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Level 3 Repair
8-11
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8-3-2. Initial
Initial Failure
END
The pin #1,2 of U301 =
swing properly 1.8V and 0V?
the pin #11,12 of U301 =
swing properly 2.8V and 0V?
Check the U301 and UCP600
(if it has some problem, it is to be replaced)
No
Yes
Yes
Check 12 Mhz signal
C634,C636
Check the OSC600
(if it has some problem, it is to be replaced)
No
Yes
Yes
TP 'AP_PS_HOLD'
and 'AP_N_RST_IN'(R708)=
"Low
→
High" ?
Check the U700
(if it has some problem, it is to be replaced)
No
Yes
Check 32.768 KHz signal
C716, C737
and pin #1,2 of OSC300
Check the OSC300 and OSC700
(if it has some problem, it is to be replaced)
No
Yes
LCD display is O.K
Yes
Check the U700
(if it has some problem, it is to be replaced)
No
Yes
Check the voltage
C718,C719
C722,C731
Check the LCD
No
Sound is O.K
Check the Audio
No
Содержание GT-I5800
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