ICD-UX543, ICD-UX543F, ICD-UX544F - Sony Audio Service Manual (repair manual). Page 18

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ICD-UX543/UX543F/UX544F
18
4-6. LCD CONT
LCD contrast can be adjusted.
Procedure:
1.  Enter the test mode.
 
(Refer to “SETTING THE TEST MODE” on page 15)
2.  Press the [
>
] or [
.
] keys to select the “LCD CONT”, and 
press the [
N
] key.
3.  Adjustment of LCD contrast becomes available.
 
(Displayed characters/values in the following fi gure are ex-
ample)
LCD Display
<LCD CONT>
Vol: 2B
[FF] + [FF] 
[PLAY] Save
 
Initial value:
 
The default setting saved at eMMC.
 
Key input settings under this mode of operation:
 
[.]  : Contrast value decrease
 
[>] 
: Contrast value increase
 
[
N
: The current contrast value is written to eMMC.
Releasing method:
Press the [STOP/
x
] key, return to test mode menu.
4-7. LCD PATTERN
The lighting check of LCD can be performed.
Procedure:
1.  Enter the test mode.
 
(Refer to “SETTING THE TEST MODE” on page 15)
2. Press 
the 
[
>
] or [
.
] keys to select the “LCD PATTERN”, 
and press the [
N
] key.
3.  LCD display pattern is displayed as shown in the following 
fi gure.
LCD Display Pattern
LCD Display:
All segments ON
Operation indicator LED:
Red lights
LCD Display:
All segments OFF
Operation indicator LED:
Green lights
LCD Display:
Display pattern 1
Operation indicator LED:
Orange lights
LCD Display:
Display pattern 2
Operation indicator LED:
Orange lights
 
Key input settings under this mode of operation:
 
[
>
] or [
.
] : Display pattern change
Releasing method:
Press the [STOP/
x
] key, return to test mode menu.
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