Philips MC108 Service Manual page 4

SERVICE MEASUREMENT
Tuner FW
RF Generator
e.g. PM5326
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Tuner AM (MW,LW)
RF Generator
e.g. PM5326
To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday«s cage.
Use a bandpass filter (or at least a high pass filter with 250kHz) to eliminate hum (50Hz, 100Hz).
CD
Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)
DUT
L
R
Bandpass
DUT
250Hz-15kHz
e.g. 7122 707 48001
Bandpass
250Hz-15kHz
DUT
e.g. 7122 707 48001
Frame aerial
e.g. 7122 707 89001
S/N and distortion meter
e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
2 - 2
LF Voltmeter
e.g. PM2534
S/N and distortion meter
e.g. Sound Technology ST1700B
LF Voltmeter
e.g. PM2534
S/N and distortion meter
e.g. Sound Technology ST1700B
RECORDER
Use Universal Test Cassette Fe SBC420 4822 397 30071
DUT
LF Generator
e.g. PM5110
L
R
S/N and distortion meter
e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter