Motorola GM Series Informations sur les services - Page 27
Parcourez en ligne ou téléchargez le pdf Informations sur les services pour {nom_de_la_catégorie} Motorola GM Series. Motorola GM Series 34 pages. Professional radio
Également pour Motorola GM Series : Manuel d'entretien (28 pages), Manuel d'installation (36 pages)
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Troubleshooting Flow Chart for 25W Transmitter (Sheet 1 of 3)
Troubleshooting Flow Chart for 25W Transmitter (Sheet 3 of 3
2.2
Check Components
between ASFIC and
Q3441 before repla-
cing Q3441
ASFIC
YES
U0221 Pin 6
1-4V DC?
NO
Check Bias Tuning
before replacing ASFIC
U0221
Check Final PA Stage
Supply
Voltage
Bias 2 DC
0V
Voltage at
TP3406?
1-4V
NO
RF Voltage
at TP3401
>100mV?
YES
NO
RF Voltage
U3401 Pin 6
>3V?
YES
NO
RF Voltage
Q3421 Gate
>1V?
YES
RF Voltage
NO
Q3441 Gate
>4V?
YES
Check Components
between Q3441 &
Antenna Connector
)
Replace Q3441
Check FGU (U3301)
Check Components
between TP3401 &
C3417
Check Components
between C3417 &
Q3421
Check Components
between Q3421 &
Q3441
3-5