Read Sony ICD-SX20 / ICD-SX30 / ICD-SX40 Service Manual online
9
ICD-SX20/SX30/SX40
SECTION 3
TEST MODE
[Setting Method of the Test Mode]
To enter the test mode, turn on the HOLD . switch while pressing
the x key and VOL+ key at the same time with the power on.
the x key and VOL+ key at the same time with the power on.
[Exiting Method of the Test Mode]
Exit the test mode by turning off the power.
[Initial Status of the Test Mode]
When the test mode is set, the LCD display appears as shown below.
LCD display (Example)
[Operation in the Test Mode]
After entering the test mode, you can move within the test menu by
pressing the . / > key. You can move to the submenu by
pressing the x
pressing the . / > key. You can move to the submenu by
pressing the x
•
B key. Then each test mode can be executed.
1. LCD test
• LCD is tested of all light-on and all light-off.
2. Audio test
Perform the through-playback and sine wave output.
• Contents of the submenu
• Contents of the submenu
DSP ST: DSP STEREO through mode
DSP MO: DSP MONO through mode
SIN: 1 kHz sine wave output mode
DSP MO: DSP MONO through mode
SIN: 1 kHz sine wave output mode
• Select the microphone sensitivity with the A-B
switch.
HtMtLtHtMt ...
• The VOR detection operation can be checked by the LED.
Sound: The red LED is turned on. No sound: The red LED is
turned off.
• MUTE can be set to “ON” or “OFF” with the ERASE key.
• The sound volume can be adjusted with the VOL+ key or
• The sound volume can be adjusted with the VOL+ key or
VOL- key during the audio test except the MUTE mode.
• In the directional microphone selection, ON/OFF of the
DIRECTNL switch is performed with the DIVIDE key.
DIRECTNL switch ON : The green LED is turned on.
DIRECTNL switch ON : The green LED is turned on.
OFF : The green LED is turned off.
• In the audio test mode the operation is performed according to
JACK detection.
• The microphone sensitivity, sound volume and MUTE (on/off)
are displayed on the LCD.
• The microphone sensitivity selection and the VOR test are
effective in the through-playback mode.
• The directional microphone selection is effective in the DSP
MONO through mode.
[Flow Chart of the Test Mode]
Iris(DSP) version : 61
LPEC ST version : 01
SakuraR(CPU) version : 0.90
(In
LPEC ST version : 01
SakuraR(CPU) version : 0.90
(In
α
version or
β
version, A or B is displayed)
Model code : SX20
61
01
0090
01
0090
-20
61
A B
01 0090-20
START
>
.
.
.
>
>
.
Initial status of test mode
Model code, LPEC ST,
F/W version display
TEST MODE
END
TEST MODE
Turn off the power
(Extract the batteries or DC jack)
(Extract the batteries or DC jack)
>
USB
KEY COUNT
RESET MENU
LED
B A T T
KEY
LCD
AUDIO
SLEEP
BEEP
RTC
>
>
>
>
.
.
.
.
>
>
>
>
.
.
.
.
x
•
B
(LCD off)
.
>
(select),
(set)
x
•
B
.
>
LCD OFF
LCD CHK
LCD ALL
:
:
LCD ALL
CHK START
CHK END
LCD
x
x
x
x
C
B
A
REC
STSPLP
L
H
YH
88
8888 888888
MM
DS
m
x
•
B
DSP STEREO through mode / MIC : M / MUTE : ON / VOL-LEVEL : 12
t
"M / on / 12 / DSP ST"
DSP MONO through mode / MIC : H / MUTE : OFF / VOL-LEVEL : 23
t
"H / oF / 23 / DSP MO"
1k sine wave output mode / MUTE : ON / VOL-LEVEL : 06 t "on / 06 / SIN"
:
:
DSP MONO
SIN WAVE
DSP ST
DSP ST
AUDIO
DSP ST
onDSP ST12
onSIN WAV06
x
x
x
H
m
oFDSP M 23
L
m
.
>
(select),
(set)
x
•
B
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