Sony ICD-PX440 (serv.man2) Service Manual ▷ View online
ICD-PX440
13
4. OPERATION OF THE TEST MODE
4-1. LCD PATTERN
The lighting check of LCD can be performed.
4-1. LCD PATTERN
The lighting check of LCD can be performed.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press
the
[
>
] or [
.
] keys to select the “LCD PATTERN”,
and press the [
N
] key.
3. LCD display pattern is displayed as shown in the following
fi gure.
LCD Display Pattern
LCD Display:
All segments OFF
All segments OFF
Operation indicator LED:
Green lights
Green lights
LCD Display:
All segments ON
All segments ON
Operation indicator LED:
Red lights
Red lights
LCD Display:
Display pattern 1
Display pattern 1
Operation indicator LED:
Orange lights
Orange lights
LCD Display:
Display pattern 2
Display pattern 2
Operation indicator LED:
Orange lights
Orange lights
Key input settings under this mode of operation:
[
>
] or [
.
] : Display pattern change
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-2. KEY CHECK2
Not used for the servicing.
Not used for the servicing.
4-3. VERSION
Model name, initial language, fi rmware version, IPL2 version,
CPU version, eMMC maker code, eMMC capacity, destination,
board ID (board discrimination number) and unique ID can be
confi rmed.
Model name, initial language, fi rmware version, IPL2 version,
CPU version, eMMC maker code, eMMC capacity, destination,
board ID (board discrimination number) and unique ID can be
confi rmed.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press
the
[
>
] or [
.
] keys to select the “VERSION”, and
press the [
N
] key.
3. Model name, initial language, fi rmware version, IPL2 version
and CPU version are displayed on page 1/2 of LCD display.
Press the [
>
] or [
.
] keys, eMMC maker code, eMMC
capacity, destination, board ID (board discrimination number)
and unique ID are displayed on page 2/2 of LCD display.
and unique ID are displayed on page 2/2 of LCD display.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
ICD-PX440 /E
MAINFW:1.00.00
IPL2FW:1.00.00
LSI 4252
MAINFW:1.00.00
IPL2FW:1.00.00
LSI 4252
D:11 M:04 L:06
B:YMMDDXXXX#
XXXXXXXXXXXX
B:YMMDDXXXX#
XXXXXXXXXXXX
<VERSION>
<VERSION>
LCD of Display (page 2/2)
LCD of Display (page 1/2)
Board ID (board
discrimination number)
Unique ID
Model name/Destination
Firmware version
IPL2 version
IPL2 version
CPU version
Initial language
eMMC capacity
eMMC maker code
Board ID (board discrimination number):
Y
:
Year
(Hexadecimal)
MM :
Month
DD :
Day
XXXX : The number of the order of production of the above-
mentioned date
#
: Jig number
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
ICD-PX440
14
4-4. KEY CHECK
Operation of keys and switches can be checked, and this unit can
return to the factory shipment settings (Peculiar parameters, such
as LCD contrast, do not initialize).
Operation of keys and switches can be checked, and this unit can
return to the factory shipment settings (Peculiar parameters, such
as LCD contrast, do not initialize).
Note 1: It cannot move to other modes from this mode.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press the [
>
] or [
.
] keys to select the “KEY CHECK”,
and press the [
N
] key.
3. Whenever any keys of this unit are pressed or any switches of
this unit are slid, the button count decreases.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
KEY:PREV
REMAIN: 20
REMAIN: 20
<KEY CHECK>
LCD Display
Button count
Confirmed key name
Target keys:
[STOP/
x
], [
.
], [
>
], [
N
], [REC/PAUSE
z
], [
A-B],
[ERASE], [VOL +], [VOL –], [MENU], [FOLDER], [T-
MARK], [
MARK], [
v
], [
V
]
Target switches:
[DPC (SPEED CTRL)] (ON, OFF), [HOLD•POWER ON/
OFF] (“POWER” direction, return from “POWER” direction,
“HOLD” direction, return from “HOLD” direction)
OFF] (“POWER” direction, return from “POWER” direction,
“HOLD” direction, return from “HOLD” direction)
4. After all the keys and switches are decided, initialization is
performed.
5. “Success” is displayed, and this unit reboots.
Success
LCD Display
Note 2: This unit is not initialized when “Failure” is displayed.
Releasing method:
Remove battery.
Remove battery.
4-5. AUDIO LOOP
Audio loop back operation can be performed.
Audio loop back operation can be performed.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press
the
[
>
] or [
.
] keys to select the “AUDIO LOOP”,
and press the [
N
] key.
3. Audio loop back operation is performed.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
Note: When mode is active, the recording level for VOR is acquired at in-
tervals of 1 second, and it is displayed. When the acquired recording
level is larger than the VOR setting value, the operation indicator
LED redly lights up.
level is larger than the VOR setting value, the operation indicator
LED redly lights up.
(Threshold value is based on operation of this unit)
MIC:M AGC:ON
Vol:10 MIC IN
D H0 D0
VOR:00003FFF
Vol:10 MIC IN
D H0 D0
VOR:00003FFF
D: DAMP, (A: Codec)
H0: HP_MUTE=L, (H1: H)
D0: DAMP_XSEL=L, (D1: H)
H0: HP_MUTE=L, (H1: H)
D0: DAMP_XSEL=L, (D1: H)
<AUDIO LOOP>
LCD Display
Initial value:
Play back volume
: 10 (stereo)
fs
: 44.1 kHz
Microphone sensitivity : M
External microphone
: MIC IN
HP_MUTE
:
L
DAMP_XSEL
:
L
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
[REC/PAUSE/
z
] : Microphone sensitivity change
(H
→ M → L → MusicH → MusicL →
H...)
[
N
]
: External microphone sensitivity
(MIC IN
↔ LINE IN)
[
.
]
: AGC operation (ON
↔ OFF)
[
>
]
: The headphone amplifi er change
(D-AMP
↔ Codec)
[ERASE]
: HP_MUTE forcible operation
Only HP_MUTE is changed with a
play back state held (ON
↔ OFF).
[
/
A-B]
: DAMP_XSEL forcible operation
Only DAMP_XSEL is changed with
a play back state held (ON
↔ OFF).
Operation of others by the plug/unplug signal (the external micro-
phone jack and headphone jack) are based on operation of this unit.
phone jack and headphone jack) are based on operation of this unit.
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
ICD-PX440
15
4-6. SIN
Sine wave can be outputted.
Sine wave can be outputted.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press
the
[
>
] or [
.
] keys to select the “SIN”, and press
the [
N
] key.
3. Sine wave is outputted.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
Vol:10
<SIN>
LCD Display
Initial value:
Play back volume : 10 (stereo)
fs
:
44.1kHz
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
Operation of others by the plug/unplug signal (the external micro-
phone jack and headphone jack) are based on operation of this unit.
phone jack and headphone jack) are based on operation of this unit.
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-7. BEEP
Beep sound (1.3 kHz) can be outputted.
Beep sound (1.3 kHz) can be outputted.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press
the
[
>
] or [
.
] keys to select the “BEEP”, and press
the [
N
] key.
3. Beep sound (1.3 kHz) is outputted.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
1.3KHz ON
Vol:10
Vol:10
<BEEP>
LCD Display
Output to the speaker or headphone and output level are based on
operation of this unit.
operation of this unit.
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-8. LCD CONT
LCD contrast can be adjusted.
LCD contrast can be adjusted.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press the [
>
] or [
.
] keys to select the “LCD CONT”, and
press the [
N
] key.
3. Adjustment of LCD contrast becomes available.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
Vol: 12
[FF]+ [FR]
[FF]+ [FR]
[PLAY] Save
<LCD CONT>
LCD Display
Initial value:
The default setting saved at eMMC.
Key input settings under this mode of operation:
[.] : Contrast value decrease
[>]
: Contrast value increase
[
N
]
: The current contrast value is written to eMMC.
Releasing method:
Press the [STOP/
Press the [STOP/
x
] 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.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
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)
OK
<RTC TEST>
LCD Display
RTC self-test result
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
ICD-PX440
16
4-10. BATT
A/D
A/D value (voltage value and temperature value state) acquisition
can be performed.
can be performed.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press the [
>
] or [
.
] keys to select the “BATT A/D”, and
press the [
N
] key.
3. A/D value (voltage value and temperature value state) are ac-
quired, 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)
AC:7B 2AC:8A
BC:7B 4BC:8A
TEMP:8C
BC:7B 4BC:8A
TEMP:8C
<BATT A/D>
LCD Display
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
4-11. ZLOAD
Not used for the servicing.
Not used for the servicing.
4-12. LOW
DET
Not used for the servicing.
4-13. 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 12)
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)
OFF
<VBUS>
LCD Display
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.
Releasing method:
Press the [STOP/
Press the [STOP/
x
] key, return to test mode menu.
Remove battery, in order to be released from the suspension state.
4-14. FM
TEST
Not used for the this unit.
4-15. KEY
COUNT
The count value of the keys and switches operation can be dis-
played. However, distinction of kind of the keys and switches
which operated is not performed.
Only the key pressed fi rst is counted.
played. However, distinction of kind of the keys and switches
which operated is not performed.
Only the key pressed fi rst is counted.
Note: It cannot move to other modes from this mode.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “SETTING THE TEST MODE” on page 12)
2. Press the [
>
] or [
.
] keys to select the “KEY COUNT”,
and press the [
N
] key.
3. The count value of the keys and switches operation is dis-
played.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
KEY:PLAY
00888
00888
<KEY COUNT>
LCD Display
The key name of
the pressed first
the pressed first
Count value increase conditions:
One of keys is pressed.
One of switches is slid.
Memory card is inserted.
Headphone or microphone is inserted.
Initial value:
Count number : 00000 (Maximum is 99999)
If the key is pressed in the state of 99999, it will return to
00000.
00000.
Releasing method:
Remove battery.
Remove battery.
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