Dell S3221QS Service Manual

Dell S3221QS Service Manual

31.5" lcd monitor
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31.5" LCD Monitor
Dell S3221QS
Service
Service
Service
Simplified
1

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Table of Contents
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Summary of Contents for Dell S3221QS

  • Page 1 31.5" LCD Monitor Dell S3221QS Service Service Service Simplified...
  • Page 2: Important Safety Notice

    Accordingly, a servicer who uses a service procedure or tool which is not recommended by DELL must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.
  • Page 3 1. Exploded view diagram with list of items...
  • Page 4 QM1G38400601200ARA SCREW -- 6mm(POWER BOARD/MAINFRAME) BKT_HINGE 0M1G3030 4120 SCREW 3 4(MAINFRAME/PANEL) REAR_COVER 0M1G3030 4120 SCREW 3 4 (MIDDLEFRAME/PANEL) stand ass'y 0Q1G2030 6120 SCREW M3 6(SPEAKER/PANEL) BASE_ASS’Y 0Q1G2030 6120 SCREW M3 6(LATCH/REAR COVER) LOGO DELL 0M1G2940 10125 SCREW M4 10(REAR COVER/MAINFRAME)
  • Page 5 2. Wiring connectivity diagram Connector Ass’y PN: Connector Ass’y PN: Connector Ass’y PN: 395GH20007DM120HPF 395G176Q01067000HF 395G176W01067300HF This Connector welding in Connector Ass’y PN: Connector Ass’y PN: Key Board 395G179X51N52700HF 395G076Q00852700HF...
  • Page 6: Mechanical Instruction

    3.Mechanical Instruction Tools Required List the type and size of the tools that would typically can be used to disassemble the product to a point  where components and materials requiring selective treatment can be removed.    Tool Description:    - Phillip head Screwdriver - Hex Screwdriver - Penknife...
  • Page 7: Rear Cover

    3.1 Disassembly Procedures: Step Figure Remark Turn off power, S1.Before Unplug external cables  disassemble from product   Push the button to S2.Remove the STAND-BASE remove the stand-base ASS’Y assy. Use a Philips-head screwdriver to remove 4 screws for unlocking mechanisms S3.Remove the (No.1~4 screw REAR COVER size=M4x10;...
  • Page 8 Use Penknife to separate the bezel and rear cove follow the arrows in sequence, then you can take out rear cover. Tear off 5 pieces of aluminum foil and 2 pieces of tapes. Disconnect the lamp cable from the connectors of the power board and panel S4.Tear off the module.
  • Page 9 Remove the Mylar. Use a Philips-head screwdriver to remove 12 screws for unlocking the main board and the adapter board (No.1~11 screw S5.Remove main size=D3x6, Torque: board and power 6±1kgf.cm) board (No.12 screw size=M4x6, Torque: 6±1kgf.cm) Disconnect all of the cables Use a Philips-head screwdriver to remove...
  • Page 10 Use a Philips-head screwdriver to remove 3 screws to remove the S7.Remove the key board. key board (No.1~3 screw size=M6x19, Torque=0.9±0.4kgf.cm) Use a Philips-head screwdriver to remove 7 screws for unlocking the S8. Remove the BEZEL_BTM and the BEZEL_BTM Panel. (No.1~7 screw size=M6x19, Torque=0.9±0.4kgf.cm)
  • Page 11: Assembly Procedures

    3.2 Assembly Procedures: Step Figure Remark Use a Philips-head screwdriver to tighten 7 screws for locking the BEZEL_BTM and the S1.Assembly the Panel. BEZEL_BTM (No.1~7 screw size=M6x19, Torque=0.9±0.4kgf.cm) Use a Philips-head screwdriver to tighten 3 screws to locking the key S2.Assembly the board.
  • Page 12 Use a Philips-head screwdriver to tighten 12 screws for locking the main board and the adapter board (No.1~11 screw size=D3x6, Torque: S4. Assembly the 6±1kgf.cm) MAIN board and power board (No.12 screw size=M4x6, Torque: 6±1kgf.cm) Connect all of the cables And pasted the mylar sheet Connect the lamp...
  • Page 13 Pasted 5 pieces of aluminum foil and 2 pieces of tapes. Use a Philips-head screwdriver to tighten 4 screws for locking S6.Assembly the mechanisms Rear cover (No.1~4 screw size=M4x10; Torque: 12±2kgf.cm) S7.Assembly the Stand...
  • Page 14: Troubleshooting Instructions

    4. Trouble shooting instructions...

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