3-58
3-59
5. ATSC/NTSC Front-End BLOCK DIAGRAM
A-VSB
Channel
Decoder
(LGDT3102)
CH3/4 RF
Modulator
AIR
RF IN
CABLE
RF IN
Loop Through
or CH3/4
Modulated Out
RF
VF_CVBS
AF_MONO
CF_CH_3/4
CF_ON/OFF
SEL_AIR/CABLE
Mix &
OSC & PLL
BPF &
AMP
VIF
TDPC-H901P
Switch
(74HC4066)
5V_SDA1
5V_SCL1
TU_SDA
TU_SCL
CF_SEL_IIC
AT/NT Combo TUNER
2 Input
RF Switch
ATSC
SAW
(X6931D)
ATSC
SAW
(X6965D)
IF signal
Down
Converter
(uPC2798GR)
38 MHz
X-tal
TU300
TU301
IC300
IC301
IC302
X301
IC304
TAMC-H018P
VIDEO
I/F
AUDIO
I/F
IF-IN-
IF-IN+
A_INN
A_INP
IC303
VSB_25M
3V_SDA1
3V_SCL1
SYSTEM I/F
SYSTEM I/F
SYSTEM I/F
VSB_DATA[7..0 ]
VSB_CLK
VSB_VALID
CVBS_OUT
FA_AFOUT
AUDIO
I/F
VIDEO
I/F
VIDEO
I/F
Summary of Contents for HD-SAT520
Page 8: ...3 8 Fig 01 Fig 02 Fig 03 Fig 04 Fig 05 Fig 06 Fig 07 Fig 08...
Page 14: ...3 14 Fig 12 Fig 13...
Page 39: ...3 39 FIG 01 FIG 02 FIG 03 FIG 04 FIG 05...
Page 105: ...3 68 3 69 2 FRONT CIRCUIT DIAGRAM...
Page 106: ...3 70 3 71 3 CPU 1 CIRCUIT DIAGRAM...
Page 107: ...3 72 3 73 4 CPU 2 CIRCUIT DIAGRAM...
Page 108: ...3 74 3 75 5 TERRESTRIAL CIRCUIT DIAGRAM...
Page 109: ...3 76 3 77 6 DVI TRANSMITTER NTSC ENCODER CIRCUIT DIAGRAM...
Page 110: ...3 78 3 79 7 ATSC TP DEMUX VD XDO CIRCUIT DIAGRAM...
Page 111: ...3 80 3 81 8 VDP I F DISPLAY CIRCUIT DIAGRAM...
Page 112: ...3 82 3 83 9 AUDIO DECODER SPDIF CIRCUIT DIAGRAM...
Page 113: ...3 84 3 85 10 NTSC AUDIO PROCESSOR CIRCUIT DIAGRAM...
Page 114: ...3 86 3 87 11 POWER DSS FRONT CIRCUIT DIAGRAM...
Page 115: ...3 88 3 89 12 DIRECTV TP DEMUX CIRCUIT DIAGRAM...
Page 116: ...3 90 3 91 13 SMART CARD I F CIRCUIT DIAGRAM 1...
Page 117: ...3 92 3 93 14 SMART CARD I F CIRCUIT DIAGRAM 2...
Page 118: ...3 94 3 95 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM...
Page 119: ...3 96 3 97 2 DIGITAL MAIN P C BOARD TOP...
Page 120: ...3 98 3 99 3 POWER P C BOARD 4 KEY P C BOARD 5 KEY P C BOARD LOCATION GUIDE...