Help IDing a two-digit 7-seg LED

I have a two digit 7-seg LED module. Ten pins, so I presume it is 2*BCD + power. Only markings are ELT-D4014AW on the side and on the pcb (visible through the epoxy fill) 4201E/F and SB (or S8).

Any clues as to pinout?

Reply to
budgie
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I should have added that I have googled for the full part number as well as bits of it, but no hits relevant to the part.

Reply to
budgie

through

bits

Could be 7 segments + decimal point + 2 kathodes/anodes, I haven't seen them having decoders built-in. It's easy to find out with multimeter.

Tom

Reply to
Tom

through

bits

Most likely that. I have seen them with decoders in though

Reply to
The Real Andy

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bits

Yep, most likely that. Most likely not a decoder one with 10 pins. Can you see the common track through the epoxy?

Here is the pinout for a SIL version:

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Dave :)

Reply to
David L. Jones

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bits

7segs x 2 digits, total 10 pins. Nope, it has to be iether muxed or decoding?

There are quite a number of single digit types with on-board decoding. Based on the pin count, I am expecting this is decoding too. That's the main reason I haven't attacked it with the meter ....

Reply to
budgie

through

bits

Hi Dave

All the cattledogged doubles I found were 18-pin direct drive types. But we're winning now. This is muxed, and I have identified the two anodes and seven segment cathodes. But the DP's don't illuminate at all - pin 2 (otherwise unaccounted for) is open to all others. Presume dead.

Tnx to all.

Peter

Reply to
budgie

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