Panasonic sl ct 350 eb service manual

Page 1

Service

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DIGITAL AUDIO

Specification
.Audio

Sampling frequency:
No. ol channels:

Headphone output level:

Frequency response:

.Pickup
Light source:
Wavelength:

.General

Power supply:
Doinpun

AC adaptor input;

Using AC adaptor;
Recharging;
Play time:

44.1 kHz
2 (left and right, stereo)

M3, RMS max. 6mW+6mW/
1652
(adjustable)

20 Hz to 20,000 Hz
(+05dBto-7dB

Semiconductor laser
780 nm

DC 4.5V

EBzA0220V-240V 50/60HZ
EG/EE:A0220V-230V 50/60Hz
GNzAC23OV-240V 50HZ

0.8W

3.0W

Panasonic

Comum
(S) ........

ORDER N0.AD050200508

Manual

Portable CD Player

SL-CT350EB
SL-CT350EE
SL-CT350EG
SL-CT350GN

.......... Silver Type

Using on a flat stable surface at 25°C, E0 is off, Hold is on, Anti-
skip is on P08 1.
Play times are in hours and approximate.

Baflenes
used

Play
thne

2 alkaline batteries (LR03)

26

2 alkaline batteries (LRB)

EU *

4 alkaline batteries
(2 LROS+2 LRfi)

86 *

Z nptinnal rechargeable batteries
(Europe: HHH-4AGE/ZB
Other areas: HHH-4AGT/ZB)

16

2 optional rechargeable
(Europe: HHR-aAGE/ZB

Other areas: HHR-dAGT/ZB) and
2 alkaline (LR6) batteries

76 *

* :Only EE and GN

Recharging time:

About 3.5 to 4.5 hours

- The play time maybe less depending on the operating conditions.

- Play time will be considerably reduced when playing CD-FtW.

Dimensions (WxHxD):

Mass:

136.7x21.5x136.7mm
1809 (with batteries)

1579 (without batteries)

© 2005 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a Violation of law.

Page 2

SL-CTQSOEE / SL-CTQSOEE I SL-CTSSOEG / SL-CT3SDGN

Operational temperature range: 0°C-40C Note on CD-R and CD-RW:

Rechargeable temperature range: 5°C-40"C This unit can play CD-DA format audio CD-R and CD-RW that have
Note: been finalized upon completion of recording. it may not be able to
S .1. t' b' h 'th 1. play some CD-R or CD-RW clue to the condition of the recording.
peCI ica ions are 5 jec O C ange WI ou no ice. *Finalizingisaprocess that enables CD-R/CD-RW players to play
M55 and dimensions are approximate. audio CD-Fi and CD-RW.

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

1 Precaution of Laser Diode

2 Accessories
3 Handling Precau ons for Traverse Deck

3.1. Handling the traverse deck (optical pickup) ..................... 4
3.2. Caution when replacing traverse deck ---------
3.3. Grounding for electrostatic breakdown prevention ............ 4
4 Operation Checks and Component Replacement Proceduress
4.1. Checking for the P.C.B. ass D --------------------------------------- 6
4.2. Replacement for the CD lid unit, retainer plate and open
spring ---------------------------------------------------------------------------- 8

4.3. Replacement for the LCD, button A, button B and multi

button SW unit .9

4.4. Replacement for the traverse motor 10
4.5. Replacement for the optical pick-up .............................. 10
4.6. Replacement for the rest switch .................................... 12

5 Checking the Operation Problems on the Traverse Deck
(Optical Pickup)
6 Automatic Adjustment Results Display Function (Self-check

Function) ------------------------------------------------------------------------------- 14
6.1. How to display automatic adjustment results ----------------- 14

1 Precaution of Laser Diode

CAUTION:

6.2. Display of automatic adjustment results (self-check
function)-

7 Display of Self-Diagnostic Function
3 TYPe Illustration of lCDs, Transistors and Diodes - 15
9 Schematic Diagram Notes .................................................... 16

10 SChematic Diagram ............ 17

11 Printed Circuit Board and Wiring Connection Diagram

12 Block Diagram ------------------------------------------------------------

13 Terminal Function of Ics ............................................ 25
13-1. |C101(AN22003A-NF): Servo Amplifier -------------------------- 25
13.2. |C301(C2BBFD000574): System Control / LCD Drive ---- 25
13.3. |0501(MN6627881SE): Servo Processor, Digital Signal

Processor, Digital Filter 8. D/A Convener ....................... 26
14 Replacement Parts List ......................................................... 27
15 Cabinet Parts Location ......................................................... 29

16 Traverse Parts Location

17 Packaging
17.1. SL-CT350EB
17.2. SL-CT350EE/EG/GN ---------------------------------------------------- 32

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

radiation exposure.
CAUTION:
This product utilizes a liser diode with the unit turned on,
Wave length: 780nm
Maximum output wadiation power from pickup: 100 pW/VDE

invisible laser radiation is emitted from the pickup lens.

Laserradiationfromthepickuplens is safety level, but be sure the followings:

1.Do not disassemble the optical pickup unit, since radiation from exposed laser diode is dangerous.