LG 47LE8500 Service Manual page 22

VIDEO DECODER for CHB
+3.3V_ADC
+1.8V_ADC
L1500
BLM18PG121SN1D
C1501 0.1uF
R1501 33
SCL0_3.3V
R1502 33
SDA0_3.3V
R1500 100
9:G3
TW9910_RESET
C1502 0.1uF
C1503 0.1uF
C1504 0.1uF
C1505 0.1uF
C1500
R1504 0
TU_CVBS_CHB
7:AI7;7:AJ21 0.1uF
MODEL_OPT_4
DTV_ATV_SELECT
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
+3.3V_ADC
+1.8V_ADC
VDDE_1 VD[7]
1 36
AR1500 22
SCLK VD[8]
2 35 TW9910_DATA[0]
SDAT VD[9] TW9910_DATA[1]
3 34
PDN VD[10]
4 33 TW9910_DATA[2]
IC1500
RSTB VDD
C1518 TW9910_DATA[3]
5 32
0.1uF
TMODE TW9910DANB2-GR NC_3
6 31
NC_1 VD[11]
7 30
AR1501 22
AVD_1 VD[12] TW9910_DATA[4]
8 29
0x88
YMUX3 VD[13]
9 28 TW9910_DATA[5]
YMUX2 VD[14] TW9910_DATA[6]
10 27
YGND VD[15]
11 26 TW9910_DATA[7]
YMUX1 VDDE_2 C1519
12 0IPRP00630E 25
0.1uF
C1512
0.1uF
R1513
TW9910_CLK
22
C1513
0.1uF
R1528 0
TW9910_RESET
R1529 0
CHB_RESET
TW9910_DATA[0-7]
F3
TW9910_DATA[0-7]
TW9910_DATA[4]
TW9910_DATA[3]
TW9910_DATA[2]
R1521
TW9910_CLK
0
TW9910_DATA[1]
TW9910_DATA[0]
FE_TS_CLK_CHB
FE_TS_DATA_CHB
FE_TS_VAL_ERR_CHB
FE_TS_SYNC_CHB
POWER for CHB
+1.8V_NORMAL_CHB +1.8V_NORMAL_CHB
+3.3V_TU
IC1503
AP1117E18G-13
IN ADJ/GND
3 1
2
OUT
C1554
C1552
10uF 0.1uF
10V 16V
+3.3V_TU
+3.3V_CHB
L1508
BLM18PG121SN1D
C1545 C1548
10uF 0.1uF
10V
+3.3V_ADC
L1507
BLM18PG121SN1D
C1546 C1549
10uF 0.1uF
10V
C1535 C1538
24pF 24pF
X1501
27MHz
R1524
1M
+1.8V_CHB
+3.3V_CHB
+1.8V_CHB
C1525
VDDIO_1
42 IRQ_CHB_N
1
0.1uF D1_DATA4
2 41 TSVO0_DATA
D1_DATA3
3 40 TSVO0_SOP
D1_DATA2 39 VSSIO_3
4
VSSIO_1
5 38 TSVO0_CLK
D1_CLK 37 PA4/FIFOADR0
6
D1_DATA1 IC1501
7 36 VSSCORE_2
C1524 LG1140 C1543
VDDCORE_1 35 VDDCORE_3
8
VSSCORE_1
0.1uF 9 34 PA1/INT1# 0.1uF
D1_DATA0 33 PA0/INT0#
10 0xF2
CI0_CLK VCC_4
11 32
CI0_DATA CTL2/FLAGC
12 31
CI0_VALID SPI_MODE[1]
13 30
CI0_SOP VDDIO_3
14 29
EAN60750501
C1541
0.1uF
GP2_BCM_ATSC
CHB_VDEC_CN
+1.8V_ADC
L1503
BLM18PG121SN1D
C1527 C1531
10uF 0.1uF
10V
+1.8V_CHB
L1504
BLM18PG121SN1D
C1528 C1532
10uF 0.1uF
10V
CHANNEL BROWSER
AR1502
FE_TS_SERIAL 10:C1;I3
FE_TS_SYNC
10:C1;I3
FE_TS_DATA_CLK 10:C1;I3
FE_TS_VAL_ERR
9:G5;I3
22
09.10
15 100