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] 

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