Panasonic SL-SV590EG Manuale utente

rights reserved. Unauthorized copying and distribu-

tion is a violation of law.

ORDER NO. AD0604011CE

Portable CD Player

SL-SV590EB

SL-SV590EG

SL-SV590GC

SL-SV590GN

SL-SV590GT

Colour

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

TABLE OF CONTENTS PAGE PAGE

1 Safety Precaution-------------------------------------------------3

1.1. Precaution of Laser Diode -------------------------------3

1.2. Handling Precautions for Traverse Deck-------------4

2 Service Navigation------------------------------------------------5

2.1. General Description About Lead Free Solder

(PbF) ----------------------------------------------------------5

3 Specifications------------------------------------------------------6

4 Location of Controls and Components--------------------7

4.1. Accessories--------------------------------------------------7

4.2. Location of Controls ---------------------------------------7

5 Service Mode-------------------------------------------------------7

5.1. Display of Self-Diagnostic Function -------------------7

6 Troubleshooting Guide------------------------------------------8

6.1. Checking the Operation Problems on the

Traverse Deck (Optical Pick-up) -----------------------8

7 Disassembly and Assembly Instructions-----------------9

7.1. Checking for the PCB-------------------------------------9

7.2. Replacement for the traverse motor----------------- 11

7.3. Replacement for the optical pick-up----------------- 11

7.4. Replacement for the rest switch----------------------13

8 Measurements and Adjustments --------------------------14

8.1. Automatic Adjustment Results Display

Function (Self-Check Function) ----------------------14

1 Safety Precaution

1.1. Precaution of Laser Diode

•For SL-SV590EB/EG

•For SL-SV590GC/GN/GT

Caution:

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

Wavelength: 795 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.

1.2. 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).

1.2.1. 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 break-

down, be sure that the short land of the flexible board

(FFC board) should be short-circuit by solder before pull-

ing out the FFC. Then inserting a short pin or similar

object into the tip of the flexible board.

(Refer to Fig. TR1)

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. TR1)

Fig. TR1

1.2.2. 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 electro-

static breakdown. Be sure to replace to new one following pro-

cedures.

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

to the connector.

2. Cut the foil (B). (Refer to Fig. TR1) (Take care not to

make contact with cutting point each other.)

3. Unsolder the short lands. (Refer to Fig. TR1)

1.2.3. Ground for electrostatic breakdown

prevebtion

1.2.3.1. Human body grounding

Use the anti-static wrist strap to discharge the static electricity

from your body. (Refer to Fig. TR2)

Fig. TR2

1.2.3.2. 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. TR3)

Fig. TR3

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).

2 Service Navigation

2.1. General Description About Lead Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this

equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin

(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30°C more than that of the normal

solder.

Distinction of PCB Lead Free Solder being used

Service caution for repair work using Lead Free Solder (PbF)

• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.

(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

• To put lead free solder, it should be well molten and mixed with the original lead free solder.

• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the

lead free solder.

• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30°C .

Recommended Lead Free Solder (Service Parts Route.)

• The following 3 types of lead free solder are available through the service parts route.

RFKZ03D01K-----------(0.3mm 100g Reel)

RFKZ06D01K-----------(0.6mm 100g Reel)

RFKZ10D01K-----------(1.0mm 100g Reel)

Note

* Ingredient: tin (Sn) 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

3 Specifications

4 Location of Controls and Components

4.1. Accessories

• AC adaptor

For EB (N0JCCE000004)..............................1 pc.

For EG (RFEA418E-2S)................................1 pc.

For GC (RFEA447Z-S)..................................1 pc.

For GT (RFEA439G-U).................................1 pc.

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

• Stereo earphones

(L0BAB0000182)...........................................1 pc.

• Power plug adaptor (Only GC)

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

4.2. Location of Controls

5 Service Mode

5.1. Display of Self-Diagnostic Function

This unit (SL-SV590) 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 PCB. It is necessary for confirmation or repair and replacement each parts.

Open

Play/Pause

VOL

HOLD

Stop/Turn off

Skip/Search Volume control

Headphone jack

Hold

Slider

Earphones

Battery lid Lens

Memory/Antiskip

Equalizer

Mode

Radio

FM MONO/ST

CITY/NOR

LCD display

6 Troubleshooting Guide

6.1. 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.

6.1.1. Check the operations described below on the traverse deck after

replacing

6.1.1.1. 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).

6.1.1.2. 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).

6.1.1.3. 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.

7 Disassembly and Assembly Instructions

•This section describes procedures for checking the

operation of the major printed circuit boards and replac-

ing the main components.

•For reassembly after operation checks or replacement,

reverse the respective procedures. Special reassembly

procedures are described only when required.

7.1. Checking for the PCB

7.1.1. Checking for the PCB (A side)

•Check the PCB (A side) as shown below.

7.1.2. Checking for the PCB (B side)

• Follow the (Step 1) - (Step 7) of item 7.1.1. •Check the PCB (B side) as shown below.

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