Samsung T220HD - No Sound

4-17
4. Troubleshooting
4-7-1. Circuit diagrams and waveforms (No Sound) when no screen is
displayed on the monitor
21
R5009
21R5013_DE
21R5015_DE
21R5014_DE
8
6 4
2
7 5
3 1
RA5030
8 6
4 2
7 5 3 1
RA5029
21C5077
8 6 4 2
7 5 3 1
RA5028
2
1
R5067
21R5074
21R5081
21C5084
21C5079
21C5101
21R5068
21C5100
21R5076
2 1
C5088
21C5083 21C5082
21
C5078
8
6
4
2
7
5
3
1
RA5033_DE
8
6
4
2
7
5
3
1
RA5032
21
C5086
21
C5087
2
1C5081
99 98 97
96 95 94 93 92
91 90 89 88 87 86
85 84 83
82 81 80 79 78 77 76 75 74
73
72 71 70 69 68 67 66 65
64
63
62
61
60
59
58
57
119 118
117 116
115 114
113 112 111 110 109 108
107 106
105 104
103 102 101 100
21C5091
2
1
R5065
21C5094
21R5078
21
C5089
21C5085
21C5080
SW_POWER
IDENT_HP
IDENT_DVI
IDENT_HDMI2
SEL1_HDMI
1/16W
10KOHM
100OHM 100OHM
100OHM
100OHM 100OHM
50V2.2NF
100OHM
100NF 25V
1UF 10V
4.7UF 10V
10KOHM
1/16W
10V4.7UF
4.7UF 10V
10V4.7UF
10V10UF
1/10W
22KOHM
50V2.2NF
100OHM
2.2NF 50V
4.7UF 10V 4.7UF 10V
22KOHM 1/10W
1/10W22KOHM
100OHM
100OHM
4.7UF 10V
A3.3V
A3.3V_AU
FGND
VDDC
A3.3V_VDDP
10V4.7UF
4.7UF 10V
100NF 25V
1/10W22KOHM
A3.3V_ADC
FGND
15
14
13
12
11
10
9
8 7 6
5
4
50V
2.2NF
FGND
A3.3V_SIF
1/10W0OHM
SC_SR_IN SC_SL_IN
MDATA<4>
SC_SR_OUT2 SC_SL_OUT2
COMP_SR_IN COMP_SL_IN
DTV_AUDIO_R
DTV_AUDIO_L
PC_SR_IN
MDATA<9> MDATA<6> MDATA<5> MDATA<7> MDATA<8> MDATA<10> MDATA<11> MDATA<12> MDATA<13> MDATA<14> MDATA<15>
DQS1
PC_SL_IN
MDATA(0:15)
IDENT_PC
IDENT_SIDE_SVHS
IDENT_COMP
IDENT_HDMI1
HP_OUT_L1 HP_OUT_R1
MDATA(0:15)
AVDD_SIF
SIF0P
GND
CVBSOUT0
CVBSOUT1
AVDD_ADC
VCOM0
SIF1P
GND
AUVREADN AUVRADP AUVREF AVDD_AU AUL0 AUR0 AUL1 AUR1
AUCOM
AUL2
AUR2
AUL3 AUR3 AUMONO AUOUTL3 AUOUTR3 AUOUTL2 AUOUTR2 AUOUTL1
AUOUTR1
AUOUTL0
AUOUTR0
GPIOF[0] GPIOF[1] GPIOF[2] GPIOF[3] GPIOF[4] GPIOF[5] GPIOF[6] GPIOF[7] GPIOF[9] VDDP
GND
VDDC
DQS[1]
MDATA[15] MDATA[14] GND MDATA[13] MDATA[12] VDDM MDATA[11] MDATA[10]
MDATA[9]
MDATA[8]
GND
VDDM MDATA[7] MDATA[6] MDATA[5] MDATA[4] VDDM SIFM GPIOF[8]
POP NOISE SOLUTION
2
1
D2004_DE
2 1
R2074
21
R2021
21
R2020
1
TP2001
3
2
1
IC2003
2
1
D2022
2 1
D2023
3
2
1
Q20042 1
R2028
21
R2069
21
R2027
21
R2073_DE
3
2
1
Q2003
2 1
R2070
21
R2025
21
R2024
3
2
1
Q2001
3
2
1
Q2002
5.6V
VLZ5V6B
5.6V
VLZ5V6B
S_AMP_MUTE
1KOHM
1/10W
A3.3V
KTC3875S-Y
FGND
KTC3875S-Y
22KOHM
1/10W
1/10W22KOHM
4.7KOHM
1/10W
KTC3875S-Y
FGND
A3.3V
0OHM 1/10W
1/10W10KOHM
4.7KOHM
1/10W
10KOHM
1/10W
KTC3875S-Y
FGND
A13VA3.3V
LL4148
75V
RT9818C-42PV
FGND
560OHM
1/10W
AMP_MUTE
SC_SR_OUT
SC_SL_OUT
300OHM
/RESET,RESET
VDD
GND
E
B
C
E
B
C
E
B
C
E
B
C
CLOSE TO IC
CHASSIS GND
CLOSE TO IC
CLOSE TO IC
SPK_OUT
SPK_R
SPK_L
CHASSIS GND
CLOSE TO IC
CLOSE TO IC
CLOSE TO IC
CLOSE TO IC
1
SPK_R+
1
SPK_R-
1
SPK_L+
1
SPK_L-
4
3
2
1
CN2001
21
BD2006
21
BD2005
21
C2042
21
R2015
21
R2014
21
C2018
21
C2019
21
R2016
2 1
C2015
2 1
C2016
2 1
C2014
21
R2017
2 1
C2017
21
C2013
21
C2012
2 1
C2011
2 1
D2006
21
C2008
2 1
C2004
2 1
C2003
21
BD2001
2 1 C2005
2 1
D2007
21
C2002
21
R2003
4 3 2
1
L2001
21
C2001
21
R2002
21
C2039
21
R2006
2 1
C2076
2
1
C2078
2 1
R2005
21
C2041
21
BD2003
21
C2079
2 1
C2080
21
R2001
2 1
C2075
2
1
C2077
2 1
R2004
21
C2040
21
BD2002
21
C2006
21
C2007
2 1
C2009
2
1
C2010
2 1
C2038
2 1
BD2004
2
1
D2008
21
C2036
21
C2035
21
R2008
21
C2034
21
R2007
2 1
C2029
2 1
R2010
2 1
C2031
2 1
C2030
2 1
R2009
21
BD2008
21
C2027
21
C2028
21
BD2007
2 1
C2082
21
C2083
2
1
C2081
21
C2043
21
C2023
2 1
D2009
MGND1
9
8
7
6
56 55 54 53 52 51
50
5
49 48 47 46 45 44
43
42
41
40
4 39
38
37
36
35
34
33
32
31
30
3
29
28 27 26
25
24
23
22
21
20
2
19
18
17 16 15
14
13
12
11
10
1
IC2005
21
C2024
2 1
R2013
21
C2025
21
R2012
21
C2026
21
R2011
21
C2037
4 3 2
1
L2002
2
1
C2033
2 1
C2032
100NF 50V
50V470NF
DDA-0808 100NF 25V
4.7OHM 1/10W1NF 50V4.7OHM 1/10W1NF 50V
1/10W0OHM
50V22NF
NTP-3000
75V
LL4148
10V1UF
25V100NF
33PF 50V
33PF 50V
B1.8V_AMP
25V
100NF
BEAD_CHIP
1NF 50V50V1NF
BEAD_CHIP
4.7KOHM
1/10W
100NF 50V
100NF 50V
4.7KOHM
1/10W
100NF 50V
4.7OHM
1/10W
1NF 50V
1/10W
4.7OHM
1NF 50V
25V100NF
75V
LL4148
BEAD_CHIP
220UF
35V
22NF 50V
10V1UF
1UF 10V
22NF 50V
BEAD_CHIP
50V1NF
1/10W
4.7KOHM
50V100NF 50V100NF
4.7OHM 1/10W
50V470NF
50V1NF
BEAD_CHIP
50V1NF
50V100NF
100NF 50V
B12VS
1/10W4.7OHM1NF 50V
4.7OHM 1/10W1NF 50V
DDA-0808
1/10W
4.7OHM50V1NF
75V
LL4148
25V100NF
BEAD_CHIP
B12VS
35V
220UF
100NF 25V
B3.3VD
22NF 50V
75V
LL4148
10V1UF
100PF 50V
25V100NF
100OHM 1/10W
25V100NF
AVDD_PLL
10UF 10V
DVDD_PLL
1/10W3.3KOHM
100PF 50V
1NF 50V
1/10W100OHM
1KOHM 1/10W
B1.8V_AMP
AVDD_PLL
10UF 10V
DVDD_PLL
BEAD_CHIP
BEAD_CHIP
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
FGND
CN_S_004
AMP_MUTE
AUSD
AUWS
AUSCK
AMP_RESET
AUMCKO
SDA1
SCL1
SPK_R
SPK_R_
SPK_L
SPK_L_
SPK_L
SPK_L_
SPK_R
SPK_R_
4.7KOHM
1/10W
25V
100NF
10UF10V
CLK_
CLK_
VSS_
AD
/RESET
VDR1A
BST1A
PGND1A PGND1A
OUT1A OUT1A
PVDD1A PVDD1A PVDD1B PVDD1B
OUT1B
OUT1B
PGND1B
PGND1B
BST1B
VDR1B
NC
VDR2A
BST2A
PGND2A
PGND2A
OUT2A
OUT2A
PVDD2A
PVDD2A
PVDD2B
PVDD2B
OUT2B
OUT2B
PGND2B
PGND2B BST2B VDR2B SOFT_RESET_2 PWM_MASK_2 AUX_PWM3A AUX_PWM3B SCL SDA BCK WCK SDATA DVDD
DVSS
TEST0
DVDDPLL
AVDDPLL
LFM
AGNDPLL
DGNDPLL
VDD_