Toshiba 55L7400U series Service Manual page 10

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KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
Button
INPUT
button (on Remote)
CH
(on Remote)
VOL
+/– (on Remote)
[7] button
[9] button
[Exit] button
CAUTION: Never try to perform initialization unless you have changed the memory IC.
TEST SIGNAL SELECTION
1) While displaying the adjustment menu, every pressing of
built-in test patterns on screen as described below.
Normal
Picture
Red screen
When a pattern is changed at the time of an ATV display, it can display only for a moment.
SELECTING THE ADJUSTING ITEMS
1) While displaying the adjustment menu, press the
order of table.
(CH
ADJUSTING THE DATA
1) While displaying the adjustment menu, press the VOL +/– button to change the value of data in the range
from 00H to FFH. The variable range depends on the adjusting item.
EXIT FROM SERVICE MODE
1) Press the [Exit] button on Remote.
Green screen
button for reverse order)
Function
Test signal selection
Selection of the adjustment items
Change of the data value
Automatic A/D Adjustment
(PC, Component, Composite(PAL, NTSC))
Self Check display ON
Exit from Service mode
Self Check display Off
INPUT
button on the Remote Control changes the
Blue screen
CH
button to cycle through the adjustment items in the
(2/3)

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