Table of Contents
Advertisement
2-1-10. ALERT TONE
Abnormal Alert tone
Alert tone-On in "Profile" Menu and
then Check the Volume-Bar
Check the Solder-Status
of 2 Speaker. wrong
solder?
NO
Play a MP3(Ring
Tone) and then
Check the #A1/A3
of U104
NO
Alert is not ok?
END
C201
CODEC_OUT_L
C203
CODEC_AGND_L
SPK_L+
SPK_L-
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams
YES
Resoder or Change the
YES
Replace U104
YES
*Reference the "2-1-8"
V_IN
U104
1
EN_L
R201
24
VIPL
R203
22
VIML
23
VREFL
18
VOPL
16
VOML
3
VDD
7
VDD
9
VDD
15
VDD
19
VDD
21
VDD
C204
C205
2-25
Speaker(s)
13
EN_R
R214
12
VIPR
R215
10
VIMR
11
VREFR
6
VOPR
4
VOMR
2
VSS
5
VSS
8
VSS
14
VSS
17
VSS
20
VSS
25
GND
26
NC
27
NC
C206
SOUND_EN
C200
CODEC_OUT_R
C202
CODEC_AGND_R
SPK_R+
SPK_R-
Advertisement
Table of Contents
