BenQ S88 User manual

Release 1.0
Technical Documentation 02/2006
TD_Repair_L2.5L_S88_R1.0.pdf Page 1 of 61
Service Manual
S88
Level 1-3
Release Date Department Notes to change
R 1.0 15.02.2006 BenQ Mobile CC S CES New document
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2006©BenQ

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Table of Content
1Key Feature................................................................................................................................3
2Unit Description of S88.............................................................................................................4
3Exploded View of S88 ...............................................................................................................5
4Disassembly of S88...................................................................................................................6
5Assembly of S88......................................................................................................................20
6BenQ Service Equipment User Manual.................................................................................31
7Setup of the Software..............................................................................................................32
8Software basic settings ..........................................................................................................33
9Software Download procedure...............................................................................................34
10 Download PPF (Handset configuration)................................................................................36
11 Backup and Restore of Wap and Network Setting...............................................................38
12 Backup and Restore of Media Center content......................................................................39
13 Unlock Tool..............................................................................................................................40
14 International Mobile Equipment Identity, IMEI......................................................................42
15 General Testing Information...................................................................................................43
16 Introduction of Service Repair Documentation Level 3 (basic) – S88.............................49
17 List of available Level 3 (basic) parts....................................................................................50
18 Hardware requirements ..........................................................................................................50
19 S88 Board Layout....................................................................................................................51
20 SIM Card Problems .................................................................................................................52
21 IO Connector Problems ..........................................................................................................53
22 Battery Connector Problems..................................................................................................54
23 RF Antenna Problems.............................................................................................................55
24 Micro SD Connector Problems...............................................................................................56
25 Camera Connector Problems.................................................................................................57
26 Display Problems ....................................................................................................................58
27 Charger Problems ...................................................................................................................59
28 Keypad Problems....................................................................................................................60
29 Flash light Problems...............................................................................................................61
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1 Key Feature
System •Tri-band handset (GSM900/DCS1800/PCS1900) or
(GSM850/DCS1800/PCS1900) with internal antenna
Battery •Li – Ion 920mAh battery
Stand – by Time •Up to 200 hours
Talking Time •130min~450min
Memory •NOR flash: 128MB
•NAND flash: 256MB
•Pseudo SRAM: 64MB
•Mobile SDRAM: 128MB
External Memory •Micro SD/Transflash
Display •Display mode: Active Matrix, OLED
•Active area: 31.152mm x 38.94mm
•Pixel pitch: 0.177mm x 0.177mm
•Number of Colours: 260K
Keypad •12 numerical key (including *,#)
•5-way navigation key
•Soft keys: Left and Right
•Send key
•End/Power key
Function key •Side keys:
oVolume keys
oCamera/Video mode switch button
oCamera shutter button
Camera •2.0 mega pixel; CMOS Auto Focus camera for image and
video recording
Connectivity •USB 1.1; Bluetooth
FM Radio •Embedded in Mobile Phone
Camcorder •Support MPEG 4/ 3GP
MP3 – Player •Support MP3/AAC
•Equalizer
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2 Unit Description of S88
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3 Exploded View of S88
Battery Cover
Display Cover
Earpiece
Display
Adhesive Strip
Flex Cable
Camera
Ringer
Camera Frame
Side Screw
Rear Cover
Battery
Screws
Vibramotor
Lower Case
Shell
Flash light
Flex Cable
RF Control
Board S88
Adhesive Strip
Joystick
Keypad MMI
Flexible Keypad
Dome Keypad
Keypad
Upper Case
Shell
Key Shutter
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4 Disassembly of S88
All repairs as well as disassembling and assembling have to be carried out in an ESD
protected environment and with ESD protected equipment/tools. For all activities the
international ESD regulations have to be considered.
For more details please check information in c – market
https://market.benqmobile.com/SO/welcome.lookup.asp
There you can find the document “ESD Guideline”.
Step 1
Remove Battery
Cover.
Step 2
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Step 3
Remove Battery.
Step 4
Step 5
Open Handset – Cover to remove Side
Screw. Use the Torque – Screwdriver T5.
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Step 6
Remove Screw.
Step 7
Remove Camera Cover by using Alternative
Opening Tool carefully.
Step 8
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Step 9
Remove screws with the Torque –
Screwdriver.
T5
Step 10
Remove Lower Case Shell from Upper
Case Shell with Alternative Opening Tool.
Be very careful.
Step 11
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Step 12
Remove Ringer by using Tweezers.
Step 13
Remove Vibramotor by using Tweezers.
Step 14
Use Tweezers to disconnect the Flex Cable
from the RF Control Board sockets.
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Step 15
Step 16
Pull the Memory Card Cover forward to
remove the RF Control Board.
Step 17
Remove RF Control Board from Lower
Case with Alternative Opening Tool
carefully.
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Step 18
Step 19
Disconnect the Adhesive Strip with Flex
Cable from the RF Control Board by using
Tweezers carefully.
Step 20
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Step 21
Step 22
Step 23
Disconnect Flash light Flex Cable from
Camera Frame. Take care of the Flex
Cable!!!
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Step 24
Remove Camera with Camera Frame by
pressing the hooks together.
Step 25
Step 26
Disassemble Camera Frame from Camera.
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Step 27
Step 28
Remove Joystick by using Tweezers.
Step 29
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Step 30
Remove Microphone Shielding by using
Tweezers carefully.
Step 31
Remove the Flash light Flex Cable from the
RF Control Board. Use Tweezers very
carefully!
Step 32
Remove the Display by using the
Alternative Opening Tool.
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Step 30
To avoid scratches it is mandatory to place
a protection foil onto the Display!!!
Step 31
Use Alternative Opening Tool to remove the
Keypad MMI.
Step 32
Remove Keypad by using Alternative
Opening Tool.
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Step 33
Step 34
Remove the Side Keys by pushing them
outside the frames.
Step 35
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Step 36
Step 37
Remove Camera – Video - Key by using
Tweezers.
Step 38
Remove the Earpiece with the Alternative
Opening Tool.
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Overview Upper Parts Overview Lower Parts
Upper
Case Shell
Adhasive
Strip with
Flex Cable
PCB Dis
p
la
y
Lower
Case Shell Rear Cover
Battery Cover
Ke
yp
ad
Flex Cable
with Flash
Ear
p
iece Joystick
Screws
Battery
Camera Frame
and Camera Vibramotor
Side Ke
y
s Ke
yp
ad MMI Ringer
5 Assembly of S88
Step 1
Assemble Earpiece by using Tweezers.
Step 2
Assemble Camera – Video – Key by using
Tweezers.
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