Panasonic TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P Service Manual ▷ View online
10.5. Power (2/3) Block Diagram
D1005
D1002
Q1001
RM1001
VOUT
GND
VCC
Q1004
Q1003
SN1001
D3021
D3023
MAIN5V
Q4050
Q4052
Q4053
Q4049
D1104
H1
DG5
DG4
13
3
20
8
22
14
10
4
9
21
17
17
3
4
11
18
2
7
16
19
23
10
22
23
21
15
9
7
8
3
17
18
H5
SOUND 16V
3
1
2
SOUND 16V
SOUND 16V
SOUND 16V
4
5
SOUND 16V
H3
DG3
26
27
31
36 38
LED R
STB 3.3V
SOS2
AI SENSOR
REMO
TE
10
15
3
5
14
AMP
8
VCC
IC2302
IC2303
VCC
AMP
8
5
4
G5
3
2
1
SQ AMP(L)
IC2500
5
VDDA
18
VDDP
WF AMP(L)
IC2501
5
VDDA
18
VDDP
SQ AMP(R)
IC2502
5
VDDA
18
VDDP
WF AMP(R)
IC2503
5
VDDA
18
VDDP
Optica AI
V
REMOTE
AI SENSOR
1
3
7
LED R
STB LED
6
Red
Amber
Remote
V1
10
REC LED
SUB 5V
2
STB 3.3V
5
2
1
3
7
6
G1
10
5
STB LED
4
REC LED
8
REMOTE
AI SENSOR
16
20
17
LED R
G4
19
2
SUB 5V
STB 3.3V
G
8
17
16
20
4
H4
19
2
IC3006
16
SAO1
VCC
12
EX.I/O
H2
DG2
17
24
REC LED
KEY MATRIX
KEY SCAN
21
21
15
+B
2
3
TU3201
BTL
TUNER
BM
8
KEY SA
CN
33
IC2101
6
HP AMP
P/SW
VCC
1
MSP 8V/MSP 5V
SOS2(L:ABNORMAL)
Q3008,Q3009
SOS DET CIRCUIT
SUB9V
VCC
AMP
AMP
IC2102
IC2104
8
VCC
8
6
AUDIO SW
VCC2
VCC1
IC2105
5
VCC
6
TV/DVB SEL
IC2111
IC2112
6
VCC
TV/DVB SEL
SWITCH
IC3001
IC3002
3
VCC
VCC
3
SWITCH
3
VCC
SWITCH
IC3004
VCC1
IC3005
VIDEO SW
47
VCC2
8
VCC3
57
ON/OFF
VO
MSP 5V
1
IC2107
VIN
2
3
VO
6
RESET
IC2108
VDD
2
3
IC2103
1
IN
OUT
MSP 8V
DVSUP
AVSUP
AVSUP
12
39
AHVSUP
66
65
13
DVSUP
MSP
IC2106
11
H
MAIN 5V
BT 30V
MAIN 3.3V
SOS1
SUB 9V
SUB 5V
SUB 9V
MAIN 9V
A 9V
MAIN 3.3V
PANEL 5V
MAIN ON
SOUND 16V
MAIN 3.3V
STB 5V
MAIN 5V
AC ON
PANEL5V ON
SUB 5V
SUB 5V
SOUND 16V
SOUND 16V
MAIN 9V
MAIN 5V
PANEL 5V
SUB 9V
PANEL 5V
24V DET
MAIN 3.3V
24V ON
SUB 5V
SUB 9V
STB LED
A 9V
SUB 5V
SUB 5V
SUB 9V
SUB 5V
SUB 9V
SUB 9V
14
DG1
53
52
51
13
57
54
VC
VO
STB 2.5V
2
IC1103
VIN
1
3
4
VIN
3
ON/OFF
STB 3.3V
IC1110
5
VO
5
IC1117
VCC
INVERTER
14
Q-LINK SEL
IC1105
VCC
VCC
24
5V<->3.3V
IC1109
13
EX.I/O
SAO2
VCC
IC1106
16
BYTE
FLASH MEMORY
37
VCC
47
IC1115
IC1114
1
SDRAM
VDD
VDDQ
3
14
9
VDDQ
VDD
49
43
VDDQ
VDDQ
53
42
VDD33-3
VDD33-4
69
61
VDD33-5
VDD33-6
14
VDD33-1
VDD33-2
32
VDD33-7
106 VDD33-8
85
21
VDD25-1
VDD25-2
111 VDDA-1
87
116 VDDA-2
119 VDDA-3
123 VDDA-4
IC1104
MICOM
VOUT
IN
AD 3.3V
2
IC4049
OUT
4
3
63
AVDD
48
PVDD
47
PVDD
1
IC4041
5
VDD
VOUT
1.8V
AD
IC4005
18
DVDDIO
DVDDIO
6
DVDD
DVDD
12
39
DVDD
90
VIN
VOUT
OSD AD 3.3V
1
IC4008
VCONT
5
3
VDD
VDD
11
21
VDD
2
OSD AD
IC4012
5
BUFFER
IC4014
VDD
VDD
VDD
49
VDD
105
116
35
VDD
VDD
VDD
53
VDD
68
72
XSM
XTST
82
VDD
89
90
VDD
92
5
VDD
VOUT
1.2V
1
IC4044
5
VDD
VOUT
1.2V
1
IC4061
IC4054
GC4PRO
AVDD
CLOCK GENE.
2
VDD
14
IC4051
VC
VO
DDR 2.6V
2
IC4048
VIN
1
3
VDDQ
25
21
VDDQ
VDDQ
DDR CLK
VDDQ
VDDQ
8
18
11
VDDQ
IC4080
4
2
RESET
IC4063
VDD
VIN
EN
MAIN 1.8V
IC4025
2
SW
1
5
VIN
EN
MAIN1.2V
IC4024
2
VO
1
7
8
VIN
8
IC4052
VCC
EEPROM
IC4057
GC4L
CTL
OUT
MAIN 2.5V
2
IC4042
VCC
1
4
9
66
34
26
VCC
LVDS VCC
PLL VCC
VCC
LVDS TX
IC4033
MAIN 1.2V
DDR 2.6V
MAIN 3.3V
1.2V
1.2V
MAIN 2.5V
79
PANEL5V ON
78
92
AC ON
24V ON
94
MAIN ON
124
KEY SACN
REMOTE
97
80
127
5
16
REC LED
LED R
SOS
AI SENSOR
DDR 2.6V
IC4055
DDR
MAIN 1.8V
MAIN 3.3V
INV PWM2
INV ON
3
DG6
6
5
4
2
INV PWM1
INV SOS
CURRENUT
TO
LCD PANEL
(INVERTER)
TO
LCD PANEL
DG7
31
PANEL 5V
PANEL 5V
30
PANEL 5V
29
PANEL 5V
28
PANEL 5V
27
CURRENT
INV PWM1
10
SW3
97
INV ON
10
EEPROM
2
RESET
IC1108
VDD
VCC
8
IC1107
11
MAIN SENSE
SUB SENSE
SOS1
SOS2
24V DET
12
DG
LXD50 ONLY
15
13
12
8
11
9
14
10
TX-32/26LXD50, TX-32/26LX50F/P
Power (2/3) Block Diagram
Power (2/3) Block Diagram
TX-32/26LXD50, TX-32/26LX50F/P
Power (2/3) Block Diagram
Power (2/3) Block Diagram
TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P
29
10.6. Power (3/3) Block Diagram
A9V
3
2
FB
DC-DC CONV.1.2V
1
8
PVIN
VOUT
1
8
SW
VIN
4
INV
3
2
FB
DC-DC CONV.3.3V
PVIN
IC8023
AVR +1.8V
IC8864
1
+2.5V
7
IC8024
2
4
CTL
VIN
IC8034
AVR +2.5V
VOUT
1
SW
VCC
VIN
SUB 9V
4
INV
XV
2
15
3.3V
FACTORY
16
FOR
CN8202
USE
3.3V
(JTAG I/F)
3.3V
FACTORY
1
XV04
+5V
FOR
USE
35
PGAVCC3.3
VDD3.3V
22
8
VDD3.3V
IC8003
COFDM DEMODULATOR
44
VDD3.3V
52
VDD3.3V
VCCA1.8
3
28
VDD
VDD
VDD
13
39
DVCCA1.8
2
VDD
61
VCCXTAL1.8
57
VCC
BUFFER
20
IC8404
BUFFER
VCC
20
IC8408
BUFFER
VCC
20
IC8409
BUFFER
VCC
20
IC8410
BUFFER
VCC
20
IC8411
BUFFER
VCC
20
IC8412
BUFFER
VCC
20
IC8412
DATA BUFFER
IC8402
23
VCCB
1
VCCA
24
VCCB
IC8401
52
Vpp1,Vpp2
VCC
6
OUT
JK8401
18
17
(COMMON
INTERFACE)
51
CI SLOT
8
OUT
7
CARD 5V
IN
IC8019
64M CPU FLASH ROM
VIO
VCC
47
37
JK8201
28
SUB 5V
SUPPORT
84
3.3V
27
SLOT
CARD
SUB 5V
82
29
81
3.3V
30
83
IC8042
RESET
IC8043
2
VDD
RESET
VDD
2
14
P/S
VDD
9
IC8029
AUDIO DAC
IC8031
OP AMP
8
VDD
SUB 9V
13
A 9V
SUB 5V
SUB 5V
14
54
SUB 9V
57
SUB 5V
XV01
52
51
53
SUB 9V
3.3V
1.2V
IC8013
HDSL PEAKS_Lite
DVB TUNER
ANT_V_SUPPLY
TU8001
1
7
V_SUPPLY
LXD50 ONLY
18
22
21
20
19
16
17
23
TX-32/26LXD50, TX-32/26LX50F/P Power (3/3) Block Diagram
TX-32/26LXD50, TX-32/26LX50F/P
Power (3/3) Block Diagram
Power (3/3) Block Diagram
TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P
30
11 Schematic Diagram
11.1. Schematic Diagram Notes
TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P
31
11.2. AP-Board (1/2) and K-Board Schematic Diagram
+
L.F
+
-
+
+
JW
+
+
+
+
+
JW
L.F
+
+
L.F
+
+
+
-
+
A
C240V
STB_LED
24V_DET
SUB_ACT
SUB_ACT
DC330V
SOUND_16V_2
R7127
1k
D7301
MAZ81000ML
R7207
47k
R7005
1M
1/2W
C7207
10V
1u
R7216
4.7k
R7305
1k
C7011
0.33u
*
*
C7100
50V
0.01u
D7114
B0JAMG000025
C7116
10V
2200u
LF7003
G0B103H00002
1
*
2
*
3
*
4
*
C7602
0.1u
50V
C7105
0.1u
50V
C7401
50V
470u
R7210
47k
JS7301
D7303
MAZ82200ML
C5HABZZ00165
IC7101
1
Z/C
2
F/B
3
GND
4
Vcc
5
Souce/OCL
7
Vin
9
Dr
ain
*
ZA7005
K9ZZ00000424
R7001
1M
1/2W
C7204
10V
1u
1u
Q7102
2SD0601ASL
C7601
0.22u
25V
D7004
B0FBAT000008
**
*
*
*
R7302
100k
R7115
10
0.27
R7102
1W
C7114
1000u
16V
C7010
0.1u
*
*
D7109
B0ZAZ0000045
C7003
330p
R7103
10k
D7001
ERZV10V621T2
R7122
0
R7217
1k
C7203
0.01u
50V
C7005
100p
100p
R7211
47k
D7201
MAZ40750MF
C7402
0.1u
50V
C7305
0.1u
50V
R7404
100k
D7204
MA2J11100L
C7403
16V
1000u
C7008
0.33u
*
*
D7116
B0JAMG000025
CNC1S171R
PC7102
R7113
22k
TP7001
L7108
220u
Q7207
2SD0601ASL
JS7303
C7104
50V
50V
1000p
4.7
R7004
5W
**
**
TP7005
TP7302
JS7403
C7202
16V
0.1u
R7300
K5G4023A0003
D7203
MAZ83300ML
R7119
56k
R7111
47k
C7412
1u
10V
Q7203
2SD0601ASL
C7307
35V
1000u
D7404
MA2J11100L
Q7101
2SD0601ASL
D7405
MA2J11100L
R7402
100k
TP7008
D7101
B0EAEV000001
TP7002
D7601
B0HCMM000014
R7112
1k
TP7004
TP7905
TP7007
R7109
22k
C5HAAKG00002
IC7301
VO
U
T
2
1
V
AR2
2
GND
3
ON/OFF2
4
GND
5
N.C
.
6
GND
7
VIN
9
N.C
.
11
GND
12
SW
-Node
13
ON/OFF1
14
GND
15
V
AR1
16
VO
U
T
1
17
VO
U
T
1
18
VIN
10
C7303
16V
1000u
R7129
1k
R7123
2.2k
D7112
B0EAEV000001
C7009
0.1u
*
*
ZA7002
K9ZZ00000424
C7004
100p
R7125
10.5k
10.5k
R7204
10k
K5D502BNA001
F7000
D7105
MAZ41500LF
R7303
1k
Q7205
2SB0709ASL
R7124
10k
TP7401
R7209
10k
TP7003
D7104
B0JAMG000025
D7403
MAZ81300ML
R7403
1k
AP2
1
3
5
7
AP3
1
2
3
4
5
6
7
8
9
10
11
2W
R7114
10
*
*
C7115
0.1u
50V
D7115
B0JAMG000025
D7302
MA2J11100L
TP7152
JS7404
D7106
MA2J11100L
C7118
0.01u
50V
RL7001
K6B1ADA00010
*
*
D7304
MA2J11100L
Q7401
UNR221T00L
C7112
68u
35V
R7214
4.7k
TP7402
C7012
100p
D7113
B0JANG000003
*
*
R7405
1k
C7110
450V
10u
R7215
4.7k
TP7151
D7602
B0HCMM000014
C7406
0.1u
50V
TP7006
R7400
K5G4023A0003
R7107
0
C7302
0.1u
50V
Q7301
UNR221T00L
JS7402
LF7002
G0B103H00002
1
*
2
*
3
*
4
*
C7206
10V
1u
Q7204
2SD0601ASL
C7102
100V
100p
100p
AP10
1
2
R7304
100k
D7210
MAZ40750MF
C7205
10V
1u
1u
D7202
MAZ41400MF
JS7302
C7407
16V
680u
C7117
1u
10V
C7306
0.1u
50V
C7301
50V
470u
R7208
4.7k
Q7402
UNR221T00L
4700p
1kV
C7007
L7001
G0A553G00001
1
**
4
**
6
NC
7
NC
8
NC
2
**
3
**
9
NC
10
NC
11
NC
12
NC
LF7004
G0B302H00004
3m
1
*
2
*
3
*
4
*
R7212
10k
R7128
1k
D7111
B0BA01000065
C5HAAKG00002
IC7401
V
O
UT2
1
V
AR2
2
GND
3
ON/OFF2
4
GND
5
N.C
.
6
GND
7
VIN
9
N.C
.
11
GND
12
SW
-Node
13
ON/OFF1
14
GND
15
V
AR1
16
V
O
UT1
17
V
O
UT1
18
VIN
10
R7213
4.7k
TP7301
D7003
ERZV10V621T2
C7101
470p
2kV
C7106
50V
1u
R7126
10k
T7101
ETS25AD1N6AG
2
P2
*
3
PT
4
P1
*
6
V2
7
V1
9
NC
10
S3C
11
S3B
*
12
S2A
13
S2B
14
S2C
*
15
S1
16
NC
TP7904
RL7002
K6B1ADA00010
*
*
C7405
0.1u
50V
C7109
450V
10u
C7111
50V
1u
Q7302
UNR221T00L
JS7304
R7104
8.2k
8.2k
D7402
MA2J11100L
R7121
430
D7110
B0BA42500001
R7407
47k
EXCELSA35T
L7106
JS7401
C7609
0.22u
25V
Q7206
2SB0709ASL
C7002
330p
D7401
MAZ80560ML
47
R7002
1W
D7107
B0EBKT000007
R7106
47k
R7110
10k
TP002
K6
1
3
TP001
SW001
ESB92S11B
1%
R7406
3.4k
C0DAAMA00003
IC7103
K
1
2
R
A
3
AP6
1
3
D7002
ERZV10V621T2
56
R7226
R7205
1k
R7206
1k
R7108
47k
2SD0602ASL
Q7202
R7003
8.2M
1W
1%
*R7301
2.05k
3
4
24V
GND
TO
24V
24V_ON
24V
24V
GND
GND
GND
GND
SOUND_16V OVP
5V OVP
9V OVP
3.3V OVP
DC+
TP_1
TP_2
DC-
NC
NC
NC
SUB_9V/MAIN_3.3V
SUUND_16V/SUB_5V
OVP CIRCUIT
LIVE CIRCUIT
HOT
K-BOARD TNPA3492AA
TO AC CORD
5
6
4
2
3
1
16
11
14
15
13
12
10
8
9
7
POWER UNIT
(CN101)
(CN101)
(CN201)
TO
POWR UNIT
POWR UNIT
POWER SW
POWER CONTROL
AP-BOARD (1/2)
ERROR DET
TNAP3487AB(TX-26/32LXD50)
TNAP3487AD(TX-26/32LX50F/P)
TNAP3487AD(TX-26/32LX50F/P)
AC_ON
24V DET
24V DET
RUSH CURRENT
DC_ON
DC_ON
MAIN_ON
MAIN_ON
COLD
COLD
24.0
0
0
3.2
0
0
24.0
24.0
0
24.0
0
3.3
0.9
0
7.9
0
23.1
0
24.0
24.0
0
0
8.9
7.2
0
0.3
9.0
9.0
5.0
0.9
0
24.0
7.3
0
22.1
0
0
5.4
0.4
0
0
0
5.0
16.0
24.0
D
A
F
5
2
1
C
4
9
6
3
B
8
7
E
$
M
$
<
*
=
&
+
&
M
<
<
+
<
*
TX-32/26LXD50, TX-32/26LX50F/P
AP-Board (1/2) and K-Board Schematic Diagram
AP-Board (1/2) and K-Board Schematic Diagram
TX-32/26LXD50, TX-32/26LX50F/P
AP-Board (1/2) and K-Board Schematic Diagram
AP-Board (1/2) and K-Board Schematic Diagram
TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P
32
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