Samsung 2493HM Service Manual page 35

7-2-3 Scaler, Memory Block
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+5V_PANEL
R360 R347
300ohm 300ohm
R348
1Kohm
R361 PWM_DIM
300ohm
XREF
C
B Q301
C388
E 470nF
R349 SPEC_STRESS_1 2SC2412K-Q
4.7Kohm
R371
10Kohm
1/10W
+3.3V_LIVE
2493HM : DELETE
+5V_PANEL
U2541 U2542
300ohm 300ohm
U2543
1Kohm A_DIM
U2544
300ohm
XREF
C
B Q302 C316
E 470nF
U2545 SPEC_STRESS_1 2SC2412K-Q
2.2Kohm
+5V_MICOM
R388 2.2Kohm
1/10W
C302
IC304
10uF
KIA7042AF-RTF 10V
1 GND 3
IN OUT
GND
R387
2
10Kohm
1/10W
RXC-
RXC+
RX0-
RX0+
RX1-
RX1+
RX2-
RX2+
AVDD_DVI
R376
390ohm
R340 0ohm
DDC_SDA_DOUT
R341 0ohm 1/10W
DDC_SCL_DOUT
1/10W
PC_HSYNC_IN
PC_VSYNC_IN
C349 100nF
C350 100nF
C351 100nF
C352 100nF
C353 100nF
BLUE_IN
B_GND_S
SOG_PC
GREEN_IN
G_GND_S
RED_IN
R_GND_S
AVDD_ADC
AVDD_SIF
R9022
22ohm
1/10W
LED_GREEN
XREF
R370 C360
10Kohm 10uF
1/10W 10V
+5V_PANEL
1 1 1 1 1 1 1 1 1 1 1 1 1
R362 R363
300ohm 300ohm
R366
BRT_CTL
1Kohm
R364
R372
300ohm
2.2Kohm
1/10W
C Q300
B C386
2SC2412K-Q
E 470nF
R365 SPEC_STRESS_1
4.7Kohm
3 1 3 1 5 3 1 3
7 5 7 5 7 7 5
+3.3V_LIVE
8 6 4 2 8 6 4 2 8 6 4 2 8 6 4
C304 C305
22pF X300 22pF R306
4.7Kohm
1/10W
Q0 Q1
HC-49/S-SMD(14.31818MHZ)
R323
4.7Kohm
R391 R392
1/10W
R396
HDCP_RESETN
C309
100nF
16V
1
RXCKN
2
RXCKP
3
GND
4
RX0N
5
RX0P
6
AVDD_33
7
RX1N
8
RX1P
9
GND
10
RX2N
11
RX2P
12
AVDD_33
13
REXT
14
DDCD_DA
15
DDCD_CK
16
HSYNC1
17
VSYNC1
18
RMID
19
VCLAMP
20
REFP
21 IC300
REFM
22
BIN1P
23
BIN1M
24
SOGIN1
25
GIN1P
26
GIN1M
27
RIN1P
28
RIN1M
29
BIN0M
30
BIN0P
31
GIN0M
32
GIN0P
33
SOGIN0
34 MGND1
RIN0M
35
RIN0P
36
AVDD_33
37
GND
38
HSYNC0
MST97889CLD-LF
39
VSYNC0
40
VSYNC2
41
BIN2P
42
BIN2M
43
SOGIN2
44
GIN2P
45
GIN2M
46
RIN2P
47
RIN2M
48
C1
49
Y1
50
C0
51
Y0
52
VCOM2
53
CVBS3
54
CVBS2
55
CVBS1
56
VCOM1
57
CVBS0
58
VCOM0
59
CVBSOUT
60
GND
61
SIF0M
62
SIF0P
63
AVDD_SIF
64
SIF1P
SOUND OUTPUT
I2S Digital INPUT
SOUND INPUT
PANEL INTERFACE
+5V_PANEL
C339
1uF
10V
1 1 1 1 1 1 1 1 1 1
R302 R303
4.7Kohm 4.7Kohm
IC303
1/10W 1/10W
C401 C400
10nF 100uF
MX25L4005M2C-15G
SPI_CZ 1 1 8
CS# VCC
SPI_DO XREF 1 2 7 1
R395
100ohm SO HOLD#
XREF 1 3 6 1
XREF
M_WR_PROTECT WP# SCLK
4 5
XREF 1
GND SI
XREF
1 3 1
7 5
2 8 6 4 2
+1.8V_LIVE
AVDD_MPLL
+3.3V_LIVE
R373
2.2Kohm
1/10W
+3.3V_LIVE
R393 100ohm
PWM3
PWM2
192
PWM2
191 R377 100ohm
DIGO[8]
190
DIGO[7]
189 R394 100ohm
DIGO[6]
188
DIGO[5]
187
DIGO[4] R770
186 0ohm 24V_DET
DIGO[3] 185 R771 1/10W 0ohm
PANEL_RESET
DIGO[2] 1/10W
184
DIGO[1]
183
DIGO[0]
182
VDDC R764 0ohm
181
GND +3.3V_LIVE
180 1/10W
VDDP 179
IRIN R765 0ohm
178
INT
177 R382 1/10W 100ohm
DDC_SCL_A
DDCA_CK 176
R384 100ohm
DDC_SDA_A
DDCA_DA
175 R385 100ohm
SCL
DDCR_CK
174 R386 100ohm
SDA
DDCR_DA
173
PWM1
PWM1
172
PWM0
PWM0
171 R766 100ohm
SAR3 170
R390 100ohm AFT
SAR2 +3.3V_LIVE
169 KEY1
SAR1
168 KEY2
SAR0 167
R317 100ohm SPI_DO
SDO
166 R318 100ohm
SPI_CZ
CSZ
165 R319 100ohm
SPI_DI
SDI 164
R322 100ohm SPI_CK
R305
SCK
163
GND 4.7Kohm
162
VDDP 161
ALE
160 CHK_DVI
RDZ
159 INV_SOS
WRZ
158 R767 100ohm 24V_DET
AD[7]
157 U2546 100ohm
AD[6]
156 HP_SENSE
AD[5] 155
HP_EN
AD[4]
154
AD[3]
153
AD[2] 152
POWER_KEY
AD[1]
151 CHK_HDMI
AD[0]
150 1 2
MADDR(11)
MADR[11] 3 4
149
MADDR(10) MADDR(0:11)
MADR[10] RA301 5 6 22ohm
148
MADDR(9)
MADR[9]
147 7 8
MADDR(8)
MADR[8]
146
VDDC +2.5V_M
145
GND
144
VDDM 143 1 2
MADDR(7)
MADR[7] 3 4
142
MADDR(6)
MADR[6]
141 RA302 5 6 22ohm
MADDR(5)
MADR[5] 7 8
140 MADDR(4)
MADR[4] 1 2
139
MADDR(3)
MADR[3]
138 3 4
MADDR(2)
MADR[2] RA303 5 6 22ohm
137 MADDR(1)
MADR[1] 7 8
136
MADDR(0)
MADR[0]
135
WEZ
WEZ 134
CASZ
CASZ
133 AVDD_MEMPLL
AVDD_MEMPLL
132
VDDM
131
GND
130
RASZ
RASZ
129
BADR[0] BADR0
+5V_MICOM
TP330
1
C345
100nF
1 8
R353
NC VCC
2 7
NC /WC
3 6 1
E2 SCL
4 5
VSS SDA
1
100ohm
S-24CS08AFJ-TB-1GE
IC302
+3.3V_LIVE
AVDD_ADC
AVDD_DVI AVDD_SIF
FT300
BLM41P600S
C303
1nF
C343
C306 C307 C340 C342
50V
1uF 1uF 100nF 1uF
1uF
C341
1uF
SPI_CK
SPI_DI
+3.3V_LIVE
AVDD_ADC AVDD_SIF AVDD_AU AVDD_MEMPLL
L300 L301 L302
3.3UH 3.3UH 3.3UH
VDDP
+5V_MICOM
IC205
DS1834AS/T.R
C322 C333 C324 C325 C326 C327 C328 C329 C330
1 8
XREF
5VIN 3.3VIN 1uF 1uF 1uF 1uF 1uF 1uF 1uF 1uF 1uF
2 7
XREF /5V_RST
/3.3V_RST
3 6
5V_TOL
3.3V_TOL
4 5
GND /PBRST
PANEL_EN
AUDIO_EN
AUDIO_MUTE
DDC_CTL
CHK_DSUB
MDATA(0:15)
+2.5V_M +2.5V_M
IC301
R321
K4D261638I-LC50
4.7Kohm
1 66
VDD VSS
2 65
MDATA(0) DQ0 DQ15 MDATA(15)
3 64
VDDQ VSSQ
4 63
HP_EN MDATA(1) DQ1 DQ14 MDATA(14)
5 62
MDATA(2) DQ2 DQ13 MDATA(13)
6 61
VSSQ VDDQ
7 60
MDATA(3) DQ3 DQ12 MDATA(12)
8 59
MDATA(4) DQ4 DQ11 MDATA(11)
+3.3V_LIVE 9 58
VDDQ VSSQ
10 57
MDATA(5) DQ5 DQ10 MDATA(10)
11 56
MDATA(6) DQ6 DQ9 MDATA(9)
12 55
VSSQ VDDQ
13 54
MDATA(7) DQ7 DQ8 MDATA(8)
14 53
NC NC
15 52
R320 VDDQ VSSQ
16 51
DQS1 DQS0
LDQS UDQS
4.7Kohm
17 50
NC NC
18 49
MVREF2
VDD VREF
19 48
NC VSS
R338 R326
100ohm 20 47
AMP_EN DQM
LDM UDM
21 46
WEZ
/WE /CLK
22 45
CASZ
/CAS CLK
RASZ 23 44
/RAS CKE MCLKE
24 43
/CS NC
25 42
NC NC
BADR0 26 41
BA0 A11 MADDR(11)
27 40
BADR1 MADDR(9)
BA1 A9
28 39
MADDR(10)
A10/AP A8 MADDR(8)
29 38
MADDR(0) MADDR(7)
A0 A7
30 37
MADDR(1) MADDR(6)
A1 A6
31 36
MADDR(2)
A2 A5 MADDR(5)
32 35
MADDR(3) A3 A4 MADDR(4)
33 34
VDD VSS
MADDR(0:11)
Memory Block
R300 R301 R354
4.7Kohm 4.7Kohm 4.7Kohm
100ohm
WR_PROTECT
R351
SCL
100ohm
SDA
R352
Scaler
7. Schematic Diagram
DATE
AVDD_AU AVDD_MEMPLL AVDD_MPLL
C346
C344 C347
C321
1uF 1uF 1uF
1uF
AVDD_MPLL VDDP AVDD_DVI
L303 L304 L305 L307
3.3UH 3.3UH 3.3UH 3.3UH
+1.8V_LIVE
C331
C332 C334 C338 C335 C336 C337
1uF
1uF 1uF 1uF 1uF 1uF 1uF
+2.5V_M
R324
1Kohm
1/10W
MVREF1
R325 C310 C311
1Kohm 1nF
100nF
16V
1/10W 50V
MCLK-
R314
150ohm
100ohm 1/10W
DQM
MCLK+
+2.5V_M
R327
1Kohm
1/10W
MVREF2
R312 C312 C313
1Kohm 100nF 1nF
16V
1/10W 50V
7-5