Kenwood NX-900 Service Manual page 25

800mhz digital transceiver
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Ref. No.
Part Name
D409
Diode
DC/DC converter (50M)
D410~412 Diode
Reverse protection, DC/DC
D501,502 Diode
Line protection
D504
Diode
Reverse current prevention (RXD)
Reverse current prevention
D506
Diode
(OR G_RXD2)
Reverse current prevention
D507
Diode
(OR RXD2)
D508
Diode
Line protetion
D509,510 Diode
Reverse current prevention
D511
Diode
Line protection (RXD2)
D512
Diode
Line protection (AID9)
D702
Diode
SQ voltage control
D703
Diode
Noise detector (SQ)
D704,705 Diode
AF detector (LIMIT)
D706
Zener diode
Line protection (DI)
D707
Zener diode
Line protection (DEO)
D901
Diode
Line protection (BER CK)
D902
Diode
Line protection (BER DT)
D903
Diode
Line protection (AUXIO1)
D904
Diode
Line protection (AUXIO2)
D905,906 Zener diode
Over DC supply protection
D907
Diode
Line protection (AUXIO3)
D908
Diode
Line protection (AUXIO4)
D909
Diode
Reverse current prevention (SB)
D910
Zener diode
Over DC supply protection
D911
Diode
Line protection (AUXIO8)
D912
Diode
Line protection (AUXIO5)
D913
Diode
Reverse current prevention (SB)
D914
Zener diode
Over DC supply protection
D915
Zener diode
Drain baias protection
D920,921 Diode
Antenna switch
Reverse current prevention
D922
Diode
(TX power DET)
D923,924 Diode
RF level protection for SAW fi lter
D925,926 Diode
Antenna switch
Variable
D927
capacitance
TX modulation
diode
COMPONENTS DESCRIPTION
Description
NX-900
25

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