Panasonic TH-42PX80U Service Manual page 4

9.3. Block Diagram (3/5)
G51 A51
V2_Y
5 V2_Y
5
V2_C
3 V2_C
3
V2_V
JK3701
7 V2_V
7
VIDEO2 V2_L
11 V2_L
11
V2_R
9 V2_R
9
1 KEYSCAN1 1
KEY SWITCH
G FRONT TERMINAL
KEY SWITCH
V1_Y
V1_C
V1_V V1
VIDEO1
V1_L
V2
V1_R
D1_Y
D1_PB
D1_PR
COMP1
D1_L
D1
D1_R
D2
D2_Y
JK3000
D2_PB
D2_PR
COMP2
D2_L
D2_R
MON_V
MON_L
MONITOR
OUT
MON_R
D3005 SPDIF-OUT
OPTICAL
AUDIO
OUT
TU8300
TUNER
TV_V
VIDEO
TV_L
ANT IN
AUDIO TV_R
AFT
AFT
+30V(BT)
+30V(BT)
+5V(S)
IFD_OUT1
IFD_OUT2
IF_AGC
IIC_TU
TH-42PX80U
Block Diagram (3/5)
A DIGITAL SIGNAL PROCESSOR
V2_Y
V2_C
V2_V
V2_L
V2_R
IC3001
VIDEO SW AUDIO SW
MAIN
TV TV TV TV
OUT
V L/R AV_L/R
V1 MAIN L/R
VIDEO1 VIDEO1
Y/PB/PR
Y/C/V L/R RGB_CVBS
Y/PB/PR
VIDEO2 V2 VIDEO2
Y/C/V L/R
PC_HS/VS
VIDEO3 VIDEO3 OUT
L/R
HS/VS
VIDEO4
VIDEO4
SUB
L/R
OUT
COMP1
D1 COMP1
SUB MONO
Y/PB/PR
L/R L+R
COMP2
D2 COMP2
Y/PB/PR MONITOR
L/R
OUT
MON
PC PC
L/R
R/G/B/H/V L/R
MON
DTV_V DTV1 DTV_L/R V
DTV1
Y/C L/R
DTV2
Y/C
+9V +5V
IIC2
+9V(S)
DTV-SDIN
SPDIF-IN
IC8300
FRONT END PROCESSOR
(TERRESTRIAL RECEIVER)
+3.3V(S)
IIC2
+1.2V(S)
IIC_TU
DIGITAL
DEMODULATOR
IF_AGC
+1.8V(S)
CH0DATA
+3.3V(S)
+1.8V(S)
+1.2V(S)
RESET
AUDIO
PROCESS
TRANSPORT
DECODER R/G/B_24bit
(TS) DTV_V
VIDEO
PROCESS
LVDS_TA1P-5P
OSD
CONTROL PROCESS
IC8002
DDR I/F DDR2 #0
IC8004
IIC0 CLOCK CLOCK GEN
SD CARD SD DATA
IIC1 I/F
IIC2
SBI2 CPU BUS I/F
SBO2
IIC_IF EEPROM
IC8001 IIC3 IC8503
Peaks Lite2p
IC2106 SOUND PROCESSOR
IIC2
AV L/R
A/D
CONV.
D/A
CONV.
PWM
OUT
DTV_R
D/A
SOUND
DTV_L
CONV. PROCESSOR
SPDIF-OUT
OPTICAL
OUT
SPDIF-IN
DTV-SDIN
HDMI-SDIN
HDMI-SPDIF
+1.8V +3.3V
IC2008
+3.3V
IC2107
+1.8V
Q2301
SOUND
SOS
DET
IC5600 SUB+3.3V
F15V IC3017
+3.3V RESET
D5692
Q5603 Q5604
ON/OFF
F+15V DET
SUB+1.8V
IC5601
+1.2V(S) SUB+1.2V
+1.8V
+1.2V
GS
A52
JK7701
52
1 +3.3V 1
3 3 4bit
SD DATA
12 12
GS SD CARD SLOT
IC8502
RESET
NOR FLASH
31
IC2301
+15V(SND) AUDIO AMP
+15V
A12
ERROR DET
L(+)
L 1
SPEAKER
SPEAKER_L
L(-)
L_OUT
2
R(+)
R
3
SPEAKER
R(-) SPEAKER_R
R_OUT
4
D2301
+30V(BT)
D4006
L4001 L4000
D5613
KEYSCAN3
D4007 Q4016
IC5606
SOS
D5615 D5614
STB 3.3V(STB_TU)
RESET
(LED (LED 12 12 ) )
STB_RESET
SOUND SOS
ANALOG ASIC
SD CARD
+15V(SND)
1
IC4000
STB3.3V
STB_RESET
5V(S)
+9V
9V(S)
5V(STB)
STB
+3.3V
MUTE
+30V(BT)
2
+5V(S)
3
HDMI SOUND
4
+9V(S)
5
F15V
6
Y/PB/PR
7
8
+3.3V(S)
9
10
+3.3V(STB_TU)
11
R/G/B_24bit
12
LVDS_TA1P-5P
13
TH-42PX80U
Block Diagram (3/5)