Mitsubishi Electric CAHV-P500YB-HPB Service Handbook page 158

[ IX Troubleshooting ]
3. LEV replacement instructions
1) Remove the upper and
lower service panels.
(Panel FU and FB)
Work procedure
(1) Remove the service panel. (See figure at above)
(2) Replace the LEV in trouble.
HWE15070
2) Remove the cables from the
Frame Assy MU (top) and MB (bottom),
and remove the Frame assy MU and MB.
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LEV 1
LEV 2
GB