Toshiba 34AX9UH Service Manual page 16

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THE PIP SCREEN SUB-BRIGHT ADJUSTMENTS
[DATA ADJUSTMENTS]
1 Adjustment of minor screen sub-bright
Condition)
After the completion of main screen adjustments
(1) Let both the main and PIP screens receive signal, Domestic 2ch.
(2) Select the adjustment item [MWBRC] and adjust the number of collapsed black lines.
± 1.5 lines
Standard)
<Reference data>
2 PIP screen color difference DC offset adjustments (White balance adjustment)
Condition)
After adjusting PIP screen sub-bright
Adjustments) (1) Let both the main and PIP screens receive all black signals.
(2) Observe UM01#31 (R-Y out).
(3) Select the adjustment item [MWBR] and adjust the amount of DC offset.
(4) Observe UM01#30 (R-Y out).
(5) Select the adjustment item [MWBB] and adjust the amount of DC offset.
Standard)
0±10mV
– 16 –

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