Sony ICD-SX25 / ICD-SX25VTP Service Manual ▷ View online
5
ICD-SX25/SX25VTP
2-3. CASE BLOCK ASSY
1
Slide the chassis from the case until the connector becomes visible.
3
Slide the chassis from the case completely and remove it.
Pass the flexible board through
the hole during assembling.
the hole during assembling.
2
connector
11pin (CN7005)
2-4. AUDIO BOARD, MICROPHONE UNIT (MIC2/3)
7
Remove the microphone unit (MIC2/3)
from the groove.
5
Remove soldering at two positions of the speaker cable.
2
1
connector
(CN7201)
3
LCD holder
4
liquid crystal
display panel
three claws
6
connector
4pin (CN3001)
8
AUDIO board
6
ICD-SX25/SX25VTP
2-5. ORNAMENT BELT, SW BOARD
3
Remove the SW board by releasing the claws at six locations
while being careful not to break them.
1
knob (HOLD)
2
ornamental belt
six claws
2-6. COVER (CHASSIS) BLOCK ASSY
claw
claw
chassis block assy
claw
claw
1
cover (CHASSIS)
2
speaker (1.6cm)
7
ICD-SX25/SX25VTP
2
1
Remove the two battery terminals
from the groove of the chassis.
chassis block assy
7
MAIN board
5
battery (–) terminal
cap (TERMINAL)
4
battery (+) terminal
3
Remove soldering from the two points.
6
liquid crystal
display panel
2-7. MAIN BOARD, LIQUID CRYSTAL DISPLAY PANEL
8
ICD-SX25/SX25VTP
SECTION 3
TEST MODE
[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)
[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 : SX25
61
01
0090
01
0090
-25
61
A B
01 0090-25
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
>
>
>
>
.
.
.
.
>
>
>
>
.
.
.
.
[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
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.
H
tMtLtHtMt ...
• 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–
• 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.
RECTNL switch is performed with the DIVIDE key.
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 ef-
fective in the through-playback mode.
• The directional microphone selection is effective in the DSP
MONO through mode.
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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