Panasonic SL-SX480P / SL-SX480PC Service Manual ▷ View online
l Audio (CD-DA)
Sampling frequency:
44.1 kHz
No. of channels:
2 (left and right, stereo)
Frequency response:
20 Hz to 20,000 Hz
( +0dB ~ -3.6dB)
Headphone output level:
RMS max. 8mW + 8mW / 16
Ω
(adjustable)
l Pickup
Light source:
Semiconductor laser
Wavelength:
795 nm
l MP3
Supported bit-rates
(Supports variable bit rates):
(Supports variable bit rates):
32 kbps to 320 kbps
(128 kbps is recommended)
Supported sampling frequency:
48 kHz / 44.1 kHz / 32 kHz
Maximum number of items:
(total no. of albums and tracks);
999
(total no. of albums);
500
Maximum album levels:
100
l Play Timel
2006
SL-SX480P
SL-SX480PC
SL-SX480PC
Colour
A............Blue Type
W...........White Type
A............Blue Type
W...........White Type
Using on a flat stable surface at 25 ° C (77 ° F), EQ is off, Hold is on,
Anti-skip is on POS 1 (CD-DA), recommended bit rate (MP3: 128
kbps), and the Digital Re-master is off (MP3). Play times are in hours
and approximate.
Anti-skip is on POS 1 (CD-DA), recommended bit rate (MP3: 128
kbps), and the Digital Re-master is off (MP3). Play times are in hours
and approximate.
Batteries used:
2 alkaline batteries (LR6);
MP3 disc....75h
CD-DA disc....34h
· The play time may be less depending on the operating conditions.
· Play time will be considerably reduced when playing CD-RW.
· Play time will be considerably reduced when playing CD-RW.
l General
Dimensions (WxHxD):
138.6mmx24.4mmx138.6mm
(5
14
/
32
” x
31
/
32
” x5
14
/
32
” )
Mass:
206g(7.3oz) (with batteries)
159g(5.6oz) (without batteries)
Operational temperature range:
0 ° C-40 ° C
(32 ° F-104 ° F)
Note:
Specifications are subject to change without notice.
Mass and dimensions are approximate.
Mass and dimensions are approximate.
Note on CD-R and CD-RW:
Portable CD Player
Specification
ORDER No.AD0603008CE
J1
(CD-DA/MP3 only)
For CD-DA format, use a music disc and finalize
For CD-DA format, use a music disc and finalize
*
it after recording.
The unit may not be able to play some discs due to the condition of
the recording.
the recording.
* A process performed after recording that enables CD-R / CD-RW
players to play audio CD-R and CD-RW.
players to play audio CD-R and CD-RW.
1 Precaution of Laser Diode
2
2 Accessories
2
3 Schematic Diagram Notes
3
4 Schematic Diagram
5
5 Replacement Parts List
7
CONTENTS
Page
Page
1 Precaution of Laser Diode
CAUTION:
This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the pickup lens when the unit is turned on:
1. Do not look directly into the pickup lens.
2. Do not use optical instruments to look at the pickup lens.
3. Do not adjust the preset variable resistor on the optical pickup.
4. Do not disassemble the optical pickup unit.
5. If the optical pickup is replaced, use the manufactures specified replacement pickup only.
6. Use of control or adjustments or performance of procedures other than those specified herin may result in hazardous
1. Do not look directly into the pickup lens.
2. Do not use optical instruments to look at the pickup lens.
3. Do not adjust the preset variable resistor on the optical pickup.
4. Do not disassemble the optical pickup unit.
5. If the optical pickup is replaced, use the manufactures specified replacement pickup only.
6. Use of control or adjustments or performance of procedures other than those specified herin may result in hazardous
radiation exposure.
2 Accessories
· Stereo headphones (For P area).........................1 pc.
(L0BAD0000181)
· Stereo earphones (For PC area).........................1 pc.
(L0BAB0000201)
2
SL-SX480P / SL-SX480PC
3 Schematic Diagram Notes
Note:
lS201:
Laser ON/OFF switch in “ON” position.
(It turns “ON” with CD Lid.)
(It turns “ON” with CD Lid.)
lS202:
Rest switch in “OFF” position.
(It turns “ON” when optical pickup
comes to innermost periphery.)
(It turns “ON” when optical pickup
comes to innermost periphery.)
lS310:
Hold (HOLD) switch in “OFF” position.
lS801:
Play/pause (
) switch.
lS802:
Stop/Turn off (
) switch.
lS803:
Skip/search/ Album skip (
)
switch.
lS804:
Program play/ Digital Re-master/ Anti-
skip mode selection (MEMO) switch.
skip mode selection (MEMO) switch.
lS805:
Volume control (VOL -) switch.
lS806:
Sound quality selection (EQ) switch.
lS807:
Skip/search/ Album skip (
)
switch.
lS808:
Play mode/ Album mode selection
(MODE) switch.
(MODE) switch.
lS809:
Volume control (VOL +) switch.
· Components identified by
mark have special
characteristics important for safety.
· When replacing any of components, be sure to use only
manufacture’s specified parts shown in the parts list.
· The supply part number is described alone in the
replacement parts.
· Signal line
·
·
: Positive voltage line.
·
: Playback signal line.
· The voltage value and waveforms are the reference
voltage of this measured by DC electronic voltmeter
(high impedance) and oscilloscope on the basis of GND
terminal (DC IN Jack). Accordingly, there may arise
some errors in the voltage valuesandwaveforms
depending upon the internal impedance of the tester or
measuring unit.
(high impedance) and oscilloscope on the basis of GND
terminal (DC IN Jack). Accordingly, there may arise
some errors in the voltage valuesandwaveforms
depending upon the internal impedance of the tester or
measuring unit.
Measurement conditions:
*( ).......CD playback mode (Test disc 1kHz, L+R, 0dB)
*No mark.......CD stop mode
Caution!!
· IC and LSI are sensitive to static electricity.
· Secondary trouble can be prevented by taking care
· Secondary trouble can be prevented by taking care
during repair.
· Cover the parts boxes made of plastics with aluminum
foil.
· Ground the soldering iron.
· Put a conductive mat on the work table.
· Do not touch the pins of IC or LSI with fingers directly.
· Put a conductive mat on the work table.
· Do not touch the pins of IC or LSI with fingers directly.
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SL-SX480P / SL-SX480PC
4
SL-SX480P / SL-SX480PC
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