Panasonic TX-LR32D25 Service Manual ▷ View online
TX-LR32D25
33
9 Block Diagram
9.1.
Main Block Diagram
(L
ED
:1
T
IM
ES)
C O L D
(L E D :4 T IM E S )
H O T
(L E D :7 T IM E S )
(L E D :9 T IM E S )
PANEL_VCC_ON
RECTIFIER
FE1.2V
DTV12V
SUB9V
SUB5V
SPEAKER(L)
BACK LIGHT SOS
A10
SUB1.5V
(DDR1.5V)
C.A.T.S. SENSOR
DCDC
USB2
POWER
CONTROL
V/Y/PB/PR
LVCORE1.2V
LVCC3.3V
EEPROM
CONTROL
TMDS DATA
ANALOG-ASIC
TMDS DATA
AUDIO
2.5V
REMOTE IN
V10
SUB_ON
C.A.T.S. SENSOR
STB5V
SOS DET
AV2
OPTICAL OUT
V
LINE
FILTER
SD I/F
LAN DATA
2.5V(FE)
STB+3.3V
SUB1.2V_D
USB DATA
SUB3.3V
(SIDE)
PFC
CONTROL
REMOTE RECEIVER
TUNER5V
SD CARD
MONITOR L,R
FLASH
L/R
EEPROM
AV SW
LVCC3.3V
AUDIO
PROCESSOR
SD CARD DATA
AMP
L/R
STANDBY
VOLTAGE
RECTIFIER
C.A.T.S. SENSOR
DCDC
PNL12V
mini_LVDS_ LEFT
TUNER5V
(SIDE)
PANEL
A02
TC04
SLOT
VGI_N/P
BACK LIGHT SOS
TC05
ASSY
ZWEI2
DCDC
STB_RESET
mini_LVDS_ RIGHT
PWM_PWR_ON
AUDIO
RECEIVER
AV3
BACK LIGHT ON
TC06
HDMI1
TC01
SPEAKER(R)
EEPROM
SUB1.2V_A
DTV12V
LVDD16V
POWER SUPPLY
STB5V
HDMI2
STB3.3V
AV1
OVP_DET
SIF
MONITOR V
STB5.8V
SUB
ON/OFF
NEUTRAL
OPERATION
BUTTON
BACK LIGHT ON
CPU BUS
I/F
HP
+5.8VS
RXD1
TXD1
A09
TMDS DATA
STM
SOUND SOS
RXD1
TXD1
VIDEO
PROCESSOR
SUB1.2V
POWER LED(R)
PWM_PWR_ON
DCDC
POWER LED
(SIDE)
SUB_ON
HDMI3
USB1
DTV12V
CPU BUS
HEADPHONE
P-BOARD
H_VDD8V
(SIDE)
SUB1.5V
LCD PANEL
LAN I/F
SUB_OP_5V
(USB5V)
SUB1.2V
VDD
P2
OUT
D/A
CONVERTOR
PNL12V
DCDC
V-BOARD
DTV12V SENSE
DIGITAL SIGNAL PROCESSOR
AC CORD
DVB_CVBS
GCLK
Peaks LDA2
ZW1.2V
LVDS DATA
LVDD16V
HDMI I/F
LVCC3.3V
DCDC
MONITOR
OUT
H_VDD8V
LEVEL SHIFTER
REMOTE RECEIVER
S01
LVDD16V
SUB5V
TUNER
USB5V
DCDC
LVDS DATA
PWM
LG TCON
PWM
RECTIFIER
VDD1_3.3V
GMA
A/D
CONVERTOR
BUCK_CONV
A15
CNAC
DCDC
SOS DET
SUB 3.3V SENSE
STB3.3V
A12
GenX8
LAN
DCDC
L
DCDC
V
USB
I/F
A-BOARD
+5.8VS
STB+3.3V
DTV12V
17V
R/G/B/H/V
OPTICAL AUDIO OUT
STB_RESET
SIF_OUT
DTV_L/R
Y/PB/PR,
R/G/B/H/V CVBS
DTV12V
CONTROL PANEL
TC-BOARD
LIVE
TIMING CONTROLER
DDR3
H_VDD8V
LVCORE1.2V
STB5V
PANEL
V
V
VDD1_3.3V
PROCESS
VOLTAGE
RECTIFIER
L/R
BACK LIGHT
POWER
CONTROL
174V
SUB5V
CN01,CN02
SUB9V
+12V
SWICH
RELAY
OPTICAL
DCDC
SOUND SOS
POWER LED
ZW1.2V
(D Chip)
mini_
LVDS
SUB 3.3V
STB_SUB5.8V
CLK
AUDIO_VCC
R
rDAC
KEYSCAN
DCDC
LVDS
SUB3.3V
L/R
PWM
CLOCK
GEN
NAND
FLASH
(A Chip)
FE1.2V
PC
LED BACK LIGHT
(LED:1TIMES)
COLD
(LED:4TIMES)
HOT
(LED:7TIMES)
(LED:9TIMES)
TX-LR32D25
34
9.2.
Detailed Block Diagram (1/3)
C O L D
H O T
G
R
+
NO
HOLDER
+
VCC
GND
OUT
NO
HOLDER
NEED HOLDER
+
+
NEED HOLDER
NEED HOLDER
BACK_LIGHT_SOS
PWM_PWR_ON
BACK_LIGHT_ON
PANEL_VCC_ON
STB5V
D560
D363
DTV12V
D5421
12V
D2500
P17V
D210,D211
D556
SUB_OP_5V
F301
D5425
D564
D565
D553
174V
D5422
D555
D5420
DTV12V
D554
L202
D557
SUB1.2V_A
D451
D5423
RM2500
PNJ4815M01
TV
1
2
3
D205
F101
D201
Q501
SUB1.5V(DDR1.5V)
F002
D403
D558
SUB1.2V_D
D5424
D653
D409
D353
D402
D559
D566
F401
SUB3.3V
D5426
F001
Q354B
SN2500
D452
174V
Q354A
STB_SUB5.8V
R003
D5427
12V
I352A
5.8VS
-
G
174V
ERROR DET
Q453
12
1
5
LINE
FILTER
1
RECTIFIER
#1 Anode
I351A
A10
I752
1
T401
10
+
V-BOARD
I501
I452
5.8V
I353B
SUB5V
9
D3A1-D3F1
POWER LED
L451
PWM
V OUT
S101
6
IC5300
V+
CN02
V_DET
7
LR OUT
ASSY
STB3.3V
2
Q4770,71
STB5V
5.8VS
DVB_CVBS
D358A
D755
SUB_ON
2
4
STB_SUB5.8V
5
Q454
SUB5V
174V
ERROR DET
D
C.A.T.S
PWM_POWER_ON
#2 Anode
11
R/G/B/H/V
13
#3 Anode
2
I3G1-I3I1/I3J1-I3L1
IC5220
A15
15
STB5.8V
ERROR DET
24
12
13
40
PC
OVP
I551
SOS
JK3304
S102
Q555
Q352A
LED CURRENT
CONTROL
+3.3V
PWM
OVP
1
PC-R
TC05
SUB_ON
IIC1
10
AV3
TUNER
1
+5V
BACK
LIGHT
ON
2
29
9
IC5280
CONTROL PANEL
CURRENT
CONTROL/DRIVER
IC5500
PFC
DCDC_CTL
PC-B
AV1_PB
CURRENT
CONTROL/DRIVER
IC3000
Y/PB/PR,
R/G/B/H/V
CVBS
(SIDE)
AV1_R
L003
MONITOR OUT
PC
AC IN
DET
Q352B
V2_R
TO
LED
BACK LIGHT
L352A
L353A
D3A2-D3C2/D3D2-D3F2
5
STB
5.8V
Q357
4A
AC250V
I301
LVDS DATA
SOS
REMOTE
D753
AV3_V
I401
3
47
D103
V IN
3
AV2_L
AV2
DTV
1
PHOTO COUPLER
[R(A-D)_0+/-)]
AV1_V
3
12
5V
[R(A-D)_E+/-)]
IIC2
P-BOARD
1
REMOCON
IC5200
LVDS DATA
V/Y/PB/PR
Q356
JK3301C
Q5241
V
9
ANT IN
I553
KEY
I453
8
POWER LED
D357A
Q351A
POWER SUPPLY
AV1_Y
#1
Cathode
C.A.T.S. SENSOR
V
PC-V
OVP DET
L/R
Q351B
#2
Cathode
DTV12V
D358B
SUB_ON
PHOTO COUPLER
12V
Q553
AC IN_ON
#4 Anode
SUB_ON
BACK LIGHT
SOS
V
I353A
S103
AV SW
BACK LIGHT
SOS
9
A-BOARD
PC-G
D357B
I201
TV
5.8V_ON
LED CURRENT
CONTROL
#4
Cathode
R_LED_ON
8
4
11
+1.2V
I402
PHOTO COUPLER
OPERATION
BUTTON
PWM2
CONTROL
+5V
TU2901C
AUDIO_VCC
V10
T301
4
JK3300
SUB_ON
AV1_PR
L/R
I3A1-I3C1/I3D1-I3F1
IC5501
RESONANCE
V OUT
13
SENSE
174V
SOS_ON
+1.5V
OVP DET
Q452
4A
AC250V
I351B
3
Q551
VCC
AV2
I354B
13
AC CORD
A02
SUB_ON
RELAY_ON
PHOTO COUPLER
VCC
SOS Latch
CONTROL
3
C.A.T.S
12V
2
AV2_V
PWM1
2
PWM
L/R
SENSE
1
AV1
3
4
5.8V
L/R
RECTIFIER
V2_L
12V ERROR DET
+5V
PHOTO COUPLER
CN01
V OUT
DTV12V
I552
PHOTO COUPLER
V2_V
D3G2-D3I2/D3J2-D3L2
D102
I352B
Q554
PHOTO COUPLER
AV3_L
V IN
L/R
4A AC250V
AV3
SUB_ON
BACK
LIGHT ON
AV2_R
L001
PC-H
3
RELAY
+1.2V
MAIN OUT
1
5
SOS
S01
SOS
D3G1-D3L1
+
5
SUB9V
Y/C/V
L352B
L353B
Q201
Q202
Q203
2A AC250V
SUB5V
AV3_R
BACK_LIGHT
_ON
-
PHOTO COUPLER
5
TUNER5V
I451
Q204
AV1
CNAC
P2
POWER
CONTROL
ERROR
DET
4
D
SOS
OVP DET
G
I751
5
Q355
2
AV1_L
LVDS DATA
STB5.8V
G_LED_ON
PHOTO COUPLER
SUB9V
SOS Latch
Q305
IC2952
PNL12V
7
10
A09
REMOTE RECEIVER
Q401
49
L401
7
SIF
Q556
1
46
I354A
3
Q301,Q302
#3
Cathode
18V
DIGITAL SIGNAL PROCESSOR
IIC2
5
7
9
11
13
15
17
19
LED DRIVE
LED DRIVE
TC06
COLD
HOT
TX-LR32D25
35
9.3.
Detailed Block Diagram (2/3)
SOUND_SOS
BACK_LIGHT_SOS
SUB_ON
G_LED_ON
KEY
PANEL_VCC_ON
BACK_LIGHT_ON
C.A.T.S_SENSOR
REMOTE
PWM_PWR_ON
SOUND_SOS
R_LED_ON
SUB_OP_5V
DTV12V
SUB5V
SUB3.3V
DDR1.5V
P17V
SUB3.3V
X8002
STB5V
IC8100
CLK
+3.3V
CN0100
JK8700A
SPEAKER_L
+5V
PWM-READY
STB+3.3V
+3.3V
Q4512
JK8800
GenX8
STMIIC1
A-BOARD
32kbit
BACK_LIGHT_ON
CN8850
BACK_LIGHT_SOS
HDMI IN3
OUT
1
BUS
CONTROL
AUDIO_VCC
HDMI_CEC
(Y/PB/PR,R/G/B/H/V CVBS)
IC5603
+1.2V_D
IC8921
EEPROM
DCDC-CTL
HDMI IN1
+3.3V
HDMI
5V DET0,2,3
RESET(PA-NRST)
R(+)
STM
MAIN_L/R
SPEAKER_R
SPDIF-OUT
RESET(PD-XRST)
C.A.T.S_SENSOR
SW_OFFDET
USB DATA
DDC_IIC2
MUTE
AUDIO
OUT
STB3.3V
10BASE-T/
27MHz
RESET(DTV-XRST)
ANALOG VIDEO DATA
DDC IIC
LAN
DATA
SW_OFFDET
HP OUT
DDR3
DIGTAL
SOUND_SOS_DET
Peaks LDA2
DDC_IIC0S
A/D
LAN
I/F
HDMI 5V DET0
+3.3V
VIDEO
PROCESSOR
NAND
FLASH
3.3V
LAN
TMDS DATA
CLOCK
PWM
IC8240,41
TMDS DATA
CLOCK
KEYSCAN
HDMI_CEC
SEL A/B
TMDS DATA
CLOCK
SEL A/B
STMIIC1
HDMI_CEC
(SIDE)
SOS DET
DC POWER CONTROL
SD DATA
(D Chip)
IC8950
D/A
OPTICAL
AUDIO OUT
IC8700
SOUND
DET
DTV+12V SENSE
G_LED_ON
DDC IIC
Peaks RESET
IC1101
IC8703
DIGITAL SIGNAL PROCESSOR
HDMI I/F
RECEIVER
SD
I/F
LAN DATA
D3300
VC27A
RXD1
TXD1
STBY
LVDS DATA
HDMI 5V DET2
X IN
X OUT
OPTICAL
AUDIO OUT
RESET
USB2
OVP
AUDIO AMP
AUDIO_VCC
SD DATA
LVDS DATA
L(-)
IC1100
PANEL_VCC_ON
IC5604
R_LED_ON
sLD_IIC2
27MHz
DCDC
JK4702
DDC IIC
HDMI 5V DET3
SOUND SOS
PWM
sLD_IIC1
HDMI_CEC_PU_ON
3
USB1
DTV_R
JK8701
IC2301
1Gbit
STBY
L(+)
IC8701
D/A
+1.2V_A
AUDIO
PROCESSOR
STB RESET
HDMI_CEC
CPU BUS
I/F
USB
I/F
SD CARD
+3.3V
DDR I/F
A12
100BASE-TX
IC8000
DDC_IIC0
CLOCK
GEN A
JK3300
ARC_OFF
HEAD PHONE
FOR
FACTORY
USE
SUB5V DET
SOS/RST/STB3.3V
SUB_ON
4
+5V
1
JK4700
(SIDE)
HDMI IN2
74MHz
NAND
I/F
DDC_IIC0
EEPROM
RXD1
TXD1
33MHz
CONROL
sLD_IIC0
sLD_IIC1
DTV_L
DDC_IIC2
SIF_IN
HDMI
DDC_IIC3
Q4513
IC4700
TMDS DATA
CLOCK
SPDIF-OUT
+5V(USB)
DDC_IIC3
USB
DATA
&SWITCH
sLD_IIC1
16kbit
IC4701
AVDD+3.3V
(A Chip)
2
EQUALIZER
JK4703
+5V
AVDDH+3.3V
(A Chip)
SOUND_SOS
(A Chip)
SUB+3.3V SENSE
R(-)
PWM PWR ON
3
IC5000
REMOTE
(SIDE)
5
7
9
11
13
15
17
19
ANALOG
VIDEO
I/F
(LE
D
:9T
IM
E
S
)
(L
E
D
:1
T
IM
ES)
(L
ED
:4
TI
M
E
S
)
(L
E
D
:7
T
IM
E
S
)
(LED:9TIMES)
(LED:1TIMES)
(LED:4TIMES)
(LED:7TIMES)
TX-LR32D25
36
9.4.
Detailed Block Diagram (3/3)
VCOMRFB
VCOMLFB
VCOMR
VCOML
H_VDD8V
174V
Q9201
ZW3.3V
PA9001
X9201
174V
PNL12V
PNL12V
ZW1.2V
X9001
H_VDD8V
LVDD16V
VDD1_3.3V
Q9203
LVCC3.3V
174V
LVDD16V
LVCC3.3V
3
TO
PANEL
CONTROL
R1AM/P
FLASH
CTRLP
VGI_P
3
9
L_IIC
XO
8
28
IC9208
3
OUT
OUT
VCOM
25
-
+
+
52
21
+
-
TIMING CONTROLER
L_IIC
+V
TC-BOARD
59
CN02
Q9204
Q9202
LLV0+/-
SI/SO
Q9205
VGI_P
TC01
5
9
VDD_EVEN
+1.2V
A15
40
RESET
32Kbit
IN1-6
LLV6+/-
PWM_POW_ON
VGL(-10V)
50
25
48
51
37
D9205
12
LVDS DATA
VDD_ODD
+3.3V
OUT1-6
TC06
34
XI
IC9005
3
PANEL
Z_RXAN0/P0-Z_RXEN0/P0
LG TCON
H_VDD8V
VGH1
LED
BACK LIGHT
ZWEI2
#4 Anode
3.3V
mini_LVDS_RIGHT
3
RXAN0/P0
VDD_EVEN
LMLV0N/P-LMLV5N/P
IC9006
IC9203
+1.2V
VDD_
CONTROL
OUT
Z_IIC
IC9003
1
51
VGI_N
SPI
10
TC04
VDD_EVEN
R1EM/P
IC9201
VGI_N
CLK1-6
10
LVDD16V
48
R4AM/P
49
VIN
39
41
LVDS_EVEN
XI
CLK1-6
+3.3V
TO
PANEL
CONTROL
VSD
LVDD16V
mini_LVDS
CN01
VGH2
8
#3 Anode
+1.2V
CONTROL
P2
GMA3,4,6,7,
12,13,15,16
R4AM/P
VGL_
CONTROL
OUT9
LCD PANEL
TC08
IC9004
36
RLV0+/-
D9202
5
R4EM/P
ZW1.2V
VDD1_3.3V
CTRLN
#1 Anode
IC9205
IIC1
IC9204
OENB
#1
Cathode
Z_IIC
LVDD16V
IC9206
VGL_I
OUT8
rDAC
13
R1EM/P
#2
Cathode
FOR LEFT
PWMA
FB
58
NRST
2
40
42
GMA3,4,6,7,
12,13,15,16
4
1
#4
Cathode
SWB
VIN
VDD_ODD
21
TC05
27
4
SW
FBB
EEPROM
VGL
53
RMLV0N/P-RMLV5N/P
FBP
IC9202
#2 Anode
SW
13
#3
Cathode
11
PNL12V
TO
P-BOARD
XO
IC9207
VDD_ODD
R1AM/P
Q9003
9
GCLK1-6
IIC
12
13
+3.3V
41
47
PANEL
VSENSE
RXEN0/P0
22
IN8
DCDC
RXAN1/P1
LVCC3.3V
VS
TC07
LVDS DATA
24
FBN
LVDS_ODD
RLV6+/-
PMW
BACK_CONVERTER
10
16
IIC
17
VDD_ODD
44
VDD_EVEN
45
CLK1-6
VCOM BOOST
15pin
DISCHARGE
IN9
20
R4EM/P
LEVEL SHIFTER & DISCHARGE
Q9001
5
6
SI/SO
VGH
(25-30V)
12
LVCC3.3V
FB
11
H_VDD8V
LVCORE1.2V
19
PNL12V
FOR RIGHT
1.2V
Z_RXAN1/P1-Z_RXEN1/P1
RXEN1/P1
VGL_I
mini_LVDS_LEFT
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