11General Guidelines

For continued safety, no modification of any circuit must be attempted. Unplug the power cord from the power outlet before disassembling this projector. Use correctly the supplied power cord and must ground it. It is advisable to use an isolation transformer in the AC power line before the service. Be careful not to touch the rotation part (cooling fan, etc.) of this projector when you service with the upper case removed and the power supply turned ON. Observe the original lead dress during...

12Leakage Current Check

Prepare the measuring circuit as shown in Fig. 1. Be sure to use a voltmeter having the performance described in Table 1. Weighted lekage current Vb 500 (A) Accuracy < 2 Input resistance > 1 MQ. Input capacitance < 200 pF Frequency range 15 Hz to 1 MHz 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...

13 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 direct-eye 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....

22Ext Option Menu and Functions

Switching ON OFF FREEZE on-screen display Switching ON OFF Realtime Keystone reference level setting Note - Normally, do not select. (Angle reset data will be rewritten.) Setting the cooling fan motor rotation speed - Switching ON FAN FULL MODE, the rotation level of the fan becomes high-speed rotation (fixed). Moreover, when FAN FULL MODE is ON, changing HIGHLAND in OPTION becomes impossible (setting FAN FULL MODE is given priority more than HIGHLAND). - STANDARD To set the normal mode (the...

32 Self Check Display and Contents

Display example * This display is an example and the display contents depend on the input signal mode. The result of items G SAVED and U SAVED, OK is displayed for OK and NG is displayed for NG. The result of items TEMP, FAN, LAMP and 2000H, the OK display becomes red characters when shutting down because abnormality happened last time. Different display according to the input signal Around Air Outlet (A D conversion value 0 - 255) Around Air Inlet (A D conversion value 0 - 255) Around Tilt...

52Adjustment Display and Contents

Setting value is increased and decreased with the right-arrow and left-arrow buttons. 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 and down-arrow buttons. A. 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...

63 Communication Settings

Synchronizes every 1 character (8 bits) Uses stop bit when asynchronous method The data sent from the PC to the projector is transmitted in the format shown below. If sending multiple commands, check that a call back has been received from the projector for 1 command before sending the next command. When a command which does not require parameters is sent, the colon ( ) is not required.

65 Control Query Commands

(Parameter format is shown in < (Parameter format is shown h< > ) *1 Do not transmit the PON, POF, OSH and or OLP commands continuously in a short time. The lamp may be damaged and or cause malfunctions. *2 The OLP command is invalid at a no signal. *3 If a command except OSH is sent from the PC during SHUTTER mode, the ER401 command will be sent from the projector to the PC, and the projector is going to return to normal operating mode. Call back from Projector (Parameter format is shown...

67 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 RGB1 IN At the signal selector D-sub 9p (male) At the serial adapter (DCE) D-sub 9p (male) 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...

710 Removal of BQModule

Remove the lamp unit according to the section 7.12. Removal of Lamp Unit. 2. Remove the A-P.C.Board block according to the steps 1 through 6 in the section 7.3. Removal of A-P.C.Board. 3. Unscrew the 2 screws and remove the lamp unit terminal. 4. Unscrew the 2 screws and remove the exhaust fan . 6. Unscrew the 3 screws and remove the power box. 7. While pressing to shut each hook of the 4 resinous stands, remove the B Q-Module.

712 Removal of Lamp Unit

Loosen the 2 screws until they idle, remove the lamp unit cover. 3. Loosen the 2 screws until they idle, remove the lamp unit with the handle. When installing the lamp unit (or a new one) in the main unit, place it in a specified position and press the connector side and the opposite side 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...

713 Removal of Analysis Block and Lens

Remove the lamp unit according to the section 7.12. Removal of Lamp Unit. 2. Remove the A-P.C.Board block according to the steps 1 through 6 in the section 7.3. Removal of A-P.C.Board. 3. Unscrew the 3 screws and remove the analysis block, LCD block and lens. 4. Unscrew the 4 screws A and remove the lens. 5. Unscrew the 2 screws B and remove the LCD block (the analysis block remains).

715 Replacement of LCD Panel B

Remove the LCD block according to the section 7.14. Removal of LCD Block. Be careful not to touch the surface of prism and LCD panel. 2. Cut the 4 LCD panel installation spindles at the position A and remove the LCD panel. 3. Cut the 4 LCD panel installation spindles at the position B and remove them. Work carefully not to apply external force around the spindle part by using a cutter, cutting nipper or the like for cutting the spindle. Adjust the height after the spindle is cut to 1 mm or...

716 LCD Panel Discrimination

LCD panel (R) LCD panel (B) LCD panel (G) The incidence polarizer (G) is installed in the analysis case (upper). Handle with care not to apply external force to the incidence polarizer (G). 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.

719 Replacement of Incidence Polarizer G

Remove the A-P.C.Board block according to the steps 1 through 6 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 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 polarizer position.

720 Replacement of Projection Polarizer

The procedure is described as an example of projection polarizer (B). 1. Remove the LCD block according to the section 7.14. Removal of LCD Block. 2. Remove the projection polarizer which requires replacing. (The projection polarizer is secured with adhesive tape.) Be careful not to damage peripheral components (prism, LCD panel, etc.). 3. Install new projection polarizer. a. Put adhesive tape on the projection polarizer. b. Stick the projection polarizer on the specified position. Notes Align...

73 Removal of APCBoard

Remove the upper case according to the section 7.2. Removal of Upper Case. 2. Unscrew the 1 screw on the backside and remove the connector cover. 3. Unscrew the 1 screw fixing the connector metal fittings on the backside. 4. Unscrew the 4 screws and remove the lamp shield. 5. Disconnect the connectors from to the A-P.C.Board block with the S2- and G-P.C.Boards. 6. Unscrew the 2 screws and remove the A-P.C.Board block. 7. Disconnect the flexible cable from connector A20 on A-P.C.Board. 8....

77 Removal of KPCBoard

Remove the analysis block, LCD block and lens according to the steps 1 through 3 in the section 7.13. Removal of Analysis Block and Lens. 2. Unscrew the 2 screws and remove the lamp unit terminal. 3. Unscrew the 2 screws and remove the socket holder. 4. Unscrew the 1 screw and separate the socket holder and thermofuse attachment fittings. 5. Unscrew the 2 screws and remove the K-P.C.Board.

84 Convergence Adjustment

Execute this adjustment when replacing the LCD panel (B) . Service Kit This kit is composed of 3 extension flexible cables and 1 connector extension cable. Note Consult your dealer or Authorized Service Center for the service kit. 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 7.15. Replacement of LCD Panel (B) for 2 screws fixing the...

85 Lighting Area Adjustment

Service Kit This kit is composed of 3 extension flexible cables and 1 connector extension cable. Note Consult your dealer or Authorized Service Center for the service kit. 1. Remove the connector cover and lamp shield according to the steps 1 through 4 in the section 7.3. Removal of A-P.C.Board 3. Connect the service kit (extension cables). Each flexible cable of LCD Panels (R G B) - Connectors (A1 A2 A3) on A-P.C.Board PBS fan connector - Connector (A19) on A-P.C.Board 4. Covering with an...

86 Software for Adjustment 861 Outline

This projector needs computer-aided adjustments. After the software adjustments, this projector must be turned off and on again to memorize the settings. Connect the cable between the projector and a PC as shown below. Updating the software will change the version number. 1. Run software program by the keyboard entry. Note Use the software program as below. Adjustment Tool LB50 LB60 2. The first menu is Port and Model selection menu. 3. Adjust the projector by selecting the necessary item from...

88Input Level Adjustment

Executes automatic sub contrast and sub brightness adjustments, then closes this dialog. Cancel PC, RGB Signal Generator, Software for Adjustment 1. Display the input level adjustment RGB menu. 2. Input a window pattern signal to PC IN 1 connector. Note Use approx. 15 window pattern as follows. Black background (screen width) White window width 2 1 Black background (screen height) White window height 3 1 Use the window pattern of XGA (1 024 x 768). 3. Click the OK button.

89 Model Information Setup 891 Adjustment Menu

Selects the corresponding model name. OK Executes model information setup, then closes this dialog. Cancel Set the projector into standby mode (POWER button on the projector control panel illuminated red), and execute the following procedure. 1. Display the model information setup menu. 2. Select the corresponding model name.

9 Troubleshooting

The letters in the left of the inspection items indicate the P.C.Boards or Modules related to their respective descriptions. Note The letter of the alphabet indicates the PC.Board or Module name. (Example) A A-P.C.Board, B B-Module If replacing A-P.C.Board (assembly), read the ROM data from the old PC.Board and write it in the new one according to the section 8.6. Software for Adjustment. At this time, if the readout from the old PC.Board does not succeed, remove IC1011 and IC1017 from the old...

Trademark Acknowledgements

VGA and XGAare trademarks of International Business Machines Corporation. Macintosh is a registered trademark of Apple Computer, inc. S-VGA is a registered trademark of the Video Electronics Standards Association. All other trademarks are the property of the various trademark owners. if using of this projector at high elevations (above 1 400 m), set HIGHLAND to ON. (Refer to Option settings in Operating Instructions.) Failure to observe this may cause malfunctions. Never use this projector at...

Important Safety Notice

There are special parts used in Panasonic LCD Projectors which are important for safety. These parts are shaded on the schematic diagram. It is essential that these critical parts should be replaced with manufacturer's specified parts to prevent shock, fire, or other hazards. Do not modify the original design without permission of PANASONIC BROADCAST & TELEVISION SYSTEMS COMPANY. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part...

Schematic Diagram for Model PTLB60Nteea Lb60EA LB55Nteea Lb55EA

Components identified by the international symbol J have special characteristics important for safety. When replacing any of these components, use only the manufacturer's specified ones. All the resistors are carbon 1 4W resistors, unless marked as follows The unit of resistance is an OHM Qj (K 1 000 M 1 000 000). Temperature Compensation Polyester Metalized Polyester X Polypropylene Bipolar Dipped Tantalum < D Z-Type The unit of inductance is a H, unless otherwise noted. The voltage is...

721 Replacement of PBS Array Analysis Block

Remove the analysis case upper according to the steps 1 through 3 in the section 7.18. Replacement of Incidence Polarizer R and B . 3. Install new PBS array. Note Be careful not to mistake the direction inside and outside, upper and lower . Be careful not to touch the surface of PBS array.

123 APCBoard

TXANP01VKB7 PT-LB60NTU E EA, PT-LB55NTE EA TXANP01QBYZ PT-LB60U EA, PT-LB55EA TXANP01VKB7 PT-LB60NTU E EA, PT-LB55NTE EA TXANP01QBYZ PT-LB60U EA, PT-LB55EA R LCD PANEL PANEL PIN NO REVERSE FDR CONNECTOR PIN NO K1MY30BA0006 EPSON PANEL amp SIDE TYPE CONNECTOR s 5 it I 8 8 I 1 S I a Us I II j I g g g I 55 R LCD PANEL PANEL PIN NO REVERSE FDR CONNECTOR PIN NO K1MY30BA0006 EPSON PANEL amp SIDE TYPE CONNECTOR ruui fuui uui in un nri nnnnn niuuin nnnnn J LrmJ LruiJ Ltltl J LnJ LnJ Ln_ J UmhJ uiiu urn

Ptlb55ea

2006 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. The service technician is required to read and follow the Safety Power supply 100 V - 240 V AC, 50 Hz 60 Hz Power consumption 300 W During standby when fan is stopped Approx. 3 W Amps 3,5 A -1.8 A LCD panel Panel size diagonal PT-LB60NT 7LB60 0.8 type 20.32 mm PT-LB55NT LB55 0.7 type 17.78 mm Aspect ratio 4 3 Micro lens array Available Display method 3 transparent LCD...