Panasonic PT-AE700U User manual

©2004 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
PT-AE700U
PT-AE700E
LCD Projector
ORDER NO. VED0409357C0
D10

2
PT-AE700U / PT-AE700E

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
CONTENTS
Page Page
3
PT-AE700U / PT-AE700E

3.2. Self Check Display and Contents 7
3.3. Canceling the self-check mode 8
4 Service Mode 9
4.1. Procedure to enter the service mode 9
4.2. Canceling the service mode 9
5 Flicker Adjustment Mode 9
5.1. Procedure to enter the adjustment mode 9
5.2. Adjustment Display and Contents 9
5.3. Canceling the flicker adjustment mode 9
6 Disassembly Instructions 10
6.1. Printed Circuit Board and Main Parts Location 10
6.2. Removal of Upper Case 11
6.3. Removal of A-P.C.Board 11
6.4. Removal of S-P.C.Board 11
6.5. Removal of J-P.C.Board (PT-AE700E only) 11
6.6. Removal of B/Q-Module 12
6.7. Removal of P-Module 12
6.8. Removal of K-P.C.Board 13
6.9. Removal of Lamp Unit 13
6.10. Removal of Analysis Block and Projection Lens 13
6.11. Removal of LCD Block 14
6.12. Removal of Projection Lens 14
6.13. Replacement of LCD Panel 14
6.14. LCD Panel Discrimination 15
6.15. LCD Panel Combination 15
6.16. Replacement of Projection Polarizer 16
6.17. Replacement of Incidence Polarizer (R and B) 16
6.18. Replacement of Incidence Polarizer (G) 17
6.19. Replacement of PBS Array (Analysis Block) 17
6.20. Removal of Iris Unit 18
7 Measurement and Adjustments 19
7.1. Adjustment Procedure Flowchart 19
7.2. Cautions for Adjustment 19
7.3. Setting Before Adjustment 19
7.4. Convergence Adjustment 19
7.5. Lighting Area Adjustment 20
7.6. Software for Adjustment 22
7.7. Flicker Adjustment 24
7.8. Input Level Adjustment (RGB) 24
8 Troubleshooting 26
9 Interconnection Block Diagram 37
9.1. Interconnection Block Diagram (1/2) 37
9.2. Interconnection Block Diagram (2/2) 38
10 Block Diagram 39
10.1. Power Supply 39
10.2. Signal Processing (1/3) 40
10.3. Signal Processing (2/3) 41
10.4. Signal Processing (3/3) 42
11 Schematic Diagram 43
11.1. A-P.C.Board (1/6) 44
11.2. A-P.C.Board (2/6) 45
11.3. A-P.C.Board (3/6) 46
11.4. A-P.C.Board (4/6) 47
11.5. A-P.C.Board (5/6) 48
11.6. A-P.C.Board (6/6) 49
11.7. K-P.C.Board, S-P.C.Board, H-P.C.Board, J-P.C.Board 50
11.8. B-Module (1/2) 51
11.9. B-Module (2/2) 52
12 Circuit Boards 53
12.1. A-P.CBoard 53
12.2. J-P.C.Board/S-P.C.Board 54
13 Terminal guide of ICs and transistors 55
14 Exploded Views 56
15 Replacement Parts List 60
4
PT-AE700U / PT-AE700E

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.
· It is advisable to use an isolation transformer in the AC
power line before the service.
· 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.
· Because the high pressure lamp involves a risk of
explosion, never touch the lamp wire lead during the
service. (See Fig. 3)
Fig. 3
5
PT-AE700U / PT-AE700E

2 Ext Option
This projector has EXT OPTION in addition to standard on-screen menus.
· There are SELF CHECK, SERVICE MODE and FLICKER ADJ for service, etc.
2.1. Procedure to enter EXT OPTION
1.Press "MENU" button on the main unit or remote control unit to display "MENU" screen, then select "OPTION" and press
"ENTER" button.
2.Select "OSD" on "OPTION" menu and press "ENTER" button 3 seconds or longer.
MENU →OPTION →OSD
2.2. EXT OPTION Menu and Functions
· FREEZE MSG
Switching ON/OFF "FREEZE" on-screen display
· PIC.SHIFT
Switching ON/OFF the antipersistence function
− − −
− Shifts the picture slightly (by one dot) when every 60 minutes. (one dot shifting three times, one dot shifting three times in
reverse direction, and repeats them alternately.)
· RUNTIME PRT
Switching ON/OFF the shutdown when the operation time for the lamp unit is 2 000 hours or longer
· FAN CONTROL
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 "FAN CONTROL" in OPTION becomes impossible (setting FAN FULLMODE is given priority
more than FAN CONTROL).
· AUTOSETUP
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
· SERVICE MODE
To enter the service mode
· FLICKER ADJ
To enter the flicker adjustment mode
2.3. Canceling EXT OPTION
Press "MENU" button on the main unit or remote control unit.
6
PT-AE700U / PT-AE700E

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.
3.2. Self Check Display and Contents
7
PT-AE700U / PT-AE700E

3.3. Canceling the self-check mode
Press "MENU" button on the main unit or remote control unit.
8
PT-AE700U / PT-AE700E

4 Service Mode
This mode is used to display 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:
· On the service mode, displays above patterns by each color without test equipment such as PC or SG. Use the service
mode for simplified adjustments by your eyes and so on.
4.1. Procedure to enter the service mode
Select "SERVICE MODE" on "EXT OPTION" menu and press "ENTER" button on the main unit or remote control unit.
Note:
· In the service mode, pressing the up-arrow " " or down-arrow " " button allows the test pattern selection and the
left-arrow " " or right-arrow " " button the color selection (White / Red / Green / Blue).
4.2. Canceling the service mode
Press "MENU" button on the main unit or remote control unit.
5 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.
5.1. Procedure to enter the adjustment mode
Select "FLICKER ADJ" 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 " " 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 (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.
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.
9
PT-AE700U / PT-AE700E

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.
· After repairing this projector, be sure to put back the wires and connectors to the original condition.
6.1. Printed Circuit Board and Main Parts Location
Electrical Parts
Optical Parts
10
PT-AE700U / PT-AE700E