Toshiba TLP470EF Service Manual page 20

• Perform the following adjustment when replacing the main PC board (PB9061) and/or the microprocessor QXXX.
Adjust Items Input Signal
9. Slantness sensor
correction data
setting
1. Leave the unit for more than 3 hours to cool down enough.
2. Connect TLP450/451/650/651 to a personal computer by using a RS-232 cable. Set TLP450/451/650/
3. Start the slantness sensor correction data setting software (menu) on the personal computer.
4. Place TLP450/451/650/651 to be adjusted horizontally on a flat table and click "0" of keystone format
5. Place TLP450/451/650/651 to be adjusted on a table with 30 degrees slanted and its projection lens
6. Place TLP450/451/650/651 to be adjusted on a table with 30 degrees slanted and its projection lens
7. After heat-running for more than 1 hour with the power turned on, place TLP450/451/650/651 horizontally
8. Stretch the height adjusting legs on the front side of TLP450/451/650/651 fully, turn on the projector and
Test
Equip- Test Point
ment
–––– –––– ––––
Fig. 1
651 in the standby status.
P ort Save Help
Normal
Special
All data read (X command)
Read
Option
Off
Keystone format (Deg)
0
0 (High-temp)
Send CMD
(Deg) on the menu and store the data at the horizontal position. (Refer to Fig. 1.)
directed upward. Then click "+30" of keystone format (Deg) on the menu and store the data of +30
degrees position. (Refer to Fig. 2.)
directed downward. Then click "–30" of keystone format (Deg) on the menu and store the data of –30
degrees position (Refer to Fig. 3.). At this time, the data is written on the flash ROM of the TLP450/
451/650/651.
and click "0 (High-temp)" of keystone format (Deg) to save the horizontal position data at high tempera-
ture.
start projecting on the screen.
Adjust the focus roughly and push the automatic keystone button on the remote controller. Check to see
the image projected is more rectangular with less trapezoidal in comparison with the shape before
pushing the keystone button.
Table 1-4-4
Adjust
Adjust Value
mode
–––– ––––
°
30
Fig. 2
Adjust Setting Drive
Timer
Initialize
TOSHIBA logo
On Off On
+30 -30
Receive CMD
Fig. 4
1-15
Note
30 °
Fig. 3
Data Read Special