Kenwood TS-590-S Service Manual
HF / 50MHz ALL MODE TRANSCEIVER
TS-590S
SERVICE MANUAL
© 2010-9 PRINTED IN JA PAN
B51-8941-00 (N) 283
Phone jack (9P)
(E11-0705-15)
Key top (8key)
(K29-9466-02)
Foot (Front)
(J02-0442-04)x2
RF coaxial receptacle (Round)
(E06-0858-25)
RF coaxial receptacle (M)
(E04-0167-15)x2
Key top (25key)
(K29-9467-02)
Panel
(A62-1176-02)
Knob (Main knob)
(K21-1107-13)
Foot (Front)
(J02-0440-04)
Front glass
(B10-2799-02)
Key top (20key)
(K29-9468-02)
Knob (Outside/LO)
(K29-9478-03)
Lead wire with connector (EXT.AT)
(E37-0891-25)
Key top (5key)
(K29-9469-02)
Knob (RIT)
(K29-9471-03)
Knob (Inside/HI)
(K29-9477-03)
Knob (Inside/NOTCH,AF)
(K29-9390-03)x2
Lead wire with terminal
(E37-1480-05)
Knob (MULTI)
(K29-9456-23)
Knob (Outside/SQL,RF)
(K29-9391-13)x2
Sub socket (D)
(E58-0529-05)
Rectangular receptacle
(E58-0537-05)
This product complies with the
3.5D phone
jack (3P)
(E11-0414-15)
DIN socket
(E56-0408-15)
directive for the European market.
RoHS
DIN socket
(E06-0752-15)
3.5D phone jack (3P)
(E11-0455-05)
Phone jack (9P)
(E11-0705-15)
Foot (Back)
(J02-0475-05)x2
Pin jack
(E13-0166-25)x2
This product uses Lead Free solder.
TS-590S
DISASSEMBLY FOR REPAIR ................................................... 3
CIRCUIT DESCRIPTION ........................................................... 5
COMPONENTS DESCRIPTION .............................................. 20
SEMICONDUCTOR DATA ...................................................... 27
PARTS LIST ............................................................................ 34
EXPLODED VIEW ................................................................... 63
PACKING ................................................................................. 66
ADJUSTMENT ....................................................................... 67
TERMINAL FUNCTION .......................................................... 81
PC BOARD
FINAL UNIT (X45-391X-XX) ............................................... 88
CONTROL UNIT (X53-446X-XX) (A/3) .............................. 92
CONTROL UNIT (X53-446X-XX) (B,C/3) ........................... 96
CONTENTS
DISPLAY UNIT (X54-3700-00) .......................................... 100
TX-RX UNIT (X57-785X-XX) ............................................ 104
INTERCONNECTION DIAGRAM ......................................... 108
SCHEMATIC DIAGRAM ....................................................... 110
BLOCK DIAGRAM ................................................................ 136
LEVEL DIAGRAM ................................................................. 138
OPTIONAL ACCESSORIES
PS-60 (DC Power Supply) ................................................ 140
ARCP-590 (Radio Control Program) ............................... 140
ARHP-590 (Radio Host Program) .................................... 140
ARUA-10 (USB Audio Controller) ................................... 140
SPECIFICATIONS ................................................................. 141
Document Copyrights
Copyright 2010 by Kenwood Corporation. All rights re-
served.
No part of this manual may be reproduced, translated,
distributed, or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise, for any purpose without the prior written permission
of Kenwood.
2
Disclaimer
While every precaution has been taken in the preparation
of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained
herein. Kenwood reserves the right to make changes to any
products herein at any time for improvement purposes.
DISASSEMBLY FOR REPAIR
TS-590S
Removing the torque changeover lever (G02-1858-03)
1. Insert the tip of a fl at-head screwdriver (or other implement) under the tab of the torque changeover lever, then
lift the tab using the tip of the fl at-head screwdriver. (q)
Caution: Be careful not to damage the panel when lifting
it.
2. Turn the lever section of the torque changeover lever to
the right, as in the position described in step 1. (w)
:
@
3. Lift the torque changeover lever and remove it from the
panel. (e)
Mounting the torque changeover lever (G02-1858-03)
1. Insert the torque changeover lever by aligning the three
tabs of the panel. (q)
:
2. Slightly turn the lever section of the torque changeover
lever to the left (e) while pressing the surface near the
tab at the lower right of the torque changeover lever (w).
Caution: Confirm that the torque changeover lever is
caught by the lower right tab of the panel.
3. Turn the lever section of the torque changeover lever to
the left (t) while pressing the surface near the tab at
the upper right of the torque changeover lever (r), then
mount it onto the panel.
.
;
@
=
.
Procedures when Replacing the Diode (1SR139-400) for hand mounting
1. When replacing the diode (D304: 1SR139-400) used by
the Control unit (A/3) (PCB number: J79-0279-09), cut
the leg of a new diode.
5mm
(0.2 inches)
Cathode band (Green)
2mm
(0.08 inches)
3
TS-590S
DISASSEMBLY FOR REPAIR
2. Bend the leg of the diode as shown in the fi gure.
3. Solder the diode between Q61 (Collector) and the solder
pad (Base) of the Control unit (A/3), as shown in the fi gure.
Note:
1) Confi rm the direction of the cathode band when installing the diode.
2) Install the diode so that it is positioned on the dotted
line.
3) Install the diode so that its height from the surface of the
PCB is 4mm (0.16 inches) or less (Height of rubber sheet
(G11-4536-04): 4mm (0.16 inches)).
Install the diode so that it is positioned
on the dotted line.
Control unit (A/3)
Transistor (Q61)
Diode (D304)
Cathode band
Coaxial cable
(E37-1495-05)
Coaxial cable
(E37-1496-05)
Separate the two
coaxial cables
Flat cable
(E37-1492-05)
Push the flat cables into
the gap of the chassis
Flat cable
(E37-1491-05)
Caution for Replacing the LED (B30-2322-05, B30-2323-05)
When replacing the “B30-2322-05” or “B30-2323-05”
LED used by the Display unit (A/6), order and replace the
LED for service into which the rank is divided according to
brightness, according to the following procedures, so that
the brightness of the LED backlight remains uniform after
replacing the LED.
4mm
(0.16 inches)
below
4mm
(0.16 inches)
Rubber sheet
(G11-4536-04)
Diode
Precautions for Reassembly
Perform the following steps when assembling the bottom
side of the transceiver.
1. Separate the two coaxial cables (E37-1495-05, E37-1496-
05) as shown in the fi gure.
2. Push the two fl at cables (E37-1491-05, E37-1492-05) into
the gap of the chassis so they do not come into contact
with the cabinet.
4
1. Confi rm whether the “A” or “Z” stamp is pushed on the
foil side of Display unit (A/6).
Confirm whether stamp
“A” is pushed.
Confirm whether stamp
“Z” is pushed.
Display unit (A/6)
Foil side
2. Order and replace the LED for service as shown in the
following table according to whether stamp “A” or “Z”
exists or not.
Service LED part number for
B30-2322-05 (Amber)
Stamp “A”
exists
W05-1636-00
(High brightness)
Stamp “A”
does not exist
W05-1637-00
(Low and medium
brightness)
Service LED part number for
B30-2323-05 (Green)
Stamp “Z”
exists
W05-1638-00
(High brightness)
Stamp “Z” does
not exist
W05-1639-00
(Low and medium
brightness)
CIRCUIT DESCRIPTION
Frequency Confi guration
Figure 1 shows the frequency confi guration of this trans-
ceiver.
While transmitting, FM mode operates in a double conversion and other modes (AM, SSB, CW, FSK) operate in a
triple conversion.
While receiving, the fi rst 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
TS-590S
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 fi rst IF operates 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 fi lter’s bandwidth is 2.7kHz or lower
ANT
RX-1
RX-2
TX MIX
RX MIX
x2
RX MIX
DDS
AD9951
11.374MHz
IFB
73.095MHz
IFA
1st IF
1st IF
AD4111
PLL
VCO
X502
15.6MHz
455kHz
TX/RX
MIX
x2
x2
10.695MHz
2nd IF
TX
MIX
FM
except
FM
3rd IF
FM IC
NJM2591
RX MIX
DDS
AD9835
Fig. 1 Frequency confi guration
24kHz
24kHz
FM MOD
AF
ADC
DAC
DSP
DAC
ADC
AF OUT
MIC IN
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 fi rst local
oscillator) PLL (IC801).
The SO-3 (TCXO unit: 15.6MHz) is confi gured as an option 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 fi rst local oscillator)
■
The VCO (Q806) oscillates at 196.8MHz. Only the double
frequency component, 393.6MHz, of this VCO’s oscillation 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
TS-590S
CIRCUIT DESCRIPTION
and then goes through BPF and is output as LO1. When
RX-2 path is selected or when transmitting, 36.5625MHz to
66.5475MHz is output, amplifi ed by the broad band amplifi er (IC804), and then doubled in the multiplier (D652), goes
through BPF, and is output as 73.120MHz to 133.095MHz
LO1.
LO2 (the second local oscillator)
■
The reference oscillating circuit’s output signal 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 also used as the DDS (IC601)’s reference
D659
D652
Q808
Buffer
X502,Q501
15.6MHz
IC803
DDS
Q502
LPF
Q503
IC804
AMP
Q504,Q505
D651
Doubler
Q506
frequency, and therefore its resistance is divided. Then, the
31.2MHz signal is doubled in multipliers (Q504, Q505) to
generate a 62.4MHz signal.
The 62.4MHz signal’s high harmonic is cut in the BPF
and the signal is amplifi ed in the amplifi er (Q506) to generate LO2. If IFB is selected, the diode switch (D501) cuts the
LO2 output.
LO3 (the third local oscillator)
■
The LO3 used in the modulator and the detector is generated in the DDS (IC601). The DDS output signal passes
through the buffer (Q602) and LPF to generate LO3.
BPF
D680 D681
BPF
BPF
D679
D662
D671
D670
IC801
PLL
LPF
D653
D657
L651
Q801
Buffer
D501
HPF
Q663
AMP
D655 D660
D669
D654
LPF
Q806
VCO
Q804
Buffer
LPF
LPF
LPF
LPF
BPF
D667
D663
D661
D668
BPF
FM MOD
LO1
LO2
Option
SO-3
Buffer
Doubler
Q601
Buffer
BufferDoubler
IC601
DDS
Q602
Buffer
LPF
LO3
Fig. 2 Reference signal generator, LO1/ LO2/ LO3
6
TS-590S
CIRCUIT DESCRIPTION
IF=73M
●
Frequency: 0.03~60MHz
HF TX/RX
LO1
Filter offset 1 +1.5k +1.5k –1.5k –1.5k 000000
RIT (Δ RIT) - (Δ RIT) - (Δ RIT) - (Δ RIT) - (Δ RIT) -
XIT - (Δ XIT) - (Δ XIT) - (Δ XIT) - (Δ XIT) - (Δ XIT)
CAR correction IF10M_2.7k
HF TX/RX
LO1
Filter offset 1 0 0 –(SHIFT/2) –(SHIFT/2) –(SHIFT/2) –(SHIFT/2) 0000
RIT (Δ RIT) - (Δ RIT) - (Δ RIT) - (Δ RIT) - (Δ RIT) -
XIT - (Δ XIT) - (Δ XIT) - (Δ XIT) - (Δ XIT) - (Δ XIT)
CAR correction IF10M_2.7k
USB LSB CW CW-R CWN
RX TX RX TX RX TX RX TX RX TX
+(CAR1) +(CAR1) –(CAR1) –(CAR1) +(CAR1) +(CAR1) +(CAR1) +(CAR1) - -
CWN-R FSK FSK-R AM FM
RX TX RX TX RX TX RX TX RX TX
----------
DDS AD9951 (DEN1)
DDS AD9951 (DEN1)
IF=11M
●
Frequency: 0.03~21.5MHz (Amateur bands within 1.8/3.5/7/14/21MHz band only)
HF TX/RX
LO1
Filter offset 1 +1.5k –1.5k 0 0 0 0 –(SHIFT/2) –(SHIFT/2)
RIT (Δ RIT) (Δ RIT) (Δ RIT) (Δ RIT) (Δ RIT) (Δ RIT) (Δ RIT) (Δ RIT)
CAR
correction
(Δ RIT): RIT frequency variable amount (–9.99~+9.99kHz)
(Δ XIT): XIT frequency variable amount (–9.99~+9.99kHz)
(SHIFT): FSK shift width frequency (170Hz, 200Hz, 425Hz, 850Hz, Initial value:170Hz)
CAR correction: SSB IF-Filter adjustment volume. 0 when using Narrow option fi lter.
(CAR1): IF 10.695MHz, SSB Normal fi lter compensation value
(CAR2): IF 11.374MHz, Normal fi lter compensation value
(CAR3): IF 11.374MHz, Narrow fi lter compensation value
IF11M_2.7k +(CAR2) –(CAR2) +(CAR2) +(CAR2) - - - -
IF11M_500 +(CAR3) –(CAR3) +(CAR3) +(CAR3) - - - -
USB LSB CW CW-R CWN CWN-R FSK FSK-R
RX RX RX RX RX RX RX RX
DDS AD9951 (DEN1)
Table 1-1 LO1 frequency shift data
7
TS-590S
CIRCUIT DESCRIPTION
USB LSB CW CW-R CWN
LO3
RX<21.3M,
21.5≤RX
Filter offset 1 –46.5k +1.5k –46.5k –46.5k –1.5k –1.5k 000000
CW pitch - ----------
FSK tone - ----------
CAR cor-
rection
CAR cor-
rection
CAR correction: SSB IF-Filter adjustment volume. 0 when using Narrow option fi lter.
(CAR1): IF 10.695MHz, SSB Normal fi lter compensation value
(CAR2): IF 11.374MHz, Normal fi lter compensation value
(CAR3): IF 11.374MHz, Narrow fi lter compensation value
IF10M_2.7k +(CAR1) +(CAR1) –(CAR1) –(CAR1) +(CAR1) +(CAR1) +(CAR1) +(CAR1) - -
IF11M_2.7k +(CAR2) +(CAR2) –(CAR2) +(CAR2) +(CAR2) - -
IF11M_500 +(CAR3) +(CAR3) –(CAR3) +(CAR3) +(CAR3) - -
LO3
RX TX RX TX RX TX RX TX RX TX
Filter offset 1 0 0 00000000
CW pitch - - --------
FSK tone - - --------
IF10M_2.7k - - --------
IF11M_2.7k - - --------
IF11M_500 - - --------
RX
IF73M
21.3≤RX,
RX<21.5
CWN-R FSK FSK-R AM FM
IF11M
TX RX TX RX TX RX TX RX TX
DDS AD9835 (DEN2)
DDS AD9835 (DEN2)
Table 1-2 LO3 frequency shift data
Receiver Circuit
In an amateur frequency band or mode that requires antiproximate interference, the receive signal passes through
the double conversion RX-1 path, and in other frequency
bands and modes, it passes through the triple conversion
RX-2 path. (Refer to table 2)
Mode SSB CW FSK AM FM
RX-1
path
RX-2
path
Table 2
Conversion
method
IF fre-
quency
Conversion
IF fre-
quency
1st 11.374MHz -
2nd 24kHz -
method
1st 73.095MHz
2nd 10.695MHz
3rd 24kHz 455kHz
Mode, conversion method, and IF frequency
Double -
Triple
From the antenna terminal to the preamplifi er (Q236)
■
The receive signal from the antenna terminals (ANT1/
ANT2) passes through the antenna changeover relay (K44)
in the Final unit (X45-391 A/2), the antenna tuner’s IN/
THROUGH changeover relay (K45), the transmission/reception changeover relay (K46), and an image fi lter, and is sent
from CN51 to the TX-RX unit (X57-785 A/2)’s CN100 (RAT)
through a co-axial cable.
The signal input into the TX-RX unit passes through the
RX ANT changeover relay (K101) and enters the attenuator circuit (ATT) which is approximately 12dB. This can be
switched to approximately 20dB by removing the CN101
short jumper. Then, the signal passes through LPF for IF
trap, the surge absorption limiter, and the BC band attenuating circuit (removes 30kHz to 1.705MHz), and enters the
BPF. In the BC band attenuating circuit, in order to avoid
interference by high-output broadcasting stations, 11.7MHz
and 15.5MHz trap circuit is inserted into E type only.
8
CIRCUIT DESCRIPTION
TS-590S
The BPF divides in the range as shown in table 3. The
BC band’s BPF includes ATT for avoiding cross-modulation by medium wave band high-output station (ATT ON:
CN102=open, CN103=short, ATT OFF: CN102=short,
CN103=open). The transmit signal also passes through the
BPF when transmitting.
The preamplifier (Q236) receives the signal passed
through the BPF. In this model, it is an emitter grounding
circuit which uses a bipolar transistor. Q239 switches the
emitter’s returning amount to adjust the gain. Approximately
20dB is gained in 21.5 to 60MHz and approximately 12dB in
other frequencies. The preamplifi er circuit can be passed by
turning off the PRE display with the preamplifi er key.
X57-785 (A/2)X45-391 (A/2)
ANT1 ANT2
RX ANT
Band Filter range
135kHz 30~522kHz
BC 522kHz~1.705MHz
1.8MHz 1.705~2.5MHz
3.5MHz 2.5~4.1MHz
5MHz 4.1~6.9MHz
7MHz 6.9~7.5MHz
10MHz
14MHz
21MHz
28MHz 21.5~30.0MHz
50MHz (TX) 49.0~54.0MHz
50MHz (RX) 30.0~60.0MHz
7.5~10.5MHz
10.5~13.9MHz
13.9~14.5MHz
14.5~21.5MHz18MHz
Table 3 BPF range
AT
BC TRAP
(EU TRAP)
RX
TX
TX
signal
LPF
30kHz~
522kHz
LPF
522kHz~
1.705MHz
BPF
BPF
ATT
–12dB
(–20dB)
ATT
ATT
ATT
1.705~60MHz
x11
LPF
~60MHz
PRE OFF
Q236
PRE AMP
Fig. 3 From antenna terminal to preamplifi er (Q236)
to 1st Mixer
9
TS-590S
CIRCUIT DESCRIPTION
From the preamplifi er (Q236) to the second IF
■
frequency (10.695MHz/11.374MHz)
The signal from the preamplifier (Q236) output to the
second IF amplifier 1 (Q451) is spread into 2 paths: RX-1
and RX-2, depending on the frequency band (refer to table
4). The RX-1 path is selected when the “L” signal is added
to Q273, and the RX-2 path is selected if the “H” signal is
added.
The RX-1 path signal passes through the LPF for IF trap,
is integrated with LO1 (12.495 to 32.195MHz) in the quadbalance fi rst mixer (Q263 to Q266), and is then converted to
the fi rst IF (11.374MHz). The fi rst IF signal passes through
the 2-pole MCF (XF301) and enters the second IF amplifi er
1 (Q451).
The RX-2 path signal passes through the LPF for IF trap,
is integrated with LO1 (73.120 to 133.095MHz) in the quadbalance fi rst mixer (Q321 to Q324), and is then converted to
the fi rst IF (73.095MHz). The fi rst IF signal passes through
the 2-pole MCF (XF371), and by the trans-feedback type
NFB (negative feedback) fi rst IF amplifi er (Q391), is amplifi ed by approximately 12dB. The amplifi ed signal is mixed
with LO2 (62.4MHz) in the second mixer (D422, D423), converted to the second IF (10.695MHz), and then enters the
second IF amplifi er 1 (Q451). The second mixer is a passive
type that uses a diode, and is a bilateral circuit that converts
both receive signal's frequency at the time of reception and
transmission signal's frequency at the time of transmission.
The second IF signal that passed through the RX-1 or
RX-2 path is amplifi ed by approximately 13dB in the second
IF amplifi er 1 (Q451), and is then divided into 2 paths: the
NB (noise blanker) circuit and the blanking circuit (D461 to
D464). Blanking is carried out by D461 to D464.
Then, the second IF signal passes through the IF fi lter.
One of 5 fi lters is selected, depending on the frequency and
the mode (refer to table 5).
The second IF signal that passed through the IF filter
enters the AGC circuit (diode ATT circuit: D522 to D524).
The AGC voltage output from the DSP is added to D522
to D524, the change of AGC voltage changes the current
on the pin diode and controls the attenuation of the signal
passing through. And, the second IF amplifi er 2 (Q541) and
the second IF amplifi er 3 (Q521, Q522) altogether amplify
by the total of approximately 32dB, and the signal passes
through the simplified diode ATT circuit (D525). The voltage determined in the adjustment mode is added to D525,
and adjusts the difference of the total gains of the RX-1 and
RX-2 paths.
IF
frequency
10.695MHz
11.374MHz
IF fi lter
15kHz
6kHz
2.7kHz
2.7kHz
500Hz
FM AM SSB FSK CW
✔✔
Mode
✔✔
✔✔✔
✔✔✔
✔✔✔
Table 5 Selecting an IF fi lter
Band BPF selection classifi cation IF switching frequency criteria
135kHz f <522kHz f <522kHz
BC 0.522≤ f <1.705MHz 0.522≤ f <1.705MHz 73M RX-2
1.8MHz 1.705≤ f <2.50MHz
3.5MHz 2.50≤ f <4.10MHz
5MHz 4.10≤ f <6.90MHz 4.10≤ f <6.90MHz 73M RX-2
7MHz 6.90≤ f <7.50MHz 6.90≤ f <7.50MHz 11M RX-1
10MHz
14MHz
18MHz
21MHz 20.9≤ f <21.5MHz 11M RX-1
28MHz 21.5≤ f <30.0MHz 21.5≤ f <30.0MHz 73M RX-2
50MHz (TX) 49.0≤ f <54.0MHz 49.0≤ f <54.0MHz - -
50MHz (RX) 30.0≤ f <60.0MHz 30.0≤ f <60.0MHz - 73M RX-2
7.50≤ f <10.5MHz 7.50≤ f <10.5MHz 73M RX-2
10.5≤ f <13.9MHz 10.5≤ f <13.9MHz 73M RX-2
13.9≤ f <14.5MHz 13.9≤ f <14.5MHz 11M RX-1
14.5≤ f <21.5MHz
1.705≤ f <2.10MHz 11M RX-1
2.10≤ f <3.40MHz 73M RX-2
3.40≤ f <4.10MHz 11M RX-1
14.5≤ f
20.9MHz 73M RX-2
<
TX IF RX IF
73M
IF frequency
73M RX-2
Table 4 Criteria for selecting the RX-1 or RX-2 path
10
CIRCUIT DESCRIPTION
TS-590S
from Pre Amp
(Q236)
IF input
(10.695M)
IF input
(11.374M)
LO1
D443
D441
RX-1
RX-2
Q281,Q282
LO1 Amp1
D461~D464
Blanking
Q451
2nd IF Amp1
LPF
+
11.374M
NOTCH
LPF
~60MHz
Q263~Q266
1st Mixer
Q321~Q324
1st Mixer
D471
11.374MHz
TX
Q351,Q352
LO1 Amp2
73.125~133.095MHz13.174~32.195MHz
XF472
10.695M 15k
XF471
10.695M 6k
XF473
XF301
MCF
XF371
73.095MHz
MCF
D476
D475D474
D477D472
Q391
1st IF Amp
TX TX
D522~D524
ATT
AGCV
D422,D423
2nd Mixer
LO2
62.4MHz
Q521,Q522
2nd IF Amp3
Q541
2nd IF Amp2
11.374MHz
10.695MHz
to 2nd IF Amp1
(Q451)
Q431
LO2 Amp
D525
ATT
IF output
(10.695M/11.374M)
IFGC
10.695M 2.7k
XF474
D477D472
11.374M 2.7k
XF475
D478D473
11.374M 500
Fig. 4 From the preamplifi er (Q236) to the second IF frequency (10.695MHz/11.374MHz)
From the second IF to the AF output
■
The signal that passed through D525 then goes through
D526 and enters the FM wave detecting IC (IC591) in FM
mode, and the AM/SSB/CW/FSK wave detecting mixer
(D551, D552) in other modes.
The FM mode signal is mixed with LO3 (10.240MHz) in
the FM detecting IC (IC591), and converted into the third
IF (455kHz). The third IF signal passes through the ceramic
fi lter (CF591), demodulated into audio signals, and is then
amplifi ed by the FM AF amplifi er (IC592).
Signals of modes other than FM are mixed with LO3 (RX-1
path: 11.398MHz, RX-2 path: 10.719MHz) in the AM/SSB/
CW/FSK wave detecting mixer (D551, D552), are converted
into the third IF (24kHz), and are then amplifi ed by the third
IF amplifi er (Q551).
Signals of FM mode and modes other than FM are sent
from the TX-RX unit (X57-785 A/2) RIF connector (CN600) to
the Control unit (X53-446 A/3)’s CN61.
The signal input into the Control unit (X53-446 A/3) is amplifi ed in the operation amplifi er (IC64, IC65), A/D conversion
is carried out by the A/D converter (IC66), and then the DSP
(IC301) fi ltering, volume control, subtone decoding, etc. are
carried out. The output signal from the DSP is converted by
the D/A converter (IC72), amplifi ed as an audio signal in the
AF power amplifi er (IC67), and is then sent from the Control
unit (X53-446 A/3) AF connector (CN65) to the TX-RX unit
(X57-785 A/2) CN3, and output to the PHONES jack (J951)
(fi rst priority), EXT.SP jack (J1) (second priority), or internal
speaker (third priority).
11
TS-590S
CIRCUIT DESCRIPTION
(10.695M/11.374M)
Headphone (first priority)
Ext. Speaker (second priority)
Int. Speaker (third priority)
IF input
SSB, CW, AM
FM
(AM)
SSB, CW, AM
(24kHz)
(X54-370 F/6)
(X57-785 A/2)
(X45-391 A/2)
FM
D526
Switching
X57-785 (A/2) X53-446 (A/3)
IC631
Multiplexer
AF
IC591
FM IC
CF591
455kHz BPF
BW: 12kHz
Option Filter
BW: 9kHz
D551,D552
RX 3rd Mixer
IC67
AF Power
Amp
RIF
IC64(B/2)
Active LPF
Q62
AF Mute
AMU
IC592
FM AF Amp
Q551
IF Amp
IC64(A/2)
Buffer
IC69
(A/2)
Active LPF
FM
(AF)
SSB, CW,AM
(24kHz)
IC65(A/2)
Active LPF
IC65(B/2)
Active LPF
IC71
IC69
(B/2)
(B/2)
IC66
A/D
Conv.
IC301
DSP
IC72
D/A
Conv.
Fig. 5 From second IF to AF output
First Mixer
There are 2 types of first mixers: for IF frequency
11.374MHz RX-1 path, and for IF frequency 73.095MHz
RX-2 path.
The fi rst mixer for the RX-1 path is a quad-balance type
mixer by MOS FET (Q263 to Q266), and mixes with LO1
(12.495 to 32.195MHz) which is approximately +18dBm,
and converts into the fi rst IF (11.374MHz). Approximately
2.6V bias is added to LO1 in order to suppress distortion.
The fi rst mixer for the RX-2 path is a quad-balance type
mixer by MOS FET (Q321 to Q324), and mixes with LO1
Q263 Q265
L261
RF
12.495~32.195MHz
VR261
LO
Q264 Q266
L262
(73.120 to 133.095MHz) which is approximately +18dBm,
and converts into the fi rst IF (73.095MHz). No bias is added
to this LO1.
The volume resistance (VR261, VR321) within the fi rst
mixer circuit is used to adjust mixer balance. After replacing the MOS FET (Q263~Q266, Q321~Q324), transformer
(L261, L262, L264, L323, L324, L326), volume resistance
(VR261, VR321), or TX-RX unit (X57-785 A/2), adjust the
mixer balance in the adjustment mode.
+14V
L264
1st IF
11.374MHz
12
+2.6V
Fig. 6 First mixer circuit of the RX-1 path
CIRCUIT DESCRIPTION
TS-590S
Q321 Q323
L323
RF
73.120~133.095MHz
VR321
LO
Q322 Q324
L324
Fig. 7 First mixer circuit of the RX-2 path
MCF Adjustment
There are 2 types of MCFs: for IF frequency 11.374MHz
RX-1 path, and for IF frequency 73.095MHz RX-2 path.
The RX-1 path MCF (XF301) is a fi lter which consists of
a 2-pole MCF, whose center frequency is 11.374MHz and
passband width is 6kHz. Since the XF301 terminal impedance is 1kΩ, the impedance is converted using variable coils
(L301, L302).
The MCF can be adjusted by connecting a tracking generator to the MCF adjustment connector (CN301, CN302),
and then rotating the variable coil (L301, L302). After replacing the MCF (XF301), variable coil (L301, L302), or TX-RX
unit (X57-785 A/2), adjust the MCF in the adjustment mode.
+14V
L326
1st IF
73.095MHz
The RX-2 path MCF (XF371) is a fi lter which consists of
a 2-pole MCF, whose center frequency is 73.095MHz and
passband width is 15kHz. Since the XF371 terminal impedance is 2.5kΩ, the impedance is converted using variable
coils (L326, L374, L375, L376).
The MCF can be adjusted by connecting a tracking generator to the MCF adjustment connector (CN303, CN304),
and then rotating the variable coil (L326, L374, L375, L376).
After replacing the MCF (XF371), variable coil (L326, L374,
L375, L376), or TX-RX unit (X57-785 A/2), adjust the MCF in
the adjustment mode.
from 1st Mixer
73.095MHz
Tune connector Tune connector
CN301
from 1st Mixer
11.374MHz
Tune connector Tune connector
+8V
Fig. 8 RX-1 path MCF circuit
CN303
L375
Fig. 9 RX-2 path MCF circuit
CN302
L302XF301L301
L376XF371L374L326
+8V
to 2nd IF Amp1
11.374MHz
1st IF Amp1
12dB
CN304
to 2nd Mixer
73.095MHz
13
TS-590S
CIRCUIT DESCRIPTION
IF Filter
The IF fi lter includes a DSP digital fi lter as well as multiple analog fi lters in the IF stage to have suffi cient tolerance
for unnecessary signals.
In the RX-1 path with enhanced anti-proximate interference, the MCF (XF301) and crystal fi lter (XF474, XF475) are
Item XF301: L71-0656-15 XF474: L71-0657-05 XF475: L71-0658-05
Nominal center frequency 11.374MHz 11.374MHz 11.374MHz
Pass bandwidth ±3kHz or more at 6dB ±1.35kHz or more at 6dB ±250Hz or more at 6dB
Attenuation bandwidth ±17.5kHz or less at 60dB ±4kHz or less at 60dB ±0.75kHz or less at 60dB
Ripple 1dB or less 2dB or less 2dB or less
Insertion loss 3dB or less 6dB or less Within 6±3dB
Guaranteed attenuation 70dB or more at fo±1MHz 80dB or more at fo±1MHz 80dB or more at fo±1MHz
Center frequency deviation
Terminating impedance 1kΩ // 6pF 900Ω // 9pF 100Ω // 90pF
±500Hz at 6dB ±150Hz at 6dB ±150Hz at 6dB
inserted for the fi rst IF (11.374MHz). In the RX-2 path, MCF
(XF371) for the fi rst IF (73.095MHz), a crystal fi lter (XF473)
or MCF (XF471, XF472) for the second IF (10.695MHz), and
a ceramic fi lter (CF591) for the third IF (455kHz: FM only).
Item XF371: L71-0605-05 XF472: L71-0230-15 XF471: L71-0664-05 XF473: L71-0569-15
Nominal center frequency 73.095MHz 10.695MHz 10.695MHz 10.695MHz
Pass bandwidth ±7.5kHz or more at 3dB ±7.5kHz or more at 3dB ±3kHz or more at 6dB ±1.35kHz or more at 6dB
Attenuation bandwidth ±35kHz or less at 40dB ±25kHz or less at 18dB ±40kHz or less at 60dB ±300kHz or less at 60dB
Ripple 1dB or less 0.5dB or less 2dB or less 2dB or less
Insertion loss 3dB or less 2dB or less 3dB or less 6dB or less
70dB or more at
Guaranteed attenuation
Center frequency deviation
Terminating impedance 2.5kΩ // –0.5pF 3kΩ // 2pF 1.2kΩ // 6pF 1.2kΩ // 7pF
Item CF591: L72-0998-05
Nominal center frequency 455kHz
Pass bandwidth ±6kHz or less at 6dB
Attenuation bandwidth ±12.5kHz or less at 50dB
Ripple 2dB or less
Insertion loss 6dB or less
Guaranteed attenuation
Center frequency deviation
Terminating impedance 2k
fo+(500~1000kHz)
70dB or more at
fo–(200~1000kHz)
±1.5kHz at 3dB - ±1kHz at 6dB ±150Hz or less at 6dB
35dB or more at
fo±100kHz
±1.0kHz
Ω
30dB or more at fo±1MHz 60dB or more at fo±1MHz
60dB or more at
fo±300kHz
14
Table 6 IF fi lter
CIRCUIT DESCRIPTION
Noise Blanker Circuit (NB Circuit)
Noise detection circuit
■
The Noise detecting circuit is the circuit that removes
short frequency pulse noise.
The 10.695MHz or 11.374MHz IF signal passes through
the buffer (Q641) in the TX-RX unit (X57-785 A/2), and is
sent from CN674 to the NB unit (X57-785 B/2) CN667 (NB
IF) through a co-axial cable.
The signal input into the NB unit (X57-785 B/2) is amplified by the 4 stage amplifier (Q651, Q652, Q653, Q663,
Q664, Q666), passes through the buffer (Q670), and then
noise-detected by D662. This noise-detected voltage
switches Q669, turns Q671 ON, attenuates the IF signal in
the blanking circuit (D461 to D464) depending on the noise,
and removes the pulse noise.
When long-frequency signal is input, the AGC functions
X57-785 (A/2) X57-785 (B/2)
IF input
10.695MHz/
11.374MHz
Q641
Buffer
Q651
NB Amp1
Q652/Q653
NB Amp2
AGC
Q663/Q664
NB Amp3
Q666
NB Amp4
TS-590S
and the gains of the NB amplifi er 2 (Q652, Q653), NB amplifi er 3 (Q663, Q664), and NB amplifi er 4 (Q666) are lowered,
which results in low detecting voltage, and Q671 is not
turned ON. Thus, the IF signal is not attenuated. Because
the AGC time constant is large, a pulse with short frequency
does not let the AGC function and lower the detecting voltage, Q671 becomes ON and the blanking circuit can function.
When the NB function is turned ON, the threshold variable direct current “NBL” is added to the Q669 emitter from
the D/A converter (IC13). By changing the emitter’s voltage,
the NB effect can be adjusted. Also, when the IF signal is
10.695MHz, Q654, Q665, and Q668 becomes ON and the
NB amplifi er 2, NB amplifi er 3, and NB amplifi er 4’s tuning
point changes.
Q670
Buffer
Q667
NB AGC Amp
D662
Detection
Q669
Switching
NBL
(Noise Blanker threshold level)
Q671
Switching
BLNK signal
(NB blank control)
IBK
Fig. 10 Noise detection circuit
Blanking circuit
■
The Noise blanking circuit is a circuit which attenuates
the IF signal by the signal detected in the noise detection
circuit and removes pulse noise.
If pulse noise is not detected in the NB unit, BLNK turns
to “H”, Q456 turns to ON and Q455 turns to OFF. Also, diodes D461 to D464 turn OFF and the IF signal is attenuated.
+8V
Blanking ON: 4V
Blanking OFF: 1.6V
D461
D462
D463
D464
Q455,Q456
L462L461
Blanking ON: 8V
Blanking OFF: 0V
OUTIN
BLNK
H: Blanking ON
L : Blanking OFF
Fig. 11 Blanking circuit
Transmitter Circuit
From transmission signal (TIF) to drive output
■
The path of the transmission signal (TIF) is divided by the
analog switch (IC68) in the Control unit (X53-446 A/3) in accordance with whether it’s FM mode or a mode other than
FM.
In FM mode, the transmission signal is switched by the
analog switch (IC68), and the frequency is modulated in
audio signals into the LO1 (first local oscillator signal). In
modes other than FM, the transmission signal is switched
by the analog switch (IC68), and then input into the balanced
mixer (IC701). The 24kHz IF signal and LO3 (third local oscillator signal) are input into this balanced mixer to generate
the 10.695MHz IF signal.
The 10.695MHz transmission IF signal passes through
the IF fi lter (XF471) with the 6kHz bandwidth, and controls
the transmission IF amplifi er’s (Q721) second gate by the
ALC voltage and adjusts the gain. The pin diode (D721) operates the variable attenuator by current control, and changes
the transmission IF signal gain. This variable gain provides
the TGC function which controls each band’s transmission
gain.
15
TS-590S
CIRCUIT DESCRIPTION
The 10.695MHz transmission IF signal is converted to
73.095MHz by the mixer (D422, D423). The impedance is
made variable by the current that passes through the pin diode (D741), and thus the level of the 73.095MHz transmission IF signal level changed. This level variance corrects the
transmission signal gain (PGC function) at the time of power
control.
from DAC
(IC72)
Drive OUT
IC68
TIF
IC701
FM
LO3 ALC LO2
Fig. 12 From transmission signal (TIF) to drive output
From the drive output to the antenna terminal
■
The transmit signal sent from the TX-RX unit (X57-785
A/2) to the CN2 (TXRF) of the Final unit (X45-391 A/2) is
amplifi ed to the designated power in the fi nal stage, passes
through the LPF, and is then output from the antenna terminal. This unit includes a relay antenna tuner circuit that operates in all bands.
The transmit signal input into the Final unit (X45-391 A/2)
CN2 is amplifi ed by the pre-drive amplifi er (Q1, Q2) and the
drive amplifier (Q3, Q4). Then, the signal's high harmonic
is eliminated in the LPF and the signal goes through the
progressive wave/reflected wave detection circuit, amplitude phase detection circuit for the antenna tuner, transmit/
receive changeover relay (K46), antenna tuner IN/THROUGH
changeover relay (K45), antenna changeover relay (K44), and
fi nally, output through the ANT1 or ANT2 antenna terminal.
In order to reduce the transmit/receive changeover relay's
operational noise, relays are in a separate unit (X45-391 B/2).
The transmission signal which passed MCF (XF371) with
the bandwidth 15kHz is converted to the target transmission frequency in the fi nal transmit mixer (IC761). This MCF
(XF371) helps reduce proximate spurious components. The
signal from the fi nal transmit mixer passes through the receive BPF, and is amplifi ed to the power needed to drive the
fi nal circuit in the drive amplifi er (Q783).
D422
D721
Q721
D722
XF371
73.095MHz
D423
D741
10.695MHz
FM
XF471
IC761Q783
LO1
The antenna tuner tunes by the combination of the condenser and the coil. Its operation is the same as in previous
models. IC6's phase error signal switches the input side
condenser of the tuning circuit, and the IC5 amplitude difference signal switches the output side condenser. The SWR
is decided by calculating the voltage of the progressive
wave and the refl ected wave with the main MCU (X53-446
IC306).
This model includes a current protection circuit. The current running in the fi nal portion is converted to the potential
difference of the 1mΩ resistance inserted into a power line,
and the potential difference is detected at IC4. When the
potential difference is larger than designated, IC4 output
activates the ALC protection function. This ALC protection
function controls so that the current would not exceed the
predetermined value when the current at the fi nal portion
is increased for some unexpected reason. There are other
protection circuits the same as the ones included in the previous models.
16
ANT2 ANT1
Fig. 13 From the drive output to the antenna terminal
AT IN
AT
Through
DRV IN
Q3
Q2Q1
X45 B/2
K46
K45K45K44
RAT
(TX-RX
unit)
Amplitude
ERROR
OUT
Q4
L42
D252 D251
IC5
TX LPF
1.8~50MHz
BAND
L40
SWR
L41
Q251
IC6
VSR
VSF
Q252
Phase
ERROR
OUT
CIRCUIT DESCRIPTION
TS-590S
Transmit power control
■
Transmit power control is done in the same way as in
the previous models; the ALC circuit controls the ALC voltage using the progressive wave voltage (VSF) and keeps a
constant output.
The voltage detected in the Final unit (X45-391 A/2) progressive wave voltage and reflection wave voltage (VSR)
detection circuits is sent to the TX-RX unit’s (X57-785 A/2)
CN5. The progressive wave voltage is divided into a suitable
voltage by the resistance, and input into the differential amplifi ers consisting of Q803 and Q804.
If the progressive wave voltage rises, the emitter voltage also rises, and Q804 base current decreases and Q804
collector voltage rises. If this collector voltage exceeds approximately 2.4V (Q805’s VBE and VE added), Q805’s base
current starts to fl ow, and the collector voltage where the
ALC time constant CR is selected decreases. This collector
voltage is buffered in Q806, the voltage is shifted in D811,
and matched with the keying control voltage by Q807 and
D812 to generate the ALC voltage. If the ALC voltage (2.7V
8A
Q803
VSF
Q805 Q806
Q804
when the ALC voltage is not added) goes down, the IF amplifi er’s (Q721) second gate voltage goes down and the gain
is decreased.
When transmitting AM, Q802 is turned on approximately
20ms after transmission, and the ALC voltage is controlled
with the average power. The Q804 base voltage, which
would be ALC’s reference voltage, is controlled by the adjustment value (POC) from the main MCU, and output from
pin 5 of the D/A converter (IC13).
SWR protection is controlled by the refl ection wave voltage. The refl ection wave voltage is divided by the resistance
and input into IC801. If it exceeds the designated voltage,
IC801’s output controls the ALC voltage and lowers the
power.
The PWR (power) meter is amplifi ed from the progressive wave voltage, the SWR meter is amplifi ed from the refl ection wave voltage, and the ALC meter is amplifi ed from
the ALC voltage each by the relevant operation amplifier
and then input into the A/D converter and displayed on each
meter.
POC
AMC
EXT ALC
IC801
VSR
CURRENT
Q802
Fig. 14 Transmit power control
DAC (IC75, IC78) and ADC (IC83) Signal Path
Outline
■
DAC (IC75) communicates signals with ACC2 and the
Optional unit (VGS-1). DAC (IC78) communicates signals
with USB. ADC (IC83) communicates signals with ACC2/
USB and the Optional unit (VGS-1). The signal path of DAC
(IC75, IC78) and ADC (IC83) vary depending on each status
of transmit/receive.
Q807
ALCREF
D812
CW
CONTROL
CKY
ALC
OUT
IC802
D811
–6V
IC803
Functions relating to transmission
■
1) Modulation input path
Each output signal from the analog switch (IC80) passes
through the active fi lter (IC81) and then enters ADC (IC83)
and is sent to DSP (IC301).
The signal sent from the USB (UAO) is output from pin 6
y
to pin 5 of the analog switch.
The signal sent from the ACC2 (ANI) is output from pin 2
y
to pin 1 of the analog switch.
The message output signal (VAO) from the Optional unit
y
(VGS-1) passes, without going through the analog switch,
through the active fi lter (IC82), and then input into ADC.
17
TS-590S
CIRCUIT DESCRIPTION
2) Modulation output path
The AF signal processed in DSP (IC301) is output as
analog in DAC (IC75, IC78) and then amplifi ed by the active
fi lter (IC73, IC76).
The signal that passed through the active fi lter (IC73) is
y
sent to ACC2 output signal (ANO).
The signal that passed through the active fi lter (IC76) is
y
sent to USB output signal (UAI).
3) Recoding a message
Signals input from the microphone are processed in ADC
(IC66), passed through DSP, and then enter DAC (IC75).
The signals output from DAC (IC75) pin 11 are sent to
the Optional unit (VGS-1) and recorded.
Constant received audio recording function
■
1) Recording
A part of received audio signal is processed in ADC (IC66),
goes through DSP (IC301), and then enters DAC (IC75). The
signals output from DAC (IC75) pin 11 are sent to the Optional unit (VGS-1) and recorded. The recording level is automatically compensated to become constant and you cannot
randomly change the level.
2) Playback
The output signal (VAO) from the Optional unit (VGS-1) is
input into ADC (IC83), goes through DSP (IC301), and output
as AF from DAC (IC72). Playback volume is controlled by
DSP.
Other functions
■
1) Playing a message (monitor)
The output signal (VAO) from the Optional unit (VGS-1) is
input into ADC (IC83), goes through DSP (IC301), and output
as AF from DAC (IC72). Playback audio is controlled by DSP.
2) Playing a pre-recorded voice message
The above-mentioned signal path is also used for playing
a pre-recorded voice message.
Digital Control Circuit
Outline
■
The digital control circuit consists of the Control unit’s
(X53-446 A/3) main MCU (IC306), EEPROM (IC309), reset IC
(IC307), and DSP (IC301). (Refer to Fig. 15)
Main MCU and its periphery
■
The main MCU (IC306) operates at the power supply
voltage of 3.3V, and the clock frequency of 22.1184MHz
which is 11.0592MHz doubled in the main MCU. Around
the main MCU, EEPROM for backup, power supply voltage
monitoring circuit which includes a reset circuit, 3-state output buffer (IC311) for DSP control are connected. When the
power supply is OFF, the mode is switched to stop mode in
order to reduce the standby current.
Around the DSP
■
The DSP (IC301) operates at the power supply voltage of
3.3V and 1.25V and clock frequency of 221.184MHz which
is 24.576MHz multiplied by 9 in the DSP. Around DSP, fl ash
memory (IC302) for storing programs, and DAC (IC66, IC83)
and DAC (IC72, IC75, IC78) for controlling signals are connected.
IC66
ADC (MIC, RIF/DET)
IC72
DAC (AF, TIF/MOD)
IC75
DAC (ANO, VGS-AI)
IC78
DAC (USB-AO, AGCV)
IC83
ADC (VGS-AO, ANI/USB-AI)
18
IC301
DSP
X301
X’tal
(24.576MHz)
IC302
Flash
memory
IC304
OR
IC305
NAND
IC317
OR
(512k
16bit)
IC311
Buffer
Fig. 15 Digital control circuit
IC306
Main MCU
X302
X’tal
(11.0592MHz)
IC307
Reset circuit
Reduced voltage detection
Over voltage detection
Panel MCU
IC309
EEPROM
PC (RS-232C)
(USB)
External AT
CIRCUIT DESCRIPTION
Display Circuit
The Display unit (X54-370) consists of the panel MCU
(IC103) and the peripheral circuits, LCD display, and LED including LCD back light. Communication with the main MCU
(X53-446 IC306) is carried out in PTXD, PRXD, PCTS, PRTS.
(Transmission speed: 115200bps)
Circuits around the panel MCU
■
The 33C power supply (3.3V) sent from the transceiver is
used as the power supply for the digital portion. The panel
MCU clock is 11.0592MHz (X101). The reset signal is controlled from the main MCU. Also, the panel MCU accepts
the key matrix, various encoders, and volume.
TS-590S
LCD driver
■
The LCD driver used is LC75897PW (IC101). In accordance with the IC’s specifi cation, the 5V power supply for
the LCD needs to be input after VDD (3.3V), a power supply
switch circuit (Q102) for turning 5V ON after 3.3V occurs.
In order to reliably control the power ON sequence, such
control is executed by the panel MCU. (Frame frequency:
97.66Hz, duty: 1/3, bias: 1/3)
LED
■
LCD back light uses 54 LEDs for 1 color, and amber or
green can be chosen by the menu. There are 5 steps of the
back light luminance: 4 steps with the dimmer and OFF. Because the drive transistors (Q101, Q103, Q104, Q105) cannot be directly controlled with the panel MCU because of
the quantity of LEDs, logic ICs (IC102, IC104) are used as a
buffer. LCD back light’s default value is amber. LED at times
of transmit/receive is controlled by the panel MCU.
LCD
COM1~COM3
S1~S119
IC101
LCD driver
Key matrix
8A (8V)
Q101/Q103
Drive circuir
for Amber
Q102
Power supply
control
DATA/CLK/CE
KIN0~KIN7
KO0~KO7
11.0592MHz
5C_L (5V)
LCD backlight
(Amber)
IC102
Buffer
IC103
Panel MCU
LCD backlight
(Green)
Q104/Q105
Drive circuir
for Green
DIMM
LCDB_Y
LCDB_YG
IC105
Voltage converter
IC106
Voltage converter
MU/MD/PCTS/PRXD/PRTS/
PTXD/BKC/PRESET/PWS
IC104
Buffer
Main Encoder
RIT Encoder
Multi Encoder
Lo/Hi Encoder
Notch VR/SQL VR
AF VR/RF VR
CN107
to Control unit
X53-446 (A/3)
Fig. 16 Display circuit
19
TS-590S
COMPONENTS DESCRIPTION
Final unit (X45-391X-XX)
Ref. No. Use / Function
IC1 Shift register BPF switching
IC2,3 OP amplifi er VSF detection
IC4
IC5,6 OP amplifi er VSF detection
IC7 Shift register
IC8~10 Shift register AT control
Q1,2
Q3,4 Drive amplifi er HF band push-pull amplifi er
Q5 Switching Power supply control of 14S
Q101 Switching Over voltage detection
Q251,252 Amplifi er VSF signal amplifi er
Q253,254 Switching Relay (K46) control
Q501~508
Q509,510 Switching FAN control
Q511 Switching Power supply control of 14S
Q513 Switching AT control
Q514,515 Switching Relay (K45) control
Q516 Switching FAN control
Q517,518 Switching AT control
Q519 Switching Relay (K44) control
Q520 Switching FAN control
Q521~524
Q525,526 Switching
Q527~544
D1,2 Attenuator RF power control
D51,52 Protection Surge protection
D101 Protection Reverse connection protection
D102~110
D111 Protection Over voltage protection
D251~253
D254 Protection Surge protection
D255 Detection RF power control
D256,257 Protection Surge protection
D258 Switch
D301~325
D501~503
Drain current
detection
Pre-drive amplifi er
Switching
Switching AT control
Switching AT control
Reverse voltage
prevention
Detection RF power control
Protection Surge protection
Protection Surge protection
Operation / Condition / Compatibility
Current detection
Q1: AT switching
Q2: ANT switching
Q4: BPF switching
Q5: FAN control
Q6: FAN control
Q8: AT control
HF band amplifi er
Filter switching depending on
band
AT relay operation stops when
power is ON
Surge protection
Control unit (X53-446X-XX)
Ref. No. Use / Function
IC1
IC2
IC3 8V AVR
IC4 3.3V AVR
IC5 5V AVR
IC6 1.25V AVR
IC61 OP amplifi er Isolation amplifi er for MIC signal
IC62,63 OP amplifi er Active fi lter for MIC signal
IC64,65 OP amplifi er Active fi lter for RIF signal
IC66 A/D converter
IC67 AF amplifi er
IC68 Analog switch
IC69 OP amplifi er Active fi lter for AF signal
IC70 OP amplifi er
IC71 OP amplifi er
IC72 D/A converter
IC73 OP amplifi er Active fi lter for ANO signal
IC74 OP amplifi er Active fi lter for VAI signal
IC75 D/A converter
IC76 OP amplifi er Active fi lter for UAI signal
IC77 OP amplifi er
IC78 D/A converter
IC79 OP amplifi er Active fi lter for AN1 signal
IC80 Analog switch ANI and UAO signal switch
IC81 OP amplifi er
IC82 OP amplifi er Active fi lter for VAO signal
IC83 A/D converter
IC301 DSP Digital signal
IC302 Flash memory Program for DSP
IC304 OR gate IC FCS control
IC305 NAND gate IC Inverter for A (23) signal
IC306 MCU Main microcomputer
IC307 Reset IC MCU reset signal
3.3V switching
regulator
8V switching
regulator
Operation / Condition / Compatibility
3.3V switching regulator
(Digital circuit)
8V switching regulator
(Analog circuit for TX-RX, Display
and Control unit)
8V voltage regulator
(Local unit X53 B/3)
3.3V voltage regulator
(Main MCU and RS-232C circuit)
5V voltage regulator
(Analog circuit)
1.25V voltage regulator power
supply (DSP)
A/D converter for MIC and RIF
signal
FMOD and TIF signal ON/OFF
switch
Active fi lter for FMOD and TIF
signal
Active fi lter for FMOD, TIF and
AF signal
D/A converter for FMOD, TIF and
AF signal
D/A converter for ANO and VAI
signal
Buffer for AGCV signal and reference voltage source
D/A converter for UAI and AGCV
signal
Active fi lter for ANI and UAO
signal
A/D converter for ANI, UAO and
VAO signal
20
COMPONENTS DESCRIPTION
TS-590S
Ref. No. Use / Function
IC308 OR gate IC Buffer for VBINT signal
IC309 EEPROM
IC310
IC311
IC312 Buffer
IC313 Buffer
IC314 Buffer Buffer for CLK signal
IC315 Reset IC BKC detection
IC316 OR gate IC Delay time control of FOE
IC317 OR gate IC Logic IC for IC311 control
IC501,502
IC504 5V AVR 5V voltage regulator
IC505 3.3V AVR 3.3V voltage regulator
IC601 DDS LO3 generator
IC651 Shift register
IC801 PLL LO1 reference generator
IC802 1.8V AVR 1.8V voltage regulator
IC803 DDS LO1 generator
IC804 Amplifi er Wide band amplifi er
IC901 Level converter RS-232C level converter
IC902 OP amplifi er USB audio amplifi er
IC903 CODEC USB audio IC
IC904 AND gate USB audio IC control
IC905 USB hub
IC906 USB-UART bridge
Q1~4 Switching
Q61 Ripple fi lter For audio amplifi er VCC
Q62 Switching Detection signal mute switch
Q63,64 Switching
Q65 Buffer Buffer amplifi er for ANO output
Q66,67 Switching
Q501
Q502 Buffer 15.6MHz buffer
Q503 Doubler
Analog multiplexer
Buffer with
3-state output
Buffer Voltage conversion: 3.3V → 5V
Crystal oscillation
circuit
Operation / Condition / Compatibility
A/D port selection of MCU
Data control of DSP
Voltage conversion: 5V → 3.3V
(for TTI and TSI signal)
Voltage conversion: 3.3V → 5V
(for TTO and TSO signal)
Q1: I/O update
Q2: FM_TX
Q3: IFB
Q4: IFA
Q5: BPF1
Q6: BPF2
Q7: BPF3
Q8: BPF4
Power supply control of 3.3V
(ON when power is ON)
FMOD and TIF signal ON/OFF
analog switch control (IC68)
ANI and UAO signal ON/OFF
analog switch control (IC80)
Crystal oscillation circuit
(15.6MHz)
Frequency doubler
(15.6MHz x 2 = 31.2MHz)
Ref. No. Use / Function
Q504,505 Doubler
Q506 Amplifi er LO2 output amplifi er
Q601 Buffer DDS reference buffer
Q602 Buffer LO3 output buffer
Q651,652 Switching BPF4 selection switch
Q653,654 Switching IFB selection switch
Q655,656 Switching BPF1 selection switch
Q657,658 Switching IFA selection switch
Q659,660 Switching BPF2 selection switch
Q661,662 Switching BPF3 selection switch
Q663 Amplifi er LO1 output amplifi er
Q664 Switching
Q801 Buffer PLL reference buffer
Q802 Switching FM modulation switch
Q803 Switching PLL LPF cutoff control switch
Q804 Amplifi er PLL F-in amplifi er
Q805 Filter Ripple fi lter
Q806 VCO
Q807 Amplifi er VCO amplifi er
Q808 Amplifi er DDS reference amplifi er
Q901 Switching
Q902 Switching
Q903 Switching USB audio IC active signal switch
Q904 Switching
D1 Switching
D2 Switching
D3~6 Voltage shift Temperature compensation
D7~9
D61 Poly-switch Current limit
D62
D101 Mute For AF mute
D301 6.2V zener diode Voltage shift
D302
D304 Switching
D501 Switching LO2 output switch
D651 Switching IFA selection switch
D652 Doubler DDS output frequency doubler
D653 Switching LO1 BPF3 selection switch
Reverse current
prevention
Reverse current
prevention
Reverse current
prevention
Operation / Condition / Compatibility
Frequency doubler
(31.2MHz x 2 = 62.4MHz)
LO1 output LPF cutoff control
switch
RS-232C IC power supply control
switch
USB IC power supply control
switch
USB-UART bridge IC active Signal
Switch
Catch diode for 3.3V switching
regulator
Catch diode for 8V switching
regulator
For MIC data
For MIC supply (8V)
For SS signal
21
TS-590S
COMPONENTS DESCRIPTION
Ref. No. Use / Function
D654 Switching LO1 BPF2 selection switch
D655 Switching LO1 BPF4 selection switch
D656 Switching
D657 Switching LO1 BPF1/ BPF2 selection switch
D659 Switching IFB selection switch
D660 Switching LO1 BPF4 selection switch
D661 Switching LO1 BPF2 selection switch
D662 Switching LO1 BPF1/ BPF2 selection switch
D663 Switching LO1 BPF3 selection switch
D664,665 Switching LPF cutoff switching
D666 Switching LO1 BPF4 selection switch
D667 Switching IFA/ IFB selection switch
D668 Switching LO1 BPF1 selection switch
D669 Switching LO1 BPF3 selection switch
D670 Switching LO1 BPF1 selection switch
D671 Switching
D672 Switching BPF1/ BPF2 selection switch
D673,675,677
D678 Switching LO1 BPF2 selection switch
D679 Switching LO1 BPF3 selection switch
D680,681 Switching LO1 BPF4 selection switch
D682 Switching LO1 BPF1 selection switch
D683 Switching LO1 BPF3 selection switch
D801
D802,803
D901 Protection Surge protection
D902 Protection Voltage protection
D903 Protection Reverse current protection
Switching BPF cutoff control
Variable capacitance diode
Variable capacitance diode
Operation / Condition / Compatibility
BPF2/ BPF3 selection signal control
BPF2/ BPF3/ BPF4 selection
switch
FM modulation control
VCO control
Display unit (X54-3700-00)
Ref. No. Use / Function
IC101 LCD driver
IC102 Buffer LCD backlight dimmer control
IC103 MCU Panel microcomputer
IC104 Buffer LCD backlight dimmer control
IC105,106
Q101 Driver LCD backlight dimmer control
Q102 Switching 5V power supply switch
Q103~105
Q106 Driver LED (D214, D215) control
Q107 Driver LED (D961) control
D101~115
D116~122
Buffer Voltage conversion: 5V → 3.3V
Driver LCD backlight dimmer control
LED (Green) LCD backlight
Reverse current
prevention
Operation / Condition / Compatibility
Key matrix
Ref. No. Use / Function
D123~160
D161~213
D214 LED (Green) Lights during reception
D215 LED (Red) Lights during transmission
D216 LED (Green) LCD backlight
D217 LED (Amber) LCD backlight
D218
D961 LED (Orange) ON when Mulch encoder is active
LED (Green) LCD backlight
LED (Amber) LCD backlight
Reverse current
prevention
Operation / Condition / Compatibility
Reduced voltage detection interrupt
TX-RX unit (X57-785X-XX)
Ref. No. Use / Function
IC11 Shift register
IC12 Shift register
IC13 D/A convertor
Operation / Condition / Compatibility
Q1: FIL[1] “H” when 15kHz IF
fi lter is selected
Q2: FIL[2] “H” when 6kHz IF
fi lter is selected
Q3: FIL[3] “H” when 2.7kHz IF
fi lter is selected
Q4: FIL[4] “H” when 500Hz IF
fi lter is selected
Q5: RXFM “H” when RX FM
mode is selected
Q6: TXFM “H” when TX FM
mode is selected
Q7: HFRGC “H” when receiving
21.5~30MHz and PRE “H” are
selected
Q8: 50RGC “H” when receiving 30~60MHz and PRE ”H” are
selected
Q1: DRVO “H” when drive
output is selected
Q2: 1STIF “H” when RX 1st IF
of 73.095MHz is selected
Q3: 455FIL “L” when 455kHz
FM narrow fi lter is selected
Q4: ALCS “H” when TX SSB/
AM mode are selected
Q5: AMC “H” when AM TX is
selected
Q6: RLSW “H” when linear
amplifi er usage is selected in HF
or 50MHz band
Q7: LINEAR “H” when linear
amplifi er usage is selected in
either band
Ao1: AGC_REF
AGC reference voltage
Ao2: IFGC
RX IF gain control voltage
Ao3: ALC_REF
ALC reference voltage
Ao4: TGC
TX band gain control voltage
Ao5: POC
TX power control voltage
Ao6: PGC
TX power gain control voltage
22
COMPONENTS DESCRIPTION
TS-590S
Ref. No. Use / Function
IC13 D/A convertor
IC14 Shift register
IC15 Shift register
IC521 OP amplifi er
IC591 RX FM IC RX FM Detection
IC592 OP amplifi er
IC631 Multiplexer
IC701 TX Mixer
IC761 TX Mixer
IC801 OP amplifi er ALC protection
IC802 Multiplexer
IC803 OP amplifi er ALC protection
IC861 OP amplifi er Amplifi er for meter
Q12 Buffer Buffer amplifi er for ANO output
Q13 Switching
Operation / Condition / Compatibility
Ao7: PRO
SWR protection control voltage
Ao8: NBL
NB level control voltage
Q1: BPF[5] “H” when BPF of
5M band is selected
Q2: BPF[4] “H” when BPF of
3.5M band is selected
Q3: BPF[3] “H” when BPF of
1.8M band is selected
Q4: BPF[2] “H” when BPF of
BC band (522k~1.705MHz) is
selected
Q5: BPF[1] “H” when BPF of
BC band (30~522kHz) is selected
Q6: ATT “L” when attenuator is
ON
Q7: RXANT “H” when receiving under 30MHz and external RX
antenna is ON
Q8: PRE “H” when receiving
preamplifi er is ON
Q1: BPF[13] “H” when BPF of
50M band is selected
Q2: BPF[12] “H” when BPF of
30~60M band is selected
Q3: BPF[11] “H” when BPF of
28M band is selected
Q4: BPF[10] “H” when BPF of
21M band is selected
Q5: BPF[9] “H” when BPF of
14M band is selected
Q6: BPF[8] “H” when BPF of
11M band is selected
Q7: BPF[7] “H” when BPF of
10M band is selected
Q8: BPF[6] “H” when BPF of
7M band is selected
A/2: AGC Voltage and AGC reference voltage amplifi er
B/2: Not used
A/2: RX FM Noise squelch voltage amplifi er
B/2: RX FM AF signal amplifi er
Receiver output, FM (AF) and SSB/
AM/ CW/ FSK (IF) changeover
Transmission mixer
(24kHz → 10.695MHz)
Transmission mixer
(73.095MHz → HF)
ALC protection time constant
changeover
External squelch output
(open collector)
Ref. No. Use / Function
Q14 Buffer
Q15 Switching
Q16 Switching
Q17 Switching
Q101 Switching
Q102 Switching
Q103 Mute
Q131~143
Q236 Amplifi er
Q239 Switching
Q263~266
Q267 Switching
Q268 Switching
Q269 Switching
Q270 Switching
Q271 Switching
Q272 Switching
Q273 Switching
Q274 Switching
Q281,282 Amplifi er
Q301 Switching
Q321~324
Q351,352 Amplifi er
Q391 Amplifi er
Q421 Switching
Switching RF BPF selection
RX mixer
RX mixer
Operation / Condition / Compatibility
Buffer amplifi er for PKS input signal
ON when relay for HF band linear
is used
ON when relay for HF band linear
is transmission
ON when relay for HF band linear
is used
Dedicated external RX antenna
changeover relay (K101) control
(ON when external RX antenna is
selected)
ATT changeover relay (K102)
control (OFF when ATT is ON)
Mutes reception path during
transmission
(ON during transmission)
Preamplifi er (HF~21.5MHz: 12dB,
21.5~60MHz: 20dB)
Preamplifi er gain control
(ON receiving at 21.5~60MHz)
Receiving 1st mixer
(HF → 11.374MHz)
Power supply control of preamplifi er (ON when preamplifi er is ON)
Power supply control of preamplifi er (ON when preamplifi er is OFF)
Power supply control of preamplifi er (ON when preamplifi er is ON)
Power supply control of preamplifi er (ON when preamplifi er is OFF)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
73.095MHz is selected)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
11.374MHz is selected)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
73.095MHz is selected)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
11.374MHz is selected)
RX LO1 amplifi er (RX 1st IF of
11.374MHz is selected)
ON when RX 1st IF of 11.374MHz
is selected
Receiving 1st mixer
(HF → 73.095MHz)
RX LO1 amplifi er (RX 1st IF of
73.095MHz is selected)
RX 1st IF amplifi er (RX 1st IF of
73.095MHz is selected)
Gain correction between 1st IF
(ON when TX or RX 1st IF of
73.095MHz are selected)
23
TS-590S
COMPONENTS DESCRIPTION
Ref. No. Use / Function
Q431 Amplifi er
Q451 Amplifi er
Q453 Switching
Q454 Switching
Q455,456 Switching ON when BLNK signal is “H”
Q471~477
Q521,522 Amplifi er
Q541 Amplifi er
Q551 Amplifi er RX 3rd IF amplifi er (24kHz)
Q571 Amplifi er
Q591 Switching
Q631 Switching
Q641 Buffer Noise blanker input buffer
Q651 Amplifi er
Q652,653 Amplifi er
Q654 Switching
Q660~662
Q663,664 Amplifi er
Q665 Switching
Q666 Amplifi er
Q667 Amplifi er
Q668 Switching
Q669 Switching Audio mute signal generation
Q670 Buffer Noise Blanker IF buffer
Q671 Switching Audio mute signal generation
Q702 Buffer TX IF buffer (10.695MHz)
Switching IF fi lter selection
DC-DC oscillator –6V generation
Operation / Condition / Compatibility
LO2 amplifi er (ON when TX or RX
1st IF of 73.095MHz are selected)
RX 2nd IF amplifi er 1
(10.695MHz/ 11.374MHz)
Gain correction between bands
(ON when receiving 21.5~30MHz
and PRE ”H” are selected)
Gain correction between bands
(ON when receiving 30~60MHz
and PRE “H” are selected)
RX 2nd IF amplifi er 3
(10.695MHz/ 11.374MHz)
RX 2nd IF amplifi er 2
(10.695MHz/ 11.374MHz)
LO3 amplifi er (ON when RX AM/
SSB/ CW/ FSK mode is selected)
Power supply control of FM
circuit (ON when RX FM mode is
selected)
Receiver output, FM (AF) and
SSB/ AM/ CW (IF) changeover
multiplexer (IC631) control
Noise blanker IF amplifi er 1
(10.695M/ 11.374MHz)
Noise blanker IF amplifi er 2
(10.695MHz/ 11.374MHz)
Gain is controlled according to the
NB voltage
ON when Noise Blanker IF of
10.695MHz is selected
Noise blanker IF amplifi er 3
(10.695M/ 11.374MHz)
Gain is controlled according to the
NB voltage
ON when Noise blanker IF of
10.695MHz is selected
Noise blanker IF amplifi er 4
(10.695M/ 11.374MHz)
Gain is controlled according to the
NB voltage
Noise blanker AGC control amplifi er
ON when noise blanker IF of
10.695MHz is selected
Ref. No. Use / Function
Q721 Amplifi er
Q741 Switching
Q742 Amplifi er TX IF amplifi er (73.095MHz)
Q781 Switching ON when drive output is selected
Q782 Switching
Q783 Amplifi er TX drive output amplifi er
Q784 Switching
Q801 Switching
Q802 Switching
Q803~807
Q841 Switching Keying control
Q842 Buffer ALC keying control
Q861,862 Switching
Q903~905
Q906,907 Switching
Q908 Switching
Q909 Switching
Q910 Switching
Q911 Switching
Q915 Switching
Q916 Switching
Q917,918 Switching
Q920 Switching
Q925 Switching
D11,12 Clipper External modulation input
Amplifi er ALC amplifi er
Switching
Operation / Condition / Compatibility
TX IF amplifi er (10.695MHz)
Gain is controlled according to the
ALC voltage
Transmission IF mute control
(Mute when ON)
ON when ANT connector output
is selected
Power supply control of TXB to Final unit (X45 A/2) (ON when ANT
connector output is selected)
ALC protection time constant
changeover switch
On in AM mode, makes it an
average value type ALC
Cancels the time constant for
VSF and VSR voltage lines during
antenna tuning
Power supply control of TXB
(ON during transmission)
Power supply control of RXB
(ON during reception)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
11.374MHz is selected)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
73.095MHz is selected)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
11.374MHz is selected)
Power supply control of RX 1st
IF circuit (ON when RX 1st IF of
73.095MHz is selected)
Power supply control of FM
circuit (ON when RX FM mode is
selected)
Power supply control of 3rd IF
circuit (ON when RX AM/ SSB/
CW/ FSK mode is selected)
Power supply control of FM
circuit (ON when TX FM mode is
selected)
Power supply control of RX circuit
(ON during reception)
RX power supply control
(ON during transmission)
24
COMPONENTS DESCRIPTION
TS-590S
Ref. No. Use / Function
D13
D14 Surge protection ACC2 connector (5-pin SQC)
D15 Surge protection ACC2 connector (9-pin PKS)
D17
D18 Surge absorption Relay (K11)
D20~23
D24 Surge protection ACC2 connector (2-pin RTTY)
D101 Surge absorption External RX antenna terminal
D102 Surge absorption Relay (K101)
D103 Surge absorption Relay (K102)
D104~107
D108 Switching
D109,110 Switching
D131 Switching
D132 Switching
D133 Switching
D134 Switching
D135 Switching
D136 Switching
D137 Switching
D138 Switching
D139 Switching
D140 Switching
D141 Switching
D142 Switching
D143 Switching
D144 Switching
D145 Switching
D146 Switching
D147 Switching
Reverse current
prevention
Reverse current
prevention
Reverse current
prevention
Surge absorption Internal circuit protection
Operation / Condition / Compatibility
External standby
Paddle/key control line
RX/TX changeover, ON during
reception
ON when receiving over
1.705MHz is selected
ON when BPF of 522kHz~
1.705MHz is selected
ON when BPF of 13.9~14.5MHz
is selected
ON when BPF of 49~54MHz is
selected (TX only)
ON when BPF of 6.9~7.5MHz is
selected
ON when BPF of 30~522kHz is
selected
ON when BPF of 1.705~2.5MHz
is selected
ON when BPF of 2.5~4.1MHz is
selected
ON when BPF of 4.1~6.9MHz is
selected
ON when BPF of 7.5~10.5MHz is
selected
ON when BPF of 10.5~13.9MHz
is selected
ON when BPF of 14.5~21.5MHz
is selected
ON when BPF of 21.5~30MHz is
selected
ON when BPF of 30~60MHz are
selected
ON when BPF of 522kHz~
1.705MHz is selected
ON when BPF of 30~522kHz is
selected
ON when BPF of 1.705~2.5MHz
is selected
ON when BPF of 2.5~4.1MHz is
selected
Ref. No. Use / Function
D148 Switching
D149 Switching
D150 Switching
D151 Switching
D152 Switching
D153 Switching
D154 Switching
D155 Switching
D156 Switching
D231 Switching
D232 Switching
D233 Switching
D234 Switching
D235
D261,281 Switching
D321 Switching
D323 Switching
D351 Switching
D371 Switching
D421 Switching
D422,423 RX/TX Mixer
D431 Switching
D441 Switching
Reverse current
prevention
Operation / Condition / Compatibility
ON when BPF of 4.1~6.9MHz is
selected
ON when BPF of 6.9~7.5MHz is
selected
ON when BPF of 7.5~10.5MHz is
selected
ON when BPF of 10.5~13.9MHz
is selected
ON when BPF of 14.5~21.5MHz
is selected
ON when BPF of 21.5~30MHz is
selected
ON when BPF of 30~60MHz are
selected
ON when BPF of 13.9~14.5MHz
is selected
ON when BPF of 49~54MHz is
selected (TX only)
ON when receiving preamplifi er
is OFF
ON when receiving preamplifi er
is ON
ON when receiving preamplifi er
is OFF
ON when receiving preamplifi er
is ON
1/2: Receiving ON at 21.5~30MHz
2/2: Receiving ON at 30~60MHz
ON when RX 1st IF of 11.374MHz
is selected
ON when RX 1st IF of 73.095MHz
is selected
1/2: RX/TX changeover, ON during
reception
2/2: RX/TX changeover, ON during
transmission
ON when RX 1st IF of 73.095MHz
is selected
1/2: RX/TX changeover, ON during
transmission
2/2: RX/TX changeover, ON during
reception
1/2: RX/TX changeover, ON during
reception
2/2: RX/TX changeover, ON during
transmission
Receiving 2nd/ Transmission
mixer (RX: 73.095MHz →
10.695MHz, TX: 10.695MHz →
73.095MHz)
1/2: RX/TX changeover, ON during
transmission
2/2: RX/TX changeover, ON during
reception
ON when RX 1st IF of 11.374MHz
is selected
25
TS-590S
COMPONENTS DESCRIPTION
Ref. No. Use / Function
D443 Switching
D461~464
D471 Switching
D472 Switching
D473 Switching
D474,475 Switching
D476 Switching
D477 Switching
D478 Switching
D521 Voltage shift
D522~524
D525 Attenuator IF gain adjustment
D526 Switching
D551,552 RX Mixer
D571 Switching
D586,587 Clipper FM detection IC input
D660 -6V DC/DC
D661 Rectifi er Creates negative voltage
D662 Detection
D663
D701 Switching
D702
D721 Attenuator TGC control attenuator
Noise Blanking ON when BLNK signal is “H”
Attenuator AGC control attenuator
Reverse current
prevention
Reverse current
prevention
Operation / Condition / Compatibility
ON when RX 1st IF of 73.095MHz
is selected
1/2: ON when 15kHz IF fi lter is
selected
2/2: ON when 6kHz IF fi lter is
selected
1/2: ON when 10.695MHz 2.7kHz
IF fi lter is selected
2/2: ON when 11.374MHz 2.7kHz
IF fi lter is selected
ON when 500Hz IF fi lter is selected
1/2: RX/TX changeover, ON during
reception
2/2: RX/TX changeover, ON during
transmission
1/2: ON when 15kHz IF fi lter is
selected
2/2: ON when 6kHz IF fi lter is
selected
1/2: ON when 10.695MHz 2.7kHz
IF fi lter is selected
2/2: ON when 11.374MHz 2.7kHz
IF fi lter is selected
ON when 500Hz IF fi lter is selected
Reference voltage of AGC control
attenuator
1/2: ON when RX FM mode is
selected
2/2: ON when RX AM/ SSB/ CW/
FSK mode are selected
Receiving 3rd mixer (10.695MHz/
11.374MHz → 24kHz)
1/2: ON when RX FM mode is
selected
2/2: ON when RX AM/ SSB/ CW/
FSK mode is selected
Stabilizes negative power source
to –6V
Noise blanker switching pulse
detection
Main IBK and NB mute signal
matching, main side mute when
ON
1/2: ON when TX AM/ SSB/ CW/
FSK mode is selected
2/2: No connection
ON during TX FM mode
Ref. No. Use / Function
D722,723 Switching
D741 Attenuator PGC control attenuator
D761,762 Switching
D781 Switching
D782 Switching
D783 Switching
D799,800 Surge absorption Drive output terminal
D801 Power control
D802
D803
D806
D807
D808 Power control Reduce power at high voltage
D809
D810~812
D813 Power control ALC signal line
D841~843
D861,862
Reverse current
prevention
Reverse current
prevention
Reverse current
prevention
Current protection
Reverse current
prevention
Voltage shift Creates a reference voltage
Reverse current
prevention
Reverse current
prevention
Operation / Condition / Compatibility
RX/TX changeover, ON during
transmission
RX/TX changeover, ON during
transmission
1/2: ON when drive output is
selected
2/2: ON when ANT connector is
selected
ON when transmitting over
1.705MHz
ON when transmitting from
30~522kHz
External ALC voltage
VSR signal line
External ALC voltage
Reduce power at over current
VSR signal line
CKY signal line
Meter circuit
26
SEMICONDUCTOR DATA
TS-590S
Main MCU: F3651RDFCKDTA (Control unit IC306)
Pin No.
34,35 NC O Not used
Name I/O Function
1 VREF I A/D standard voltage input
2 AVCC I Analog power supply input
3 DSIN I DSP data input
4 DSOUT O DSP data output
5 DCLK O DSP clock
6 DSCS O DSP chip select
7 TDET I
8 VMIC I
9 VANI I
10 DHLT I DSP check signal input H: Ready
11 DRST O DSP reset output L: Reset
12 UL I Unlock detection L: Unlock
13 BYTE I
14 CNVSS I For production
15 DRET O Communication re-start request to DSP
16 PHDET I
17 RESET I For reset L: Reset
18 XOUT O System clock output (11.0592MHz)
19 VSS - GND
20 XIN I System clock input (11.0592MHz)
21 VCC1 - Power supply input
22 NMI I Not used (VCC connection)
23 DREQ I Communication request from DSP
24 PWS I Power switch input L: Push
25 UVBINT I
26 UCTS I RTS signal input from USB-serial bridge
27 URXD I Serial data input from USB-serial bridge
28 URTS O RTS signal output to USB-serial bridge
29 UTXD O Serial data output to USB-serial bridge
30 NC O Not used
31 DCFV O
32 ABK2 O
33 ABK1 O
36 ETXD O For production
37 VCC1 - Power supply input
38 ERXD I For production
CTCSS detect signal input from DSP
H: Detect
VOX transmit (MIC) signal input from
DSP H: Active
VOX transmit (ANI) signal input from
DSP H: Active
Single chip mode selection (Vss connection)
Phone jack connection detection
L: Detect
USB connection interrupt input
H: Connect
Oscillator frequency output for DC/DC
converter
Audio blanking signal output for ACC2
and USB H: AF blanking
Audio blanking signal output
H: AF blanking
Pin No.
73,74 NC O Not used
Name I/O Function
39 VSS - GND
40 SCLK O For production
41 BUSY O For production
42 PTXD O Serial data output for Panel MCU
43 PRXD I Serial data input from Panel MCU
44 PRTS O RTS signal output for Panel MCU
45 PCTS I RTS signal input from Panel MCU
46 PRST O Reset signal output for Panel MCU
47 TYPX I Type detection
48 TYPY I Type detection
49 TYP3 I Type detection
50 TYP2 I Type detection
51 TYP1 I Type detection
52 EPM O For production
53 TYP0 I Type detection
54 EEN O EEPROM enable
55 EDA I EEPROM data input
56 ECK O EEPROM clock
57 ESI O EEPROM data output
58 VEN O VGS-1 enable
59 VRST O VGS-1 reset
60 VPLY I VGS-1 playback signal input
61 ECE O For production
62 VBSY I VGS-1 busy signal input
63 SS I PTT (SS) signal input L: Transmit
64 FPRG I Firmware programming mode detection
65 AMU O Audio mute H: Mute
66 PHD I Phase comparison detection for AT
67 AMD I Amplitude comparison detection for AT
68 PSC O Power switch control H: Power ON
69 TCS O
70 SQC O Squelch signal H: Close, L: Open
71 PHPWS O Power switch control H: Power ON
72 ATPWS O
75 PKP O
76 PKSR I
77 KEY I Key down signal L: Key down
78 KYS I
79 DASH I Electronic key dash signal L: Dash ON
80 DOT I Electronic Key dot Signal L: Dot ON
AT tuning instruction
H: During AT tuning
Shift and store bus register for AT control
signal H: Valid
Crossband repeater operation instruction L: Crossband repeater operation
Packet transmit/ Crossband transmit
instruction Normal H: Transmit,
Crossband repeater L: Transmit
Key jack connection detection
H: Key jack connection
27
TS-590S
SEMICONDUCTOR DATA
Pin No.
100 CTXD O Serial data output for RS-232C IC
101 CRXD I Serial data input from RS-232C IC
102 CRTS O RTS signal output for RS-232C IC
103 CCTS I RTS signal input from RS-232C IC
104 LDAT O
105 LCLK O
106 LEN O PLL IC enable
107 DEN1 O DDS IC (AD9951YSVZ) enable
108 DEN2 O DDS IC (AD9835BRUZ) enable
109 SEN O
110 IEN1 O
111 IEN2 O
112 IEN3 O
113 FEN2 O
114 DRES O
Name I/O Function
81 TTO O External AT control
82 TSO O External AT control
83 TTI I External AT control
84 TSI I External AT control
85 VCC2 I Power supply input
86 MODSEL O
87 VSS - GND
88 ANISEL O
89 BEEP O
90 BKC I
91 IBK O IF blanking signal output H: Blanking
92 TLN2 O Transmit line select 2 for DSP
93 TLN1 O Transmit line select 1 for DSP
94 TXC O
95 CKY O
96 NC I Not used (External pull up)
97 BOVR I
98 STPC I
99 STS O
Modulation selection
L: TIF, H: FM modulation
ACC2 audio/USB audio selection
L: ACC2 audio, H: USB audio
Beep pattern instruction
H: Beep output
Reduced voltage detection interrup
H→L: Interrupt
Transmit circuit power control
H: Transmit circuit power is ON
Transmit power output control
H: Transmit output
Over voltage detection interrupt
H→L: Interrupt
Interrupt for returning from sleep mode
(PC control) L→H: Interrupt
RS-232C IC power control
H: Power ON
Serial data output for Control unit (LO)
(X53 B/3)
Serial clock output for Control unit (LO)
(X53 B/3)
8-bit shift and register enable (Control
unit (LO) X53 B/3)
8-bit shift and register enable (TX-RX unit
X57 A/2)
8-bit shift and register enable (TX-RX unit
X57 A/2)
D/A converter enable (TX-RX unit X57
A/2)
8-bit shift and register enable (Final unit
X45 A/2)
DDS IC (AD9951YSVZ) reset output
H: Reset
Pin No.
115 FEN1 O
116 CLK O Serial clock output
117 DATA O Serial data output
118 ADC1 O Multiplexer control signal 1
119 ADC2 O Multiplexer control signal 2
120 AXC I Multiplexer X line input
121 AYC I Multiplexer Y line input
122 IDT I Current detection
123 VDT I
124 VSF I Forward wave voltage
125 VSR I Refl ected wave voltage
126 FSQL I Squelch voltage
127 AVSS - Analog GND
128 FSM I S-meter voltage
Name I/O Function
8-bit shift and register enable (Final unit
X45 A/2)
Power supply voltage detection
(Not used)
Panel MCU: F364AEDFBKDUA (Display unit IC103)
Pin No. Name I/O Function
1,2 NC O Not used
3 LCD_B_U O LCD backlight amber L: Light
4 LCD_B_G O LCD backlight green L: Light
5 CHLED O MULTI/CH encoder LED H: Light
6 BYTE I
7 CNVSS I For production
8,9 NC O Not used
10 RESET I For reset L: Reset
11 XOUT O System clock output (11.0592MHz)
12 VSS - GND
13 XIN I System clock input (11.0592MHz)
14 VCC I Power supply input
15 NC I Not used (External pull up)
16 LOENCA I Low cut encoder pulse A input
17 HIENCA I Hi cut encoder pulse A input
18 MULA I MULTI encoder pulse A input
19 M-ENCB I Main encoder pulse B input
20 M-ENCA I Main encoder pulse A input
21 RIT-ENCB I RIT encoder pulse B input
22 RIT-ENCA I RIT encoder pulse A input
23 NC I Not used (External pull down)
24 DIMMER O LCD backlight (PWM)
25 NC I Not used (External pull down)
26~28 NC O Not used
29 E8TXD O For production
Single chip mode selection (Vss connection)
28
SEMICONDUCTOR DATA
TS-590S
Pin No.
30 E8RXD O For production
31 E8CLK O For production
32 E8BSY O For production
33 TXD0 O
34 RXD0 I
35 RTS O
36 CTS I
37,38 NC O Not used
39 E8EPM I For production
40~43 NC O Not used
44 E8CE I For production
45~49 NC O Not used
50 LOENCB I Low cut encoder pulse B input
51 HIENCB I Hi cut encoder pulse B input
52 CHENCB I MULTI/CH encoder B input
53 LCDDATA O LCD driver data output
54 LCDCLK O LCD driver clock output
55 LCDCS O LCD driver chip select output
56 LCDINH O Segment display off control output
57 LCDPOW O
58,59 NC O Not used
60 VCC I Power supply input
61 NC O Not used
62 VSS - GND
63 NC O Not used
64~70 KO6~KO0 O Key scan output bit 6~0
71 PBKC I Reduced voltage detection interrupt
72~78 NC O Not used
79~86 KI7~KI0 I Key scan input bit 7~0
87,88 NC O Not used
89 MU I MIC up key input (A/D)
90 MD I MIC down key input (A/D)
91 NVOL I NOTCH volume input (A/D)
92 SVOL I SQ volume input (A/D)
93 AFVOL I AF volume input (A/D)
94 AVSS - Analog GND
95 RFVOL I RF volume input (A/D)
96 VREF I A/D standard voltage input
97 AVCC I Analog power supply input
98 NC O Not used
99 TXL O TX LED output H: Light
100 BUSYL O BUSY LED output H: Light
Name I/O Function
The serial port for connection with the
main unit
The serial port for connection with the
main unit
RTS port for connection with the main
unit
CTS port for connection with the main
unit
VLCD power control
H: Power supply
DSP: DC6726BRFPA225 (Control unit IC301)
Pin No. Port Name I/O Function
1 VSS - GND
2 MCLKT O Master clock for D/A converter
3 TXC I
4 CKY I Detection of transmit or Not transmit
5 DHLT O DSP check signal to Main MCU
6 VSS - GND
7 DREQ O Communication request to Main MCU
8 CVDD I Core power supply (1.2V)
9 VMIC O
10 DVDD I I/O power supply (3.3V)
11 VANI O
12 TDET O CTCSS detection output to Main MCU
13 VSS - GND
14 DRST I DSP reset
15 VSS - GND
16 CVDD I Core power supply (1.2V)
17 CLKIN I GND
18 VSS - GND
19 TMS I For CN305
20 CVDD I Core power supply (1.2V)
21 TRST I For CN305
22 OSCVSS - Oscillator GND
23 OSCIN I Oscillator input
24 OSCOUT O Oscillator output
25 OSCVDD I Oscillator CVDD
26 VSS - GND
27 PLLHV I PLL DVDD (3.3V)
28 TDI I For CN305
29 TDO O For CN305
30 VSS - GND
31 DVDD I I/O power supply (3.3V)
32 EMU[0] I/O For CN305
33 CVDD I Core power supply (1.2V)
34 EMU[1] I/O For CN305
35 TCK I For CN305
36 VSS - GND
37 NC O Not used
38 WE O Write enable for fl ash memory
39 NC O Not used
40 VSS - GND
41 DQ[7] I/O Data bus for fl ash memory
42 DVDD I I/O power supply (3.3V)
Detection of Reception or Transmission
VOX transmit (MIC) signal output to
Main MCU
VOX transmit (ANI) signal output to
Main MCU
29
TS-590S
SEMICONDUCTOR DATA
Pin No. Port Name I/O Function
43 DQ[6] I/O Data bus for fl ash memory
44 CVDD I Core power supply (1.2V)
45 DQ[5] I/O Data bus for fl ash memory
46 DQ[4] I/O Data bus for fl ash memory
47 VSS - GND
48 DQ[3] I/O Data bus for fl ash memory
49 DQ[2] I/O Data bus for fl ash memory
50 DVDD I I/O power supply (3.3V)
51 DQ[1] I/O Data bus for fl ash memory
52 DQ[0] I/O Data bus for fl ash memory
53 CVDD I Core power supply (1.2V)
54 VSS - GND
55 DQ[15] I/O Data bus for fl ash memory
56 DQ[14] I/O Data bus for fl ash memory
57 CVDD I Core power supply (1.2V)
58 DQ[13] I/O Data bus for fl ash memory
59 DQ[12] I/O Data bus for fl ash memory
60 DVDD I/O I/O power supply (3.3V)
61 DQ[11] I/O Data bus for fl ash memory
62 VSS - GND
63 DQ[10] I/O Data bus for fl ash memory
64 DQ[9] I/O Data bus for fl ash memory
65 CVDD I Core power supply (1.2V)
66 DQ[8] I/O Data bus for fl ash memory
67 NC O Not used
68 DVDD I I/O power supply (3.3V)
69 VSS - GND
70,71 NC O Not used
72 VSS - GND
73 DVDD I I/O power supply (3.3V)
74 A[12] O Address bus for fl ash memory
75 A[10] O Address bus for fl ash memory
76 A[9] O Address bus for fl ash memory
77 CVDD I Core power supply (1.2V)
78 VSS - GND
79 A[8] O Address bus for fl ash memory
80 A[7] O Address bus for fl ash memory
81 DVDD I I/O power supply (3.3V)
82 VSS - GND
83 A[6] O Address bus for fl ash memory
84 A[5] O Address bus for fl ash memory
85 CVDD I Core power supply (1.2V)
86 A[4] O Address bus for fl ash memory
87 VSS - GND
88 A[3] O Address bus for fl ash memory
Pin No. Port Name I/O Function
89 A[2] O Address bus for fl ash memory
90 CVDD I Core power supply (1.2V)
91 A[1] O Address bus for fl ash memory
92 DVDD I I/O power supply (3.3V)
93 A[11] O Address bus for fl ash memory
94 A[0] O Address bus for fl ash memory
95 VSS - GND
96 A[23] O Selection for extension I/O port
97,98 NC O Not used
99 VSS - GND
100 CS O Chip select for fl ash memory
101 CVDD I Core power supply (1.2V)
102 NC O Not used
103 DVDD I I/O power supply (3.3V)
104 OE O Output enable for fl ash memory
105 RYBY I Ready/ Busy signal for fl ash memory
106 VSS - GND
107 DSCS I
108 DCLK I
109 VSS - GND
110 DSOUT I
111 DSIN O
112 DVDD I I/O power supply (3.3V)
113 SDTI0 I
114 VSS - GND
115 SDTI1 I
116 SDTO0 O
117 SDTO1 O
118 VSS - GND
119 SDTO2 O
120 NC O Not used
121 PDN O
122 NC O Not used
123 CVDD I Core power supply (1.2V)
124 VSS - GND
125 DVDD I I/O power supply (3.3V)
126,127 NC O Not used
128 CVDD I Core power supply (1.2V)
SPI0 slave chip select for Main MCU
interface
SPI0 serial clock for Main MCU interface
SPI0 data input for Main MCU interface
SPI0 data output for Main MCU interface
Serial data input from A/D converter
(IC66)
Serial data input from A/D converter
(IC83)
Serial data output for D/A converter
(IC72)
Serial data output for D/A converter
(IC75)
Serial data output for D/A converter
(IC78)
Reset for A/D converter and D/A converter
30
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