Test The Switch S2502; Test The Switches S2503 & S2507 - Sony Ericsson K800 Electrical Repair Manual

Test the Switch S2502 Volume down.
Place the phone as picture joystick down, system connector at right.
Connect the Black probe onto MP 120.
Connect the Red probe onto MP 119.
1.4-OL Volt
No key pressed
Volt
S2502 pressed 0
If the measurement are equal to the reference sheet,
The switch S2502 is working properly.
Replace S2502 if the measurements are not equal to the reference sheet.
TROUBLESHOOTER Test the Switches S2502, S2503 & S2507
Test the Switch S2503 Volume Up.
Connect the Black probe onto MP 117.
Connect the Red probe onto MP 116.
No key pressed
S2503 pressed
If the measurement are equal to the reference sheet,
The switch S2503 is working properly.
Replace S2503 if the measurements are not equal to the reference sheet.
Test the Switch S2507 Music.
Connect the Black probe onto MP 122.
Connect the Red probe onto MP 121.
No key pressed
S2507 pressed
If the measurement are equal to the reference sheet,
The switch S2507 is working properly.
Replace S2507 if the measurements are not equal to the reference sheet.
1.4-OL Volt
Volt
0
1.4-OL Volt
Volt
0
SEMC Electrical Repair Manual
K800 - K810
1202-3085 rev. 2 63 (121)