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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1. Remove 2 screws-A (M2.5x6) and pull the mirror(B) assy upward off.
2.  Remove 2 screws-B (M2.5x6) and pull the relay lens(In) assy upward off.

Relay lens(In) 
assy

Mirror(B)

Relay lens(In)

Marking behind 
the mirror

Mirror(B) assy

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Condenser lens(R)

Dichroic mirror(B)

Mirror(R)

Condenser lens(B)

Mirror(R)

Relay lens(In)

Condenser lens(G)

Dichroic mirror(G)

When mounting or assembling the optical parts in the optical unit, the parts must be mounted in the specified location 
and direction as shown in the figure below.

Point marker 
comes this side up

Point marker 
comes this side up

Marking behind 
the mirror

Marking behind 
the mirror

Marker

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Take the following steps when the main board is replaced.

Each of the adjustment data (electrical adjustment data, serial number, projector's, filter usage time, user control set-
ting value, etc.) is stored in memory ICs(IC1387) on the main board. After replacing the main board, perform the data 
transferring by using the software [NVReadWrite v1.0.0.0]. For further details, refer to the operation manual of the 
software.
The data which can be set by this software includes "Serial number" and "Model no." setting below. Follow each set-
ting procedure if the indivsual setting is needed.

The data of serial number is stored in memory IC (IC1387) on the main board.
After replacing the main board, perform the work below to restore the serial number.

• Use the serial no. setting tool to write the correct serial no. referring to the serial no. (S/N) printed on the
  rating label. For further details, refer to the operation manual of the software [SERIAL NO. SETTING  
  TOOL V1.00].

The data of  projector's model no. is stored in both memory IC (IC1387) on the main board.  
After replacing the main board, perform the work below to restore the model number.

  1. Enter the service mode.

 2. Select the group "430 ~ 437" and No. "1", change the data value from "0" to "10". Refer to table below.

The data value will return to "0" after setting.

  3.  To check the setting, select each group and No. "0" and check its value with table below.
   How to enter the service mode, or set the group. No. and data, refer to the item "Service adjustment menu 

operation".

Model no. setting

Group 

No.

Data

Not defined

430

0

* (refer t table right)

1

0 -> 10

PT-EZ570

431

0

* (refer t table right)

1

0 -> 10

PT-EZ570U

432

0

* (refer t table right)

1

0 -> 10

PT-EZ570E

433

0

* (refer t table right)

1

0 -> 10

PT-EZ570EJ

434

0

* (refer t table right)

1

0 -> 10

PT-SLZ67C

437

0

* (refer t table right)

1

0 -> 10

Model no. setting

Data

Model no.

0

Not defined

1

PT-EZ570

2

PT-EZ570U

3

PT-EZ570E

4

PT-EZ570EJ

7

PT-SLZ67C

Model no. checking

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This projector stores " Color shading correction data" and "Gamma correction data" in the memory IC (IC801) on the 
main board. Those adjustment data have been setup according to the optical characteristics of the mounted LCD pan-
els preciously in the factory. When replacing the main board, you need to read out the those setting data stored in the 
memory IC on the previous main board and write down them into the memory IC on the new main board by using the 
software [PROJECTOR SERVICE TOOL v4.20]. By the way, it enables the projector to reproduce the picture which 
has properly adjusted color shading correction, gamma correction. For further details, refer to the operation manual 
of the software [PROJECTOR SERVICE TOOL v4.20].
Note:
"Color shading correction data" and "Gamma correction data"  cannot be read out or wrote in by the software [NVRead-
Write]

The NVRedWrite v1.0.0.0, projector service tool v4.20 and serial no. setting tool v1.00 can be 
downloaded from the projector service web site.