Sanyo PLC-EF12N Service Manual

Also see for PLC-EF12B: Owner's manual

-33-[R-VIDEO ADJUSTMENT-1]7. Connect an oscilloscope to test point “TP2511” (+)and chassis ground (-).8. Select data no. “014” and set data value to “3FF”.9. Select data no. “013” and change data value to adjust“a” to be 4.0 ±0.05Vp-p.10. Select data no. “014” and change data value toadjust “b” to be 2.1 ±0.05Vp-p.[B-VIDEO ADJUSTMENT-1]11. Connect an oscilloscope to test point “TP2513” (+)and chassis ground (-).12. Select data no. “016” and set data value to “3FF”.13. Select Data no. “015” and change data value toadjust “a” to be 4.0 ±0.05Vp-p.14. Select Data no. “016” and change data value toadjust “b” to be 2.1 ±0.05Vp-p.(a)(b)black levelwhite levelwhite levelElectrical AdjustmentsPresetting1. Receive the 16-step grey scale video signal.2. Set to VIDEO mode.[R-GAIN ADJUSTMENT-2]3. Connect an oscilloscope to test point “TP501” (+) andchassis ground (-).4. Enter to the service mode, select data no. “00C” andchange data value to adjust “a” to be minimum ampli-tude.[G-GAIN ADJUSTMENT-2]5. Connect an oscilloscope to test point “TP531” (+) andchassis ground (-).6. Select data no. “00E” and change data value to adjust“a” to be minimum amplitude.[B-GAIN ADJUSTMENT-2]7. Connect an oscilloscope to test point “TP561” (+) andchassis ground (-).8. Select data no. “010” and change data value to adjust“a” to be minimum amplitude.Pedestal level = Black level(a)GAIN ADJUSTMENT-[AV]Presetting1. Receive the 16-step gray scale computer signal.2. Set to COMPUTER mode.[G-VIDEO ADJUSTMENT-1]3. Connect an oscilloscope to test point “TP2512” (+)and chassis ground (-).4. Enter to the service mode, select data no. “012” andset data value to “3FF”.5. Select data no. “011” and change data value to adjust“a” to be 4.0 ±0.05Vp-p.6. Select data no. “012” and change data value to adjust“b” to be 2.1 ±0.05Vp-p.VIDEO ADJUSTMENT-[CG]Presetting1. Receive the 16-step gray scale video signal.2. Set to VIDEO mode.[G-VIDEO ADJUSTMENT-2]3. Connect an oscilloscope to test point “TP2512” (+)and chassis ground (-).4. Enter to the service mode, select data no. “018” andset data value to “3FF”.5. Select data no. “017” and change data value to adjust“a” to be 4.0 ±0.05Vp-p.6. Select data no. “018” and change data value to adjust“b” to be 2.1 ±0.05Vp-p.[R-VIDEO ADJUSTMENT-2]7. Connect an oscilloscope to test point “TP2511” (+)and chassis ground (-).8. Select data no. “01A” and set data value to “3FF”.9. Select data no. “019” and change data value to adjust“a” to be 4.0 ±0.05Vp-p.10. Select data no. “01A” and change data value toadjust “b” to be 2.1 ±0.05Vp-p.VIDEO ADJUSTMENT-[AV]