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Pioneer PDP-507XD Service Manual

Pioneer PDP-507XD
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PDP-507XD
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C
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10.3 POWER ON/OFF FUNCTION FOR THE LARGE-SIGNAL SYSTEM
Function: It is an operational mode where the digital signal processing performs circuit operation but the power
is not supplied to the panel driving system (large signal system) in order to avoid a power down.
Application:
1. When it is necessary to check whether the signal output is correctly reaching the drive system in a repairing activity etc.
2. In the case of a PD, to determine whether the problem is with the large signal system power supply or with the small signal
system power supply.
Method:
1. Make shorting between the specified location (refer to the illustration below) of the PCB surface of the 50 DIGITAL ASSY
and the nearby pattern.
2. Execute [DRV S00] by RS232C command. ([DRV S01] for release)
Supplemental explanation:
When the large signal system power supply is in OFF state, there will be no PD, except PS_PD, as the PD signal has been muted.
• If the clip is removed in the OFF state of the large signal system power supply, PD will take place at the instance of clip
removal. Therefore, be sure to remove the clip after turning the power OFF.
• Under RS232C command control, [DRVS01] (release) is possible during power ON. However, there is a possibility of
damaging the set. Therefore, make this operation only after turning the power OFF.
Command [DRVS00/S01] is effective even during standby. When the main power is turned OFF, however,
[DRVS01] (release) will be effective.
Short the two adjacent electrodes on the surface by a method
which assures continuity, such as using a crocodile clip.
50 DIGITAL ASSY

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Pioneer PDP-507XD Specifications

General IconGeneral
Comb filter3D
Aspect ratio16:9
Product colorBlack
Noise reductionYes
Display diagonal50 \
Display brightness1100 cd/m²
Display resolution1365 x 768 pixels
Display technologyPlasma
Viewable size diagonal1270 mm
Contrast ratio (typical)4000:1

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