Identify 4-Pin SMD (C50) on White's XLT Board

[Behnam1528]

Hi everyone,

I need help identifying a 4-pin SMD component labeled "C50" on my White's XLT Spectrum E-Series main board. My detector has a fault, and I suspect this component.

It's next to the M74HCT14B1 IC. While "C" usually means capacitor, its 4-pin nature and location suggest it might be a Common Mode Choke, filter, or something similar.

Please see the attached photo (C50 is circled).

Any info on its identity, specs, or a part number would be greatly appreciated! Schematics are a long shot, but amazing if available.

Thanks a lot,

 

[Rudy]

Member Carl-NC, was the engineering manager at White's, he may be your best bet in identifying the component. Send him a message.

 

[spence]

Not a great Pic however this is what I see.

Looks like a surface mount diode or resistor that someone dropped a solder blob on.
It very possible it's a 50 micro farad capacitor in that square package or 50 pico farads , regardless it looks kinda worked on already in that spot.

 

[spence]

Not a great Pic however this is what I see.

Looks like a surface mount diode or resistor that someone dropped a solder blob on.
It very possible it's a 50 micro farad capacitor in that square package or 50 pico farads , regardless it looks kinda worked on already in that spot.

Got a schematic? I can take it a little further.

 

[spence]

It's a four pin because you can see it right?

 

[TorqueMaster]

Total amateur here, but it definitely looks like someones tried to fix a trace, and put that smd on top of it?

Looking at the rest of the board, there are no other smds I can see, so convinced myself that one does not belong. The squared off white lines around it (rather than rounded like other caps) make me believe it is not just another normal capacitor, though.

Found an image of what it should look like. Still pretty blurry but might help figure it out:

 

[TorqueMaster]

More pics

 

[TexasDigs]

Pictures are not clear but it may be a low ESL capacitor or a filter capacitor. Try to get some clear pictures.

 

[jimther]

Centreville Electronics in Manassas, VA, Whites authorized repair center.

Centreville Electronics

whites parts, repair parts, switches

www.centrevilleelectronics.net

 

[Flipperfla]

Pix too fuzzy, looks like TexasDigs nailed it. Ohm the 2 pads in the middle and see if they go to ground. Someone has to have the schematic and parts list.

 

[spence]

It says C50 so probably a cap. . Someone has worked that component already. Poor solder flow and it's crooked.

 

[Flipperfla]

It says C50 so probably a cap. . Someone has worked that component already. Poor solder flow and it's crooked.

I agree, someone was in it. I used to have to deal with chip components. There is real art to soldering the small stuff. You can hack up a board real fast. Back in the “old days” when you would change a hundred pin flat pack pin by pin, lots of chances to make a mistake by lifting a pad.
Here is a pix of my bench and office before I retired. Authorized Sony Broadcast. Working on $100k units is where you cannot make mistakes. A live shoot at Universal, we also did all the live shoots at Cape Canaveral. Our truck was parked right beside the control room bunker connected to the bunker then to a Sat. Uplink truck a couple hundred yards from the launch pad. When they would light one of the rockets off the whole truck would shake like we were in a earthquake. Really exciting.

 

[spence]

Nice tilted top rack that's brilliant. Looks like a spectrum analyzer there i owned once. ITC 1300 ?

 

[Flipperfla]

Nice tilted top rack that's brilliant. Looks like a spectrum analyzer there i owned once. ITC 1300 ?

Thanks! Good eye spotting the analyzer.