2. Assemble the circuit as shown in Fig. 2. Plug the power
cord in a power outlet.
3. Connect M1 to T1 according to Fig. 2 and measure the
voltage.
4. Change the connection of M1 from T1 to T2 and measure
the voltage again.
5. The voltmeter must read 0.375 V or lower in both of steps
3 and 4. This means that the current must be 0.75 mA or
less.
6. If the reading is out of the above standard, the projector
must be repaired and rechecked before returning to the
customer because of a possibility of an electric shock.
1.3. UV Precaution and UHM Lamp
Precautions
· Be sure to unplug the power cord from the power outlet
when replacing the lamp.
· Because the lamp reaches a very high temperature during
its operation, wait until it cools completely when replacing
the Lamp Unit.
· The lamp emits small amounts of UV-radiation, avoid directeye contact with the light.
· The lamp unit has high internal pressure. If improperly
handled, explosion might result.
· Because the high pressure lamp involves a risk of failure,
never touch the lamp wire lead during the service. (See Fig.
according to connected equipment. In this case, set HPLL to OFF.
· EMULATE
Switching the operation of RS-232C command to communicate with models other than F100 series.
−
− DEFAULT: F100/F100NT standard, D3500
− −
−
− TYPE1: L730/L780/L735/LB/LC series
− −
−
− TYPE2: L785
− −
−
− OTHER: Models other than the above-mentioned (Consult your dealer or Authorized Service Center for details.)
− −
·AUDIO IN STANDBY
Setting the audio output when STANDBY
−
− OFF: Does not output it.
− −
−
− ON: Outputs it.
− −
Note:
−
− When setting it to "ON", audio source of the input channel when the power supply is turned off (switched to STANDBY)
− −
is outputted. Do with the remote control unit, control panel or RS-232C communication when you switch the channel.
The audio volume can be adjusted by the remote control unit or RS-232C communication.
· OVER SCAN
Setting the rate of over scanning
−
− 1: Approx. 6%
− −
−
− 2: Approx. 4%
− −
Note:
−
− Normally, set it to "1".
− −
·MENU LOCK
Switching ON/OFF "MENU LOCK" function
−
− OFF: Accessible to MENU
− −
−
− ON: The access to MENU is restricted (The password is required).
− −
−
− When MENU LOCK is set to "ON", the password input screen is displayed when it accesses the menu, and the
− −
adjustment in the menu item is locked.
· MENU LOCK PASSWORD
Setting the password into MENU LOCK
−
− The default password is "AAAA".
− −
When you want to reset the password into the default password, do the following operation.
1. Press on the remote control unit the AUTO SETUP button, or on the main unit the INPUT SELECT button and the
button at the same time for 2 seconds or more.
2. Press
· ARF ROLL
Rolling the ARF (Auto Rolling Filter) compulsorily.
· SELF CHECK
To enter the self-check mode
· TEST PATTERN
To display test patterns
· FLICKER ADJUST
To enter the flicker adjustment mode
button for 2 seconds or more.
2.3. Canceling EXT OPTION
Press "MENU" button on the main unit or remote control unit.
3 Self-Check Mode
This mode is used to narrow down the location of the failure.
3.1. Procedure to enter the self-check mode
Select "SELF CHECK" on "EXT OPTION" menu and press "ENTER" button on the main unit or remote control unit.
Press "MENU" button on the main unit or remote control unit.
4 Test Pattern
This projector displays seven kinds of test patterns [Horizontal lines, Vertical lines, Dots, Crosshatch, White cross, Black cross and
White (No pattern)] in the four colors (White, Red, Green and Blue).
Note:
· Because the above patterns can be displayed by each color without test equipment such as PC or SG, use it for simplified
adjustments by your eyes and so on.
4.1. Procedure to display test patterns
Select "TEST PATTERN" on "EXT OPTION" menu and press "ENTER" button on the main unit or remote control unit.
Note:
· On the test pattern screen, pressing the up-arrow "
the left-arrow "
" or right-arrow "" button the color selection (White / Red / Green / Blue).
4.2. Canceling the test pattern display
Press "MENU" button on the main unit or remote control unit.
" or down-arrow "" button allows the test pattern selection and
5 Flicker Adjustment Mode
If replacing the optical parts (LCD Panel / LCD block) of this projector and/or A-P.C.Board (assembly), enter the flicker adjustment
mode and minimize the flicker.
5.1. Procedure to enter the adjustment mode
Select "FLICKER ADJUST" on "EXT OPTION" menu and press "ENTER" button on the main unit or remote control unit.
Note:
"DESK setting (blue)" is displayed when entering the adjustment mode.
5.2. Adjustment Display and Contents
· Setting value is increased and decreased with the right-arrow "" and left-arrow "" button s.
"
": Decrease, "": Increase
−
− Adjust the setting value to minimize the flicker on the screen.
− −
−
− Execute the adjustment by 6 patterns below.
− −
·The pattern (adjustment display) is switched with the up-arrow "
"
": Forward direction, "": Reverse direction
−
− There are 6 patterns of "DESK setting (blue)", "DESK setting (red)", "DESK setting (green)", "CEILING setting (blue)",
− −
"CEILING setting (red)" and "CEILING setting (green)".
−
− The setting value is saved into this projector when the pattern is switched.
− −
" and down-arrow "" buttons.
5.3. Canceling the flicker adjustment mode
Press "MENU" button on the main unit or remote control unit.
Note:
When "MENU" button is pressed, the setting value at that time is saved into this projector and the adjustment mode is canceled.
The serial connector which is on the back connector panel of the projector conforms to RS-232C standard. This projector can
be controlled by a PC which is connected as shown in "6.1. Connection".
For controlling this projector by a PC, requires communication software on the market, and inputs control commands according
to Communication Settings and Control Commands below.
6.1. Connection
Note:
Use a proper communication cable which is suitable for the PC to connect SERIAL connector and the PC.
6.2. Pin Layout and Signal Names for SERIAL Connector
Pin No Signal NameContents
1---NC
2TXDTransmit data
3RXDReceive data
4---NC
5GNDGround
6DSR
7CTSConnected internally
8RTS
9---NC
6.3. Communication Settings
Signal LevelContentsDescription
Sync. methodAsynchronousSynchronizes every 1 character (8 bits)
Baud rateConforms to9 600 bpsData transfer speed
ParityRS-232CNoneError detection method
Character lengthstandard8bitsNumber of bit composing 1 character
Stop bit1bitUses stop bit when asynchronous method
X parameterNot used
S parameterNot used
6.6. Signal Selector Connecting Cable Specifications
When connecting to a signal selector (ex. TW-SWS62J), use a cable with specifications below.
Connecting method: Connects a video signal cable from the signal selector to "VIDEO IN", and an RGB signal cable to
"COMPUTER 1 IN".
Note:
Set VP control terminal switch of the signal selector to VP TYPE "B".
·Be sure to unplug the power cord from the power outlet before disassembling this projector.
Caution:
·While turning over a printed circuit board, be sure to put a insulating material under it to prevent a short circuit.
·Printed circuit boards and wires must not be pulled forcibly, but be handled carefully.
·Connectors also must be handled carefully.
·When reassembling, replace used adhesive tape with new one (Do not re-use used tape).
·After repairing this projector, be sure to put back the wires and connectors to the original condition.
·Service or repair the product according to service information on the service manual, etc. so that a fire, injury or electric
shock caused by an improper repair may not occur.
1. Do not modify equipments, components and materials when attempting to service or repair.
2. Do not repair nor connect wires even in case of a part of the disconnection when the wiring unit is supplied as a
replacement parts, replace the wiring unit (complete).
3. For a fasten terminal (push-in type terminal), pull out or insert straightly without twisting it.
4. When the fuse has blown, do not turn on the power supply replacing only the fuse because the secondary disaster of
fumes, fire or other hazards is expected. Turn on the power supply after doing the confirmation and measures of
defective causes (structure and circuit, etc.).
5. After the service or the repair is completed, confirm the operation of the product is normal.
7.1. Printed Circuit Board and Main Parts Location
Electrical Parts
Optical Parts
12
7.2. Removal of Upper Case
1. Turn the projector upside down.
2. Unscrew the 8 screws.
3. Return the projector to the normal position.
4. Lift the upper case upward.
5. Disconnect the flexible cable between D-P.C.Board and RP.C.Board, then remove the upper case.
1. Remove the block of Analysis Block, LCD Block and
Projection Lens according to the steps 1 through 8 in the
section 7.17. "Removal of Analysis Block and Projection
Lens".
2. Unscrew the 1 screw and remove the L-P.C.Board.
7.9. Removal of PI-P.C.Board
1. Remove the ARF drive unit according to the section 7.27.
"Removal of ARF Drive Unit".
2. Unscrew the 1 screw and remove the PI-P.C.Board.
1. Remove the upper case according to the section 7.2.
"Removal of Upper Case".
2. Open the front door.
3. Unscrew the 1 screw and remove the front cover (inside).
4. Unscrew the 1 screw and remove the grounding terminal.
5. Unscrew the 2 screws and remove the power separation
wall.
6. Remove the front cover.
Note:
·S1-P.C.Board and S2-P.C.Board are attached.
7.10. Removal of R-P.C.Board
1. Remove the upper case according to the section 7.2.
"Removal of Upper Case".
2. Disconnect the connector (S4 or A27) between RP.C.Board and A-P.C.Board.
3. Unscrew the 1 screw and remove the R-P.C.Board.
7. Disconnect the connector between S1-P.C.Board and S2P.C.Board.
8. Unscrew the 5 screws and remove the S1-P.C.Board.
7.12. Removal of S2-P.C.Board
1. Remove the front cover according to the steps 1 through 6
in the section 7.11. "Removal of S1-P.C.Board".
2. Disconnect the connector between S1-P.C.Board and S2-
· When installing the lamp unit in the main unit, place
it in a specified position and press the right and left
sides of the lamp unit (arrow positions shown in the
figure below), and confirm the lamp unit is inserted
securely.
Then, tighten the 2 screws fixing the lamp unit, and
attach the lamp unit cover.
7.15. Removal of P-Module
1. Remove the power unit according to the steps 1 through 11
in the section 7.14. "Removal of B/Q Module".
2. Unscrew the 4 screws and remove the P-Module.
7.16. Removal of Lamp Unit
1. Loosen the 2 screws until they idle, remove the lamp unit
cover.
7.17. Removal of Analysis Block
and Projection Lens
1. Remove the lamp unit according to the section 7.16.
"Removal of Lamp Unit".
2. Remove the A-P.C.Board block according to the steps 1
through 4 in the section 7.3. "Removal of A-P.C.Board".
3. Open the front door.
4. Unscrew the 1 screw and remove the front cover (inside).
5. Unscrew the 1 screw and remove the grounding terminal.
2. Loosen the 2 screws until they idle, remove the lamp unit
with the handle.
6. Unscrew the 2 screws and remove the power separation
wall.
· Since the ID-tag seal is pasted to the FPC of LCD Panel,
(R), (G) or (B) can be easily identified by the color of the
seal.
· Finally, identify the panel color by the part number printed
on the FPC.
6. Reassemble the projector in the reverse order of
disassembling, but leave the upper case and the screws
fixing the A-P.C.Board block as they are removed.
7. Adjust the convergence according to the section 8.4.
"Convergence Adjustment".
8. After the adjustment, while paying attention not to vary the
adjusting result, tighten the 2 screws fixing the panel
attachment with a hexagon head wrench.
Notes:
· Prepare a hexagon head wrench processed short.
9. Reassemble the projector as it was.
7.21. LCD Panel Combination
·Part number is printed on the FPC of LCD Panel.
·When replacing LCD Panel, use a component which has
the same part number as the original.
LCD
panel
RL5BDAYY00068
GL5BDAYY00072
BL5BDAYY00070
Combination1Combination2
(L3P07X-65G01)
(L3P07X-66G01)
(L3P07X-65G01)
L5BDAYY00071
(L3P07X-66G01)
L5BDAYY00069
(L3P07X-65G01)
L5BDAYY00073
(L3P07X-66G01)
7.22. Replacement of Incidence
Polarizer (G)
1. Remove the A-P.C.Board block according to the steps 1
through 4 in the section 7.3. "Removal of A-P.C.Board".
2. Mark positions of the incidence polarizer (G).
Note:
· Mark accurately as possible because the marks will
be used for resetting the incidence polarizer
position.
3. Unscrew the 1 screw and remove the incidence polarizer
(G).
4. Attach a new incidence polarizer (G) and align it with the
mark.
5. Tighten the 1 screw with care not to move the incidence
·Never unplug the power cord until the power indicator on the projector illuminates red.
·To maintain and ensure safety, always use the designated components for replacement parts.
·If removing any clamps, lead wires or connectors, always place them back in their proper locations.
·Be careful not to damage the lead wires or components when using a soldering iron or similar tool.
8.3. Setting Before Adjustment
·Set up the projector to obtain the projection distance below.
·Turn the zoom ring of the projector to obtain the largest size of the picture.
8.4. Convergence Adjustment
Execute this adjustment when replacing the LCD panel (B) .
8.4.1. Tools to be used
Service Kit : This kit is composed of 3 extension flexible cables.
Note:
·Consult your dealer or Authorized Service Center for the service kit.
8.4.2. Preparation
1. Loosen 2 screws fixing the panel adjuster and 2 screws fixing the panel attachment, then tighten the 4 screws temporarily just
until the LCD panel can be shifted by your fingers.
· See figures in the section 7.19. "Replacement of LCD Panel (B)" for 2 screws fixing the panel adjuster and 2 screws
fixing the panel attachment.
2. Reassemble the projector in the reverse order of disassembling, but leave the upper case and the screws fixing the AP.C.Board block as they are removed.
3. Disconnect the connector between L-P.C.Board and A-P.C.Board (A26).
4. Connect the service kit (extension flexible cables).
· Each flexible cable of LCD Panels (R/G/B) - Connectors (A1/A2/A3) on A-P.C.Board
5. Covering with an insulator (cloth or the like) to prevent a short circuit, set the A-P.C.Board block on the main unit.
Note:
·Handle with care not to apply external force to connecting parts which connect the main unit and A-P.C.Board.
8.4.3. Adjustment Procedure
Prepare 2 pieces of thick black paper (23 mm × 100 mm) that can be shaded.
· Cover and shade LCD panels (R) and (G) with the paper.
1. Display the green crosshatch pattern and adjust the lens focus.
2. Display green and blue crosshatch patterns.
3. Adjust focus by shifting the panel adjuster for LCD panel (B) back and forth, then tighten the 2 screws.
4. Adjust the LCD panel (B) position so that the vertical center of blue crosshatch pattern is overlapped with the vertical center of
green crosshatch pattern.
5. Adjust the LCD panel (B) position so that the horizontal center of blue crosshatch pattern is overlapped with the horizontal
center of green crosshatch pattern.
6. Correct the tilt of the blue crosshatch pattern by adjusting the LCD panel (B) position.
7. Display green, red and blue crosshatch patterns and confirm the convergence. If it is necessary, fine adjust the convergence
so that the blue crosshatch pattern is overlapped with green one.