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www.aec.com.tw/LT-48UXP-UpgradeKit-Setup.htm
Installation instruction for LabTool-48UXP Upgrade Kit
1. Turn off the programmers power switch and unplug the power cable.
2. Release the lever of the 48pin ZIF socket, so that it is vertically oriented.
3. Disassemble the 4 screws securing the upper housing to the base chassis.
4. Lift off the upper case, then disassemble the upper PCB (store this PCB on an antistatic foil or bag), then remove and retain
the 4 stand-offs securing the lower PCB to the base chassis.
5. Carefully unplug the DC power connector from the lower PCB (see Figure 4), then carefully unplug the AC mains input
connector from the DC switching power supply PCB (see Figure 3).
6. Remove the DC power supply from the base chassis (store this PCB safely, too).
7. Unscrew the 2 screws securing the lower PCB of the upgrade kit to the base chassis, and refasten the lower PCB of the
upgrade kit to the base chassis again by using the 4 stand-offs taken from the original unit. (see Figures 1 & 2).
8. Reassemble the DC switching power supply into the upgrade kits base chassis.
9. Reconnect the AC mains power connector to the DC switching power supply. (see Figure 3)
10. Connect the DC output power connector from the switching power supply to the lower PCB of the upgrade kit. (see Figure 4).
11. Carefully align and insert the upper PCB into the sockets of the lower PCB. Make sure to insert the isolating washer between
the upper left stand off and the upper PCB, (see Figure5) and place the second insulating washer below the screw head up
the upper right screw as detailed in the pictures below (see Figure6). Use the screw with the small head (see Figure5) in the
upper left position (power supply oriented on the left side).
