TS-590S Datasheet PDF - Kenwood
| Part Number | TS-590S | |
| Description | HF / 50MHz ALL MODE TRANSCEIVER SERVICE MANUAL | |
| Manufacturers | Kenwood | |
| Logo |  |
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There is a preview and TS-590S download ( pdf file ) link at the bottom of this page. Total 30 Pages | ||
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TS-590SHF / 50MHz ALL MODE TRANSCEIVER
SERVICE MANUAL
© 2010-9 PRINTED IN JAPAN
B51-8941-00 (N) 283
Phone jack (9P)
(E11-0705-15)
Key top (8key)
(K29-9466-02)
Panel
(A62-1176-02)
Front glass
(B10-2799-02)
Key top (5key)
(K29-9469-02)
Knob (RIT)
(K29-9471-03)
Knob (MULTI)
(K29-9456-23)
Foot (Front)
Key top (25key)
(J02-0442-04)x2 (K29-9467-02)
Knob (Main knob) Key top (20key) Knob (Inside/HI)
(K21-1107-13)
(K29-9468-02) (K29-9477-03)
Knob (Outside/SQL,RF)
(K29-9391-13)x2
RF coaxial receptacle (Round)
(E06-0858-25)
Foot (Front)
(J02-0440-04)
Knob (Outside/LO) Knob (Inside/NOTCH,AF)
(K29-9478-03)
(K29-9390-03)x2
RF coaxial receptacle (M)
(E04-0167-15)x2
Lead wire with connector (EXT.AT) Lead wire with terminal
(E37-0891-25)
(E37-1480-05)
Sub socket (D)
(E58-0529-05)
3.5D phone
jack (3P)
(E11-0414-15)
DIN socket
(E06-0752-15)
Phone jack (9P)
(E11-0705-15)
Foot (Back)
(J02-0475-05)x2
Rectangular receptacle DIN socket
3.5D phone jack (3P) Pin jack
(E58-0537-05)
(E56-0408-15) (E11-0455-05)
(E13-0166-25)x2
This product complies with the RoHS directive for the European market.
This product uses Lead Free solder.
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CIRCUIT DESCRIPTION
TS-590S
Frequency Configuration
Figure 1 shows the frequency configuration of this trans-
ceiver.
While transmitting, FM mode operates in a double con-
version and other modes (AM, SSB, CW, FSK) operate in a
triple conversion.
While receiving, the first IF operates in 73.095MHz triple
conversion. In modes other than FM, the third IF is 24kHz,
and the IF signal is converted by an A/D converter and input
into DSP. The FM mode is detected in the FM IC, and the
audio signal is converted by an A/D converter and input into
the DSP. Under the following conditions, the first IF oper-
ates its reception in 11.374MHz double conversion.
1) Modes other than AM or FM
2) Amateur band within the 1.8/3.5/7/14/21MHz bands
3) DSP filter’s bandwidth is 2.7kHz or lower
RX-1
ANT
RX MIX 11.374MHz
IFB 1st IF
RX MIX
RX-2
TX MIX
73.095MHz
1st IF
IFA
TX/RX
MIX
PLL
AD4111
455kHz
3rd IF
10.695MHz
2nd IF
FM
FM IC AF
NJM2591
TX
MIX
except RX MIX
FM
24kHz
24kHz
ADC
DAC
x2
VCO
x2
FM MOD
DSP
DAC AF OUT
ADC MIC IN
DDS
AD9951
DDS
AD9835
x2
X502
15.6MHz
Fig. 1 Frequency configuration
Reference Signal Generator
The reference frequency (fstd), which is used to control
the individual LO frequencies, oscillates at 15.6MHz in a
crystal oscillation circuit (X502, Q501). This 15.6MHz signal
passes through a buffer (Q502) and is doubled in a multiplier
(Q503) to generate a 31.2MHz signal. The 31.2MHz signal is
used as a reference signal for LO3 (the third local oscillator)
DDS (IC601). The 31.2MHz signal is doubled in multipliers
(Q504, Q505) to generate a 62.4MHz signal. The 62.4MHz
signal is used as a reference signal for LO1 (the first local
oscillator) PLL (IC801).
The SO-3 (TCXO unit: 15.6MHz) is configured as an op-
tion in this transceiver, so that you can replace the crystal
oscillation circuit (X502, Q501) with the SO-3. When using
the SO-3, remove the CN903 and CN904 short jumper wires
in order to stop the operation of the crystal oscillation circuit
(X502, Q501).
LO1/ LO2/ LO3
■ LO1 (the first local oscillator)
The VCO (Q806) oscillates at 196.8MHz. Only the double
frequency component, 393.6MHz, of this VCO’s oscilla-
tion output is extracted and input into PLL (IC801) pin 6.
This input signal is divided into 1/N within the PLL. Also,
the 62.4MHz signal (15.6MHz reference frequency x 4) is
input into PLL pin 8 and divided into 1/R within the PLL. By
a phase comparator in the PLL, the frequency divided into
1/N and the frequency divided into 1/R are compared, and
then the frequency is locked. The comparison frequency (fø)
at this time is 120kHz when transmitting FM, and 2.4MHz
otherwise.
393.6MHz signal locked by PLL (IC801) would be used
as reference by DDS (IC803). The output signal from DDS
(IC803) is 12.495MHz to 32.195MHz when RX-1 path is
selected, amplified at the broad band amplifier (IC804),
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TS-590S electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ TS-590S.PDF Datasheet ] | |
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