Prology CMD-150 Service Manual page 3

MEASUREMENT SETUP
Tuner FM
RF G enerator
e.g. PM5 326
U se a bandpass filter to el iminate hum(50Hz,100Hz) and disturbance from the pilottone( 19kHz,38kH z).
Tuner AM (MW,LW )
RF Gen erator
e.g. PM53 26
e.g. 71 22 707 8900 1
To avoid atmospheric interference all AM-measurement s have to be carried out in a Faraday s cage.
Use a bandpass filter ( or at lea st a high pas s filter with 2 50Hz) to eliminate hum ( 50Hz,100Hz ).
CD
Use Au dio Signal Disc SBC429 4822 397 30184
(replac es test disc 3)
DUT
L
R
Band pass
250Hz-15kHz
DUT
e.g. 7122 707 4 8001
Bandpass
250H z-15kHz
DUT
e.g. 7 122 707 480 01
Frame aeria l
S/N and dis tortion meter
e.g. Sou nd Technolo gy ST1700B
L EVEL METE R
e.g. Sennheiser UPM550
with FF-fil ter
1-3
LF Voltmeter
e.g. PM2534
S/N and distortion meter
e.g . Sound Tech nology ST1700B
LF Voltmeter
e.g. PM2 534
S/N and distortion meter
e.g. S ound Techno logy ST1700 B
'