Marantz PM553 - Test Equipment; Voltage Selector

shassis of
nits. Each
ed within
he circuit
ard P700
vard P701
vard P702
vard P703
vard P800
yard PJOO
vard PLOO
vard PPOO
rard PSOO
vard.PUOO
ard PVOO
ard PWOO
2. TEST EQUIPMENT REQUIRED FOR SERVICING
This table lists the test equipment required for servicing the Model PM453/PM553 Stereo Amplifier.
Item
Use
Distortion Analyzer
Reena n
Distortion measurements
Audio Oscillator
AC VTVM
Sinewave and squarewave signal source
Voltage measurements (AC)
Oscilloscope
Waveform analysis and trouble shooting and ASO alignment
Circuit Tester
Trouble shooting
DC VTVM
Voltage measurements (DC)
AC Wattmeter
—__
Monitors primary power to amplifier
Line Voltmeter
Monitors potential of primary power to amplifier
Vspaile Autotransformer (0 ~ 140V AC, 10A)
Adjust level of primery power to amplifier
Shorting Plug
Shorts amplifier input to eliminate noise pickup
3. VOLTAGE CONVERSION :
To convert the unit to a‘different power source voltage,
change the position as illustrated in the drawing below.
CAUTION: DISCONNECT POWER SUPPLY CORD
FROM AC OUTLET BEFORE CONVERT-
ING VOLTAGE. DO NOT DISASSEMBLE
THE VOLTAGE SELECTOR ABSOLUTELY.
Note on safety:
Symbol A\ Fire or electrical shock hazard. Only original parts
should
be
used
to
replace
any
part
marked
with
symbol
A
.
Any
other
component
substitution
(other
than
original
type),
may
increase
risk
of
fire
or
electrical
shock
hazard,
VOLTAGE SELECTOR
240V ~ 220V ~
(N, A) Version
VOLTAGE
SELECTOR
240V ~
a.
220V ~
120V ~
pee
110V ~
(E) Version
MS 96