Panasonic SV-MP120VE User manual
Memorysize: 512 MB
Supportedsampling frequency:
/
MP3; 32 kHz, 44.1kHz, 48 kHz,
WMA; 8kHz to44.1kHz
Supportedbit-rates: MP38kbpsto320 kbps(128
kbpsisrecommend) WMA32
kbpsto192 kbps(96 kbpsis
recommend)
No. of channels: Stereo, 2channels(MUSIC, FM
RADIO) Mono, 1channel (IC
RECORDER)
Frequencyresponse: 20Hz to20,000Hz (+0dB, -6dB)
(MUSIC), 300 Hz to4,300 Hz (IC
RECORDER,HQ mode)
MicS/N: 30 dB (IC RECORDER,HQ mode)
RadioFrequencyrange(FM): 87.9MHz to107.9MHz (200kHz
steps),87.5MHz to108.0MHz
(50/100 kHz steps),
Output: 4.5mW+ 4.5mW(16 ,M3
jack)
Power supply: DC 1.5V (onealkaline
LR03,AAA battery)
Approximateplaytimes: 13 hours (MUSIC),
7hours (FM RADIO)
Approximaterecording times: 13 hours (IC RECORDER, HQ
mode)
7hours (FM RADIO)
Maximumdimensions(WxHxD): 53.2x61.1x17.5mm
Mass: 41.7gwithbattery/ 30.4g
without battery
-Specificationsaresubject to changewithoutnotice.
-Theplaytimes shown depend on operating conditions.
-Mass and dimensionsareapproximate.
-MB meansonemillion bytes. Useablecapacitymaybeless.
-Thisproduct iscompatiblewith thefollowing character code. The
displaymaynotappear correctlywith other character codes.
2005 Matsushita ElectricTAIWAN Industrial Co., Ltd. All rights
reserved. Unauthorized copying and distribution isaviolation of
law.
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1. Accessories
-Stereo earphones
(L0BAB0000193) ............................................................. 1pc.
-USBCable
(K1HA05AD0004)............. ................................................ 1pc.
-Neck Strap
(VFC4028) .....................................................................1pc.
-CD-ROMDriver
(RFET0002) .................................................................... 1pc.
2. Location of Controls
3. Operation Checks and Component Replacement /
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Procedures
1. Thissection describes procedures for checking the operation of
the major printed circuitboards and replacing the main
components. /
2. For reassemblyafter operation checks or replacement, reverse
the respective procedures special ressemblyprocedures are
described onlywhen required.
3. Select item from the following index when checks or replacement
are required.
Contents
1. Checking for the mainP.C.B.
2. Checking for the memoryP.C.B.
3. Checking for the LCD ass’y.
4. Checking for the prevent electrostaticdischarge.
3.1. Removal of the batterycover
3.2. Removal of the front cabinet
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7. Service Precautions
7.1. Install and Copythe software (DFU,firmware,font table) After
replacing the mainPCB and DSP IC(mainCPU),reinstall DFUand
firmware,and copyfont tableagain.
7.2. Please contact to the service organization of the belonging for
the acquisition of data and obtainthe software.
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8. Troubleshooting
-What to prepare
-APCthat has the exclusive application software (WindowsMedia
Player V9.0) installed. Besure to check for normal operation of the
PC. Ifother application software isinstalled inthe PC, be sure that
thissoftware does not affect the operation of the WindowsMedia
Player V9.0.
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-When auser’sproduct istaken infor service, be sure to obtainnot
onlythe player and USBreader/writer. Also, tryto obtainas much
information as possibleon the operational environmentofthe
user’sPC.
<PC’soperational environment>
Product name, model number, name of CPU, operation clock, RAM
capacity, HD capacity, names of installed software, use of USB
hub, and anyequipment connected with USBsimultaneously.
-Checkpoints before servicing
-Does the batteryhave enough capacity?
Beaware that manganese batteries do not have sufficient
capacitor; theiruse can resultinimproper operation.
-Precautions
-APCsometimes does not recognize the USBreader/writer
depending on its conditions (such as competing with the installed
software). Therefore, alwayskeep the PCingood condition so that
anyadaptor can be connected properly.
-There isapossibilitythat not onlythe hardware but also software
(PC’sapplication software) maybe the source of the problem.
Therefore, be sure to inspect all potential sources carefullyand
thoroughlybefore specifying anycauses.
Remarks:
-When the PCdoes not recognize the USBreader/writer as a
removabledisc even when the USBreader/writer isconnected to
the PC, thisisan indication of an abnormal USBreader/writer. To
confirm this, and to improve the accuracyof your service
diagnosis, however, itisrecommended that you repeat the check
procedure with anew, properlyfunctioning USBreader/writer.
-Ifthe PCdoes not operate normally, itisnot possibleto check the
problem accurately.
-Besure to keep the PCworking properlyaccording to its operating
requirements.
-WindowsMediaPlayer (V9.0) (recommended) Free download from:
http://www.microsoft.com/downloads/
9. Troubleshooting guide
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-Before repairing the unit, make the below check.
-Nooperation:
-The HOLDfunction ison.
-Replace the batteryifitisflat.
-Nosound or there isalot of noise:
-Ensure the earphone plug isinserted firmly.
-Wipe the plug clean with aclean cloth.
-Turn up the volume.
-Playdoesn’tresume from the track where I stopped play:
-Thisdoesn’twork if:
You download, record, or delete files, or change the battery.
The random playmode ison.
-Playdoesn’tstart from the first track:
-The random playmode maybe on.
-Playusuallyresumes from the track where you last stopped play.
Use skipto return to the first track.
-The unitstops working:
-Take the batteryout for about 5seconds, then reinsert it.
-RESET procedure
1.Slide the HOLDswitch to ON.
2.Turn the uniton.
3.Press [-MODE] 3times.
4.Press [REC/STOP].
All the memories inthe unit are deleted.
-The displayistoo dark or too light:
-Adjust the contrast.
-Playdoesn’tstart immediately:
-Depending on the amount of data inthe unit, itmaytake some time
for playto start after downloading /recording or changing the
battery.
10. Type Illustration of ICs, Transistors and Diodes
11. Block Diagram
12. Schematic Diagram Notes
Notes:
-Circuitvoltage and waveform described hereinshall be regarded
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as reference information when probing defect point, because it
maydiffer from an actual measuring value due to difference of
Measuring instrument and its measuring condition and product
itself.
Thisschematicdiagram maybe modified at anytime with the
development of new technology.
S1: PLAY / STOP switch
S2: FF switch
S3: REW switch
S4: Volume up switch(VOL+)
S5: Volume downswitch(VOL-)
S6: REC switch
S7: MODE switch
S8: HOLD switch(HOLD)
-The supplypart number isdescribed alone inthe replacement
parts list.
-Voltage from negative terminal of battery.
()...MP3 position, []...FM position.
Nomark...MP3 AND FM position.
-Voltage and signal line / :Positive voltage line /
:FM RFsignal line / :Audiosignal line / :Mp3
signal line / :RECsignal line /
-Important safetynotice:
Components identified bymark have special characteristics
important for safety.
Furthermore, special parts which have purposes of fire-retardant
(resistors), high-qualitysound (capacitors), low-noise (resistors),
etc. are used.
When replacing anyof components, be sure to use only
manufacturers specified parts showninthe parts list.
-Caution!
ICand LSI are sensitive to staticelectricity.
Secondarytroublecan be prevented bytaking care during repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
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17. Replacement Parts List
Notes:
-Important safetynotice:
Components identified bymark have special characteristics
important for safety.
Furthermore, special parts which have purposes of fire-retardant
(resistors), high-qualitysound (capacitors), low-noise (resistors),
etc. are used.
When replacing anyof components, be sure to use only
manufactures specified parts showninthe parts list.
1. (T) Indicates parts that are supplied TAMACO
2. The reference number SArepresent the grease tool usea for unit.
3. The marking (RTL) indicates that Retention Time isLimited for
thisitem. After the discontinuation of thisassemblyinproduction,
the item will continue to be availablefor aspecificperiod of time.
The retention period of availabilityisdependent on the type of
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