Panasonic TH-42LF5E / TH-47LF5E Service Manual ▷ View online
Self Check
1. Self check is used to automatically check the bus line controlled circuit of the LCD display.
2. To get into the Self check mode, press the
2. To get into the Self check mode, press the
volume down button on the customer controls at the top of the set,
at the same time pressing the
OFF TIMER button on the remote control, and the screen will show.
If the IIC ports have been checked and found to be incorret, or not located then “- -” will appear in place “OK”
“0A” in the lie of the “PTCP” means the number of blinks of the Power LED is 10. (Reference_Power LED blinking timing
chart)
“H09” in the line of the “PTCP” is the error code
To exit the CAT mode switch off the main power.
Note:
The line of the “PTCP” display when you get into the Self check mode for first time only after the Power LED blinks.
IIC1 IIC2
A IC4504 OK HA0
IC4506 OK H92
PTCT 0A H09 ADC Adjust OK
EDID VERIFY OK
ID
17
Power LED blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the
defective block can be identified by number of blinking of the Power LED on the front panel of the unit.
Blinking times
Name
PTCT
indication
Detect item
Detect pin
2
POWER SOS
02 H09
*PWR24V, PWR15V, PWR5V Low level detect
SUB CPU Pin No.66
(POWER_FAIL1)
4
PANEL12V
SOS
04 H09
*PANEL12V Low level detect
SUB CPU Pin No.77
(POWER_FAIL3)
13
REGULATOR
SOS
0D H09
*D3.3V,DDR1.8V,H3.3V,AS1.8V Low level detect
SUB CPU Pin No.67
(POWER_FAIL2)
18
Adjustment Method
RGB white balance adjustment
Instrument Name
Connect to
Remarks
INTERNAL PATTERN – 100% WHITE
Color analyzer
( Minolta CA-210 or equivalent )
( Minolta CA-210 or equivalent )
Panel surface
Picture menu: STANDARD
User setting: Normal
except PICTURE: max 30
User setting: Normal
except PICTURE: max 30
Procedure
Remarks
[Conditions]
Make sure the front panel to be used on the final set is fitted.
Center position
[Adjustment]
1. Set COMPONENT / RGB-IN SELECT to COMPONENT
2. Select the IIC mode “LCD Drive Adj.” item.
3. Check that the color temperature is “MID”.
4. Output a white balance pattern.
5. Touch the signal receiver of color analyzer to the highlight window’s center.
6. Fix G drive at 30h and adjust B drive and R drive so x, y become the “Colour
2. Select the IIC mode “LCD Drive Adj.” item.
3. Check that the color temperature is “MID”.
4. Output a white balance pattern.
5. Touch the signal receiver of color analyzer to the highlight window’s center.
6. Fix G drive at 30h and adjust B drive and R drive so x, y become the “Colour
temperature NORMAL(Mid) in the below table.
7. At least fix one of the RGB’s drive data at 30h and adjust the others drive so x/y
(The highest RGB’s drive value is 30h).
Table W/B adjustment values
Color Temperature
x
y
NORMAL(Mid) 0.288
0.296
Adjustment target
Hi-light. X ± 0.005 y ± 0.005
Hi-light is target of the number at drive adjustment in the hi–light windows.
Therefore, it is not target of the hi-light number at after adjustment white balance.
Note :
Hi-light. X ± 0.005 y ± 0.005
Hi-light is target of the number at drive adjustment in the hi–light windows.
Therefore, it is not target of the hi-light number at after adjustment white balance.
Note :
Internal signal: STANDARD
Aspect: Full
Picture setting: Standard
Backlight: 100(Default)
“7“ key: color temperature select
Aspect: Full
Picture setting: Standard
Backlight: 100(Default)
“7“ key: color temperature select
Color temperature – Normal
(Mid.)
(Mid.)
Let the panel stand for more than 3
hours at more than 20
C.
Basically perform adjustment in the
ambient environment of room
temperature more than 20
ambient environment of room
temperature more than 20
C.
The aging time is more than20 min
at above room temperature.
at above room temperature.
Change DRIVE(R,G,B) by UP/DOWN buttons on the remote control
+
-
Change Value Register by VOL+/- buttons on the remote control
19
HDMI
DVI IN JK4002
A-BOARD
LCD PANEL
P-UNIT
P6
MAIN IN
A1
P1
P3
PC JK4001
JK4004
V1-BOARD
A22
V2-BOARD
V22
P2
P5
A4
P4
JK3503
RS-232C
IN
JK3504
JK3505
AUDIO IN
PC or DVI
A40
A48
SERVICE
SERVICE
Wiring Diagram
A11
V11
LINE OUT
RCA
20
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