Text preview for : 20LCD_VIDDECODER.pdf part of China BEKO 20LCD BEKO 20LCD
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+5V
+3.3V
VDD3
L400 FERRIT BEAD
C412 22uF
10V
C413 0.1uF
C414 0.1uF
C415 0.1uF
C416 220pF
C417 220pF
C424 220pF
C425 220pF
C426 0.1uF
C427 0.1uF
C428 0.1uF
C429 0.1uF
C430 0.1uF
C431 0.1uF
C432 0.1uF
C433 22uF
10V
L401 FERRIT BEAD
D Vin
Vin
R418 100R C438 47pF GND C439 47pF GND CVBS_Out C400 0.1uF
Vo
R401 22R R106 75R R403
Q401 BC848B 1
R402 12K GND C435 + 59 69 76 9 10 26 29 36 45 52
3
GND
D
75R R406 75R
2 R404 1K GND
R405 22K GND
22uF
Vin2 SC2_St SC1_St SCL5V SDA5V /RESET
100R SC2_St SC1_St SCL5V SDA5V /RESET
C401 C402
0.1uF
GND GND
8 61
NC NC
VSUPCAP VSUPD VSUPA VSUPLLC VSUPY VSUPC VSUPSY
Vin2
VSTBY VSUPF VSUPAI
R419
C418 47pF
U400
0.1uF C440 47pF C403 0.1uF GND 70 72 71 73 74 75 79 1 2 3 4 5 6 78 GND 4 GNDC409 0.1uF C410 U401 HEF4053BT Y 15 0.1uF C411 X 14 0.1uF A 11 10 9 3 R412 10K GND C423 3.3pF GND GND 7 64 11 12 25 30 35 46 51 65 68 77 80 C436 0.1uF C422 3.3pF 63 62 X400 20.25 MHz 67 16 XTAL2 XTAL1 I2CSEL TEST R408 220R GND SCL SDA C408 10uF
10V
VOUT VIN1 CIN VIN2 VIN3 VIN4 FB1IN B1/CB1IN G1/Y1IN R1/CR1IN B2/CB2IN G2/Y2IN R2/CR2IN VREF VGAV VRT YCOEQ RESQ SCL SDA
/STDBY SC1_FBL Y_IN C_IN Vin1
Y_IN C_IN
/STDBY SC1_FBL R420 100R R421 100R R422 100R
C437 47pF C404 GND 0.1uF C434 47pF GND
C7 C6 C5 C4 C3 C2 C1 C0 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 LLC2 LLC1 INTLC VS AVO MSY/HS FSY/HC FPDAT
41 42 43 44 47 48 49 50 31 32 33 34 37 38 39 40 27 28 53 57 GND 54 56 55 58 R415 220R R414 220R 60 24 23 22 21 20 19 C454 220pF GND C455 47pF
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
R400 4 3 2 1 4 3 2 1
47R VCLK 5 6 7 8
YUV7 YUV6 YUV5 YUV4 YUV3 YUV2 YUV1 YUV0
RN401
Vin1
RN400 47R
5 6 7 8
YUV[0..7]
+12V
L410 R436 C443 SC_B
SC_B
C441 2.2uF 16
C442 0.1uF
47R
YUV[0..7]
FERRIT BEAD R430 47K 3 C444 5 0.1uF 1 C446 0.1uF C447 2 13
4.7K VDD Z1 Z0 Y1 Y0 X1 X0 INH B VEE VSS C
C R431 47K SC_G SC_G R432 47K R433 47K SC_R R434 47K R435 47K R437 2.2K C450 0.1UF
SC_R
0.1uF C445 0.1uF
Z
C419 0.047uF
C420 10uF
10V
C421 0.047uF
GND
17 66 18 15 13 14
C O_HS O_VS
CLK5 CLK20 FFOE FFRE FFRSTW FFWE FFIE
0.1uFC448 12 0.1uF 6 7
ASGF ASGF GNDD GNDCAP GNDPA GNDLLC GNDY GNDC GNDSY GNDF ISGND GNDAI AISGND
VPC3230D
GND GND
1 R410 47K
Q402 BC848B 2 GND
8
C449 220pF
GND
OSD_FBL C405 OSD_B 0.1uF C406 OSD_G B OSD_R /RESET SCL SDA 0.1uF 0.1uF C407 B
20'' LCD TV (CHIMEI) Kod= ZH1.190-02 schematic= VIDEO DECODER
A A
Proje=
Beko Elektronik A.S.
Size C Title 2. Video Decoder
Control Sheet 4
6
Rev A
of 9
Document Number Date 24-Sep-2003
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