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SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-7
This Document can not be used without Samsung's authorization
8-3-2. Initial
The pin #2,3 of U303 =
swing properly 1.8V and 0V?
The pin #9,10 of U303 =
swing properly 2.8V and 0V?
Initial Failure
Check the U303 and UCP500
(if it has some problem, it is to be replaced.)
Yes
No
Test point 'AP_PS_HOLD'
and 'AP_N_RST_IN'(R603)
=
"Low
→
High" ?
Yes
No
Check the U602
(if it has some problem, it is to be replaced.)
There is 32.768kHz wave
forms at the C264
,
C269,
and pin #1,2 of U304
Yes
No
Check the OSC600 and U304
The voltage is "High" at
the C617, C618, C621,
C629
Check the U602
LCD display is O.K
No
Yes
Yes
Check the LCD part
No
Sound is O.K
Yes
No
Check the Audio part
END
Yes
There is 24MHz wave
forms at the C521 and
C522
No
Check the OSC500
Yes
Содержание Wave GT-S8500
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