ICD-LX30 - Sony Audio Service Manual (repair manual). Page 10

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ICD-LX30
10
4-4. SIN
Sine wave can be outputted.
Procedure:
1.  Enter the test mode.
2.  Press the [FF/
M
] or [FR/
m
] keys to select the “SIN”, and 
press the [PLAY/ENTER/
N
] key.
3.  Sine wave is outputted.
<SIN>
Vol:20
LCD Display
*Displayed characters/values are example.
 
Initial value:
 
Play back volume  : 20 (stereo)
 fs 
44.1kHz
 
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 [FF/
M
] or [FR/
m
] keys to select the “BEEP”, and 
press the [PLAY/ENTER/
N
] key.
3.  Beep sound (1.3 kHz) is outputted.
<BEEP>
1.3KHz ON
LCD Display
*Displayed characters/values are example.
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 [FF/
M
] or [FR/
m
] keys to select the “LCD CONT”, 
and press the [PLAY/ENTER/
N
] 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 serial fl ash.
 
Key input settings under this mode of operation:
 [FR/
m
: Contrast value decrease
 [FF/
M
: Contrast value increase
 [PLAY/ENTER/
N
]  : The current contrast value is written to
 
 
  serial fl ash.
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 [FF/
M
] or [FR/
m
] keys to select the “LCD PAT-
TERN”, and press the [PLAY/ENTER/
N
] 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:
 [FF/
M
] or [FR/
m
] : Display pattern change
Releasing method:
Press the [STOP/
x
] key, return to test mode menu.
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