three-five inc LCD datasheet request

[kyndal]

three-five systems

i have a couple of LCD's from "three five" systems TFS
which now bankrupt and all..

i would like any information on interfacing these, datasheets
pretty much anything to help get them going...

only information on the LCD is the text up top

Three Five Systems inc
5000297-4 REV [A]


they are out of "psion" teklogix 7030 handheld scanners....

any help appreciated

 

[kyndal]

i have now gotten a unit with a different manufacturer display
and i have checked that they are compatible
(they work in the other units etc) and probably 100% pin compatible

on the PCB it says

POWERTIP
PG320240X F

and the sticker
PG320240ERF-XNNHY2

the Die type chips says 102D2 and 045D5
and i think they are SED 1335 or RA8835

i have checked all the powertip datasheets avaible PG320240-c,d,e,f,h,j etc
and none are pin compatible with this lcd.
so i think it may be a custom replacement made when three five systems
went under ?


i have been tracing the pcb between the displays and im "guessing" this so far

1 gnd
2 5v
3 A/K LED backgroud
4 lcd controllers both Row and Colum
5 A/K LED background
6 lcd controllers Row only
7 EL backlight related
8 Clock (which one?) goes to flipflop for low high data shift
9 gnd
10 DATA (probably D0)
11 EL Backlight related
12 DATA (probably D1)
13 increment / ADJ probably for contrast / EL intensity
14 DATA (probably D2)
15 gnd
16 DATA (probably D3)
17 CS, Control probably for contrast / EL intensity
18 lcd controllers Row only
19 lcd controllers Row only
20 up/down probably for contrast / EL intensity

does anybody recognize this pinout and can help fill in the blanks ?

Thanks

Rune Kyndal[/img]

 

[karesz]

By the way_
a good Engineering Directory (not only over LCDs):
**broken link removed**
K.