DOWNLOAD Sony ICD-PX440 (serv.man2) Service Manual ↓ Size: 1.65 MB | Pages: 22 in PDF or view online for FREE

Model
ICD-PX440 (serv.man2)
Pages
22
Size
1.65 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icd-px440-sm2.pdf
Date

Sony ICD-PX440 (serv.man2) Service Manual ▷ View online

ICD-PX440
4
3. Confi rmation and initialize method
Procedure:
1.  Equip this unit with battery.
2.  Slide the [HOLD•POWER ON/OFF] switch in the direction of 
“POWER” until the window display appears.
3.  While pressing the [STOP/
x
] and [VOL 
−] keys, slide the 
[DPC (SPEED CTRL)] switch in the direction of “ON” or 
“OFF” (Either “ON” or “OFF” is OK).
VOL –
STOP / x
ON         OFF DPC (SPEED CTRL)
4.  While pressing the [STOP/
x
] and [VOL 
−] keys, slide the 
[DPC (SPEED CTRL)] switch in the direction opposite to that 
specifi ed in step 3.
5.  While pressing the [STOP/
x
] and [VOL 
−] keys, slide the 
[DPC (SPEED CTRL)] switch in the direction opposite to that 
specifi ed in step 4.
6.  The test mode menu (“SERVICE MENU”) is displayed, and 
enter the test mode. Release the [STOP/
x
] and [VOL 
−] keys.
 
(Displayed characters/values in the following fi  gure are ex-
ample)
<SERVICE MENU>
ICD-PX440 /E
1.00.00
Destination
Model name
Firmware version
LCD Display
7.  Press the [
>
] or [
.
] keys to select the “MENU INIT”, and 
press the [
N
] key.
8.  Initialization is performed.
Formatting...
<MENU INIT>
LCD Display
9.  “Success” is displayed, and this unit reboots.
Success
LCD Display
ICD-PX440
5
SECTION  2
DISASSEMBLY
• 
This set can be disassembled in the order shown below.
2-1.  DISASSEMBLY  FLOW
SET
2-2. ORNAMENT 
(MIC)
 (Page 
6)
2-3. CASE 
(FRONT) 
ASSY
 (Page 
7)
2-4 
LOUDSPEAKER (2.8 cm)
 (Page 
8)
2-6. LCD 
HOLDER
 (Page 
9)
2-7. MAIN 
BOARD
 (Page 
9)
2-10. USB ASSY (USB1)
 (Page 
11)
2-8.  ELECTRET CAP MICROPHONE 
 
(L/R-ch) (MIC1, MIC2)
 (Page 
10)
2-9. CHASSIS
 (Page 
11)
2-5. LCD 
BLOCK
 (Page 
8)
‡ JIG
  When disassembling the unit, use the following jig.
 Part No. 
Description
  9-913-402-33  Tool for Disassembling
ICD-PX440
6
Note:
 Follow the disassembly procedure in the numerical order given.
2-2. ORNAMENT 
(MIC)
9
 Insert a jig into the space opened between the case (front) and 
the ornament (MIC) and remove the ornament (MIC) straight in 
the direction of the arrow.
The case (rear) assy should 
be visible through this slit.
Only the mesh (MIC) should 
be visible through this slit.
The microphone electret cap 
should be visible through this slit.
OK
NG
Note 5: When installing the ornament (MIC), confirm that the case (rear) 
assy and mesh (MIC) are visible through the slits.
8 Create an open space between 
the case (front) and the 
ornament (MIC) by pushing the 
case (rear) in the direction of 
the arrow.
six claws
two claws
qa 
ornament 
(MIC)
lid (slot)
speaker wires
USB connector
case (front)
case (rear)
– Rear top view –
– Rear top view –
–Right side –
–Left side –
– Rear bottom view –
2 screw
1 Open the battery case lid.
4 Close the battery case lid.
3 screw
 (1.4)
5 Open the lid (slot).
 Note 
1: Be careful when removing the lid (slot), 
as forcefully pulling to remove it from the 
case (rear) may damage the retainer claw.
6 With the lid (slot) held open, press your fingers 
against the bases of the case (front) and the 
USB connector, and open them slightly.
 Note 
2: 
When opening the case (front), exercise 
great care. If opened with too much force, 
the speaker wires may snap. 
 Note 
3: Using a jig instead of your fingers is also 
acceptable.
case (rear)
Note 4: Check that the two claws on 
the ornament (MIC) have come 
out of the case (rear) block.
Note 6: To see if the claws on the removed 
ornament (MIC) have broken or 
otherwise been damaged, check that 
the claws do not turn white when 
pressure is applied.
Not broken
Not white
claw
claw
two claws
ornament (MIC)
case 
(front)
ornament (MIC)
case 
(front)
ICD-PX440
7
2-3.  CASE (FRONT)  ASSY
three claws
2 Remove the solder.
 [black]
2 Remove the solder.
 [red]
3 case (front) assy
1 Remove two speaker 
wires from the claw.
4 Attach the case (front) assy 
starting with the right side.
Attach the case (front) 
assy to the left side.
3 Open the lid (slot).
2 Hook two wires to 
the claw.
1 Solder the wire.
 [black]
1 Solder the wire.
 [red]
6 Align the position of S401 and 
knob (power).
S401
S941
– Front top view –
– Front top view –
‡$VVHPEOLQJSURGXFHRIWKHFDVHIURQWDVV\
three claws
knob
(power)
S401
Note: Be careful not to damage the switches 
when attaching the case (front) assy.
6 Align the position of S941 and 
knob (power).
knob
(power)
S941
speaker wires
MAIN board
[red]
[black]
claw
‡:LUHVHWWLQJ
Page of 22
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Sony ICD-PX440 (serv.man2) Service Manual ▷ Download

  • DOWNLOAD Sony ICD-PX440 (serv.man2) Service Manual ↓ Size: 1.65 MB | Pages: 22 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony ICD-PX440 (serv.man2) in PDF for free, which will help you to disassemble, recover, fix and repair Sony ICD-PX440 (serv.man2) Audio. Information contained in Sony ICD-PX440 (serv.man2) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.