Panasonic DVDK-32 Service manual

Specifications

Power supply:

Power consumption: 10 W

Power consumption in standby mode:

Dimensions: 430 (W) × 251 (D) × 43 (H) mm

Mass: 2.2 kg (approx.)

Signal system: PAL 625/50, PAL 525/60, NTSC

Operating temperature range: +5to+35°C

Operating humidity range: 5 to 90 % RH (no condensation)

Discs played [8 cm (3 ” ) or 12 cm (5 ” )]:

(1) DVD (DVD-Video)

(2) DVD-R (DVD-Video, MP3,, JPEG,)

(3) DVD-RW (DVD-Video, MP3,, JPEG,)

(4) +R/+RW (Video)

(5) DVD-R DL (DVD-Video)

(6) +R DL (Video)

(7) CD, CD-R / CD-RW (CD(CD-DA), Video CD, SVCD ,

*1 Conforming to IEC62107

*2 MPEG-1 Layer 3, MPEG-2 Layer 3

*3 Exif Ver2.1 JPEG Baseline files

*2,4

MP3

Picture resolution: between 320 × 240 and 6144 × 4096 pixels (Sub sampling is 4:2:2 or 4:2:0)

, JPEG

*3,4

)

C110-240 V, 50/60 Hz

(DVD-K32GCS/PL)

C120 V, 60 Hz

(DVD-K32PLA)

Less than 1.5 W

(DVD-K32GCS)

NTSC

(DVD-K32PL/PLA)

4 4

ORDER NO.CHM0602001CE

DVD Player

DVD-K32GCS DVD-K32PL DVD-K32PLA

DL4.5 Mechanism Series

Color

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

*4 The total combined maximum number of recognizable audio

and picture contents and groups: 1000 audio and picture contents and 256 groups.

ideo output:

Output level: 1 Vp-p (75 Ω )

Output terminal: Pin jack (1 system)

S video output:

Y output level: 1 Vp-p (75 Ω )

C output level: 0.286 Vp-p (75 Ω )

(DVD-K32PL/K32PLA)

NTSC: 0.286 Vp-p (75 Ω )

PAL: 0.300 Vp-p (75 Ω )

(DVD-K32GCS)

Output terminal: S terminal (1 system)

Component video output: [NTSC: 525(480)p/525(480)i,

PAL: 625(576)p/625(576)i]

(DVD-K32GCS)

[NTSC: 525(480)p/525(480)i]

(DVD-K32PL/K32PLA)

Y output level: 1 Vp-p (75 Ω )

PBoutput level: 0.7 Vp-p (75 Ω )

PRoutput level: 0.7 Vp-p (75 Ω )

Output terminal: Pin jack (Y: green, PB: blue,

PR: red)

Number of terminals: 1 system

ideo performance:

Horizontal resolution: More than 500 lines

Video S/N ratio: More than 65dB

Audio output:

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

Output level: 2 Vrms (1 kHz, 0 dB)

Output terminal: Pin jack

Number of terminals:

2 channel: 1 system

Audio performance:

(1) Frequency response:

l DVD (linear audio):

l CD audio:

(2) S / N ratio:

l CD audio:

(3) Dynamic range:

l DVD (linear audio):

l CD audio:

(4) Total harmonic distortion:

l CD audio:

Digital audio output:

Coaxial digital output: Pin jack

4 Hz-22 kHz (48 kHz sampling)

4 Hz-44 kHz (96 kHz sampling)

4 Hz-20 kHz

115 dB

92 dB

90 dB

0.003 %

Pickup

Wave length: 653 nm / 790 nm

Laser power: CLASS 1 / CLASS 3A

Note:

Specifications are subject to change without notice.

Mass and dimensions are approximate.

Solder:

This model uses lead free solder (PbF).

CONTENTS

Page Page

1 SAFETY PRECAUTIONS

1.1. GENERAL GUIDELINES

2 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD) TO

ELECTROSTATICALLY SENSITIVE (ES) DEVICES

3 PRECAUTION OF LASER DIODE

4 Service caution based on legal restrictions

4.1. General description about Lead Free Solder (PbF)

5 PREVENTION OF STATIC ELECTRICITY DISCHARGE

5.1. Grounding for electrostatic breakdown prevention

5.2. Handling Precautions for Traverse Unit (Optical Pickup)

6 DISASSEMBLING THE CASING AND CHECKING P.C.B.S

6.1. Disassembly Procedure

6.2. Casing Parts and P.C.B. Positions

6.3. Top Panel

6.4. Front Panel

6.5. Mic P.C.B.

6.6. Operation P.C.B. and Power SW P.C.B.

6.7. Module P.C.B.

6.8. Mechanism Unit

6.9. Rear panel

6.10. Mother P.C.B.

6.11. Service Position

7 ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT

7.1. Disassembly Procedure

7.2. Traverse Unit

7.3. Tray

7.4. Loading section 14

7.5. Loading motor P.C.B.

7.6. TRV Unit

8 SELF-DIAGNOSIS FUNCTION AND SERVICE MODES

8.1. Optical Pickup Breakdown Diagnosis

8.2. Service Mode Table 1

8.3. DVD Self Diagnostic Function-E rror Code

8.4. Last Error Code saved during NO PLAY

8.5. Service mode table 2

8.6. Sales demonstrat ion lock function

8.7. Handling After Completing Repairs

9 SERVICE PRECAUTIONS

9.1. Recovery after the DVD player is repaired.

9.2. Firmware version-up of the DVD player

10 ADJUSTMENT PROCEDURES

10.1. Service Tools and Equipment

10.2. Important points in electrical adjustment

10.3. Storing and Handling Test Discs

11 ABBREVIATIONS

12 VOLTAGE CHART

12.1. MOTHER P.C.B.

12.2. MODULE P.C.B.

12.3. MIC P.C.B.

13 BLOCK DIAGRAM

13.1. OVERALL BLOCK DIAGRAM

13.2. POWER SUPPLY BLOCK DIAGRAM

13.3. SERVO BLOCK DIAGRAM

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

13.4. VIDEO BLOCK DIAGRAM 36

13.5. AUDIO BLOCK DIAGRAM

14 INTERCONNECTION SCHEMATIC DIAGRAM & SCHEMATIC

DIAGRAM NOTES

14.1. INTERCONNECTION SCHEMATIC DIAGRAM

14.2. SCHEMATIC DIAGRAM NOTES

15 SCHEMATIC DIAGRAM

15.1. POWER SUPPLY SECTION (MOTHER P.C.B. (1 / 2))

SCHEMATIC DIAGRAM (DVD-K32PLA)

15.2. POWER SUPPLY SECTION (MOTHER P.C.B. (1 / 2))

SCHEMATIC DIAGRAM (DVD-K32GCS/PL)

15.3. FRONT & AV OUT SECTION (MOTHER P.C.B. (2 / 2))

SCHEMATIC DIAGRAM

15.4. MODULE SCHEMATIC DIAGRAM

15.5. MIC SCHEMATIC DIAGRAM

16 PRINT CIRCUIT BOARD

16.1. MOTHER P.C.B.

16.2. MOTHER P.C.B. ADDRESS INFORMATION

16.3. MODULE P.C.B. (1/2)

16.4. MODULE P.C.B. (2/2)

16.5. MODULE P.C.B. ADDRESS INFORMATION

17 EXPLODED VIEWS

17.1. CASING PARTS & MECHANISM SECTION EXPLODED

VIEW

17.2. MECHANISM SECTION EXPLODED VIEW

17.3. PACKING & ACCESSORIES SECTION EXPLODED

18 REPLACEMENT PARTS LIST

VIEW

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

1 SAFETY PRECAUTIONS

1.1. GENERAL GUIDELINES

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.1.1. LEAKAGE CURRENT COLD

CHECK

1. Unplug the AC cord and connect a jumper between the two prongs on the plug.

2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the expose d metallic part has a return path to thechassis, the reading should be between 1MΩ and 5.2MΩ.

When the exposed metal does not have a return path to

the chassis, the reading must be

Figure 1

1.1.2. LEAKAGE CURRENT HOT CHECK (See Figure 1 .)

1. Plug the AC cord directly into the AC outlet. Do not use an

isolation transformer for this check.

2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF

capacitors, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more

sensitivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the

voltage at each point.

5. Reverse the AC plug in the AC outlet and repeat each of the

above measurements.

6. The potential at any point should not exceed 0.75 volts

RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current mu3st not exceed 1/2 milliamp. In case a measurement is outsideof the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.

2 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD)

TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistorsand semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available dischargingESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparableconductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficie nt todamage an ES device).

3 PRECAUTION OF LASER DIODE

4 Service caution based on legal restrictions

4.1. 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 (86°F) more than that of the normal solder.

Definition 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

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

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

(662±86°F).

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%

5 PREVENTION OF STATIC ELECTRICITY DISCHARGE

The laser diode in the traverse unit (optical pickup) may brake down due to static electricity of clothes or human body. Use due caution to electrostatic breakdown when servicing and handling the laser diode.

5.1. Grounding for electrostatic breakdown prevention

Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electricity in the working environment. Proceed servicing works under the working environment where grounding works is completed.

5.1.1. Worktable grounding

1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.

5.1.2. Human body grounding

1. Use the anti-static wrist strap to discharge the static electricity form your body.

5.1.3. Handling of optical pickup

1. To keep the good quality of the optical pickup maintenance parts during transportation and before installation, the both ends of the laser diode are short-circuited. After replacing the parts with new ones, remove the short circuit accordingto the correct procedure. (See this Technical Guide.)

2. Do not use a tester to check the laser diode for the optical pickup. Failure to do so will damage the laser diode due to the power supply in the tester.

5.2. Handling Precautions for Traverse Unit (Optical Pickup)

1. Do not give a considerable shock to the traverse unit (optical pickup) as it has an extremely high-precise structure.

2. When replacing the optical pickup, install the flexible cable and cut its short land with a nipper. See the optical pickup replacement procedure in this Technical Guide. Before replacing the traverse unit, remove the short pin for preventingstatic electricity and install a new unit. Connect the connector as short times as possible.

3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handlin g the cable.

4. The half-fixed resistor for laser power adjustment cannot be adjusted. Do not turn the resistor.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

6 DISASSEMBLING THE CASING AND CHECKING P.C.B.S

6.1. Disassembly Procedure

6.2. Casing Parts and P.C.B. Positions

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

6.3. Top Panel

1. Unscrew the screws.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

2. Unscrew the screws.

6.4. Front Panel

1. Release the tabs and connec tors.

2. Release the tabs.

6.6. Operation P.C.B. and Power SW P.C.B.

1. Unscrew the screws.

6.7. Module P.C.B.

1. Remove the connectors.

2. Unscrew the screws.

3. Press each tab with the nipper to module PCB vertically.

6.5. Mic P.C.B.

1. Unplug the knob.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

6.8. Mechanism Unit

6.9. Rear panel

1. Unscrew the screws

2. Release the tabs.

1. Unscrew the screws.

2. Release the tabs.

6.10. Mother P.C.B.

1. Unscrew the screws.

6.11. Service Position

6.11.1. Servicing position of the Module P.C.B.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

6.11.2. Servicing position of the Mother P.C.B.

6.11.3. List of the Extension Cables

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

7 ASSEMBLING AND

DISASSEMBLING THE MECHANISM UNIT

7.1. Disassembly Procedure

4. Remove the traverse unit

7.2. Traverse Unit

1. Slide the lever (A) in the arrow direction (to the opposite side) till it stops.

2. Slide the lever (A) further by bending the tab at the right side of the lever A in the right direction. (The right groove opens and the boss becomes seen.)

3. Open the lever (B) to left. (The 2 grooves at the left side open.)

7.3. Tray

1. Slide the guide tray unit while pressing the stopper in the arrow direction, and remove the guide tray unit.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

5. Remove the drive arm concave phase from the tray slider and tray.

2. Raise the loading unit.

3. Slide the lever in the arrow direction till it stops and pull the tray out.

1. Insert a part of the tray into the unit sliding over the groove on the mechanical chassis unit.

2. Insert the tray to the point before the tab of the mechanical chassis unit.

4. Spread the tabs at the both sides and pull the tray out. (The tray slides a little forward and stops.)

3. Hook the drive arm concave phase over the tray and the tray slider.

4. Press in the tray.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

5. Make sure that the tray and the drive arm move smoothly.

4. Remove the belt.

5. Unlock the tab and remove the pulley.

6. Remove the relay gear.

7.4. Loading section

1. Spread the tabs at the both sides and push out the drive arm shaft.

7. Turn the change lever in the arrow direction till it stops.

8. Hook the change lever spring on the change lever project part temporarily.

2. Hook the lock lever spring on the lock lever projection part temporarily.

3. Unlock the tab and remove the lock lever.

9. Pull the lever (B) in the bottom side to your side and remove the change lever.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

7.5. Loading motor P.C.B.

1. Unscrew the screws

10. Remove the drive rack, the sub rack and the drive gear.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

7.6. TRV Unit

7.6.1. Cautions to Be Taken in Handling the TRV Unit

The laser diode in the TRV unit may be damaged due to electrostatic discharge generating from clothes or human body. Use due caution to electrostatic discharge damage when servicing the laser diode.

1. Do not give a considerable shock to the TRV unit as it has an extremely high-precise structure.

2. To prevent the laser diode from the electrostatic discharge damage, the Intermediate FFC of the TRV unit removed from the PCB should be short-circuited with a short pin or a clip.

3. The Intermediate FFC may be cut off if an excessive force is applied to it. Use caution when handling the Intermediate FFC.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

7.6.2. Procedure for Disassembling the TRV Unit

Notice

1. This section aims to focus on the disassembling methods of some parts in the case that no damage is occurred to optical pickup units.

2. When the optical pickup unit is defective, the overall traverse unit needs replacement.

3. Please note that appropriate actions needs to be taken to prevent static damage.

Caution

Insert the short pin into the FFC of the optical pickup unit. (See “Caution to be taken in handling the TRV Unit”)

1. Before changing 22P FFC, please weld the short-circuit solder. (refer to Fig. A)

After changing the 22P FFC, please remove the solder. (refer to Fig. B)

3. Push the tabs on the back and remove the TRV Gear B and A.

2. Remove the connecter, take out the 22P FFC.

4. Unscrew the screws.

5. Remove the drive rack.

Caution

Do not dissemble drive rack fixing screws repeatly, otherwise the screws may hard to tighten and affect the accuracy of optical pickups consequently.

6. Remove the solders of the SP motor and the TRV motor.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

7. Unscrew the screws, then remove the TRV Motor and TRV SW P.C.B. Unit.

Caution

a. Do not give a considerable shock to the optical

pickup unit as it has an extremely high-precise structure.

b. Do not touch the lens in the optical pickup unit.

2. The FFC is fixed as shown below.

1. After replacing the TRV Unit and connecting the 22P

FFC, remove the solder on the optical pickup unit.

DVD-K32GCS / DVD-K32PL / DVD-K32P LA

8 SELF-DIAGNOSIS FUNCTION AND SERVICE MODES

8.1. Optical Pickup Breakdown Diagnosis

The optical pickup self-diagnosis function has been included in this unit. When repairing, use the following procedure for effective Self-diagnosis . Be sure to use the self-diagnosis function before replacing the TRV Unit when "NO DISC" is displayed. As a guideline, you should replace the TRV Unit when the value of the laser drive current is more than 55.

Note:

Press the power button to turn on the power, and check the value within three minutes before the unit warms up. (Otherwise, the result will be incorrect.)

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