Wednesday, May 18, 2016

Panasonic projector - Panasonic PT-AE900U - PT-AE900E – How to access Exit option menu – Self check mode – Flicker adjustment - Power supply schematic diagram – MIP2F20MSSCF - Ballast board schematic diagram – Projector repair and service

This projector has EXT OPTION in addition to standard on-screen menus.

There are SELF CHECK and FLICKER ADJ for service, etc.
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.)
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 "FAN CONTROL" in OPTION becomes impossible (setting FAN FULLMODE is given priority more than FAN CONTROL)
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 ADJ
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 (VCR, VHD, etc.), horizontal synchronization might be disordered according to connected equipment. In this case, set HPLL to OFF.
Canceling EXT OPTION
Press "MENU" button on the main unit or remote control unit.
Self-Check Mode
This mode is used to narrow down the location of the failure.
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.
Canceling the self-check mode
Press "MENU" button on the main unit or remote control unit.
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.
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 (red)" is displayed when entering the adjustment mode.
Adjustment Display and Contents
Setting value is increased and decreased with the right-arrow and left-arrow buttons. Left  arrow : Decrease, right : 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.UP arrow : Forward direction, Down arrow: 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.
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.
Pin Layout and Signal Names for SERIAL Connector
Pin No
Signal Name
Contents
3
RXD
Receive data
4
GND
Ground
5
TXD
Transmit data
1
---
Connected internally


2
---
6
---
7
---
NC
8
---
NC
Flicker Adjustment
B Signal Adj:
Sets the test signal mode to the B-signal and allows the " UP", " DOWN " and "OK" buttons of the B-signal to becomes active.
R Signal Adj:
Sets the test signal mode to the R-signal and allows the " UP", " DOWN " and "OK" buttons of the R-signal to becomes active.
G Signal Adj:
Sets the test signal mode to the G-signal and allows the " UP", " DOWN " and "OK" buttons of the G-signal to becomes active.
or
Changes the setting value and transmits its data. (The 8 and 2 keys on the keyboard have the same functions.) I releasing the mouse or key after pressing it continuously, the data is transmitted once. The variable setting value is enclosed in a box and using the TAB or SPACE key allows the move of the box.
OK:
Determines the setting value and stores its data in the EEPROM. (The ENTER key on the keyboard has the same function.) The item having two or more kinds of setting values is processed two or more items. Clicking this button or pressing ENTER key changes the color of the text "OK" to cyan (light blue). If changing the setting value using the "UP", " DOWN " button or the 8 or 2 key, its color returns to black.
Stop:
Discontinues the communication. (This button is usually set for its inactive mode.)
Undo:
Returns the setting value to its original state and transmits its data. The color of the text "OK" returns to black.
Close:
Closes this menu.
Equipment to be used
PC, Software for Adjustment
Adjustment Procedure
1. Display Flicker Adjustment menu.
2. Click "B Signal Adj," and the blue flicker adjustment pattern will be displayed.
3. Minimize the flicker while observing the projected pattern.
4. Click "R Signal Adj," and the red flicker adjustment pattern will be displayed.
5. Minimize the flicker while observing the projected pattern.
6. Click "G Signal Adj," and the green flicker adjustment pattern will be displayed.
7. Minimize the flicker while observing the projected pattern.