Panasonic TX-LR50B6 Service Manual ▷ View online
TX-LR50B6
5
2.2.
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.
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.
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 PbF stamped on the back of PCB.
Caution
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).
• 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.
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 figure below)
TX-LR50B6
6
3 Service Navigation
3.1.
Service Hint
Board Name
Main Device
Remarks
A BOARD
TUN, OFDM, ADV, LD4, STBY EEP
Repairable
P BOARD
Power Supply (For 32” include function SW)
Repairable
GK BOARD
Function SW
Repairable
K BOARD
LED/RM/CATS
Repairable
LD BOARD
LED DRIVER
Repairable
TX-LR50B6
7
4 Specifications
Note
• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.
Power source
AC 220-240 V, 50/60 Hz
Rated power consumption
136 W
Standby power consumption
*1
0.2 W
Panel
LED LCD panel
Visible screen size (diagonal)
126 cm (50 inches)
Display Resolution
2,073,600 (1,920 (W)
1,080 (H))
Sound
Speaker
(100 mm
30 mm) 2 pcs, 8
Audio output
20 W (10 W + 10 W), 10% THD
Headphone
M3 (3.5 mm) stereo mini Jack
1
Receiving systems / Band name
Check the latest information on the available services at the following website. (English only)
http://panasonic.net/viera/support
Check the latest information on the available services at the following website. (English only)
http://panasonic.net/viera/support
DVB-C
Digital cable services (MPEG2 and MPEG4-AVC(H.264))
DVB-T / T2
Digital terrestrial services (MPEG2 and MPEG4-AVC(H.264))
PAL D, K
VHF R1 - R2 VHF R3 - R5
VHF R6 - R12
UHF E21 - E69
SECAM D, K
PAL 525/60
PAL 525/60
Playback of NTSC tape from some PAL Video recorders (VCR)
M.NTSC
Playback from M.NTSC Video recorders (VCR)
NTSC (AV input only)
Playback from NTSC Video recorders (VCR)
Aerial input
VHF / UHF
Operating Conditions
Temperature : 0
C - 35C
Humidity : 20% - 80% RH (non-condensing)
Dimensions (W
H D)
With Pedestal (mm)
1,139
739 275
TV only (mm)
1,139
674 89
Mass (Net)
With Pedestal ( )
18
TV only ( )
15
Connection Terminals
AV1
SCART (Audio/Video in, Audio/Video out, RGB in)
AUDIO L - R
AUDIO L - R
RCA PIN Type
2
0.5 V[rms]
VIDEO
RCA PIN Type
1
1.0 V[p-p] (75
)
COMPONENT
Y
1.0 V[p-p] (including synchronization)
P
B
/C
B
, P
R
/C
R
±0.35 V[p-p]
DIGITAL AUDIO
PCM / Dolby Digital / DTS, Fibre optic
HDMI AV IN
TYPE A Connectors
2
Card slot
Common Interface slot (complies with CI Plus)
1
USB
USB 2.0
DC 5 V, Max. 500 mA
DC 5 V, Max. 500 mA
*1
When the TV is turned off with the remote control and no function is active.
TX-LR50B6
8
5 Service Mode
5.1.
How to enter into Service Modes
While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.
5.1.1.
Contents of adjustment mode
• Value is shown as a hexadecimal number.
• Preset value differs depending on models.
• After entering the adjustment mode, take note of the value in each item before starting adjustment.
• Preset value differs depending on models.
• After entering the adjustment mode, take note of the value in each item before starting adjustment.
5.1.2.
How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Main item
Sub item
Sample Data
ADJUST
CONTRAST
COLOUR
TINT
SUB-BRT
BACKLGT
H POS
H AMP
V POS
V AMP
A COM
COLOUR
TINT
SUB-BRT
BACKLGT
H POS
H AMP
V POS
V AMP
A COM
WB-ADJ
R-GAIN
8D
G-GAIN
AE
B-GAIN
FF
R-CENT
6C
G-RENT
80
B-CENT
A0
OPTION
Boot
ROM
STBY-SET
00
EMERGENCY
ON
CLK MODE
00
CLOCK
FC7
Y/C DELAY
DYNAMIC
OPT 1
00000000
OPT 2
11100110
OPT 3
00001001
OPT 4
00000000
EDID-CLK
HIGH
SRV-TOOL
00
DRV CHECK
DYNAMIC
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