Daewoo DTD-29U9, Service Manual

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1-2. MAIN VIDEO OUTPUT ADJUSTMENT
At first, put on Main Power Cord
1) Pattern : PAL B/G Color Bar(RF level = above 60dB)
2) Adjust the R569 to make the Video signal of JA12(AV PCB RA16
Voltage) to be 1Vp-p.
3) Adjust the R579 to make the Video signal of TP5(Main PCB C508
Voltage) to be 1Vp-p.
1-3. COMB FILTER OUTPUT ADJUSTMENT
1) Pattern : PAL B/G Color Bar(RF level = above 60dB)
2) Adjust the R259 to make the Y(Luminance) signal of TP "Y"(AV PCB JA47 Voltage) to be 1Vp-p.
1-4. RF AGC ADJUSTMENT
1) Pattern : PAL B/G 10CH Color BAR(RF Level = 60dB)
2) Connect the probe of Oscillocope to P101(Left & Right) of Main PCB.
3) Set the switch of antenna splitter to be down.
4) Main RF AGC ADJUSTMENT
After press the ’S9’ key of Service Remocon to enter the "AGC" mode.
and adjust "AGC bar " to be MAX-8step.
5) Press the ’S11’ key of Service Remocon to set the "2-Picture" mode.
6) Connect the probe of Oscillocope to P102(Left & Right) of main PCB.
7) Sub RF AGC ADJUSTMENT
(1) Turn the RP01 of PIP PCB to be the maximum voltage.
(2) Turn the RP01 of PIP PCB the voltage to be dropt 1V~1.2Vdc blow its maximum voltage.
8) Press the ’S11’ key of Service Remocon to cancel the "2-Picture" mode.