Panasonic SLCT-582-VGC, SLCT-582-VGN, SLCT-582-VGS Service manual

Portable CD Player

SL-CT582VGC SL-CT582VGN SL-CT582VGS

Colour

(S)..........Silver Type

AD0503025CE

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

CONTENTS

Page Page

1 Accessories 2

2 Location of Controls

3 Precaution of Laser Diode

4 Handling Precautions for Traverse Deck

4.1. Handling of traverse deck (optical pick-up)

4.2. Caution when replacing traverse deck

4.3. Grounding for electrostatic breakdown prevention

5 Operation Checks and Component Replacement Procedures

5.1. Checking for the P.C.B.

5.2. Replacement for the CD lid unit

5.3. Replacement for the LCD, VOL/OPR etc. button,

MEMORY/EQ etc. button, Lid ornament and multi button

SW unit

5.4. Replacement for the retainer plate, open spring 1 and

open spring 2

5.5. Replacement for the traverse motor

5.6. Replacement for the optical pick-up

5.7. Replacement for the rest switch

6 Display of Self-Diagnostic Function

7 Checking the Operation Problems on the Traverse Deck

(Optical Pick-up)

7.1. Check the operations described below on the traverse

deck after replacing

8 Automatic Adjustment Results Display Function (Self-Check

Function)

8.1. How to display automatic adjustment results 13

8.2. Display of automatic adjustment results (Self-Check

Function)

9 Type Illustration of ICs, Transistor s and Diodes

10 Schematic Diagram Notes

10.1. Cautions in Repair exchange of the Diode (D1101, D1102)

11 Schematic Diagram

12 Printed Circuit Board and Wiring Connection Diagram

13 Block Diagram

14 Terminal Function of ICs

14.1. IC301(C2BBGF000593): System Control

14.2. IC501(MN6627962JB): Servo Amp, Servo Processor,

Digital Signal Processor, Digital Filter & D/A Converter

14.3. IC1301(C2FBEB000007): System Control/LCD Drive

15 Supply of Rechargeable Battery as Replacement Parts

16 Caution in use of Rechargeable Battery

17 Measurements and Adjustments

17.1. Tuner section

18 Replaceme nt Parts List

19 Cabinet Parts Location

20 Traverse Unit Parts Location

21 Packaging

1 Accessories

· AC adaptor for SL-CT582VGC

(N0JDCE000001)..........................................1 pc.

· AC adaptor for SL-CT582VGS

(N0JDCE000002)..........................................1 pc.

· AC adaptor for SL-CT582VGN

(RFEA446A-S)............................................... 1 pc.

· Stereo earphones

(L0BAB0000183)...........................................1 pc.

· W ired remote control

(N2QCBD000011)........................................1 pc.

· External battery case

(RFA2666-H).................................................1 pc.

· Rechargeable batteries (with case) for SL-CT582VGN only

(RFKFHHR4AGTB)......................................2 pcs.

· Power plug adaptor for SL-CT582VGC only

(K2DA42E00001)....................... .................1 pc.

2 Location of Controls

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

3 Precaution of Laser Diode

Caution:

This product utilizes a laser diode with the unit turned on, invisible laser radiation is emitted from the pick-up lens.

Wavelength: 780 nm

Maximum output radiation power from pick-up: 100 µW/VDE

Laser radiation from the pick-up lens is safety level, but be sure the followings:

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

2. Do not adjust the variable resistor on the pick-up unit. It was already adjusted.

3. Do not look at the focus lens using optical instruments.

4. Recommend not to look at pick-up lens for a long time.

4 Handling Precautions for Traverse Deck

The laser diode in the traverse deck (optical pick-up) may break down due to potential difference caused by static electricity of clothes or human body.

So, be careful of electrostatic breakdown during repair of the traverse deck (optical pick-up).

4.1. Handling of traverse deck (optical pick-up)

1. Do not subject the optical pick-up to static electricity as it is

extremely sensitive to electrical shock.

2. To protect the laser diode against electrostatic breakdown,

be sure that the short land of the flexible board (FFC board) should be short-circuit by solder before pulling out the FFC. Then inserting a short pin or similar object into the tip of the flexible board. (Refer to Fig. 4-1.)

3. Take care not to apply excessive stress to the flexible board

(FFC board).

4. Do not turn the variable resistor (laser power adjustment). It

has already been adjusted. (Refer to Fig. 4-1.)

4.2. Caution when replacing traverse deck

The new traverse deck short-circuits by the short pin, the foil (B) and short lands to protect the laser diode against electrostatic breakdown. Be sure to replace to new one following procedures.

1. Remove the short pin from the FFC, and then connect it to

the connector.

2. Cut the foil (B). (Refer to Fig. 4-1.) (Take care not to make

contact with cutting point each other.)

3. Unsolder the short lands. (Refer to Fig. 4-1.)

4.3. Grounding for electrostatic breakdown prevention

4.3.1. Human body grounding

Use the anti-static wrist strap to discharge the static electricity from your body. (Refer to Fig. 4-2.)

Fig. 4-1.

Fig. 4-2.

4.3.2. Work table grounding

Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pick-up) is placed, and ground the sheet. (Refer to Fig. 4-3.)

Fig. 4-3.

Caution:

The static electricity of your clothes will not be grounded through the wrist strap.

So take care not to let your clothes touch the traverse deck (optical pick-up).

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

5 Operation Checks and Component Replacement

Procedures

· This section describes procedures for checking the

operation of the major printed circuit boards and replacing the main components.

· For reassembly after operation checks or replacement,

reverse the respective procedures. Special reassembly procedures are described only when required.

5.1. Checking for the P.C.B.

5.1.1. Checking for the P.C.B. (A side)

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

5.1.2. Checking for the P.C.B. (B side)

· Follow the (Step 1) - (Step 7) of item 5.1.1.

· Check the P.C.B. (A side) as shown below.

· Check the P.C.B. (B side) as shown below.

5.2. Replacement for the CD lid unit

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

· Follow the (Step 1) - (Step 5) of item 5.1.1.

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

5.3. Replacement for the LCD, VOL/OPR etc. button, MEMORY/EQ etc. button, Lid ornament and multi button SW unit

· Follow the (Step 1) - (Step 5) of item 5.1.1.

· Follow the (Step 1) - (Step 4) of item 5.2.

5.4. Replacement for the retainer plate, open spring 1 and open spring 2

· Follow the (Step 1) - (Step 5) of item 5.1.1.

· Follow the (Step 1) - (Step 4) of item 5.2.

5.5. Replacement for the traverse motor

· Follow the (Step 1) - (Step 4) of item 5.1.1.

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

5.6. Replacement for the optical pick-up

· Follow the (Step 1) - (Step 4) of item 5.1.1.

· Follow the (Step 1) - (Step 3) of item 5.5.

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

5.7. Replacement for the rest switch

· Follow the (Step 1) - (Step 4) of item 5.1.1.

· Follow the (Step 1), (Step 2) of item 5.5.

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

6 Display of Self-Diagnostic

Function

This unit (SL-CT582V) has self-diagnostic function. It may display below-mentioned on the LCD of this unit.

· The substance of self-diagnostic display.

LCD display

(Press PLAY and STOP button. After 15 seconds, it is displayed for 2 seconds.)

In case of this display, it may be causing for abnormally movements of traverse deck, touching failure of REST detect switch and coming off or cutting off the flexible P.C.B.. It is necessary for confirmation or repair and replacement each parts.

SL-CT582VGC / SL-CT582VG N / SL-CT582 VGS

7 Checking the Operation Problems on the Traverse Deck

(Optical Pick-up)

Make sure to follow the procedures below to check the operation problems of the traverse deck (optical pick-up) before

replacing it.

Replace the traverse deck only after the problem is identified.

7.1. Check the operations described below on the traverse deck after replacing

7.1.1. Checking skip search

1. Play an ordinary musical program disc.

2. Press the skip button to check for normal skip search

operation (in both the forward and reverse directions).

7.1.2. Checking manual search

1. Play an ordinary musical program disc.

2. Press the manual search button to check for smooth

manual search operation at either low or high speed (in both the forward and reverse directions).

7.1.3. Checking playability

1. Play the 0.7 mm black dot and the 0.7 mm wedge on the playability test disc (SZZP1054C ) and verify that no sound skip or noise occurs.

2. Play the middle tracks of the uneven test disc (SZZP1056C) and verify that no sound skip or noise occurs.

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