Trouble Shooting Guide, Electrical
Trouble Shooting Guide, Electrical
Applicable for W600i, W600c
Contents
General.............................................................................................................................2
1
2
Repair Actions for Manual Test Failures.....................................................................3
2.1
Power On / Off ..................................................................................................3
2.2
Software Flash...................................................................................................3
2.3
Charging............................................................................................................3
2.4
Hands-Free connection (PHF)...........................................................................3
2.5
SIM....................................................................................................................3
2.6
Charging indicator (RED LED).........................................................................3
2.7
Display...............................................................................................................3
2.8
Illumination (Backlight or LEDs) .....................................................................4
2.9
Upper (rocker) Keypad Keys.............................................................................4
2.10
Lower (main) Keypad Keys ..............................................................................4
2.11
Volume Up Key.................................................................................................4
2.12
Volume Down Key............................................................................................4
2.13
Camera Key.......................................................................................................4
2.14
Lock key............................................................................................................4
2.15
On/Off key.........................................................................................................4
2.16
Gaming (A and B) Keys....................................................................................4
2.17
Media Player Key..............................................................................................4
2.18
Vibrator .............................................................................................................4
2.19
Earphone (Speaker)...........................................................................................4
2.20
Polyphonic RIGHT (speaker A) (speaker phone) .............................................4
2.21
Polyphonic LEFT (speaker B) ...........................................................................5
2.22
Polyphonic BOTH.............................................................................................5
2.23
Microphone .......................................................................................................5
2.24
Real Time Clock................................................................................................5
2.25
Camera...............................................................................................................5
2.26
Camera Flash.....................................................................................................5
2.27
Flip Sensor.........................................................................................................5
2.28
IR.......................................................................................................................5
2.29
Bluetooth...........................................................................................................5
2.30
FM Radio...........................................................................................................5
3
Repair Actions for Go/No Go Test Failures .................................................................5
4
Repair Actions for Calibration Routine Failures.........................................................6
4.1
GSM 850, 900, 1800, or 1900...........................................................................6
4.2
EDGE 850, 900, 1800, or 1900.........................................................................6
5
Revision History..............................................................................................................7
4/000 21-2/FEA 209 544/594 D
©
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical
1 General
The purpose of this document is to indicate the electrical level repair actions associated with the different
failure symptoms.
For symptoms that have multiple repair actions, the repair actions are listed in order of their probability of
creating a successful repair. The first action has the highest probability, and subsequent actions have lower
probabilities. The intention is for the repair technician to implement the first repair action and then retest the
phone. If the phone continues to fail the same test, then the technician should continue to the second repair
action. If the phone continues to fail the same test after all of the repair actions are exhausted, then the
phone will be considered not reparable at this level.
This document should be used only after the actions from the Mechanical Trouble Shooting Guide have
been exhausted for the specific symptom.
Voltage, current, and resistance information is provided for some symptoms to enable faster repairs.
Perform current measurements using a dummy battery and power supply with digital current display. The
phone should be fully assembled. Perform voltage and resistance measurements with a multimeter.
Purchasing this equipment and performing these measurements is optional but recommended.
4/000 21-2/FEA 209 544/594 D
©
Sony Ericsson Mobile Communications AB
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Trouble Shooting Guide, Electrical
2 Repair Actions for Manual Test Failures
Failure Failure Symptom
2.1 Power On / Off
2.2 Software Flash
2.3 Charging
2.4 Hands-Free connection (PHF)
2.5 SIM
2.6 Charging indicator (RED LED)
2.7 Display
Current draw when powered off
Current draw greater than 300 mAmps
Hangs at gray display. Will not start
flashing • B300
Hangs at gray display. Will start
flashing, but fails after some percentage • No Repair Action
Some current draw when pressing power
key, but current returns to 0 when power
key is released
Powers on automatically when battery is
installed
Powers On BUT will not power off
Will not power on AND will not flash
Powers off at random and hangs at gray
display
Other symptoms
Phone powers on instead of starting
flash • N602, V604, N800
Other symptoms
Charging from power outlet
Charging from computer via USB
Measure V807 from pin 1 to pin 3 with
positive lead on pin 1
VDC should equal 0.20 to 0.23.
Repair Action
• V809
• N1401
• N1400
• N702
• N1400
• L800
• V404
• V400
• N1301
• N1303
• Remove C55 from the FPC. Do
not replace it.
• Replace X800 if damaged
• Replace X2490 if damaged
• Replace X2590 if damaged
• N1200 (remove R1205. Do not
replace it.)
• N702
• No Repair Action
• V802, V805
• N702
• If VDC is outside of range, then
replace V807
• N800
• N700
• N702, N1100
• Replace X701 if damaged
• N1401
• N702
• Replace X2490 if damaged
• V402
• Replace X2590 if damaged
4/000 21-2/FEA 209 544/594 D
©
Sony Ericsson Mobile Communications AB
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