Subject:
|
Re: HandyBoard Assembly Problems
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Wed, 26 May 1999 00:45:31 GMT
|
Original-From:
|
Nick Taylor <ntaylor@iname.com>
|
Viewed:
|
776 times
|
| |
|
|
Matt:
It sounds like maybe you have a DS1233M instead of a DS12323. The
"M" part is a replacement for the MC34064 and has a different pinout
than the regular DS1233. I have both versions, DS1233 for the Handy
Board and DS1233M for the Finger Board. I cannot tell them apart by
their markings! Only with an ohmmeter. They both look like diodes
between pin-1 and pin-3; on the DS1233 pin-3 looks like the cathode,
on the DS1233M pin-1 looks like the cathode. Does that make sense?
On the HandyBoard part; low resistance (1K5) from pin-3 to pin-1,
and open from pin-1 to pin-3.
http://www.dalsemi.com/DocControl/index.html
Hope this helps,
- - - Nick - - -
Matt Austin wrote:
>
> Hi all,
> I'm at stage 4.2.1 of assembling my Handyboard(v1.2) Where you install
> U12, the DS1233 3-pin ic. And it doesn't work, I've worked through the
> debugging stage, Led11R IS in the right way round, and I've tried U12 both
> ways. What happens is this; when power is applied LED15Y comes on, and stays
> on, but the red battery low light doesn't light, not even for 1/3 of a
> second. I can however make it light by shorting the top and middle pins of
> U12.
> Every thing up to this stage has worked fine, and I believe that all the
> other components are inserted correctly. Is U12 defective? Or is there
> another solution?, is the board defective? Has anyone else had a similar
> problem? Any help would be greatly appreciated!!
> ------------------------
> Matt Austin
> Falinn@Ukmax.com
> Home Page: Http://www.Geocities.Com/Area51/Stargate/4133
|
|
Message is in Reply To:
 | | HandyBoard Assembly Problems
|
| Hi all, I'm at stage 4.2.1 of assembling my Handyboard(v1.2) Where you install U12, the DS1233 3-pin ic. And it doesn't work, I've worked through the debugging stage, Led11R IS in the right way round, and I've tried U12 both ways. What happens is (...) (25 years ago, 25-May-99, to lugnet.robotics.handyboard)
|
3 Messages in This Thread:
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
