Kenwood TM-321A User manual

220MHz FM TRANSCEIVER KENWOOD
TM-821A
SERVICE MANUAL
(C:1987-8 PRINTED IN JAPAN
B51-3305-00 (O) 1196
Knob (Button)
(K29-3058-04)
Metallic cabinet (Upper)
(A01-1021-03)
BRY¥an Frelds
Knob (Button)
(K27-0496-04) x2 BR Yond
Panel ass'y Knob (VOL, SQL) Microphone
(A20-2629-02) (K29-3061-04) x2 (T91-0359-05)
VFO/M MNMHz
vou
|
Low
KENWOOD0720mHe FM TRANSCEIVER TM 321A 7
4
2249809 sol we OWN uP
aSHIFT REV SCAN crcss TONE
Knob (Main) Knob (Button)
(K29-3060-04) (K29-3070-04)
Knob (Button) Knob (Button)
(K28-3069-04) (K29-3068-04)
Knob (Button) Knob (Button)
(K29-3065-04) (K29-3067-04)
CIRCUIT DESCRIPTION
SEMICONDUCTOR DATA
DESCRIPTION OF ELEMENTS
PARTS LIST
EXPLODED VIEW
PACKING
DISASSEMBLY
ADJUSTMENT
PC BOARD VIEWS
LCD ASS'Y (B38-0303-05)
VCO (X58-3090-1 1)
DRIVE (X59 312011)
APC (X59-3130-00)
CONTENTS
2
12
IF (X59-31 40-00)
SQL (X59-3150-00)
MIC (X59-3160-00)
VOL (X&9-3170-00)
FINAL UNIT (X45-1360-11)
TX-RX UNIT (X57-3170-10)
CONTROL UNIT (X53-3040-13)
SCHEMATIC DIAGRAM
LEVEL DIAGRAM
BLOCK DIAGRAM
TERMINAL FUNCTIONS
TSU-5 (CTCSS UNIT)
SPECIFICATIONS
40
40
40
40
41
42
44
45
49
50
51
52
BACK COVER
13
16
30
31
32
33
39
39
39
40
220MHz FM TRANSCEIVER KENWOOD
TM-821A
SERVICE MANUAL
(C:1987-8 PRINTED IN JAPAN
B51-3305-00 (O) 1196
Knob (Button)
(K29-3058-04)
Metallic cabinet (Upper)
(A01-1021-03)
BRY¥an Frelds
Knob (Button)
(K27-0496-04) x2 BR Yond
Panel ass'y Knob (VOL, SQL) Microphone
(A20-2629-02) (K29-3061-04) x2 (T91-0359-05)
VFO/M MNMHz
vou
|
Low
KENWOOD0720mHe FM TRANSCEIVER TM 321A 7
4
2249809 sol we OWN uP
aSHIFT REV SCAN crcss TONE
Knob (Main) Knob (Button)
(K29-3060-04) (K29-3070-04)
Knob (Button) Knob (Button)
(K28-3069-04) (K29-3068-04)
Knob (Button) Knob (Button)
(K29-3065-04) (K29-3067-04)
CIRCUIT DESCRIPTION
SEMICONDUCTOR DATA
DESCRIPTION OF ELEMENTS
PARTS LIST
EXPLODED VIEW
PACKING
DISASSEMBLY
ADJUSTMENT
PC BOARD VIEWS
LCD ASS'Y (B38-0303-05)
VCO (X58-3090-1 1)
DRIVE (X59 312011)
APC (X59-3130-00)
CONTENTS
2
12
IF (X59-31 40-00)
SQL (X59-3150-00)
MIC (X59-3160-00)
VOL (X&9-3170-00)
FINAL UNIT (X45-1360-11)
TX-RX UNIT (X57-3170-10)
CONTROL UNIT (X53-3040-13)
SCHEMATIC DIAGRAM
LEVEL DIAGRAM
BLOCK DIAGRAM
TERMINAL FUNCTIONS
TSU-5 (CTCSS UNIT)
SPECIFICATIONS
40
40
40
40
41
42
44
45
49
50
51
52
BACK COVER
13
16
30
31
32
33
39
39
39
40

Manual&Scan&
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This was captured on a Canon DR-G2140 scanner which is a
~7500 USD unit circa 2021. You may note some artifacts and
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sensor glass, and are minor. The replacement glass is
about 250 USD if you’re feeling generous :-)
If you have a hard to find/out of print manual and would
like to make it available please reach out, I may be able
to scan and return it to you.
Thank you,
Bryan Fields, W9CR
[email protected]

-321A
CIRCUIT DESCRIPTION
Frequency configuration
The TM-321A utilizes PLL synthesizer system incorpo-
rating adigital VFO (See Fig. 1.}. The channel step can be
selected as 5, 10, 15, 20, or 25kHz.
The receiver operates as adouble conversion system.
Received signals are mixed with the first local oscillator
(189.175 ~194.170MHz) to produce the first intermediate
frequency of 30.825MHz. The first intermediate frequency
is mixed with the second local oscillator (30.370MHz) to
produce the second intermediate frequency of 455kHz.
The transmitter system consists of aPLL circuit in-
corporating adirect oscillator and direct divider. The
output is amplified by alinear amplifier prior to being
transmission.
220~225MHz
220~225MHz 1st MIX
ANT SW RF AMP
Receiver system
@General
incoming signals from the antenna pass through alow-
pass filter in the Transmitter Final unit and adiode trans-
mit/receive switch, then enter the receiver front end.
After passing through two antenna coils the signals are
amplified by aGaAs (galium arsenide) FET (Q1 :3SK184
(S)). Undesired signals are removed by a3-pole helical res-
onator (L3). The resulting signal is applied to the first
mixer Q2 :3SK131(V12}, which employs an Nchannel
MOS FET to obtain good 2-signal characteristics. In the
first mixer (Q2) the signai is mixed with the first local
oscillator from the PLL system to produce the first IF
signal of 30.825MHz, Interfering Adjacent channel inter-
ference is removed from the first IF signal by atwo-stage
monolithic crystal filter (MCF) (L6).
455kHz
CFW455F
MCF SP
MIX,IF,DET AF AMP
30.825MHz
189.175~ +30.370MHz
194,170MHz
PLL |
SYSTEM
PA AMP Tx amp 1wic
220,000~
224.995MHz MIC AMP
Fig. Frequency configuration
2
Fg.

TM-321A TM-321A
CIRCUIT DESCRIPTION CIRCUIT DESCRIPTION
awith PLL DT and CK lines
a
The first IF signal is amplified by Q3 :2SC2714(Y) ey
6
and fed to aspecial narrow-FM IC (TA7761F). Here the 7<
signal is mixed with the 30.370MHz frequency from the 4°
second local oscillator to produce the 455kHz second IF 3233
signal. This signal is sharpened by passing it through asix- S8
element ceramic filter (CFW455F). The signal is then 5&685
amplified by afive-stage jimiting amplifier contained in 2
IC1. This is followed by quadrature detection which is B588
also performed by IC1. Undesirable high-frequency com- or
-114 u24 2
ponents are removed from the detected signal by an active Table 1MCF (L71-0270-05) characteristics 42
2SREES 3
low-pass filter. The signal then passes through the audio (TX-RX unit L6) ae oN0
volume control, then is amplified by the audio power amp- aon WA Se
lifier (IC4), and apptied to the speaker. The circuit con- 3EP) SS, +Terars
figuration from detection onward is shown in Fig. 2. 9»ae ww
®Squelch circuit 55 o20*£
SOs
The noise component extracted from the detector out-
239
9
put is filtered to remove the second intermediate fre- Bs NO 2z
&=
quency component (455kHz), amplified twice, and is then ue me"
fed to the rectifier. After rectification, the signal passes <6 88 »
wD
through the squelch control to the audio limiter circuit, €g22 5aq
©S-meter circuit ZEN
2*
a
The S-meter output voltage of the special narrow-FM N
5&
iC (TA7761F) is amplified by an inverting amplifier, s"
38
fed to the Control unit The mieroprocessor converts Table 2Ceramic fitter CFW455F (L72-0315-05) ©ae a
the analog voltage to adigital signal that is useddto contro characteristics (TX-RX unit L10) 6
the LCD bar meter. 3
083
>2
0
orée
+ue 5g3
0
a
>
E
by SY
3
Bs
0=3a
aoo
Item Rating
Nominal center frequency (fo) 30.825MHz
Pass bandwidth £7.5kHz or more at 3dB
Attenuation bandwidth *28kHz or ess at 40dB
60dB or more within +1MHz
Guaranteed attenuation
40dB or more squrious
Ripple 1.50B or ess
insertion loss 3dB or less
Terminating impedance 1.4k2/1PF 03
oN oso 3
Fig. 2Circuits from detector output onward
1st-stage output
a
Noise amp.
CONTROL UNIT (X53-3040-13}
Item Rating
Nominal center frequency 455kHz+1kHz
6dB bandwidth +6kHz or more (from 455kHz)
50dB bandwidth +12,5kHz or less (from 455k Hz}
Ripple
(within 455+4kHz) 3dB or less
Insertion loss 6dB or ess
Guaranteed attenuation
35dB or less
(within 4554100kHz)
1/0 impedance 2.0k2
sa
then ay
b
oro
an
seu
ao
eo
eu
oz
TM-321A TM-321A
CIRCUIT DESCRIPTION CIRCUIT DESCRIPTION
awith PLL DT and CK lines
a
The first IF signal is amplified by Q3 :2SC2714(Y) ey
6
and fed to aspecial narrow-FM IC (TA7761F). Here the 7<
signal is mixed with the 30.370MHz frequency from the 4°
second local oscillator to produce the 455kHz second IF 3233
signal. This signal is sharpened by passing it through asix- S8
element ceramic filter (CFW455F). The signal is then 5&685
amplified by afive-stage jimiting amplifier contained in 2
IC1. This is followed by quadrature detection which is B588
also performed by IC1. Undesirable high-frequency com- or
-114 u24 2
ponents are removed from the detected signal by an active Table 1MCF (L71-0270-05) characteristics 42
2SREES 3
low-pass filter. The signal then passes through the audio (TX-RX unit L6) ae oN0
volume control, then is amplified by the audio power amp- aon WA Se
lifier (IC4), and apptied to the speaker. The circuit con- 3EP) SS, +Terars
figuration from detection onward is shown in Fig. 2. 9»ae ww
®Squelch circuit 55 o20*£
SOs
The noise component extracted from the detector out-
239
9
put is filtered to remove the second intermediate fre- Bs NO 2z
&=
quency component (455kHz), amplified twice, and is then ue me"
fed to the rectifier. After rectification, the signal passes <6 88 »
wD
through the squelch control to the audio limiter circuit, €g22 5aq
©S-meter circuit ZEN
2*
a
The S-meter output voltage of the special narrow-FM N
5&
iC (TA7761F) is amplified by an inverting amplifier, s"
38
fed to the Control unit The mieroprocessor converts Table 2Ceramic fitter CFW455F (L72-0315-05) ©ae a
the analog voltage to adigital signal that is useddto contro characteristics (TX-RX unit L10) 6
the LCD bar meter. 3
083
>2
0
orée
+ue 5g3
0
a
>
E
by SY
3
Bs
0=3a
aoo
Item Rating
Nominal center frequency (fo) 30.825MHz
Pass bandwidth £7.5kHz or more at 3dB
Attenuation bandwidth *28kHz or ess at 40dB
60dB or more within +1MHz
Guaranteed attenuation
40dB or more squrious
Ripple 1.50B or ess
insertion loss 3dB or less
Terminating impedance 1.4k2/1PF 03
oN oso 3
Fig. 2Circuits from detector output onward
1st-stage output
a
Noise amp.
CONTROL UNIT (X53-3040-13}
Item Rating
Nominal center frequency 455kHz+1kHz
6dB bandwidth +6kHz or more (from 455kHz)
50dB bandwidth +12,5kHz or less (from 455k Hz}
Ripple
(within 455+4kHz) 3dB or less
Insertion loss 6dB or ess
Guaranteed attenuation
35dB or less
(within 4554100kHz)
1/0 impedance 2.0k2
sa
then ay
b
oro
an
seu
ao
eo
eu
oz

TM-321A TM-321A
CIRCUIT DESCRIPTION
Transmitter system
@General
In the transmitter system the desired frequency is pro-
duced directly by an oscillator. Frequency modulation is
obtained directly thru the use of avaractor diode.
@Modulation circuit
Audio signals from the microphone are applied to a
three-stage operational amplifier which adds preemphasis,
performs amplification and limiting, and includes asplatter
filter to remove undesired high-frequency components.
After amplification by the operational amplifier, part of
the audio signal is applied to the microphone check circuit
used in the low-power mode.
In the FM modulation circuit, the frequency of the
VCO is directly modulated by avaractor diode.
q ¥
RS
Ra
RM H/C
METER
Roe ae
TX-RX UNIT
TO FINAL UNIT
@Preamplifier stage circuit
The output from the VCO enters the linear amptifier,
which is capable of high-quality signal amplification
because it operates entirely in linear mode, APC, (Auto-
matic Power Control) is performed by controlling the
collector voltage of the 3stage fina! preamplifier stage.
@Power amplifier circuit
The drive signal is applied to the power module and
amplified to the required fevet. In the model TM-321A
heat is dissipated efficiently by alarge mechanically strong
heatsink,
@APC and SWR protection circuits
Fig. 3shows the basic ALC (Automatic Level Control)
and SWR (Standing Wave Ratio) protection circuits. The
SWR protection circuit incorporates aCM coupler that
detects any reflected power caused by mismatching of the
antenna. After detection and amplification, this circuit
acts to lower the output contro! voltage, which protects
the power module by reducing the gain. The automatic
power control (APC) circuit incorporates adiode that is
used to detect aportion of the output from the power
module. The detected signal is amplified and is then used
to control the power control voltage. The control voitage
is inversely proportional to the output, so aconstant
output level is maintained.
FINAL UNIT
Fig. 3APC and SWR protection circuits
Table 3Power module M57774 absolute maximum ratings
(Finat unit Q1)
CIRCUIT DESCRIPTION
PLL synthesizer
Fig. 4is the PLL system block diagram. The trans-
mitter and. receiver systems of the TM-321A has independ-
ent VCOs and PLLs, but share acommon low-pass filter.
The VCOs are configured as subunits. This construc-
tion minimizes outside influence and improves frequency
stability.
DATA
CLOCK
para
LPF
age
013,14 (c2
Meag5gP
TXVCO
FCONT
03
1SV166
To provide 5, 10, 15, 20, and 25kHz steps, acom-
parison frequency of 5kHz is obtained by dividing the 12.8
MHz frequency of the reference oscillator by 2560. In
both the transmitter and receiver systems the target
frequency is produced directly by the VCO, passed through
one amplifier stage, then applied to apulse-swallow PLL IC
that divides the frequency, performs phase comparison,
and ocks the frequency.
The reference frequency division ratios (four values)
and comparison frequency divison ratio are supplied to
the PLL IC (M54959P) as external serial data. An internal
dual-modulus (1/128 and 1/129) prescaler enables the
entire pulse-swallow PLL circuit to be implemented on
asingle chip. (See Fig. 5.) The switching functions
(SW1 and SW2) of the PLL IC are used to switch between
the 8R (receive) and 8T (transmit) operating voltages
in the transmit and receive modes.
The switch controls are applied together with frequency
division ratio data from the Control unit.
RESET
ait £13(12.8MHz)
2SC2714
2SC2714
a2
ZSK5O8
APC
OIFF. AMP RE PRO/APC CONTROL Sw AMP
RX 189,175~194.170MHz
at a2 8T fat Nout: ai7
DRIVE 28C2712 28C2757 28C2714
+8 AVR
4
(oS) TX 220, 224 Hz
RX VCO
FCONT
aa
2SK508
se
1SV166
DRIVE (X59-3120-11)
Q20 ANT
PRO
RF
APC SND (OB
TX-RX UNIT
us Ros ves 10 VCO (X58-3000-11}
TRI
Fig. 4PLL system block diagram To unlock contro! circuit
12.8MH
178 divider HH trier divider vices 12.8MHe
4Comparison fr
(72it binary}
TIN Programmable divider] fIN/N To LPF
(10-bit binary)
VCO nput 2-modulus 7fio 2
prescaler Dats latch {21-bit}
(1/128, 1/128)
21
5Shift regiver (21-bit)
NUL
Low
sk
15
kdetect
osc
by 2560 Veo
frequency phase 1
1/A divider selection detector
21 cutee counter b- Latch signal
3
aa:
Specifications
Item Symbol Unit Condition
(°c) M57774
Veo 25 17
Operating voltage
Current consumption Iec 25 7
Input power pin 25 2G6=ZL=502 0.6(Vec, $12.5V)
Output power Po 25 ZG=Z=502 40
Case temperature (operating) Telop) °c -30~+110
°c -40~ +110
Storage temperature Tstg
Tc AMP 2
13
4
Beta input
from Control unit
Fig.5 PLL IC ;M54959P block diagram
To8T TosR
control control
circuit circuit
TM-321A TM-321A
CIRCUIT DESCRIPTION
Transmitter system
@General
In the transmitter system the desired frequency is pro-
duced directly by an oscillator. Frequency modulation is
obtained directly thru the use of avaractor diode.
@Modulation circuit
Audio signals from the microphone are applied to a
three-stage operational amplifier which adds preemphasis,
performs amplification and limiting, and includes asplatter
filter to remove undesired high-frequency components.
After amplification by the operational amplifier, part of
the audio signal is applied to the microphone check circuit
used in the low-power mode.
In the FM modulation circuit, the frequency of the
VCO is directly modulated by avaractor diode.
q ¥
RS
Ra
RM H/C
METER
Roe ae
TX-RX UNIT
TO FINAL UNIT
@Preamplifier stage circuit
The output from the VCO enters the linear amptifier,
which is capable of high-quality signal amplification
because it operates entirely in linear mode, APC, (Auto-
matic Power Control) is performed by controlling the
collector voltage of the 3stage fina! preamplifier stage.
@Power amplifier circuit
The drive signal is applied to the power module and
amplified to the required fevet. In the model TM-321A
heat is dissipated efficiently by alarge mechanically strong
heatsink,
@APC and SWR protection circuits
Fig. 3shows the basic ALC (Automatic Level Control)
and SWR (Standing Wave Ratio) protection circuits. The
SWR protection circuit incorporates aCM coupler that
detects any reflected power caused by mismatching of the
antenna. After detection and amplification, this circuit
acts to lower the output contro! voltage, which protects
the power module by reducing the gain. The automatic
power control (APC) circuit incorporates adiode that is
used to detect aportion of the output from the power
module. The detected signal is amplified and is then used
to control the power control voltage. The control voitage
is inversely proportional to the output, so aconstant
output level is maintained.
FINAL UNIT
Fig. 3APC and SWR protection circuits
Table 3Power module M57774 absolute maximum ratings
(Finat unit Q1)
CIRCUIT DESCRIPTION
PLL synthesizer
Fig. 4is the PLL system block diagram. The trans-
mitter and. receiver systems of the TM-321A has independ-
ent VCOs and PLLs, but share acommon low-pass filter.
The VCOs are configured as subunits. This construc-
tion minimizes outside influence and improves frequency
stability.
DATA
CLOCK
para
LPF
age
013,14 (c2
Meag5gP
TXVCO
FCONT
03
1SV166
To provide 5, 10, 15, 20, and 25kHz steps, acom-
parison frequency of 5kHz is obtained by dividing the 12.8
MHz frequency of the reference oscillator by 2560. In
both the transmitter and receiver systems the target
frequency is produced directly by the VCO, passed through
one amplifier stage, then applied to apulse-swallow PLL IC
that divides the frequency, performs phase comparison,
and ocks the frequency.
The reference frequency division ratios (four values)
and comparison frequency divison ratio are supplied to
the PLL IC (M54959P) as external serial data. An internal
dual-modulus (1/128 and 1/129) prescaler enables the
entire pulse-swallow PLL circuit to be implemented on
asingle chip. (See Fig. 5.) The switching functions
(SW1 and SW2) of the PLL IC are used to switch between
the 8R (receive) and 8T (transmit) operating voltages
in the transmit and receive modes.
The switch controls are applied together with frequency
division ratio data from the Control unit.
RESET
ait £13(12.8MHz)
2SC2714
2SC2714
a2
ZSK5O8
APC
OIFF. AMP RE PRO/APC CONTROL Sw AMP
RX 189,175~194.170MHz
at a2 8T fat Nout: ai7
DRIVE 28C2712 28C2757 28C2714
+8 AVR
4
(oS) TX 220, 224 Hz
RX VCO
FCONT
aa
2SK508
se
1SV166
DRIVE (X59-3120-11)
Q20 ANT
PRO
RF
APC SND (OB
TX-RX UNIT
us Ros ves 10 VCO (X58-3000-11}
TRI
Fig. 4PLL system block diagram To unlock contro! circuit
12.8MH
178 divider HH trier divider vices 12.8MHe
4Comparison fr
(72it binary}
TIN Programmable divider] fIN/N To LPF
(10-bit binary)
VCO nput 2-modulus 7fio 2
prescaler Dats latch {21-bit}
(1/128, 1/128)
21
5Shift regiver (21-bit)
NUL
Low
sk
15
kdetect
osc
by 2560 Veo
frequency phase 1
1/A divider selection detector
21 cutee counter b- Latch signal
3
aa:
Specifications
Item Symbol Unit Condition
(°c) M57774
Veo 25 17
Operating voltage
Current consumption Iec 25 7
Input power pin 25 2G6=ZL=502 0.6(Vec, $12.5V)
Output power Po 25 ZG=Z=502 40
Case temperature (operating) Telop) °c -30~+110
°c -40~ +110
Storage temperature Tstg
Tc AMP 2
13
4
Beta input
from Control unit
Fig.5 PLL IC ;M54959P block diagram
To8T TosR
control control
circuit circuit

CIRCUIT DESCRIPTION
At 220MHz, fVCO (RX) has the following relationship to
the various frequency division ratios :
f¥CO=(220-30.825)=[(n X128) +AJ Xfosc/R
where, fVCO :Frequency output by the VCO
n: 10-bit binary programmable counter setting
A: 7-bit binary programmable counter setting
fosc :12.8MHz reference oscillator
R:14-bit binary programmable counter setting
(2560)
If n=295 and A= 75, then;
fV¥CO= [(295 X128) +75] X12800/2560
=(37760 +75] X5
=189175kHz=189.175MHz
DRIVE(X59-3120-11)
1
8V when PLL is locked
TM-32
@Unlock detector circuit
Whenever the PLL is unlocked, pin 10 of the PLL IC goes
high ("H') (5.5V), turning off Q15 so that Q1 and Q2
in the module unit (drive unit) turn OFF. The result is
that during receive Q17 is OFF, and during transmit
Q4 and Q5 in the module unit are OFF. This halts trans-
mit, preventing unwanted radiation from the antenna.
(See Fig. 6.)
PLL LOCKED Sw
in transmit mode
OV when PLL is unlocked 01
in transmit mode
Qi
W2!
RS R7 R17
on
acog LTT
Q2 |Q4
R3 Re C10 cs Q5
8T
Sw
©
QUT
wo
sw
11
j
10 ae 4321
aFROM PLL OUT TO DRIVE TR O19.
8V when PLL locked in receive mode
eR
OV when PLL unlocked in receive mode
c79
1c2 1.4V when PLL is locked 2
OV when PLL is unlocked
M54959P Q17 >To 1st RX mixer
cso
5V
4
«
Og
%UNLOCK C69 discharge is delayed when
IN
8T
R89
5V
OV) R71
D6
R62 Ov
5.5V)
Q15 sv
Low (OV) when PLL is locked
High (5.5V) when PLL is unlocked
voltage rises and advanced when
voltage falls.
Fig. 6PLL unlock detector circuit
7

-321A
CIRCUIT DESCRIPTION
Digital control unit
@General
The control unit consists of amicroprocessor, input
keys, peripheral circuits, and adisplay. The single micro-
processor (1C3) controls all transceiver functions. The pin
assignments of the microprocessor are listed on the
Table 4.
@Keys and rotary encoder input circuits
Fig. 7shows the input circuit for the keys and rotary
encoder. Data from the front panel keys, microphone
keys, and rotary encoder are applied directly to the
microprocessor. MIC UP
Mic SS
Mic DOWN:
Fig. 7Key and rotary encoder input circuits
Terminal Terminal
Name 1/0 Logic Function Name HO Logic Function
P41 35 TI1
P40 36 TIO Not used.
37 P23
P53
P52 Digital output of D-A conv.
Sauelch control during remote
P22
P51 control.
39 P21 P50 Shift register strobe.
RESET Reset input. 40 PTOO Beep oscillator output.
X2 Microphone DOWN switch input/
X1
4.194304MHz crystal oscillator. 41 P03/SI L/-
serial data input.
10 P63 Microphone PTT switch input/
Not used. 42 P02/SO 1/0 L/-
11 P62 serial data input.
Microphone UP switch input/
12 P61
CTCSS shift register reset
43 P01/SCK L/-
serial data input.
13 P60
44 INT4 Backup detect input.
45 P123 SHIFT switch input.
14 P73 LCD driver data. 46 P122 M.IN switch input.
15 P72 LCD driver clock. 47 P121 VFO/M select switch input.
16 P71 LCD driver enable. 48 Pi20 REV switch input.
7P70 Not used. 49 P133 Frequency step select switch input
50 P132
18 P83 SCAN switch input.
19 P82 CTCSS switch input.
51 P131
20 P8t Directional input.
21 P80 52 P130 TONE switch input.
22 P93 Not used. 53 P143 Puil-down pin.
23 P92 PLL and shift register clock. P142
24 P91 55 P141
PLL and shift register data.
Not used.
25 P90 PLL enable. 56 P140
26 Vss GND terminal (OV). 57 NC
27 P13 BUSY input. 58 VDD Power supply pin (5V).
28 INT2 59 P33 GND terminal (OV).
Encoder input.
29 INT1
60 P32
Tone detect input (when CTCSS
Remote connection detect input is on
30 INTO
(only when connected). 61 P31 CTCSS IC data
31 PTH03
Not used.
62 P30 CTCSS IC clock.
32 PTH02 63 P43
DAC digital data output.
33 PTH01 RF meter analog input. 64 P42
34 PTHOO Smeter analog input.
1
2
3
38
4
5
6
7
8
54
Table 4uPD75106G-508-1B pin assignments (Control unit 1C3)
-321A
CIRCUIT DESCRIPTION
Digital control unit
@General
The control unit consists of amicroprocessor, input
keys, peripheral circuits, and adisplay. The single micro-
processor (1C3) controls all transceiver functions. The pin
assignments of the microprocessor are listed on the
Table 4.
@Keys and rotary encoder input circuits
Fig. 7shows the input circuit for the keys and rotary
encoder. Data from the front panel keys, microphone
keys, and rotary encoder are applied directly to the
microprocessor. MIC UP
Mic SS
Mic DOWN:
Fig. 7Key and rotary encoder input circuits
Terminal Terminal
Name 1/0 Logic Function Name HO Logic Function
P41 35 TI1
P40 36 TIO Not used.
37 P23
P53
P52 Digital output of D-A conv.
Sauelch control during remote
P22
P51 control.
39 P21 P50 Shift register strobe.
RESET Reset input. 40 PTOO Beep oscillator output.
X2 Microphone DOWN switch input/
X1
4.194304MHz crystal oscillator. 41 P03/SI L/-
serial data input.
10 P63 Microphone PTT switch input/
Not used. 42 P02/SO 1/0 L/-
11 P62 serial data input.
Microphone UP switch input/
12 P61
CTCSS shift register reset
43 P01/SCK L/-
serial data input.
13 P60
44 INT4 Backup detect input.
45 P123 SHIFT switch input.
14 P73 LCD driver data. 46 P122 M.IN switch input.
15 P72 LCD driver clock. 47 P121 VFO/M select switch input.
16 P71 LCD driver enable. 48 Pi20 REV switch input.
7P70 Not used. 49 P133 Frequency step select switch input
50 P132
18 P83 SCAN switch input.
19 P82 CTCSS switch input.
51 P131
20 P8t Directional input.
21 P80 52 P130 TONE switch input.
22 P93 Not used. 53 P143 Puil-down pin.
23 P92 PLL and shift register clock. P142
24 P91 55 P141
PLL and shift register data.
Not used.
25 P90 PLL enable. 56 P140
26 Vss GND terminal (OV). 57 NC
27 P13 BUSY input. 58 VDD Power supply pin (5V).
28 INT2 59 P33 GND terminal (OV).
Encoder input.
29 INT1
60 P32
Tone detect input (when CTCSS
Remote connection detect input is on
30 INTO
(only when connected). 61 P31 CTCSS IC data
31 PTH03
Not used.
62 P30 CTCSS IC clock.
32 PTH02 63 P43
DAC digital data output.
33 PTH01 RF meter analog input. 64 P42
34 PTHOO Smeter analog input.
1
2
3
38
4
5
6
7
8
54
Table 4uPD75106G-508-1B pin assignments (Control unit 1C3)

TM-32
CIRCUIT DESCRIPTION
@Display circuit according to serial data sent from pins P71 to P73 of the
Located in the LCD assembly (Fig. 8), the display microprocessor to the LCD driver. Fig. 9shows the
circuit consists of the LCD driver, its peripheral circuits, common output and segment output signals of the LCD
and the LCD. The LCD is driven with a50% duty cycle driver.
wo
zn
B|2+ oaoafe)
OG G& aw a
4++2
213
+
Vico
GND
VicD
GND
Only the COM1
LeD
side is ON. GND
COM1 and COM2
side is ON,
GND
Only the COM2
side is ON.
GND
COM1 and COM2
side are OFF. GND
1
fosc/s12 SEC
VLCD
Fig. 9LCD driver common and segment
output signals
Fig. 8LCD ass'y (B38-0303-05)
9
TM-32
CIRCUIT DESCRIPTION
@Display circuit according to serial data sent from pins P71 to P73 of the
Located in the LCD assembly (Fig. 8), the display microprocessor to the LCD driver. Fig. 9shows the
circuit consists of the LCD driver, its peripheral circuits, common output and segment output signals of the LCD
and the LCD. The LCD is driven with a50% duty cycle driver.
wo
zn
B|2+ oaoafe)
OG G& aw a
4++2
213
+
Vico
GND
VicD
GND
Only the COM1
LeD
side is ON. GND
COM1 and COM2
side is ON,
GND
Only the COM2
side is ON.
GND
COM1 and COM2
side are OFF. GND
1
fosc/s12 SEC
VLCD
Fig. 9LCD driver common and segment
output signals
Fig. 8LCD ass'y (B38-0303-05)
9

-321A
CIRCUIT DESCRIPTION
@Reset backup circuit
Fig. 10 shows the reset backup circuit. When the
transceiver is turned ON, 3.0V is applied at the INT4
pin causing !C3 to enter the backup mode.
Ci6
(C2 timing chart
Pin 1
Pin 3
Fig. 10 Reset and backup circuit
10
@PLL data output
PLL data is supplied from pins P92 (CK}, P91 (DT),
and P90 (RST) of the microprocessor. Fig. 11 shows
the data transfer format. Fig. 12 shows the data con-
figuration.
21bit
OT
MSB LSB
RS
Fig. 11 PLL data transfer format
LSB MsB
12 3 451617
ratio A
Main counter
frequency division
ratio N
Port setting,
comparison frequency
selection
Shift register
SC
D3
D2
OUT
RESET
R16
32
CK
ot
90
2
44
7
IN
INT4
7
10 11 12 13 14 15 16 17 18 19 20 21
Pulse swallow counter
frequency division
a21 21 25 a21 221 21 2
01 02 D3
The 21-bit data is converted by the procedure below,
4.25V-
1. Frequency division ratio data A, N(17 bits)
F(RX display
-
30.825MHz) =
[(N X128) +A] X12.8MH2/ref
N:Frequency division ratio of main 10-bit counter
A: Frequency division ratio of 7-bit pulse swallow counter
td td
2. Comparison frequency (ref) selection (2 bits)
Data
Phase comparison frequency
01 D2
LL5kHz 5, 10, 15, 20 or 25kHz steps
3. Switch selection (2 bits)
Data Output port
D3 D4 SW1 sw2
HRX mode
HLL
LHLHTX mode
Fig. 12 PLL data configuration
-321A
CIRCUIT DESCRIPTION
@Reset backup circuit
Fig. 10 shows the reset backup circuit. When the
transceiver is turned ON, 3.0V is applied at the INT4
pin causing !C3 to enter the backup mode.
Ci6
(C2 timing chart
Pin 1
Pin 3
Fig. 10 Reset and backup circuit
10
@PLL data output
PLL data is supplied from pins P92 (CK}, P91 (DT),
and P90 (RST) of the microprocessor. Fig. 11 shows
the data transfer format. Fig. 12 shows the data con-
figuration.
21bit
OT
MSB LSB
RS
Fig. 11 PLL data transfer format
LSB MsB
12 3 451617
ratio A
Main counter
frequency division
ratio N
Port setting,
comparison frequency
selection
Shift register
SC
D3
D2
OUT
RESET
R16
32
CK
ot
90
2
44
7
IN
INT4
7
10 11 12 13 14 15 16 17 18 19 20 21
Pulse swallow counter
frequency division
a21 21 25 a21 221 21 2
01 02 D3
The 21-bit data is converted by the procedure below,
4.25V-
1. Frequency division ratio data A, N(17 bits)
F(RX display
-
30.825MHz) =
[(N X128) +A] X12.8MH2/ref
N:Frequency division ratio of main 10-bit counter
A: Frequency division ratio of 7-bit pulse swallow counter
td td
2. Comparison frequency (ref) selection (2 bits)
Data
Phase comparison frequency
01 D2
LL5kHz 5, 10, 15, 20 or 25kHz steps
3. Switch selection (2 bits)
Data Output port
D3 D4 SW1 sw2
HRX mode
HLL
LHLHTX mode
Fig. 12 PLL data configuration

TM-321A
CIRCUIT DESCRIPTION
@Alert and electronic volume control output (when
optional remote controller is connected)
The alert and electronic volume control outputs are
provided by pins P92 (CK), P91 (DT), and P21 (ST) of
the microprocessor to the 8-bit shift register (IC3) in
the TX-RX unit. P92 (CK) and P91 (DT) are also used for
the PLL data. Fig. 13 shows the data transfer format.
Fig. 14 shows the data configuration.
8bit
ok
||
DT
MSB LSB
sT
Fig. 13 Data transfer format for alert and
electronic volume control
01 02 D3 04 05 Ds D7 08
Electronic volume
control D6 to D8 when the
DOWN remote controller
(option) is connected.
Alert control
Fig. 14 Data configuration for alert and
electronic volume control
@Tone output
The outputs from pins P40 to P43 and P50 to P53
of the microprocessor are applied to aladder resistance
network (IC4) which converts these signals into an analog
waveform with 38 possible tone frequencies combinations
67.0 to 250.3Hz. Fig. 15 shows the internal configuration
of IC4.
@S-meter and RF meter input
The analog voltage of the S-meter is applied to pin
PTHOO of the microprocessor, and the analog voltage of
the RF meter to pin PTH01, After 4-bit (16-step) analog-
to-digital conversion, the resulting signal is sent to the
display.
@Busy input
When squelch is ON and an input signal is present, a
low input lights the busy indicator.
CTCSS unit (option) input and output
The microprocessor sends data from pins P30, P31, and
P61 to the CTCSS unit. Fig. 16 shows the data transfer
format. Fig. 17 shows the data configuration. When atone
is detected from the CTCSS unit, aHis applied to pin
P32 of the microprocessor to open the squelch.
S8bit
cTD
MSB LSB
CTS
UP
Fig. 16 CTCSS data transfer format
CTCSS unit MN6520 tone frequency select data
D1} D2; D3; D4} DS DE
Ex.885Hz LH HH
Fig. 17 CTCSS data configuration
20K 89
@Remote control (RC-10) (option) input and output
When the RC-10 remste control unit is connected a
"H" is applied to pin INTO of the microprocessor, switch-
ing the following pins to the functions indicated:
P03 >SI: Serial data input pin
P02 >SO -: Serial data output pin
P01 >SCK :Serial clock input/output pin
P53
Tone output jo 20K
P52
7
11 20K =7 20K 6
12 2OK =f 20K 5
PSO
131 20K 4
P43
14 20K 3
P42
15 2OK =f 20K 2
16 2OK =7 20K 1
P40
Fig. 15 Internal configuration of KRR-C001 ladder resistance network
(Control unit 1C4) 11
TM-321A
CIRCUIT DESCRIPTION
@Alert and electronic volume control output (when
optional remote controller is connected)
The alert and electronic volume control outputs are
provided by pins P92 (CK), P91 (DT), and P21 (ST) of
the microprocessor to the 8-bit shift register (IC3) in
the TX-RX unit. P92 (CK) and P91 (DT) are also used for
the PLL data. Fig. 13 shows the data transfer format.
Fig. 14 shows the data configuration.
8bit
ok
||
DT
MSB LSB
sT
Fig. 13 Data transfer format for alert and
electronic volume control
01 02 D3 04 05 Ds D7 08
Electronic volume
control D6 to D8 when the
DOWN remote controller
(option) is connected.
Alert control
Fig. 14 Data configuration for alert and
electronic volume control
@Tone output
The outputs from pins P40 to P43 and P50 to P53
of the microprocessor are applied to aladder resistance
network (IC4) which converts these signals into an analog
waveform with 38 possible tone frequencies combinations
67.0 to 250.3Hz. Fig. 15 shows the internal configuration
of IC4.
@S-meter and RF meter input
The analog voltage of the S-meter is applied to pin
PTHOO of the microprocessor, and the analog voltage of
the RF meter to pin PTH01, After 4-bit (16-step) analog-
to-digital conversion, the resulting signal is sent to the
display.
@Busy input
When squelch is ON and an input signal is present, a
low input lights the busy indicator.
CTCSS unit (option) input and output
The microprocessor sends data from pins P30, P31, and
P61 to the CTCSS unit. Fig. 16 shows the data transfer
format. Fig. 17 shows the data configuration. When atone
is detected from the CTCSS unit, aHis applied to pin
P32 of the microprocessor to open the squelch.
S8bit
cTD
MSB LSB
CTS
UP
Fig. 16 CTCSS data transfer format
CTCSS unit MN6520 tone frequency select data
D1} D2; D3; D4} DS DE
Ex.885Hz LH HH
Fig. 17 CTCSS data configuration
20K 89
@Remote control (RC-10) (option) input and output
When the RC-10 remste control unit is connected a
"H" is applied to pin INTO of the microprocessor, switch-
ing the following pins to the functions indicated:
P03 >SI: Serial data input pin
P02 >SO -: Serial data output pin
P01 >SCK :Serial clock input/output pin
P53
Tone output jo 20K
P52
7
11 20K =7 20K 6
12 2OK =f 20K 5
PSO
131 20K 4
P43
14 20K 3
P42
15 2OK =f 20K 2
16 2OK =7 20K 1
P40
Fig. 15 Internal configuration of KRR-C001 ladder resistance network
(Control unit 1C4) 11

321A
SEMICONDUCTOR DATA
Electronic volume LC7532M (VOL IC1)
Electric characteristics
Item Symbol Conditions Specifications Unit
Min. Typ Max
VDD=3V, RL=50kQ2,
THD1 f=1kHz, VR MAX, 0.1 0.5 %
VIN=-20dBV
High-frequency distortion
VDD=2.1V, RL=50kQ,
THD2 f=1kHz, VR MAX, 0.3 1.0 %
VIN=-20dBV
Output in low-power mode XOUT At OdBm input :f=1kHz,RL=51kQ -95 dB
RIN UP,DN,CE 100 400 kQ
Input impedance
IDD(1) VDD=3V when operating 0.035 mA
Current consumption IDD (2) VDD=3V, CE="L" BMA
60
1
4
®Block diagram
INIT IN
CR
CE
SW15
6) C.T
counter
UP/DN 4to16
decoder sw
osc
10
swo
Reset
UP 11
DN 9
69
3VM
15
VDD VSS
12
321A
SEMICONDUCTOR DATA
Electronic volume LC7532M (VOL IC1)
Electric characteristics
Item Symbol Conditions Specifications Unit
Min. Typ Max
VDD=3V, RL=50kQ2,
THD1 f=1kHz, VR MAX, 0.1 0.5 %
VIN=-20dBV
High-frequency distortion
VDD=2.1V, RL=50kQ,
THD2 f=1kHz, VR MAX, 0.3 1.0 %
VIN=-20dBV
Output in low-power mode XOUT At OdBm input :f=1kHz,RL=51kQ -95 dB
RIN UP,DN,CE 100 400 kQ
Input impedance
IDD(1) VDD=3V when operating 0.035 mA
Current consumption IDD (2) VDD=3V, CE="L" BMA
60
1
4
®Block diagram
INIT IN
CR
CE
SW15
6) C.T
counter
UP/DN 4to16
decoder sw
osc
10
swo
Reset
UP 11
DN 9
69
3VM
15
VDD VSS
12

TM-321A
DESCRIPTION OF ELEMENTS
FINAL UNIT (X45-1360-11)
Function
Element Description
Qi Power amplifier Boosts power to the required level. M57774.
D1 Protection against reverse power connection
D2,D3 Transmit/receive select ON during transmit.
D4 High-frequency output voltage level detect Detects high-frequency output level and controls output in the APC circuit.
D5 Reflected power detector Adjustable with VR1.
CONTROL UNIT (X53-3040-13)
Element Function Description
IC1 6V AVR
{C2 Reset IC Outputs Reset signal and detects low voltage.
IC3 Microprocessor Controls frequencies and general set functions.
Converts digital data from IC3 (P40 to P43, P50 to P53) to an analog tone
IC4 Tone DAC
frequency.
Qi Squeich switching Switches squelch on/off when remote controller is connected.
Q2 Switching Controls the microprocessor''s backup detect input.
D1 Reverse current protection Protects against external voltage applied to pin 5of the microprocessor.
D2(1/2) Microprocessor protection Protects against static surge.
D2(2/2) Voltage drop
D3(1/2) Reverse current protection Prevents current from flowing to the backup battery.
D3(2/2) Reverse current protection Prevents backup battery current from flowing to inappropriate circuits.
D4 Microprocessor protection Protects against static surge.
TX-RX UNIT (X57-3170-10)
Element Function Description
IC1 8V AVR
IC2 PLL Pulse-swallow type phase-locked loop.
IC3 Shift register Controls, band switching, and electronic volume functions.
IC4 AF amplifier Speaker output.
Qi High-frequency amplifier Operates in receive mode (144MHz).
Q2 First mixer Converts the received frequency into the 30.825MHz.
Q3 High-frequency amplifier First intermediate frequency amplifies.
04 AF muting Operates when CTCSS is ON, when SOS is high, and in transmit mode.
Q5 8R switching ON in receive mode.
06 8T switching ON in transmit mode.
Q7 8T switching control ON in transmit mode.
Q8 8R switching control ON in receive mode.
Q9 Constant-voltage control 5V power supply for PLL.
Q11 High-frequency amplifier Amplifies 12.8MHz to the level required for the PLL
Q13,014 PLL low-pass filter
Q15 PLL unlock control ON when the PLL is ocked.
Q16 Amplifies the VCO output to the level required for the PLL.
High-frequency amplifier
Q17 High-frequency amplifier Amplifies the VCO output to the level required for input to the 1st IF mixer (Q2)
019 Transmit driver (power amplifier) Amplifies to the level required for input to the final unit power module.
Q20 +B(DB) AVR of Q19 Operates in transmit mode.
13
TM-321A
DESCRIPTION OF ELEMENTS
FINAL UNIT (X45-1360-11)
Function
Element Description
Qi Power amplifier Boosts power to the required level. M57774.
D1 Protection against reverse power connection
D2,D3 Transmit/receive select ON during transmit.
D4 High-frequency output voltage level detect Detects high-frequency output level and controls output in the APC circuit.
D5 Reflected power detector Adjustable with VR1.
CONTROL UNIT (X53-3040-13)
Element Function Description
IC1 6V AVR
{C2 Reset IC Outputs Reset signal and detects low voltage.
IC3 Microprocessor Controls frequencies and general set functions.
Converts digital data from IC3 (P40 to P43, P50 to P53) to an analog tone
IC4 Tone DAC
frequency.
Qi Squeich switching Switches squelch on/off when remote controller is connected.
Q2 Switching Controls the microprocessor''s backup detect input.
D1 Reverse current protection Protects against external voltage applied to pin 5of the microprocessor.
D2(1/2) Microprocessor protection Protects against static surge.
D2(2/2) Voltage drop
D3(1/2) Reverse current protection Prevents current from flowing to the backup battery.
D3(2/2) Reverse current protection Prevents backup battery current from flowing to inappropriate circuits.
D4 Microprocessor protection Protects against static surge.
TX-RX UNIT (X57-3170-10)
Element Function Description
IC1 8V AVR
IC2 PLL Pulse-swallow type phase-locked loop.
IC3 Shift register Controls, band switching, and electronic volume functions.
IC4 AF amplifier Speaker output.
Qi High-frequency amplifier Operates in receive mode (144MHz).
Q2 First mixer Converts the received frequency into the 30.825MHz.
Q3 High-frequency amplifier First intermediate frequency amplifies.
04 AF muting Operates when CTCSS is ON, when SOS is high, and in transmit mode.
Q5 8R switching ON in receive mode.
06 8T switching ON in transmit mode.
Q7 8T switching control ON in transmit mode.
Q8 8R switching control ON in receive mode.
Q9 Constant-voltage control 5V power supply for PLL.
Q11 High-frequency amplifier Amplifies 12.8MHz to the level required for the PLL
Q13,014 PLL low-pass filter
Q15 PLL unlock control ON when the PLL is ocked.
Q16 Amplifies the VCO output to the level required for the PLL.
High-frequency amplifier
Q17 High-frequency amplifier Amplifies the VCO output to the level required for input to the 1st IF mixer (Q2)
019 Transmit driver (power amplifier) Amplifies to the level required for input to the final unit power module.
Q20 +B(DB) AVR of Q19 Operates in transmit mode.
13

321A
14
DESCRIPTION OF ELEMENTS
Element Function Description
Q21 High-pass filter Improves AF frequency characteristics in the receive mode.
D1 Limiting Limits the first IF signal.
D2 Reversal current protection Turns on the SQ circuit and 04 for AL, in transmit mode for muting of the AF line
D3 Reversal current protection
Prevents flow of RF meter current to the microphone check circuit and rectifies the
microphone check output.
D4 Discharge For discharging any residual charge on the 8T line.
DS AVR Zener diode for setting the AVR circuit reference voltage.
D6 Switching characteristic Diode to provide rise and fall hysteresis on the LD line.
D7 VCO output switch Reduces the drive circuit load in receive mode.
D8 VCO output switch Reduces the oscillator load in transmit mode.
D9 Temperature compensation Temperature compensation for Q19 (driver).
D10 Temperature compensation Temperature compensation for APC circuit.
D14 Protect for S-meter circuit when TX to RX mode.
S-meter circuit protection
VCO (X58-3090-11)
Element Function Description
Qi Amplifier Operates in all modes to amplify the VCO output to the required level
Q2 Transmit VCO Operates in transmit mode as the PLL VCO (220MHz band).
Q3 Transmit VCO switch Turns on the transmit VCO.
Q4 Receive VCO Operates in receive mode as the PLL VCO.
01 OR circuit ORs 8T and 8R to operate Q1 at normal temperature.
D2 Transmit modulation varactor Adds FM modulation to TX VCO.
D3 Transmit frequency control varactor
D4 Receive frequency control varactor
DRIVE (X59-3120-11)
Element Function Description
Qi Switching Supplies 8V to the drive circuit; switched by Q3.
Q2 Switching Supplies 8V to the local oscillator amplifier; switched by Q3.
Q3 Switching ON when the PLL is locked.
Operates in transmit mode. When checking levels near these transistors, be careful
Q4,05 High-frequency amplifier of the probe ground points.
D1 Reversal current protection Separates Q1 and O2.
APC (X59-3130-00)
Element Function Description
Qi Differential amplifier
Q2(1/2) Protection control Adjustable with VR5.
Q2(2/2) APC control Adjustable with VR6.
Q3 Drive stage +
BAVR
IF (X59-3140-00)
Element Function Description
Second local oscillator, mixer, IF ampli- @S-meter output. Noise amplifier output (first stage).
IC1
fier, quadrature detector, noise amplifier @Detector output @First tF signal input.
321A
14
DESCRIPTION OF ELEMENTS
Element Function Description
Q21 High-pass filter Improves AF frequency characteristics in the receive mode.
D1 Limiting Limits the first IF signal.
D2 Reversal current protection Turns on the SQ circuit and 04 for AL, in transmit mode for muting of the AF line
D3 Reversal current protection
Prevents flow of RF meter current to the microphone check circuit and rectifies the
microphone check output.
D4 Discharge For discharging any residual charge on the 8T line.
DS AVR Zener diode for setting the AVR circuit reference voltage.
D6 Switching characteristic Diode to provide rise and fall hysteresis on the LD line.
D7 VCO output switch Reduces the drive circuit load in receive mode.
D8 VCO output switch Reduces the oscillator load in transmit mode.
D9 Temperature compensation Temperature compensation for Q19 (driver).
D10 Temperature compensation Temperature compensation for APC circuit.
D14 Protect for S-meter circuit when TX to RX mode.
S-meter circuit protection
VCO (X58-3090-11)
Element Function Description
Qi Amplifier Operates in all modes to amplify the VCO output to the required level
Q2 Transmit VCO Operates in transmit mode as the PLL VCO (220MHz band).
Q3 Transmit VCO switch Turns on the transmit VCO.
Q4 Receive VCO Operates in receive mode as the PLL VCO.
01 OR circuit ORs 8T and 8R to operate Q1 at normal temperature.
D2 Transmit modulation varactor Adds FM modulation to TX VCO.
D3 Transmit frequency control varactor
D4 Receive frequency control varactor
DRIVE (X59-3120-11)
Element Function Description
Qi Switching Supplies 8V to the drive circuit; switched by Q3.
Q2 Switching Supplies 8V to the local oscillator amplifier; switched by Q3.
Q3 Switching ON when the PLL is locked.
Operates in transmit mode. When checking levels near these transistors, be careful
Q4,05 High-frequency amplifier of the probe ground points.
D1 Reversal current protection Separates Q1 and O2.
APC (X59-3130-00)
Element Function Description
Qi Differential amplifier
Q2(1/2) Protection control Adjustable with VR5.
Q2(2/2) APC control Adjustable with VR6.
Q3 Drive stage +
BAVR
IF (X59-3140-00)
Element Function Description
Second local oscillator, mixer, IF ampli- @S-meter output. Noise amplifier output (first stage).
IC1
fier, quadrature detector, noise amplifier @Detector output @First tF signal input.

TM-32
DESCRIPTION OF ELEMENTS
SQL (X59-3150-00)
Element Function Description
Qi Noise amplifier
Q2 Squelch switching ON when squeltch is on,
Q3,04 DC amplifier OFF when squelch is on,
Q5 Low-frequency amptitier For RD terminal.
06 Low-frequency amplifier OFF when squelch is on.
D1 Squelch noise rectifier
D2 Base bias setting
MIC (X59-3160-00)
Element Function Description
1C1(1/2) Low-frequency amplifier @Output, @Input.
1C1(2/2) Low-frequency amplifier For microphone check. ©Input @Output.
1C2(1/2) Limiting amplifier @Output @Input.
1C2(2/2) LPF ©,@ Output.
VOL (X59-3170-00)
Element Function Description
®Output,
Electronic volume control @Input.
(16 steps, initialized to the ®Initialize input :''L'' >step 6.
IC1
6th step from the ®Increase (''L'' input raises the volume 1step).
bottom) Decrease (''L'' input lowers the volume 1step)
"H'' while operating.
@controlled by ®
®controlled by ®
Ic2 Bidirectional switch (4 circuits)
controlled by
®controlled by @
Qi Bidirectional switch enable ON to enable electronic volume control.
Q2 Switching ON to decrease by 1step.
Q3 Switching ON to increase by 1step.
D1 Voltage drop
15
TM-32
DESCRIPTION OF ELEMENTS
SQL (X59-3150-00)
Element Function Description
Qi Noise amplifier
Q2 Squelch switching ON when squeltch is on,
Q3,04 DC amplifier OFF when squelch is on,
Q5 Low-frequency amptitier For RD terminal.
06 Low-frequency amplifier OFF when squelch is on.
D1 Squelch noise rectifier
D2 Base bias setting
MIC (X59-3160-00)
Element Function Description
1C1(1/2) Low-frequency amplifier @Output, @Input.
1C1(2/2) Low-frequency amplifier For microphone check. ©Input @Output.
1C2(1/2) Limiting amplifier @Output @Input.
1C2(2/2) LPF ©,@ Output.
VOL (X59-3170-00)
Element Function Description
®Output,
Electronic volume control @Input.
(16 steps, initialized to the ®Initialize input :''L'' >step 6.
IC1
6th step from the ®Increase (''L'' input raises the volume 1step).
bottom) Decrease (''L'' input lowers the volume 1step)
"H'' while operating.
@controlled by ®
®controlled by ®
Ic2 Bidirectional switch (4 circuits)
controlled by
®controlled by @
Qi Bidirectional switch enable ON to enable electronic volume control.
Q2 Switching ON to decrease by 1step.
Q3 Switching ON to increase by 1step.
D1 Voltage drop
15

321A
16
PARTS LIST
CAPACITORS CC 45 TH 1H 220 JCC45 Color* ©Capacitor value 103=0.01uF
56>+01O=1pF 220=22pF
1=Type...... ceramic, electrolytic,etc. 4= Voltage rating 100=10pF %
2=Shape ...... round, square, etc. 5=Value 1st number Multiplier
3=Temp. coefficient 6=Tolerance 101100pF 2nd number
102= 1000pF =0.0014F
Example CC45TH =-470460 ppm/°C
@Temperature Coefficient
1st Word LPRsTU
Color* Black Red Orange Yetlow Green Biue Violet
ppm/°C 0~-80 -150 -220 ~330 470 -750
2nd Word GHJKL
ppm/°C +30 +60 +120 +250 +500
©Tolerance
Code cDGJKMxNo code
(%) £0.25 +0.5 +2 45 +10 +20 +40 +80 +100 More 10F-10~+50
than
Less
-20 -20 -0 than 4.7pF-10~ +75
Code BcFG
t0.1 +0.25 +0.5 z1
(pF) t2
Less than 10 pF
@Rating voltage
2nd
word
BcEFGHJK
Ist
word
1.0 1.25 1.6 2.0 2.5 3.15 40 5.0 6.3 8.0
10 12.5 16 20 25 31,5 40 50 63 80 35
100 125 10 200 250 315 400 500 630 800
10 1250 1600 2000 2500 3150 4000 5000 6300 8000
AD
1
2
3
@Chip capacitors Dimension
cc 73 FLIHOOD
(23 >Refer to the table above.
12 34567
(Chip) (CH,RH,UJSL)
1234 567 Dimension
(Chip) (B.F)
1=Type ...... ceramic, electrolytic, etc.
RESISTORS 2= Shape round, square, etc.
©Chip resistor (Carbon) 3= Dimension
828000 4=Temp. coefficient
5=Voltage rating Rating wattage
a6=Value Di
1234 567
imension
(Chip) (B,F) 7Tolerance.
vs
@Carbon resistor (Normal type) thay
T
ROtT4B B2C000
12345 67
Dimension code LT
Empty 5.6+0.5 5.0 +0.5 Less than 2.0
E3.2+0.2 1610.2 Less than 1.25
F2.01 0.3 1.25 +0.2 Less than 1.25
H000 Z
(EX)
Dimension code LwTWattage
E3.2 +0.2 1.6 +0.2 0.57 2B
F2.010.3 1.25 +0.2 0.45 2A
Cord Wattage Cord Wattage Cord Wattage
2A 1/i0W 2E 1/ 4w 3A 1w
28 1/ BW 2H 1/ 2W 3D
2c 1/ 6W
321A
16
PARTS LIST
CAPACITORS CC 45 TH 1H 220 JCC45 Color* ©Capacitor value 103=0.01uF
56>+01O=1pF 220=22pF
1=Type...... ceramic, electrolytic,etc. 4= Voltage rating 100=10pF %
2=Shape ...... round, square, etc. 5=Value 1st number Multiplier
3=Temp. coefficient 6=Tolerance 101100pF 2nd number
102= 1000pF =0.0014F
Example CC45TH =-470460 ppm/°C
@Temperature Coefficient
1st Word LPRsTU
Color* Black Red Orange Yetlow Green Biue Violet
ppm/°C 0~-80 -150 -220 ~330 470 -750
2nd Word GHJKL
ppm/°C +30 +60 +120 +250 +500
©Tolerance
Code cDGJKMxNo code
(%) £0.25 +0.5 +2 45 +10 +20 +40 +80 +100 More 10F-10~+50
than
Less
-20 -20 -0 than 4.7pF-10~ +75
Code BcFG
t0.1 +0.25 +0.5 z1
(pF) t2
Less than 10 pF
@Rating voltage
2nd
word
BcEFGHJK
Ist
word
1.0 1.25 1.6 2.0 2.5 3.15 40 5.0 6.3 8.0
10 12.5 16 20 25 31,5 40 50 63 80 35
100 125 10 200 250 315 400 500 630 800
10 1250 1600 2000 2500 3150 4000 5000 6300 8000
AD
1
2
3
@Chip capacitors Dimension
cc 73 FLIHOOD
(23 >Refer to the table above.
12 34567
(Chip) (CH,RH,UJSL)
1234 567 Dimension
(Chip) (B.F)
1=Type ...... ceramic, electrolytic, etc.
RESISTORS 2= Shape round, square, etc.
©Chip resistor (Carbon) 3= Dimension
828000 4=Temp. coefficient
5=Voltage rating Rating wattage
a6=Value Di
1234 567
imension
(Chip) (B,F) 7Tolerance.
vs
@Carbon resistor (Normal type) thay
T
ROtT4B B2C000
12345 67
Dimension code LT
Empty 5.6+0.5 5.0 +0.5 Less than 2.0
E3.2+0.2 1610.2 Less than 1.25
F2.01 0.3 1.25 +0.2 Less than 1.25
H000 Z
(EX)
Dimension code LwTWattage
E3.2 +0.2 1.6 +0.2 0.57 2B
F2.010.3 1.25 +0.2 0.45 2A
Cord Wattage Cord Wattage Cord Wattage
2A 1/i0W 2E 1/ 4w 3A 1w
28 1/ BW 2H 1/ 2W 3D
2c 1/ 6W

TM-32
>New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telie onne Parts No. werden nicht gellefert.
Ref. No. Address New Parts No. Description Desti- Re-
Parts nation marks
oR ES Mgoh 4
TM-321A
1B AGiI1021-03 METALLIC CABINET (UPFER)
ADI-1022-03 METALLIC CABINET (BOTTOM)
1A *A20-2629-02 PANEL ASSY
AZO-2574-03 PANEL ASSY
2A B11-0442-04 REFRACTOR
li ZA B38-0303-05 LCD ASSY
14 1B B42-2455-04 LABEL
15 1E B46-0410~-20 WARRANTY CARD
(M4X8 sMAX)
16 iD *BS0-8182-00 INSTRUCTION MANUAL
B10-0699-03 FRONT GLASS
B11-0446-14 REFRACTOR
22 3D E30-2053-05 DC CARD ASSY (ALSY)
E31-3224-05 FLAT CABLE (LOD CANTRAL )
E31~3239-15 LEAD WITH CONNECTOR (SP)
27 3D FOS-8021-05 FUSE (BA) AESY
30 2B 20-0587-04 INSULATING SHEET(LITHUM BATT)
31 F20-0521-04 INSULATING SHEET(LITHUM BATT)
32 ZA F29-0431-05 INSULATOR (VBL» SOL)
FOS~2036-05 FUSE (208A) FOR DC CORD
36 1A G09-0405-05 SPRING (KN®&B)
3? 1B,2B G10-0604-04 FELT (CABINET)
38 1B G10-0651-04 FELT (SP)
40 Gi3~0839--04 CUSH IAN (KNOB)
42 1B G13-0845-04 CUSHION (SP)
43 G10-0659-04 FELT (SUB PANEL)
44 1A;1B G53-0508-04 FELT (PANEL FRAME)
G13-0838-04 CUSH IIN
G13-0853~-04 CUSHION (LOD)
G53-0537-04 PACKING (SP)
48 3E HOi-8125~-04 ITEM CARTON BAX
49 3D H10~2627-02 POLYSTYRENE FRAMED FIXTURE
a1 iD H13-0812-04 POLYSTYRENE F@AMED FIXTURE (TSP
H13-0814-04 BUFFER (MBUNT BRACKET)
53 3D H25-0049-03 PROTECTION BAG (DC CARD)
54 H25-0720-04 PROTECTION BAG (RADI®)
55 3D HeS~-0029-04 PROTECTION BAG (MIC HOOK .SCREW
oe 3D J20-0319-24 MIC H&K CACSY)
3? 2D J29-0416-03 MOUNTING BRACKET (ACSY)
60 J31-0141-04 SPACER RING (MIC)
61 1B J19~-1422-14 H&LDER
J21-4147-14 M6UNTING HARDWARE (ACSY)}
J61-0307-05 WIRE BAND
64 iA K2?-0496-04 KNOB (BUTTON) PRQWER »LOW
66 K29-3058-04 KNOB (MHZ +VFO/M» MIN)
67 1A K29~3060-04 KNOB (MAIN)
68 1A K29-3061-04 KNOB
69 1A K29-~3069-04 KNOB (BUTTON) SHIFT
70 1A K29~-3065~-04 KNSB(BUTTEN) REV
71 iA K29~3067-04 KNOB CBUTTON} SCAN
v2 if K29~-3068-04 KN®B (BUTTON) CTCSS
73 iA K29-3070-04 KNOB( BUTTON) TSNE
1
2B
2
4
9
2A
2A
2A
52 2D
2D
2A
62 2D
2A
E: Scandinavia &Europe K: USA P: Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
17
UE: AAFES(Europe) X: Australia indicates safety critical components.
TM-32
>New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telie onne Parts No. werden nicht gellefert.
Ref. No. Address New Parts No. Description Desti- Re-
Parts nation marks
oR ES Mgoh 4
TM-321A
1B AGiI1021-03 METALLIC CABINET (UPFER)
ADI-1022-03 METALLIC CABINET (BOTTOM)
1A *A20-2629-02 PANEL ASSY
AZO-2574-03 PANEL ASSY
2A B11-0442-04 REFRACTOR
li ZA B38-0303-05 LCD ASSY
14 1B B42-2455-04 LABEL
15 1E B46-0410~-20 WARRANTY CARD
(M4X8 sMAX)
16 iD *BS0-8182-00 INSTRUCTION MANUAL
B10-0699-03 FRONT GLASS
B11-0446-14 REFRACTOR
22 3D E30-2053-05 DC CARD ASSY (ALSY)
E31-3224-05 FLAT CABLE (LOD CANTRAL )
E31~3239-15 LEAD WITH CONNECTOR (SP)
27 3D FOS-8021-05 FUSE (BA) AESY
30 2B 20-0587-04 INSULATING SHEET(LITHUM BATT)
31 F20-0521-04 INSULATING SHEET(LITHUM BATT)
32 ZA F29-0431-05 INSULATOR (VBL» SOL)
FOS~2036-05 FUSE (208A) FOR DC CORD
36 1A G09-0405-05 SPRING (KN®&B)
3? 1B,2B G10-0604-04 FELT (CABINET)
38 1B G10-0651-04 FELT (SP)
40 Gi3~0839--04 CUSH IAN (KNOB)
42 1B G13-0845-04 CUSHION (SP)
43 G10-0659-04 FELT (SUB PANEL)
44 1A;1B G53-0508-04 FELT (PANEL FRAME)
G13-0838-04 CUSH IIN
G13-0853~-04 CUSHION (LOD)
G53-0537-04 PACKING (SP)
48 3E HOi-8125~-04 ITEM CARTON BAX
49 3D H10~2627-02 POLYSTYRENE FRAMED FIXTURE
a1 iD H13-0812-04 POLYSTYRENE F@AMED FIXTURE (TSP
H13-0814-04 BUFFER (MBUNT BRACKET)
53 3D H25-0049-03 PROTECTION BAG (DC CARD)
54 H25-0720-04 PROTECTION BAG (RADI®)
55 3D HeS~-0029-04 PROTECTION BAG (MIC HOOK .SCREW
oe 3D J20-0319-24 MIC H&K CACSY)
3? 2D J29-0416-03 MOUNTING BRACKET (ACSY)
60 J31-0141-04 SPACER RING (MIC)
61 1B J19~-1422-14 H&LDER
J21-4147-14 M6UNTING HARDWARE (ACSY)}
J61-0307-05 WIRE BAND
64 iA K2?-0496-04 KNOB (BUTTON) PRQWER »LOW
66 K29-3058-04 KNOB (MHZ +VFO/M» MIN)
67 1A K29~3060-04 KNOB (MAIN)
68 1A K29-3061-04 KNOB
69 1A K29-~3069-04 KNOB (BUTTON) SHIFT
70 1A K29~-3065~-04 KNSB(BUTTEN) REV
71 iA K29~3067-04 KNOB CBUTTON} SCAN
v2 if K29~-3068-04 KN®B (BUTTON) CTCSS
73 iA K29-3070-04 KNOB( BUTTON) TSNE
1
2B
2
4
9
2A
2A
2A
52 2D
2D
2A
62 2D
2A
E: Scandinavia &Europe K: USA P: Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
17
UE: AAFES(Europe) X: Australia indicates safety critical components.

-321A
18
»New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articies non mentionnes dans le Parts No. ne sont pas fournis.
Telle ohne Parts No. werden nicht geliefert.
Ref. No. Address |New Parts No. Description Desti- Re-
Parts nation marks
MES fi Bh ESA ER b
K29-3057-14 KNOB RING
7? 3D N99-0318-05 SCREW SET
78 3D N46~3010-46 PAN HEAD TAPPING SCREWCACSY)
1B.1f N32-2604-46 FLAT HEAD MACHINE SCREW
NB7~2606~46 TAPTITE SCREW (CONTROL UNIT)
C2A»2B N89-2606-46 TAPTITE SCREW (SUB PANEL)
1B; 2B N33~2606-45 VAL HEAD MACHINE SCREW(CABINT
G1B2B N09-2020-05 STIGHT SCREW (CABINET L>R)
LOUDSPEAKER (FULLRANGE)
1B TO?-0246-05
86 T91-0359-05 MICROPHONE
LCRSBE IC(LCD DRIVER)
94 2A W009-0326--05 LITHLJM BATTERY
99 iB»1C X45-1360-11 FINAL UNIT
100 X53~-3040-13 CONTROL PC UNIT
101 XS¢-31 70-10 TX-RX UNIT
FINAL UNIT {X45-1360-11)
CE04EW 1II 1OOM ELECTRA LOUF 16WV
C3 Cl4SSLZH100D CERAMIC IDFIF
C4 CERAMIC 4. OFF
Cs Ce45B2AH 102K CERAMIC 1000PF
C6 Cl45SL2eH150 CERAMIC 15PF
CERAMIC 18PF
Cl45SL2H180S
CB CC4S5CHiHOLOC CERAMIC 1. OFF C
co Cr4SSL2Hisos CERAMIC 18PF
Cil CM?3FeEHOSOC CHIP C5. OPF
112 17 CK45B1H102K CERAMIC 1000PF
110 if E30~2021-35 DC CABLE (HEAT SINK)
1c E30-2074-05 ANT C@AX. CABLE 111
Eii-0401-05 EAR PHSNE JACK
E31~-2066-05 TRAX. CABLE (Da)
E31-2090-05 CAAX. CABLE (RA)
TP1 £23-0512-05 TERMINAL
Ic F01~-0950-05 HEAT SINK
us
FOS-8021-05 FUSE (8A)
120 1BJ19-1375-04 CRAX. FITTING HARDWARE
J41-0033-05 BUSHING (DC CABLE)
121 ic
122 iv J42-0448-05 BUSHING (ANT CABLE)
Li L34-0908-05 CNIL (359. ST}
L34-1207-05 COIL (353. 57)
L3 *34-1208-05 COIL (35373
L4 L34-0908-05 COIL (39. 5ST)
LS L34-0641-05 ENIL (3537)
Lé L34-1209-05 COIL (3,27)
L? L40--1091--03 SMALL FIXED INDUCTOR (1UH)
1B N09-0626-04 SEMUS SCREW (M3X10}
F1B NOB? 2606-41 BRAZIER HEAD TAPTITE SCREW
Ri RDL4DBEHIS1d SMALL-RD 150 Ji/2W
Re RD14BB2C153J RD 1EK J1/6W
VR 1Ri2-0541-05 TRIMMING POT. 100)
20
85
2D
1
7
L2
E: Scandinavia &Europe K:USA P: Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
VE :AAFES(Europe) X: Australia A\ indicates safety critical components.
-321A
18
»New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articies non mentionnes dans le Parts No. ne sont pas fournis.
Telle ohne Parts No. werden nicht geliefert.
Ref. No. Address |New Parts No. Description Desti- Re-
Parts nation marks
MES fi Bh ESA ER b
K29-3057-14 KNOB RING
7? 3D N99-0318-05 SCREW SET
78 3D N46~3010-46 PAN HEAD TAPPING SCREWCACSY)
1B.1f N32-2604-46 FLAT HEAD MACHINE SCREW
NB7~2606~46 TAPTITE SCREW (CONTROL UNIT)
C2A»2B N89-2606-46 TAPTITE SCREW (SUB PANEL)
1B; 2B N33~2606-45 VAL HEAD MACHINE SCREW(CABINT
G1B2B N09-2020-05 STIGHT SCREW (CABINET L>R)
LOUDSPEAKER (FULLRANGE)
1B TO?-0246-05
86 T91-0359-05 MICROPHONE
LCRSBE IC(LCD DRIVER)
94 2A W009-0326--05 LITHLJM BATTERY
99 iB»1C X45-1360-11 FINAL UNIT
100 X53~-3040-13 CONTROL PC UNIT
101 XS¢-31 70-10 TX-RX UNIT
FINAL UNIT {X45-1360-11)
CE04EW 1II 1OOM ELECTRA LOUF 16WV
C3 Cl4SSLZH100D CERAMIC IDFIF
C4 CERAMIC 4. OFF
Cs Ce45B2AH 102K CERAMIC 1000PF
C6 Cl45SL2eH150 CERAMIC 15PF
CERAMIC 18PF
Cl45SL2H180S
CB CC4S5CHiHOLOC CERAMIC 1. OFF C
co Cr4SSL2Hisos CERAMIC 18PF
Cil CM?3FeEHOSOC CHIP C5. OPF
112 17 CK45B1H102K CERAMIC 1000PF
110 if E30~2021-35 DC CABLE (HEAT SINK)
1c E30-2074-05 ANT C@AX. CABLE 111
Eii-0401-05 EAR PHSNE JACK
E31~-2066-05 TRAX. CABLE (Da)
E31-2090-05 CAAX. CABLE (RA)
TP1 £23-0512-05 TERMINAL
Ic F01~-0950-05 HEAT SINK
us
FOS-8021-05 FUSE (8A)
120 1BJ19-1375-04 CRAX. FITTING HARDWARE
J41-0033-05 BUSHING (DC CABLE)
121 ic
122 iv J42-0448-05 BUSHING (ANT CABLE)
Li L34-0908-05 CNIL (359. ST}
L34-1207-05 COIL (353. 57)
L3 *34-1208-05 COIL (35373
L4 L34-0908-05 COIL (39. 5ST)
LS L34-0641-05 ENIL (3537)
Lé L34-1209-05 COIL (3,27)
L? L40--1091--03 SMALL FIXED INDUCTOR (1UH)
1B N09-0626-04 SEMUS SCREW (M3X10}
F1B NOB? 2606-41 BRAZIER HEAD TAPTITE SCREW
Ri RDL4DBEHIS1d SMALL-RD 150 Ji/2W
Re RD14BB2C153J RD 1EK J1/6W
VR 1Ri2-0541-05 TRIMMING POT. 100)
20
85
2D
1
7
L2
E: Scandinavia &Europe K:USA P: Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
VE :AAFES(Europe) X: Australia A\ indicates safety critical components.

TM-321A
>New Parts PA RTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. née sont pas fournis.
Telle ohne Parts No. werden nicht gellefert.
Ref. No. Address |New Parts No. Description Desti- Re-
nation marks
519 ®h eye &
Di DSA3AI DIODE
De MI40? DIQDE
D3 MI308 DINDE
D4 191587 DISDE
al Maree4 PAWER M6DULE
CONTROL UNIT (X53-3040-13)
ne 2IIKIVBFB1H103K CHIP C0. 010UF K
C3 »4 CC73FCH1H330J CHIP 33PF J
Cs ~14 CK73FB1HIUEK CHIP C1U00PF K
CS EED4EN1E1DDM ELECTRA 10UF 16WV
C16 CK?SFBIHI03K CHIP C0.010UF k
ci? CK73EF1C1057 CHIP E1. OUF Zz
E06-0858--05 8P METAL SOCKET
E31-3231--05 CONNECTING WIRE
E31-3238-05 CONNECTING WIRE (CTI )
E40-1878-05 PIN CONNECTOR (18F)
Li L??-1313-05 CRYSTAL RESONATOR (4. 194304MHZ)
R1 RD41FB2B563J CYLND CHIP SéK 1/8W
R2 RD4 1FB2B1 DSJ DYLND CHIP C1. OM 1/8W
R6 RD41FB2B104J (YLND CHIP C10OK 1/8W
R? RD41FB2B105J DYLND CHIP c1. OM 1/8W
R8 9RD41FB2B104J CYLND CHIP 100k 1/8W
R10 -13 RD41FB2B473J CYLND CHIP c47k 1/8W
R14 RD4ALFR2BeAR2 EYLND CHIP c2.2 1/8W
R1iS RD41FB2B103J CYLND CHIP 11OK 1/8W
R16 RD41F B2B4 730 CYLND CHIP C47k 1/8W
RL? 18 RD41B2B474d CYLND CHIP 470K 1/8W
Ri? RD41FB2B472J CYLND CHIP c4. 7K. 1/8W
Rei sen CHIP R0OHM
R25 RI2-0687-05 CHIP RCI NHM
R26 RD4 1FB2B 1OEJ CYLND CHIP C1. OK 1/8W
R2? RI2-0150-05 JUMPER REST 08HM
VR1 ROS~3441-05 PATENT ISMETER (10KA)
VR2 ROS-4420-05 POTENT ISMETER (SOKB)
Sl -8 540-1066-05 PUSH SWITCH
10° $40-2450-05 PUSH SWITCH
Di ~4 195184 CHIP DIRDE
LAS006M IC(LOW SATURATION REGULATOR)
Ite M51951BML IC(SYSTEM RESET)
Ic3 75106G-Se2-18 IC (MICROPRACESSAR)
Ic4 KRR-C001 It
M1 DTC L24Ek DIGITAL TRANSISTOR
a2 CHIP TRANSISTOR
W02-0388-05 ROTARY ENCODER
TX-RX UNIT (X57-3170-10)
C1 ?3FSLAHS9OT CHIP 39PF
COPSFCHLHA2OT CHIP 12PF
CER3FEH LHI RSE CHIP 1. SPF
D3
C4 CER3FTHIHI20d CH IP12FF J
CS CC73FSL1H390J CHIP 39PF
C6 CK73FB1H102K CHIP C1000PF
Parts
R92-0687-05
Il 1
E: Scandinavia &Europe K:USA P: Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
UE :AAFES(Europe) X: Australia A\ indicates safety critical components. 19
TM-321A
>New Parts PA RTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. née sont pas fournis.
Telle ohne Parts No. werden nicht gellefert.
Ref. No. Address |New Parts No. Description Desti- Re-
nation marks
519 ®h eye &
Di DSA3AI DIODE
De MI40? DIQDE
D3 MI308 DINDE
D4 191587 DISDE
al Maree4 PAWER M6DULE
CONTROL UNIT (X53-3040-13)
ne 2IIKIVBFB1H103K CHIP C0. 010UF K
C3 »4 CC73FCH1H330J CHIP 33PF J
Cs ~14 CK73FB1HIUEK CHIP C1U00PF K
CS EED4EN1E1DDM ELECTRA 10UF 16WV
C16 CK?SFBIHI03K CHIP C0.010UF k
ci? CK73EF1C1057 CHIP E1. OUF Zz
E06-0858--05 8P METAL SOCKET
E31-3231--05 CONNECTING WIRE
E31-3238-05 CONNECTING WIRE (CTI )
E40-1878-05 PIN CONNECTOR (18F)
Li L??-1313-05 CRYSTAL RESONATOR (4. 194304MHZ)
R1 RD41FB2B563J CYLND CHIP SéK 1/8W
R2 RD4 1FB2B1 DSJ DYLND CHIP C1. OM 1/8W
R6 RD41FB2B104J (YLND CHIP C10OK 1/8W
R? RD41FB2B105J DYLND CHIP c1. OM 1/8W
R8 9RD41FB2B104J CYLND CHIP 100k 1/8W
R10 -13 RD41FB2B473J CYLND CHIP c47k 1/8W
R14 RD4ALFR2BeAR2 EYLND CHIP c2.2 1/8W
R1iS RD41FB2B103J CYLND CHIP 11OK 1/8W
R16 RD41F B2B4 730 CYLND CHIP C47k 1/8W
RL? 18 RD41B2B474d CYLND CHIP 470K 1/8W
Ri? RD41FB2B472J CYLND CHIP c4. 7K. 1/8W
Rei sen CHIP R0OHM
R25 RI2-0687-05 CHIP RCI NHM
R26 RD4 1FB2B 1OEJ CYLND CHIP C1. OK 1/8W
R2? RI2-0150-05 JUMPER REST 08HM
VR1 ROS~3441-05 PATENT ISMETER (10KA)
VR2 ROS-4420-05 POTENT ISMETER (SOKB)
Sl -8 540-1066-05 PUSH SWITCH
10° $40-2450-05 PUSH SWITCH
Di ~4 195184 CHIP DIRDE
LAS006M IC(LOW SATURATION REGULATOR)
Ite M51951BML IC(SYSTEM RESET)
Ic3 75106G-Se2-18 IC (MICROPRACESSAR)
Ic4 KRR-C001 It
M1 DTC L24Ek DIGITAL TRANSISTOR
a2 CHIP TRANSISTOR
W02-0388-05 ROTARY ENCODER
TX-RX UNIT (X57-3170-10)
C1 ?3FSLAHS9OT CHIP 39PF
COPSFCHLHA2OT CHIP 12PF
CER3FEH LHI RSE CHIP 1. SPF
D3
C4 CER3FTHIHI20d CH IP12FF J
CS CC73FSL1H390J CHIP 39PF
C6 CK73FB1H102K CHIP C1000PF
Parts
R92-0687-05
Il 1
E: Scandinavia &Europe K:USA P: Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
UE :AAFES(Europe) X: Australia A\ indicates safety critical components. 19

-321A
20
>New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telle ohne Parts No. werden nicht geliefert.
E: Scandinavia &Europe K: USA P:Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
UE :AAFES(Europe) X: Australia A\ indicates safety critical components.
-321A
20
>New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telle ohne Parts No. werden nicht geliefert.
E: Scandinavia &Europe K: USA P:Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
UE :AAFES(Europe) X: Australia A\ indicates safety critical components.

TM-321A
*New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telle ohne Parts No. werden nicht geliefert.
Ref. No. Address |New 'Parts No. Description Desti- Re-
nation marks
omes fi Bh BSR %+
C78 COPSFCHIHI20J CHIP C12PF
Cr? CKT3FBIH103K CHIP C0. 010UF
C8O CK41FB1H47 1K CYLND CHIP D470PF
CBI CerSFBIH1iOZk CHIP 10D0PF
C83 CK73EF10105Z CHIP C1. OUF
184 CK73FBIHIOBK85 CHIP C0. 010UF kK
C86 CKT3EFIC105 CHIP D1. OUF
Ce? CK73EB1H333K CHIP C0. 033UF
CBB ~90 CED4EH1947DM ELECTRA 4?tU 1OWV
CE04EW1A471M ELECTRA 470UF 10WV
C92 CK73EB 1E104K CHIP C0. 1OUF
193 (90--2033-05 ELECTRS 1D00UF 16WV
C94 CER3FSL 1HI0IJ CHIP D1OOFF
C95 CKTSFBLHIOeK CHIP C1U00PF
C96 ELECTRO 4. (UF ZSWV
C9? CEQ4EWiC100M ELECTRE 1OUF 1OWY
C9B CK73FB1H102K CHIP D1000PF
C100 CK73FEI 1H1OEK CHIP C1000PF
C101 CE04EW1C10OM ELECTRA 1OUF 16WY
CI02 CK7SFBLIHIOeK CHIP C1U00PF
C103 CE04EW1C 101M ELECTRO IOQUF
C104 CK?3FB1H103K CHIP C0. 010UF
C105-109 CK7SFRIHIOeK. CHIP cIDDUF3F
C110.111 Ch? 3FB1H562K CHIP C5600PF
Cii2 CK73EB1E104K CHIP C0. 1OUF
C113 CKTBFBIHIU3K CHIP 0. Q10UF
C119 CK73FB1H223K CHIP 0. 022UF
C120 CK73FB1H103K CHIP 0. 010UF
Ci2l CKPSFBLHIB2k CHIP 1800PF
Ci2es123 CK73FB1H102K CHIP C1000PF
Ci2d £90~2033-05 ELECTRA 1000UF 16WV
C125 CEPJFSL 1HIU1J CHIP C100PF
C1i2e CC73FCH1H020C CHIP c2. OPF c
C127 CC41FCH1H150J CYLND CHIP ISPF
C05-0308-05 TRIMMING CAP (4PF)
Tl2 3COS--0350-05 TRIMMING CAP (20PF)
E04-0154-05 RF COAXIAL CONNECTOR
a1 £40-5016-05 PIN CRNNECTOR (2P)
J2 E40-3237-05 PIN CONNECTOR (2P)
J3 E40~-3238-05 PIN CONNECTOR (3P)
J4 E40-3237-05 PIN CONNECTOR (2P)
E40-3238-05 PIN CONNECTOR (3P)
E40-3237-05 PIN CONNECTOR (2P}
J? »8 E40--5099-05 PIN CONNECTOR
TPA E40-0211-05 PIN CONNECTOR (2P)
TP2 3E23~-0465-05 TERMINAL
Wi E31-3237-05 CONNECTING WIRE
F20-0581~-04 INSULATING SHEET
G02-0535-04 SPRING
G13-0887-04 CUSHTI®N
Li sa L34-4050-05 CAT.
L3 L?9--0683-05 HELICAL RES®NATBR
Parts
yee
91
16WV
JS
E: Scandinavia &Europe K: USA P:Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
UE:AAFES(Europe) )X: Australia indicates safety critical components. 21
TM-321A
*New Parts PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telle ohne Parts No. werden nicht geliefert.
Ref. No. Address |New 'Parts No. Description Desti- Re-
nation marks
omes fi Bh BSR %+
C78 COPSFCHIHI20J CHIP C12PF
Cr? CKT3FBIH103K CHIP C0. 010UF
C8O CK41FB1H47 1K CYLND CHIP D470PF
CBI CerSFBIH1iOZk CHIP 10D0PF
C83 CK73EF10105Z CHIP C1. OUF
184 CK73FBIHIOBK85 CHIP C0. 010UF kK
C86 CKT3EFIC105 CHIP D1. OUF
Ce? CK73EB1H333K CHIP C0. 033UF
CBB ~90 CED4EH1947DM ELECTRA 4?tU 1OWV
CE04EW1A471M ELECTRA 470UF 10WV
C92 CK73EB 1E104K CHIP C0. 1OUF
193 (90--2033-05 ELECTRS 1D00UF 16WV
C94 CER3FSL 1HI0IJ CHIP D1OOFF
C95 CKTSFBLHIOeK CHIP C1U00PF
C96 ELECTRO 4. (UF ZSWV
C9? CEQ4EWiC100M ELECTRE 1OUF 1OWY
C9B CK73FB1H102K CHIP D1000PF
C100 CK73FEI 1H1OEK CHIP C1000PF
C101 CE04EW1C10OM ELECTRA 1OUF 16WY
CI02 CK7SFBLIHIOeK CHIP C1U00PF
C103 CE04EW1C 101M ELECTRO IOQUF
C104 CK?3FB1H103K CHIP C0. 010UF
C105-109 CK7SFRIHIOeK. CHIP cIDDUF3F
C110.111 Ch? 3FB1H562K CHIP C5600PF
Cii2 CK73EB1E104K CHIP C0. 1OUF
C113 CKTBFBIHIU3K CHIP 0. Q10UF
C119 CK73FB1H223K CHIP 0. 022UF
C120 CK73FB1H103K CHIP 0. 010UF
Ci2l CKPSFBLHIB2k CHIP 1800PF
Ci2es123 CK73FB1H102K CHIP C1000PF
Ci2d £90~2033-05 ELECTRA 1000UF 16WV
C125 CEPJFSL 1HIU1J CHIP C100PF
C1i2e CC73FCH1H020C CHIP c2. OPF c
C127 CC41FCH1H150J CYLND CHIP ISPF
C05-0308-05 TRIMMING CAP (4PF)
Tl2 3COS--0350-05 TRIMMING CAP (20PF)
E04-0154-05 RF COAXIAL CONNECTOR
a1 £40-5016-05 PIN CRNNECTOR (2P)
J2 E40-3237-05 PIN CONNECTOR (2P)
J3 E40~-3238-05 PIN CONNECTOR (3P)
J4 E40-3237-05 PIN CONNECTOR (2P)
E40-3238-05 PIN CONNECTOR (3P)
E40-3237-05 PIN CONNECTOR (2P}
J? »8 E40--5099-05 PIN CONNECTOR
TPA E40-0211-05 PIN CONNECTOR (2P)
TP2 3E23~-0465-05 TERMINAL
Wi E31-3237-05 CONNECTING WIRE
F20-0581~-04 INSULATING SHEET
G02-0535-04 SPRING
G13-0887-04 CUSHTI®N
Li sa L34-4050-05 CAT.
L3 L?9--0683-05 HELICAL RES®NATBR
Parts
yee
91
16WV
JS
E: Scandinavia &Europe K: USA P:Canada W:Europe
U: PX(Far East, Hawaii) T:England M: Other Areas
UE:AAFES(Europe) )X: Australia indicates safety critical components. 21