Sony XBR-55X900H Service Manual page 6

2020/06/27 06:31:32 (GMT+09:00)
10) During the repair, DO NOT leave the Power On or Burn-in period for
more than 1 hour while the TV is face down on a cloth. Refer Figure 1
Figure 1.
1-2-2. Caution for OLED Panel
1) Handling
When repairing the TV set, be sure you are grounded by using a wrist band.
*Do not press on the panel or frame edge to avoid the risk of electric shock.
*Do not scratch or press on the panel with any sharp objects.
*Do not leave the module in high temperatures or in areas of high humidity
for an extended period of time.
*Do not expose the panel to direct sunlight.
*Avoid contact with water. It may cause a short circuit within the module.
*Disconnect the AC power when replacing.
*Always clean the panel with a soft cloth material.
*Use care when handling the wires or connectors. Damaging the wires may
cause a short.
*Protect the panel from ESD to avoid damaging the electronic circuit.
*Do not recommend power-on in the conditions which laid face down the
panel, in repair activity. Refer Figure 1.
*When transporting by hand, do not put stress on the panel and the frame
around the screen.
SECTION 1
S E C T I O N 1
S A F E T Y N O T E S
SECTION 2 SECTION 3
Refer to the panel handling chapter of each Service manual,
or the "Transporting" information of the Reference Guide of each model for how
to hold it.
2) OLED Screen
•Although the OLED screen is made with high-precision technology and
99.99% or more of the pixels are effective, black dots may appear or bright
points of light (white, red, blue, or green) may appear constantly on the OLED
screen. This is a structural property of the OLED screen and is not a
malfunction.
•Do not push or scratch the front filter, or place objects on top of this TV set.
The image may be uneven or the OLED screen may be damaged.
•The screen and cabinet get warm when this TV set is in use. This is not a
malfunction.
3) Precautions to Protect the Screen from Damage
Image retention
OLED TV's are susceptible to image retention (burn-in) due to the
characteristics of the materials used. Image retention may occur if images are
displayed in the same location on the screen repeatedly or over extended
periods of time. This is not a malfunction of the TV. Avoid displaying images
that may cause image retention.
The following are examples of images that may cause image
retention:
•Content with black bars either on the top and bottom and/or the left and right
sides of the screen. (for example, Letterboxed, 4:3 screen, Standard definition)
•Static images such as photos.
•Video games that might have static content in some part of the screen.
•On-screen menus, program guides, channel logos etc.
•Static content from applications.
•On-screen tickers, such as those used for news and headlines.
SECTION 4 SECTION 5
6
SECTION 6
SYS SET