Hisense PDP4220EU Service Manual page 14

1，Adjusting sharpness can improve picture definition
2,Adjusting bright can improve picture administrative levels, it can display black background
something.
3, If VGA or DVI colour isn't natural
You can optimize VGA. VGA can use white window of 800x600/ 60Hz.
4,PDP power is very large system. As you power off power. Power component must discharge
period of time. Power can work steadily. If you power off and power on continuously. Then power
work Unsteadily. Then PDP TV will display deviant picture.
5, TV, AV and S-VIDEO are the same white balance setting. Vga is a set white balance setting.
HDTV is a set white balance setting.
6,picture mode does be divide four mode. Such as normal, bright, soft and user. If you adjust
factory data. They will increase the same data.
7, If IC don't work normally, it will take place follow some phenomena.
①TA8851 don't work normally. TV, AV, S-VIDEO and PIP audio out aren't picture and audio.
Please check its SDA, SCL and power.
② MSP3450 don't work normally. PC, HDTV, DVI, AUDIO OUT aren't audio. Please check its SDA,
SCL, reset and power.
③TA8200 don't work normally. All audio aren't audio except PIP audio. You can check its mute,
power and input signal.
④VPC3230 don't work normally. TV, AV, S-VIDEO aren't picture. Please check its SDA, SCL,
power, crystal wave.
⑤FLI2300 don't work normally. TV, AV, S-VIDEO are problem. Please check its SDA, SCL, power,
crystal wave and HY57V643220DT.
⑥GM1501H don't work normally. All signal and OSD signal are problem. You can press it, and
notice picture change.
⑦LVDS connector is problem. All signal and OSD signal are problem. You can press it, and
notice picture change.
⑧24LC64 is problem. They can't remember, such as Bright data, contrast data, etc
⑨Pi5v330Q u303 is problem. YPbPr and VGA picture are problem.
⑩24LC21 is problem. Some DVI signal couldn't display normally.
⑾FLASH is problem. TV can't turn on power. Colour of indicator light is problem. It is purple.
Please update software.
⑿TDA7053 is problem. Pip audio isn't audio. Please check power and PWM pin.
⒀If you cann't update software. Please check software settings and ST232C.
⒁TELETEXT is problem, Please check SDA5550,39VF040,IS62WV5128BLL.
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