![Qualstar TLS-4000 Technical & Service Manual Download Page 161](http://html1.mh-extra.com/html/qualstar/tls-4000/tls-4000_technical-and-service-manual_3421438161.webp)
8.4.7 Procedure for Replacing the Flash Memory I. C. on Executive I Boards
This procedure will lead you through the process of changing the TLS operating firm-
ware on an Executive I board. It involves removing the rear service panel and replac-
ing a 32-pin, DIP Flash-EPROM memory integrated circuit (IC). Contact Qualstar
Technical Support to obtain the necessary integrated circuit (the Part Number is
700099).
1.
Remove power from the TLS: first turn the power switch off and then remove the
power cord.
2.
Remove the six Phillips screws securing the access panel on the rear of the li-
brary – refer to Figure 8-15. Care must be taken to not remove the four screws
securing the heatsink panels.
Phillips Screws (6)
Do not remove
these screws
Do not remove
these screws
Figure 8-15 Access Panel
3.
Remove the Flash-Memory IC at U10 (Part Number is 700099) from the Execu-
tive I PCBA using a flat blade screwdriver or equivalent tool. Pry the IC from ei-
ther end slightly and repeat for the other end. Continue this procedure until the
part is loosened enough to be removed by hand. Refer to Figure 8-16.
8-14 Firmware
Updating
501380 Rev. B