Samsung SGH-X430 Service Manual page 25

7 . S G H - X 4 3 0 Fl o w
2. Initial
Initialization Failure
The pin #9 of U 300 = 1.8V
the pin #11 of U300 "‰2.825V
Is the pin #19 of U 300
There is 32.768kH z wave
form s at the C 414 and
The pin #22 of U 300 is
The V oltage is " H igh"at
L C Ddisplay is O .K
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C h a r t o f T r o u b l e s h o o t i n g
Y es
and
?
Y es
" L ow -> H igh" ?
Y es
C 416
Y es
" H igh"
Y es
the C 307
Y es
Y es
Sound is O .K
Y es
E N D
SAMSUNG Proprietary-Contents may change without notice
N o
(If it has som e problem , it has to be
N o
(If it has som e problem , it has to be
N o
C heck the U 400
N o
C heck the U 300
N o
C heck the U 300
N o
C heck the L C DPart
N o
C heck the A udio Part
7- 2
C heck the U 300
replaced.)
C heck the U 300
replaced.)