Panasonic PT-LW330 / PT-LW280 / PT-LB360 / PT-LB330 / PT-LB300 / PT-LB280 (serv.man3) Service Manual ▷ View online
-37-
Electrical adjustment
Circuit adjustment
CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the
following adjustments except requiring the readjustments in servicing otherwise it may cause
loss of performance and product safety. Before adjustment, please turn on the projector for
more than ten minutes.
loss of performance and product safety. Before adjustment, please turn on the projector for
more than ten minutes.
WARNING: USE UV RADIATION EYE AND SKIN PROTECTION
DURING SERVICING
.
CAUTION: To prevent suffer of UV radiation, those adjustments
must be completed within 25 minutes.
1. Fan voltage adjustment
Equipment
Digital voltmeter
1. Enter the service mode.
2. Connect the digital voltmeter to the test points listed
below.
3. Select Group no. 250, No. 0 and change the Data
value to adjust the reading of voltmeter to be
specified value.
4. Adjust the remaining adjustments of the No. 1 to 5
listed below.
2. Connect the digital voltmeter to the test points listed
below.
3. Select Group no. 250, No. 0 and change the Data
value to adjust the reading of voltmeter to be
specified value.
4. Adjust the remaining adjustments of the No. 1 to 5
listed below.
Group-No.
Test Points
Adjustment value
250 - 0
FAN-A1
4.0 ±0.1Vdc
250 - 1
FAN-A1
12.5 ±0.1Vdc
250 - 2
FAN-B1
4.0 ±0.1Vdc
250 - 3
FAN-B1
12.5 ±0.1Vdc
250 - 4
FAN-C1
4.0 ±0.1Vdc
250 - 5
FAN-C1
12.5 ±0.1Vdc
2. Panel type check and setting
* Before setting, check which type of Optical block is
used by the projector according to the "Optical block
removal" chapter in Optical Parts Disassembly.
removal" chapter in Optical Parts Disassembly.
1. Enter the service mode.
2. Optical block type check
Select Group 290 and No. 0 to check the following
2. Optical block type check
Select Group 290 and No. 0 to check the following
values;
Data "0"
: L-type Optical block
Data "20"
: R-type Optical block
If the installed type of Optical block is different
from the set display mode, perform the following
procedures.
procedures.
3. Optical block type mode setting
Select Group 290 and No. 1, set the Data value
Select Group 290 and No. 1, set the Data value
between 10 and 0 or 20 according to the Optical
block type. When the value reaches 0 or 20, it will
return to 10.
block type. When the value reaches 0 or 20, it will
return to 10.
3. Flicker adjustment
Input signal No signal
1. Enter the service mode.
2. Select Group No.30 and change Data value as
1. Enter the service mode.
2. Select Group No.30 and change Data value as
follows. Obtain the minimum screen flickering value
by adjusting the value.
by adjusting the value.
Group-No. Adjustment
30 - 3
Red flickering
30 - 4
Green flickering
30 - 5
Blue flickering
4. Keystone offset correction
Input signal No signal
1. Put the projector on a horizontal place with the
adjustable feet being minimum range and then enter
the service mode.
the service mode.
2. Select Group 102, No.3 and set data value from 0 to 5.
3. By pressing the INPUT/ENTER button, the Keystone
3. By pressing the INPUT/ENTER button, the Keystone
Offset adjustment will start.
4. When it has completed, the "OK" message will
appear on the screen.
5. By pressing any button on the projector or the
remote control, the "OK" message will disappear.
(Data value of Group 102, No.3 will be back to 0 for
initial value.)
(Data value of Group 102, No.3 will be back to 0 for
initial value.)
Depending on the firmware version, Group 290 is not
available, in this case, please upgrade the firmware
version.
available, in this case, please upgrade the firmware
version.
-38-
Electrical adjustment
MAIN board
Test points and locations
(Applicable for PT-LW330/PT-LW280/PT-LB360/PT-LB330/PT-X330C)
FAN_B1
FAN_A1
FAN_C1
(Applicable for PT-LB300/PT-LB280)
FAN_B1
FAN_A1
FAN_C1
IC3501
-39-
Electrical adjustment
Service adjustment data
Group/
item
Item Name
Function
Initial
Range
Note
Group
102
102
Option
0 Offset
Offset (unit 1/64 degree) indicates
0
-1056 ~
1056
1 Offset Switch
"0: Offset indicates (normal)
1: Offset indicates (when the calibration is
wrong)"
1: Offset indicates (when the calibration is
wrong)"
0
0-1
2 Debug Mode
0: none
0
0-1
3 Service Calibration
1: angle (0.5 degree), AD value (1/1000V)
indicates, RS232C output
indicates, RS232C output
0
0-10
4 Lock Count
"If in No4 value, enters the No4 threshold
value without keystone offset correction. "
value without keystone offset correction. "
5
1-255
5 Delta Vert Result
"If in No4 value, enters the No5 threshold
value without keystone offset correction. "
value without keystone offset correction. "
64
1-255
6 Angle 1 Count
No6 value x No7 value = calculation number
1
1-10
7 Angle 2 Count
No6 value x No7 value = calculation number
5
1-10
8 Blind Sector 1
"Blind sector 1 (unit 1/64 degree)
from 0 degree center projector incline and
convert the threshold to 0 degree."
from 0 degree center projector incline and
convert the threshold to 0 degree."
160
0-1024
9 Blind Sector 2
"Blind sector 2 (unit 1/64 degree) exceeds
blind sector 1. Change it to No10 value in
the threshold value (blind sector 2 + blind
sector 1)"
blind sector 1. Change it to No10 value in
the threshold value (blind sector 2 + blind
sector 1)"
32
0-1024
10 Blind Sector Bias
"Change the value when the bias
(unit 1/64 degree) blind sector 2 (No9) is
included in the blind sector. "
(unit 1/64 degree) blind sector 2 (No9) is
included in the blind sector. "
61
0-1024
Group
200
200
Option
1 Baud rate setting
0: 19200 bps, 1: 9600 bps
0
0-1
RS232C baud rate change
30 Lamp life test enable
0:Disable 1:Enable, lamp service life test
only
only
0
0-1
31 Lamp On time (for life test)
Startup time (minute) setting
2
1-720
32 Lamp Off time (for life test)
Off time (minute) setting
0
1-720
61
Remote control code
switching
switching
data=0 indicates panasonic format, data=1
indicates sanyo format
indicates sanyo format
0
0-1
80 Shipping and destination
0=worldwide, 1=JPN, 2: Education 3:
Business
Business
0
0-3
81 Capture
0: Disable 1: Enable
1
0-1
Group
220
220
Error Log
(See Error Log section for the details)
0 Latest Error Log
0
1 Second Error Log
0
2 Third Error Log
0
3 fourth Error Log
0
4 fifth Error Log
0
5 sixth Error Log
0
6 seventh Error Log
0
7 eighth Error Log
0
8 ninth Error Log
0
9 tenth Error Log
0
10 eleventh Error Log
0
11 twelfth Error Log
0
12 thirteenth Error Log
0
13 fourteenth Error Log
0
14 fifteenth Error Log
0
15 sixteenth Error Log
0
16 seventeenth Error Log
0
17 eighteenth Error Log
0
18 nineteenth Error Log
0
19 twentieth Error Log
0
20 twenty-first Error Log
0
21 twenty-second Error Log
0
22 twenty-third Error Log
0
23 twenty-fourth Error Log
0
24 twenty-fifth Error Log
0
25 twenty-sixth Error Log
0
26 twenty-seventh Error Log
0
27 twenty-eighth Error Log
0
28 twenty-ninth Error Log
0
29 thirtieth Error Log
0
30 thirty-first Error Log
0
31 thirty-second Error Log
0
32 thirty-third Error Log
0
33 thirty-fourth Error Log
0
34 thirty-fifth Error Log
0
35 thirty-sixth Error Log
0
36 thirty-seventh Error Log
0
37 thirty-eighth Error Log
0
38 thirty-ninth Error Log
0
39 fortieth Error Log
0
-40-
Electrical adjustment
Group/
item
Item Name
Function
Initial
Range
Note
40 forty-first Error Log
0
41 forty-second Error Log
0
42 forty-third Error Log
0
43 forty-fourth Error Log
0
44 forty-fifth Error Log
0
45 forty-sixth Error Log
0
46 forty-seventh Error Log
0
47 forty-eighth Error Log
0
48 forty-ninth Error Log
0
49 fiftieth Error Log
0
Group
290
290
L/R Panel
0 Panel Type Indication
0: L Panel, 20: R Panel
0
0-20
1 Setup Panel Type
0 Set when L Type Optical Block is used.
20 Set when R Type Optical Block used.
10
0-20
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