Measurement Setup - Philips CED228 Service Manual

1-3
MEASUREMENT SETUP
Tuner FM
Bandpass
2fiHz-15k11z
use
a bandpass filter to
eliminats
hum (50H2, 100H2) and disturbance from
the
pilottone
(19kHz' 38kHz)'
TunerAM
(MWLUI)
Bandpass
2soHz-'lskHz
and distortion
meter
Sou.td
Tedrmlogy
STI
7008
Frarne aerial
q.9.712.707 agml
LF
Voltmeter
e.g. Ptil2534
To
avoid atmospheric interference
all
AM+neasurernents have
to
be
canied out
in
a Faraday's cage'
u""
"
L""ap"ri
ntter (or at teasi a high pass fitterwith 25oHz)
to eliminate
hum (50H2, 100H2).
CD
Us€Audio
Signal
Disc
SBC429 4822397
30184
(replaces test disc
3)
Recorder
Use
UnivsrsalTest
Cassette
CrO2
or
Universal Test Cassette Fo
sBc419
u182239730069
sBc420 82239730071
LEVEL METER
o.g.
S6nhcisr
UPM550
wlth FF-filt6r
LEVEL METER
e.g.
Sdoheis
uPM550
with
FF-iltd
and distortion
meter
a
o o
a
o o
S/N and distortion met'
e.g. Sound
TedlmlogY
ST170
a
o o
a
o o
SN and distortion
meter
e.g. Sound
T€.tmbgy ST1700B