Panasonic SA-PM27E User manual

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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.
© 2002 Matsushita Electronics (S) Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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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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