Panasonic PTAX200U - LCD PROJECTOR User manual

©2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
PT-AX200U
PT-AX200E
LCD Projector
ORDER NO. VED0709381C0
D10
All manuals and user guides at all-guides.com
all-guides.com

2
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

3
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

1 Safety Precautions 5
1.1. General Guidelines 5
1.2. Leakage Current Check 5
1.3. UV Precaution and UHM Lamp Precautions 5
2 Ext Option 6
2.1. Procedure to enter EXT OPTION 6
2.2. EXT OPTION Menu and Functions 6
2.3. Canceling EXT OPTION 6
3 Self-Check Mode 7
3.1. Procedure to enter the self-check mode 7
3.2. Self Check Display and Contents 8
3.3. Canceling the self-check mode 9
4 Flicker Adjustment Mode 9
4.1. Procedure to enter the adjustment mode 9
4.2. Adjustment Display and Contents 9
4.3. Canceling the flicker adjustment mode 9
5 Using the SERIAL Connector 10
5.1. Connection 10
5.2. Pin Layout and Signal Names for SERIAL Connector 10
5.3. Communication Settings 10
5.4. Basic Format 11
5.5. Control / Query Commands 11
5.6. Communication Cable Specifications 13
5.7. Signal Selector Connecting Cable Specifications 13
6 Disassembly Instructions 14
6.1. Printed Circuit Board and Main Parts Location 14
6.2. Removal of Upper Case 15
6.3. Removal of A-P.C.Board 15
6.4. Removal of R-P.C.Board and S-P.C.Board 15
6.5. Removal of K-P.C.Board 15
6.6. Removal of B/Q-Module 16
6.7. Removal of P-Module 16
6.8. Removal of Lamp Unit 16
6.9. Removal of Analysis Block 17
6.10. Removal of LCD Block 17
6.11. Removal of Projection Lens 18
6.12. Replacement of LCD Panel (B) 18
6.13. LCD Panel Discrimination 19
6.14. LCD Panel Combination 19
6.15. Replacement of Projection Polarizer 19
6.16. Replacement of Incidence Polarizer 20
6.17. Replacement of PBS Array (Analysis Block) 20
6.18. Removal of Iris Unit 21
7 Measurement and Adjustments 22
7.1. Adjustment Procedure Flowchart 22
7.2. Cautions for Adjustment 22
7.3. Setting Before Adjustment 22
7.4. Convergence Adjustment 22
7.5. Lighting Area Adjustment 24
7.6. Software for Adjustment 26
7.7. Flicker Adjustment 29
7.8. Input Level Adjustment (RGB) 30
8 Troubleshooting 31
9 Interconnection Block Diagram 41
9.1. Interconnection Block Diagram (1/2) 41
9.2. Interconnection Block Diagram (2/2) 42
10 Block Diagram 43
10.1. Power Supply 43
10.2. Signal Processing (1/2) 44
10.3. Signal Processing (2/2) 45
11 Schematic Diagram 47
11.1. A-P.C.Board (1/7) 48
11.2. A-P.C.Board (2/7) 49
11.3. A-P.C.Board (3/7) 50
11.4. A-P.C.Board (4/7) 51
11.5. A-P.C.Board (5/7) 52
11.6. A-P.C.Board (6/7) 53
11.7. A-P.C.Board (7/7) 54
11.8. K-P.C.Board 55
11.9. R-P.C.Board, S-P.C.Board, H-P.C.Board, M1-P.C.Board,
M2-P.C.Board 56
11.10. B-Module (1/2) 57
11.11. B-Module (2/2) 58
12 Circuit Boards 59
12.1. A-P.C.Board 59
12.2. R-P.C.Board, S-P.C.Board 60
13 Terminal guide of ICs and transistors 61
14 Exploded Views 62
15 Replacement Parts List 66
CONTENTS
Page Page
4
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

1 Safety Precautions
1.1. General 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 the service. If a short
circuit is found, replace all the parts overheated or
damaged by the short circuit.
· After the service, all the protective devices such as
insulation barriers, insulation papers, shields, and isolation
R-C combinations must be properly installed.
· After the service, check the leakage current to prevent the
customer from getting an electric shock.
1.2. Leakage Current Check
1.Prepare the measuring circuit as shown in Fig.1.
Be sure to use a voltmeter having the performance
described in Table 1.
Fig. 1
Table 1
Fig. 2
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 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. (See Fig.
3)
Fig.3
5
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

2 Ext Option
This projector has EXT OPTION in addition to standard on-screen menus.
· There are SELF CHECK and FLICKER ADJUST for service, etc.
2.1. Procedure to enter EXT OPTION
1.When the projector is power ON, press "POWER" button on the main unit or remote control unit to display "POWER OFF"
confirmation screen.
2.Press the right-arrow " " button to select "CANCEL" in the "POWER OFF" confirmation screen.
3.On the main unit or remote control unit, press the buttons in order of up-arrow " ", down-arrow " ", up-arrow " ",
down-arrow " " and "ENTER".
(When the "ENTER" button is pressed, "EXT OPTION" menu is displayed.)
2.2. EXT OPTION Menu and Functions
· FAN FULLMODE
Setting the cooling fan motor rotation speed
− − −
− Switching ON "FAN FULLMODE", the rotation level of the fan becomes high-speed rotation (fixed). Moreover, when "FAN
FULLMODE" is ON, changing "ALTITUDE" in OPTION becomes impossible (setting FAN FULLMODE is given priority more
than ALTITUDE).
· AUTO SETUP
Setting AUTO SETUP mode
− − −
− NORMAL: To set the normal mode (the dot clock is adjusted strictly)
− − −
− SPECIAL: To set the special mode (the dot clock is adjusted roughly)
* Do not change the initial setting (NORMAL).
· SELF CHECK
To enter the self-check mode
· FLICKER ADJUST
To enter the flicker adjustment mode
· 525i SD
When non-standard signal of 525i/625i is inputted (AV amplifier, etc.), synchronization might be disordered according to
connected equipment. In this case, set 525i SD to ON.
· 525p OS
When 525p/625p signal is inputted, reflection noise (vertical striated beat) might be generated according to connected
equipment. In this case, set 525p OS to ON. However, the resolution decreases a little.
· HPLL
When non-standard signal of VIDEO/S-VIDEO is inputted (VTR, VHD, etc.), horizontal synchronization might be disordered
according to connected equipment. In this case, set HPLL to OFF.
2.3. Canceling EXT OPTION
Press "MENU" button on the main unit or remote control unit.
6
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com
all-guides.com

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.
7
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

3.2. Self Check Display and Contents
8
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

3.3. Canceling the self-check mode
Press "MENU" button on the main unit or remote control unit.
4 Flicker Adjustment Mode
If replacing the optical parts (LCD Panel / LCD block) or A-P.C.Board of this projector, enter the flicker adjustment mode and
minimize the flicker.
4.1. 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 (red)" is displayed when entering the adjustment mode.
4.2. Adjustment 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.
"": Forward direction, " ": Reverse direction
− − −
− There are 6 patterns of "DESK setting (red)", "DESK setting (blue)", "DESK setting (green)", "CEILING setting (red)",
"CEILING setting (blue)" and "CEILING setting (green)".
− − −
− The setting value is saved into this projector when the pattern is switched.
4.3. 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.
9
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

Pin No Signal Name Contents
3RXD Receive data
4GND Ground
5TXD Transmit data
1---
2--- Connected internally
6---
7--- NC
8--- NC
5 Using the SERIAL Connector
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 "5.1. Connection".
For controlling this projector by a PC, requires communication software on the market, and inputs control commands according
to communication settings and basic format below.
5.1. Connection
Note:
Use a proper communication cable which is suitable for the PC to connect the optional serial adapter, which is connected with
SERIAL connector of this projector, and the PC.
5.2. Pin Layout and Signal Names for SERIAL Connector
5.3. Communication Settings
Signal Level Contents Description
Sync. method Asynchronous Synchronizes every 1 character (8 bits)
Baud rate Conforms to 9 600 bps Data transfer speed
Parity RS-232C None Error detection method
Character length standard 8bits Number of bit composing 1 character
Stop bit 1bit Uses stop bit when asynchronous method
X parameter Not used
S parameter Not used
10
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

5.4. Basic Format
The data sent from the PC to the projector is transmitted in the format shown below.
Notes:
· 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.
5.5. Control / Query Commands
Control Commands
11
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com
all-guides.com

Query Commands
Parameters
[Example]
When controls the audio volume to +30 by a PC
(Sends commands as the following:)
· When a command which does not require parameters is sent, the colon (:) is not required.
12
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

5.6. Communication Cable Specifications
5.7. 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 "PC IN".
Note:
Set VP control terminal switch of the signal selector to VP TYPE "B".
13
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

6 Disassembly Instructions
Warning:
· 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.
6.1. Printed Circuit Board and Main Parts Location
Electrical Parts
Optical Parts
14
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

6.2. Removal of Upper Case
1.Turn counterclockwise the shift lever by about one and a
half rotations (540 ° ) from the position in which it is locked,
and pull it forward to remove.
2.Turn the projector upside down.
3.Unscrew the 8 screws.
4.Return the projector to the normal position.
5.Remove the upper case.
6.3. Removal of A-P.C.Board
1.Remove the upper case according to the section 6.2.
"Removal of Upper Case".
2.Unscrew the 3 screws and remove the connector cover.
3.Disconnect all connectors to/from the A-P.C.Board.
4.Unscrew the 2 screws and remove the A-P.C.Board block.
5.Unscrew the 9 screws and remove the connector metal
fittings.
6.4. Removal of R-P.C.Board and
S-P.C.Board
1.Remove the upper case according to the section 6.2.
"Removal of Upper Case".
2.Unscrew the 5 screws and remove the R-P.C.Board and S-
P.C.Board.
Note:
· They are connected with the connector. Be careful
handling.
3.Disconnect the connector and separate them.
6.5. Removal of K-P.C.Board
1.Remove the A-P.C.Board block according to the steps 1
through 4 in the section 6.3. "Removal of A-P.C.Board".
2.Unscrew the 1 screw and release the grounding terminal.
15
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

3.Unscrew the 2 screws and remove the K-P.C.Board block.
6.6. Removal of B/Q-Module
1.Remove the upper case according to the section 6.2.
"Removal of Upper Case".
2.Unscrew the 2 screws and remove the lamp unit terminal.
3.Unscrew the 2 screws and release the 2 grounding
terminals.
4.Unscrew the 3 screws and remove the power block (B/Q-
Module and P-Module).
5.Unscrew the 1 screw and separate the B/Q-Module block
and P-Module block.
6.Unscrew the 2 screws.
7.While pressing to shut each hook of the 2 resinous stands,
remove the B/Q-Module.
6.7. Removal of P-Module
1.Remove the P-Module according to the steps 1 through 5 in
the section 6.6. "Removal of B/Q Module".
2.Unscrew the 2 screws.
3.While pressing to shut each hook of the 2 resinous stands,
remove the P-Module.
6.8. Removal of Lamp Unit
1.Turn the projector upside down.
2.Loosen the 2 screws until they idle and remove the lamp
unit cover.
16
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com
all-guides.com

3.Loosen the 2 screws until they idle, remove the lamp unit
with the handle.
Note:
· 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 lamp unit cover.
6.9. Removal of Analysis Block
1.Remove the lamp unit according to the section 6.8.
"Removal of Lamp Unit".
2.Remove the A-P.C.Board block according to the steps 1
through 4 in the section 6.3. "Removal of A-P.C.Board".
3.Unscrew the 1 screw and remove the thermofuse
attachment.
4.Unscrew the 2 screws and remove the lamp unit terminal.
5.Unscrew the 3 screws and remove the lamphouse.
6.Unscrew the 1 screw and release the grounding terminal.
7.Unscrew the 3 screws and remove the block of Analysis
Block, LCD Block and Projection Lens Block.
8.Unscrew the 2 screws and remove the LCD block.
9.Unscrew the 4 screws and remove the projection lens block
(with shift mechanism).
6.10. Removal of LCD Block
1.Remove the A-P.C.Board block according to the steps 1
through 4 in the section 6.3. "Removal of A-P.C.Board".
17
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

2.Unscrew the 2 screws and remove the LCD block.
Note:
· Be careful not to touch the surface of prism and LCD
panel.
6.11. Removal of Projection Lens
1.Remove the projection lens block (with shift mechanism)
according to the section 6.9. "Removal of Analysis Block".
2.Unscrew the 4 screws and separate the projection lens and
the shift mechanism.
6.12. Replacement of LCD Panel (B)
1.Remove the LCD block according to the section 6.10.
"Removal of LCD Block".
2.Remove the shading sheet.
Note:
· The shading sheet is adhered with the adhesive
sheet. Do not touch the adhesive sheet of the
shading sheet because it is adhered on former
position after the LCD panel is replaced.
3.Cut the 4 LCD panel installation spindles at the position A
and remove the LCD panel (B).
4.Cut the 4 LCD panel installation spindles at the position B
and remove them.
Notes:
· 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
less.
5.Attach the base plate with 4 screws.
6.Tighten the 2 screws temporarily just until new LCD panel
(with the panel attachment and panel adjuster) can be
shifted by your fingers.
Note:
· The panel adjustment fittings set (panel adjuster,
panel attachment and base plate) is an option for
service.
18
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

7.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.
8.Adjust the convergence according to the section 7.4.
"Convergence Adjustment".
9.After the adjustment, while paying attention not to vary the
adjusting result, tighten the 2 screws (upper) fixing the
panel attachment temporarily with a hexagon head wrench.
Notes:
· Prepare a hexagon head wrench processed short.
10.Remove the LCD block again.
11.Tighten the 3 screws fixing the panel attachment.
12.Adhere the shading sheet as it was.
13.Reassemble the projector as it was.
6.13. LCD Panel Discrimination
ID-tag seal color LCD panel
Red LCD panel (R)
Blue LCD panel (B)
(No seal) LCD panel (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.
6.14. 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 Combination1 Combination2
RL5BDAYY00020
(L3D07H-65G20) L5BDAYY00023 (L3D07H-66G20)
GL5BDAYY00024
(L3D07H-66G20) L5BDAYY00021 (L3D07H-65G20)
BL5BDAYY00022
(L3D07H-65G20) L5BDAYY00025 (L3D07H-66G20)
6.15. Replacement of Projection
Polarizer
· The procedure is described as an example of projection
polarizer (B).
1.Remove the LCD block according to the section 6.10.
"Removal of LCD Block".
2.Remove the projection polarizer which requires replacing.
(The projection polarizer is secured with adhesive tape.)
Notes:
· Be careful not to damage peripheral components
(prism, LCD panel, etc.).
· Use tweezers.
3.Install new projection polarizer.
a.Put adhesive tape on the projection polarizer.
b.Stick the projection polarizer on the specified position.
Notes:
· Align the projection polarizer with the guides
(lower, side) of LCD block.
· Be careful not to touch the surface of projection
polarizer.
· Use tweezers.
c.Press the adhesive part and secure the projection
polarizer.
19
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com

6.16. Replacement of Incidence
Polarizer
The procedure is described as an example of incidence
polarizer (G).
1.Remove the A-P.C.Board block according to the steps 1
through 4 in the section 6.3. "Removal of A-P.C.Board".
2.Mark positions of the incidence polarizer.
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 and align it with the mark.
5.Tighten the 1 screw with care not to move the incidence
polarizer position.
6.17. Replacement of PBS Array
(Analysis Block)
1.Remove the A-P.C.Board and lamphouse according to the
steps 2 through 5 in the section 6.9. "Removal of Analysis
Block ".
2.Unscrew the 2 screws and remove the LCD block.
Note:
· Be careful not to touch the surface of prism and LCD
panel.
3.Unscrew the 3 screws and remove the analysis case
(upper).
Note:
The incidence polarizer (R, G and B) are installed in the
analysis case (upper). Be careful not to shift the
installation position nor be damaged.
20
PT-AX200U / PT-AX200E
All manuals and user guides at all-guides.com