DOWNLOAD Panasonic PT-EZ570U / PT-EZ570E / PT-EZ570UL / PT-EZ570EL (serv.man2) Service Manual ↓ Size: 26.3 MB | Pages: 127 in PDF or view online for FREE

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CAUTION:  The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following 

adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance 
and product safety. Before adjustment, please turn on the projector for more than 10 minutes to stabilize 
the operation.

[Adjustment Condition]
 

● Input signal

 

Computer signal .........................  0.7Vp-p/75

Ω terminated (XGA)

 

Video signal  .............................. 1.0Vp-p/75

Ω terminated (Composite video signal)

 

Component video signal ............  1.0Vp-p/75

Ω terminated (Component video signal (480i)

 

 

● Input signal pattern

 

 

● Image mode ..................... Standard

  

● Lamp power ..................... Normal

Note:
*  Please refer to "Service adjustment menu operation" for entering the service mode and adjusting the service data.

White 100%

White 0%

White 100%

White 0%

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  Equipment 

Digital voltmeter

1. Enter the service mode.
2.  Adjust the voltage on each test point by changing the   

data values of Group-No.

  Group - No.  Fan 

Test Points   Adjustment value

250  -   0      FAN 1      TPFN11        4.5 +0.1 -0Vdc

  250  -   1 

FAN 1 

TPFN11 

  250  -   2 

FAN 2 

TPFN6 

  250  -   3 

FAN 2 

TPFN6 

  250  -   4 

FAN 3 

TPFN4 

  250  -   5 

FAN 3 

TPFN4 

  250  -   6 

FAN 4 

TPFN2 

  250  -   7 

FAN 4 

TPFN2 

  250  -   8 

FAN 5 

TPFN1 

  250  -   9 

FAN 5 

TPFN1 

  250  -   10  FAN 6 

TPFN3 

  250  -   11  FAN 6 

TPFN3 

  250  -   12  FAN 7 

TPFN5 

   250  -   13   FAN 7      TPFN5         13.8 -0.1Vdc

  Input mode 

Input 1 (RGB)

  Input signal 

XGA computer signal

  Signal pattern 

16-step gray scale     

1. Enter the service mode.
2. Select Group "200",  No. "70" and  set data value to  
   "0". Select Group "200",  No. "72" and  set data value   
    to  "0". 
3.   Select Group "260",  No. "0" and  set data value "0" 

to "1".

     The projector begins auto-calibration for MAIN and    
    then "OK" will appear on the screen.
4. Select Group "200",  No. "70" and  set data value   
    to  "1". 
5.   Select Group "260",  No. "0" and  set data value "0" 

to "1".

    The projector begins auto-calibration for SUB and    
     then  "OK" will appear on the screen.
6. Select Group "200",  No. "70" and  set data value   
    to  "0".  Select Group "200",  No. "72" and  set data   
    value  to  "1".  

  Adjustments item no. [3] and [5] are carried out 

at the spare parts shipment in the factory, there-
fore they are not required when the main board is 
replaced with new one.

*  Before  setting,  you  need  to  check  which  type  of  LCD 

panel  is  placed  on  the  projector  according  to  the  item  
"LCD panel/prism assy removal" in the chapter "Optical 
Parts Disassembly".

1. Enter the service mode.
2. Panel Type Check
   Select Group “290”, No. “0”. Check the data value as 

follows;

  Data value “0”  : For L-Type of LCD Panel
  Data value “20”  : For R-Type of LCD panel
   If  the  mounted  LCD  panel  type  and  set  Panel  mode 

are differ, take the step below.

3. Panel Type Mode Setting
   Select Group “290”, No. “1” and change the data value 

from 10 to 0 or 20 depending on your LCD panel type. 
When the data value reaches 0 or 20, it returns to 10 
quickly.  The  gamma-characteristics  changes  accord-
ing to your selection.

  Input mode 

Input 2 (Component)

  Input signal 

100% color bar signal (480i)

   

100% color bar signal (480p)

   

100% color bar signal (720p)

   

100% color bar signal (1080i)

1. Enter the service mode.
2.  At first, input the 100% color bar signal (480i).
3. Select Group "200",  No. "72" and  set data value   
    to  "0". Select Group "200",  No. "71" and  set data    
   value  to  "1". 
4.   Select Group "260",  No. "0" and  set data value "0" to 

"1". 

   The  projector  begins  auto-calibration  and  then  "OK" 

will appear on the screen.

5. Select Group "200",  No. "71" and  set data value   
    to  "0". 
6. Select Group "260",  No. "0" and  set data value "0"  
    to "1". 
    The projector begins auto-calibration and then "OK"  
    will appear on the screen.
7.   Change another input signal and take steps 3 - 6 again.
8. Select Group "200",  No. "71" and  set data value to  
    "1". Select Group "200",  No. "72" and  set data value   
    to  "1". 

  Input mode 

Input 3 (Video)

  Input signal 

 100% color bar composite video signal

1. Enter the service mode. 
2. To start the auto-calibration for composite-video 
    adjustment, select Group "260", No. "0", and then  
    change data value "0" to "1".

   After the auto-calibration completed, "OK" will appear 

on the screen.

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  Software  PROJECTOR SERVICE TOOL v4.20
  Signal pattern 

5%, 10%, 15%, 20%, 30%, 50%,  

   

 

75%, 95% whole gray

Use  the  software  to  correct  the  color  shading  of  the 
screen.  See  the  further  information  of  the  software  in-
struction manual.
The color shading correction adjustment for this model 
should be performed with the whole-gray patterns speci-
fied as above.

Corresponding  to  the  pull-down  menu  of  the  gray  level 
selector on the software.
 

Level L1 

:5%

 

Level L2 

:10%

 

Level L3 

:15%

 

Level L4 

:20% 

 

Level L5 

:30%

 

Level L6 

:50% 

 

Level L7 

:75%

 

Level L8 

:95% 

 

Relation of level (%) indication and signal pattern

 

 

0% 

:Black

 

 

100% 

:White

     Input mode   

Input 1 (RGB)

     Input signal   

XGA computer signal

     Signal patterns 

16-step gray signals

1.  Enter the service mode.
2.  Select Group "

", No. "

" (Red) or

"

"

(Blue), and 

change  Data  values  respectively  to  make  a  proper 
white balance.

 
 

Group - No.  Adjustment

  

Input mode 

Input 1 (RGB)

 

Input signal 

XGA computer signal

 

Signal patterns  

50% R, G, B whole signals

1. Enter the service mode. 
2.   Select  Group  "101",  No.  "4"  and  then  change  data 

value from "2" to "0" to reduce the panel frequency.

3.  Change data value to obtain the minimum flicker for 

each color on screen. 

  Group - No. 

Adjustment 

for blue flicker  

4.  Select  Group  "101",  No.  "4"  and  then  change  data 

value from "0" to "2".

1. Enter the service mode.
2.  Select  group  no.  “240”  and  item  no.  “2”.  Confirm  the 

Data value is   “1”.

  0: Wind sensor function Disable
  1: Wind sensor function Enable
3.  Select group no. “240” and item no. “0”.
4.  To start the adjustment, change data value from “0” to 

“1”. After the auto-calibration completed, "OK" will ap-
pear on the screen.

IMPORTANT
 Before taking this adjustment, you need to replace the air 
filter with new one and make sure the cabinet top, filter 
cover and filter cartridge are securely installed.

1. Set the lens to the center position (horizontal and 
  vertical) by using the LENS SHIFT Up / Down. 
  Left / Right buttons.
2. Enter the service mode, select Group No. “200” and
  Item No. “15” .
3. Change Data value from “0” to “10”. The centering 
  position of the lens shift is memorized.
4. To check the lens shift operation correctly, move the
  lens to your desired position with LENS buttons.
  Then press the LENS button for more than 5 
  seconds. The lens moves to the memorized center 
  position automatically.

  Software 

PROJECTOR SERVICE TOOL v4.20

Use the software to obtain the proper gray scale. See the 
further information of the software instruction manual.

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