8
A | B | C | D | E | F | G | H |
SCALER VIDEO/AUDIO SCHEMATIC DIAGRAM
(DIGITAL PCB)
8
7
6
5
4
3
2
1
FROM/TO JACK
AV3/AV4_Y
AV1_CVBS
AV3/AV4_PB
AV3/AV4_PR
SPDIF
FROM/TO TUNER
TU_CVBS
I2C_CLK
I2C_DATA
FROM SCALER POWER
AD_A3.3V
FROM/TO AV SWITCH
SW_Y_IN
SW_C_IN
MCLK
SDOUT
LRCK
BCLK
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| SCALER IC |
| IC2801 |
| R8J66954BG |
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| R2900 |
| J1 | PCVIN |
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| C2925 | 0.1 | B | 10K |
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| K1 | SSIN1 |
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| C2946 | 0.1 | B |
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| 1.6 | K2 | SSIN2 |
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| C2937 | 0.1 | B |
| 2 |
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SW_Y_IN |
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| C2939 | 0.1 | B |
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TU_CVBS |
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| 1.1 | L2 | VIN1A |
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| 3 |
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AV1_CVBS | C2938 | 0.1 | B |
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| 1.2 | L3 | VIN2A |
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| C2940 | 0.1 | B |
| 0 | M1 | VREFA |
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AV3/AV4_Y | C2931 | 0.1 | B |
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| 1.7 | M2 | VIN4A |
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| C2941 | 0.1 | B |
| 0 | M3 | VRPA |
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SW_C_IN | C2932 | 0.1 | B |
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| 2.0 | N1 | VIN2B |
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| NC | N2 | VIN6A |
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| R2872 | 100K |
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| C2926 | 0.1 | B |
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| N3 | VIN5A |
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| R2873 | 100K | ||
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| C2942 | 0.1 | B |
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| N4 | VRMA |
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| C2933 | 0.1 | B |
| 0 | P1 | VRPB |
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| C2943 | 0.1 | B |
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| P2 | VREFB |
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| C2934 | 0.1 | B |
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AV3/AV4_PB |
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| 1.9 | P3 | VIN3B |
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| C2944 | 0.1 | B |
| 0.3 | R1 | VREFC |
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| C2935 | 0.1 | B |
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| R2 | VRMB |
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| C2927 | 0.1 B |
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| ROUT |
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| C2936 | 0.1 | B |
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| LOUT |
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AV3/AV4_PR | C2945 | 0.1 | B |
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| T2 | VIN2C |
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| 7 |
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| C2947 | 0.1 | B |
| 0.2 | U1 | VRMC |
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| C2957 | 0.1 | B |
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| U2 | VIN3C |
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| C2929 | R2837 |
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| SICL | V9 | 3.3 |
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AD_A3.3V |
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| 3.3 | V1 | LPF |
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| 0.1 B |
| 1K |
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| R2852 | 10 |
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| W9 | 3.3 |
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| R2851 | 10 |
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| I2C_CLK |
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| I2C_DATA |
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| SCLK0(GPIO) AA8 | 3.3 |
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| R2801 | ASW0 |
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| SRXD0(GPIO) | Y8 | 3.3 |
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| 4.7K |
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| STXD0(GPIO) | W8 3.3 | ASW2 |
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| LIGHT_CTL |
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| QBLCA J21 | 3.0 | BL_PWM | R2846 | 4.7K | C2959 | C2965 |
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| 4.7K |
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| QBLCB(GPIO)J20 | 3.0 |
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| W855 |
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| QBLCC(RXD0)J19 | 3.3 |
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| TWIRE_RXDC |
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| W854 |
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| J18 | 3.3 |
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| TWIRE_TXDC |
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| VREFDAC |
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| ADATAO |
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| ROUT | LOUT |
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| SPDIFO | ACLK | LRCKO | BCKO | SANT |
| V8 | 3.3 |
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| MCU_SCIRXD |
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| SCIRXD V7 | 3.3 |
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| MCU_SCITXD |
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| SCISCK(GPIO) W7 3.3 |
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| IIC_OFF |
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| W3 | AA3 | AA4 | V4 | W4 |
| Y5 | V5 | W5 | W6 | Y6 | AA6 | V6 | Y7 |
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| 1.6 | 2.0 | 2.0 | 0 | 3.3 | 0 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| 3.3 |
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| R2838 | 4.7K R2840 |
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| 2 1 | A0 |
| Vcc | 7 8 | R2856 | C2968 |
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| 10K |
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| A1 |
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| R2839 |
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| 0 | 4 3 | A2 |
| SCL | 5 6 | 3.3 | 10K | 0.1 | B |
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| C2948 | C2949 | 0.1B |
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| 4.7K | R2842 | 10K |
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| 0 |
| 3.3 |
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| Vss |
| SDA |
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| EEP ROM |
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| IC2805 |
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| C2950 | CH220P C2951 |
| ROUT | LOUT |
| DETS1 |
| R2841 | SPDIF10K | MCLK | SDOUT | LRCK | BCLK | R2874 | 4.7K |
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| DATAI2C | CLKI2C |
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| 220PCH |
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| W881 |
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TO JACK
LOUT_FI
ROUT_FI
TO AV SWITCH
ASW0
ASW2
FROM/TO FLASH
IIC_OFF
I2C_CLK
I2C_DATA
FROM/TO MICON
MCU_SCIRXD
MCU_SCITXD
I2C_CLK
I2C_DATA
FROM/TO REGULATOR
S1_DET
TWIRE_RXDC
TWIRE_TXDC
LIGHT_CTL
GND
D3.3V
AT+3.3V
PCBDH0
CEH420
7
6
5
4
3
2
1
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| NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME | NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED |
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| OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE |
| WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST |
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| WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL. |
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| A | B |
| C |
| D |
| E | F | G | H |
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