Service Tool; Measurement Setup; Safety; Tuner Fm/Am - Philips FR740/00 Service Manual

SERVICE TOOL
Dolby Prologic Test Disc
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4822 395 1021 6
MEASUREMENT SETUP
Tuner FM
Bandpass
DUT 250Hz-15kHz LF Voltmeter
RF Generator
e.g.
PM5326
- -
- -
- -
- -
1
+
I N and distortion meter
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Tuner AM (MW, L W)
Bandpass
LF Voltmeter
e.a. PM2534
RF Generator
D L i I ç I O C
1
d j / ~
and distortion meter
e,g. Sound Technology
ST1700B
To avoid atmospheric interference al1 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).
SAFETY
8
regdations require that the set be restored to its
original condition and that parts which are identical with
those specified be used.
Safety components are marked by the symbol
A
a
Les normes de sécurité exigent que I'appareil soit remis
à l'état üorigine et que soient utilisées les pièces de
rechange identiques à celles spécifiées.
Les composants de sécurité sont marqués
a
SAFETY
@
Veiligheidsbepalingen vereisen, dat het apparaat in zijn
oorspronkeliijke toestand wordt teruggebracht en da!
onderdelen. identiek aan de gespecificeerde, worden toegepast.
De Veiligheidsonderdelen zijn aangeduid met het symbool
A
Le norme di sicurezza estigono che I'apparecchio venga
A
a
rimesso nelle condizioni originali e che siano utilizzati i
a
pezzi di ricambiago identici a quelli specificati.
Bei jeder Reparatur sind die geltenden Sicherheitsvor-
COmponenty di sicurezza
' O n0
marcati
con
a
schriiten zu beachten. Der Originalzustand des Gerates
darf nicht veranderi werden. Für Reparaturen Sind Original-
ersatzteile zu vewenden.
Sicherheitsbauteile Sind durch daç Symbol
A
markiert.
PCS
69 733