Keithley 9139B-PCA Instructions Manual

Keithley 9139B-PCA Instructions Manual Manual pdf 36 page image

Model 9139B Probe Card Adapter Instructions Section 4: Maintenance9139B-901-01 Rev. A / January 2019 4-5Replacing a pogo pin socketIf a pogo pin breaks off in a socket or if the pin becomes lodged in a socket, the pogo pin socket canbe replaced.Hazardous voltages may be present on an installed probe card even after the output isdisconnected, that if contacted, may cause personal injury or death.To replace a socket:1. Follow the steps in Mechanical disassembly (on page 4-2) to disassemble the probecard adapter.2. Locate the defective pogo pin or socket assembly.3. Locate the pad where the defective socket is soldered to the motherboard. This pad is on theprobe-ring side of the motherboard (refer to the figure in Probe card adapter standardcomponents (on page 2-1)).4. Desolder the socket from the probe-ring side of the motherboard.Do not apply excessive heat when desoldering the socket. Excessive heat can melt theretention ring of the probe card adapter.5. Push the end of the desoldered socket that protrudes through the motherboard and remove it bypulling on the other side with a pair of needle-nose pliers.6. Pull the socket out of its hole in the retention ring.7. Remove residual solder from the hole of the solder pad.8. Insert the small end of the replacement socket into the hole located in the retention ring (see thefigure in Replacing pogo pins (on page 4-4)).9. Slide the socket into the hole until the bottom of the socket is flush with the surface of theretention ring (pogo pin not installed in the socket).10. Confirm that the socket is installed properly (see the figure in Replacing pogo pins (on page 4-4)).The small end of the socket protrudes through the hole on the motherboard. The open end of thesocket is flush with the surface of the retainer ring.11. Solder the socket to the pad located on the motherboard.