5. Flow chart of trouble shooting
5-1 Power ON
Flow chart of trouble shooting
5-1
’POWER ON’ does not work
Charge the Battery
Check the Battery Voltage
is more than 3.2V
No
Yes
Yes
Check U100 and the path from +VBATT
to M100
The node
between D100 and M100 = 3V
No
Yes
U106 pin 1,4,10 > 3.2V
Check the circuit related to U106
No
END
Yes
Check the initial operation
U102, U105 pin3 = 3V ?
Check U102, U105 and related circuit
No
Check for the clock signal at R646
Check the clock generation circuit
(related to U613 and Q604)
No
Yes
Yes
Summary of Contents for SGH-N288
Page 2: ...Samsung Electronics Co Ltd Printed in Korea 05 2001 Rev 5 1 GH68 02032A ELECTRONICS ...
Page 12: ...Exploded Views and Parts List 1 9 1 10 Desk Top Charger DESK TOP CHARGER GH44 00186B ...
Page 13: ...PCB Diagrams 2 1 2 PCB Diagrams 2 1 Main Top ...