7
User system
Bottom view of IC socket
4 projections to apply epoxy
adhesice to
IC socket
(Tokyo Eletech Corporation
NQPACK128RD)
Guide pins
Pin 1
Figure 3 Location Setting of IC Socket
2.2.2 Soldering IC Socket
After fastening, solder the IC socket for an FP-128 package to the user sy stem. Be sure to completely
solder the leads so that the solder slops gently over the leads and forms solder fillets. (Use slightly
more solder than the MCU.)
2.2.3 Inserting Cable Head
CAUTION
Check the location of pin 1 before inserting. Align pin 1 on the IC socket for an FP-128 package on the user s y stem with pin 1 on the user system
interface cable head, and insert the user system interface cable head into the IC socket on the user
system, as shown in figure 4.