' Power On ' Does Not Work - Samsung GT-N8000 Servise Manual

8-3-1. Power On

' Power On ' does not work

Check "Power on" by power
cable with jig-on
Check the Battery Voltage
is more than 3.5V
Check the ZD500
Voltage.(When you press the
power key, ZD500 Voltage
have to same V_BATT
Voltage)
Check U700(PMIC) and Power
on voltage(C760 ≥ 1.0V, C758 ≥
1.1V, C757 ≥ 1.0V, C755 ≥ 1.0V,
C754 ≥ 1.2V, C753 ≥ 1.35V,
C752 ≥ 2.0V)
Check the Clock at
OSC700(C705) that frequency
is 32K
check the initial operation
END
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Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Check the 30pin to 50pin FPCB(SLC500),
Wrong assembly or Wrong connection.
No Charge the Battery
(Battery power is low)
Change the power key FPCB
No
(GH59-11713A)
(Battery power is low)
No If the output voltage is not satisfied with
normal
condition, Change the U700.
No
Check the clock generation circuit
(related to OSC700)
8-5
Level 3 Repair