PT-MZ16K, PT-MZ13K, PT-MZ10K (serv.man2) — Panasonic Projector Service Manual (repair manual). Page 108

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ADJ-10
SECTION 3 ADJUSTMENTS
<MZ16K/MZ13K/MZ10K>
1.8.  Ghost feedback calibration 
This ghost feedback (GCFB) function operates to control the ghost 
to be the best position constantly by detecting the aging fluctuation 
of GCFB pulse generated from LCD panels. Projector reads out the 
pulse status at the production and memorizes it as initial value.
*  This calibration should be done when the optical block is replaced. 
When the A-PCB is replaced, the item "1.4. Adjusted data transfer"  
should be done to get its initial value.
1.  Enter the service mode (EXTRA OPTION) and select [GHOST FB 
CALIBRATION].
2. Press [ENTER] button to start the calibration.
3.  When calibration is complete, the message will appear on the 
screen.
4.  Press [MENU] button to exit the adjustment mode.
EXTRA OPTION
1/2
DYNAMIC GAMMA MODE
3DCMS
SHUTTER KEEP
ON
ON
OFF
L
PT-MZ16K
SELF CHECK
FLICKER ADJUST
POWER OFF MESSAGE
ERROR OSD
MODEL
LIGHT RUNTIME RESET
PANEL TYPE SETTING
RGB PIXEL ADJUST
GHOST FB CALIBRATION
CLOG SENSOR CALIBRATION
MENU SELECT
CHANGE
EXTRA OPTION
1/2
DYNAMIC GAMMA MODE
3DCMS
SHUTTER KEEP
ON
ON
OFF
L
PT-MZ16K
SELF CHECK
FLICKER ADJUST
POWER OFF MESSAGE
ERROR OSD
MODEL
LIGHT RUNTIME RESET
PANEL TYPE SETTING
RGB PIXEL ADJUST
GHOST FB CALIBRATION
CLOG SENSOR CALIBRATION
MENU SELECT
CHANGE
GHOST FB CALIBRATION
OK
CLOG SENSOR CALIBRATION
OK
CANCEL
1.9. Clog sensor calibration
1.9.1. Preparation
This is to calibrate the clog sensor circuit.
•  This calibration should be done in the condition that the projector is 
completely assembled and place on the floor and the adjuster legs 
are set in the cabinet bottom.
• Replace the air filter with new one before starting calibration.
•  The work should be done at the location where there are no heat 
apparatus and the ventilation opening of the air-conditioner and the 
object to block the exhaust air.
•  This calibration can be done under the intake temperature between 
15℃ to 35℃.
1.9.2. Adjustment procedure
1.  Enter the service mode (EXTRA OPTION) and select [CLOG 
SENSOR CALIBRATION], and press [ENTER] button to enter the 
adjustment mode.
2. Select [OK] and press [ENTER] button to start the calibration.
   During the calibration, the projector displays white raster and the 
progression will be displayed with [0%- 100%].
3.  After apporox. 15 minutes, [CLOG CLIB OK] will display to show 
the calibration completed.
• Do not turn off the projector during the calibration.
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