-24-1. Receive the 16-step gray scale component signal(480i format) with COMPUTER IN [COMPONENT]mode.2. Enter the service mode.3. Connect an oscilloscope to test point “TPR1” (+) andchassis ground (-).4. Select item no. “7” and change data value to adjustwaveform “a” to be minimum amplitude.5. Connect an oscilloscope to test point “TPG1” (+) andchassis ground (-).6. Select item no. “8” and change data value to adjustwaveform “a” to be minimum amplitude.7. Connect an oscilloscope to test point “TPB1” (+) andchassis ground (-).8. Select item no. “9” and change data value to adjustwaveform “a” to be minimum amplitude.(a)White Level1. Receive the 16-step gray scale component signal(480p format) with COMPUTER IN [COMPONENT]mode.2. Enter the service mode.3. Connect an oscilloscope to test point “TPR1” (+) andchassis ground (-).4. Select item no. “7” and change data value to adjustwaveform “a” to be minimum amplitude.5. Connect an oscilloscope to test point “TPG1” (+) andchassis ground (-).6. Select item no. “8” and change data value to adjustwaveform “a” to be minimum amplitude.7. Connect an oscilloscope to test point “TPB1” (+) andchassis ground (-).8. Select item no. “9” and change data value to adjustwaveform “a” to be minimum amplitude.(a)White Level1. Receive the 16-step gray scale composite video sig-nal with Video [Video] mode.2. Enter the service mode.3. Connect an oscilloscope to test point “TPR1” (+) andchassis ground (-).4. Select item no. “7” and change data value to adjustwaveform “a” to be minimum amplitude.5. Connect an oscilloscope to test point “TPG1” (+) andchassis ground (-).6. Select item no. “8” and change data value to adjustwaveform “a” to be minimum amplitude.7. Connect an oscilloscope to test point “TPB1” (+) andchassis ground (-).8. Select item no. “9” and change data value to adjustwaveform “a” to be minimum amplitude.(a)White Levelc Video Gain adjustmentElectrical Adjustmentsb 480p Gain adjustmentn 480i Gain adjustment1. Receive the 16-step gray scale component signal(480p format) with COMPUTER IN [COMPONENT]mode.2. Enter the service mode.3. Connect an oscilloscope to test point “TPR1” (+) andchassis ground (-).4. Select item no. “275” and change data value to adjustthe pedestal level and black level to be the samelevel.5. Connect an oscilloscope to test point “TPG1” (+) andchassis ground (-).6. Select item no. “276” and change data value to adjustthe pedestal level and black level to be the samelevel.7. Connect an oscilloscope to test point “TPB1” (+) andchassis ground (-).8. Select item no. “277” and change data value to adjustthe pedestal level and black level to be the samelevel.Black LebelPedestal Lebelv 480p Pedestal adjustment