TH-80BF1U, TH-80BF1W, TH-80BF1E - Panasonic TV Service Manual (repair manual). Page 11

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INF-3
SECTION 1 SERVICE INFORMATION
<80BF1>
18
Connections
1 AUDIO 1 IN :
Audio Input Terminal shared 
with COMPONENT/RGB IN and 
VIDEO IN
(see page 20)
2 COMPONENT/ 
RGB/VIDEO IN :
COMPONENT / RGB Video 
Input Terminal (P
R
/C
R
/R, P
B
/
C
B
/B, Y/G)
Connect to video equipment 
with “YP
B
P
R
 / YC
B
C
R
” or “RGB” 
output. (see page 20)
AV IN :
Composite Video Input 
Terminal (VIDEO)
Connect to video equipment 
with Composite signal output. 
(see page 20)
3 PC IN :
PC Input Terminal
Connect to video terminal of PC, 
video equipment with “YP
B
P
R
 / 
YC
B
C
R
” or “RGB” output.  
(see page 22)
4 DVI-D IN :
DVI-D Input Terminal
Connect to video equipment 
with DVI-D output.  
(see page 21)
5 AV IN  
(HDMI 1, HDMI 2) :
HDMI Input Terminal
Connect to video equipment 
such as VCR or DVD player, 
etc. (see page 20)
6 DIGITAL LINK / 
LAN :
DIGITAL LINK Input Terminal
Control the Display by 
connecting to Network. 
Alternatively, connect to a 
device that sends video and 
audio signals via the DIGITAL 
LINK terminal. (See page 25)
7 SERIAL :
SERIAL Input Terminal
Control the Display by 
connecting to PC. (see page 23)
8 PC OUT :
Monitor Out Terminal
Video signals being reproduced 
on the display are output to 
another sub monitor as PC 
video signals. (see page 24)
9 AUDIO 2 IN :
Audio input terminal shared 
with DVI-D IN and PC IN
(see page 21, 22)
10 EXT SP :
Speaker Terminal
Connect to external speaker.
(see page 26)
11 SLOT :
Expansion slot
(see page 5)
Note:  The upper side slot is for terminal board 
with 2-slot width. The terminal board with 
1-slot width does not function when installed 
in the upper side slot.
3
2
1
4
5
6
7
8
9
10
11
80-inch model
1.2. Connecting terminals
INF-4
SECTION 1 SERVICE INFORMATION
<80BF1>
1.3. Remote controls
32
Basic Controls
Remote Control Transmitter
Digital Zoom (see page 34)
Standby (ON / OFF) button
The Display must first be plugged 
into the wall outlet and turned on at 
the power switch (see page 27).
Press this button to turn the Display 
On, from Standby mode. Press 
it again to turn the Display Off to 
Standby mode.
ACTION button
Press to make selections.
ASPECT button
Press to adjust the aspect. 
(see page 33)
POS./SIZE button
(see page 62)
PICTURE button 
(see page 65)
Sound mute On / Off 
Press this button to mute the 
sound.
Press again to reactivate sound.
Sound is also reactivated when 
power is turned off or volume level 
is changed.
N button 
(see page 64, 65, 66, 70)
POSITION buttons
INPUT button 
Press to select Input signal 
sequentially. (see page 29)
ECO MODE (ECO)
Press to change the ECO MODE 
setup status. (see page 78)
FUNCTION buttons (FUNCTION)
(see page 81)
AUTO SETUP button
Automatically adjusts the position/
size of the screen. (see page 62)
SET UP button (see page71)
SOUND button (see page 70)
Volume Adjustment
Press the Volume Up “+” or Down 
“–” button to increase or decrease 
the sound volume level.
R button (see page 60) 
Press the R button to return to 
previous menu screen.
OFF TIMER button
The Display can be preset to switch to 
stand-by after a fixed period. The setting 
changes to 30 minutes, 60 minutes, 90 minutes 
and 0 minutes (off timer cancelled) each time 
the button is pressed.
30 min
60 min
0 min (Cancel)
90 min
When three minutes remain, “Off timer 3 min” 
will flash.
The off timer is cancelled if a power interruption 
occurs.
RECALL button
Press the “RECALL” button to 
display the current system status.
 Input label
  Aspect mode (see page 33) 
Audio input (see page 93) 
Profile name (see page 69)
  Off timer 
The off timer indicator is 
displayed only when the off 
timer has been set.
 Clock display (see page 90)
1
2
PC
4:3
♪  COMPONENT
Memory name: MEMORY2
Off timer 90min
3
4
10:00
INF-5
SECTION 1 SERVICE INFORMATION
<80BF1>
2. Notes on Service
2.1. Before service operation
2.1.1. LCD panel module
1.  Although an LCD panel module is a product of high-precision technology, some of the pixels on the image may be missing 
or constantly lit. Please note that this is not a failure.
2.  Displaying a still image for a longer time may result in an after-image on the LCD panels. If this happens, display the all 
white screen in the test pattern for an hour or more.
2.2. Service
2.2.1. Supporting Methods
The basic service policy is shown below.
Repair contents
Applied parts
Block replacement 
Module replacement
 
- LCD panel module
 
- PCB module
Replaced by discrete components
Other electrical parts and mechanism parts
2.2.2. Repair
1. Before repairing, make sure to turn off the main power and disconnect the power plug from the power outlet.
  *  When replacing the PCB module, the internal electrical parts can be broken by the static electricity of clothes or human 
body. Please take care in static electricity, use an antistatic wrist strap or wear the anti-static electricity gloves.
2. After repairing, please check the gradation (10 step or the gray scale) test pattern or moving image.
  Also, please check that it is normal on a self check screen.
INF-6
SECTION 1 SERVICE INFORMATION
<80BF1>
3. Service Mode
3.1. How to display CAT mode
n
 To display the CAT mode
n
 To exit the CAT mode
Turn off the Display with the main switch or remote control unit. 
Method A
Main unit + remote control operation
Press and hold the VOL down button on the right side of the unit and press the RECALL button on the remote control 3 times quickly 
within 2 second, this will place the unit into the CAT mode.
Method B
Remote control operation only
1. Set the OFF timer except for [0] minute by OFF TIMER button. (30 minutes, 60 minutes, 90 minutes)
2. Set the volume level of sound to 0 by VOL down button / -button.
3. Press the RECALL button more than 3 seconds before a volume display disappears. 
Main unit
Remote control
3 times
Button
Press and hold
Right side of the unit
Step 1
Step 2
Step 3
Press the button (3 seconds)
INF-7
SECTION 1 SERVICE INFORMATION
<80BF1>
3.2. Settings and adjustments mode (IIC Mode)
1. Display the CAT mode (Refer to 3.1.).
2.  The CAT mode menu appears on the screen. Select the [IIC Mode] menu with [pq] buttons and press the [
n
] ACTION 
button to enter the IIC mode.
3. IIC mode structure (following items value is sample data).
CAT Panel sys.8.2
IIC Mode
CD Mode
NW Mode
SD Mode
MS Mode
ID Mode
15
[p q]
 [t
 u] 
INF-8
SECTION 1 SERVICE INFORMATION
<80BF1>
3.3. Software, EEPROM version and failure information (CD Mode)
• This model provides a power failure history function (5 histories) as PTCT information in the CD mode. 
•  On the self check for a signal system, only one history is displayed (it will disappear after self checking). The PTCT displays 
up to 5 histories and they do not disappear even if the self check has been done. You can see the history of power failure 
any time.
1. Display the CAT mode (Refer to 3.1.).
2.  The CAT mode menu appears on the screen. Select the [CD Mode] menu with [pq] buttons and press the [MUTE] button 
for more than 3 seconds to enter the CD mode.
For further information of PTCT failure code, refer to the item [4.2. Self check of power system].
To exit the CD mode
Press the [R] button to return to the CAT mode menu
CAT Panel sys.8.2
IIC Mode
CD Mode
NW Mode
SD Mode
MS Mode
ID Mode
CD
MONITOR-MCU(80inch)
1.0100BF1
OK
MONITOR-EEPROM
61.00 1 
BD E9
MONITOR-EEPROM Change Addr
00
01
Data
01
01
MONITOR-FPGA
1.00
MONITOR-FRC
0522
LAN-MCU
1.00/1.01/00
HD-BaseT
30.94.600C
TOUCH PANEL
6.4.0.4
LAN-MAC(WIRED)
20:C6:EB:76:90:D1
LAN-MAC(WIRELESS)
EB:EE:B4:D2:EB:92
SLOT BOARD EEPROM
-- --
-- --
SLOT BOARD --/--/--
-- --
-- --
-- --
SERIAL No.
123456789
PTCT
00. 00.  00.  00.  00.
Firmware version of Main MCU 
EEPROM version, Destination code
EEPROM address
EEPROM data
 
Software version of FPGA
Software version of FRC
Software version of LAN MCU
Software version of HD-BaseT
Touch panel version
MAC address of Wired LAN Interface
MAC address of Wireless LAN Interface
EEPROM information of a SLOT
Kind, version of SLOT BOARD
Serial number
PTCT information(SOS history)
01. 04. 09. 0D. 04.
First failure
Second failure
3rd latest failure
2nd latest failure
Latest failure
About PTCT information
INF-9
SECTION 1 SERVICE INFORMATION
<80BF1>
3.4. Network connection check  mode (NW Mode)
1. Display the CAT mode (Refer to 3.1.).
2.  The CAT mode menu appears on the screen. Select the [NW Mode] menu with [pq] buttons and press the [
n
] ACTION 
button to enter the NW mode.
3. Press the [
n
] ACTION button to start the network connection check. The check result will be displayed in a few seconds.
Note:
  1.  If you move a cursor to "Firmware" and press an Action button, "Only receiving side information display" and "Receiving 
side / Transmitting side information simultaneous display" can be switched.
  2. The value of "Max Count" is resettable if you move a cursor to "Max Count" and press an Action button.
CAT Panel sys.8.2
IIC Mode
CD Mode
NW Mode
SD Mode
MS Mode
ID Mode
----
TEST(WIRELESS)
----
Version
1.00/1.01/00
MAC(WIRED)
20:C6:EB:76:90:D1
MAC(WIRELESS)
EB:EE:B4:D2:EB:92
Network control
On
DIGITAL LINK
Firmware
30.94.600C
Link Status
Ethernet
HDMI Status
No HDMI
BER
V00/A00/B00/C00
Max Count
A 0/B 0/C 0/D 0
Est. Cable Length
0 (m)
Signal Quality
(A)
- 0 (dB)
(B)
- 0 (dB)
(C)
- 0 (dB)
(D)
- 0 (dB)
Min
- 0 (dB)
Max
- 0 (dB)
Model Name 
-----
Result of Network Test
・OK 
:There is a response of PING
・G_NG  :No response of PING
・L_NG  :A LINK state is not established 
Connection state
・No link
:No connection
・DIGITAL LINK :In DIGITAL LINK operation 
・Ethernet
:In Ethernet operation
NW
TEST(WIRED)
Display the information of HDMI ON/OFF and HDCP
・No HDMI:Can not be recognized as a signal of the HDMI
・HDMI  on:Non HDCP HDMI signal
・HDCP  on:HDCP HDMI signal
Error ratio of the transmission path information
 V:VIDEO BER
 A:AUDIO BER
 B:BLANK BER
  C:CONTROL BER(Max:10)
Standard of momentary signal quality aggravation
・When it is over 64, the image may have broken off.
  (Max:255) 
Display the signal quality at the time of DIGITAL LINK 
operation
OK/LOW/NG is displayed as each channel(A,B,C,D,Min,Max)
・-12 db or more:Normal receivable range
・-11 to -8 db  :Partial damage of data
 
 
 
(possible image output)
・-7 db or less :Synchronization disorder occurrence
 
 
 
(impossible image output) 
INF-10
SECTION 1 SERVICE INFORMATION
<80BF1>
  [Example of Receiving / Transmitting side information simultaneous display]
To exit the NW mode
Press the [R] button to return to the CAT mode menu
NW
TEST(WIRED)
----
TEST(WIRELESS)
----
Version
1.00/1.01/00
MAC(WIRED)
20:C6:EB:76:90:D1
MAC(WIRELESS)
EB:EE:B4:D2:EB:92
Network control
On
DIGITAL LINK
Firmware
30.94.600C/--.--.---
Link Status
Ethernet / ---
HDMI Status
No HDMI / ---
BER
V00/A00/B00/C00/T--
Max Count
A 0/B 0/C 0/D 0
Est. Cable Length
0 (m)
Signal Quality
(A)
- 0 (dB)
(B)
- 0 (dB)
(C)
- 0 (dB)
(D)
- 0 (dB)
Min
- 0 (dB)
Max
- 0 (dB)
Model Name
-----
[Example of Receiving / Transmitting side information simultaneous display]
Transmitting side information is displayed 
on right-hand side.
T
:TOTAL BER(Transmitting side)
INF-11
SECTION 1 SERVICE INFORMATION
<80BF1>
3.5. Status display mode (SD Mode)
•  In the SD mode, internal temperature, cumulated used time and cumulated power-on times can be checked.
1. Display the CAT mode (Refer to 3.1.).
2.  The CAT mode menu appears on the screen. Select the [SD Mode] menu with [pq] buttons and press the [
n
] ACTION 
button  to enter the SD mode.
To exit the SD mode
Press the [R] button to return to the CAT mode.
CAT Panel sys.8.2
IIC Mode
CD Mode
NW Mode
SD Mode
MS Mode
ID Mode
12
TH-50LFB70U/TH-50LFB70W
5.1.3.
SD mode
Select the SD mode by 
Up/Down button on the remote control at the front page of CAT mode and then press the Action button on
the remote control.
To exit the SD mode, press the 
R button on the remote control.
5.1.4.
MS mode
Select the MS mode by 
Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on
the remote control more than 3 seconds.
To exit the MS mode, press the 
R button on the remote control.
Caution:
Market Select should be set after exchange of A-Board.
Destination number
Number
Model (Destination)
0
50LFB70J (Japan)
1
50LFB70U (North America)
2
50LFB70E (Europe)
3
50LFB70W (Asia, Oceania, ME, Africa)
18
50LFB70C (China)
INF-12
SECTION 1 SERVICE INFORMATION
<80BF1>
3.6. Market select setting mode (MS Mode)
n
 After replacing the A module, this market select setting must be done following to the procedure below.
1. Display the CAT mode (Refer to 3.1.).
2.  The CAT mode menu appears on the screen. Select the [MS Mode] menu with [pq] buttons and press the [MUTE] button 
for more than 3 seconds to enter the MS mode.
3.  Select desired destination number with [pq] buttons and press the [
n
] ACTION button to set. The present destination 
number will be changed to the same number of new destination number. At this moment, new destination number will be 
applied and all the user setting value will be reset to the factory initial data according to the destination set.
4. Turn the display off and leave for more than 1 minute and then turn on again.
5.  The Display will turn on and then the "Display Language Selection" menu will be displayed on the screen. Select your lan-
guage with the [pq] buttons and press the [
n
] ACTION button to set.
Number Destination
0
Japan
1
North America
3
Europe, Asia, Oceania
18
China
31
For factory use
33
English
 
 Power ON message
 The following message may be displayed when turning 
the unit power ON:
 No activity power off Precautions
  ‘No activity power off’ is enabled.
 When [No activity power off] in the [Setup] menu is set to 
[Enable], a warning message is displayed every time the 
power is turned ON. (see page 79)
 Note
● 
 [No activity power off] is not activated with OpenPort 
PLATFORM input. The message [ ‘No activity power 
off’ is enabled.] is not displayed, either.
● 
 The message [Last turn off due to ‘No activity power 
off’.] is also displayed when OpenPort PLATFORM 
input is used at the time the display is turned on.
 “Power management” Information
 Last turn off due to ‘Power management’.
 When “Power management” is functioned, an 
information message is displayed every time the power 
is turned ON. (see page 77)
 These message displays can be set with the following 
menu:
● 
 [Options] menu
 Power on message(No activity power off) 
(see page 92)
 Power on message(Power management) 
(see page 92)
 
 
 When the Unit is turned on for the first time
 Following screen will be displayed.
 1
 Select the language with     and 
press <ENTER>.
 
English (UK)
Deutsch
Français
Italiano
Español
ENGLISH (US)
Русский
 OSD language
 2
 For vertical installation, select 
[Portrait] with     and press 
<ENTER>.
 
 Display orientation
 Landscape
 Portrait
 Note
● 
 Once the items are set, the screens won’t be 
displayed when switching on the unit next time.
 After the setting, the items can be changed in the 
following menus.
 [OSD language] (see page 79)
 [Display orientation] (see page 83)
● 
 When [Display orientation] is set to [Portrait], 
a confirmation message to restart OpenPort 
PLATFORM is displayed.
 
CAT Panel sys.8.2
IIC Mode
CD Mode
NW Mode
SD Mode
MS Mode
ID Mode
12
TH-50LFB70U/TH-50LFB70W
5.1.3.
SD mode
Select the SD mode by 
Up/Down button on the remote control at the front page of CAT mode and then press the Action button on
the remote control.
To exit the SD mode, press the 
R button on the remote control.
5.1.4.
MS mode
Select the MS mode by 
Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on
the remote control more than 3 seconds.
To exit the MS mode, press the 
R button on the remote control.
Caution:
Market Select should be set after exchange of A-Board.
Destination number
Number
Model (Destination)
0
50LFB70J (Japan)
1
50LFB70U (North America)
2
50LFB70E (Europe)
3
50LFB70W (Asia, Oceania, ME, Africa)
18
50LFB70C (China)
[t
 u] 

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