Kenwood NXR-901 Service Manual page 25

900mhz digital base-repeater ocxo unit kxk-3 m3
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Ref. No.
Part Name
Q201
Transistor
Q202,204
Transistor
Q211
Transistor
Q214
Transistor
Q216
FET
Q501
Transistor
Q601,602
Transistor
Q603
Transistor
Q604
FET
Q605
Transistor
Q606
Transistor
Q607
FET
Q608,609
Transistor
Q610,611
FET
Q801
FET
Variable capaci-
D1~3
tance diode
D5
DIODE
D6
LED
D203
Diode
D214,215
Diode
Variable capaci-
D601
tance diode
TX unit (X56-3150-11)
Ref. No.
Part Name
IC1,2
IC
IC3
IC
IC5
IC
IC6
IC
IC7
IC
IC8
IC
IC201
IC
IC202
IC
IC203
IC
IC204
IC
IC205
IC
IC206
IC
IC207
IC
IC208
IC
IC301
IC
IC302
IC
IC303
IC
IC401
IC
IC402
IC
IC403
IC
COMPONENTS DESCRIPTION
Description
LNA
IF AMP
IF AMP
Noise AMP
DC switch
2nd Local AMP
Reference signal AMP
2nd Local AMP
Oscillator
Ripple fi lter AMP
DC switch
DC switch
2nd Local AMP
DC switch
DC switch
Frequency control
Speed-up diode
PLL indicator
Detector
Detector
Frequency control
Description
3-state buffer
OP AMP
Fractional-N PLL IC
OP AMP
Voltage regulator
OP AMP
DAC
EEPROM
OP AMP
Integer-N PLL IC
Buffer AMP
OP AMP
Digital potentiometer
OP AMP
Buffer AMP
OP AMP
Integer-N PLL IC
5.99MHz DDS IC
Buffer AMP
Voltage regulator
Ref. No.
Part Name
IC501,502
IC
IC503
IC
IC504
IC
IC505,506
IC
IC701
IC
IC702
IC
IC703
IC
IC704
IC
IC705
IC
IC707~710
IC
IC711
IC
IC810
IC
IC920~922
IC
IC923~925
IC
IC926
IC
IC960~963
IC
Q1,2
FET
Q3
Transistor
Q4
FET
Q5,6
Transistor
Q7
Transistor
Q8~10
Transistor
Q11
FET
Q13
FET
Q14~16
FET
Q201
FET
Q202
Transistor
Q203,204
FET
Q205,206
Transistor
Q301~304
FET
Q305
Transistor
Q306~311
Transistor
Q401,402
Transistor
Q403
FET
Q404
FET
Q405~407
FET
Q501
FET
Q502
FET
Q503,504
FET
Q505,506
FET
Q507
FET
Q508
FET
Q509,510
FET
Q511
Transistor
Q512
FET
NXR-901
Description
OP AMP
Frequency divider
Buffer AMP
Comparator
Shift register
Voltage reference
ADC
Temperature sensor
DAC
Voltage regulator
3-state buffer
Voltage regulator
3-state buffer
Shift register
OP AMP
Shift register
DC switch
Reference signal AMP
Oscillator
RF AMP
Ripple fi lter AMP
RF AMP
RF AMP
DC switch
DC switch
DC switch
DC switch
DC switch
Reference signal AMP
DC switch
DC switch
Reference signal AMP
Reference signal AMP
DC switch
DC switch
DC switch
DC switch
DC switch
Reference signal AMP
Reference signal AMP
DC switch
DC switch
DC switch
Reference signal AMP
DC switch
25

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