Sunday, January 24, 2016

PANASONIC PT-AX100 Ext option - Self check mode - How to disassemble the cover - Ballast Circuit diagram - Multimedia Projector Repair and service - Tips manual

Category: Projector Repair and Service 

Contents of this article 

  • Ext Option Menu
  • Self check mode
  • Ballast circuit 

PANASONIC PT-AX100 

Ext Option
This projector has EXT OPTION in addition to standard on-screen menus.
There are SELF CHECK and FLICKER ADJUST 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 "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.
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 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.
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.
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.
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.
BALLAST CIRCUIT DIGRAM 
CLICK ON THE IMAGE TO ZOOM IN