Block Diagram; Block (1 Of 2) Diagram - Panasonic TH-42LF20U Service Manual
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Also See for TH-42LF20U:
- Service manual (49 pages) ,
- Operating instructions manual (48 pages) ,
- Manual de instrucciones (48 pages)
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9
Block Diagram
9.1.
Block (1 of 2) Diagram
POWER BOARD
412V
Q602
IC633
L605
(42 ONLY)
42 :Q6801
47 :Q600,Q601,Q605,Q606
IC602
D603
400V
4
1
3
2
IC1601
200V
Q1606
MAX:AC264V/2.7A
NOISE
FILTER
K601
IC605
1
S/OCP
BR
2
GND
3
FB/OLP
4
HOT
COLD
D650
400/3A
T6011
Q604
Q604
DC416V
42 :T602
47 :T600
400/3A
6
7
8
4
3
Q1601
11
24VP
2
24VH
12
1
5VSTB
D651
Q690~692
D652
Q6800
RL601
Q613
Q612
Q614
T652
Q615
400V
1
10
MAIN-ON/OFF
2
9
3
8
D/ST
520V
8
4
D/ST
7
7
VCC
5
5
42 :PC603
47 :D6809
KIV1
12
12
11
24VP
10
9
8
LCD PANEL
7
6
24VP
5
4
3
2
1
1
KIV2
12VH
14
BLON
14
I_PWN
13
E_PWN
12
SEL
11
12VA
10
9
8
7
6
24VP
5
4
3
24VH
2
1
1
24VP
K6C
K16C
11
11
11
11
BLON
BLON
10
10
I_PWN
9
9
DCR_VBR
E_PWN
8
8
SEL
7
7
6
6
5
5
4
4
L6605
3
3
12VA
2
2
1
1
1
1
PWR-30V
IC603
12VA
12VH
Q607
Q684
K16B
K6B
Q685
13
13
13
13
12
12
12VA
ON/OFF
11
11
12V/24V_EN
10
10
L6604
24VP
9
9
8
8
7
7
6
6
5VSTB
5
5
L6603
4
4
SWICH1
3
3
24VP
2
2
1
1
SWICH
1
1
K16A
K6A
1
1
F_5V
MCU_5V
1
1
2
2
MAIN-ON/OFF
3
3
F_5V
MAIN_EN
4
4
F_5V
SWICH2
5
5
SWICH1
SWICH1
6
6
SWICH
SWICH
7
7
7
7
25
TH-42LF20U / TH-47LF20U
MAIN BOARD
3.3V_I/O
KLVP
Q4001
PWM1
DCR_VBR
DCR_IN
OPC_EN
OPC_EN
PEL-TEST
MAIN CHIP
3.3V_I/O
IC7200
PEL-TEST
(NEXT PAGE)
PANEL_12V
BLON
DCR_VBR
12VPAN_EN
MAIN_EN
SWICH2
SWICH1
SWICH
P_FAIL1
3.3VSTB
4
IC7501
1.2VSTB
4
3
2
1
IC7504
3
2
1
Q7501
12V_PWR
5VSTB
8
1
5VSTB
7
2
6
3
Q6620
5
4
Q7502
5VD_PWR
Q6621
3.3V_AUD
4
IC7505
P_FAIL1
1.2V_AUD
3
2
1
3.3V
3.3V_LBADC
4
3.3V_I/O
IC7503
3.3V_LVDS
3
2
1
3.3V_ADC
3.3V_HDMI
P_FAIL1
3.3V_DDR
IC6612
5VSTB
3.3V_SW
IC5503
1.8V_DDR
1
8
7
2
24V
3
6
4
5
9
P_FAIL1
0.9_DDR_VREF
1.2V
IC6600
1.2V_CORE
4
IC7506
PANEL_12V
1.2V_ADC
3
2
1
1.2V_DPRX
12V
1.2V_HDMI
1.2V
12VPAN_EN
1.8V_DDR
3.3V
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