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Trouble Shooting Guide, Mechanical
Trouble Shooting Guide, Mechanical
Applicable for J210i
Contents
1
General...........................................................................................2
2 Appearance Problems....................................................................2
3 Power Problems .............................................................................3
4 Network/Signal Problems ...............................................................5
5 Audio Problems ..............................................................................6
Microphone...............................................................................6
Earphone..................................................................................6
6 Alert Problems................................................................................8
Vibrator.....................................................................................8
7 Key Problems .................................................................................9
Keypad .....................................................................................9
Joystick.....................................................................................9
8 IR Problems..................................................................................10
9 Display Problems..........................................................................11
Illumination .............................................................................12
10 SIM Problems...............................................................................12
11 Charging/Capacity Problems........................................................13
12 Data Communication Problems....................................................14
13 Software Problems .......................................................................14
14 Revision History............................................................................15
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Trouble Shooting Guide, Mechanical
1 General
This document outlines the mechanical repairs that should be made in an attempt to fix the common failures that are seen in the field.
To gain a complete understanding of how to test and repair a specific failure, this document should be used in conjunction with the
Test Instructions, Mechanical and the Working Instructions, Mechanical.
2 Appearance Problems
Problem Area
Appearance
Items to Check
Visually inspect the cosmetic quality of
all user viewable surfaces
Visually inspect all keys
Visually inspect for improper gap
between seams
Repair Action Reference Image
• If dirty – Clean
• If unacceptably scratched or damaged –
Replace parts that are unacceptable
• If dirty – Clean
• If unacceptably damaged – Replace
• Reassemble or replace damaged parts as
necessary
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Trouble Shooting Guide, Mechanical
3 Power Problems
Insert a regular functionality Battery and connect a Charger to the phone. If the Battery voltage is too low, the phone will charge the
Battery without turning on the phone. (It takes less than 10 minutes) While the Battery voltage is high enough to turn on the phone, it
will show “charging only” on the LCD.
During trickle charging the Red Led behind the ON/OFF button is lid. When the phone goes over to normal charging, the Red Led will
indicate nothing, it will be turned off.
Problem Area
No Power On
Items to Check
Check whether the phone Keypad
illuminated
Visually inspect contact pads on Battery
Visually inspect Battery Connector
Visually inspect Battery Connector pads
Visually inspect the power key portion of
the Keypad for debris or damage
Repair Action
• If activation of the Keypad are detected,
refer to the “Display Problems” section
• If dirty or oxidized – Clean pads
• If damaged – Replace Battery
• If dirty or oxidized – Clean
• If damaged – Replace Battery Connector
• If can’t power on – Replace Battery
Connector
• If dirty or oxidized – Clean pads
• If dirty – Clean
• If damaged – Replace Keypad
Reference Image
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Trouble Shooting Guide, Mechanical
Problem Area
Items to Check
Visually inspect the power contact
portion of the Dome Foil
Repair Action
• If dirty – Clean
• If damaged – Replace Dome Foil
Reference Image
If the issue has not been resolved!
• Replace the Keypad and the Dome Foil,
if they have not already been replaced
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Trouble Shooting Guide, Mechanical
4 Network/Signal Problems
Problem Area
No Signal or Poor
Signal
Items to Check
Visually inspect SIM holder
Visually inspect the Antenna Connector
Visually inspect the Antenna Insert
Repair Action Reference Image
• If dirty or – Clean
• If damaged – Send to an electrical repair
location
• If dirty or oxidized – Clean
• If damaged – Send to an electrical repair
location
• If dirty or oxidized – Clean
• If damaged – Replace Frame Assy
Visually inspect the Antenna Flex Film
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• If dirty or oxidized – Clean
• If damaged – Replace the Antenna Flex
Film
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Trouble Shooting Guide, Mechanical
5 Audio Problems
Problem Area
Microphone
Earphone
No sound or poor
quality sound
Items to Check
Before proceeding !
Visually inspect the Microphone pads
Visually inspect the Microphone Assy
Before proceeding !
Visually inspect the Front Cover Insert
external
Visually inspect the Earphone pads
Repair Action
• Perform a setting reset
• If dirty or oxidized – Clean
• If damaged, dirty or oxidized - Replace
Microphone Assy
• Perform a setting reset
• If clogged – Replace the Front Cover
• If dirty or oxidized – Clean
Reference Image
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Trouble Shooting Guide, Mechanical
Problem Area
No sound or poor
quality sound
(Cont.)
Items to Check
Visually inspect the Earphone Assy
Repair Action
• If damaged, dirty or oxidized - Replace
Earphone Assy
Reference Image
If the issue has not been resolved !
• Replace the Earphone Assy if it has not
already been replaced
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Trouble Shooting Guide, Mechanical
6 Alert Problems
Problem Area
Vibrator
Loudspeaker
Items to Check
Before proceeding !
Visually inspect the Vibrator pads
Visually inspect the Vibrator Assy
Before proceeding !
Visually inspect the Speaker Connector
Repair Action
• Perform a setting reset
• If dirty or oxidized – Clean
• If damaged, dirty or oxidized - Replace
Vibrator Assy
• Perform a setting reset
• If dirty or oxidized – Clean
• If damaged – Send to an electrical repair
location
Reference Image
Visually inspect the Loudspeaker Assy
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• If damaged, dirty or oxidized - Replace
Loudspeaker Assy
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Trouble Shooting Guide, Mechanical
7 Key Problems
Problem Area
Keypad
A key on the
keypad is not
functioning or is
intermittent
Joystick
Items to Check
Before proceeding !
Visually inspect the Keypad Dome
Visually inspect the Keypad
Before proceeding !
Visually inspect the Joystick
Repair Action
• Perform a setting reset
• If damaged, dirty or oxidized - Replace
the keypad Dome
Make sure that the surface on the PCB is
cleaned before replacing.
• If damaged, dirty or oxidized - Replace
the keypad
• Perform a setting reset
• If damaged, dirty or oxidized - Replace
the Joystick Assy
Reference Image
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Trouble Shooting Guide, Mechanical
8 IR Problems
Problem Area
Will not connect
with a functional
IR device
Items to Check
Inspect the IrDA window for dirt,
scratches, and damage
Inspect the IrDA transceiver
Repair Action
• If dirty – Clean
• If damaged – Replace the IrDA window
• If dirty or oxidized– Clean
• If damaged - Send to an electrical repair
location
Reference Image
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Trouble Shooting Guide, Mechanical
9 Display Problems
Problem Area
Display
Items to Check
Check whether the keypad illuminates
Visually inspect whether the LCD flexfilm is properly connected
connector
Visually inspect the BTB connector
Visually inspect the LCD connector
into the BTB
Repair Action
• If activation of the keypad are not
detected, refer to the “Power Problems”
section
• If improperly connected - Reestablish
proper connection
• If dirty or oxidized – Clean
• If damaged – Send to an electrical repair
location
• If dirty or oxidized – Clean
• If damaged – Replace the Display
Reference Image
If issue has not been resolved !
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• Replace the Display
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Trouble Shooting Guide, Mechanical
Problem Area
Illumination
Items to Check
Before proceeding !
Visually inspect
10 SIM Problems
Problem Area
Display
“Insert SIM “
Items to Check
Inspect SIM holder
the 11 LEDS
Repair Action
• Perform a setting reset
• If dirty or oxidized– Clean
• If damaged or no light - Send to an
electrical repair location
Repair Action
• If dirty or oxidized – Clean
• If damaged – Send to an electrical repair
location
Reference Image
Reference Image
Unit indicates the
incorrect SIM is
inserted
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Check whether the phone is locked to a
particular carrier and whether the correct
carrier’s SIM is being used
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• Use Correct Carrier SIM or test SIM
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Trouble Shooting Guide, Mechanical
11 Charging/Capacity Problems
Problem Area
Battery will not
charge
Battery looses
charge quickly/
standby time seems
short
Items to Check
Visually inspect the contact pads of the
Battery
Visually the Battery connector
Visually inspect the System Connector
NOTE - Some features noticeably reduce
the amount of standby time if they are
turned on. Some examples are the back
light (when turn on all the time), Blue
tooth, and infrared.
Repair Action
• If dirty or oxidized – Clean
• If damaged – Replace the Battery
• If dirty or oxidized – Clean
• If damaged – Replace the Battery
connector
• If damaged, dirty or oxidized – Send to
an electrical repair location
• Replace the Battery
Reference Image
Perform the following repair action !
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Trouble Shooting Guide, Mechanical
12 Data Communication Problems
Problem Area
Problem
transferring data
using a direct
connection
Items to Check
Visually inspect the System Connector
13 Software Problems
• If there are problems with the response of the keypad commands, or spelling errors in the menu, if they are not related to
mechanical damage, make a master reset and flash the phone with the latest software from EMMA III.
• Checking the software revision can be done in the Service info, see chapter Service functions in the software.
Choose: Service info / SW information.
The Software revision and date will be shown in the display.
Note: Do a SW upgrade before sending the unit to a higher level. Do not
If the failure still occurs, handle the unit according to the local directives.
Repair Action
• If damaged, dirty or oxidized – Send to
an electrical repair location
scrap a phone that hasn’t been upgraded.
Reference Image
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Trouble Shooting Guide, Mechanical
14 Revision History
Rev. Date Changes / Comments
A 2005-08-22 First Release
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