Inventec FLY DS400 User manual

DG12BT(FLY DS400)_Structured Disassembly SOP
Prepared by: LI, Rui-Yang
Approved by: Sun, ban-li
Publication date: Jul. 7, 2008

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1. Take up the mobile phone, disassemble this battery cover, and
record the bad item. (Image A, Image B)
Image A
label-warning
label-waterproof
※Notice: Inspect whether the label-waterproof and label-warning & Network Access License are broken, and
replace the new one in time.
Image B

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2.Take off the Test Hole Cover from case-KT-bottom by tweezers. (image C)
image C
※Notice: Don’t scratch the Keyboard bottom.
Take off the
hole cover

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3. Take-down the 4 screws on the keyboard bottom by screwdriver (Image D)
Image D

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4. Pull out the earphone and the charger cover, disassemble the keyboard
bottom from side the side switch, disassemble the rear-case and take down
the side-key. (Image E)
image E
Label-waterproof
earphone Cover
Charge jack Cover
※Notice: Inspect whether the label-waterproof is broken, and replace a new one in time as requested. And then,
Notice that avoid the left earphone and charger Jack when disassembling the keyboard bottom.

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5. Take down the Side-Key. (image F)
Image F
Side-Key

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6. Tear off this Mylar of the motor, Disassemble the 2 screws on the Antenna.
(Image G)
Image G
Take down
these 2 Screws
Tear off
this Mylar

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7). Take apart the MB from the keyboard top at an angle from the charger Jack
side, tear off the electric cushion, pull out the FPC plug from the MB. (Image H)
Image H
※. Notice: the slice made of iron can’t be removed from the FPC plug, if true, the whole FPC need to
be replaced.

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Image I
MIC
Key-press
receiver
KB FPC & EL set
Mylar
8.Remove the KT, Motor, receiver, MIC , the conduction cushion from the
top-case set (Image I)

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9). Tear off shield Mylar, take apart the KB FPC and Dome sets, Unsolder
the FPC by electric-iron (Image J)
Image J
※Notice: After taking apart the Dome, dip a little absolute alcohol by cotton stick to clean the PAD on the KB.
EL DomeKB FPC
Shield Mylar

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10). Remove the motor from the bracket of Antenna, take apart the spring
slice of the antenna from the MB by electric-iron, take apart the bracket
of Antenna from the MB (Image K)
Image K
※Notice: when removing the motor, stick the film onto the motor, or else, the motor
should be replaced; avoid scalding the bracket of Antenna by electric-iron.
Remove the
motor at first

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Image L
11). Take apart the SPK and the motor down-lead by electric-iron (Image L)

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12). Tear off the foam on the side-key FPC buckle , and then remove the
camera, Side-Key FPC set, tear off the conduction cushion (Image M)
Image M
Side-Key FPC Sets
the conduction
cushion of FPC
Camera Camera holder
foam
the conduction
cushion of shied
SUPPORT

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13. Take apart the bracket of GSM antenna and SPK sets. (Image N)
Image N
Speaker
※Notice the direction of removing the LCM FPC connector to prevent damaging the connector.
the bottom cover of
the bracket of antenna
Speaker foam

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13. Remove the LCD from the main board with the soldering iron, tear off
the Mylar of the FPC, and then take off the foam of the earphone (image O)
Image O
Mylar
the foam of the earphone
※Notice: the function of the Mylar is to isolate the electrostatic, if being torn off, it needs to be replaced.

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14. Take apart the LCD from the MB (Image P)
Image P
※Avoid riving the LCD Pin when removing the LCD.
LCD

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15. Take apart the GSM Sub-Module Shielding Cover from the MB (Image Q)
image Q
The GSM Sub-Module RF shielding cover
The GSM Sub-Module BB shielding cover

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Image O
The GSM Main-Module RF shielding cover
The GSM Main-Module BB shielding cover
16. Take apart the GSM Main-Module Shielding Cover from the MB (Image P)

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** Please reverse operate according to the order when assemble.
** Please according to the repair scale when dismantle.
(consult spare parts list)
The End
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