Marantz 1060 - Test Equipment for Servicing; Required Test Equipment List

7. TEST EQUIPMENT REQUIRED FOR SERVICING
Table 1 lists the test equipment required for servicing the Model 1060 Stereo Console Amplifier.
The wattmeter, ac voltmeter, and variac may be assembled as a test fixture as shown
schematically in Figure 1, and the load resistors and ac ammeter may be assembled into a second
test fixture as shown in Figure2.
Distortion Analyzer
Audio Oscillator
Oscilloscope
VTVM
AC Wattmeter
AC Ammeter
(0 to 10 amps)
Line Voltmeter
(0 to 150 vac)
Variable Autotransformer
(O to 140 vac, 10 amps)
Shorting Plug
Power Supply Bleeder
Resistor (10 ohms at 1 W)
Output Load Resistor
(8Q + 0.5%, 250W)
Output Load Resistor
(42 + 0.5%, 250W)
Output Load
Capacitor (0.5 mfd)
AC Power Control Box
Amplifier Output
Load Box
Hewlett Packard, Model 331A
or 333A
Weston Model CVO-100P
(NOTE: Less than 0.02 per-
cent residual distortion is re-
quired.)
Tektronix, Model 503; Data,
Model 555
RCA _ Senior
Model WV-98C
Simpson, Model 390
Volt-Ohmyst,
Commercial Grade
Commercial Grade
Powerstat, Model 116B
Use phono plug with 600
ohms across center pin and
shell.
Commercial Grade
Commercial Grade
Commercial Grade
Mylar
Optional Item. Fabricate in
accordance with Figure1.
Optional Item. Fabricate in
accordance with Figure2.
Measures distortion and vol-
tage of amplifier output.
Sinewave and squarewave sig-
nal source.
Waveform analysis and trou-
bleshooting.
Voltage and resistance mea-
surements.
Monitors primary power con-
sumption of amplifier.
Monitors amplifier output un-
der short circuit condition.
Monitors potential of primary
power to amplifier.
Adjusts level of primary power
to amplifier.
Shorts
eliminate noise pickup.
amplifier input to
Discharges power supply filter
capacitors prior to disassembly
or resistance measurements.
Provides 8-ohm load for ampli-
fier output termination.
Provides 4-ohm load for ampli:
fier output termination.
Provides capacitive load for
instability checks.
Monitors and controls primary
power for amplifier.
Provides various amplifier
loads and can monitor shorted
output.