Samsung 2493HM Service Manual page 33

7-2. Schematic Diagram
7-2-1 Analog, Function, Sound input, Speaker out Block
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Do Not Place
1
A0
2
A1
3
A2
4
TP_DDCA_GND
VSS
IC100
24LC02B-E/SN
DSUB_INPUT
+5V_DDC_A
MGND2
R_GND
6 pin1
1 pin11
11 G_GND
pin2
7
2 pin12
B_GND
12
8 pin3
3 pin13
pin9
13
9 pin4
pin14
4
14 pin10
10 pin5
5 pin15
15
MGND1
SBFR151-D02-1-NP
CN101
CN702
12507WR-05L(P)
MGND1
MGND2
+5V_DDC
8 R101 R164
VCC
7 1 TP_DDCA_WP
10Kohm 10Kohm
WP DDC_WP
TP_DDCA_SCL
6 1 XREF
SCL
1 TP_DDCA_SDA
5
SDA
C100
100nF
16V
R113 R114
100ohm 100ohm
R115
0ohm
R118 0ohm
D100
D101
XREF
R_GND
XREF
G_GND
XREF
B_GND
D115
D103 D104 D113 D114
UDZS5.6B-TE-17,5.6V
BZX84C5V6LT1,5.6V
SPEAKER OUT
SPK_R+
SPK_R-
SPK_L+
SPK_L-
FUNCTION
+3.3V_LIVE
R718 R714 R713
0ohm 3.3Kohm
3.3Kohm
1/10W 1/10W
1/10W
KEY2 1/10W 100ohm
1
2
KEY1
3 1/10W 100ohm
U654
4
C755 C754 C753
U653
5
10nF 10nF 100nF
1
50V 50V 25V
U655
D734
D733
MMBD4148SE MMBD4148SE
MMBD4148SE
R106
0ohm
R105 1Kohm
R108 1Kohm
R109
0ohm
R112
R111
10Kohm
2.7Kohm
C102
C101
100pF
22pF
R117 C103 47nF
BD101 CB1608GA180T 22
XREF
DDC_SDA_A
C104 47nF
BD102 CB1608GA180T R120 22
XREF
DDC_SCL_A
C105
BD103 CB1608GA180T R121 22 47nF
R122 R123 R124
+3.3V_LIVE
75ohm 75ohm 75ohm
XREF
B_GND
XREF
G_GND
R126 XREF
R_GND
100ohm
D102
+3.3V_LIVE
C106 47nF
R127 22
XREF
R_GND
47nF
R128 22 C107
XREF
G_GND
47nF
R129 C108
22
XREF
B_GND
D118
+5V_DDC_A +5V_DDC_D +5V_DDC_H +5V_MICOM
C110
C109
1uF
1uF
D116 D117
BAT54C BAT54C
CN503
SMAW250-04 WHT
1
2
3
4
R716
KEY2
XREF
R717
KEY1
XREF
LED_GREEN
D732
FUNCTION
XREF
PC_VSYNC_IN
XREF
PC_HSYNC_IN
XREF
RED_IN
XREF
GREEN_IN +5V_DDC
XREF
BLUE_IN
R125
10Kohm
XREF
CHK_DSUB R345
1Kohm
DDC_WP
C
B
VD
R346
XREF
Q310 E
R_GND_S SPEC_STRESS_1
2SC2412K-Q
VD
XREF
G_GND_S R311
1/10W
VD
XREF
4.7Kohm
B_GND_S
+5V_DDC
DSUB_INPUT
PC_SOUND_INPUT
L504 3.3UH
R510 10Kohm
L505 3.3UH
1 R524 10Kohm
3
2
1
R511
4
5 10Kohm
C510
C518
2 D511 D512 1/10W
UEJ-CV-022
1.5nF 1.5nF
CN500 CDS3C05GTA
50V
50V
1
7. Schematic Diagram
1/10W
DDC_CTL
4.7Kohm XREF
XREF
PC_ALIN
XREF
PC_ARIN
R512
10Kohm
1/10W
Sound input
7-3