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Service Hints & Tips

Document ID: BMOE-42EJV3

TP 390,390E,1720 - Power Latch, and DC-DC & Battery Board Removal

Applicable to: World-Wide

The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.

• Battery ASM
• Hard Disk Drive
• Combo Bay
• Keyboard
• LED Board
• Upper Heatsink
• CPU Board
• LCD Panel ASM
• Upper Cover ASM
• IMM Lower Heatsink ASM
• Fan ASM

To remove these boards and latch:

1. Remove the power latch and IR board.

2. Remove the screw securing the DC-DC & BATT board and disconnect the DC-DC & BATT board from the base cover ASM.

Step	Size (Quantity)	Head & Color	Torque
3	M2.5 x 6L (1)	Pan head, black	3.2 kgf-cm

Note: Make sure you use the correct screw for replacement.

	Search Keywords
	Hint Category	Hardware Installation/Configuration
	Date Created	20-11-98
	Last Updated	23-03-99
	Revision Date	23-03-2000
	Brand	IBM ThinkPad
	Product Family	ThinkPad 390, ThinkPad i Series 172x
	Machine Type	2626, 2627
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes