Informações sobre o equipamento:

Kenwood TK-890 Transceiver
Fabricante:
Kenwood
Modelo: TK-890
Data: 2001
Categoria: Rádio Comunicação,
Grupo: Transceiver
Descrição: UHF FM TRANSCEIVER
Informações:
                                    GENERAL
Frequency Range ............................................
TK-890 : 450 to 490MHz (K), 480 to 512MHz (K2), 403 to
430MHz (K3)
TK-890H : 450 to 480MHz (K)
Number of Channels ......................................
160 channels
Channel Spacing
............................................. 25kHz (Wide) /
12.5kHz (Narrow)
Operating Voltage
........................................... TK-890 : 13.6V
DC± 15%, TK-890H : 13.4V DC±15% negative ground
Current Drain
.................................................. 0.6A on
standby
2.2A on receive
TK-890 : 12A, TK-890H : 28A on transmit
Duty Cycle
......................................................
Transmit 20%
Frequency Stability
......................................... ±0.0002% (–30°C to
+60°C)
Operating Temperature Range ....................... –30°C to
+60°C (–22°F to +140°F)
Dimensions & Weight ....................................
TK-890 : 7.01" (178mm) W x 2.36" (60mm) H x 7.68" (195mm) D,
5.06lbs (2.3kg)
7.01" (178mm) W x 2.36" (60mm) H x 8.98" (228mm) D, 5.72lbs
(2.6kg) with KCH-10
TK-890H : 7.01" (178mm) W x 2.36" (60mm) H x 12.88" (327mm)
D, 7.92lbs (3.6kg)
RECEIVER (Measurements made per EIA standard EIA/TIA-240-D)
Antenna Impedance ....................................... 50Ω
Sensitivity
....................................................... 12dB
SINAD : 0.25μV, 20dB Quieting : 0.35μV
Selectivity
....................................................... 85dB
(Wide) / 77dB (Narrow)
Intermodulation
.............................................. 80dB (Wide) /
75dB (Narrow)
Spurious and Image Rejection ....................... 90dB
Audio Output
.................................................. 13W at 4Ω
less than 5% distortion (12W at 4Ω less than 3% distortion)
Frequency Stability
......................................... ±0.0002% from
–30°C to +60°C
Band Spread
................................................... 20MHz
TRANSMITTER (Measurements made per EIA standard EIA-152-C)
RF Power Output ............................................
TK-890 : 40W adjustable to 5W
TK-890H : 100W (450 to 470MHz), 75W (470 to 480MHz)
adjustable to 40W
Antenna Impedance ....................................... 50Ω
Spurious Response ........................................ 80dB
Type of Emission
............................................ 16K0F3E (Wide)
/ 11K0F3E (Narrow)
FM Hum and Noise ........................................
50dB (Wide) / 44dB (Narrow)
Microphone Impedance ................................. 600Ω
Audio Distortion
.............................................. Less than 2%
at 1000Hz
Band Spread
................................................... TK-890 :
40MHz (K), 32MHz (K2), 27MHz (K3) TK-890H : 30MHz

Estes manuais estão disponíveis para os equipamentos acima:

Kenwood -- TK-890 -- Manual de serviço
O nome do arquivo: Kenwood-6898-Manual-Page-1-Picture
Tipo manual: Manual de serviço
Páginas: 97
Tamanho: 6.00 Mbytes (6290984 Bytes)
Idioma: Inglês
Revisão: Revised
Manual-ID/Number: B51-8439-10 (N) 1233
Data: Junho 2001
Qualidade: Documento eletrônico, digitalização, bem legível.
Envie data:
MD5: e62e4aa69c9174d62983ef29b8cdebb6
Downloads: 263 desde 15 Junho 2015
Informações:
This service manual applies to products with 30300001 or
subsequent serial numbers. (KCH-10 and KCH-11 are applicable to
the productions June 2001 and after.)
In terms of the products with the serial numbers earier than
30300001, refer to the TK-890/(B)/H(B) service manual as per
part No. B51-8439-00 and the TK-890(B) service manual as per
part No. B51-8457-00.

GENERAL
.........................................................................................................................
2
SYSTEM SET-UP
.............................................................................................................
4
OPERATING FEATURES
.................................................................................................
5
INSTALLATION..............................................................................................................
16
DISASSEMBLY FOR REPAIR
........................................................................................
22
CIRCUIT DESCRIPTION
.................................................................................................
26
SEMICONDUCTOR
DATA.............................................................................................
32
DESCRIPTION OF COMPONENTS
...............................................................................
36
PARTS
LIST....................................................................................................................
39
EXPLODED VIEW
..........................................................................................................
58
PACKING
........................................................................................................................
62
ADJUSTMENT
...............................................................................................................
66
TERMINAL FUNCTION
.................................................................................................
76
WIRING
..........................................................................................................................
79
PC BOARD VIEWS / CIRCUIT DIAGRAMS
DISPLAY UNIT (X54-3190-20) : KCH-10
..................................................................
81
DISPLAY UNIT (X54-3200-20) : KCH-11
..................................................................
83
CONTROL UNIT (X57-5620-XX) (B/3)
.....................................................................
89
FINAL UNIT (X57-5620-XX) (C/3) : TK-890/(B)
....................................................... 99
TX-RX UNIT (X57-5620-XX) (A/3)
.........................................................................
103
FINAL UNIT (X45-3570-10) : TK-890H(B)
..............................................................
115
BLOCK
DIAGRAM........................................................................................................
119
SPECIFICATIONS.........................................................................................................
121

SCOPE OF THIS MANUAL
This manual is intended for use by experienced technicians
familiar with similar types of commercial grade communications
equipment. It contains all required service information
for the equipment and is current as of this publication
date. Changes which may occur after publication are
covered by either Service Bulletins or Manual Revisions,
which are issued as required.
Kenwood-6898-Manual-Page-1-Picture
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