Sony ICD-TX50 Service Manual ▷ View online
ICD-TX50
13
4-4. SIN
Sine wave can be outputted.
Sine wave can be outputted.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “SIN”, and press
the [
N
/ENT] key.
3. Sine wave is outputted.
LCD Display
Displayed characters/values are example.
<SIN>
sin 1KHz
Vol:25
Vol:25
Initial value:
Play back volume : 25 (stereo)
fs
:
44.1kHz
Frequency
: sin 50Hz
sin
100Hz
sin
200Hz
sin 1KHz (default)
sin
8.5KHz
sin
10KHz
sin
19KHz
Infi nity zero
sin L 1KHz
sin R 1KHz
SWEEP (100 Hz to 3 kHz: 10 seconds)
Sound is outputted from the D-AMP built-in CPU at the time
of headphone wearing.
of headphone wearing.
Key input settings under this mode of operation:
[VOL +] : Volume up
[VOL –] : Volume down
[
>
]
: Frequency up
[
.
]
: Frequency down
Operation of others by the plug/unplug signal (headphone jack) are
based on operation of this unit.
based on operation of this unit.
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-5. BEEP
Beep sound (1.3 kHz) can be outputted.
Beep sound (1.3 kHz) can be outputted.
Procedure:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
>
] or [
.
] keys to select the “BEEP”, and press
the [
N
/ENT] key.
3. Beep sound (1.3 kHz) is outputted.
LCD Display
Displayed characters/values are example.
<BEEP>
1.3KHz ON
Vol:25
Vol:25
Key input settings under this mode of operation:
[VOL +] : Volume up
[VOL –] : Volume down
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-6. LCD CONT
Not used for the servicing.
Not used for the servicing.
4-7. LCD LOW CONT
Not used for the servicing.
Not used for the servicing.
4-8. LCD PATTERN
The check of LCD dead pixel is made.
The check of LCD dead pixel is made.
Procedure:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
>
] or [
.
] keys to select the “LCD PATTERN”,
and press the [
N
/ENT] key.
3. LCD display pattern is displayed as shown in the following
fi gure.
LCD Display Pattern
All segments on,
and red LED lights up.
and red LED lights up.
All segments off,
and green LED lights up.
and green LED lights up.
Partial segments on,
and orange LED lights up.
and orange LED lights up.
Key input settings under this mode of operation:
[
>
] or [
.
] : Display pattern change
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-9. RTC TEST
The self-test of RTC module can be done.
The self-test of RTC module can be done.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “RTC TEST”, and
press the [
N
/ENT] key.
3. The self-test of RTC module is executed, and result is dis-
played.
0
LCD Display
Displayed characters/values are example.
<RTC TEST>
OK
RTC self-test result
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
ICD-TX50
14
4-10. BATT
A/D
A/D value (voltage value and temperature value) acquisition can
be performed.
be performed.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “BATT A/D”, and
press the [
N
/ENT] key.
3. A/D value (voltage value and temperature value) are acquired,
and they are displayed.
(8 bit (The bit shift after LSB side 2 bit omission))
Displayed values are always updated.
LCD Display
Displayed characters/values are example.
<BATT A/D>
BAT:ACTMP:71
XST:A3
XST:A3
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-11. LOW DET
LOWBATT_XDET (Battery voltage decrease detection signal)
can be checked.
LOWBATT_XDET (Battery voltage decrease detection signal)
can be checked.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “LOW DET”, and
press the [
N
/ENT] key.
3. The state of LOW DET is displayed.
LCD Display
Displayed characters/values are example.
<LOW DET>
LOW DET : OFF
OFF : LOWBATT_XDET=1 (H)
ON : LOWBATT_XDET=0 (L)
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-12. VBUS
VBUS detection signal can be checked.
VBUS detection signal can be checked.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “VBUS”, and press
the [
N
/ENT] key.
3. The state of VBUS_XDET is displayed.
LCD Display
Displayed characters/values are example.
<VBUS>
OFF
OFF
:
VBUS_DET=0
(L)
ON
:
VBUS_DET=1
(H)
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-13. KEY COUNT
The count value of the keys and switches operation can be dis-
played. Distinction of the keys and switches which operated is not
performed.
The count value of the keys and switches operation can be dis-
played. Distinction of the keys and switches which operated is not
performed.
Note: It cannot move to other modes from this mode.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “KEY COUNT”,
and press the [
N
/ENT] key.
3. The count value of the keys and switches operation is dis-
played.
LCD Display
Displayed characters/values are example.
<KEY COUNT>
00000
Count value increase conditions:
One of buttons is pushed.
One of switches is slid.
micro SD card is inserted.
Headphone is inserted.
Releasing method:
Press the [RESET] key on rear side of main unit, reboot this unit.
Press the [RESET] key on rear side of main unit, reboot this unit.
4-14. SLEEP
It can change into the sleep state for standby current value mea-
surement.
It can change into the sleep state for standby current value mea-
surement.
Note: It cannot move to other modes from this mode.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “SLEEP”, and press
the [
N
/ENT] key.
3. The sleep state selection screen is displayed.
LCD Display
Displayed characters/values are example.
<SLEEP>
SLEEP:NORMAL
Please Enter
Please Enter
Key input settings under this mode of operation:
[
>
] or [
.
] : Sleep mode change (NORMAL
DEEP)
4. This unit shifts to the sleep state by pressing the [
N
/ENT] key
again.
LCD Display
Releasing method:
Press the [RESET] key on the rear side of main unit to turn off the
power.
Press the [RESET] key on the rear side of main unit to turn off the
power.
ICD-TX50
15
4-15. BATT LIFE
The result measured with the battery life measurement fi rmware
can be displayed.
The result measured with the battery life measurement fi rmware
can be displayed.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “BATT LIFE”, and
press the [
N
/ENT] key.
3. The result measured with the battery life measurement fi rm-
ware is displayed.
LCD Display
Displayed characters/values are example.
<BATT LIFE>
---- - REC 0 Lv1
00/00/00 00:00:00
00/00/00 00:00:00
Recoding mode/
Recodig and playback type/
Battery level
Year/months/days/
Hours/minutes/seconds
Recodig and playback type/
Battery level
Year/months/days/
Hours/minutes/seconds
Recording mode:
Recording mode of the fi le recorded or played back at the time
of measurement is displayed.
of measurement is displayed.
(192/128/M48/LPCM
(fi le format), H/M/L (microphone sensi-
tivity) etc.)
Recording and play back type:
The state at the time of measurement is displayed.
0: Internal memory
1: External memory
Battery level:
The battery life value is displayed. Value is changed by press-
ing the [
ing the [
>
] or [
.
] keys.
Battery
lebel:
LV1= 100%
LV2= 50%
LV3= 25%
LV4= >25%
LV5= 0%
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-16. WRITER VER
Not used for the servicing.
Not used for the servicing.
4-17. CHG LOG
The charge log saved at SRAM can be copied to eMMC.
The charge log saved at SRAM can be copied to eMMC.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “CHG LOG”, and
press the [
N
/ENT] key.
3. The charge log saved at SRAM is copied to eMMC.
LCD Display
Displayed characters/values are example.
<CHG LOG>
Success
Releasing method:
Press the [
Press the [
x
STOP] key, return to test mode menu.
4-18. LREC LOG
Not used for the servicing.
Not used for the servicing.
4-19. LREC LOG Clear
Not used for the servicing.
Not used for the servicing.
4-20. MENU INIT
This unit can return to the factory shipment settings.
This unit can return to the factory shipment settings.
Note: Unique ID and LCD contrast value are not initialized.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
>
] or [
.
] keys to select the “MENU INIT”, and
press the [
N
/ENT] key.
3. Initialization is performed.
“Success” is displayed, and this unit reboots.
16
ICD-TX50
SECTION 4
EXPLODED VIEWS
1
9-885-167-29 SV PANEL (REAR) ASSY (US, CND, LA)
1
9-885-167-30 SV PANEL (REAR) ASSY (AEP)
1
9-885-167-31 SV PANEL (REAR) ASSY (E)
1
9-885-167-32 SV PANEL (REAR) ASSY (KR)
1
9-885-167-33 SV PANEL (REAR) ASSY (CH)
2
3-225-873-29 SCREW
(M1.4)
3
9-885-167-34 SV ORNAMENT MIC ASSY
4
4-299-924-01 SLEEVE
5
4-299-925-01 SPRING
(CLIP)
6
4-299-931-01 ORNAMENT
(CLIP)
7
4-299-930-01 SHAFT
(CLIP)
8
4-299-928-01 CLIP
9
4-299-921-01 BASE
(CLIP)
10
3-225-873-27 SCREW
(M1.4)
11
4-424-594-01 BRACE
(REAR)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet’s Color
4-1. PANEL (REAR) SECTION
case (front) section
1
2
6
2
2
3
4
9
10
10
11
5
6
7
8
7
• Abbreviation
CH
CH
: Chinese model
CND : Canadian model
KR
KR
: Korean model
LA
: Latin American model
Click on the first or last page to see other ICD-TX50 service manuals if exist.