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2-1-8. Speaker Part
Speaker does not work
Check the connection
status spk to CN101
YES
Check the
pin4 of U201 = 'LOW'
YES
#4,6,16,18 of
Check
U104
YES
Is speaker ok?
YES
END
C201
CODEC_OUT_L
C203
CODEC_AGND_L
SPK_L+
SPK_L-
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SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams
NO
NO
NO
NO
V_IN
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
SAMSUNG Proprietary-Contents may change without notice
Resolder and check the board
to board connector
Check UCD203
Check
Change Speaker
U104
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
2-19
U104
SOUND_EN
C200
CODEC_OUT_R
C202
CODEC_AGND_R
SPK_R+
SPK_R-
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