Panasonic TC 19LX50, Service Manual

Page: 13 / 44

8 Block Diagram
8.1. Block Diagram (1 of 3)
+
+
+
+
PUSH
+
+
+
INV_SOS
INV_ADIM
INV_ON
INV_PWM
KEY
MAIN_SW_DET
INV_ADIM
INV_PWM INV_SOS
INV_ON
KEY
MAIN_SW_DET
D24
R14
1K
D890
Q862
Q864
Q854
D877
C23
220u
R3817
Q859
D21
R3815
D879
RC2
D869
Q868
D10
D886
CN1
C18
100u
D12
R931
Q865
R3821
R913
C12
47u
D875
D878
R3816
RC3
Q856
SW3804
R930
D5
C19
100u
R892
SW3808
Q869
D889
D11
D23
R936
R932
R9 22K
R934
R19
1K
D13
C13
2200p
SW3807
Q867
SW3803
R900
RC1
SW3805
C17
100u
R891
D6
R3818
Q870
D872
D7
R18
2.2K
C21
1000u
R933
D18
D876
SW3806
D884
D882
D14
C6
330u
R896
Q857
D887
R937
D9
R910
Q855
D871
R14
150
D8
D17
R935
D873
R3
0.1
Q866
3
+5VS
AP3
7
POWER ON/OFF
5
K-BOARD
HOT
CN2
9
6 14
5
AP1
12
SWITCHING TRANS
13
13
19
6
+32V
COLD
2
17
2
H:ABNORMAL
1
HOT
L:NORMAL
1
DD1
AC CORD
13V(SOUND_10V OVP)
4
18
CH
7.5V(PANEL_5V OVP)
TV/VTR
RL1
7
MAIN_SW_DET
CH
+5VS
VOL VOL
RELAY
IC854
STB+5V
INV_ADIM
PANEL 5V ON/OFF
16
14
17
13
18
12 AP4 11
7.5V(SUB_5V OVP)
13
15
SOS DET
2
+30V(BT)/+5V(P)
18
SWITCHING REG
20
IC851
HOT
22
19
1
+24V
SUB+9V
POWER UNIT
MAIN+3.3V
AP6
2
2
6
Z2
5
POWER SWITCH
7
13
6
8
6
3
5
10
11
4
1
14
3
Q861
POWER_ON
1
AP4
15
4
DC-DC ON/OFF
4
SUB+5V
2
MAIN+9V
4
PANEL+5V
5
14
3
GENE
2
INV_ON
5
AVR
INV_SOS
1
4
INV_PWM
2
COLD
+24V(INV)
AVR
1
15
SOUND+10V
+24V(INV)
5
COLD
BT_30V
+24V(INV)
OSC
DC-DC ON/OFF CONTROL
+24V(INV)
IC855
+24V(INV)
1
4
2
3
AVR
11
5
SHORT DET
IC852
IC853
1 2
PC2
AVR
LCD PANEL
+24V(INV)
5
+24V(INV)
16 +24V(INV)
5V
+24V(INV)
FEED BACK
1
9
11V(SUB_9V OVP)
6
2
1
AVR
3
DRIVE
K5
1
T2
2
RELAY
KEYSCAN
STBY 5V
3
Q2
4
+32V
CONTROL
(INVERTER)
TO
DC-DC ON/OFF
DC-DC ON/OFF
RECTIFIER
B
7 4 6
D
2
E
C
A
8 1 5 3
AP-BOARD
TC-19/23LX50, TC-19/23LE50
Block Diagram (1/3)
TC-19/23LX50, TC-19/23LE50 Block Diagram (1/3)
TC-19LX50 / TC-23LX50 / TC-19LE50 / TC-23LE50
15
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