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This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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2-2-6. Adjustment for the Power Board When the Panel is Replaced
2-3-2. Notes
(1) Without any special specification, the Module should be at the condition of preliminaries more than 10 minutes before adjusting. . Service signal : 100% Full White signal . Service DC voltage : Vcc : 5 V, Va : 65 V, Vs : 190 V . DC/DC Pack voltage : Vsetup : 220 V, Vscw : 115 V, _Ve : _35 V, _Vy : _75 V . Preliminaries environment : Temp (25 ± 5°C), Relative humidity (65 ± 10%) (2) Module should get the Aging for the equilibrium after finish the assembling. Aging condition is shown below. . Service signal : 100% Full White, Red, Green, Blue pattern signal (Service time of each pattern : within 5 minutes/cycle) . Service DC voltage : Match the voltage with the set up voltage in the first adjustment. . Aging time : More than 4 Hrs . Aging environment : Temp (60 ± 2°C), relative humidity-Less than 75% (3) Module adjustment should be followed by below sequence. . Setting up the initial voltage and adjusting the voltage wave form of Vsetup . Measuring the Margin of Vs voltage and deciding the voltage . Adjusting and checking the voltage of DC/DC pack (Vsetup, Vscw, _Ve, _Vy) . Adjusting the voltage wave form of Vset-down . Measuring the voltage margin of Vset-up and deciding the voltage . Adjusting the wave form of final voltage But, these items above can be changed by the consideration of mass production. (4) Without any special specification, you should adjust the Module in the environment of Temp (25 ± 5°C) and Relative humidity (65 ± 10%) c If you let the still image more than 10 minutes (especially The Digital pattern or Cross Hatch Pattern which has clear gradation), after image can be presented in the black level part of screen.
The label shown in the picture above is stuck on the upper right position at the back side of the panel, on which the Va and Vs voltages for each panel are described.
Vs adjusting VR Va adjusting VR
The Vs and Va adjusting VRs are located at around the center part of the power board as shown in the picture. After replacing the panel, adjust each VR so that it becomes the voltage described in the above label (± 0.5 V). Voltage measurement is performed between pin 1 of CN807 and chassis GND for Vs, and between pin 6 of CN807 and pin 10 of CN806 for Va.
2-3. Adjustment for Panel
2-3-1. Application Object
This standard is applied to the PDP42V5#### PDP Module which is manufactured by the manufacturing team of PDP promotion department or elsewhere.
PFM-42V1/42V1A/42V1E/42V1P
2-3
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