Appendix, cont’d
U17
U41
U38
Locating the three firmware IC chips
5.After you are electrically grounded, the U17 IC chip or U38 IC chip may be removed by grasping it firmly with your fingers and pulling it out, then continuing to step 8.
Removal of the U41 IC chip requires a PLCC IC puller tool. To remove the U41 chip, align the hooks of a PLCC IC puller tool with the slots located in opposite ends of the U41 firmware chip.
6.Insert the hooks into the slots, and squeeze the tool
gently to grasp the chip.
7.Pull the chip straight out
of the socket, and set it | Align Notches |
aside. | U41 |
8.For U17 and U38, align
the notch of the new firmware chip with the notch of the socket in the
same orientation as the old chip.
For U41, align the angled corner of the firmware chip with the angled corner of the socket.
9.Gently, but firmly, press the chip into place in the socket.
10.Replace the top cover on the DVS 204 scaler, and fasten it with the screws that were removed in step 3.
11.Rack/furniture mount the scaler, and reconnect the AC or DC power cord.