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A DIGITAL SIGNAL PROCESSOR

G51 A51
IC2106 SOUND PROCESSOR IC2301
V2_Y V2_Y
5 V2_Y 5 +15V(SND) AUDIO AMP
V2_C V2_C IIC2
3 V2_C 3 +15V
JK3701 V2_V V2_V AV L/R A/D
7 V2_V 7 CONV.
VIDEO2 V2_L V2_L A12
11 V2_L 11 ERROR DET
V2_R V2_R L(+)
9 V2_R 9
D/A L 1
SPEAKER SPEAKER_L
CONV. L_OUT
L(-)
PWM 2
OUT R R(+)
1 KEYSCAN1 1 DTV_R 3
KEY SWITCH D/A
SPEAKER
R(-) SPEAKER_R
DTV_L SOUND R_OUT
CONV. PROCESSOR 4



G FRONT TERMINAL SPDIF-OUT OPTICAL
KEY SWITCH OUT

SPDIF-IN
DTV-SDIN
HDMI-SDIN
IC3001
HDMI-SPDIF
VIDEO SW AUDIO SW +1.8V +3.3V +15V(SND)
1
V1_Y
TV TV TV TV MAIN IC2008
V1_C OUT
V L/R AV_L/R
V1_V V1 VIDEO1 V1 VIDEO1 MAIN L/R +3.3V
VIDEO1 Y/PB/PR
V1_L Y/C/V L/R RGB_CVBS
V2 VIDEO2 V2 VIDEO2 Y/PB/PR
V1_R
Y/C/V L/R PC_HS/VS D2301
D1_Y VIDEO3 VIDEO3 OUT
IC2107 IC4000
D1_PB L/R HS/VS
VIDEO4 STB3.3V
D1_PR VIDEO4 +1.8V +30V(BT) STB_RESET
SUB 5V(S)
COMP1 D1_L L/R OUT D4006
D1 COMP1 L4001 L4000
D1 COMP1 SUB MONO +9V
D1_R Y/PB/PR D5613
L/R L+R Q2301 KEYSCAN3
D2 COMP2 SOUND D4007 Q4016
JK3000 D2_Y D2 COMP2 9V(S)
Y/PB/PR MONITOR SOS
D2_PB L/R DET
OUT
MON IC5606
D2_PR PC PC SOS
L/R D5615 D5614
COMP2 D2_L R/G/B/H/V L/R MON
STB 3.3V(STB_TU) 5V(STB)
DTV_V DTV1 DTV_L/R V (LED 12 ) RESET
D2_R DTV1 STB
Y/C L/R STB_RESET +3.3V
DTV2
Y/C +9V +5V MUTE




KEYSCAN1
SOUND SOS
MON_V IIC2 ANALOG ASIC
MONITOR MON_L
OUT MON_R
+30V(BT)
2
+5V(S)
3
HDMI SOUND
+9V(S) 4
+9V(S)
5
F15V
6
Y/PB/PR
7


D3005 SPDIF-OUT
8
OPTICAL
+3.3V(S)
AUDIO 9
OUT
10




DTV RESET
DTV-SDIN
SPDIF-IN
IC8300
TU8300 TUNER
FRONT END PROCESSOR
(TERRESTRIAL RECEIVER) IC5600 SUB+3.3V
F15V
TV_V IC3017
VIDEO
TV_L +3.3V(S) +3.3V RESET
IIC2
ANT IN AUDIO TV_R +1.2V(S)
IIC_TU

AFT DIGITAL
AFT DEMODULATOR
D5692
+30V(BT)
IF_AGC
+30V(BT) Q5603 Q5604
ON/OFF F+15V DET

+5V(S) SUB+1.8V
+1.8V(S) +1.2V(S) IC5601 SUB+1.2V

CH0DATA +1.8V
IFD_OUT1
IFD_OUT2 +1.2V
+3.3V(S) +3.3V(STB_TU)
IF_AGC
+1.8V(S) 11

+1.2V(S)
RESET
R/G/B_24bit
IIC_TU AUDIO 12
PROCESS
TRANSPORT LVDS_TA1P-5P
R/G/B_24bit 13
DECODER
(TS) DTV_V
VIDEO
PROCESS LVDS_TA1P-5P

GS
OSD A52 52 JK7701
CONTROL PROCESS
IC8002 1 +3.3V 1

3 3 4bit
DDR I/F DDR2 #0 SD DATA
12 12
IC8004 SD CARD

IIC0 CLOCK CLOCK GEN
SD DATA
GS SD CARD SLOT
SD CARD
IIC1 I/F IC8502
RESET

IIC2 NOR FLASH

SBI2 CPU BUS I/F
SBO2
IIC_IF EEPROM

IC8001 Peaks Lite2p IIC3 IC8503




TH-42PX80U TH-42PX80U
Block Diagram (3/5) Block Diagram (3/5)