Panasonic PT-TW370 / PT-TX430 / PT-TX340 Service Manual ▷ View online
ADJ-4
SECTION 3 ADJUSTMENTS
<TW370/TX430/TX340>
3. Electrical adjustment
3. 1. Service adjustment menu operation
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 <v/b> to exit the service mode.
Service Mode PANASONIC
Input
Input
Computer 1
Image Dynamic
Group
Group
No.
Data
200
1
+
0
Ver.
1.00 XXXXX
Group No.
F/W version
Item No.
Data value
ADJ-5
SECTION 3 ADJUSTMENTS
<TW370/TX430/TX340>
* Before setting, check which type of Optical block is used by
the projector according to the "Optical block 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 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.
3. Optical block type mode setting
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.
3. 2. 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.
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.
Group-No.
Test Points
Adjustment value
250 - 0
FAN-A1
4.0+0.1/-0.05Vdc
250 - 1
FAN-A1
12.5+0.05/-0.1Vdc
250 - 2
FAN-B1
6.0+0.1/-0.05Vdc
250 - 3
FAN-B1
13.0+0.05/-0.1Vdc
250 - 4
FAN-C1
6.0+0.1/-0.05Vdc
250 - 5
FAN-C1
12.5+0.05/-0.1Vdc
2. Panel type check and setting
3. Flicker adjustment
Input signal No signal
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.
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.
2. Select Group 102, No.3 and set data value from 0 to 10.
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.)
ADJ-6
SECTION 3 ADJUSTMENTS
<TW370/TX430/TX340>
3. 3. Test points and locations
MAIN board
FAN_B1
FAN_A1
FAN_C1
ADJ-7
SECTION 3 ADJUSTMENTS
<TW370/TX430/TX340>
3. 4. Service adjustment data
Group/
item Item Name
Function
Initial
Range Note
Group
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)"
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
0
0-10
4 Lock Count
"If in No4 value, enters the No4 threshold
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. "
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."
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)"
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. "
61
0-1024
Group
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
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
2
1-720
61 Remote control code
switching
data=0 indicates panasonic format, data=1
indicates sanyo format
0
0-1
80 Shipping and destination
0=worldwide, 1=JPN, 2: Education 3:
Business
0
0-4
81 Capture
0: Disable 1: Enable
1
0-1
Group
220
Error Log
(See Error Log section for the details)
0 Latest Error Log
0
:
0
49 fiftieth Error Log
0
50 Reset Error log
Set 10 to clear the error logs.
Group
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.
20 Set when R Type Optical Block used.
10
0-20
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