Technical data

Repair Guide 6
N1911A/1912A P-Series Power Meters Service Guide 95
Disassembly vs Part Replacement
Disassembly of Replacement Part Instructions
Main board / Rear panel assembly /
Bottom clamshell
• Full strip-down required
PSU / Top clamshell • Remove handle, bumpers, and top clamshell
(including PSU)
• PSU can now be removed from the top clamshell
Fan assembly • Remove handle, bumpers, and top clamshell
(including PSU)
• Disconnect fan assembly from the main board
• Fan assembly can now be removed
PPMC assembly (front connectors
option)
• Remove handle, bumpers, and top clamshell
(including PSU)
• Disconnect the main board ribbon cable from the
PPMC
• Disconnect the service connector cable from the
PPMC
• Remove the 4 screws securing the PPMC to the
main board
• PPMC assembly can now be removed
PPMC assembly (rear connectors option)
• Remove handle, bumpers, and top clamshell
(including PSU)
• Disconnect the sensor flex connection(s) from the
main board
• Disconnect the main board ribbon cable from the
PPMC
• Disconnect the service connector cable from the
PPMC
• Remove the 4 screws securing the DAP assembly to
the main board
• PPMC assembly can now be removed
DAP assembly, Channel A (front
connectors option)
• Remove handle, bumpers, and top clamshell
(including PSU)
• Disconnect the sensor RF connections from the
main board
• Disconnect the sensor flex connection(s) from the
main board
• Remove the 4 screws securing the DAP assembly to
the main board
• DAP assembly can now be removed