Hitachi 32LD9700U User Manual page 73

TROUBLESHOOTING (continued)
Symptom and Check List (continued)
Symptoms
Cannot display the image from "Photo Input function".
The image on the screen is moving in
an oblique direction.
(RGB input mode only)
The coarse horizontal stripes could be
seen in full-display mode.
(RGB input mode only)
The part of the image is lacking.
The horizontal stripes are moving
vertically with fl ickering screen.
(RGB input mode only)
When the characters are displayed
on the whole screen, the vertical
stripes appear and some of the
characters are blurred.
(RGB input mode only)
When the letter string is displayed in
full-screen, all of the characters on
the screen are blurred.
(RGB input mode only)
When the small patterns are
displayed on the screen, the entire
screen is fl ickering.
(RGB input mode only)
The thickness of the letters, lines, etc is not displayed
evenly.
(RGB input mode only)
No Picture or sound is output.
(DTT mode only)
Forgotten channel lock code.
(DTT mode only)
Forgotten menu lock code.
(DTT mode only)
Due to the bad reception, block noise interferes during
DTT mode.
(DTT mode only)
72
Check the connecting equipments and image format.
(Please refer to "Photo Input function".)
Adjust "Horizontal Clock" and "Clock Phase".
Adjust "Horizontal Clock".
AAAAA
Try "Auto Adjust". (RGB input mode only)
Check the Signal status of the PC by pressing
on the remote control.
If the Vertical Frequency of the PC is set to less than 85Hz,
adjust its level higher (up to 85Hz).
Set "Vertical Filter" to ON.
(Please note that you will have lower vertical resolution with
this action.)
Try "Auto Adjust".
ABCDEFGHIJ
If the display condition is not improved with Auto Adjust,
abcdefgABCDEFGabcd
ABCDEFGHIJ
adjust "Horizontal Clock".
abcdefgABCDEFGabcd
Try "Auto Adjust".
ABCDEFGHIJ
If the condition is not improved with Auto Adjust, adjust
abcdefgABCDEFGabcd
ABCDEFGHIJ
abcdefgABCDEFGabcd "Clock Phase" till you get clearest image.
Try "Auto Adjust".
If the condition is not improved with Auto Adjust, adjust
"Clock Phase" till you get fl icker-free display.
It could happen when the image with more than 768 lines
of vertical resolution is displayed.
Please note this is not malfunction.
It might occur because it is tuned to digital teletext channel.
Return to another channel.
Re-install channel to cancel channel lock.
Contact the customer service listed on the rear page.
Check the aerial system to improve signal quality.
Check list Page
61 65
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66
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button
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