Samsung Anycall SGH-N700 서비스 매뉴얼 - 페이지 23

{카테고리_이름} Samsung Anycall SGH-N700에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Samsung Anycall SGH-N700 36 페이지. Samsung mobile phone service manual

7 . S G H - N 7 0 0 Fl o w

1. Power On

The set is not ' Power O n '

C heck the current consum ption

C urrent consum ption

>=100m A

C heck the +V BA TT V oltage

V oltage >= 3.3V

C heck the pin of U 101

pin#J 12 of U 101 >= 2.8V

pin#A 13 of U 101 = 2.8V

C heck the clock signal

at pin#R 6

Freq = 13M H z

C heck the initial operation

C h a r t o f T r o u b l e s h o o t i n g

Y es

E N D

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N o

D ownload again

N o

C harge the Battery

N o

C heck U 101 and C 112

N o

pin#G 11 = 1.8V

N o

C heck the clock generation circuit

(related to O SC 401)

7- 1

C heck U 101 and C 115