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E
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Service Manual
Service Manual
902SH
Phone
CHAPTER 3.
DISASSEMBLY AND REASSEMBLY
[1] Servicing Concerns
1. For disassembling
1. Do not remove the board of baseband section by pulling external
interface connector not to damage the board.
2. Shield case is attached on shield case holder with no space.
Do not remove together with shield case holder. If you do, you can-
not attach it again because they are soldered and in such a case,
you should take the electric pattern on the board as well.
2. For reassembling
1. Make sure that all ornamental parts have no scratch and clean.
2. Make sure that you can open and close handset (phone) smoothly
and hear hinges click.
3. Make sure that display panel is placed in a proper position without
inclination.
4. Make sure that all three battery terminals protrude evenly.
5. Make sure that the pawl of aerial is upside.
•
FASTENING TORQUE (Referential Value)
• Back Cabinet (Key)/
Front Cabinet (Key)
• Back Cabinet (Display)/
Front Cabinet (Display)
• Hinge Unit
The reference value is measured when an electric screwdriver
(HIOS CL4000) is used.
•
SOLDERING SPECIFICATION
Soldering iron must be set to 380° C for 5 seconds.
•
STANDARD POSITION OF ATTACHMENT
When replacing the following labels (marked with
place new ones on the specified positions.
Sensor, Moisture
(Small)
[Sensor, Moisture (Small)]
CONFIDENTIAL
13.8 to 15.7 N • cm
(1.4 to 1.6 Kgf • cm)
9.8 to 11.8 N • cm
(1.0 to 1.2 Kgf • cm)
), be sure to
No protrusion
Standard
position
Holder, SD PWB
Sensor Moisture (Small):
Deleted in the middle of October production.
[Sensor, Moisture (Small)]
Standard position
Move up to this line.
Attach the cover as
shown (leave no
gap between the
cover
and
Main
Display panel).
Standard position
Standard position
To the left reference position on the
front cabinet (Main Display side).
[Panel, Main Display/Screw Cover, Display (Bottom)]
Spacer Cushion,
Back Cabinet (Display)
Back Cabinet
(Display)
[Spacer Cushion, Back Cabinet (Display)/
Sensor, Moisture (Large)]
3 – 1
Standard position
Front Cabinet
(Key)
Standard position
Front Cabinet
(Display)
Panel,
Main Display
Screw Cover, Display (Bottom)
Standard position
Attach within the rib area on the
rear cabinet (Main Display side).
Sensor, Moisture (Large):
Deleted in the middle of
October production.
Standard
position
To the
left
edge
Put on
the rib.
902SH
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