TH-L37D25A
34
9.2.
Detailed Block Diagram (1/3)
C O L D
H O T
G
R
VCC
GND
OUT
+
NEED HOLDER
+
NEED HOLDER
NO
HOLDER
+
+
NEED HOLDER
NO
HOLDER
BACK_LIGHT_ON
PWM_PWR_ON
PANEL_VCC_ON
BACK_LIGHT_SOS
D5425
D2500
DTV12V
D5422
SUB3.3V
SUB1.2V_D
D5421
D5423
STB5V
SUB3.3V
FE1.2V
DTV12V
P17V
D5424
SN2500
SUB1.5V(DDR1.5V)
SUB_OP_5V
D5420
D5427
D5426
RM2500
PNJ4815M01TV
1
2
3
STB_SUB5.8V
SUB1.2V_A
Q354B
D553
D452
12V
D653
D409
174V
F001
D554
D363
D205
D403
D564
F002
L202
D558
F301
D210,D211
D565
D353
D559
D560
F401
R003
F101
Q501
D451
12V
D555
D402
D566
D201
D557
D556
Q354A
174V
SUB_ON
8
4
AV2_V
1
R/G/B/H/V
A02
3
STB3.3V
Q4770,71
+1.5V
AV3_R
AV3_V
IC5500
TV
ANT IN
L/R
5V
S01
IF_AGC
3.3V
+3.3V
5
C.A.T.S
IF_AGC
10
C.A.T.S
V OUT
3
P-BOARD
V/Y/PB/PR
IC8300
SUB9V
5
AV3_L
IC2952
SIF
4
2
AV1
11
ASSY
IIC2
IC5200
AV3
PC-B
IC2950
IIC_TU
SUB5V
POWER LED
L/R
1
+5V
L/R
IFD1
3
IC5220
Y/PB/PR,
R/G/B/H/V
CVBS
PC
1.2V
Y/C/V
SUB5V
PC
PC-G
7
1
IFD_OUT1
L/R
1
CONTROL PANEL
V2_R
AV1_V
AV SW
PC-H
DVB_CVBS
MAIN OUT
19
AV2_L
IC5300
7
REMOTE RECEIVER
TUNER5V
JK3304
DCDC_CTL
IC3000
MONITOR OUT
STB5V
17
KEY
POWER SUPPLY
1
2
IIC2
G_LED_ON
IC8302
IFD_OUT2
POWER LED
V
13
C.A.T.S. SENSOR
PC-V
AV2
PC-R
L/R
AV3
AV2_R
3
DTV
5
5
STB5.8V
DIGITAL
DEMODULATOR
V-BOARD
+5V
V10
SUB_ON
TUNER
IC5280
AV1_R
REMOTE
3
IIC_TU
OVP DET
1.2V
LR OUT
2
SUB5V
2
IFD2
AV1_Y
A-BOARD
R_LED_ON
+1.2V
12
V2_V
15
AV1_L
SUB9V
A09
6
2.5V
AV2
9
AV1_PB
(SIDE)
9
JK3301C
V
TU2901A
7
DIGITAL SIGNAL PROCESSOR
5.8VS
A10
+1.2V
OFDM
AV1_PR
JK3300
IC5501
13
V
OPERATION
BUTTON
REMOCON
Q5241
AV1
V2_L
+5V
3
LVDS DATA
AC IN
DET
D3A2-D3C2/D3D2-D3F2
4A
AC250V
V IN
I551
Q555
LED CURRENT
CONTROL
V OUT
SOS_ON
4A
AC250V
3
I3A1-I3C1/I3D1-I3F1
RESONANCE
174V
Q452
I501
D3A1-D3F1
S101
V_DET
L352A
L353A
I301
I401
PHOTO COUPLER
Q301,Q302
I352A
G
D
#2 Anode
#3 Anode
15
Q551
13
SUB_ON
VCC
Q351B
D358B
LED DRIVE
BACK LIGHT
SOS
#4 Anode
BACK LIGHT
SOS
5.8V_ON
SENSE
OVP DET
I351B
I354B
SOS
SOS
5
2A AC250V
7
L401
Q556
18V
T401
5.8V
L451
CN02
Q454
174V
ERROR DET
11
I3G1-I3I1/I3J1-I3L1
SUB_ON
L001
3
RELAY
1
5
D3G1-D3L1
L352B
L353B
Q305
Q401
1
4
PHOTO COUPLER
PWM2
AUDIO_VCC
CN01
DTV12V
PHOTO COUPLER
D102
D357A
#1
Cathode
OVP DET
#2
Cathode
I354A
#3
Cathode
174V
ERROR DET
I201
#4
Cathode
11
5.8VS
D358A
SUB_ON
STB_SUB5.8V
VCC
AC CORD
RELAY_ON
CONTROL
PWM
SENSE
4
RECTIFIER
5
CNAC
POWER
CONTROL
4
D
G
Q355
SOS Latch
SUB_ON
12V
SUB_ON
9
8
I402
CONTROL
T301
TO
LED
BACK LIGHT
Q357
D753
12
1
Q356
10
2
PFC
BACK
LIGHT
ON
CURRENT
CONTROL/DRIVER
CURRENT
CONTROL/DRIVER
L003
Q352B
STB
SOS
D103
D3G2-D3I2/D3J2-D3L2
I352B
Q554
V IN
DTV12V
PHOTO COUPLER
Q553
I353A
12V ERROR DET
PHOTO COUPLER
V OUT
I552
I752
+
I353B
PWM
V+
-
Q453
RECTIFIER
AC IN_ON
S103
D357B
LED CURRENT
CONTROL
PHOTO COUPLER
I451
P2
ERROR
DET
9
I553
I453
Q351A
PHOTO COUPLER
SOS Latch
12V
PWM1
SOS
I751
2
PHOTO COUPLER
STB5.8V
ERROR DET
13
OVP
S102
SOS
Q352A
PWM
OVP
12
#1 Anode
1
I452
PHOTO COUPLER
4A AC250V
BACK
LIGHT ON
LINE
FILTER
I351A
10
9
+
Q201
Q202
Q203
-
Q204
D755
2
TC05
IIC1
29
LVDS DATA
47
1
[R(A-D)_0+/-)]
[R(A-D)_E+/-)]
5
LVDS DATA
PNL12V
49
46
PWM_POWER_ON
13
A15
24
40
5.8V
BACK_LIGHT
_ON
5.8V
LED DRIVE
TC06
COLD
HOT
Summary of Contents for TH-L37D25A Viera
Page 15: ...TH L37D25A 15 7 2 AC Cord Dressing 2 ...
Page 17: ...TH L37D25A 17 7 4 AC Cord Bracket Installation Put on AC CORD BRACKET on cabinet and screw it ...
Page 18: ...TH L37D25A 18 7 5 Control Panel Assembly Put CONTROL PANEL ASSY on cabinet ...
Page 24: ...TH L37D25A 24 7 11 SP Unit Installation Put SP UNIT L and SP UNIT R on CABINET ...
Page 39: ...TH L37D25A 39 11 Schematic Diagram 11 1 Schematic Diagram Notes ...
Page 40: ...TH L37D25A 40 11 2 A Board 1 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 41: ...TH L37D25A 41 11 3 A Board 2 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 42: ...TH L37D25A 42 11 4 A Board 3 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 43: ...TH L37D25A 43 11 5 A Board 4 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 44: ...TH L37D25A 44 11 6 A Board 5 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 45: ...TH L37D25A 45 11 7 A Board 6 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 46: ...TH L37D25A 46 11 8 A Board 7 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 47: ...TH L37D25A 47 11 9 A Board 8 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 48: ...TH L37D25A 48 11 10 A Board 9 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 49: ...TH L37D25A 49 11 11 A Board 10 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 50: ...TH L37D25A 50 11 12 A Board 11 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 51: ...TH L37D25A 51 11 13 A Board 12 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 52: ...TH L37D25A 52 11 14 A Board 13 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 53: ...TH L37D25A 53 11 15 A Board 14 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 54: ...TH L37D25A 54 11 16 A Board 15 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 55: ...TH L37D25A 55 11 17 A Board 16 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 56: ...TH L37D25A 56 11 18 A Board 17 17 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 57: ...TH L37D25A 57 11 19 V Board Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 58: ...TH L37D25A 58 11 20 TC Board 1 6 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 59: ...TH L37D25A 59 11 21 TC Board 2 6 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 60: ...TH L37D25A 60 11 22 TC Board 3 6 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 61: ...TH L37D25A 61 11 23 TC Board 4 6 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 62: ...TH L37D25A 62 11 24 TC Board 5 6 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 63: ...TH L37D25A 63 11 25 TC Board 6 6 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 81: ...Model No TH L37D25A Parts Location ...
Page 82: ...Model No TH L37D25A Packing Exploded View 1 ...