Ericsson T65 Setup guide

Repair Instruction, Electrical
4/00021-2/FEA 209 544/62 C
Ericsson Mobile Communications AB
Approved according to 000 21-LXE 107 42/1
RepairInstruction T65,Electrical
by Toko ([email protected])
Contents
1 Appearance Problems.....................................................................................................2
2 Network Problems...........................................................................................................3
3 On/Off Problems.............................................................................................................4
4 Audio Problems...............................................................................................................5
5 Display/Illumination Problems......................................................................................7
6 Capacity/Charging Problems.........................................................................................9
7 SIM Problems................................................................................................................10
8 Key Problems.................................................................................................................11
9 Alert Problems...............................................................................................................12
10 Data Communication Problems...................................................................................13
11 Software Problems........................................................................................................14
12 Service functions in the software.................................................................................15
13 Revision History............................................................................................................16

Repair Instruction,Electrical
4/00021-2/FEA 209 544/62 C
Ericsson Mobile Communications AB
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1 Appearance Problems
• Make a general visual inspection for oxidation or corrosion from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• Check the general condition of the system connector (Fig.1). If necessary, clean or
replace the system connector.
• Check that the SIM-holder is not mechanically damaged (Fig.2 and Fig.3). If necessary,
replace the SIM drawer or/and SIM holder or handle the unit on according to the local
company directives.
• Check the rear and the front covers for cracks and check that both ends fit correctly. If
necessary, replace the rear and/or the front cover or handle the unit on according to the
local company directives.
• If the fault still remains handle the unit on according to the local company directives.
Fig.1 Fig.2 Fig.3

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Ericsson Mobile Communications AB
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2 Network Problems
• Make a general visual inspection for oxidation or corrosion from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• Insert a SIM card and switch the phone on. Try to make a call. If there are any problems
clean the contact surface on the PCB (Fig. 1) and replace the rear cover with antenna. Try
to make a call again.
• If the fault still remains, put the old rear cover with antenna back in the phone and handle
the unit on according to the local company directives.
Fig. 1

Repair Instruction,Electrical
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Ericsson Mobile Communications AB
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3 On/Off Problems
• Try to switch the phone on with its battery.
• If the phone starts with its battery, switch it off and connect a charger in the system
connector.
If the phone starts with the charger, there are probably no On/Off problems with it.
If the phone does not start with the charger, see chapter Capacity/Charging Problems.
• If the phone does not start with its battery, connect a charger in the system connector.
If the phone starts with charger (illumination and display turn on) and indicate charging
check the keyboard and the dome switch for malfunction (Fig. 1). If necessary, replace
the keyboard and/or the dome assembly or handle the unit on according to the local
company directives.
If the phone does not start with the charger but indicate charging (red top diode lights) the
battery is probably deeply discharged. After 1- 15 minutes of charging the phone is
supposed to start (illumination and display turns on). Charge the battery fully.
If the phone does not start (illumination and display does not turn on) after 15 minutes or
if the phone does not start with the charger and does not indicate charging, take out the
battery.
Check that the battery contact surface is free from dust/dirt and mechanical damage
(Fig.2 ). Clean the battery contacts surface if necessary.
Check the battery connector for dirt/mechanical damage(Fig. 3). If necessary, clean or
replace the battery connector.
Put the battery back in the phone, connect a charger in the system connector and try
again.
If the fault remains replace the battery to one with known function and start from
beginning (Try to switch on the phone…).
• Make a general visual inspection for corrosion or oxidation from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• If the fault remains, try to upgrade the phone with the latest software.
• If the fault still remains, handle the unit on according to the local company directives.
Fig. 1 Fig. 2 Fig. 3

Repair Instruction,Electrical
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Ericsson Mobile Communications AB
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4 Audio Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• Make a call to another phone and check if it is the microphone or the earphone that causes
the audio problem.
Another way of testing the earphone and microphone is to use the service tests in the
software, see chapter 12. Service functions in the software.
Choose: 3. Service tests / 6. Earphone. While a key is pressed a tone should be heard from
the earphone.
Choose: 3. Service tests / 7. Microphone. Your voice should be heard in the earphone
without delay when you are speaking in the microphone.
If the customer complains about handsfree problem, connect a handsfree and test
handsfree function.
• If the earphone causes problem, check the earphone connection pads on the board for
dirt/mechanical damage (Fig. 1). If necessary, clean the pads.
Check the earphone for dirt/mechanical damage (Fig. 2). If necessary clean the earphone
connector or replace the earphone.
When the earphone is replaced the earphone volume should be checked. If it is necessary,
change the earphone parameters with the service tests in the software, see chapter 12.
Service functions in the software.
Choose: 2. Service settings / 3.Select speaker/Reset 1.
• If the microphone causes problem, check the microphone connection pads on the board
for dirt/mechanical damage (Fig. 3). If necessary, clean the pads.
Check the microphone connector for dirt/mechanical damage (Fig. 4). If necessary
replace the microphone.
When the microphone is replaced the microphone volume should be checked. If it is
necessary, change the microphone parameters with the service tests in the software, see
chapter 12. Service functions in the software.
Choose: 2. Service settings / 2.Select microphone /Reset 1.
• If the phone has handsfree problem, check the system connector for dirt/mechanical
damage (Fig. 5). If necessary, clean or replace the system connector.
• If the fault still remains handle the unit on according to the local company directives.

Repair Instruction,Electrical
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Ericsson Mobile Communications AB
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Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5

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5 Display/Illumination Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• Switch the phone on and press some buttons. Check the display and the illumination. The
illumination is lightened when the phone starts in ~20 seconds if
Settings/5.Display/1.Light/Automatic is selected.
Another way of testing the display and illumination is to use the service tests in the
software, see chapter 12. Service functions in the software.
Choose: 3. Service tests / 1. Display. Different contrasts are shown. Check that no rows or
pixels are missing.
Choose: 3. Service tests / 2. LED/illumination. The illumination will switch on and off.
• If all the segments (characters) are missing, check that the display contact surface on the
PCB is free from dirt/dust (Fig. 1). If necessary clean it.
Check the display elastomer for dirt/mechanical damage (Fig. 2) and replace it, if
necessary.
If the fault still remains, replace the display.
When the display is replaced the contrast should be checked. If it is necessary, change the
contrast with the service tests in the software, see chapter 12. Service functions in the
software.
Choose: 2. Service settings / 1.Contrast. Check the test pattern and change the contrast
with the arrow keys or numbers on the keyboard. The settings are stored with the key
"Yes".
• If some of the segments (characters) are missing replace the display.
When the display is replaced the contrast should be checked. If it is necessary, change the
contrast with the service tests in the software, see chapter 12 Service functions in the
software.
Choose: 2. Service settings / 1.Contrast. Check the test pattern and change the contrast
with the arrow keys or numbers on the keyboard. The settings are stored with the key
"Yes".
• If the contrast is bad try to change the contrast with the service tests in the software, see
chapter 12 Service functions in the software.
Choose: 2. Service settings / 1.Contrast. Check the test pattern and change the contrast
with the arrow keys or numbers on the keyboard. The settings are stored with the key
"Yes".
If the fault still remains replace the display and change the contrast with the service tests
in the software, if necessary.
• If the illumination is missing check if the illumination screw is loose or missing (Fig. 3).
If necessary, tighten or replace screw.
If the fault still remains replace the dome assembly.
• If the fault still remains handle the unit on according to the local company directives.

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Ericsson Mobile Communications AB
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Fig. 1 Fig. 2 Fig. 3

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6 Capacity/Charging Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• Insert a SIM card and switch the phone on. Wait until the phone gets Serv. Check the
standby time and talk time in the status menu using the volume button (Fig. 1).
• Connect a charger to the phone. When the phone starts to indicate charging (and shows
the message "Ericsson optimized charging" for a while), let the battery be charged for at
least another 15 minutes. Check the standby time and talk time in the status menu using
the volume button (Fig. 1), again. If the standby and talk time has increased, there are no
charging problems.
• If the phone shows "Alien battery" instead of "Ericsson optimized charging", open the
phone and check that the battery contact surface is free from oxidation and corrosion (Fig.
3). If necessary, clean the contact surface on the battery and the battery connector.
If the fault still remains replace the battery.
If the fault still remains put the old battery back in the phone and handle the unit on
according to the local company directives.
• If the phone does not indicate charging, check the system connector for dirt/mechanical
damage (Fig.2). If necessary, clean or replace the system connector.
Check that the battery contact surface is free from oxidation and corrosion (Fig. 3). If
necessary, clean the contact surface on battery and battery connector.
• If the phone does not indicate charging, does not start with On/Off - button or can not
reset hardware by 10 seconds pressed Off – button, check the system connector for
dirt/mechanical damage (Fig.2).
If necessary, clean system connector contact area or replace the system connector.
NOTE! Remove and refit the battery.
• If the fault still remains handle the unit on according to the local company directives.
Fig. 1 Fig. 2 Fig. 3

Repair Instruction,Electrical
4/00021-2/FEA 209 544/62 C
Ericsson Mobile Communications AB
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7 SIM Problems
• Make a general visual inspection for corrosion or oxidation from liquid damage. No
further action should be taken for a liquid damaged phone. Handle the unit on according
to the local company directives.
• Test the phone with a SIM card with known function.
If the display shows “Insert correct card” or “Wrong card”, handle the unit on according
to the local company directives.
If the display shows “Insert card” there is a SIM problem.
• Check the function of the SIM holder. If necessary, clean or replace the complete SIM
holder or just the SIM drawer.
• If the fault still remains handle the unit on according to the local company directives.