Panasonic TX-32LM70F / TX-32LM70L / TX-32LM70P / TX-26LM70F / TX-26LM70L / TX-26LM70P Service Manual ▷ View online
About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work,
we’d suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol
we’d suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol
stamped on the back of PCB.
Caution
•
Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40°C)
higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
•
Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before
applying Pb solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before
applying Pb solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
•
After applying PbF solder to double layered boards, please check the component side for excess solder which may
flow onto the opposite side. (see Fig.3)
flow onto the opposite side. (see Fig.3)
Suggested Pb free solder
There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder.
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used. (see Fig.4)
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used. (see Fig.4)
Fig.3
Fig.4
5
Service Hints
How to remove the Pedestal assembly
Lay the main unit face down. (see Fig.5)
Remove the 4 fixing screws and the pedestal assembly. (see Fig.6)
How to remove the backcover
Remove the 16[14] fixing screws. (see Fig.7)
Fig.5
Fig.6
SCREWS
SCREWS
Fig.7
6
SCREWS
SCREWS
Chassis Board Layout
Setting Inspection
Voltage Confirmation
Board Name
Function
A-Board
Main Board
B-Board
Tuner
H-Board
AV3 Terminal
Key Control
Key Control
K-Board
Mains Input, Power Switch
P-Board
Power Supply
V-Board
Remote Receiver, LED IR, Bats
7
P-BOARD
V-BOARD
K-BOARD
A-BOARD
B-BOARD
KEY CONTROL
H-BOARD
Confirm the following voltages:
A board
Normal mode
Test point
Position
Voltage
Description
TP3800
Connector A7, pin 20
13,8V
± 0,7V
STBY12V
TP3806
Connector A7, pin 8
23,9V
±0,5V
SIGNAL24V
TP3810
Connector A7, pin 12
23,9V
± 0,5V
AUD24V
TP3811
Q3800, +pin
3,3V
± 0,3V
3.3V_HDMI
TP3802
5,05V
± 0,25V
5V
TP3812
D3802, -pin
8,2
± 0,5V
8V
TP3801
IC3801, pin1
9V
± 0,9V
9V
TP3805
13,8V
± 0,7V
12V
TP3815
D3819, -pin
30V
± 2V
30V
Standby mode
TP3813
C3801, pin
5V
± 0,5V
STBY5V
TP3804
C3808, +pin
3,3V
± 0,2V
STBY3.3V
TP3803
C3818, +pin
1,8
± 0,1V
STBY1.8V
P board
Normal mode
TP833
Connector P2, pin 8
23,9V
± 0,5V SIGNAL24V
TP830
Connector P2, pin 9
24,2V
± 0,5V
AUD24V
TP832
Connector P2, pin 20
13,8V
± 0,7V
STBY12V
TP830
Connector P2, pin 12
23,9V
± 0,5V
AUD24V
Standby mode
TP833
Connector P2, pin 8
24,2V
± 0,5V
SIGNAL24V
TP830
Connector P2, pin 9
<10V
AUD24V
Self Check
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep
pressing the STATUS button on the remote control and press the down (-/v) button on the TV set. To exit Self Check,
switch off the TV set at the power button.
pressing the STATUS button on the remote control and press the down (-/v) button on the TV set. To exit Self Check,
switch off the TV set at the power button.
8
E2CRC
D5
OPTION 1
0F
OPTION 2
00
OPTION 3
B9
OPTION 4
11
OPTION 5
00
OPTION 6
45
OPTION 7
FD
OPTION 8
D8
OPTION 9
00
OPTION 10
00
OPTION 11
13
OPTION 12
20
OPTION 13
18
CHECK
3E
E2 O.K.
VCTP
VCTP
O.K.
AVSW O.K.
TUN
TUN
O.K.
HDMI
O.K.
Chassis 21
Model
Model
01
Size
32
VCTP
B3
Self Check Complete
Panasonic GLP21M
TX-32LM70F
Display
Ref. No.
Description
P.C.B.
E2
IC1120
EAROM
A-Board
VCTP
IC1501
AUDIO VIDEO TEXT PROCESSOR
A-Board
AVSW
IC1501
AV SWITCH
A-Board
TUN
TU001
TUNER
B-Board
HDMI
IC1503
HDMI
A-Board
If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".
E2CRC
45
OPTION 1
0D
OPTION 2
00
OPTION 3
39
OPTION 4
10
OPTION 5
00
OPTION 6
45
OPTION 7
3C
OPTION 8
58
OPTION 9
00
OPTION 10
40
OPTION 11
13
OPTION 12
28
OPTION 13
08
CHECK
B2
E2 O.K.
VCTP
VCTP
O.K.
AVSW O.K.
TUN
TUN
O.K.
HDMI
O.K.
Chassis 21
Model
Model
04
Size
32
VCTP
B3
Self Check Complete
Panasonic 2007LCD
TX-32LM70L
E2CRC
87
OPTION 1
0F
OPTION 2
00
OPTION 3
B9
OPTION 4
11
OPTION 5
00
OPTION 6
45
OPTION 7
FD
OPTION 8
58
OPTION 9
00
OPTION 10
00
OPTION 11
13
OPTION 12
20
OPTION 13
18
CHECK
BE
E2 O.K.
VCTP
VCTP
O.K.
AVSW O.K.
TUN
TUN
O.K.
HDMI
O.K.
Chassis 21
Model
Model
02
Size
32
VCTP
B3
Self Check Complete
Panasonic 2007LCD
TX-32LM70P
E2CRC
C3
OPTION 1
0F
OPTION 2
00
OPTION 3
B9
OPTION 4
11
OPTION 5
00
OPTION 6
45
OPTION 7
FD
OPTION 8
D8
OPTION 9
00
OPTION 10
00
OPTION 11
13
OPTION 12
40
OPTION 13
18
CHECK
5E
E2 O.K.
VCTP
VCTP
O.K.
AVSW O.K.
TUN
TUN
O.K.
HDMI
O.K.
Chassis 21
Model
Model
05
Size
26
VCTP
B3
Self Check Complete
Panasonic 2007LCD
TX-26LM70F
E2CRC
F1
OPTION 1
0D
OPTION 2
00
OPTION 3
39
OPTION 4
10
OPTION 5
00
OPTION 6
45
OPTION 7
3C
OPTION 8
58
OPTION 9
00
OPTION 10
40
OPTION 11
13
OPTION 12
48
OPTION 13
08
CHECK
D2
E2 O.K.
VCTP
VCTP
O.K.
AVSW O.K.
TUN
TUN
O.K.
HDMI
O.K.
Chassis 21
Model
Model
08
Size
26
VCTP
B3
Self Check Complete
Panasonic 2007LCD
TX-26LM70L
E2CRC
91
OPTION 1
0F
OPTION 2
00
OPTION 3
B9
OPTION 4
11
OPTION 5
00
OPTION 6
45
OPTION 7
FD
OPTION 8
58
OPTION 9
00
OPTION 10
00
OPTION 11
13
OPTION 12
40
OPTION 13
18
CHECK
DE
E2 O.K.
VCTP
VCTP
O.K.
AVSW O.K.
TUN
TUN
O.K.
HDMI
O.K.
Chassis 21
Model
Model
06
Size
26
VCTP
B3
Self Check Complete
Panasonic 2007LCD
TX-26LM70P
TV V1.09
E2 V04
E2 V04
TV V1.09
E2 V04
E2 V04
TV V1.09
E2 V04
E2 V04
TV V1.09
E2 V04
E2 V04
TV V1.09
E2 V04
E2 V04
TV V1.09
E2 V04
E2 V04
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