Page 1
Working Instruction, Mechanical
Working Instruction, Mechanical
Applicable for K770
CONTENTS
1 Introduction .............................................................................. 3
1.1 Equipment.................................................................................4
1.2 General cautions ...................................................................... 5
2 Disassembly ............................................................................. 6
2.1 Overview ...................................................................................6
2.1.1 Battery Cover Assy & Battery................................................7
2.1.2 Memory Stick Micro (M2) 128 MB ......................................... 8
2.1.3 Front Cover Assembly...........................................................9
2.1.4 PBA Unit & Frame Assembly...............................................10
2.1.5 Keypad support plate Assembly.......................................... 11
3 Replacements......................................................................... 12
3.1 Battery Cover..........................................................................13
3.2 Memory Stick Micro (M2) 128 MB ......................................... 13
3.3 Front Cover Assembly ........................................................... 13
3.4 Frame Assembly..................................................................... 13
3.5 Keypad support plate Assembly...........................................13
3.6 LCD Module ............................................................................14
3.7 Ear Speaker............................................................................. 16
3.8 M2 & SIM Assembly ...............................................................17
3.9 Antenna box & Speaker / Gasket..........................................19
3.10 Camera Module & Camera lens.............................................20
3.11 VGA Camera ...........................................................................22
3.12 System Connector &System Connector gasket.................. 24
3.13 Keypad Assembly Navi..........................................................25
3.14 Keypad Assembly Numeric ................................................... 26
3.15 Camera cap Assembly ........................................................... 27
3.16 Camera door PWBA ............................................................... 28
3.17 Camera Key Assembly...........................................................29
3.18 On/Off Key Assembly.............................................................30
3.19 Volume Key Assembly...........................................................30
3.20 KRH Label ...............................................................................31
4 Reassembly ............................................................................ 32
4.1 Overview .................................................................................32
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4.1.1 Keypad support plate Assembly.......................................... 33
4.1.2 PCBA Unit & Frame Assembly............................................ 34
4.1.3 Front Cover Assembly.........................................................35
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Working Instruction, Mechanical
4.1.4 Memory Stick Micro (M2) 128 MB ....................................... 36
4.1.5 Battery & Battery Cover Assembly ...................................... 37
5 Revision history ..................................................................... 38
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Page 3
Working Instruction, Mechanical
1 Introduction
K770
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Page 4
Working Instruction, Mechanical
1.1 Equipment
SPECIAL TOOLS
• NTZ 122 459 Torque screwdriver (or equivalent)
• NTZ 122 288 Torx bit no. 6
• NTZ 112 1052 JCIS bit
• NTZ 112 302/2 Front opening tool
• NTZ 122 521 Flex film assembly tool
• NTZ 112 1077 Vga camera tool
• 1201-9362
• NTZ 112 590 Guitar pick
3Mpixel Camera removal tool
STANDARD TOOLS
• Dentist hook
• Blunt pair of tweezers
• Guitar pick
ESD EQUIPMENT
Protect the phone from ESD damages whenever it has
been opened by using:
• ESD-wristband
• ESD-gloves
LABEL EQUIPMENT
The following special equipment is required when replacing
or installing a new label:
• Hot air flow solder station
• Zebra printer connected to computer
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Working Instruction, Mechanical
1.2 General cautions
The following cautions are considered to be generic for all phone models and will not be repeated in
the Disassembly, Replacements and Reassembly sections:
•
KEEP ALL CONTACT SURFACES CLEAN
BE CAREFUL WHEN USING TOOLS LIKE THE DENTIST HOOK, TWEEZERS, OPENING TOOLS, GUITAR PICK
ETC. TO AVOID SCRATCHES OR DAMAGES TO THE EXTERIOR AND INTERIOR PARTS OF THE PHONE
BE CAREFUL NOT TO DAMAGE ANY CONTACT SPRINGS
•
•
REMEMBER TO REMOVE THE PROTECTION FOILS ON NEW PARTS SUCH AS THE FRONT COVER AND LCD
•
NEVER TOUCH THE DISPLAY GLASS
•
USE AIR BLOW EQUIPMENT TO KEEP THE FRONT WINDOW AND DISPLAY MODULE DUST FREE
ADHESIVES
Use a dentist hook or a blunt pair of tweezers to remove old adhesives.
If necessary, clean the surface with isopropyl alcohol before attaching new adhesives.
!
!
!
!
!
!
PRECAUTIONARY ACTIONS
Press the On/Off button to turn off the phone before the
start of the disassembly.
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Page 6
Working Instruction, Mechanical
2 Disassembly
When you are going to replace a part being listed in Replacements, the instruction of that section
usually begins by directing you to this Disassembly section with a specification of the instructions you
have to carry out in order to disassemble the phone as far as needed before returning to
Replacements for the actual replacement.
REPLACEMENTS
Start
Contents
page
DISASSEMBLY
2.1 Overview
The disassembly is done in the following sequence:
1. Battery Cover (a) & Battery(b)
2. Front Cover asm
3. PBA unit
4. Frame asm
5. Keypad support plate asm
REASSEMBLY
Done
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Working Instruction, Mechanical
2.1.1 Battery Cover Assy & Battery
Battery cover key.
Shift the battery cover key.
Lift the battery cover assy down and release it from the
frame assembly.
Release the battery at the bottom and remove it.
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Working Instruction, Mechanical
2.1.2 Memory Stick Micro (M2) 128 MB
1. Press in (shortly) the memory stick micro (M2) 128 MB.
2. Remove the memory stick micro (M2) 128 MB with your
fingers.
Assemble (push in until it locks) a new memory stick micro
(M2) 128 MB with your fingers.
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Working Instruction, Mechanical
2.1.3 Front Cover Assembly
Use torx screwdriver to remove the four screws marked with
a red ring.(4pcs)
And use cross screwdriver to remove the six screws
marked with a yellow ring.
Unlock the side snaps with the front opening tool when
disassembling the front cover from the PCBA unit.
Separate the front cover assembly from the module.
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Working Instruction, Mechanical
2.1.4 PBA Unit & Frame Assembly
Use cross screwdriver to remove the two screws.
T
HE FRAME HAS GOT TWO SNAP HOOKS
!
Use the front opening tool or with your fingers to unsnap the
frame assembly from the PCBA.
Grab the frame assembly by one hand and carefully push
the PCBA unit up by the other hand as the picture.
PBA unit
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Working Instruction, Mechanical
2.1.5 Keypad support plate Assembly
Separate the Key support plate from the PCBA unit.
Release the snap between Keypad support plate and M2
SIM assembly with Opening tool or Blunt pair of tweezers.
Carefully open the Key support plate connector with blunt
pair of tweezers and avoid damaging the FPCB.
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Working Instruction, Mechanical
3 Replacements
Search for the part to be replaced on the Contents page and go to that instruction to be found in this
Replacements section.
The instruction usually begins by directing you to the Disassembly section with a specification of the
instructions you have to carry out in order to disassemble the phone as far as needed before the
actual replacement.
Go back to this Replacements section and carry out the instruction.
The instruction usually ends by directing you to the Reassembly section with a specification of the
instructions you have to carry out in order to reassemble the phone.
REPLACEMENTS
Start
Contents
page
DISASSEMBLY REASSEMBLY
Done
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Working Instruction, Mechanical
3.1 Battery Cover
Follow the 2.1.1 Disassembly instructions!
Prepare the new battery cover.
Follow the 4.1.5 Reassembly instructions!
3.2 Memory Stick Micro (M2) 128 MB
Follow the 2.1.2 Disassembly instructions!
Prepare the new memory stick (M2) 128 MB.
Follow the 4.1.4 Reassembly instructions!
3.3 Front Cover Assembly
Follow the 2.1.1 – 2.1.3 Disassembly instructions!
Prepare the new front cover assembly.
Follow the 4.1.3 Reassembly instructions!
3.4 Frame Assembly
Follow the 2.1.1 – 2.1.4 Disassembly instructions!
Prepare the new frame assembly.
Follow the 4.1.2 Reassembly instructions!
3.5 Keypad support plate Assembly
Follow the 2.1.1 – 2.1.5 Disassembly instructions!
Prepare the new Keypad support plate Assembly.
Follow the 4.1.1 Reassembly instructions!
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Working Instruction, Mechanical
3.6 LCD Module
REMOVAL
Follow the 2.1.1 – 2.1.5 Disassembly instructions!
LCD Module is attached with snap to the PCBA unit.
Unsnap with blunt pair of tweezers.
Carefully lift up the LCD module.
Use the flex film opening tool to remove the flex film.
INSTALLATION
Use the flex film opening tool and insert the flex film into the
connector.
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Working Instruction, Mechanical
LCD Module continued
Use the flex film opening tool and carefully press the bar on
the connector towards the connector to close it.
Press the bar on the connector towards the connector by
finger evenly to connect completely.
T
HE LCD MODULE HAS GUIDING PINS
!
Use the guiding pins to position the LCD module on the
PCBA unit.
Lock the LCD module’s snap to PCBA unit.
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Working Instruction, Mechanical
3.7 Ear Speaker
REMOVAL
Follow the 2.1.1 – 2.1.5 Disassembly instructions!
And Follow the 3.6 Disassembly instructions!
Push the ear speaker upward with finger as shown in the
picture.
INSTALLATION
Notice the pin direction before inserting the ear speaker to
the LCD module’ speaker hole.
Press the ear speaker evenly to be inserted into the
speaker hole properly
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Working Instruction, Mechanical
3.8 M2 & SIM Assembly
REMOVAL
Follow the 2.1.1 – 2.1.4 Disassembly instructions!
M2 SIM assembly is attached with snaps to the PCBA unit
and Keypad support plate respectively. Release the snaps
with blunt pair of tweezers.
Lift the M2 SIM assembly from PCBA unit carefully.
Open the M2 SIM assembly connector carefully. Take care
not to damage the FPCB.
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Working Instruction, Mechanical
M2 & SIM Assembly continued
INSTALLATION
Use the blunt pair of tweezers to assemble the connector.
Press the M2 SIM assembly down onto the PCBA unit to
snap together.
Press the Keypad support plate down to make it snap to M2
SIM assembly.
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Working Instruction, Mechanical
3.9 Antenna box & Speaker / Gasket
REMOVAL
Follow the 2.1.1 – 2.1.4 Disassembly instructions!
Use the blunt pair of tweezers to release the snap between
Antenna box and PCBA unit.
Use your finger to remove the Antenna box from PCBA unit.
INSTALLATION
Use your finger to carefully press it into the antenna guide
hole until it’s secured with a snap fit.
SPEAKER GASKET
REMOVAL & INSTALLATION
Use the blunt pair of tweezers to remove the speaker
gasket.
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Working Instruction, Mechanical
3.10 Camera Module & Camera lens
REMOVAL
Follow the 2.1.1 – 2.1.4 Disassembly instructions!
Use 3Mpixel camera removal tool to remove Camera
3Mpixel.
Position the 3Mpixel camera tool according to the picture.
Push the 3Mpixel camera tool to bottom and wiggle the tool
side to side before lifting the tool up.
Use tweezers to remove the 3Mpixel camera
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Working Instruction, Mechanical
Camera Module & Camera lens continued
INSTALLATION
Notice the small slot in the socket and the small slot in the
Camera 3Mpixel.
Use tweezers to position the Camera 3Mpixel
Press gently on the top of the Camera 3Mpixel until it
snaps into place.
C
AUTION! DO NOT TOCH THE LENS
Follow the 4.1.5 – 4.1.9 Reassembly instructions!
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Working Instruction, Mechanical
3.11 VGA Camera
REMOVAL
Follow the 2.1.1 – 2.1.5 Disassembly instructions!
Use VGA camera removal tool to remove VGA Camera.
Push the VGA camera tool to bottom and wiggle the tool
side to side before lifting the tool up.
Use tweezers to remove the VGA camera
INSTALLATION
Notice the small slot in the socket and the small slot in the
VGA camera.
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Working Instruction, Mechanical
VGA Camera continued
Use tweezers to position the VGA camera
Press gently on the top of the VGA camera until it
snaps into place.
Follow the 4.1.1 – 4.1.5 Reassembly instructions!
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Working Instruction, Mechanical
3.12 System Connector &System Connector gasket
REMOVAL
Follow the 2.1.1 – 2.1.5 Disassembly instructions!
Use your fingers to remove the System Connector.
Use the tweezers to remove the system connector gasket.
INSTALLATION
OTE THE ORIENTATION OF THE SYSTEM CONNECTOR!
N
Use the tweezers to mount the system connector gasket.
Use your fingers to mount the System Connector.
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Working Instruction, Mechanical
3.13 Keypad Assembly Navi
REMOVAL
Follow the 2.1.1 – 2.1.3 Disassembly instructions!
Use tweezers to separate Keypad assembly Navi from the
front cover. .
INSTALLATION
Position the keypad assembly Navi into the front cover.
Carefully press to attach the keypad assembly Navi to the
front cover.
Follow the 4.1.4 – 4.1.5 Reassembly instructions!
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Working Instruction, Mechanical
3.14 Keypad Assembly Numeric
REMOVAL
Follow the 2.1.1 – 2.1.3 Disassembly instructions!
Use tweezers to separate Keypad assembly Numeric from
the front cover.
INSTALLATION
Position the keypad assembly Numeric into the front cover.
Band the Keypad assembly Numeric and insert it to the
other side as shown in the picture.
Carefully press to attach the keypad assembly Numeric to
the front cover
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Working Instruction, Mechanical
3.15 Camera cap Assembly
REMOVAL
Follow the 2.1.1 – 2.1.4 Disassembly instructions!
Use the blunt pair of tweezers to remove Camera cap from
the Frame assembly.
INSTALLATION
Use your finger and press the Camera cap.
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Working Instruction, Mechanical
3.16 Camera door PWBA
REMOVAL
Follow the 2.1.1 – 2.1.4 Disassembly instructions!
Lift up the Camera door PWBA with the tweezers.
Use tweezers to pull up the Camera door PWBA.
INSTALLATION
Place the Camera door PWBA on the frame and press it
evenly.
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Working Instruction, Mechanical
3.17 Camera Key Assembly
REMOVAL
Follow the 2.1.1 – 2.1.3 Disassembly instructions!
Remove the camera key assembly.
The Camera key assembly
INSTALLATION
T
HE FRAME HAS GOT TWO GUIDING PINS
Attach the camera key assembly at both ends.
Note the right direction of the Camera Key assembly when
assembling.
!
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Working Instruction, Mechanical
3.18 On/Off Key Assembly
REMOVAL
Follow the 2.1.1 – 2.1.3 Disassembly instructions!
Use the tweezers to remove the power key assembly.
INSTALLATION
Use the tweezers to mount the power key assembly.
3.19 Volume Key Assembly
REMOVAL
Follow the 2.1.1 – 2.1.3 Disassembly instructions!
Use the tweezers to remove the Volume key assembly from
the frame.
INSTALLATION
Use the tweezers to mount the Volume key assembly.
Note the right direction of the Camera Key assembly when
assembling.
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Working Instruction, Mechanical
3.20 KRH Label
REMOVAL
Follow the 2.1.1 Disassembly instructions!
• Read the old label and/or write the information into the
“Label make” program before removal
• Note the position of the label before removal
• Heat up the label by using hot air, if needed
• Carefully remove the label without causing scratches
• If there still are residues, clean the surface with isopropyl
alcohol
INSTALLATION
• Check that the proper label format is loaded in the Zebra
printer
• Write a new label by using the program “Label make”
and check that the printing is OK
• Take the new label and place it onto the frame as in the
adjacent picture
O
NE LABEL ONLY IS ALLOWED
!
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Working Instruction, Mechanical
4 Reassembly
After replacing a part being listed in Replacements, the instruction of that section usually ends by
directing you to this Reassembly section with a specification of the instructions you have to carry out
in order to reassemble the phone.
REPLACEMENTS
Start
Contents
page
DISASSEMBLY
4.1 Overview
REASSEMBLY
Done
The reassembly is done in the following sequence:
1. Keypad support plate asm
2. Frame asm
3. PBA unit
4. Front Cover asm
5. Battery (a) and Battery Cover (b)
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Working Instruction, Mechanical
4.1.1 Keypad support plate Assembly
Connect the connector between Keypad support plate
assembly and PCBA unit.
Press the Keypad support plate down to make it snap to M2
SIM assembly.
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Working Instruction, Mechanical
4.1.2 PCBA Unit & Frame Assembly
Align the end of PCBA unit with the end of Flame assembly.
Press the PCBA unit to snap to the Flame assembly.
Install two silver screws with torque screwdriver at 11 Ncm
with a JCIS.
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Working Instruction, Mechanical
4.1.3 Front Cover Assembly
KEY REASSEMBLY
Follow the 3.18 – 3.20 Reassembly instructions!
- Camera Key Assembly
- On/Off key Assembly
- Volume Key Assembly
Assemble the Front cover and PCBA unit using the order
shown.
Install four silver screws (marked with a yellow arrow) with
torque screwdriver at 11 Ncm with a JCIS.
Install four golden screws (marked with a red arrow) with
torque screwdriver at 17 Ncm with a T6 bit.
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Working Instruction, Mechanical
4.1.4 Memory Stick Micro (M2) 128 MB
Assemble (push in until it locks) a new memory stick micro
(M2) 128 MB with your fingers.
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Working Instruction, Mechanical
4.1.5 Battery & Battery Cover Assembly
Put the top of the battery against the battery connector.
Press the battery down at the bottom of the battery
compartment.
Align the bottom of the Battery cover assembly with the
guide line of the Flame assembly.
Use your hands to close the Battery cover assembly.
Press the Power key after assembly completed to check up
the operation.
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Working Instruction, Mechanical
5 Revision history
Rev. Date Changes / Comments
A 2007-09-24 Initial release
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