Read Sony ICD-UX543 / ICD-UX543F / ICD-UX544F Service Manual online
ICD-UX543/UX543F/UX544F
19
4-8. 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.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 15)
2. Press the [
>
] or [
.
] keys to select the “RTC TEST”, and
press the [
N
] key.
3. The self-test of RTC module is executed, and result is dis-
played.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
LCD Display
RTC self-test result
<RTC TEST>
OK
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-9. BATT A/D
A/D value (voltage value, temperature value and IC operation
state) acquisition can be performed.
A/D value (voltage value, temperature value and IC operation
state) acquisition can be performed.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 15)
2. Press
the
[
>
] or [
.
] keys to select the “BATT A/D”, and
press the [
N
] key.
3. A/D value (voltage value, temperature value and IC operation
state) are acquired, and they are displayed.
(8 bit (The bit shift after LSB side 2 bit omission))
Displayed values are always updated.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
LCD Display
<BATT A/D>
BAT:A7 TEMP:72
XST: A2
XST: A2
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-10. LOW
DET
LOWBATT_XDET (Battery voltage decrease detection signal)
can be checked.
can be checked.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 15)
2. Press
the
[
>
] or [
.
] keys to select the “LOW DET”, and
press the [
N
] key.
3. The state of LOW DET is displayed.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
LCD Display
<LOW DET>
LOW DET : OFF
OFF : LOWBATT_XDET=1 (H)
ON : LOWBATT_XDET=0 (L)
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-11. VBUS
VBUS detection signal can be checked.
VBUS detection signal can be checked.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 15)
2. Press the [
>
] or [
.
] keys to select the “VBUS”, and press
the [
N
] key.
3. The state of VBUS_XDET is displayed.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
LCD Display
<VBUS>
OFF
OFF
:
VBUS_XDET=1
(H)
ON
:
VBUS_XDET=0
(L)
Key input settings under this mode of operation:
[
N
] : It shifts to the suspension state.
Press the [RESET] button, in order to be released from the
suspension state.
suspension state.
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
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