Panasonic TC-32LX50 / TC-26LX50 Service Manual ▷ View online
8 Block Diagram
8.1. Block Diagram (1 of 4)
+
+
-
+
L.F
Q7208
D7204
Q7211
Q7210
D7152
D7704
T7151
2 P1
3 P2
6
S1
7
S2
9
S3
Q7702
D7154
Q7401
Q7217
Q7214
D7161
D7220
Q7218
Q7301
Q7302
D7404
Q7212
D7208
Q7501
D7304
D7155
Q7203
D7302
D7303
D7214
Q7504
D7151
D7401
PC101
D7203
D7153
D7601
Q7402
D7703
D7602
Q7219
D7403
Q7508
D7206
D7004
D7402
F7001
1
2
3
4
Q7701
D7156
D7301
Q7220
RL7002
*
*
RL7001
*
*
D7212
Q7220
D7603
D7607
Q7601
D7605
D7604
D7608
D7606
1
LF7004
23
ERROR DET
MAIN+9V ON/OFF
SUB+9V ON
Q7502
IC201
4
+9V
LINE FILTER
O.V.P, DET CIRCUIT
1
24V
7
CN101
20
5
21
FEED BACK
SHORT DET
3.3V OVP
AC RELAY
19
17
13
AP10
3
16
PANEL 5V ON/OFF
24V
+5V
IC7701
7
16
24V_ON
AP5
24V
SOUND+18V ON
REMOTE TRANS
AP2
SUB+5V ON
Q7503
CN3
HOT
COLD
1
SOUND+18V/SUB+5V
5
CN203
DC+
3
19
IC7301
3
SUB+5V DET
Q104
SWITCHING TRANS
+24V
LF7002
MIX
LF7003
20
21
5V OVP
22
HOT
Q7204-Q7027
(INV)
CN201
11
10
SOUND_VCC OVP
MAIN+9V
RL201
MAIN+5V
2
AC RELAY
PANEL 5V
18
14
IC7401
Q201
7
Q202
DC DC ON/OFF
6
22
6
PANEL 5V ON
2
IC101
COLD
POWER CONTROL
14
23
8
1
12
7
6
24V OVP
AC CORD
PANEL_Vcc OVP
24V
10
6
DG5
MAIN+3.3V/SUB+9V
DET:AC RELAY OFF
AP1
4
3
MAIN+3.3V ON
AC RELAY
5
9V OVP
Q102
4
+5V
7
T101
SOS DET
+3.3V
TP_1
18
7
Q101
AP3
3
Q103
MAIN+5V ON/OFF
2
/+9V(S)
4
4
AP4
+30V(BT)
AC RELAY
POWER UNIT
PANEL 5V ON
5
AC RELAY
+18V
Q106
TP_2
Q105
DG4
1
H1
AP-BOARD
RUSH RELAY
BT_30V
PANEL_5V
SUB_9V(PACK)
SUB_9V(PACK)
SUB_9V
MAIN_3.3V
PANEL_5V
MAIN_3.3V
MAIN_3.3V
MAIN_9V
PANEL_5V
STB_7V
AC_ON
MAIN_5V
MAIN_5V
ZERO_X_DET
24V_ON
PANEL5V_ON
MAIN_ON
SOS_1
SUB_5V
SUB_5V
SUB_5V
HOT
COLD
ZERO_X_DET
MAIN_ON
UNREG_24V
STB_7V
SOUND_17.7V
SOUND_17.7V
MAIN_9V
SUB_9V
BT_30V
STB_PS
SUB_5V
DC DC ON/OFF
DC DC ON/OFF
5
8
9
7
D
E
2
6
C
A
B
1
3
4
F
RECTIFIER
TC-32/26LX50 Block Diagram (1 of 4)
TC-32/26LX50 Block Diagram (1 of 4)
TC-32LX50 / TC-26LX50
21
8.2. Block Diagram (2 of 4)
R
G
C
L
R
G
Y
L
R
V
L
G
R
PUSH
+
+
V
V
MONITOR OUT
V1
V2
COMPONENT2
COMPONENT1
C
Y
V
R
L
R
L
Pb
Pr
C
Y
R
Pb
R
R
Y
L
Pr
L
Y
L
V2-R
MAIN-ON
SDA0A
C
MON-L
Y
TV(L)
KEY
AFT
D2-L
V3-R
LED-G
V1-S
V3-Y
SCL0A
LED-R
PS
HDMI-L
MON-R
V
PB(M)
V2-V
SDA0B
V2-Y
SW-DET
D2-PB
V2-S
SRQ
RM
V1-L
MON-L
HDMI_L
PB(M)
SCL0B
STB_RST
AI
D1-R
SCL0A
V3-L
KEY
HDMI_R
V1-R
AMUTE
SW
-DET
L
V1-V
Y(M)
V3-L
MAIN-SW
D2-R
MON-DEF
RM
V2-L
D1-L
V2-L
LED-R
V2-C
PR(M)
Y
AI
HP-L
SDA0A
V1-C
R
SCL1
C
HDMI-R
LED-G
V
MON-V
V3-V
SCL0A
L
SDA0A
S_DET
PR(M)
L
V3-C
HP-R
D1-R
D2-R
SD
A0A
HP-DET
D1-L
D2-Y
D1-PR
SCL0A
V1-L
V1-Y
V3-R
R
TV(R)
D1-PB
SD
A1
V2-V
MON-R
SCL1
V3-S
R
D1-Y
SD
A0B
D2-L
SCL0B
V1-R
D2-PR
V2-R
V2-Y
SDA1
Y(M)
V1-Y
AMUTE
MON-V
V1-S
R
MSD
A0B
V1-V
L
MSCL0B
V2-S
S_DET
D2-PB
D2-PR
D2-Y
D1-Y
D1-PB
D1-PR
V3-S
V3-V
V3-Y
A-HDMI-L
A-HDMI-R
A-HDMI-L
A-HDMI-R
V1-C
V2-C
V3-C
TV(V)
TV(V)
SP_MUTE
AFT
TV(L)
TV(R)
HP-L
HP-R
HP-DET
Q1004
R3826
SN1001
2
3
4
SW3807
R3823
SW3805
JK3801
R
R-G
L
L-G
SW
V
V-G
C-G
C
Y
Y-G
G
G
3
2
1
8
9
6
7
3
2
1
5
4
Q2004
SW3804
D1008
SW2801
R3822
Q1002
C2802
RM1001
1 V
OUT
2GND
3VCC
R3825
SW3806
Q2002
SW3803
Q2012
Q2014
Q3038
R2089
C2801
JK3002
V
L
R
G
C
Y
G
Y-G
C-G
G
V
L
R
G
C
Y
G
Y-G
C-G
G
V
L
R
G
Y
PB
PR
G
L
R
G
Y
PB
PR
G
L
R
G
JK3003
L
L-G
R
R-G
Q3029
OUT
V
ADJUST
(SP MUTE)
H-BOARD
6
14
PB
PR
13
3
IC3007
24
25
+9V(S)
26
2
3
10
11
C
V
2
5
MONITOR
4
MUTE(R)
MUTE(L)
VIDEO2
Q3027
40
1
H3
Y
14
PR
R:STAND-BY
G:POWER ON
+9V(S)
S DET
V
HDMI
R
28
29
30
Q3039
SOUND CONTROL
HP MUTE
AMP
10
15
24
TU3001
CH
G4
IC3002
26
28
1
29
2
3
30
AMP
H4
1
2
9
3
10
5
11
Q3034
PR
7
Q3036
8
6
9
1
10
11
14
K2
MONITOR
18
Q3032
3
S DET
21
M S CLOCK0B
R
24
HDMI R
L
S
D
ATA
0
B
25
VIDEO2
S DATA0A
Y
Q3025
R
4
COMP2
25
Y
S CLOCK0B
+5V(ADJ)
9
MAIN PR
7
K-BOARD
G1
1
17
M S D
A
T
A0B
L
R
R
AI SOUND
AUDIO SW
17
7
18
VOL+
20
VOL-
MAIN
AFT
32
HDMI L
MAIN PB
11
H2
L
MUTE CONTROL
Y
R
S CLOCK0A
S DATA0A
MAIN+5V
MAIN+5V ON/OFF
C
COMP2
L
OUT
+5V(M)
6
7
3
15
MTS
30
DG3
DG2
2
3
5
7
V1
3
2
EQ
L
AGC
HEADPHONE
L
TV/VTR
IC3001
SURROUND
TREBLE
19
VIDEO SW
HP DET
R
L
G-BOARD
VIDEO1
+5V(M)
S DATA0A
MUTE CONTROL
L
BASS
HP AMP
COMP1
8
PB
14
C/PB
21
VIDEO3
MONITOR OUT
5
V/Y
7
S CLOCK0A
8
R
COMP1
R
TV
VIDEO1
TV
IC2004
FRONT TERMINAL
V
VIDEO3
REMOTE CONTROL SENSOR
POWER LED
IC2001
2
5
C.A.T.S. SENSOR
BUFFER
22
R
18
21
22
MONITOR OUT
L
L
MAIN Y
+5V(ADJ)
V-BOARD
G2
POWER SW
2
BALANCE
S CLOCK0A
CH
MAIN_SW_DET
STB_PS
R_LED
G_LED
STB_3.3V
SUB_5V
AI
REMO
TE
Video2
Component1
Monitor Out
Component2
Video1
C
S DET
V
VIDEO3
Y
A-HDMI
R
L
HDMI analog
IIC
MATRIX
FILTER
DEMODU
OUT
MAIN
+9V(M)
16
SP_MUTE
STB_RST
A_MUTE
A_MON_DEF
STB_3.3V
SW_OFF_DET
MAIN_SW_DET
AI_SENSE
REMO
TE
KEYSCAN
G_LED
R_LED
SRQ
SD
A0A
SCL0A
SD
A1
SCL1
G_LED
STB_PS
AI_SENSE
HP_ROUT
HP_LOUT
HP_DET
Y
C
V
L
KEYSCAN
REMOTE
STB_3.3V
R_LED
S_DET
R
MAIN_SW_DET
SUB 5V
16
15
13
12
10
18
17
14
11
13
1
5
4
6
14
11
8
2
9
12
10
3
7
TC-32/26LX50 Block Diagram (2 of 4)
TC-32/26LX50 Block Diagram (2 of 4)
REAR TERMINAL
TC-32LX50 / TC-26LX50
22
8.3. Block Diagram (3 of 4)
G
G
AI_SENSE
STB_RST
KEY_SCAN
SW_OFF_DET
MSCL0B
MAIN_ON
PS
ATF
MON-DET
SCL0B
SW
-DET
SCL2
SCL1
SDA0B
SDA2
HPD
AMUTE
P
ANEL_VCC_ON
SDA1
SDA0A
M_SCL0B
HDMI_RBSTNSS
SD
A0A
24V_ON
HDMI_INT
JTAG_TRST
MPB
JTAG_I_TDO
A_DAC_PD
MP-SRQ
HDMI_A_MUTE
TV_SOS
JTAG_TMS
HDMI_RST
A_MON_DEF
HDMI_5V_DET
JTAG_TDO
MAIN-ON
JTAG_TCK
M_SDA0B
STB_RST
SRQ
MSD
A0B
R_LED_ON
SDA1
SCL1
G_LED_ON
MAIN_SW_DET
ZER
O_X_DET
A
C_ON
REMOTE
MY
SCL0A
SCL0A
SP_MUTE
SP_MUTE
MPR
H12
Q2016
Q2007
Q2005
Q3058
Q5003
Q5002
Q2009
Q4080
Q2006
R2049
JK5001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
R2024
D3018
Q4077
Q2013
1
DEFFET
2
MONITOR
AMP
1
+3.3V(M)
12
16
AMP
10
11
7
31
17
Q4007,Q4008
30
H-BOARD
MAIN SW DET
20
23
27MHz
17
D/A
200Hz
DG10
IC2003
Q4038-Q4041
+3.3V
6
10
4
M S D
A
T
A0B
M S CLOCK0B
19
JTAG-TMS
A/D CONV
20
36
(10bit)
SCL0B
SOM
HDMI RESET
HPD
37
IC4069
MAIN+1.2V
Q4079
26
24
3.3V_SD
A
MAIN+1.8V
3.3V_SCL
A/D
6
4
1
2
2
+5V(M)
+1.8V
CONV
DDC
30
Q5004
DG5
MCLK
VDD
1bit
IC2002
AUDIO
LPF
ESCL
ESD
A
31
58
SCL
HPDT
IC2005
500Hz
4
HPF
4
MUTE
DV-BOARD
H15
19
500Hz
+3.3V(M)
MUTE
7
+1.8V(M)
60
14
24
55
CLK-
D0-
D2+
IC4041
D2-
DG3
JTAG-TCK
7
Q4057-Q4061
HP/VP/CLK
HDMI AUDIO
Q5001
IC5017
MUTE
IC5003
HMDI I/F
HP/VP/ENB
CLK
16
+3.3V
VIDEO
DECORD
M S DATA0B
S CLOCK0B
53
+5V(ADJ)
29
H1
Y:10bit
3
HDMI 5V DET
+1.8V
30
39
BUFFER
22
HDMI INT
H14
7
SOM
23
STB+3.3V
H2
1bit
10
DV15
HDMI R
S DATA0B
DG-BOARD
S CLOCK2
+1.8V
S DATA2
BOARD TEST
FILTER (L)
HPF
HDMI INT
AMP
5
EXTCK
AMP
MAIN PR
AFT
HDMI L
SDA0B
SCL0B
Q4078
MUTE
IC2006
D1-
+9V(M)
D1+
VDD
21
HDMI IN
+5V
IC4068
5
19
IC2008
SP
DDC RESET
4
13
IC4001
18
22
4
SDO
28
11
2
59
EXTCK
3
SP
+9V(M)
15
IC4002
AD+3.3V
14
D0+
EEPROM
RESET
+1.8V(M)
15
7
STB RESET DET
ZERO X DET
5V<->3.3V
Hi : MUTE
Audio MUTE and 5Vdet
21
8
31
37
16
IC4005
H3
DG4
HDMI HS
SDA0B
6
DG2
AP5
7
F
A
CT
OR
Y USED
5
9
16
19
IC4049
11
12
AMP
13
2
20
AMP
34
22
26
9
+1.8V
JTAG-TD0
17
27
JTAG-TDI
18
40
5
18
VDD
28
AMP
HDMI DATA
DV15
SCK
13
+3.3V(M)
AMP
NIRQ
12
29
HDMI L
34
23
AP4
HDMI DATA
D/A
CABLE IN -> Hi : Norm
CABLE OUT -> Low : Mute
35
CLK
WOOFER(L)
Y:10bit
VDD
LPF
HDMI VIDEO
MUTE
SQUAWKER(R)
59
21
20
38
DDC DATA
11
HDMI VS
CLK+
HDMI R
60
32
HDMI RESET
UV:10bit
9
10
+3.3V(M)
JTAG-TRST
+9V(M)
3
IC4065
2
MAIN PB
MAIN Y
+5V(ADJ)
MUTE
+1.2V
22
200Hz
+1.8V
20
IC5015
AP1
SRQ
S
D
ATA
0
A
+5V(ADJ)
26
S CLOCK0A
55
58
33
UV:10bit
22
HDMI CLOCK
18
17
HDMI VIDEO
24
MAIN+1.8V
+5V(M)
NIRQ
WS
M S CLOCK0B
SQUAWKER(L)
53
AMP
4
HDMI AUDIO
28
16
Low : Detect HPD5V
HOT PLIG DETEDT
A MUTE
1
+3.3V(AD)
FILTER(R)
ZERO X DET
IC2007
WOOFER(L)
SQUAWKER(L)
WOOFER(R)
WOOFER(R)
SQUAWKER(R)
PROCESS
PROCESS
CONTROL
MUTE
SP MUTE
25
SRQ
SDA0A
SP_MUTE
STB_RST
A_MUTE
A_MON_DEF
STB_3.3V
SW_OFF_DET
MAIN_SW_DET
AI_SENSE
REMOTE
KEYSCAN
G_LED
R_LED
SCL0A
SDA1
SCL1
SOUND_17.7V
SOUND_17.7V
MAIN_9V
SUB_9V
BT_30V
STB_PS
SUB_5V
ZER
O_X_DET
MAIN_ON
UNREG_24V
STB_7V
STB_7V
AC
_
O
N
MAIN_5V
MAIN_5V
ZER
O_X_DET
24V_ON
P
ANEL5V_ON
MAIN_ON
SOS_1
SUB_5V
SUB_5V
SUB_5V
SUB_9V(P
A
CK)
SUB_9V(P
A
CK)
SUB_9V
MAIN_3.3V
P
ANEL_5V
MAIN_3.3V
MAIN_3.3V
MAIN_9V
P
ANEL_5V
P
ANEL_5V
CC
Q1114
Q1112
Q1109
27
21
23
20
25
19
26
22
24
5
4
6
1
7
2
3
13
8
9
12
10
14
11
32
24
27
30
39
40
22
29
36
37
34
23
31
28
26
35
33
38
21
25
TC-32/26LX50 Block Diagram (3 of 4)
TC-32/26LX50 Block Diagram (3 of 4)
TC-32LX50 / TC-26LX50
23
8.4. Block Diagram (4 of 4)
SDA0A
AC_ON
M_SD
A0B
AI_SENSE
SCL2
SD
A0A
AFT
TV_SOS
SCL0A
A_MUTE
REMOTE
SDA1
G_LED_ON
R_LED_ON
SRQ
HPD
HDMI_INT
SCL1
SDA0A
SRQ
SCL0A
M_SCL0B
MAIN_ON
SW_OFF_DET
SD
A1
KEY_SCAN
SCL2
SCL2
A_DAC_PD
A_MON_DEF
PANEL_VCC_ON
HDMI_RBSTNSS
MAIN_SW_DET
SDA2
MSCL0B
HDMI_A_MUTE
MSDA0B
SCL0A
MP-24V_ON
ZERO_X_DET
SDA2
SCL1
SD
A2
HDMI_RST
SP_MUTE
SCL2
SDA2
X1101
X4002
27MHz to ADV7403/GC3E
+3.3V(M)
14
+3.3V(M)
PLL+1.2V
+5V(ADJ)
S CLOCK2
GEN
FLASH MEMORY
RX0(-)
28
74.25MHz
108MHz
MAIN+2.5V
17
DG6
IC4054
RX-CLOCK(+)
27
S DATA0A
PANEL+5V
AI
BOARD TEST
128M
+24V ON
G-LED
+2.5V
+2.6V(DDR)
108MHz to 4L(FRCLKIN)
PIXEL CONV.
PANEL+5V
LVDS DRIVER
IC4042
3
DG12
+1.2V(PLL)
6
SUB+9V SENSE
S CLOCK0A
AFT
RESET
REMOTE
2
IC1101
5
7
INPUT
IC4033
(16bit)
+2.6V(DDR)
DG-BOARD
9
M S CLOCK0B
IC4051
74.25MHz to 4L(EXCLKIN)
S
D
ATA
1
12
MAIN ON
R-LED
RX2(-)
XO
SW OFF DET
DDR
XI
NR
HDMI A MUTE
+3.3V(PLL)
15
RX-CLOCK(-)
ZERO X DET
+3.3V
RESET ( HDMI )
PANEL 5V ON
+3.3V
I/F
RESET
7
4
SRQ
5
EEPROM(AI)
MAIN+9V SENSE
IC1106
+1.8V(M)
5
DIGITAL
+3.3V(M)
BACKLIGHT AI
OSD MIX
S DATA2
WP
FACTORY USED
HOT PLUG DET
PWM OUT
TO LCD PANEL
RX3(-)
A MON DET
M S DATA0B
TV SOS
IC4055
PANEL+5V
STB+3.3V
+3.3V(M)
AI SENSE
FACTORY USED
MAIN SW DET
(GC4PRO)
+5V(ADJ)
RESET(GC4)
3D
1
HDMI_RBSTNSS
RX0(+)
IC4047
2
S
D
ATA
0
A
S CLOCK2
2
S CLOCK1
S CLOCK1
4
PANEL+5V
+2.6V
PANEL I/F
S
D
ATA
2
18
SRQ
PANEL+5V
INVERTER SOS
A D/A PD
(GC4L)
DDR
S DATA1
ADDRESS
5
8
STB+3.3V
+1.2V(M)
95.5MHz to 4PRO(EXCLKIN)
VIDEO PROCESSOR
26
CLOCK GEN
S DATA2
EEPROM
RESET
BOARD TEST
RX1(+)
RESET
11
A MUTE
27MHz
VIDEO PROCESSOR
RX3(+)
DDR+2.6V
81MHz to 4PRO(VCOIN)
DG13
30
CPU BUS
RESET
STB+3.3V
MEMORY
PLL+3.3V
DATA
IC1104
108MHz to 4PRO(FRCLKIN)
6
29
RX2(+)
SRQ
IC4044
M S D
A
T
A0B
KEY SCAN
RX1(-)
CLOCK
S CLOCK0A
+1.2V
INVERTER ON
IC4057
AC_ON
1
MICOM
HDMI INT
6
SUB+5V SENSE
IC4067
I/F
4
IC4052
M S CLOCK0B
IC4048
OSD
S CLOCK2
RESET
Y/C
I/P CONV.
MIX
RESIZE
GAMMA
SP_MUTE
OSD DATA
(16bit)
(16bit)
OSD OUT
H/V/CLK
INV_PWM
CURRENT
INV_ON
INV_SOS
TO LCD PANEL
(INVERTER)
CVBS0
+2.5V(M)
95.5MHz(EXCLKIN)
108MHz(FRCLKIN)
81MHz(VCOIN)
EXTCK
S DATA2
S CLOCK2
34
33
32
30
31
28
35
29
36
37
35
39
30
27
29
34
38
36
28
40
31
33
32
26
22
21
23
24
25
DG7
TC-32/26LX50 Block Diagram (4 of 4)
TC-32/26LX50 Block Diagram (4 of 4)
TC-32LX50 / TC-26LX50
24
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