Panasonic PT-LW330 / PT-LW280 / PT-LB360 / PT-LB330 / PT-LB300 / PT-LB280 (serv.man5) Service Manual ▷ View online
-33-
Lighting block Disassembly
D
Fig. 6
B
H
E
C
When disassembling or mounting the optical parts in
the Lighting block, the parts must be mounted in the
specified location and direction as shown in the figure
below.
A
G
6. Locations and directions
No. Parts Name
A
Dichroic mirror (B)
B
Dichroic mirror (G)
C
Condenser lens (R)
D
Condenser lens (G)
E
Condenser lens (B)
F
Reflection mirror(R)
G
Relay lens (IN)
H
Reflection mirror (B)
I
Relay lens (OUT)
F
I
F
Marker comes
this side up
Marker
-34-
Disassembly / Replaced Parts
Optical block Condenser lens (OUT)
Fans
MAIN board
Optical
adjustment
Optical center adjustment
Electrical adjustment
Fan voltage adjustment
Panel type check and setting
Flicker adjustment
Keystone offset adjustment
EEPROM data transfer *1
Model no. setting
Serial No. setting
Note:
*1 When the EEPROM data transfer has been taken, the adjusted data listed below will be transferred from the
original board to new board.
- Service adjustment data (Fan voltage adjustment/
Panel type setting
/Flicker adjustment)
- Used time (Projector used time/Lamp used time)
- Color shading correction data
- Gamma correction data
Adjustments after parts replacement
: Adjustment
: Check
Adjustment
-35-
Optical adjustment
1 Adjust the condenser lens (OUT) to obtain a completely white
screen.
1) In case the shadow appears on the left or right edge of the
screen. Loosen 1 screw A and move the condenser lens unit
right or left to disappear the shadow on the screen. (Fig2-1)
2) In case the shadow appears on the top or bottom edge of the
screen. Loosen 2 screws B and move the condenser lens unit
upper or lower to disappear the shadow on the screen. (Fig.2-2)
2. Tighten screws A and B to fix the condenser lens unit.
Optical center adjustment
Fig. 2-2
Completely
white screen
Completely
white
screen
Fig. 2-1
a
b
y
x
x
B
B
[Before]
- Input a 100% white signal.
y
a
A
b
Before taking optical adjustments, remove the cabinet top following the "Mechanical Disassembly".
Tools: a hex wrench and a slot screwdriver.
Note: Do not disconnect connectors on the main board, because the projector cannot turn on due to
operate the power failure protection.
-36-
Enter service mode.
To enter the
"Service Mode", press and hold the MENU button and button on the projector for more than
3 seconds or press and hold the MENU button on the remote control for more than 20 seconds. The service menu
appears on the screen as follows.
To adjust service data
1. Select the adjusting items "Group", "No." or "Data" by pressing the MENU button repeatedly. The red cursor will
move to show the selected item.
2. To change the value of selected item, press the or button repeatedly. Refer to the "Service adjustment
data table" for further information.
Exit service mode.
Press
to exit the service mode.
Service adjustment menu operation
Electrical adjustment
Service Mode PANASONIC
Input
Input
Computer 1
Image Dynamic
Group
Group
No.
Data
200
80
+2
Ver.
1.00 XXXXX
Data value
Item no.
Group no.
Firmware version
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