In & Out Interface Test; Rgbwb; Crosstalk; Sample - Technics SX-KN7000P Service Manual

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Press the RGBWB, CROSSTALK, SAMPLE, CONTRAST or VIDEO OUT button to
begin the respective test. (refer to

RGBWB:

All the dots light in red, green, blue, white, and finally black. The display can be held
by pressing the DISPLAY HOLD button.

CROSSTALK:

An H pattern is shown. LCD crosstalk can be evaluated. To exit this test, press the
EXIT button.

SAMPLE:

Several display patterns shown during normal use are shown. The display can be
held by pressing the DISPLAY HOLD button.
CONTRAST:
The test pattern is shown. Adjust the contrast by the CONTRAST control on the
right of the LCD. To exit this test, press the EXIT button.
VIDEO OUT:
Check each display mode of PAL and NTSC. To exit this test, press the EXIT button.
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If the correct display is not shown during these tests, the LCD or LCD drive circuit
may be defective.
8.7. In & Out interface test
Fig.27 )
Fig.28
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