Marantz PROFESSIONAL Series - Performance Verification

AUTO TRANSF
2% AMP NSFORMER
SLO-BLO
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1
t
(REVERSE
1
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t
chvd 4g
AC WATTMETER
0 TO 300 WATTS
105 TO 125 VAC
50/60 Hz
A\VOLTMETER
(TO 150 VAC
Figure 2. AC Power Control Box, Block Diagram
PERFORMANCE VERIFICATION
The test equipment listed below is recommended for sevicing the Model 510 Series Stereo Power Amplifier.
The Performance Verification section of this manualcontaining the test and adjustment procedures, are
based on the use of these items or their equivalent. bs
ITEM MANUFACTURER &MODEL NO. USE
OR EQUIVA\ENT
AC Wattmeter Simpson Model 1379 | Monitor primary power consumption
(0-300 Watts) (Catalog No. 10975) of amplifier.
Line Voltmeter Simpson Model 1359 F Monitor primary tine voltage
(0-150 VAC) (Catalog No. 10320) to amplifier.
Variable Autotransformer Superior Electric Co. Controls level of primary
(0-140 VAC, 22 Amps} Powerstat Model 136B power to amplifier.
Above items to be connected per Figue 2. - AC Power Control Box
Output Load Resistor Dale Electronic, Inc. Provides Load for amplifier
(8 ohm + 1.0%, 250W) RH-250 output termination.
4 Required
Output Load Capacitor Mylar Foil Provides capacitive load
(0.5 mfd, 300V) for instability tests
2 Required
Above items to be assembled per Figure3. - Amplifier Output Load Box
Table 1. Recommendd Test Equipment
DISTORTION
ANALYZER
O+
AUDIO
OSCILLATOR
CONNECT AS
REQUIRED
CONNECT AS REQUIRED
OSCILLOSCOPE
AMPL OUTPUT
IN TERMINALS
MODEL 510/M
Figure 4. Test Equipment Connection, Block Diagram
MANUFACTURER & MODEL NO.
M
Distortion
Analyzer
Sound
Technology
1700B
Measures
distortion
and
Hewlett
Packard
Model
331A
voltage
of
amplifier
output
or
333A
(Harmonic Distortion,
Intermodulation)
Sound Technology Model 1700B Sinewave Signal Source
Audio Oscillator
Waveform analysis and
trouble analysis
Tektronix Model T-932,
Philips PM3232
Oscilloscope
Above items to be connected per Figure 4. or as directed in Test or Adjustment Procedures
Simpson 312, 313, or 314,
Triplett 801,
Fiuke 8000 (Digital)
Voltage and resistance
measurements.
Discharges filter capacitors.
Bleeder Resistor
100 W Light Bulb
Phono Plug with 600 ohm Hum and noise measureme nts.
resistor across center pin and shell
Shorting Plug
Curve Tracer Heathkit Model IT-1121 Transistor parameter mesurements.
Table 1. Recommended Test Equipment (continued)