Block Diagram (1 Of 2) - Panasonic TC26LX70 Service Manual

TC-26LX70 / TC-32LX70

15.2. Block Diagram (1 of 2)

CONTROL PANEL ASSY
P-BOARD
CN1
AC CORD POWER SUPPLY
1
Exchange board only
3
N0AB3GJ00012
TC-26/32LX70
Block Diagram (1 of 2)
TU8300
DT-BOARD
TUNER
L OUT
ANT IN
R OUT
VIDEO OUT
SUB+5V
BT+30V
IFD OUT
IC8302
FRONTEND
IIC2
DIGITAL
DEMODULATOR
AP-BOARD
K1 AP6
CONTROL
1 KEYSCAN 1
BUTTON
IC7215 SOUND+15V
+15V
SOUND+15V
OVER VOLTAGE DET
D7246 D7245
SW7203
(20V)
H:ON/L:OFF
POWER SW
IC7205
SUB+5V
+5V
SUB+5V
OVER VOLTAGE DET
ON
D7251 D7252
(7.5V)
H:ON/L:OFF
IC7209
SUB+9V
SUB+9V
OVER VOLTAGE DET
+9V
D7258
(11V)
AP
CN3
2
D7601
12 12
STB+5V
+24V
1 +24V 1 H:ON/L:OFF
D7203
(27V) D7204
2 +24V 2
3 3 +24V
+24V
OVER VOTAGE DET
4 +10V 4
5 +10V 5
11 RELAY 11
13 SUB ON 13
+24V DET
D7206
(15V)
IC7212A
PANEL+12V
D7703
(18V) D7704
+12V
PANEL+12V
OVER VOLTAGE DET
H:ON/L:OFF
CN2
1
INV+24V
INV+24V 2
INV+24V 3
4
INV+24V
CN4
INV+24V 1
INV+24V 2
3
INV+24V
INV+24V 4
5
INV+24V
A1 A-BOARD
DT1
TV1_L
74 74
TV1_R
72 72
TV1_V
70 70
SUB+5V
4 5
SUB+5V
5 6
SUB+5V
6 7
BT+30V
14 14
SUB+3.3V
2 2
SUB+3.3V
+3.3V 3 3
SUB+1.2V
+1.2V 9 9
SUB+1.2V
10 10
SUB+1.2V
11 11
SUB+1.2V
12 12
CH0 DATA,CLK,SYNC
IIC2
SCL2 SCL2
107 107
SDA2 SDA2
108 108
IIC2
IIC2
D7471 D7469
SOUND
+15V
D7220
SHORT DET
+10V
Q7210
D7474 D7472
PANEL
(LED 3 TIMES)
+12V
NORM Low
D7208
ABNORM high
BT+30V AP3
D7259
2 SOUND+15V
3 SOUND+15V
BT+30V
7 BT+30V
21 SUB+5V
22 SUB+5V
8 SUB+9V
17 DTV+9V
18 DTV+9V
AP4
Q7212
7 MAIN SW DET
MAIN_ACT
3
SUB_ACT STB+5V
11 PANEL+12V
Q7208
12 PANEL+12V
+24V DET
14 KEYSCAN
PROTECT
1 TV SOS
MAIN_ON
6 MAIN_ON
PANEL12V_ON
15 PANEL12V_ON
8 SUB_ON
Q7206,Q7207
Q7204,
Q7205
O.V.P .
CIRCUIT
PANEL+12V
PANEL PANEL
CONTROL
BACK LIGHT 8bit LVDS
LCD PANEL
INV_ON
CURRENT
INVERTER CIRCUIT
INV+24V
INV_PWM
INV_SOS INV_SOS
INV_SOS
(LED 1 TIME)
42
VIDEO2
COMPONENT
HDMI1 MONITOR
HDMI2
VIDEO
VIDEO1 AUDIO IN OUTPUT
AUDIO IN
INPUT
G-BOARD
IC3001 IC3101
VIDEO SWITCH AUDIO SWITCH
VIDEO1 TV
Y/C/V L/R
MONITOR
VIDEO2 VIDEO1
MONITOR OUT
Y/C/V OUT L/R
L/R
Y/C/V
VIDEO3 VIDEO2/HDMI2
V L/R
AUDIO OUT
COMPONET MAIN OUT VIDEO3
L/R
Y/PB/PR L/R
Y/C/V
TV COMPONET
V L/R
HDMI1
L/R
DTV
SUB9V L/R
+9V +9V
DTV
V
IIC2
IIC2
A03 SOUND15V
2
3 SUB9V
MAIN9V
Q5709
7
MAIN+9V
21
22
SUB5V
8 MAIN5V
Q5707
17
MAIN+5V
18
IC5702
STB5V STB3.3V
STB+3.3V
+3.3V
A04
IC5600
DTV9V
SUB3.3V
7
SUB+3.3V
3
+3.3V
D5692 MAIN3.3V
11
Q5711
(+5.6V)
12
KEY1 MAIN+3.3V
Q5603,04
14
SOS DTV+9V DET
1
NORM Low IC5601
MAIN_ON
ABNORM high
6
SUB1.2V
PANEL_ON
+1.2V
15
SUB_ON
8
SUB1.8V
+1.8V
A2
28
29
30
31
7
20
A16
INV_ON
3
ADIM
2
INV_PWM
4
INV_SOS
5
TC-26/32LX70
Block Diagram (1 of 2)
VIDEO3 HEADPHONE
G4 9 7 6 3 4
A8 10 4 2 6 8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21