Help IDing a two-digit 7-seg LED

[budgie]

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?

 

[Tom]

budgie wrote:

On Thu, 12 Jan 2006 15:27:00 +0800, budgie <me@privacy.net> wrote:


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?


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.

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

 

[The Real Andy]

On Thu, 12 Jan 2006 18:21:13 +1000, Tom <ttp@nospam.com> wrote:

budgie wrote:
On Thu, 12 Jan 2006 15:27:00 +0800, budgie <me@privacy.net> wrote:


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?


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.

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.

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

 

[David L. Jones]

Tom wrote:

budgie wrote:
On Thu, 12 Jan 2006 15:27:00 +0800, budgie <me@privacy.net> wrote:


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?


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.

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.

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:
http://www.farnell.com/datasheets/47345.pdf

Dave

 

[budgie]

On 12 Jan 2006 03:39:24 -0800, "David L. Jones" <altzone@gmail.com> wrote:

Tom wrote:
budgie wrote:
On Thu, 12 Jan 2006 15:27:00 +0800, budgie <me@privacy.net> wrote:


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?


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.

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.

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:
http://www.farnell.com/datasheets/47345.pdf

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