Panasonic SL-CT720 - Manual

Panasonic SL-CT720

A troubleshooting guide for the Panasonic SL-CT720 portable CD player covers essential operational areas like audio playback issues, battery management, and device compatibility with common formats. The manual also addresses safety protocols–such as handling batteries and preventing overheating–and includes compliance details relevant to U.S. markets. While it highlights basic connectivity (e.g., car audio integration) and file-formatting requirements, its primary focus remains on resolving functional problems through systematic diagnostics rather than detailed setup instructions.

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Table of Contents:

  • Page 1 – Troubleshooting and Product Identification
  • Page 2 – Safety Instructions and Compliance
  • Page 3 – Limited Warranty and Service Information
  • Page 4 – Technical Specifications and File Handling
  • Page 5 – Power Supply and Device Controls
  • Page 6 – Remote Control Functions
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Page 1

Cannot change the
Digital Re-master
mode, anti-skip mode.

Digital Re-master
does not work.

Cannot skip albums.

Cannot hear the remote
control’s operation tone.

The remote control
does not work properly.

Cannot charge.

The AC adaptor becomes
warm during charging.

The batteries are taking
a long time to charge.

Play time is short
after charging.

The battery
indicator fails to
appear or is
incorrect.

The unit stops
working.

Power cuts off.

No play.

No sound or there
is a lot of noise.

Play doesn’t
resume from the
last point stopped.

Play doesn’t start
from the first track.

Cannot search
through tracks.

Cannot specify point A or B.

1

The HOLD function is on. Cancel HOLD (

page 5).

The batteries may be depleted (

page 5).

The disc isn’t correctly set.

The disc is scratched or dirty. (Tracks may be skipped
particularly with MP3 discs.)

There is moisture on the lens. Wait for about an hour and then try again.

The lens is dirty: clean it with a blower (recommended
product:

SZZP1038C

). If the lens gets marked with

fingerprints, gently wipe them off with a cotton swab.

The unit may not read a track properly if shaken
strongly during disc reading.

If there is no data between sessions on a multi-session
disc, play may not be possible.

If there is a large amount of JPEG data etc. within a MP3 file,
sound may be muted and play may not be possible.

If the disc contains data with different formats, sound
may be muted and play may not be possible.

If a CD-ROM format disc contains MP3 and other files,
only the MP3 files will be playable.

Ensure the plugs are inserted firmly.

Wipe the plugs with a clean cloth.

The disc is scratched or dirty.

The sound may be interrupted or there may be noise
when playing MP3 if the recording quality is poor.

The elapsed play time disappears and sound is
interrupted if bumps continue repeatedly.

Separate the unit from mobile telephones.

This doesn’t work during random play.

It may not work correctly under some conditions.

Random play modes may be on (

page 6).

Play resumes from where last stopped (

page 5, Play).

(If the lid is opened while the unit is turned off, the resume
function may not be cancelled.)

You cannot search through a disc with MP3 files.

You may not be able to specify point A or B at the end of a disc.

Model No.

SL-CT720

Dear Customer

Thank you for purchasing this
product.
Before connecting, operating
or adjusting this product,
please read the instructions
completely. Please keep this
manual for future reference.

P

PC

p

Operating Instructions

Portable CD Player

Troubleshooting guide

Before requesting service, make the following checks. If you are in doubt about some of the check points, or if the solutions indicated in the chart do not solve the
problem, refer to the limited warranty for each area on page 3.

If [

:

] or [

9

] is pressed before [

$

MEMO/

%

DISP]

you cannot change the mode.

Depending on the type of MP3 disc recording, the effect
may not appear.

You cannot skip from the last to first album, or vice versa, during play.

The operation tone may be off (

page 6).

Remove the plug and reinsert it as fully as possible.

Use only the included remote control to operate the unit.

You aren’t using the special rechargeable batteries (

page 5).

You must insert two batteries before you can charge.

The unit must be off before you can charge.

This is normal.

The batteries may take as long as 6 hours to recharge
under some conditions.

This may occur the first time you charge the batteries
or if you haven’t used them for a long time. Play time
should be restored after a few charges.

The batteries can go flat if you leave the AC adaptor
connected after charging is complete.

If play is extremely short even after fully charging the batteries,
the batteries may have exceeded their life. (Rechargeable batteries
can be charged approximately 300 times.)Please purchase new
nickel-metal hydride rechargeable batteries (HHF-AZ01).

The indicator does not appear when the AC adaptor is connected.

The indicator may not appear correctly when using the
rechargeable and dry cell batteries at the same time and
under certain conditions.

Disconnect then reconnect all power sources (batteries
and AC adaptor).

If you connect or disconnect the AC adaptor, the power
cuts off even if rechargeable batteries are inserted.

RQT7719-P
F1204TR0

Panasonic Puerto Rico, Inc.

Ave. 65 de Infantería, Km. 9.5 San Gabriel Industrial Park, Carolina,
Puerto Rico 00985

Panasonic Canada Inc.

5770 Ambler Drive, Mississauga, Ontario L4W 2T3

www.panasonic.ca

C

2004 Matsushita Electric Industrial Co., Ltd.

Printed in Japan

Panasonic Consumer Electronics Company,
Division of Panasonic Corporation of North America

One Panasonic Way Secaucus, New Jersey 07094

http://www.panasonic.com

This manual was printed

with soy based ink.

DATE OF PURCHASE
DEALER NAME
DEALER ADDRESS

TELEPHONE NUMBER

User memo:

The model number and serial number of this product can be found
on either the back or the bottom of the unit.
Please note them in the space provided below and keep for future
reference.

MODEL NUMBER

SL-CT720

SERIAL NUMBER

RQT7719-P.qxd    04.12.9  3:01  PM    ページ 1

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About this manual

Brand
Panasonic
Model
SL-CT720
Document type
Manual
Language(s)
English
Pages
6
File size
328.8 KB
Format
PDF

Summary

Page 1 - Troubleshooting and Product Identification

Guide for resolving playback issues, charging problems, and playback errors, along with locating model and serial numbers, and recording purchase details.

Page 2 - Safety Instructions and Compliance

Safety warnings regarding battery use, volume levels, laser operation, U.S.-specific compliance information, warranty terms, and service contact details.

Page 3 - Limited Warranty and Service Information

Details concerning the limited warranty periods for parts and labor, exclusions, and customer service/repair center contacts in specified regions.

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