Service Manual
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Order No. MD0004066C2
AV Control Stereo Receiver
SA-EX140
Color
(K) ... Black Type
E ... Europe
EB ... Great Britain
EG ... Germany and Italy
FM Tuner Section |
|
Frequency Range |
87.50-108.00 MHz |
Sensitivity |
|
S/N 30 dB |
1.5μV/75Ω |
|
|
S/N 26 dB |
1.3μV/75Ω |
|
|
S/N 20 dB |
1.2μV/75Ω |
|
|
IHF usable sensitivity |
1.5μV/75Ω (IHF’58) |
IHF 46 dB stereo quieting sensitivity |
22μV/75Ω |
|
|
Total harmonic distortion |
|
MONO |
0.2% |
STEREO |
0.3% |
S/N |
|
MONO |
60 dB (73 dB, IHF) |
STEREO |
58 dB (67 dB, IHF) |
Frequency response 20 Hz-15 kHz |
+1 dB, -2 dB |
Alternate channel selectivity±400 kHz |
65 dB |
Capture ratio |
1.5 dB |
Image rejection at 98 MHz |
40 dB |
IF rejection at 98 MHz |
70 dB |
Spurious response rejection at 98 MHz |
70 dB |
AM suppression |
50 dB |
Stereo separation |
|
1 kHz |
40 dB |
Carrier leak |
|
19 kHz |
-30 dB (-35 dB, IHF) |
38 kHz |
-50 dB (-55 dB, IHF) |
Channel balance (250 Hz-6.3 kHz) |
±1.5 dB |
Limiting point |
1.2μV |
Bandwidth |
|
IF amplifier |
180 kHz |
FM demodulator |
1000 kHz |
Antenna terminal |
75Ω (unbalanced) |
AM Tuner Section |
|
Frequency Range |
522-1611 kHz |
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Sensitivity
Selectivity (at 999 kHz)
IF rejection (at 999 kHz)
Amplifier Section
Power output
DIN 1 kHz (T.H.D. 1%)
40 Hz-20 kHz continuous power outputboth channels driven
Total harmonic distortion rated power at 40 Hz-20 kHz half power at 1 kHz
Power bandwidth
both channels driven. -3 dB Damping factor
Load impedance
Front
Frequency response
PHONO
CD, TAPE, VCR
Input sensitivity and impedance
PHONO
CD, TAPE, VCR
S/N at rated power (8Ω)
PHONO
CD, TAPE, VCR
Tone controls
BASS
TREBLE
Output voltage
TAPE REC (OUT), VCR OUT
Channel balance (250 Hz-6.3 kHz)
Channel separation
Headphones output level and impedance
General
Power supply
Power consumption
Dimensions (W x H x D)
Weight
Notes:
20μV, 330μV/m
55 dB
50 dB
2 x 100 W (4Ω)
2 x 80 W (8Ω)
0.5% (8Ω)
0.07% (8Ω)
10 Hz-40 kHz (8Ω)
30 (8Ω)
4-16Ω
RIAA standard curve (30 Hz-15 kHz)±0.8 dB
10 Hz-40 kHz,±3 dB
3 mV/47 kΩ
200 mV/22 kΩ
70 dB (IHF, A: 80 dB)
75 dB (IHF, A: 85 dB)
50 Hz,+10 to -10 dB
20 kHz,+10 to -10 dB
200 mV ±1 dB
55 dB
430 mV/330Ω
AC 230-240 V, 50 Hz (For EB only) AC 230 V, 50 Hz (For E/EG only)
190 W (in standby condition: 3 W)
430 x 136 x 312 mm
7.0 kg
1.Specifications are subject to change without notice./Weight and dimensions are approximate.
2.Total harmonic distortion is measured by the digital spectrum analyzer.
©2000 Matsushita Electronics (S) Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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7 Troubleshooting
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This unit has test points on each circuit board block for use in troubleshooting. 7.1 Connection
7.2 Required items
7.3 Test Procedure for Amplifier Circuit
7.4 Test Points Positions of Amplifier Circuit
7.5 Normal Waveforms of Amplifier Circuit and Likely Faulty Blocks 7.6 Circuit Blocks
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7.1 Connection
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Connect either a CD player, tape deck or AF oscillator to the input terminals of the unit.
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