static.com/pdfs/...9d61bec5c8.pdf
Are pins 4 and 6 or pins 5 and 7 tied togetherComment
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Re: please help identify this component
I agree with above, here is a picture of one from https://es.aliexpress.com/item/ST339...818891290.htmlAttached FilesComment
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Re: please help identify this component
was trying for hours to find a pic of one with same writing on to confirm its correct part ..i cant find one pictureComment
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Re: please help identify this component
One of the lines may be the month and year of manufacturing, or batch number, it's unlikely you'll find a picture with exactly the same writing, with all rows of text the same.
With all the resistors around the chip, it's indeed most likely a comparator, and they're probably using resistors as some basic voltage dividers before the chip compares voltage thresholds or something and turns on or off those transistors (sot-223 or whatever the 3 pin footprint is)Comment
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My Zoom R16 would not turn on. I checked for voltage rails and I found that 2 out of the 3 inductors had voltages.
L19 read 3.3v
L10 read 4.5v
L11 had no voltage readings
I need help in identifying IC10 which could be the problem. Really appreciate any help on this.
...05-02-2024, 05:43 PM -
This specification for the LENOVO ThinkSmart M920q Zoom Rooms can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the ThinkSmart M920q Zoom Rooms boardview and ThinkSmart M920q Zoom Rooms schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification,...09-12-2024, 01:58 PM
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Hy guys , i have a DVR board DS-80104 REV 2.2 that was powered wrong, i have some smds on the board that are blown and i can't identify them , maybe if someone has this board somehow and we can identify the smds', i have searched online and i can't find a schematic.
The smds are SOT-23-6 , one of them i think it has the marking ADJF since i found another one on the board with this marking , but the other one it seems that it starts with AG or it looks like. I would really apreciate if someone could help me identify those IC's .
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Hi gang, its a long shot, but working on Lenovo Legion Pro 7 motherboard NM-F091, and trying to identify this component near GPU with marking "eHFQH" that is burned and shorting the board. Looks like power management IC
I couldnt find any schematic or boardview. The CPU side also has same chip. Any way to identify this chip? or take measurements from the good chip to determine what it is?
Any help would be appreciated... -
I mistakely pluged 100v japanese retro game console to 220v outlet.
So It seems that glass fuse and varistor have been blew up.
I can identify that voltage and ampere value of glass fuse(250V LF 1.6A),but It is impossible to identify varistor type in my sega saturn PSU(YAMAHA 35M07U XR258)
Is there any way to identify varistor type in my sega saturn PSU?
Any reply would be appreciated.
EDIT:
It seems that I finally found out what type this black varistor is. It is Panasonic ERZV05D221 “ZNR” Transient/Surge Absorbers (Type D) Varistor Voltage...
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