Lenovo 8APU1 Hardware Maintenance Manual

Also see for 8APU1: User guide User guide

ContentsAbout this manual . . . . . . . . . . . . iiiChapter 1. Safety information . . . . . . 1General safety . . . . . . . . . . . . . . . . 1Electrical safety . . . . . . . . . . . . . . . . 1Safety inspection guide . . . . . . . . . . . . . 2Handling devices that are sensitive to electrostaticdischarge . . . . . . . . . . . . . . . . . . 3Grounding requirements . . . . . . . . . . . . 4Safety notices (multilingual translations) . . . . . . 4Chapter 2. General checkout . . . . . 19What to do first . . . . . . . . . . . . . . . 19CRU list . . . . . . . . . . . . . . . . . . 20Chapter 3. Identifying FRUs(CRUs) . . . . . . . . . . . . . . . . . 21Locate FRUs and CRUs . . . . . . . . . . . 21Chapter 4. Removing a FRU orCRU . . . . . . . . . . . . . . . . . . 25Service tools . . . . . . . . . . . . . . . . 25General guidelines . . . . . . . . . . . . . . 25Remove the game controller . . . . . . . . . . 26Replace the controller guide L and R . . . . . . 27Remove the lower case . . . . . . . . . . . . 28Disconnect the battery pack cable . . . . . . . 29Remove the LCD bracket . . . . . . . . . . . 30Remove the SSD cable holder graphite . . . . . 30Remove the solid-state drive (SSD) . . . . . . . 31Remove the speaker with antenna . . . . . . . 32Remove the microphone cable . . . . . . . . . 33Remove the battery pack bracket . . . . . . . . 34Remove the fan . . . . . . . . . . . . . . . 35Remove the heat sink . . . . . . . . . . . . 36Remove the audio board . . . . . . . . . . . 37Remove the power board cable . . . . . . . . 38Remove the system board and the system boardcable . . . . . . . . . . . . . . . . . . . 39Use a Golden Key U1 tool to flash-write key idinformation . . . . . . . . . . . . . . . 41Remove the pogo pin FPC cable L . . . . . . . 41Remove the battery pack . . . . . . . . . . . 42Remove the pogo pin FPC cable R . . . . . . . 43Remove the microphone board. . . . . . . . . 43Remove the LCD module . . . . . . . . . . . 45Appendix A. Label locations. . . . . . 47Trademarks . . . . . . . . . . . . . . . . xlix© Copyright Lenovo 2023 i