Ericsson R320S Manuale utente

Working Instruction, Standard

3/000 21-2/FEA 209 544/21 B Approved according to 1776-2/FEA 209 544

Working Instruction, Standard

Applicable for R320s, R320sc

Contents

1 Domeswitch........................................................................................................................2

2 Frame Assembly................................................................................................................2

2.1 Process Tools.......................................................................................................2

2.2 Instruction............................................................................................................3

3 Revision History.................................................................................................................3

Working Instruction, Standard

3/000 21-2/FEA 209 544/21 B 2(3)

1 Domeswitch

Important about soldering operation!

When any kind of soldering operations is done on the back of PCB or near the domeswitch

it must be removed and replaced with a new one

# Figure Instruction Note

1 Domeswitch replacement

fig.1

Remove the old domeswitch

with a pair of tweezers (fig.1).

3 Brush/Clean the board surface.

4 Take a new domeswitch

fig.2

Place the new domeswitch on

the board, use the guiding

holes and the connection point

for the EL-lamp for correct

positioning (fig.2).

Make sure that the

domeswitch is correct

assembled and that the

washer is right positioned.

2 Frame Assembly

2.1 Process Tools

• Hotmelt glue gun.

• Tweezers.

Working Instruction, Standard

3/000 21-2/FEA 209 544/21 B 3(3)

2.2 Instruction

• Dismount the phone as described in Mechanical Instructions 3/00021-1/FEA 209

544/21 (Disassembly).

# Figure Instruction Note

fig2.1

Remove the vibrator assembly

from the old frame. (fig 2.1).

2 Take a new frame assembly.

3 Mount the old vibrator

assembly the RF-gasket in the

frame.

fig2.1

Mount marking labels on the

three µBGA components

(fig2.2).

Don’t cover the grounding

surface on the board with

the labels.

5 Apply three glue spheres on

the paper labels with a

diameter about 3-5mm.

Exchange the elastomeric

connector etc. before you

start working with the glue.

• Mount the phone as described in Mechanical Instructions 3/00021-1/FEA 209 544/21

(Reassembly).

3 Revision History

Rev. Date Changes / Comments

B 2000-03-10 Chapter 2 added

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C Approved according to 1776-1/FEA 209 544

Trouble Shooting Guide, Mechanical

Applicable for R320s and R320sc

Contents

1 Appearance Problems.....................................................................................................2

2 Network Problems...........................................................................................................3

3 On/Off Problems.............................................................................................................4

4 Audio Problems...............................................................................................................5

5 Display/Illumination Problems......................................................................................6

6 Capacity/Charging Problems.........................................................................................7

7 SIM Problems..................................................................................................................8

8 Key Problems...................................................................................................................9

9 Alert Problems...............................................................................................................10

10 Data Communication Problems...................................................................................11

11 Software Problems........................................................................................................12

12 Revision History............................................................................................................13

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C 2(13)

1 Appearance Problems

• Check the general condition of the system connector (Fig.1) and the battery connector (Fig.

2) for corrosion and oxidation.

• No action should be taken for a liquid damaged telephone. Send the unit on according to the

local company directives.

• Check that the antenna is not damaged and that it fits properly. (Fig.3).

• Check that the SIM holder is working correctly (Fig.4).

• Check if the battery fits correctly. Change the battery or send the unit on according to the

local company directives.

• Check the rear and the front covers for cracks and that both ends fit correctly (Fig.5). If

necessary replace the front cover according to the working instruction or send the unit on

according to the local company directives.

Fig.1 Fig.2 Fig.3

Fig. 4 Fig. 5

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C 3(13)

2 Network Problems

• Insert a fully functional SIM card and switch ON the telephone. Check that there is signal

strength shown in the display (Fig.1). If necessary replace the antenna according to the

working instructions.

• Check the antenna connector for dirt (Fig.2). If necessary clean it.

• Make a general visual inspection for oxidation or corrosion from liquid damage. No action

should be taken for a liquid damaged telephone. Send the unit on according to the local

company directives.

• If the fault still remains send the unit on according to the local company directives.

Fig. 1 Fig.2

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C 4(13)

3 On/Off Problems

• Check that the battery’s contact surface is free from dust/dirt and mechanical damage (Fig.

1). If necessary clean it.

• Check the battery connector pogo contact on the board for dirt/mechanical damage (Fig. 2).

If necessary clean it.

• Make a general visual inspection for oxidation or corrosion from liquid damage. No action

should be taken for a liquid damaged telephones. Send the unit on according to the local

company directives.

• Check the keyboard and the dome switch for malfunction (Fig. 3). If necessery, replace the

keybord according to the working instruktions or send the unit on according to the local

company directives.

• Change the battery.

• Try to upgrade the telephone with the latest software.

• If the fault still remains, send the unit on according to the local company directives.

Fig. 1 Fig .2 Fig .3

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C 5(13)

4 Audio Problems

• Call a network-connected telephone and check if it is the microphone or the loudspeaker

that causes the audio problem.

• Check the loudspeaker for dirt/mechanical damage (Fig.1). If necessary clean it or replace it

according to the working instructions.

• Check the loudspeaker spring contact on the board for dirt/mechanical damage (Fig. 2). If

necessary clean it.

• Check the microphone and microphone rubber for mechanical damage (Fig. 3). If necessary

replace them. Also check the microphone contacts, if they are damaged send the unit on

according to the local company directives.

• Check the system connector for dirt/mechanical damage (Fig.4). If necessary clean it.

• Make a general visual inspection for corrosion or oxidation from liquid damages. No action

is taken for liquid damaged telephone. Send the unit on according to the local company

directives.

• If the fault still remains send the unit on according to the local company directives.

Fig.1 Fig.2 Fig.3

Fig.4

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C 6(13)

5 Display/Illumination Problems

• Switch ON the telephone and check the display. If all the segments (characters) are missing,

check that the display contact surface on the board is free from dirt/ dust (Fig.1). If

necessary clean it. Check the display elastomer for dirt/mechanical damage (Fig 2). If

necessary replace it according to the working instructions. If the fault still remains, replace

the display according to the working instructions.

• If some of the segments (characters) are missing, or the contrast is bad, replace the display

according to the working instructions.

• Make a general visual inspection for oxidation or corrosion from liquid damage. No action

is taken for liquid damaged telephone. Send the unit on according to the local company

directives.

• If the fault still remains send the unit on according to the local company directives.

Fig.1 Fig.2

Trouble Shooting Guide, Mechanical

4/00021-1/FEA 209 544/21 C 7(13)

6 Capacity/Charging Problems

• Test the telephone with a new fullcharged battery. If necessary replace the battery.

• Check the battery’s condition and the battery’s contact surface for oxidation or corrosion

(Fig 1). If necessary replace the battery.

• Check the battery release button for dirt/mechanical damage and that the elasticity is good

(Fig 2). If necessary replace it according to the working instructions.

• Check that the battery connector is free form dirt/mechanical damage and that the battery

connector pins are elastic (Fig.3). If necessary clean it.

• Check the system connector for dirt/mechanical damage (Fig.4). If necessary clean it.

• Make a general visual inspection for oxidation or corrosion from liquid damages. No action

is taken for liquid damaged telephone. Send the unit on according to the local company

directives.

• If the fault still remains send the unit on according to the local company directives.

Fig.1 Fig.2 Fig.3

Fig.4

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