Panasonic SA-PM27E Manuel utilisateur

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Service Manual

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Order No. MD0206158C2

CD Stereo System

●SA-PM27E

SA-PM27EB

SA-PM27EG

Colour

(K) ... Black Type

Specification

Amplifier Section

RMS Power output

10% Total harmonic distortion

100 Hz, both channels driven (Low channel) 30 W per channel (6Ω)

1 kHz, both channels driven (High channel) 30 W per channel (6Ω)

Total Bi-Amp power 60 W per channel

Input sensitivity

AUX 250 mV

Input impedance

AUX 11.8 kΩ

FM Tuner Section

Frequency range 87.50-108.00 MHz (50 kHz steps)

Sensitivity 1.8•V (IHF)

S/N 26 dB 1.5•V

Antenna terminal(s) 75Ω(unbalanced)

AM Tuner Section

Frequency range 522-1629 kHz (9 kHz steps)

Sensitivity

S/N 20 dB (at 999 kHz) 560•V/m

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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 100 kHz

Erasing system AC erase 100 kHz

Tape speed 4.8 cm/s

Overall frequency response (+3 dB, -6 dB at Deck Out)

Normal (type I) 35 Hz - 14 kHz

S/N 50 dB (A weighted)

Wow and flutter 0.18% (WRMS)

Fast forward and rewind times Approx. 120 seconds with C-60 cassette tape

CD Section

Sampling frequency 44.1 kHz

Decoding 16 bit linear

Pickup

Beam source/ Wavelength Semiconductor laser/ 780 nm

Number of channels Stereo

Frequency response 20 Hz - 20 kHz (+1, -2 dB)

Wow and flutter Below measurable limit

Digital filter 8 fs

D/A converter MASH (1 bit DAC)

General

Power supply AC 230 V, 50 Hz

Power consumption 110 W

Dimensions (W x H x D) 179 x 241 x 375 mm

Mass 5.6 kg

Power consumption in standby mode Approx. 0.7 W

System: SC-PM27(E) Music Center: SA-PM27(E)

Speaker: SB-PM27(P)

System: SC-PM27(EB) Music Center: SA-PM27(EB)

Speaker: SB-PM27(P)

System: SC-PM27(EG) Music Center: SA-PM27(EG)

Speaker: SB-PM27(EG)

Notes:

1. Specifications are subject to change without notice.

Mass and dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum analyzer.

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1 Before Repair and Adjustment

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Disconnect AC power, discharge Power Supply Capacitors C506, C507, C508, C576, C577, C587,

C588, C615 through a 10 Ω, 5 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a

screw driver blade, for instance), as this may destroy solid statedevices.

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

Current consumption at AC 230 V, 50 Hz in NO SIGNAL mode should be ~300 mA.

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2 Protection Circuitry

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

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

●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 ofthe 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.

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3 Accessories

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AC Mains lead (E/EG).....1 pc

AC Mains lead (EB).....1 pc

AM Loop Antenna.....1 pc

FM Indoor Antenna.....1 pc

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Antenna Plug Adaptor.....1 pc (EB only)

Remote Control Transmitter.....1 pc

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4 Caution for AC Mains Lead

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5 Self-Diagnostic Display Function

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This unit is equipped with a self-diagnostic display function, which will be useful during servicing and

maintenance.

●Refer to the next page for display symbols, symptoms, etc.

5.1 Preparations

5.2 Setting of the Self-Diagnostic Mode

5.3 Restoring Normal Display

5.4 Clearing Self-Diagnostic Memory

5.5 Displaying Self-Diagnostic Results

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5.1 Preparations

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1. A Cr02-positioned blank cassette tape with an erase prevention niche on either Side A or B.

2. A normal-positioned music tape with erase prevention niches on both Sides A and B. Both tapes

are halfway forwarded in advance.

3. The remote controller that comes with this unit.

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5.2 Setting of the Self-Diagnostic Mode

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