Panasonic SA-PM30MD User manual

■Amplifier Section

THD 10%, both channels driven

HIGH 2X6W(6Ω)

LOW 2X14W(6Ω)

Total BI-AMP power 2X20W

Input sensitivity

AUX 320 mV

P-MD 100 mV

Input impedance

AUX 22 kΩ

P-MD 10 kΩ

Output impedance

Headphone 16-32 Ω

■FM tuner section

Frequency range 87.50-108.00 MHz

(0.05 MHz steps)

Sensitivity 1.8µV (IHF)

S/N 26 dB 1.5µV

Antenna terminals 75 Ωunbalanced

■AM tuner section

Frequency range 522-1629 kHz (9kHz steps)

Sensitivity

S/N 20 dB 500 µV/m

reserved. Unauthorized copying and distribution is a

violation of law.

SA-PM30MD

Colour

(S)... Silver Type

Area

(EB)... Great Britain

(EG)... Germany and Italy

TAPE SECTION

AR2 MECHANISM SERIES

CD SECTION

RAE0155Z TRAVERSE DECK SERIES

MD SECTION

MR3 MECHANISM SERIES

■Cassette Deck Section

Track system 4 track, 2 channel

Heads

Record/playback Solid permalloy head

Erasure Double gap ferrite head

Motor DC servo motor

Recording system AC bias 100kHz

Erasing system AC erase 100kHz

Tape speed 4.8 cm/s

Overall frequency reponse (±3dB at

DECK OUT)

NORMAL (TYPE I) 50- Hz - 13 kHz

HIGH (TYPE II) 50- Hz - 13 kHz

S/N ratio

Normal (TYPE I) 52dB (A weighted)

Wow and flutter 0.18 % (WRMS)

Fast forward and rewind time Approx. 120 seconds with C-60

cassette tape

■MD section

System Minidisc digital audio system

Recording Magnetic field modulation direct

overwrite

MD Stereo System

Specification

ORDER NO. MD9912156C2

Reading Non-contact optical system with

semiconductor laser (Wavelength

= 780nm)

Sampling frequency 44.1 kHz

Coding system ATRAC *

Number of channels 2 channels stereo

Wow and flutter Below measurable limit

■CD section

Sampling frequency 44.1kHz

Decoding 16 bit linear

Beam source Semiconductor laser

Wave length 780 nm

Number of channels 2 channels stereo

S/N ratio

SP OUT 82 dB (JIS A)

Wow and flutter Below measurable limit

Digit filter 8fs

D/A converter MASH (1 bit DAC)

■General

Power supply

1 Before Repair and Adjustment 3

2 Protection Circuitry 3

3 Accessories 3

4 Handling Precautions For Traverse Deck (CD/MD) 4

5 Precaution of Laser Diode 5

6 Caution for AC Mains Lead 6

7 Operation Procedures 7

8 Operation Check and Main Component Replacement

Procedures 9

9 Self-Diagnostic Display Function 19

For EB AC 230-240 V, 50Hz

For EG AC 220-230 V, 50Hz

Power consumption 74 W

Standby

ECO 0.6 W

NORMAL 8.5 W

Dimensions (WxHxD) 195x288x292 mm

Weight 5.6 kg

Notes :

1. Specifications are subject to change without notices. Weight and

dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum

analyzer.

* US and foreign patents licensed from Dolby Laboratories Licensing

Corporation.

■System: SC-PM30MD (EB) Music Center: SA-PM30MD (EB)

Speaker: SB-PM30 (E)

■System: SC-PM30MD (EG) Music Center: : SA-PM30MD (EG)

Speaker: SB-PM30 (EG)

10 Measurement and Adjustment 21

11 Illustration of IC’s, Transistors and Diodes 25

12 Terminal Function of IC´s 26

13 Block Diagram 33

14 Schematic Diagram 43

15 Printed Circuit Board 63

16 Wiring Connection Diagram 74

17 Troubleshooting Guide 75

18 Parts Location and Replacement Parts List 83

CONTENTS

Page Page

SA-PM30MD

3 Accessories

Remote Control Transmitter

FM indoor antenna

AC mains lead (EG)

AC mains lead (EB)

FM antenna Plug

Adaptor (EB)

AM Loop antenna

1 Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C905, C910 through a 10Ω, 5W resistor to ground.

DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.

After repairs are completed, restore power gradually using a variac, to avoid overcurrent.

[EG]

• Current consumption at AC 230V, 50 Hz in NO SIGNAL mode should be ~150mA.

[EB]

• Current consumption at AC 240V, 50 Hz in NO SIGNAL mode should be ~150mA.

2 Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:

• No sound is heard when the power is turned on.

• Sound stops during a performance.

The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are

"shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.

If this occurs, follow the procedure outlines below:

1.Turn off the power.

2.Determine the cause of the problem and correct it.

3.Turn on the power once again after one minute.

Note:

When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

Note : Refer to Packing Materials & Accessories for part number.

SA-PM30MD

The laser diode in the traverse deck (optical pickup) 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 pickup).

●Handling of CD traverse deck (optical pickup)

1.Do not subject the traverse deck (optical pickup) to

static electricity as it is extremely sensitive to electrical

shock.

2.The short land between the No.4 (LD) and No.5 (GND)

pins on the flexible board (FFC) is shorted with a solder

build-up to prevent damage to the laser diode.

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

board (FPC board).

4.Do not turn the variable resistor (laser power

adjustment). It has already been adjusted.

●Handling of MD Unit (optical pickup)

1.Do not subject the MD unit (optical pickup) to static

electricity as it is extramely sensitive to electrical shock.

2.The short land between the No.25 (LD-GND) and No.

24 (LD) pins on the flexible board is shorted with a

solder builder up to prevent damage to the laser diode.

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

board (FFC).

4.Do not turn the variable resistor (laser power

adjustment). It has already been adjusted..

●Grounding for electrostatic breakdown prevention

1.Human body grounding

Use the anti-static wrist strap to discharge the static

electricity from your body.

2.Work table grounding

Put a conductive material (sheet) or steel sheet on the

area where the traverse deck (optical pickup) is placed,

and ground the sheet.

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 pickup).

Caution when Replacing the Optical Pickup :

The traverse has a short point shorted with solder to protect

the laser diode against electrostatics breakdown. Be sure to

remove the solder from the short point before making

connections.

4 Handling Precautions For Traverse Deck (CD/MD)

SA-PM30MD

■Use of Caution Labels

5 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 mW/VDE

Laser radiation from pick up unit 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.

ACHTUNG :

Dieses Produkt enthält eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit

abgestrahlt.

Wellenlänge : 780nm

Maximale Strahlungsleistung der Lasereinheit :100W/VDE

Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgende Punkte beachtet werden:

1.Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist.

2.Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.

3.Nicht mit optischen Instrumenten in die Fokussierlinse blicken.

4.Nicht über längere Zeit in die Fokussierlinse blicken.

ADVARSEL :

I dette a apparat anvendes laser.

CAUTION!

THIS PRODUCT UTILIZES A LASER.

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT

IN HAZARDOUS RADIATION EXPOSURE.

SA-PM30MD

6 Caution for AC Mains Lead

SA-PM30MD

7 Operation Procedures

SA-PM30MD

8.1. Checking Procedure for Each

Major P.C.B.

8.1.1. Checking for the Deck P.C.B.

Step 3 Lift the deck unit in direction 1 and follow by direction 2

to remove the deck unit.

8 Operation Check and Main Component Replacement

Procedures

“ATTENTION SERVICER”

Some chassis components may have sharp edges. Be careful when disassembling and servicing.

1.This section describes procedures for checking the operation of the major printed circuit boards and replacing the main

components.

2.For reassembly after operation checks or replacement, reverse the respective procedures.Special reassembly procedures are

described only when required.

3.Select items from the following index when checks or replacement are required.

4.Refer the Parts No. on the page of "Main Component Replacement Procedures", if necessary.

Contents

• Checking Procedure for each major P.C.B.

− Checking of the Deck P.C.B.

− Checking for the Transformer P.C.B.

− Checking for the Main P.C.B.

− Checking for the Tuner and FL P.C.B.

− Checking for the CD Servo P.C.B.

− Checking for the MD Servo P.C.B.

− Checking for the Power P.C.B.

• Diaassembly and Assembly of the Disc Tray and CD Traverse Unit

− Disassembly of the Disc Tray

− Disassembly of the CD Traveerse Unit

• Main Component Replacement Procedure

− Replacement of the CD Servo P.C.B. and Optical Pick-up Unit

− Removal of the Deck P.C.B. and Mechanism P.C.B. for replacing parts

− Replacement for the Magnetic Head and Optical Pick-up

− Replacement for the Belt and Loading Motor Assembly

− Replacement for the Traverse Motor Assembly

Warning :-

This product uses a laser diode. Refer to caution statement Precaution of Laser Diode.

ACHTUNG :-

• Die Lasereinheit nicht zerlegen.

• Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.

SA-PM30MD

• Check the Deck P.C.B. as shown.

8.1.2. Checking for the Transformer

P.C.B.

• Check the Transformer P.C.B. as shown.

8.1.3. Checking for the Main P.C.B.

Step 2 Remove the panel in the direction of arrow.

• Check the Main P.C.B. as shown.

8.1.4. Checking for the Tuner and FL

P.C.B.

Step 1 Desolder 4 points and remove the shield plate.

SA-PM30MD

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