Test Mode - Sony ICD-SX25 Service Manual

ICD-SX25/SX25VTP
[Setting Method of the Test Mode]
To enter the test mode, turn on the HOLD . switch while press-
ing 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)
A B
61
01 0090-25
61
Iris(DSP) version : 61
01
LPEC ST version : 01
0090 SakuraR(CPU) version : 0.90
(In α version or β version, A or B is displayed)
-25
Model code : SX25
[Flow Chart of the Test Mode]

TEST MODE

Initial status of test mode
Model code, LPEC ST,
F/W version display
>
.
LCD
>
.
AUDIO
>
.
SLEEP
>
.
BEEP
>
.
>
RTC
.
TEST MODE
8
SECTION 3
TEST MODE
START
.
>
RESET MENU
>
KEY COUNT
>
USB
>
LED
>
>
KEY B A T T
.
Turn off the power
(Extract the batteries or DC jack)
END
[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•B key. Then each test mode can be executed.
1. LCD test
• LCD is tested of all light-on and all light-off.
x•B
LCD LCD ALL
x
:
LCD OFF
LCD CHK
LCD ALL
:
A
88
2. Audio test
Perform the through-playback and sine wave output.
• Contents of the submenu
DSP ST: DSP STEREO through mode
DSP MO: DSP MONO through mode
SIN: 1 kHz sine wave output mode
• Select the microphone sensitivity with the A-B
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 VOL–
.
key during the audio test except the MUTE mode.
• In the directional microphone selection, ON/OFF of the DI-
RECTNL switch is performed with the DIVIDE key.
.
DIRECTNL switch ON : The green LED is turned on.
• 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 ef-
fective in the through-playback mode.
• The directional microphone selection is effective in the DSP
MONO through mode.
DSP STEREO through mode / MIC : M / MUTE : ON / VOL-LEVEL : 12
DSP MONO through mode / MIC : H / MUTE : OFF / VOL-LEVEL : 23
1k sine wave output mode / MUTE : ON / VOL-LEVEL : 06 t "on / 06 / SIN"
x•B
AUDIO
. > (select),
x•B
(set)
(LCD off)
STSPLP
B C REC
YH MM DS
L H
8888 888888
m
x x
OFF : The green LED is turned off.
t "M / on / 12 / DSP ST"
t "H / oF / 23 / DSP MO"
. > (select),
x•B
DSP ST
:
DSP MONO
SIN WAVE
DSP ST H
onDSP ST12 oFDSP M 23
m
:
x x
CHK START
. >
CHK END
x
switch.
(set)
L
onSIN WAV06
m
x