Toshiba 42L7453D, Service Manual

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KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
Button Function
button (on Remote)
Test signal selection
P (on Remote) Selection of the adjustment items
Volume +/– (on Remote) Change of the data value
[7] button Automatic A/D Adjustment
(PC, Component, Composite(PAL, NTSC))
[9] button Self Check display ON
[Exit] button Exit from Service mode
Self Check display Off
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 button on the Remote Control changes the
built-in test patterns on screen as described below.
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 P button to cycle through the adjustment items in the
order of table. (P button for reverse order)
ADJUSTING THE DATA
1) While displaying the adjustment menu, press the VOLUME +/– 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.
Normal
Picture
Red screen Green screen Blue screen