ICD-UX522, ICD-UX522F, ICD-UX523, ICD-UX523F - Sony Audio Service Manual (repair manual). Page 13

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ICD-UX522/UX522F/UX523/UX523F
13
4-4. SIN
Sine wave can be outputted.
Procedure:
1.  Enter the test mode.
2. Press 
the 
[
>
] or [
.
] keys to select the “SIN”, and press 
the [
N
/ENTER] key.
3.  Sine wave is outputted.
<SIN>
Vol:10
LCD Display
*Displayed characters/values are example.
 
Initial value:
 
Play back volume  : 10 (stereo)
 fs 
44.1kHz
 
Sound is outputted from the D-AMP built-in CPU at the time 
of headphone wearing.
 
Key input settings under this mode of operation:
 
[VOL +]  : Volume up
 
[VOL –]  : Volume down
Operation of others by the plug/unplug signal (the external micro-
phone jack and headphone jack) are based on operation of this unit.
Releasing method:
Press the [STOP/
x
] key, return to test mode menu.
4-5. BEEP
Beep sound (1.3 kHz) can be outputted.
Procedure:
1.  Enter the test mode.
2. Press 
the 
[
>
] or [
.
] keys to select the “BEEP”, and press 
the [
N
/ENTER] key.
3.  Beep sound (1.3 kHz) is outputted.
<BEEP>
1.3KHz ON
Vol:10
LCD Display
*Displayed characters/values are example.
 
Key input settings under this mode of operation:
 
[VOL +]  : Volume up
 
[VOL –]  : Volume down
Releasing method:
Press the [STOP/
x
] key, return to test mode menu.
4-6. LCD CONT
LCD contrast can be adjusted.
Procedure:
1.  Enter the test mode.
2.  Press the [
>
] or [
.
] keys to select the “LCD CONT”, and 
press the [
N
/ENTER] key.
3.  Adjustment of LCD contrast becomes available.
<LCD CONT>
Vol: 16
[FF]+ [FR]
[PLAY] Save
LCD Display
*Displayed characters/values are example.
 
Initial value:
 
The default setting saved at eMMC.
 
Key input settings under this mode of operation:
 
[.] 
: Contrast value decrease
 
[>] 
: Contrast value increase
 
[
N
/ENTER]  : 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 check of LCD dead pixel is made.
Procedure:
1.  Enter the test mode.
2. Press 
the 
[
>
] or [
.
] keys to select the “LCD PATTERN”, 
and press the [
N
/ENTER] key.
3.  LCD display pattern is displayed as shown in the following 
fi gure.
‡
‡
‡‡‡‡
LCD Display Pattern
All segments ON
All segments OFF
Partial segments ON
 
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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