Measurement Setup - Philips FW-C115/22 Service Manual

MEASUREMENT SETUP

Tuner FM
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
Frame aerial
e.g. 7122 707 89001
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 250Hz) to eliminate hum (50Hz, 100Hz).
CD
Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)
DUT
L
R
PCS 90 113
Bandpass
DUT
250Hz-15kHz
e.g. 7122 707 48001
Bandpass
250Hz-15kHz
DUT
e.g. 7122 707 48001
S/N and distortion meter
e.g. Sound Technology ST1700B
S/N and distortion meter
e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
1-4
LF Voltmeter
e.g. PM2534
S/N and distortion meter
e.g. Sound Technology ST1700B
LF Voltmeter
e.g. PM2534
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
or Universal Test Cassette Fe
LF Generator
e.g. PM5110
SBC420 4822 397 30071
DUT
L
R
S/N and distortion meter
e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter