Kenwood NX-5200 Service Manual

A
1
2
3
4
5
BCDEFG
(No.RA018<Rev.002>) 2-6 2-6 (No.RA018<Rev.002>)
RF (Center Frequency) 1st IF (49.95MHz)
AF (1kHz)
D350
ANT D351
D370
C352 D371 C372 C541 Q530 R540 C511 Q500 C558 XF670 C676 Q670 C670 Q660 C660
IC702
IC902 C926 IC904
SSI
Internal Speaker
RFAMP MCF IFAMP IFAMP IC600
C927
RX PLL C932 IC905
External Speake
r
To make measurements in the AF section, connect the AC level meter.
(ANT input: –53dBm, 1kHz FM, 3kHz DEV (Wide). SP output: 500mW@8ohm Load)
C933
In the RF section, use 1000pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD.)
AF
AF (1kHz) (1kHz)
RF (Center Frequency)
INTM_M IC906 IC902 IC702 IC902
Internal MIC(Main)
ANT
INTM_S Q160 L186
Internal MIC(Sub)
R194 Q180 C183 L185 C304 IC300 C313 Q310 C322 Q320 C331 Q330 C347 C352
SSI SSI
EMC
External MIC(Main)
SMIC
To PLLIC
External MIC(Sub)
LPF
ANT
BPF BPF BPF IFIC
CODEC
f1:-121.5dBm
f1: -122.0dBm
-113.5dBm -121.5dBm -112.0dBm -105.5dBm-113.5dBm
238mVp
-p
CODEC
CODEC
VCO
Coupler
Drive Final
LPF
12.5mVrms 177.5mVrms
-13.5dBm +4.2dBm 10.2dBm 25.8dBm 37.9dBm 6W
LEVEL DIAGRAM
Pre-
Driver1
Pre-
Driver2
Receiver section
Transmitter section
f1:F2,F3,K2,K3 (Center frequency : 155MHz)
f2:E,E2 (Center frequency : 155MHz)
f2: -118.0dBm
f2:-117.5dBm
f1:-118.0dBm
f2:-117.0dBm
SW
ANT
SW
12.0mVrms

Kenwood NX-5200 Specifications

General

IP Rating	IP67
Zones	128
GPS	Yes
Bluetooth	Yes
Voltage Range	7.5V DC ±20%
Operating Temperature	-30°C to +60°C
Frequency Range	136-174 MHz
Battery Life	14 hours (Digital mode)
Digital Protocol	NXDN, DMR
Display	LCD