Sony Ericsson Z200 User manual

Trouble shooting Guide, SP/Mechanical
4/00021-1/FEA 209 544/81 A
Sony Ericsson Mobile Communications AB
42/1
Trouble Shooting Guide, SP/Mechanical
Applicable for Z200/Z208
Contents
1Explanations ....................................................................................................................2
1.1 Service function in the software ........................................................................2
1.2 Liquid damage ................................................................................................... 2
1.2.1 Water Damage Indicator....................................................................................2
1.2.2 Action ................................................................................................................3
2Network Problems ..........................................................................................................4
3On/Off problems .............................................................................................................5
4Audio problems ...............................................................................................................7
4.1 Loudspeaker Assy (Polyphonic)........................................................................7
4.2 Microphone Assy...............................................................................................7
5Display/Illumination problems ......................................................................................8
6Capacity/Charging Problems.........................................................................................9
6.1 Charging ............................................................................................................9
6.2 Capacity.............................................................................................................9
7SIM Problems................................................................................................................10
8Key Problems ................................................................................................................11
9Alert Problems ..............................................................................................................12
10 Data Communication Problems...................................................................................13
11 Infrared Port Problems ................................................................................................14
12 Flip Problems ................................................................................................................15
13 Software Problems ........................................................................................................ 16
14 Revision History............................................................................................................17

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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1 Explanations
The Go / No Go test has to be performed with a mounted phone.
1.1 Service function in the software
The service menu will be accessed with the following key combination.
→＊←←＊←＊
There are as follows:
1. Service info
2. Service settings
3. Service tests
4. Text labels
In the software of the phone there is a built in service functionality that allows you to test
some of the functions of the phone. (See point 3 above) This is how it looks:
1. Display
2. LED/Illumination
3. Keyboard
4. Buzzer
5. Earphone
6. Microphone
7. Vibrator
8. Real time clock
9. Flip counter
10. Total call time
1.2 Liquid damage
1.2.1 Water Damage Indicator
In the phone there is placed a Water Damage Indicator that can give you a hint to see
if the phone is damage by liquid or not. This Water Damage Indicator is located near
the SIM reader (Fig.1.1) and it is possible to see it without disassemble the phone.

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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Fig1.1
On the pictures below you will see the difference between a Water Damage Indicator
that has been in contact with liquid (Fig.1.3) and one which has not been exposed to
liquid (Fig.1.2)
This Water Damage Indicator has not been in
contact with liquid.
Fig1.2
This Water Damage Indicator has been in
contact with liquid. The colour has been
changed, the red dots has turn into pink dots. In
this case you should check the phone for liquid
damage.
Fig1.3
1.2.2 Action
Make a general visual inspection for corrosion or oxidation from possible liquid
damage. No further action should be taken for a liquid damaged phone. Handle the
unit according to local company or GSP directives.

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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2 Network Problems
• Make a general visual inspection for corrosion, oxidation or mechanical damage
according to point 1.2.
• Check that the antenna flex film is properly fitted and undamaged, dirty, or oxidized.
(Fig.2.1). Replace the antenna flex film if necessary.
• Check that the Antenna Connector (Fig 2.2) is not mechanical damaged, dirty or
oxidized. Replace it if necessary.
• Check that the Antenna Connector and Antenna Flex film (Fig2.3) is well connected.
If the failure still occurs, handle the unit according to the local company or the GSP
directives.
Fig 2.1 Fig 2.2
Fig2.3

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Sony Ericsson Mobile Communications AB
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3 On/Off problems
• Make a general visual inspection for oxidation, corrosion or liquid damage according to
point 1.2.
• Check that the battery pads (Fig.3.1.) are not mechanical damaged, dirty or oxidized. If
necessary replace the battery.
• Check that the Battery Connectors (Fig.3.2.) are not mechanical damaged, dirty or
oxidized. Replace it if necessary.
• Check the Keypad or Dome Foil or “On” key (Fig.3.3) is not mechanical damaged dirty
or oxidized. Replace or clean it if necessary.
• Check that the System Connector (Fig.3.4) is not incorrectly soldered, mechanical
damaged, dirty or oxidized. Replace it if necessary.
• Check that the battery connector pads (Fig.3.5.) are not dirty or oxidized. Clean them if
necessary.
If the failure still occurs, handle the unit according to the local company or the GSP
directives.

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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Fig.3.1 Fig.3.2
Fig.3.3 Fig.3.4
Fig.3.5

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4 Audio problems
• Make a general visual inspection for oxidation or corrosion from liquid damage
according to point 1.2.
4.1 Loudspeaker Assy (Polyphonic)
• Turn on the phone. Go to service test menu; choose “5.Earphone” press any key to check
that the Earphone Assy is working properly.
• Check that the Earphone Assy pads (Fig 4.1) are not dirty or oxidized. Clean them if
needed.
• Check that the Earphone Assy (Fig.4.2) is not mechanical damaged, dirty or oxidized.
Replace it if necessary.
Fig.4.1 Fig.4.2
4.2 Microphone Assy
• Turn on the phone. Go to service test menu; choose “6.Microphone” (an audio loop is
activated) check that the Microphone Assy is working properly.
• Check that the Microphone Connector (Fig.4.3) is not oxidized. Replace it if necessary.
• Check that the Microphone Assy (Fig.4.4) is not mechanical damaged, dirty or oxidized.
Replace it if necessary.
Fig.4.3 Fig.4.4
If the failure still occurs, handle the unit according to the local company or the GSP
directives.

Trouble shooting Guide, SP/Mechanical
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5 Display/Illumination problems
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Turn the phone on. Check the LCD and the illumination. The illumination is lightened
when the phone starts and will continue for approximately 20 seconds if the
settings/Display/Light/Automatic is selected.
• Turn the phone on. Go to service test menu; choose “1.Display”. You should see a
pattern, check that no lines or pixels are missing, and that there is no discolouration. If
necessary replace the Main Display Assy.
• If all segments are missing check that the LCD connector (Fig.5.1 & Fig.5.2) and Flex
film (BTB to FPC) (Fig 5.3) are not mechanical damaged, dirty or oxidized. Replace the
Upper PCB Assy (Fig 5.4) or Flex film (BTB to FPC) if necessary.
• Turn the phone on. Go to service test menu; choose “2.LED/Illumination”. The
illumination should start flashing~1Hz.
• Check that all 16 Keypad LEDs have the same illumination strength.
• Check that both Displays are lighting up properly. Replace the Upper PCB Assy or the
Main Display if necessary.
• Check that the top led is flashing (red light).
If the failure still occurs, handle the unit according to the local company or the GSP
directives.
Note: When replacing the displays the contrast should be checked. If necessary, adjust the
contrast in service settings menu. Remember to store the setting with”YES”.
Fig.5.1 Fig.5.2
Fig 5.3 Fig 5.4

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6 Capacity/Charging Problems
• Make a general visual inspection for oxidation or corrosion from liquid damage
according to point 1.2.
6.1 Charging
• Insert a working battery and connect a working charger to the phone. If the battery
voltage is too low, you must charge the battery without turning on the phone (this will
usually take less than 10 minutes) and when the battery voltage is high enough the phone
will be able to turn on and show charging in the display.
• Check that the system connector (Fig.5.1) is incorrectly soldered, not mechanical
damaged, dirty or oxidized. Replace it if necessary.
If the failure still occurs, handle the unit according to the local company or the GSP
directives.
Fig.5.1
6.2 Capacity
• The standby time will be reduced if the backlight is turned on all the time, or if the
infrared port is turned on.

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Sony Ericsson Mobile Communications AB
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7 SIM Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Insert a SIM card with known function. If the display shows “Insert card” there is a SIM
problem. If it shows “Insert correct card” the phone might be SIM locked. In this case
use a test SIM card.
• Check that the SIM reader (Fig.7.1) is incorrectly soldered, not mechanical damaged,
dirty or oxidized. Replace it if necessary.
If the failure still occurs, handle the unit according to the local company or the GSP
directives.
Fig.7.1

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8 Key Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Turn the phone on. Go to service test menu, choose “3.Keyboard”. Press all the buttons.
The pressed key will be shown in the Main Display.
• Check that the mechanical response feels normal,and that all the keys had been shown in
the display. If necessary replace the dome foil (Fig.8.1.).
• Turn the phone on. Go to service test menu; choose “3.Keyboard”. Check the Sidekey
(no click should be heard). Check that the mechanical response feels normal.
• Check that the Sidekey not mechanical damaged. Replace it if necessary.
• Check that the Sidekey PCB (Fig.8.2.) is incorrectly soldered, not mechanical damaged,
dirty or oxidized.
• If the Dome Foil will be replaced, make sure that the surface on the PCB is cleaned,
remove glue and dust from the PCB Surface.
If the fault still remains, send the unit on according to the local company directives.
Fig.8.1 Fig.8.2

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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9 Alert Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Turn on the phone. Go to service test menu; choose “4.Buzzer” use the joystick or the
Sidekey to increase or decrease the ring volume. Check that all steps are working
properly (the tune heard is the selected one in the menu).
• Check that the Loadspeaker (Poliphonic) Assy (Fig.9.1) is not mechanical damaged,
dirty or oxidized. Replace it necessary.
• Check that Loadspeaker (Poliphonic) Assy pads (Fig.9.2) are not dirty or oxidized.
Clean them if necessary.
• Turn on the phone. Go to service test menu; choose “7.Vibrator” press any key to check
if the vibrator is working properly.
• Check that the Vibrator Assy (Fig.9.3) is not mechanical damaged, dirty or oxidized.
Replace it if necessary.
• Check that the vibrator pads on the PCB (Fig.9.4) are not dirty or oxidized. Clean them if
necessary.
If the fault still occurs, handle the unit according to the local company or the GSP directives.
Fig.9.1 Fig.9.2
Fig.9.3 Fig.9.4

Trouble shooting Guide, SP/Mechanical
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10 Data Communication Problems
If no communication is accomplished with the system connector:
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Check that the system connector (Fig.10.1.) is incorrectly soldered, not mechanical
damaged, dirty or oxidized. Replace it if necessary.
If the fault still occurs, handle the unit according to the local company or the GSP directives.
Fig.10.1

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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11 Infrared Port Problems
If no communication is accomplished with the Infrared port:
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Check there is no dust, or dirt in the IrDA window, Clean it if necessary.
• Check that the IrDA window is not scratched or damaged. Replace it if necessary.
If the fault still occurs, handle the unit according to the local company or the GSP directives.

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12 Flip Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
• Turn on the phone. Go to service test menu; choose “9.Flip Counter”. Open the shell; the
flip counter value will be increased in the display.
• Check that the magnet (Fig.12.1.) is not mechanical damaged, dirty or oxidized. Replace
the Upper inside Cover Assy if necessary.
If the fault still occurs, handle the unit according to the local company or the GSP directives.
Fig.12.1

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13 Software Problems
• If there are problems with the response of the key board commands or spelling errors in
the menu, which are not related to mechanical damage, make a master reset and flash the
phone with the latest software from EMMA II.
• 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 are shown in the display.
If the fault still remains, send the unit on, according to the local company directives.

Trouble shooting Guide, SP/Mechanical
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Sony Ericsson Mobile Communications AB
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14 Revision History
Rev. Date Changes / Comments
A 2003-10-30 First release