WA-MP50HS (serv.man3) - Sharp Audio Service Manual (repair manual)

Model: WA-MP50HS (serv.man3)
Pages: 30
Size: 1.64 MB
Type: PDF
Document: Service Manual
Brand: Sharp
Device: Audio / Portable
File: wa-mp50hs-sm3.pdf
Date: 2018-11-20

Next: Sharp WA-MP55HS User Guide / Operation Manual

Read Sharp WA-MP50HS (serv.man3) Service Manual online

WA-MP50H/WA-MP55H
 
SERVICE MANUAL
MIC
POWER
NAVI
No. S7549WAMP50H/
CONTENTS
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................. 1-1
[2]  Names of parts ............................................... 1-1
CHAPTER 2. ADJUSTMENTS
[1] Firmware 
update ............................................ 2-1
CHAPTER 3. MECHANISM BLOCKS
[1] Caution 
on 
disassembly ................................. 3-1
CHAPTER 4. CIRCUIT DESCRIPTION
[1] Voltage ........................................................... 4-1
CHAPTER 5. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Schematic 
diagram ........................................5-1
[2]  Wiring side of PWB........................................5-5
CHAPTER 6. OTHER
[1]  Function table of IC .......................................6-1
Parts Guide
WA-MP50H(S)/(BL)
MODEL
PORTABLE DIGITAL AUDIO PLAYER
WA-MP55H(S)/(BL)
MODEL
PORTABLE DIGITAL AUDIO PLAYER

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CHAPTER 1. 
GENERAL DESCRIPTION
[1] Specifications
[2] Names of parts
Power source:
DC 1.5 V: "AAA" size alkaline bat-
tery (LR03 or similar) x 1
DC 5 V: USB bus power
Dimensions:
Width: 54 mm (2-2/16")
Height: 56 mm (2-2/16")
Depth: 14 mm (0-9/16")
Weight:
41 g (1.5 oz.) without battery
Sockets:
Earphones (impedance: 32 ohms)
USB port
Line-input socket (150 mV)
Frequency
response:
20 - 20,000 Hz
Output power:
8 mW + 8 mW (earphones: 32 ohms)
(maximum output level)
Battery life:
Continuous recording:
(alkaline battery)
MIC: Approx. 8 hours
LINE-IN: Approx. 3 hours
FM: Approx. 4 hours
Continuous play: Approx. 15 hours

Frequency range: FM: 87.5 - 108 MHz
Storage media:
512 MB Flash Memory
(WA-MP50H)
1 GB Flash Memory (WA-MP55H)
Digital Rights
Management:
Windows Media DRM 9
Playback format:
MP3 (MPEG-1/2 Audio Layer 3),
bit rate: 8 - 320 kbps
WMA (Windows Media Audio),
bit rate: 5 - 320 kbps
MP3 (bit rate: 96 - 224 kbps,
sampling frequency: 32 - 48 kHz)
PCM (sampling frequency: 8 - 32 kHz)
PC interface:
Compatible with USB 2.0 and USB
1.1
System require-
ments:
Pentium 133 MHz or higher
CD-ROM drive
10 MB free hard disk space
Microsoft
Windows
98 Second
Edition/Millennium Edition/2000
Professional/XP Professional/XP
Home Edition standard installation
1. Line Input Socket
2. Hold Switch
3. Microphone
4. Play Mode/Time/Information Indicator
5. Battery Indicator
6. Character/Information Indicator
7. Play/Pause/Stop/Power Button
8. Menu Button
9. Neck Strap Hole
10. Earphones Socket
11. USB Port
12. USB Cap
13. Battery Cover
14. USB Port Lever
Attaching the neck strap
MIC
POWER
NAVI
USB
012-001-00:03
File name1
Artist name1
LINE IN
HOLD
OPEN
1
2
3
4
5
10
9
11
12
6
14
13
7
8
The display varies depending on the

Note:
To protect the USB port, cover it with the USB
cap when not in use.
US
B
Push
Push
Pull

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CHAPTER 2. 
ADJUSTMENTS
[1] Firmware update
1. Installing the update tool
If you use a PC running Windows Millennium Edition, Windows 2000
Professional, Windows XP Professional or Windows XP Home Edition,
install the upgrade tool as follows.
The installation is not necessary for Windows 98 Second Edition. (The
upgrade tool is installed already.)
1. Insert the supplied CD-ROM into your CD-ROM drive.
2. Open the "wa-mp100_50" folder on the CD-ROM and double-click
"setup".
3. Click the "Next" button.
The "License Agreement" screen appears.
4. Click the "Yes" button.
The "Choose Destination Location" screen appears.
5. Click the "Next" button.
The "Select Program Folder" screen appears.
6. Click the "Next" button.
When the installation is completed, the "InstallShield Wizard Com-
plete" screen appears.
7. Click the "Finish" button.
2. Updating the firmware
1. Visit our web site at http://sharp-world.com/worldwide/index. html
and download a firmware update file.
2. Decompress the downloaded file.
3. Replace the file in "C:\Program Files\SHARP\WAMP100_50" with
the decompressed file.
4. Connect the unit to a PC with the USB cable.
5. Start the update tool.
From the "Start" menu, click "All Programs", "WAMP100_50 Audio
player", and then "Firmware Download".
6. Click the "Start" button.
Check the box of "Format Data Area". All the data will be deleted.
Move important data to a PC before updating the firmware.
Update starts.
3. Recover Mode:
[Note]:
When some specific error occurs in FLASH memory internal, the nor-
mal operation of update firmaware will not effect, please use recover
mode to repair the problem.
[Note]:
This operation will erase all the data in the FLASH 
1. Visit our web site at 
http://sharp-world.com/worldwide/index. html
and download a firmware update file.
2. Decompress the downloaded file.
3. eplace the file in "C:\Program Files\SHARP\WAMP100_50" with
the decompressed file.
4. Remove the battery from the main set.
5. Press and hold "POWER" key.
6. Connect the unit to a PC with the USB cable.(keep holding
"POWER" key)
7. Start the update tool. From the "Start" menu, click "All Programs",
"WAMP100_50 Audio player", and then "Firmware Download".
8. Wait some time(1-30 seconds) after a indicator with blue color
appears and than release "POWER" key.
9. Keep wait some time(1-30 seconds), after the update window pop
up.
10.Check the box of "Format Data Area" and click the "Start" button.
Recover mode starts.
USB
MIC
POWER
NAVI
OPEN
PC
To the USB port
USB cable
Slide

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CHAPTER 3. 
MECHANISM BLOCKS
[1] Caution on disassembly
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:
1. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange
the leads where they were before disassembling.
1
Bottom Panel
1.
Screw
....................... (A1) x8
2
Bottom Cabinet
1.
Screw
....................... (B1) x4
3
Main PWB
1.
Screw
....................... (C1) x2
1.
Soldering
....................... (C2) x4
STEP
REMOVAL
PROCEDURE
(A1)x4
M1.4x2.5mm
(A1)x4
M1.4x2.5mm
Top Panel
Bottom Panel
(B1)x4
M1.4x4mm
Bottom Cabinet
(C1)x2
M1.4x4mm
(C2)x4
Main PWB
Top Panel

Display

Download Sharp WA-MP50HS (serv.man3) Service Manual (Repair Manual)

Here you can read online and download Sharp WA-MP50HS (serv.man3) Service Manual in PDF. WA-MP50HS (serv.man3) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp WA-MP50HS (serv.man3) Portable. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.

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