Kenwood NXR-800 Service Manual page 25

Uhf digital base-repeater
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Ref. No.
Part Name
D28
Diode
D29
Zener diode
D30
Diode
D31
Zener diode
D32
Diode
D33
Zener diode
D36,37
Diode
D38,39
Diode
CONTROL UNIT (X53-4140-10)
Ref. No.
Part Name
IC300,301
MOS-IC
IC302
MOS-IC
IC303
MOS-IC
IC304
MOS-IC
IC305~307
MOS-IC
IC308
MOS-IC
IC309
MOS-IC
IC312
MOS-IC
IC313
MOS-IC
IC314
ROM IC
IC315
MOS-IC
IC318~321
MOS-IC
IC323,324
Microprocessor IC DSP
IC325
Microprocessor IC MPU
IC327
MOS-IC
IC329
MOS-IC
IC330
MOS-IC
IC700
SRAM IC
IC701
MOS-IC
IC702
ROM IC
IC703
Microprocessor IC MPU
IC704
DRAM IC
IC705
MOS-IC
IC707
DRAM IC
IC708
MOS-IC
IC709
MOS-IC
IC710,711
MOS-IC
IC712,713
MOS-IC
IC714~718
MOS-IC
IC719
MOS-IC
COMPONENTS DESCRIPTION
Description
Surge protector
Surge protector
Surge protector
Surge protector
Surge protector
Surge protector
Surge protector
Diode switch
Description
Buffer
RS-485 driver/reciever
Voltage detector
Buffer
Voltage regulator
Voltage detector
CODEC
A/D converter
Inverter
Flash memory
12.288MHz PLL
Buffer
And gate
Voltage regulator
Buffer
SRAM
RTC IC
Flash memory
SDRAM
RS-232C driver/reciever
SDRAM
Voltage detector
Buffer
Nand gate
Or gate
Octal buffer
LAN IC
Ref. No.
Part Name
IC720
ROM IC
IC721
MOS-IC
IC722
MOS-IC
IC723
MOS-IC
IC724,725
MOS-IC
IC726
MOS-IC
IC727,728
MOS-IC
Q300
Transistor
Q301
Transistor
Q302
Transistor
Q303
Transistor
Q304,305
Transistor
Q307,308
Transistor
Q309
FET
Q700,702
Transistor
Q704,705
Q706
Transistor
Q707
Transistor
D300
Diode
D701
Diode
D702
Diode
RX UNIT (X55-3100-10)
Ref. No.
Part Name
IC4
MOS-IC
IC5
MOS-IC
IC6
MOS-IC
IC7
MOS-IC
IC8
MOS-IC
IC9
Bi-polar IC
IC10
Bi-polar IC
IC11
MOS-IC
IC12
MOS-IC
IC13
Bi-polar IC
IC14
Analogue IC
IC15,16
Bi-polar IC
IC17~19
Analogue IC
IC20
Analogue IC
IC22
MOS-IC
IC23
Analogue IC
IC24,25
Bi-polar IC
NXR-800
Description
EEPROM
And gate
Or gate
Nand gate
Buffer
And gate
Buffer
Reference AMP
DC switch
Power switch
Control switch
Reference AMP
Clock shift switch
Switch
Clock shift switch
Control switch
MIC switch
DC Switch
Switch
Voltage protector
Description
OP AMP
Frequency PLL
OP AMP
DDS
Buffer AMP
1/2 divider
Voltage regulator
Frequency PLL
IF system
IF system
OP AMP
Voltage regulator
Voltage regulator
OP AMP
Voltage regulator
DAC
Voltage regulator
25

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