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  Trouble Shooting Guide, Electrical 
 
 
 
Trouble Shooting Guide T600, Electrical 
by Toko (toko@gsm-free.org)
 
Contents 
1 Explanations....................................................................................................................2 
1.1 Service Test menu .............................................................................................2 
2 Network Problems .................................................................................................
                    
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                                 Trouble Shooting Guide, Electrical      1 Explanations  Component placing document is not available.    1.1 Service Test menu  In the software of the phone there is a built in service function that allows testing some of the  functions of the phone.    They are as follows:  1. Service info  2. Service settings  3. Service tests    To use the function press the following combination, using the navigation button and the  keyboard:  >*<<*<*             4/00021-2/FEA 209 544/74 A 2(12)   S
                    
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                                 Trouble Shooting Guide, Electrical    2 Network Problems  • Check that the Antenna connector internal is properly fitting and undamaged (Fig. 2-1).  • If necessary replace the Antenna connector internal.  • Check that radiator inside Antenna is not mechanical damaged, bended or oxidised. If  needed, replace the antenna assy (Fig. 2-2).    If the fault still remains, handle the unit according to local directives.      Figure 2-1      Figure 2-2         4/00021-2/FEA 209 544/74 A 3(12)  
                    
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                                 Trouble Shooting Guide, Electrical    3 On/Off problems  • Check the keyboard for malfunction. If necessary clean the keyboard pads from circuit  board and/or replace the keyboard according to the Working Instructions, Mechanical.  • Check that the System Connector (Fig. 3-1) not is incorrectly soldered, mechanically  damaged, dirty or oxidised. If necessary replace it.    If the fault still remains, handle the unit according to local directives.      Figure 3-1  4/00021-2/FEA 209 544/7
                    
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                                 Trouble Shooting Guide, Electrical    4 Display/Illumination Problems  • Make visual check to ensure that the elastomer is properly in place in its housing in  Display assy (Fig. 4-1). Also clean the Display pads from the circuit board if necessary.  • Replace the display according to the Working Instruction, Mechanical.  • In Display/Illumination problems make visual check to ensure that the White colour  display LEDs (4 pieces) (Fig. 4-2) and Blue colour keymat LEDs (6 pieces) (Fig. 4
                    
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                                 Trouble Shooting Guide, Electrical      Figure 4-3  4/00021-2/FEA 209 544/74 A 6(12)   Sony Ericsson Mobile Communications AB                                                                                                                                                                                                                                                                                                                                                                             
                    
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                                 Trouble Shooting Guide, Electrical    5 Capacity/Charging Problems  • Check that the System Connector (Fig. 5-1) is not incorrectly soldered, mechanically  damaged, dirty or oxidised. If necessary replace it.  • Check that the Battery Connector (Fig. 5-2) is not incorrectly soldered, mechanically  damaged, dirty or oxidised. If necessary replace it by BGA replacement machine.    If the fault still remains, handle the unit according to local directives.      Figure 5-1       Figure 5-2  
                    
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                                 Trouble Shooting Guide, Electrical    6 Key Problems  • Use the Service Test menu, choose Service tests/Keyboard.  • Make sure if it is the Keyboard that causes the problem. Check keyboard pads and key  domes for damage, dust, dirt, moisture and oxidation. Clean if needed.  • If it is the Keyboard that causes the problem, replace the Keyboard.    6.1 Volume Switch does not work  • Check Volume Switch soldering.  • If Volume Switch that causes the problem, replace the Volume Switch (Fig.
                    
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                                 Trouble Shooting Guide, Electrical    7 Alert Problems    7.1 Buzzer   • Use the Service Test menu, choose Buzzer.  • Activate the buzzer using the keymat.  • If it sounds low or distorted open the phone and inspect the Buzzer (Fig. 7-1) and the  buzzer gasket in front cover.  • Check the Buzzer (Fig. 7-1) for faulty soldering joints.  • If necessary re-solder or change the Buzzer. If the problem is in the buzzer gasket,  replace the Front cover.    If the fault still remains, handle th
                    
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                                 Trouble Shooting Guide, Electrical        Figure 7-2      Figure 7-3         4/00021-2/FEA 209 544/74 A 10(12)   Sony Ericsson Mobile Communications AB                                                                                                                                                                                                                                                                                                                                                   
                    
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                                 Trouble Shooting Guide, Electrical    8 Software Problems  • If there are problems with the response of the keyboard commands and/or spelling  errors in the menu, that are not related to mechanical damage, make a master reset and  flash the phone with the latest soft ware from EMMA II.  • Checking the software revision can be done in the Service info, see Test Instruction,  Electrical. Choose: Service info / SW information. The Software revision and date are  shown in the display.    If
                    
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                                 Trouble Shooting Guide, Electrical    10 Revision History  Rev. Date Changes / Comments  PA1 2002-05-21 First draft  PA2 2002-06-05 Side Switch  Volume Switch, pictures changed  PA3 2002-07-18 - Chapter title changed from Repair Instruction,  Electrical to Trouble Shooting Guide, Electrical,   - .. according to the local company directives changed  to .. according to local directives  - chapter 9 SIM problem text corrected  - fig. 2-1, 3-1, 5-1, 5-2, 9-1 changed  - fig. 4-2, 4-3 ad