DOWNLOAD Sony VPL-HW20 / VPL-HW20A Service Manual ↓ Size: 11.94 MB | Pages: 127 in PDF or view online for FREE

1-21 (E)

VPL-HW20

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The fl at cables, fl exible card wires and boards are used to connect between the following boards. Life of 
fl exible card wire will be signifi cantly shortened if it is folded. Be very careful not to fold the fl at cables, 
fl exible card wires and boards.
Because the direction of the fl at cables, fl exible card wires and boards are different depending on the 
shape of the connector, be careful when connecting the fl at cables, fl exible card wires and boards.

1.  Turn off the power.
2.  Lift up the portion A in the direction of the arrow to unlock and pull out the fl exible card wire.

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.  Do not insert the coaxial cable with connector sideways.
.  Check that there is no stain or dust on the contact surface of the coaxial cable with connector.

1.  Lift up the portion A in the direction of the arrow and securely insert the fl exible card wire into the 

deep end of the connector.

2.  Return the portion A to its original position and lock the connector.

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When connecting the fl exible card wire, check the connector shape, and great care should be taken for the 
direction of the contact surface or isolation surface.

Isolation surface

Connector: 1

Connector:

2

A

Contact surface

A

A

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VPL-HW20

Boards requiring use of lead-free solder are printed with a lead free mark (LF) indicating the solder 
contains no lead.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular 
size.)

 : LEAD FREE MARK

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.  Be sure to use the lead-free solder for the printed circuit board printed with the lead free mark.
.  The lead-free solder melts at a temperature about 40 dC higher than the ordinary solder, therefore, it is 

recommended to use the soldering iron having a temperature regulator.

.  The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly 

longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so 
be careful.

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VPL-HW20

. Oscilloscope
  Tektronix 2465 or equivalent
  (bandwidth: 350 MHz or more)
.  NTSC, PAL, SECAM component signal generator
  Tektronix TG2000 + AVG1 (optional module) + AWVG1
  (optional module) or equivalent
.  VG (Programmable video signal generator)
  VG849C or equivalent
. Digital voltmeter
  Advantest TR6845 or equivalent
. Luminance meter
.  Chrominance difference gauge

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Perform the following adjustments at least 15 minutes after turning on the power.

1.  Set the “Status” to “On” in the “Setup” MENU.
2.  Close the menu by pressing [MENU] button if its displayed.
3.  Press the buttons in the following order in 5 seconds:
 

“ ” → “ ” → “ ” → “ ”

4.  The message “Do you wish to enter into the SERVICE MODE?  Yes  No” will be displayed.
5. Select 

“Yes”.

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When leaving the SERVICE MODE, perform step 3.
“Do you wish to return to the USER MODE?  Yes  No” will be displayed. Select “Yes”.

.  Note that when the items (W/B, Device Adjust) that can be adjusted in the Service mode are adjusted 

and stored in memory, they are saved in NVM and the factory default data will be lost.

.  Be sure to perform “Save to memory” after entering and exiting the Gamma adjustment mode. If the 

values are changed in the Gamma adjustment mode and you want to reset to the original value, turn off 
the power of the unit and turn it on again. The UF data does not change even if the mode for Advanced 
Iris in Cinema Black Pro in Picture Adjust is changed without performing “Save to memory”. When 
“Save to memory” is performed at that time, the UF data of each Iris mode will be overwritten and lost.

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VPL-HW20

1.  Set the “Status” to “On” in the “Setup” MENU.
2.  Close the menu by pressing [MENU] button if its displayed.
3.  Press the buttons in the following order in 5 seconds:
 

“ ” → “ ” → “ ” → “ ”

 

Demonstration mode screen is displayed.

 

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Even if the message “Not applicable!” is displayed, ignore it. If the key operations failed, wait for at 
least 6 seconds since the last key is pressed, and perform the key operations again.

4.  Select “Model Name Display”.

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To exit the Model Name Display mode, perform step 3.
“Demonstration mode screen” is displayed. Select “Off”.

1.  Write the LookUpTable/3DGamma/ABGamma/OGMTable/CSMatrixTable data contained in the 

attached CD-R.

 

For how to write data, refer to “2-7-4. Data Write Method of LookUpTable/3DGamma/ABGamma/
DDC/OGMTable/CSMatrixTable”.

2.  Change the IRIS data to the values of the IRIS adjustment data stored in the supplied CD-R. For how 

to change the data, refer to “2-4-1. IRIS”.

3.  Change the Panel Driver Gain B data to the values of the adjustment data stored in the supplied 

CD-R. For how to change the data, refer to “2-4-2. Panel Driver Gain B”.