TEST EQUIPMENT
- DMM [Digital Multi Meter]
- Signal Generator: RGB (VGA) - 1024x768, 60Hz, COMPONENT (YPbPr) - 1280x720p, 60Hz
NB:
- Do not attempt an adjustment if proper equipment is not available.
- Because this is not a Hot chassis, no isolation transformer is required. However, the use of an isolation transformer will help protect test instruments.
- Perform only the adjustments required, in the correct order.
- Adjustment conditions… Temperature: 68°-86°F. Humidity: 55%-75%. Line Voltage: 100-240V, 50/60 Hz.
- Prior to adjustment, the PDP must be operated for at least 15 minutes while receiving a 100% white pattern.
CAUTION: If a stationary pattern
(i.e. Cross Hatch or digital generator) is displayed for more than 20 minutes,
an after image (image burn) can occur.
PWB POWER ASSEMBLY ADJUSTMENTS [Va, Vs VOLTAGE ADJUSTMENS]
- These adjustments must be performed after the repair or replacement of the PWB Power Assembly, or after replacing the PDP.
[Va] ADJUSTMENT
- Supply a 100% White pattern.
- Connect a DMM between the Va and GND pins of P805 on the PWB Power. [SEE FIGURE]
- Note the Va voltage listed on the label located on the panel, top right side.
- Adjust RV601 so the voltage is equal to the voltage listed, ± 0.5V.
[Vs] ADJUSTMENT
- Connect the DMM between the Vs and GND pins of P805.
- Note the Vs voltage listed on the label located on the panel, top right side.
- Adjust RV401 so the voltage is equal to the voltage listed, ± 0.5V.
