OK, but via which register is it programmed. I find nothing in GL842 datasheet for frontend.
regards Guillaume Selon Pierre Willenbrock <pierre at pirsoft.dnsalias.org>: > Guillaume Gastebois schrieb: > > Hello, > > > > OK, > > I open my LiDE 90 (very hard not all to destroy...). > > I find these IC's : > > > > GL842 (Genesys well known scanner chip) > > GLT44016P (SO40 RAM) > > BU6574 (TSSOP20 ????????????) > > VHC175 (TSSOP16 quad flip flop) > > VHC08 (TSSOP16 quad and) > > LB1940 (TSSOP20 constant current driver) > > LM324 (SO14 quad op amp) > > 1733 (TO-263 regularor) > > > > Appart the BU6574 (I dont find what it is) I dont find any analog > > frontend. Is it possible that this chip is located with leds (seems very > > hard to open.....) > > > > I don't know where the analog frontend may be found. There are arguments > for both positions. > > The BU6574 has enough pins for the job. Did you look at the back of the > pcb? > > In the documentation i found for one cis sensor, the glassy sensor > itself contains just the ccd row and the leds. There may be a small pcb > on the sensor bar, carrying the analog frontend. > > But you really don't need to look for the chip and possibly destroy your > scanner on the way.. Let's first try to figure out how it is configured > from an usb log. > > Regards, > Pierre >
