Sony NWZ-E435F / NWZ-E436F / NWZ-E436FK / NWZ-E438F Service Manual ▷ View online
NWZ-E435F/E436F/E436FK/E438F
13
4-2-1. Output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output-
ted.
“1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “OUTPUT”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
OUTPUT
1kHz 0dBs L/Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-2. S/N check
“Infinity Zero VOLUME: 30” audio signal is outputted.
“Infinity Zero VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SN”.
4. Press the [
u
] key, “Infinity Zero VOLUME: 30” audio signal
is outputted.
liquid crystal display
SN
Infi nity Zero
HPOUT [ VOL 30 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-3. Frequency characteristic 1 check
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output-
ted.
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “F1”.
4. Press the [
u
] key, “20 Hz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
F1
20Hz 0dBs Lch/Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-4. Frequency characteristic 2 check
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output-
ted.
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “F2”.
4. Press the [
u
] key, “20 Hz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
F2
20kHz 0dBs Lch/Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
NWZ-E435F/E436F/E436FK/E438F
14
4-2-5. CH separation (L-ch) check
“1 kHz 0 dBs L-ch VOLUME: 25” audio signal is outputted.
“1 kHz 0 dBs L-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SEPLR”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch VOLUME: 25” audio
signal is outputted.
liquid crystal display
SEPLR
1kHz 0dBs Lch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-6. S/N check
“1 kHz 0 dBs R-ch VOLUME: 25” audio signal is outputted.
“1 kHz 0 dBs R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SEPRL”.
4. Press the [
u
] key, “1 kHz 0 dBs R-ch VOLUME: 25” audio
signal is outputted.
liquid crystal display
SEPRL
1kHz 0dBs Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-7. Maximum output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” (Headphone output when
AVLS operates: “1 kHz 0 dBs L-ch/R-ch VOLUME: 13”) audio
signal is outputted.
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” (Headphone output when
AVLS operates: “1 kHz 0 dBs L-ch/R-ch VOLUME: 13”) audio
signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “MAXOUT”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”
(Headphone output when AVLS operates: “1 kHz 0 dBs L-ch/
R-ch VOLUME: 13”) audio signal is outputted.
R-ch VOLUME: 13”) audio signal is outputted.
liquid crystal display
MAXOUT
1kHz 0dBs L/Rch
AVLS OFF
HPOUT [ VOL 30]
START
5. In this state, each time the [OPTION] key is pressed, AVLS
on.off switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
4-2-8. Normalizer check
“1 kHz − 24 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
“1 kHz − 24 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “NMLZR”.
4. Press the [
u
] key, “1 kHz − 24 dBs L-ch/R-ch VOLUME:
30” audio signal is outputted.
liquid crystal display
NMLZR
1kHz–24dBs Lch/Rch
HPOUT [ VOL 30]
START
5. Press the [BACK] key, return to minor item selection screen.
NWZ-E435F/E436F/E436FK/E438F
15
4-2-9. Sound pressure regulation level check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SPCHK”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”
audio signal is outputted.
liquid crystal display
SPCHK
1kHz 0dBs Lch/Rch
HPOUT [ VOL 30]
START
5. Press the [BACK] key, return to minor item selection screen.
4-3. Video
liquid crystal display
MPTAPP MENU
POWER LCD
AUDIO
VIDEO
OTHER
CLESTE
DAC
FM
SHUTDOWN
EXITTEST
VIDEO
OTHER
CLESTE
DAC
FM
SHUTDOWN
EXITTEST
4-3-1. LCD display check
Liquid crystal display is checked.
Liquid crystal display is checked.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “VIDEO”, and press the [
B
]
key to select the “LCD”.
3. Press the [
u
] key, all black is displayed on the liquid crystal
display.
4. In this state, each time the [OPTION] key is pressed, the screen
display changes in the following order.
All black (default)
→ All red → All green → All blue → All
white
→ Color bar → Maximum drawing size confi rmation
→ diagonal gradation (red) → diagonal gradation (green) →
diagonal gradation (blue)
diagonal gradation (blue)
→ diagonal gradation (white)
Maximum drawing size confi rmation:
All blue (All sides are red) is displayed. Whether red in all
sides is seen is confi rmed.
sides is seen is confi rmed.
5. In this state, each time the [VOL –] key is pressed, LCD back
light brightness min/max/middle switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
4-4. Other
liquid crystal display
MPTAPP MENU
POWER
CLOCK
AUDIO
KEYNUM
VIDEO
KEY
OTHER
FORMAT
CLESTE
DEST
DAC
SPSET
FM
FWVER
SHUTDOWN NCAPCHK
EXITTEST
EXITTEST
4-4-1. Clock check
The movement of an internal clock is confirmed.
The movement of an internal clock is confirmed.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “OTHER”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “CLOCK”.
4. Press the [
u
] key, date and time are displayed.
liquid crystal display
CLOCK
XXXX/XX/XX
##:##:##
START
XXXX/XX/XX
:
Date
##:##:##
:
Time
“START” changes into “OK” if the movement of an internal clock
is confirmed.
5. Press the [BACK] key, return to minor item selection screen.
is confirmed.
5. Press the [BACK] key, return to minor item selection screen.
4-4-2. Frequency check that presses key
The frequency to which the key is pressed, insert/pull out frequen-
cy of cradle and insert/pull out frequency of the headphone are
displayed.
The frequency to which the key is pressed, insert/pull out frequen-
cy of cradle and insert/pull out frequency of the headphone are
displayed.
Note: Not used for the servicing.
NWZ-E435F/E436F/E436FK/E438F
16
4-4-3. Key check
The operation of the key is confirmed.
The operation of the key is confirmed.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “OTHER”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “KEY”.
4. Press the [
u
] key, all keys are displayed.
liquid crystal display
PLAY
OPTION
BACK
FF
RW
UP
DOWN
VOL+
VOL–
VOL–
HOLD
5. The character corresponding to the key is selected every time
the ley is pressed. “START” changes into “OK” if all keys are
pressed.
pressed.
6. Slide the [HOLD] key from ON to OFF, return to minor item
selection screen.
4-4-4. Format
The user’s area is formatted, and ICV for the video and ICV for
audio are initialized.
The user’s area is formatted, and ICV for the video and ICV for
audio are initialized.
Note: Not used for the servicing.
Format the set from “Settings” 0 “Common settings” 0 “Format”
when it home menu in usually operates when the set should format
it.
it.
4-4-5. Destination setting
The destination setting, language information, and sound pressure
regulation information are written in the NAND flash memory.
The destination setting, language information, and sound pressure
regulation information are written in the NAND flash memory.
Note: Not used for the servicing.
4-4-6. Sound pressure regulation setting
ON/OFF of sound pressure regulation is confirmed.
ON/OFF of sound pressure regulation is confirmed.
Note: Not used for the servicing.
4-4-7. Firmware version check
The firmware version is displayed.
The firmware version is displayed.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “OTHER”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “FWVER”.
4. Press the [
u
] key, the firmware version is displayed.
liquid crystal display
FWVER
FWVER
X.XX.XX
MODEL NAME
NWZ–####
SERIAL NO
@@@@@@@
X.XX.XX :
Firmware
version
####
: Model name
@@@@@@@ : Serial No.
5. Press the [BACK] key, return to minor item selection screen.
4-4-8. NAND capacity check
Capacity of NAND flash memory, present bud block maximum
bud block, and vender ID are displayed.
Capacity of NAND flash memory, present bud block maximum
bud block, and vender ID are displayed.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “OTHER”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “NCAPCHK”.
4. Press the [
u
] key, capacity of NAND flash memory, present
bud block maximum bud block, and vender ID are displayed.
liquid crystal display
NCAPCHK
NAND TOTAL SIZE
X GB
BAD BLOCK
@@@@
MAX BAD BLOCK
####
VENDER
$$$$
X
: Capacity of NAND fl ash memory
2/4/8 (2 GB/4 GB/8 GB)
@@@@
: Number of present bud block
(It makes an error the acquisition of the
Number of bud blocks at “–1”)
####
: Number of maximum bud block
(It makes an error the acquisition of the
vender IDat at “–1”)
$$$$
: Vender ID od NAND fl ash memory
0x98/0xec
(TOSHIBA/SAMSUNG)
(It makes an error the acquisition of the
vender ID at “–1”)
5. Press the [BACK] key, return to minor item selection screen.
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