Hitachi 32PD7800, 42PD7800 Troubleshooting Actions to Correct Abnormal Displays, Example

Page 52

TROUBLESHOOTING (continued)

Actions to Correct Abnormal Displays

Depending on the kind of system equipment used, images may not be displayed normally. In this case, make the adjustments suggested below. (only for RGB2)

Symptom 1

Text displayed across the screen appears vertically streaked, with some characters blurred (Figure 1).

(RGB input).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1

 

 

 

Vertical

Before adjustment,

 

 

 

 

 

 

streaks

some characters

 

 

 

 

 

 

 

 

 

are blurred.

 

After adjustment,

 

 

 

 

ABCDEFGHIJ

 

 

 

ABC

 

 

 

 

abcdefgABCDEFGabcd

 

ABC

all characters appear

 

 

 

 

 

crisp now.

Example

 

 

 

ABCDEFGHIJ

 

 

 

 

 

 

 

abcdefgABCDEFGabcd

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

After adjustment, ABC all characters are

blurred.

1)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 Adjust

Adjustment 5)

Press the MENU button. The Main Menu will be displayed.

procedure

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.

The display image may be momentarily disturbed during clock adjustment but this is not a failure.

Symptom 2

Text displayed across the screen appears blurred in its entirety (Figure 2).

 

 

 

 

A fine pattern flickers when displayed on the screen (Figure 3).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2

 

Before adjustment

Figure 3

 

 

Before adjustment

 

 

ABCDEFGHIJ

ABC

 

 

 

 

 

 

 

abcdefgABCDEFGabcd

 

 

 

 

 

 

 

 

ABCDEFGHIJ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

abcdefgABCDEFGabcd

 

 

 

 

 

 

Example

 

 

After adjustment

 

 

 

After adjustment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ABC

1)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 Adjust Adjustment 5) Press the MENU button. The Main Menu will be displayed. procedure 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.)

9) Press or ADJUST buttons to make the text appear

9) Press or ADJUST buttons to make the text appear

clean across the screen.

without flickering.

 

 

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Contents 32PD7800 42PD7800 Features Contents Safety Instructions About the SymbolsSafety Instructions About the Symbols Be cautious of the power cord connectionBe sure to keep safety ground connection Be careful in handling the battery of the remote controlAvoid a high temperature environment Remove the power cord for complete separationBe careful in operating power swivel Installation environmentPrecautions for the cable connection Precaution during transportationDo not physically impact the remote control Set the sound volume at a suitable levelImage Retention of Plasma Display Component Names Main UnitHandling the Remote Control Component Names Remote controlLoading Batteries DVD and SAT Recall Video/RGB Photo Input 37/42 onlyUP / Down button Color buttons Button for Teletext ModeSUB Title button Reveal button Installation Instructions InstallationAnti-tumble measures Securing to a wall or pillarAn example of connecting audio visual devices HdmiPrecautions when connecting the antenna Installation Instructions Connecting to a PC DVIRGB1 DVI-PC RGB2 RGB For details, refer toInstallation Instructions Mounting the Speaker Unit Treating the wire endsMounting the Speaker System to the Monitor Mounting the Speaker System to the MonitorHow to connect Speaker Attach the speaker cables to speaker systemsWith the speaker unit Installation Instructions Mounting the Side InputWithout the speaker unit Installation Instructions Power Cord Connection Turning Power On and Off Operating InstructionsIndicating lamp IndicatingInput Switching Size SwitchingDisplay size selection diagram Operating InstructionsOperating Instructions Size Switching continude Display area selection diagram RGB inputUsing a wide-screen monitor During RGB Input RGB1 set to DVI-PC and RGB2 set to RGBOperating Instructions Volume Adjustment Volume setting valueAdjustment status guide display Audio MuteAdjust for preferred angle Operating Instructions Power SwivelPress Swivel button Operating Instructions Input Signal Screen Display SELECT/ADJUST Multi Mode Multi PictureDisplaying Multi Picture Pictures Split 4 pictures 12 picturesPictures Split Operating Instructions Displaying Multi PicturePictures Freeze button Picture FreezingSplit Strobe Photo Input Display 37/42 only Operating the Photo InputSpecification Error InformationOperating Instructions Photo Input Display 37/42 only Photo Input FunctionOperating Instructions Photo Input Display 37/42 only Menu button OK button Recall button Return button Using the Menu Screen On-screen display systemButtons Operating Instructions Setup Menu TV mode MenuSelected characters Setup hint PAL SecamOperating Instructions Setup Menu Video mode Off 1280x768 1366x768 RGB1 DVI-PCMovie Function Menu Operating Instructions Picture Menu TV/Video mode Picture Mode Color TemperatureContrast Mode ResetColor Management MagentaCyan Color DecodingPicture Enhancement Audio Menu Language Menu Timer MenuHours Minutes Automatic Store Other FunctionsMenu Display Registration condition Other Functions Audio Switching A2 / Nicam / Sound Multiplex TV modeBilingual / Dual sound broadcast Stereo sound broadcastOther Functions Power Save Mode DVD Player/STB SelectionSignal Check RGB mode Set up hintOther Functions DVD Player/STB Selection Status Display ActionSymptoms That Seemingly Appear to be Failures TroubleshootingSymptom Point to check English Troubleshooting Actions to Correct Abnormal Displays ExampleProduct Specifications DisplayProduct Specifications Signal Input RGB terminal D-sub 15-pin connectorInput connector pin specifications Photo-input connector pin specificationsProduct Specifications Recommended Signal List Applicable video signals for input terminal TV modeWith component input AV1, AV2 and RGB2-component input With Hdmi input AV6 inputKHz MHz With Digital signal input640 400 70.08 31.47 25.18 480 59.94 With Analog signal input RGB2 input Screw