ICD-PX440 (serv.man2) - Sony Audio Service Manual (repair manual). Page 3

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ICD-PX440
3
SECTION  1
SERVICING  NOTES
NOTE  OF  REPLACING  THE  BOARD
When boards installed by this unit are defective, individual electri-
cal parts that the mount is done cannot be replaced. Replace the 
mounted board, or replace the whole part containing the complete 
mounted board.
ABOUT  THE  DESTINATION  SETTING  WHEN  REPLAC-
ING  THE  MAIN  BOARD
When the MAIN board of this unit is replaced, perform processing 
according to the following procedure.
Precaution
The contents which are not opened to customers are included 
in the following procedure. After you are cautious of handling of 
information, execute work under the suffi cient administration.
1.  About the preparing of tools
Confi rm the method of obtaining the tools to the service headquar-
ters.
2. Setting 
method
Note: The destination setting is impossible when battery voltage is not 
enough.
 
  Do work using the battery with suffi cient battery level.
Procedure:
1.  Equip this unit with battery.
2.  Connect this unit to the PC.
To USB port of PC
IC recorder
Slide the USB slide lever
3.  On PC, unzip the model setting fi le to get folder on PC.
4.  On PC, open the unzipped folder, and select the folder corre-
sponding to the model name and destination of this unit.
01.ICD-PX440_U
02.ICD-PX440_CE7
03.ICD-PX440_LA
04.ICD-PX440_CA
05.ICD-PX440_J
07.ICD-PX440_CN
08.ICD-PX440_KR3
09.ICD-PX440_E
5.  On PC, copy the “DEVINFO.UPG” fi le included in the folder 
selected at step 4 to root folder of this unit.
6.  Remove this unit from the PC.
From USB port of PC
IC recorder
7.  “Updating” is displayed on the screen of this unit, and this unit 
is rebooted automatically.
Updating...
LCD Display
8.  The destination setting is completed.
1. 
SERVICING  NOTES 
 .............................................  
3
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   5
2-2. Ornament 
(MIC) 
.............................................................   6
2-3. Case 
(Front) 
Assy 
............................................................   7
2-4.  Loudspeaker (2.8 cm) .....................................................   8
2-5. LCD 
Block 
......................................................................   8
2-6. LCD 
Holder 
....................................................................   9
2-7. MAIN 
Board 
...................................................................   9
2-8.  Electret Cap Microphone (L/R-ch) (MIC1, MIC2) ........   10
2-9. Chassis 
............................................................................  11
2-10. USB Assy (USB1) ..........................................................   11
3. 
TEST  MODE 
 ............................................................   12
4. 
EXPLODED  VIEWS
4-1.  Case Front Section ..........................................................   18
4-2.  MAIN Board Section ......................................................   19
4-3.  Case (Rear) Section ........................................................   20
5. ACCESSORIES 
 .......................................................   21
TABLE  OF  CONTENTS
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