Yamaha PDM-4220 User Manual

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45ENGLISHTROUBLESHOOTING (continued)Actions to Correct Abnormal DisplaysDepending on the kind of system equipment used, images may not be displayed normally. In this case, make theadjustments suggested below. (only for RGB2)Symptom 1ExampleAdjustmentprocedureText displayed across the screen appears vertically streaked, with some characters blurred (Figure 1).(RGB input).Figure 11) Press the MENU button. The Main Menu will be displayed.2) Press the SELECT button and select Setup.3) Press the OK button. The Setup Menu will be displayed.4) Press the SELECT button and select Auto Adjust.When adjustment is not possible with Auto Adjust5) Press the MENU button. The Main Menu will be displayed.6) Press the SELECT button and select Setup.7) Press the OK button. The Setup Menu will be displayed.8) Press the SELECT button and select Horizontal Clock.(Display fine patterns as characters or a vertical striped pattern over the entire screen during Horizontal Clock adjustment.)9) Press the or ADJUST buttons and search for clear characters over the entire screen.10) Perform adjustment for symptom 2 below, when the characters are blurred on the entire screen.Symptom 2ExampleAdjustmentprocedureText displayed across the screen appears blurred in its entirety (Figure 2).A fine pattern flickers when displayed on the screen (Figure 3).Figure 2 Figure 31) Press the MENU button. The Main Menu will be displayed.2) Press the SELECT button and select Setup.3) Press the OK button. The Setup Menu will be displayed.4) Press the SELECT button and select Auto Adjust.When adjustment is not possible with Auto Adjust5) Press the MENU button. The Main Menu will be displayed.6) Press the SELECT button and select Setup.7) Press the OK button. The Setup Menu will be displayed.8) Press the SELECT button and select Clock Phase.(Display fine patterns as characters or a vertical striped pattern over the entire screen during Clock Phase adjustment.)• The display image may be momentarily disturbed during clock adjustment but this is not a failure.9) Press or ADJUST buttons to make the text appearclean across the screen.9) Press or ADJUST buttons to make the text appearwithout flickering.ABCBABCDEFGHIJabcdefgABCDEFGabcdABCDEFGHIJabcdefgABCDEFGabcdVerticalstreaks Before adjustment,some charactersare blurred.After adjustment,all characters appearcrisp now.After adjustment,all characters areblurred.ABCABCABCABCDEFGHIJabcdefgABCDEFGabcdABCDEFGHIJabcdefgABCDEFGabcdBefore adjustmentAfter adjustmentABCABCABCBefore adjustmentAfter adjustment