Page 1

430MHz/440MHz FM TRANSCEIVER
TM-441A/E
SERVICE MANUAL
Knob (VFO,MR,MHz) Metallic cabinet (UPSIDE)
(K27-3035-14) (A01-1065-03)
Microphone'
(T91-)
Panelass'v"
(A62-0012-23): TM-441 A
(A62-0013-23): TM-441 E
KENWOOD
©1990-9 PRINTED IN JAPAN
851-8061-00(8)955
Knob (POWER)
(K27-3066-04)
Knob (MAIN)
(K29-3156-04)
Knob (CALL)
(K27-3068-04)
Knob (F)
(K27-3069-04)
Knob (SHIFT)
(K27-30 74-04)
Knob (REV)
(K27-3072-04)
Knob (TONE)
(K27-3071-04)
Knob (VOL,SQL)
(K29-315 7-04)
Knob (OR/OT) 8 PinMetal socket (MIC)
(K27-3075-04) (E06-0860-05)
-------CONTENTS-------
CIRCUIT DESCRiPTION
DESCRIPTION OF COMPONENTS
PARTS LIST 12
EXPLODED VIEW 23
PACKING 24
ADJUSTMENT 25
PC BOARD VIEWS/CIRCUIT DIAGRAM
LCD ASS'Y (838-0330-05)
PLL (X58-3480-00)
APC (X59-3130-00)
MIC AMP (X59-361 0-00)
TX-RX UNIT (X57-370x-XX)
29
30
32
32
33
2
9
SCHEMATIC DIAGRAM 35
TERMINAL FUNCTIONS 39
BLOCK DIAGRAM 40
LEVEL DIAGRAM 42
DRU-1 (DIGITAL RECORDING UNIT) 43
DTU-2 51
MC-44 (MULTI FUNCTION MICROPHONE) .. 53
MC-44DM/MC-44DME (MULTI FUNCTION
MICROPHONE WITH AUTOPATCH) 54
MC-44E (MULTI FUNCTION MICROPHONE) 55
TSU-6 (CTCS$ UNIT) 56
SPECIFICATIONS _ , BACK COVER
Photo is TM-441 A.
*
Refer to parts list on page 12.
,
;
Page 2

TM-441A/E
CIRCUIT DESCRIPTION
Circuit Configuration By Frequency
TheTM-441 AlE incorporates a PLLsynthesizer which
uses a digital VFO to allow any channel step of 5, 10,
12.5, 15, 20, or 25kHz to be selected (See Figure 1).
The receiving system utilizes double-conversion
techniques. That is, an incoming signal is mixed
down to the 1st intermediate frequency (IF) of
30.825 MHz, using a 1st local oscillator frequency of
from 399.175 to 409.170 MHz (E,M). 407.175 to
419.170 MHz (K,P). The 1st IF signal is then mixed
with the 2nd local oscillator frequency of 30.370
MHz to generate the 2nd IF fo 455 kHz.
The transmitting system consists of a PLL circuit
which allows direct modulation and direct frequency
division. Signals from the PLL circuit are amplified by a
linear amplifier for transmission.
438 - 449.995 MHz (K,?)
430 - 439.995 MHz (E,M) CFWM455F
339.175 -
409.170 MHz (E,M)
407.175 -
419.179 MHz (K,?)
. T
30.370MHz
The 1st IFsignal is amplified and fed into IC1 (KCD04)
inthe FM IF HIC.The IFsignal isthen mixed with the 2nd
local oscillator frequency of 10.24MHz to generate the
2nd IF of 455kHz. The 455kHz signal is then passed
through a six element ceramic filter (CFWM455F), and
fed back into IC1 for additional amplification. The output
signal from the IC1 is then fed into a power amplifier via
the audio volume control for application to the speaker.
• S-meter circuit
S-meter control voltage from IC1 (KCD04) in the
FM IF HIC is fed into the control unit. The CPU con-
verts the voltage from an analog to a digial signal in
order to operate the LCD bar meter.
Item
Nominal center frequency
Pass band width
Attenuation band width
Ripple
Insertion loss
Guaranteed attenuation
Terminating impedance
30.825MHz
± 7 .5kHz or less at 3dB
+28kHz or less at 40dB
1.5dB or less
3dB or less
60dB or more within ±1 MHz
(Spurious :40dB or more)
1.4~n.t1
Rating
pF
Fig. 1 Frequency configuration
Receiving System
• Overview
Incoming signals from the antenna pass through a
low-pass filter in the final block of the transmitter sys-
tem, and are switched to the front-end of the receiver
system via a receive/transmit switching diode.
The signals are then passed through an antenna
matching coil, where the high-frequency components
are amplified by a GaAs FET. The signals are then fed
into a two-pole helical resonator. The resonator is fol-
lowed by another GaAs FET and two-pole helical reso-
nator to remove unnecessary signal components. The
resulting signal from the second resonator isfed into the
1st mixer. The 1st mixer uses the same GaAs FETthat
are used inthe RFstage to obtain better two-signal char-
acteristics. The 1st mixer mixes the signal with the 1st
local oscillator frequency and converts it to the 1st IF
(30.825MHz). The signal then passes through two
monolithic crystal filters (MCFs) to remove unnecessary
near-by frequency components. The signal from the
MCFs is used as the 1st IF signal.
2
-------1 1
MIC AM? ~
MIC
Table 1 MCF (L71-0270-05) (TX-RX unit XF1)
Item
Nominal center frequency
6dB bandwidth
50dB bandwidth
Ripple
(within ±4kHz of 455kHz)
Insertion loss
Guaranteed attenuation
(within ± 100kHz of 455kHz)
I/O matching impedance
455kHz + 1kHz
±6kHz or more (from 455kHz)
+12,5kHz or less (from 455kHz)
3dB or less
6dB or less
35dB or more
2.0kQ
Rating
Table 2 Ceramic filter CFWM455F (L72-0372-05)
(TX-RX unit CF1)
Page 3

CIRCUIT DESCRIPTION
TM-441A/E
Transmitting System
• Overview
The transmitter produces the target frequency thru
the use of direct FM-modulation via a varactor diode.
,I
r
r
r-
• Modulation circuit
Audio signals from the microphone are fed into the
mic amplifier unit for amplification by the first transistor
amplifier, and then into two operational amplifiers. The
operational amplifiers form a splatter filter for pre-
emphasis, amplification, limiting, and removal of unnec-
essary high-frequency components.
The FM modulation circuit directly FM-modulates the
VCO signals, using a varactor diode.
• Pre-amplifier stage circuit
Signals from the VCO are applied tothe drive HIC IC6
(KCB06). The amplifier always operates in a linear mode
so that signals can be amplified without degradation.
Additionally, the amplifier is designed to cover a wide
range of frequencies and can produce stable output
without adjustment. The APC (Automatic Power Con-
trol) controls collector voltaqe from the last stage of the
pre-amplifier.
• Power amplifier circuit
The drive signal is amplified to the required level
by the power module. The TM-441 AlE uses a large
heat sink for efficient heat dissipation.
• APC circuit
The APC circuit for automatic transmit output control
detects part of the power module output, and amplifies
it to provide a control voltage for output control. The
output control voltage is in inverse proportion to the
output from the power module, so it is maintained at the
same level.
---~---l
r
l.
~
I
f,·
,
PLL
APC (X59-3130-001
en
~I
'"
!;
!ill)
017
R82
C70
07
VR4
POWER
~
Fig. 2
Operating voltage Vcc
Current consumption Icc 14
Input power Pin ZG - ZL - 500
Output power Pout
Operating case temperature
Storage temperature
Pre-amplifier stage, power amplifier, and APC circuits
Item
Table 3 Power module M57788M maximum ratings (lC301)
Symbol
Tc(op)
Tstg -40-+110
Condition Rating Unit
ZG = ZL -'500
17
0.6 (VCC1< 13.8V)
55 W
30 - +110 °C
L17
-
V
A
W
°C
3
Page 4

TM-441A/E
C IR C U IT DES C R IP TIO N
PLL Synthesizer Unit
Figure 3 is the PLL and veo block diagram. In the
TM-441
sub-unit which is divided into the upper veo and
lower PLL blocks. The sub-unit is shielded to prevent
external interference.
kHz, available to allow 5, 10, 12.5, 15, or 25 kHz-step
operation. The 6.25kHz is obtained by dividing the refer-
ence oscillator frequency of 12.8MHz by 2048, and the
5kHz is obtained by dividing it by 2560. The veo directly
generates the dial frequency. This dial frequency is
amplified once and then fed into a pulse swallow-type
PLL le for frequency division and phase comparison, in
order to lock the frequency.
tween transmit mode and receive mode. By using a
signal ("H" in transmit mode) from pin 10 of the PLL
le (M54959FP). the LPF is deactivated-activated by
Q4 only for the moment when the TM-441
enters transmit mode. This helps produce lock more
rapidly than previous methods.
AlE,
the PLL system is implemented as a
There are two reference frequencies, 6.25kHz and 5
The PLL system is locked without switching be-
AlE
In 430MHz mode, tvco (RX) is calculated by the
following formula:
fvco=(430 - 30.825)={(n x 128) + A} x fosc / R
where,
fvco : veo output frequency
n : Binary value of the 10-bit programmable
counter
A : Binary value of the 7-bit programmable
counter
fosc : 12,8MHz reference frequency
R : Binary value of the 14-bit programmable
counter
2560 (5, 10, 15, 20, or 25kHz step mode)
2048 (12.5kHz step mode)
In 5, 10, 15, 20, or 25kHz step mode,
n=623 and A=91.
Therefore, fvco is calculated as follows:
fvco={(623 x 128) + 91} x 12800/2560
=
{79744 + 91} x 5
=
399175=399.175MHz
T
X2
12.SMHz
r-------------------,
II
~L-- - -L;';-
I I I I
I
1
I
I
I I
I I I I
I
I
I
I
I
I
L
L
PLL VCO
as2S~MP
2714
(Y)
--l I
;'-C~T-- - - ~~ ---,
I I I
I
I
I
I
I
I
I
I
J
L
RX
339.175-
409.170 MHz(E,M)
407.175 -419.170 MHz (K,P)
Fig. 3 PLL block diagram
0101
vco
T/R
sw
I
I
I
MIC
AMP
1
I
1
I
1 1
I
I
J
J
TX
430.000 -
439.995 MHz(E,M)
438.000 -449.995 MHz(K,P)
4
Page 5

CIRCUIT DESCRIPTION
TM-441A/E
• 8T (8V in transmit mode) and unlock circuits
In receive mode, the base of 012 has 0.7V. As a
result, 012 is on, and 010 and 08 are off, and the
collector of 08 (8T) provides no voltage.
The CPU outputs serial data to the shift register IC3
when the PTT switch is depressed. As a result, pin 8 of
IC3 becomes "L", turning 012 off, and 010 and 08 on.
The 8T line is therefore supplied with 8V.
The unlock circuit operates only in transmit mode.
011 is a PLL unlocking switching transistor. Usually, the
base of 011 is supplied with OV("L"), and the collector
is supplied with 8V ("H").
When the PLL is unlocked, the base of 011 is
supplied with 0.7V, turning 011 on. As a result, the
collector of 011 becomes "L"(OV). This turns 010 off
and the collector of 08 becomes 8V, turning it off.
Therefore, when the PLL is unlocked, 08 is off removing
bias voltage from the 8T line. Without the 8T voltage no
transmit signal is generated.
Digital Control Unit
• Overview
The digital control unit consists of a several keys, a
rotary encoder input, a display, a reset circuit, a back-up
circuit, and a tone output circuit. These circuits are
controlled by a single microcomputer (CPU).
From pin 8 of
shift register
IC201
Icpul
P01
P02
P03
8C 8 T PLL sub-unit
o
III
Cl: III
IC3·---
DI-....----.--w..-H
Fig. 4 8T and unlock circuits
5C
:.:
:.: :.:
,..
,.. ,..
v v v
43
42
41 1K
1K
1K
1
From pin 14 of
o
ICl
1
• Key and rotary encoder input circuits
The keys on the panel are arranged in matrix. Key
input is fed into the CPU, using a key scan technique.
Output from the rotary encoder is fed directly into the
CPU.
• Microphone key input circuit
The UP, DOWN, and other function keys of the
microphone are directly connected to their correspond-
ing analog input pins of the CPU. Each of the functions
is activated by a voltage generated when the corre-
sponding key is pressed.
• Reset and back-up circuits
When the TM-441 AlE power is turned on, the
reset circuit sends a "L" level pulse to the RESET pin
of the CPU for approx. 3ms. This initiates the power-.
on reset sequence.
When the TM-441 AlE power is turned off, the
back-up circuit detects a voltage drop in the 13.8 V
line and sets CPU INT4 to a "H" level. This causes
the CPU to enter a back-up state.
~
PTHOO
33
PTH01
Fig. 5 Microphone key input circuit
0204
r.--,
5C
I
L_
~--------~--~~ I
1
1
PTT UP OOWN CALL VFO MR PF
0205
r::--,
I
I
:.J
I
L_
:J
:::
I--~ ~
I
0214 -
I
L ,__
Back-up circuit
:.:
0
58
voc
cp
Vss
26
~
ul
1~~1~1
IC2011
.........,,-+_7'-1
RESET INT4 44
r--; I
I
r-..--'----------'
I
..J
Fig. 6 Reset and back-up circuits
5
Page 6

TM-441A/E
C IR C U IT D E S C R IP T IO N
• Display circuit
The display circuit is contained in the LeO asseroblv
It consists of a LeD driver. its oAripheral circurrs. and an
LCD. The LCD is dvnaroicallv ope-ated
(It
?
50% dutv
cycle. The LeD driver receives LCD data from P33,
P141, and P140 of the CPU.
• Dimmer circuit
The lamp circuit generates a constant voltage of
about 8.8 V with SB. 0205. and 0202. The lamp cir-
cuit resistance is changed by turning 0203 and
0204 on and off to control the dimmer. If the lamp is
snorted. 0206 decreases the 0205 VBE to prevent
an overcurrent from flowing through 0205.
R204 4.7
r-/-+--LAMP
P50
Brightness
P50
P51
SSO---f---,(
R209
560
Bright
I
H
H
R207 lOK R206
0205
2SD1862(RS)
2
L
H
H
L L
Dark
4
L
R203 18
P51
• Shift register circuit
The shift register circuit consists of IC3 (TC9174F).
The IC3 receives serial data from the microcomputer to
perform the controls listed below.
Pin
No.
Pin name
1 GND
2 B1 Usually "H".
3 B2
4 CE
5 VOLD
6 VOLU
7 MUTE
a
T/R
TXM
9
10 TXH
11 B3 Usually "H".
12
13 DATA Serial data input.
14 CLOCK Clock input.
15 EN
16 VDD
Usually "L".
Electronic VOL select:
"H" when electronic VOL selected, "L" when
panel VOL selected or interface connected.
Electronic
VO L D O W N : "L"
Electronic VOL UP : "L" when UP key ON.
AF MUTE: "H" when TX mode, AL 1ch
receive mode, CTCSS, bell, or squelch is ON.
Transmit/receive select: "H" in RX mode.
"L" in TX mode.
TX power select: "H" in HI or MID mode,
"L" in LOW mode.
TX power select: "H" in HI mode,
"L" in MID or LOW mode.
-
Open.
Enable input.
Table
Function
when
4
D O W N
key
O N .
Fig. 7 Dimmer circuit
• Tone output circuit
R246 (ladder resistor) receives signals from P40 to
P43 and P52 to P53 of the CPU and converts them
from digital to analog to produce 38 different wave-
forms from 67.0 Hz to 250.3 Hz. Figure 8 shows the
internal configuration of R246.
1
20K
8.,-
7 .,-
6
5
4 .,-
~
3/
. . . . . . .
2/
~
1
.,-
. . . . . .
P43
P42
P41
P40
P53
P52
:.:
S 2
20K
:.:
S 2
20K
:.:
s
20K
20K
:.:
~
20K
:.:
'2
20K
:.:
'2
20K
Tone outp
9
10
20K
11
20K
12
.) "
ut
13
14
15
16
1
20K
20K
Fig. 8 Internal configuration of ladder resistor
6
(TX-RX unit 8/2 R2461
Page 7

CIRCUIT DESCRIPTION
TM-441A/E
• PLL data output
PLL data is available from P21 (CK). P22 (DT). P61
(ACL), and P23 (EN1) of the CPU. Figure 9 is a timing
chart for PLL data transfer, and Figure 10 shows the
format of PLL data.
CK
DT
=C><JL--IX=
MSB LSB MSB LSB
ACL
ENl
Fig. 9 Timing chart for PLL data transfer
LSB
Shift register
; I
I I
Division ratio A in ~
swallow counter ~
Division ratio N in
main cou nter
Port setting
Reference
frequency select
---------------------~
I
I
--.j
'--'---L---'---'--'-.o.....-,---,--,---<
I I
• Input and output of CTCSS unit (option)
The optional CTCSS unit receives data from P21,
P22, and P73 of the CPU. Figure 11 is a timing chart
for CTCSS data transfer, and Figure 12 shows the
format of CTCSS data. When a tone from the CTCSS
unit is detected, a "H" level signal is sent to P63 of
the CPU, opening the squelch.
• Input and output of the remote control unit
(option)
When the optional remote control unit is connected,
a "H" level signal is applied to INTOof the CPU, and the
following pins have different functions:
P03 ~ Sl : Serial data input pin
P02 ~ S2 : Serial data output pin
POl ~ SCK : Serial clock
CTC
I
8bit
I/O
pin
--
MSB
,
I
I
I
I
I
I
I
I
I
I
CTD ~~~ _
MSB LSB
CTS
Fig. 11 Timing chart for CTCSS data transfer
Tone frequency select data for CTCSS nuit
\ The 21-bit data is made up of the following:
1. Division ratio data A and N (17 bits)
F (display - 30.825MHz in RX mode)
=
{(N x 128) + A} x 12.8MHz / ref
N : Division ratio set in 10-bit main counter (binary)
A : Division ratio set in 7-bit swallow counter (binary)
2. Reference frequency (ref) select (2 bits)
Data
D1 D2
L L 5kHz
H L 6.25kHz
3.
Switch select (2 bits)
Data
D3 D4 SW1 SW2
L H L H
H
Phase reference
frequency
Output port
L H L
5, 10. 15. 20, 25kHz step mode
12.5kHz step mode
RX mode
TX mode
Fig. 10 PLL data format
~
Example: 88.5Hz L H L H H H
Fig. 12 CTCSS data format
7
Page 8

-
TM-441A/E
CIRCU IT D ES CRIP TIO N
Pin No. Pin name
1 P41
2 P40
3 P53 0
4 P52 0
5 P51 0
6
7
8 X2
9
10 P63 I H
11 P62 0 H Power switch. 43 P01/SCK
12 P61 0
13 P60 I
14 P73
15
16
17 P70 0 H
18
19 P82 0 H
20 P81 0 L
21 P80
22 P93 0 H
23 P92 0 H
24 P91
25 P90 0 H 57 NC
26 Vss
27 P13
28 INT2 I
29 INTl I
30 PlO
31 PTH03 I
32
P50
RESET I L Reset input. 39
Xl
P72
P71
P83 0
PTH02
Logic
1/0
0
-
-
0
-
D/A digital output (tone).
-
-
0
-
-
-
-
0
0 H
0 H
0
0 H
-
I H
I
I
4.194304MHz crystal oscillator.
-
CTCSS tone matching input. 42
Not used.
-
Not used.
-
H CTCSS unit enable output.
Shift register enable output. 47 P121 I L SHIFT. MHz
DRS unit VOB output.
DRS unit VOA output.
-
Not used. 50 P132 I L LOW. DRS
DRS unit STBY output. 51 P131 I L
DRS unit WR output.
L DRS unit RD output. 53
DRS unit data output.
GND. 58 VDD
-
DRS unit connect check.
-
Encoder input.
-
Remote connect detect input. 62 P30 0
H
-
S-meter analog input. 63 P43 0
Not used. 64
-
Function
Pin No. Pin name
33
34 PTHOO I
35
36 Tll L
37
38
40
41
44 INT4 I H
45 P123 I L CALL. VFO
46 P122 I L
48 P120 I L
49 P133 I L REV
52 P130 I L
54 P142 0 H
55 P141 0
56 P140 0
59
60 P32 0 L
61 P31
1/0
PTHOl I
Tl0
P23
P22
P21
P20
P03/SI
P02/S0 I/O
-
-
0 L
0
0
0
1 / 1
1/-
P143 0 L
-
- -
P33
P42
0
0
0
Logic
-
Mic DOWN input.
Mic UP input.
-
L Not used.
Not used.
PLL IC enable output.
-
PLL IC data output.
PLL IC clock output.
-
Beeper output.
-
Mic DOWN/serial data input.
u-
Mic PTT input/serial data output.
L/-
Mic UP input/serial clock I/O.
L/-
Back-up detect input.
F. MR/M
TONE
Transmit power select.
Busy input.
Squelch control.
Dimmer control.
LCD driver clock output.
-
-
LCD driver data output.
Not used.
-
Power supply pin.
-
LCD driver enable output.
Distination output.
L
Key output.
L
-
D/A
-
digital output (tone).
Function
Destination.
key input.
8
Table 5 75116GF-728-3BE terminal functions (TX-RX unit IC201)
Page 9

TM-441A/E
DESCRIPTION OF COMPONENTS
TX-RX UNIT (X57-370x-XX) 0-11: TM-441A (K, P) 0-21: TM-441A (M) 2-71: TM-441E (E)
Component
IC1
IC2
IC3
IC4
IC5
IC6
IC8
IC9
IC201
IC202
Q1.2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Use/Function
2nd local oscillator,
IF amplification,
detection,
low-frequency amplification,
noise amplification,
noise detection,
squelch switching
AF amplification
Shift register
5VAVR
10V AVR
Transmit drive
8VAVR
Electronic volume control,
AF switch
Microprocessor
6VAVR
High-frequency amplification
1st mixer
Low-frequency amplification
High-frequency amplification
AF line mute
8R switching
8T switching
8R switching control
8T switching control
8T switching control
CD
1st IF signal input (30.825MHz).
@ @ 2nd local oscillator (30.37MHzl.
® Busy output.
@
Squelch control.
® S-meter output.
@
RD output.
® Low-frequency output.
CD
AF input, ® AF output.
See circuit description.
For PLL.
@
AF output.
@ "L" during step-up.
@ "L" during step-down.
® "H" when electronic volume selected.
See circuit description.
Operates in receive mode.
Converts received 430MHz-range signals to 1st IF 30.825MHz.
Operates when DRS unit connected.
Amplifies 1st IF signal.
Operates when transmit mode, AL 1ch receive mode,
ON in receive mode.
ON in transmit mode.
ON in receive mode.
ON in transmit mode.
OFF when PLL locked.
Operation/Condition/Compatibility
01 01 05
NOISEAMP NOISEOET AF AMP
SC HSM 2SC
~g~ll 88AS ~~11 2 GNC
cl
J
MIX AMPOET
IF, IICl ;"C3~72
"
h
15 17618
- 0 Na:0
x ~
I&. Cl) U
(f)
Panel volume input.
® Panel volume output.
@ AF input.
crcss,
8R~ .
.L"--"
f+-,~r!J>r---+~~,~~f);)r-i+~--'lJ.
lC3-8
T
* , ~ ~,/
r---' ,
J.
1
L__
04
v-
/"-<1)---t..........,>-+--w. ...•
L;:
~W
09
•. !>:
02
L~~
c:::~
-
I
c:J.
sw
12 10 9 11 ,4 13 4.
>-
o
'"
bell or squelch is ON.
8C 8T
-
07 08 lCl-14
034
wF'FI T
2SC
I~~~xk
R
15
05 7
16
GN[.
RA
PLL
Q12
L
I
I
L
I
~
I
I
~
I
r
J
---------
l
Q13
Q14 PLL output amplification
8T switching control
PLL 8V ripple filter
OFF in transmit mode.
~'1
£
1'"
9
Page 10

TM-441A/E
DESCR IP TIO N O F C O M PO N E NTS
Com p o n ent
015
016
017
018
019
024
025 RD line mute
026 AF line mute
027 Squelch hysteresis
Use/Function
TX power select
TX power select
TX drive stage +B control
Power switch
Power switch control
Mic amp. mute ON in receive mode.
Operation/Condition/Compatibility
ON in HI or MID mode.
ON in HI mode.
ON when power switch is ON.
ON when DRS unit replays.
ON when DRS unit replays.
ON when squelch is
ON.
APCIX59-3130-001
I
PCV Fe DB
APe
r---'Wv-----<
---I
I
POWER~MOOULE
I
IL- -----' 0!7
011
re a
•~V
BC AVR
PSW
1
Q24 ~ MAX DEV.
I
TONE
B113.8Vl
_018
~r-"
~ IBI
13.8V
r~ V C O
1
i
IC3-8
IT/RI
1 _ _
~_2_~_0_12r-F_u_n_c_t_io_n_0__im__m_e_r_s_w_i_tc_h__ ----,~
0203 Lamp Dimmer switch
-206
0207
0208 Back up switch
D1 ON in receive mode.
D3 -
D6 VCO output switch ON in transmit mode.
D7 Temperature compensation For APC.
D8,9 Transmit/receive switching
D10, 11
D12 Reverse power protection
D15 Transmit/receive switching
D202 Lamp standard voltage
0203 Dimmer Switch
0204,205
0206
-211
0212
0213
0214
0215 Reset detection
0216 Function LEO
Reset switch
VCO output switch
Reverse current prevention
5
Power detection
Reverse current prevention
To be set at destinaton
Microprocessor protection
Reverse current prevention
Back up detection
ON
for approx. 3 rns usually
OFF when 13.8 V line becomes 7.5 V or less, usually
For APe.
5C>-~1:D2~1_5~1-~~!r-ik~~~~~~------~
ON.
r h
D..•~14
"
ON.
0206
IC201
INT4
10
Page 11

TM-441A/E
DESCRIPTION OF COMPONENTS
PLL (X58-3480-00)
Component
ICl PLL
-Ql - 3
Q4
Q5 VCO output buffer
cioi
Ql02
r
~
I
>-
,
Dl01,102
Dl03 For modulation in TX mode
Use/Function
G)
VCOinput 399.175 - 409.170MHz (M,El. 407.175 - 419.170MHz (K,P) in receive
mode.430.000 - 439.995MHz (M,El. 438.000 - 449.995MHz (K,P) in transmit mode.
® "H" in transmit mode.
LPF
Transmit switch ON for moment when transmission starts.
VCO 399.175 -409.170MHz (M,El.407.175 -419.170MHz (K,P) in receive mode.
430.000 - 439.995MHz (M,El. 438.000 - 449.995MHz (K,P) in transmit mode.
VCO output buffer
VCO voltage control
Operation/Condition/Compatibility
@
"W when PLL unlocked.
~
r
~
APC (X59-3130-00)
Component
Ql Differential amplification
Q2 (2/2)
Q3 Drive stage +B AVR
MIC AMP (X59-3610-00)
Component
ICl (1/2)
ICl (2/2)
Ql Low-frequency amplification
Use/Function
APC control
Use/Function
Limited amplification
LPF
Operation/Condition/Compatibility
Operation/Condition/Compatibility
~
l
l
11
Page 12

TM-441A/E
P A R T S LIS T
CAPACITORS
1=Type •..... ceramic. electrolytic. etc.
2=Shape round. square, etc.
3=Temp. coefficient
CC
45
TH 1H 220
1 2 3 4 5 6
e Temper8tUre Coefficient
1st Word
Color*
ppm/"C
C
Red
Black
0 -80 -150
L
Orange Yellow
P
e Toleran ••
Code
C
0
G J
(%)
Lessthan 10pF
± 0.25
±0.5 ±2
±5
e Rating voltalll
word
1st
'S
word
A
0 1.0
1 10 12.5 16
2 100
3 1000 1250 1600
B C
1.25
125
1.6 2.0 2.5 3.15 4.0 5.0 6.3
160 200 250
e Chip capacitors
cc
(EX)r
(EX)r-,
73 F SL1HOOO
J7J ,.
1234567
(Chip) (CH,RH,UJ.sLl
CK73FF1HOOOZ
r - , . , . '- '
~f"
T
1234567
(Chip) (B,F)
~T J
C:jJ C=~J
r.-J
T -~~-, -
J
( : 7 - : . ; . . . .
'--J[-
RESISTORS
e Chip •.••istor (Carbon)
RD73E 828000J
( )
EX
rr=> r-r-:••
T",'
1234567
r-~
t "'~ -"
(Chip) (B,F)
r-;
r---, r~
-'r-~
e Carbon resistor (Norma' type)
J
4=Voltage rating
5=Value
6=Tolerance
R
S T
Green
Blue
-220
-330 -470
K
M
± 10
± 20 +40 +80
0
20 25
2000 2500 3150 4000 5000
E F G
Refer to the table above.
1=Type ceramic, electrolytic. etc.
2=Shape round, square, etc.
3=Dimension
4=Temp. coefficient
5=Voltage rating
6=Value
7=Tolerance.
U
Violet
-750
X
-20 -20
31.5 40
315
Example CC45TH: -470±60 ppm/"C
Z
P
+ 100
-0
400 500 630 800
e C8PKitor value
o
1 0=1pF
o
0
=
lOpF
o
1=100pF
o
2 = 1000pF = O.OOlI1F
Nocode
More
lO~F-l 0- +50
than
L•••
4.7~F-l0-+75
than
H
50
J
63 80
K
8.0
V
-
35
-
6300
Dimension
_ .
f--
Dimension
Rating -ttatII
Cord Wattage Cord Wattage Cord
8000
Dimension code
Empty
E
F
Dimension code
E 3.2±0.2
F 2.0±0.3 1.25±0.2
2A
1/10W
2B 1/ 8W
2C
1/ 6W
-
5.6±0.5 5.0±0.5
3.2 ± 0.2
2.0:1: 0.3
2E
2H
L
L
1 0 3 = O.Q1I1F
1st number Multiplier
W
1.6±0.2
1.25 ± 0.2 Lessthan 1.25
W T
1.6±0.2
1/4W
1/2W
0.57 2B
0.45
Wattage
3A lW
3D
2 2 0=22pF
r
- r - - ,
2nd number
Lessthan 2.0
Lessthan 1.25
Wattage
2A
2W
T
Dimension
12
Page 13

TM-441A/E
~ New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dens le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlcnt gellefert.
Ref. No. Address
#
IIHt
-i}
fl! •
New
Parts
fi
PARTS LIST
Parts No.
TM-441 AlE
1
2
3
4
5
5
6
'7
8
9
10
10
10
11A
118
12
IB
2B
1C
2B
2A
2A
26
2B
28
18,lC
AOI-I065-03
A01-1066-03
A10-1292-01
A22-0770-03
*
A62-0012-23
*
A62-0013-23
611-0484-08
630-0869-05
B38-0330-05
*
642-2455-04
842-3343-04
842-3356-04
842-3394-04·
846-0410-20
846-0419-00
846-0422-00
*
862-0031-00
*
B62-0032-00
*
862-0033-00
*
872-0099-04
*
872-0100-04
METALLIC CA6INET(UP SIDE)
METALLIC CABINET(6~TT~M)
CHASSIS CALKED ASSY
SU6 PANEL
PANEL ASSY
PANEL ASSY
fILTER
LAMP
DISPLAY ASSY
LA6EL(M4x8 MAX)
SERIAL No LABEL
LA6EL(EXT SP)
LABEL(fCC)
WARRANTY CARD
WARRANTY CARD
WARRANTY CARD
INSTRUCTI~N MANUAL
INSTRUCTl~N MANUAL
INSTRUCTI~N MANUAL
M~DEL NAME PLATE
M~DEL NAME PLATE
Description
Desti- Re-
nation
ft
(ti] ••
KMP
El
K
K
El
P
K
MPEl
El
KP
M
marks
13
14
15
13
16
17
a8
19
20
21
22
23
24
25
26
27
28
29
30A
308
31
32
1C
1C
lC
lC
2C
2B
26
18
2A
le
1B,2C
16,26
26
2A
2B
*
872-0101-04
1330-2108-05
1330-2111-05
1330-213'7-15
1330-2145-05
1331-319'7-15
f05-1031-05
f05-2036-05
*
fll-1133-14
*
f15-06'70-04
f20-0587-04
*
f20-1059-04
G02-0550-04
G02-0558-04
G02-0576-14
G09-0405-05
GI0-0651-04
G10-0681-04
GI0-0686-04
G13-0906-04
G13-0926-04
G13-0960-04
G13-0961-04
H10-2658-02
H11-0822-04
HI1-0823-04
H13-0814-04
H13-0825-04
M~DEL NAME PLATE
ANT CABLE
DC P~WER C~RD
DC P~WER CIl1RD
ANT CABLE
CIl1NN8CTING WIRE(SP)
fUSE (lOA)
fUSE (20A)
SHIELDING CIl1VER(M~DULE)
SHADE
INSULATING B~ARD(BATT)
INSULATING BIl1ARD(BATT)
fLAT SPRING
FLAT SPRING
fLAT SPRING
KNIl1BFIXD SPRING
N~N-W~VEN fA6RIC(SP)
N~N-WIl1VEN fABRIC(CHASSIS)
N~N-W~VEN FA6RIC(CASE)
CUSHIIl1N(3KEY)
CUSHIIl1N(B/2 UNIT)
CUSHHIIN(6KEY)
CUSHlIl1N(LIl1WKEY)
PIl1LYSTYRENE f~AMED fIXTURE
PIl1LYSTYR8NE PLATE
PIl1LYSTYRENE PLAT8
P~LYSTYR8NE PLATE
PIl1LYSTYR8NE PLATE
El
El
KMP
K
MPEl
MPE1
33
H25-0029-04
PRIl1TECTlll1NBAG(MIC HIl1~K)
KP
TM-441 A: K,M,P
TM-441E: E
13
Page 14

TM-441A/E
*New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlcht gellefert.
Ref. No.· Address
#
IlIHi
-i j -
{tL •
34
35
36
36
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
lC
2A
28
2B
2B
2A
2A
2A
2A
2A
2A
2A
N e w
Parts
fi
*
*
*
*
*
*
Parts No.
H25-0117-04
H25-0720-04
H52-0059-04
H52-0060-04
H52-0061-04
H62-0052-14
H62-0053-l4
JI9-1434-04
J20-0319-24
J21-4147-14
J21-4303-08
J29-0436-03
K27-3035-14
K27-3066-04
K2'l-3067-04
K27-3068-04
K27-3069-04
K27-3071-04
K27-3072-04
K27-3074-04
K27-30'l5-04
K29-3156-04
P A R T S L IS T
PR~TECTI~N BAGCDC P~WER C~RD)
PR~TECTI~N BAGCTM-441A/E)
ITAM CART~N B~X
ITAM CART~N B~X
LTAM CART~N B~X
QUTER PACKING CASE
QUTER PACKING CASE
H~LDER(SP)
MIC H~~K
STACKING PLATE
M~UNTING HARDWARE(LCD ASSY)
BRACKET
KN~B(VF~,MR,MHz)
KNI'lJB(P~WER)
KN~B(L~W)
KN~B(CALL>
KN~8( F )
KN~B(T~NE)
KN~B(REV)
KN~B(SHIFTl
KN~B(DR/DTl
KNI'lJBASSY(MAIN)
TX-RX UNIT (X57-370X-XX)
Description
Desti- Re-
nation
f± r6J.;If
KP
M
El
KMP
El
KP
marks
52
A
B
C
G
D
E
F
53
SP
54
54
54
le1
IC301
55
56
57 2B,2C
57 28,2C
57 2B,2C
TX-RX UNIT (X57-370X-XX) 0-11: TM-441A(K,P) 0-21: TM-441A(M) 2-71: TM-441E
Cl CC73FCHIH020C CHIP C 2.0PF C
C2 -4
CS CC73FCHIH010C
C6 CC73FCHIH390J CHIP C 39PF J
C7 C92-0511-05
2A
2B
2B
lC,2C
lC,2C
28
28
lC
28
K29-3157-04
N09-0626-04
N09-0650-05
N33-2606-45
N46-3010-46
N87-2606-46
N87-2610-46
N88-2606-46
N99-0331-05
T07-0246-05
T91-0379-25
T91-0380-35
T91-0382-25
LC75B2
M57788M
WOI-0414-04
W09-0326-05
*
X57-3700-11 TX-RX UNITCA/2,B/2 C~NT) KP
*
X57 - 3 'lO O - 2 1
*
X57-3702-71 TX-RX UNITCA/2,B/2 C~NT) El
CK73FBIHI02K
KN~B ASSY(V~L,SQL)
SCREW
SCREW
~VAL HEAD MACHINE SCREW
TAPPING SCREW(MIC H~~K)
BRAZIER HEAD TAPTITE SCREW
BRAZIER HEAD TAPTITE SCREW
FLAT HEAD TAPTITE SCREW
SCREW SET
L~UDSPEAKER(FULLRANGE)
MICR~PH~NE
MICR~PH~NE(DTMF)
MICR~PH~NE(T~NE)
IC(LCD DRIVER)
IC(P~WER M~DULEI 430-450MHZ)
WRENCH
LITHIUM BATTERY
TX-RX UNITCA/2,B/2 C~NT) M
CHIP C
CHIP
C
CHIP TAN O.15UF 35WV
1000PF K
1.OPF
C
KP
M
KP
El
C8
CI0 CC'73FCHIH020C CHIP
C11 CC73FCHIH180J CHIP C 18PF J
C12 CK'73FBIHI02K CHIP C
14
CK73FBIHI02K CHIP C 1000PF K
C 2.0PF C
1000PF K
TM-441 A: K,M,P
TM-441E: E
)
)
Page 15

TM-441A/E
*
New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlont gellefert.
11
New
Parts
Ii
CC73FCHIH080D CHIP
CK73FB1H102K
CC73FCH1H390J
CE04EW1A470M ELECTRIll 47UF 10WV
CK'l3EF1C105Z CHIP C 1.OUF Z
C92-0002-05
CK73EBIHI04K CHIP C O.lOUF K
CK73FB1H103K CHIP C O.OlOUF K
CE04EW1C470M
CE04EWIA471M
CE04EWIA470M
CK73FBIH2'l3K CHIP C 0.027UF
CK73FB1H103K
CE04EW1E4R'lM ELECTReiJ
CE04EWlA470M
CE04EWlA4'70M
C92-0504-05 CHIP TAN 0.68UF 20WV
CE04EW1C4'70M ELECTReiJ 47UF lbWV
Ref. No.
#
lHHI-it
C14 ,15 CK73FBIHI02K
C16
C18 CK73FBIHI02K CHIP C
C19 CC73FCH1H120J CHIP C 12PF J
C20
C22
C23 CK73FB1H102K CHIP C 1000PF K
C24
C25
C26
,30 CC73FSL1HIOIJ
C29
C31
C32
C33
C34
-37
C35
C39
C40
C41
C42
C44
C45 CK73FBlHl03K
,47
C46
-50 CK73FBlH102K
C48
C5l
Address
{ft
PARTS LIST
Parts No.
oH.
S
•
-it
TX-RX UNIT (X57-370X-XX)
Description
oH.
S
CHIP C
C
CHIP C 1000PF K
CHIP C 39PF J
CHIP TAN
CHIP C
ELECTR(I]
ELECTR(I]
ELECTR(I]
CHIP C
ELECTR(I]
ELECTReiJ 47UF 10WV
CHIP C
CHIP C
~/1!1!.
1000PF
8PF D
1000PF
0.22UF 35WV
100PF J
47UF 16WV
470UF 10WV
OUF
O.OlOUF K
4.7UF 25WV
47UF 10WV
O.OlOUF
1000PF
~ i±
K
K
10WV
K
K
K
Desti-
nation
Re-
marks
~."'f
C52
,55
C54
C56 CK73FB1H103K CHIP C O.OlOUF K
C57 CE04EWlA470M ELECTReiJ
C58 CK73FB1H103K CHIP C O.OlOUF K
,60 CE04EWlA221M ELECTReiJ
C59
'C6l
C62 CK73FB1Hl02K
C64
C65
,67 CK73FB1Hl02K CHIP C 1000PF K
C66
-70
C69
,72
C71
C73
C74 CK73FBlH102K CHIP C 1000PF K
C76 CK73FB1H102K
C78 CK73FBlH47lK CHIP C 470PF
C79 CM73F2H070D CHIP
C79 CM73F2H060D
C79 CM73F2H090D CHIP C 9.0PF
C80 CC45SL2H040C CERAMIC 4.0PF
C82 CC45SL2H150J CERAMIC 15PF
C83 CC45SL2H220J
C84
C85 CC73FCH1HOlOC
C86 CC45SL2H040C CERAMIC 4.0PF
C87 CC45SL2H070D CERAMIC 7.0PP
C88
C90
C9l
CK73EB1E683K
CK73FBlHl02K CHIP C 1000PF
CK73FB1H103K CHIP C O.OlOUF
CK73FB1H103K CHIP C O.OlOUF K
CC'l3FCHlH070D
CK73FBlHl02K CHIP C
CK73FB1Hl02K
CC73FCHlH040C CHIP
CC73FCHlHOR5C
CC73FCHlHOR5C
CC73FCH1HOlOC
CK'l3FBlHl02K
CHIP C
CHIP C 1000PF
CHIP C 7PF D
CHIP C
C
CHIP C
C
CHIP C
CERAMIC 22PF J
CHIP C 0.5PF
CHIP C lPF C
CHIP C 0.5PF C
CHIP C 1PF C
CHIP C 1000PF
0.068UF
4'7UF
220UF 10WV
1000PF
1000PF
4PF C
1000PF
'l.0PF
6.0PF
K
K
10WV
K
K
K
K
K
K
D M
D KP
0
C
J
C
C
0
K
El
TM-441 A: K.M.P
TM-441E: E
15
Page 16

TM-441A/E
*New Parts
Parts without Parts No. are not supplied.
t.es articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlcnt gellefert.
•
New
Parts
fi
Parts No.
. ! l a
S
CC4.5SL 2 H04.0C
CK73PB1 H 103K CHIP C 0 .010UP
CE04.EW 1 C100M
CK73PB1 H 103K CHIP C 0 .010UF
CK73PB1 H 102K CHIP C 1000PF
CC73FSL 1 H101J CH I P C 100PF
CK73FB1 H 102K
CK73FBI H I02K
CK73FB1 H 102K CHIP C 1 000PF
CK73FB1 H 103K
CE04.NW O J221M
CK73FBI E 223K CHIP C
Address
No.
Ref.
f l : 6 . J : - i t
C92
C93
C94.
,96
C95
C97 C 90-2092-05
,100
C99
CI02 CK73FBI H I02K CHIP
C103
CI04.
C107,10 8
C109,11 0 CC73FSL I HI01J
c
iii
Cl12 CC73FSLIHI 0 1J CH I P C 1 00PF
C113 CK73 F BIH332K CHIP
C201 CK73FBI H I02K
C202 CK73FBI H I03K CHIP C 0 .010UF K
C203 CK73FB1H10 2 K C H I P C 1000PF K
C204.
C205
C206
ttL
P A R T S L IS T
.J:
-it
CERAMIC
ELECTRl S l
ELECTR( I )
CHIP C 1 000PF K
CHIP C
CHIP C lOOPF J
CHIP C 1000P F K
CHIP C
ELECTRl S l 220UF 6.3WV
TX-RX UNIT (X57-370X-XX)
Description
. ! l a
S
C
C 3300PF K
~/m
4..0PP
10UF 1 6 WV
10UF 1 6 WV
1000PF
1000PF
O.OlOUF K
0.022UF K
* !
C
K
K
K
J
K
K
J
Desti-
nation
ft
K
rt;]
Re-
m a r k s
ft::lt
C207 CK73FB1 H 102K
C208,20 9
C210,21 1
C212-21 4 .
C215-21 7
C219,22 0
TCl
,3 C05-034 . 8-05
TC2
CNl
CN2
,4 E4.0-52 0 2-05
CN3
eN5
CN201,2 0 2 6 4.0-5203-0 5
CN203
CN204.
CN205
J1
J201 E06-086 0 -05
TP1 E40-021 1 -05 PIN ClS l NNECT(I)R
,3 E23-04.65- 0 5
TP2
'Ill
'11201
'11202
CD1 L 79-1013-05
CF1 L 7 2 -0372-05
Ll
L2
L3 L79-069 0 -05
CC73FCH 1 H330J
CK73FB1 H 103K
CC73FSL 1 HI01J CH I P
CK73FBI H I02K
CK'i3FB I HI03K
C05-035 4 .-05
E4.0-32 3 7-05
E4.0-51 8 2-05
64.0-51 8 3-05
E4.0-51 8 5-05
E4.0-51 8 7-05
640-534 . 1-05
E11-04. 2 5-05
E33-190 2 -05 FINISHED WIRE S ET(HET)
E31-600 3 -15 ClSlNNE C TING W I RE(CTCSS)
E33-187 1 -15
131-053 4 .-05
L4.0-18 7 2-80
L4.0-12 7 2-4.8
CHIP C 1000P F
CHIP C 33PF
CHIP C 0.010UF
C 100PF J
CHIP C
CHIP C 0.010UF
TRIMMIN G
TRIM CAP
ClSlNNE C T(I)R(SP)
PIN
ClSlNNE C 1'(ilR(DRU)
PIN
ClSlNNE C T(I)R(13PIN)
PIN
ClSlNNE C Tt'ilR(6PIN DTMF)
PIN
C(I)NNE C TlSlR(13PIN)
PIN
Ct'ilNN E CT(I)R(8PIN DRU)
PIN
Ct'ilNN 6 CT(I)R(10PIN DRU)
PIN
PIN Ct' i lNNECTt'il R ( 9PIN LCD )
PHt'ilN EJACK(3. 5 D:EXT SP)
8 PI N METAL S lSlCKET(MI C )
TERMINA L
FINISHE D W I RE SET
ClSlLLA R (LED)
FILTER
CERAMIC F I LTER
SMALL F I X ED
SMALL F I X ED INDUCTt'i l R(12n)
HELICAL B L lSlCK
1000PF K
CAP
INDUCTl S lR(18n)
K
J
K
K
3PF
10PF
L5
L6
Le
L8
L8
16
L79-069 0 -05
L4.0-15 7 2-4.8
L4.0-18 7 2-4.8
L4.0-18 7 2-4.8
L4.0-33 7 2-4.8
HELICAL B L ISICK
SMALL F I X ED
SMALL F I X ED INDUCTlSl R (18n)
SMALL F I X ED
SMALL F I X ED I N D UCTt'ilR(3 3 n )
INDUCT( I )R(15n)
INDUCT( \ )R(18n)
KP
MEl
El
KPM
TM-441 A: K,M,P
TM-441E: E
Page 17

TM-441AIE
*New Parts
Parts without Parts No. are not supplied.
Les articles non mentlennes dans le Parts No. ne sent pas fournls.
Telle onne Parts No. werden nlcht gellefert.
•
New
Parts
IT
L34-2157-05 Ct!JIL
L40-1092-81 SMALL FIXED
L40-1001-4B SMALL
L40-2272-4B SMALL FIXED
L34-090B-05 Ct!JIL
L34-1123-05
L34-1032-05
L34-0908-05
L77-1312-05
L77-1405-05 CRYSTAL
L77-1397-05 CRYSTAL RES(\)NATt!JR(4.19MHz)
L71-0270-05 MCF (30.825MHz)
R92-0670-05 CHIP
RK'73FB2AI04J
RK73FB2AI0IJ' CHIP R 100 J
R92-0b70-05 CHIP R
RK'73FB2A470J CHIP R 47 J
RK73FB2A223J CHIP R 22K
Address
No.
Ref.
_!!IHt-i!-
L9
LIO
Lll
L12
L13
LI4
LI5
,I7 L34-1123-05
Llb
L18
Xl
X2
X201
XFl
R1
R2
R3 RK73FB2A333J
,5
R4
R12
R13
R14 RK73FB2A220J
,17 R92-0670-05 CHIP R
R1b
R18
-21 RK73FB2AI02J CHIP R
R19
-!l!
PARTS LIST
Parts No.
••
-i!-
.!!.
M
C(s)IL
Ct!JIL
C(s)IL
C(\)IL
CRYSTAL
CHIP R lOOK J
CHIP R 33K J
CHIP R 22 J
TX-RX
Description
.!!.
B\!
FIXED
RES(s)NAT(s)R(30.37MHz)
RES(s)NAT(\)R(12.BMHz)
R
~/~
INDUCTt!JR(lu)
INDUCT(s)R(lOu)
INDUCT(s)R(22u)
o (s)HM
o (s)HM
o (\)HM
1. OK
UNIT
(X57-370X-XX)
~ f±
111011
1/1011
1/1011
1/1011
1/1011
J 111011
111011
J
Desti-
nation
Re-
marks
f,;]
.~
J
J
J
J
J
J
J
J
J
J
1/1011
1/10'1/
1/1011
1/101/
1/1011
1/1011
1/1011
1/1011
111 Oil
1/1011
1/1011
1/1011
1/1011
1/1011
1/101/
11101/
1/101/
1/101/
1/1011
1/101/
1/1011
1/101/
1/1011
1/1011
1/1011
R23
R24
R25
R2b RK73FB2A471J CHIP R 470 J
R28
R29
R31 RK'73FB2A331J CHIP R
R32
R33 RK73FB2A334J CHIP R
R34 ,35 RK73FB2A102J CHIP R
R36 RK73FB2A331J
R37
R38 RK73FB2A101J CHIP R 100 J
R39
R40
R41 RK73FB2A333J CHIP R 33K J 111011
R42
R43
R44
R45 RK73FB2A473J CHIP R 47K J
R46 RK73FB2AI02J CHIP R
R47 RK73FB2AIB2J
R4B -50 RK73FB2AI03J CHIP R 10K J
R51
R52 RK73FB2A334J CHIP R 330K J
,54 RK'73FB2A223J
R53
R55 RK73FB2A473J CHIP R
R56
R57
R58 RK73FB2A392J CHIP R 3.9K J
RK73FB2A221J CHIP R 220 J
RK'73FB2A470J CHIP R 47 J
RK73FB2A122J CHIP R
RK73FB2A334J CHIP R 330K J
RK'73FB2AI02J CHIP
R92-0670-05 CHIP
R92-1220-05
R92-0670-05 CHIP R o lIlHM
RK73FB2A473J
RK73FB2A223J CHIP
RK73FB2A472J
RK73FB2AI02J CHIP R
RK73FB2A1B2J CHIP R
R92-0670-05 CHIP R o t!JHM
RK73FB2AI02J CHIP R
R
R
CHIP R
FIXED RESIST(s)R
CHIP R 47K J
R 22K J
CHIP R 4.7K J
CHIP
R
CHIP R 22K J
1. 2K
1. OK
330
o (\)HM
330K J
1. OK
330
1.OK
1. OK
1. 8K
1. 8K
47K J
1.OK
KP
R5B
RK73FB2A563J CHIP
R 56K
111 Oil El
J
TM-441 A: K,M,P
TM-441E: E
17
Page 18

TM-441A/E
*New Parts
Parts wltnout Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Tells ohne Parts No. werden nlcht gellefert.
Ref. No.
• IffU(:-It
R59
R59 R92-0 670-05
R60
R61
R62 RK73F B2A332 J
R63 R92-067 0-05
,65
R64
R66
R67 ,68 R92-0 670-05
-72
R69
R73 RK73F B2A220 J C HIP R
R74 RK73FB2 A152J CHIP R
R75
R77 RK73FB2 A222J CHIP R
R78 RK 7 3FB2A4 72J CHI P R 4.7K J 1110 h'
,80
R79
R81
R82 RK73FB2 A104J
R84 RK73f B2A222 J C HIP R 2 .2K J 111 0h'
R85
R86 RK73F B2AI02 J CHIP R
R88
R90
,93
R92
R94
Address
'fit
N e w
Parts
III
fi
Parts No.
.!l.
~
RK73F B2A222 J CHIP
RK73F B2A334 J
RK73f B2A333 J CHIP
RK73f B2AI03 J C HIP
RK73f B2A562 J
RK73F B2A472 J
RK73F B2A220 J CHIP R
RK73F B2A101 J C HIP R
RK73F B2A222 J
RK73F B2A100 J CHIP R 10 J 111 OW
R92-0 670-05
R92-0 685-05 CHIP R
R92-0 679-05 CHIP R
R92-1 214-05 CHI P
P A R T S L IS T
-ij-
• •
CHIP
CHIP R 330K
CHIP R 3.3K
CHIP R
CHIP R 5.6K J 1 11 Oh'
CHIP
CHIP R
CHIP R 2.2K J
CHIP
CHIP R
TX-RX UNIT (X57-370X-XX)
Description
.!l.
~
R 2.2K
R
R 33K J 111 Oh'
R 1 0K J
R
R
R 120
~/m
o
~HM
o
~HM
o
ISlHM
4.7K J
22 J
1. 5 K
22 J
2.2K J
100
lOOK J 1110 W
1. O K
o
~HM
22 J
o
~HM
~
J 111 Oh' KPM
1 / 1 0 h '
J
1 / 1 0 h '
J
1 / 1 0 h '
1 / 1 0 W
1 / 1 0 h '
111 OW
J
1 / 1 0 h '
1 / 1 0 h '
J 111 0W
1 / 1 0 W
J 111 0h'
1 / 2 W
1 / 2 1 1
J
Desti-
nation
{±
E l
Re-
marks
iaJ'f1j~
R95
R96 -99
RI00
RI01 RK73 FB2A220 J CHIP R 22 J
RI02 RK 73fB2A2 73J CHIP R 27K J
RI03 RK73 FB2AI01 J CHIP R
RI04
RI05 RK73 FB2A273 J CHIP R
RI06 RK73 FB2A473 J CHIP R 47K J
RI07 RK73 FB2A273 J CHIP R 27K J
RI08 RK73 fB2AI03 J CHIP R 10K J
RI09 RK73 FB2AI04 J
RII0 RK 73fB2A1 51J CHIP
R201 RK73 EB2B220 J
R202
R203
R204
R205
R207
R208
R209
R210
R211
R213
R214
R215
R216, 217
R218
R219
R222
R92-1 215-05 CHIP R 470 J
RK73f ;.B2AI 03J
R92-0 670-05
R92-0 670-05
R92-0 685-05 CHIP R
R92-1 259-05
R92-1 262-05 FIXED RESIST ~R
RK73F B2A472 J C HIP R
RK73f B2A103 J
RK73F B2A471 J CHIP R 470 J
RK73f B2A561 J CHIP R 560 J
RK73f B2A563 J CHIP R 56K J
RK73F B2AI03 J
RK73F B2A472 J
RK73F B2A474 J CHIP R 470 K J
R92-0 670-05
RK73F B2A472 J CHIP R
RK'73 FB2A10 5J
R92-0 670-05 CHIP R
RK73F B2A151 J
CHIP
R 1 0K J
CHIP R
CHIP R
CHIP
R lOOK J
R
CHIP
R
FIXED R ESISTI SlR
CHIP R 10K J 111 Oh'
CHIP
R
CHIP
R
CHIP R
CHIP R
CHIP
R
o
~HM
100
o
ISlHM
27K J
150
22 J
22
4.7K J 111 Oil
10K J
4.7K J
o
ISlHM
4.7K J
1. O M
o
~HM
150 J
J
J
J
J
1 / 2 1 1
1 / 1 0 1 1
1 / 1 0 1 1
111 Oil
1 / 1 0 1 1
1 / 1 0 1 1
1 / 1 0 1 1
11101 1
1 / 1 0 1 1
1 / 1 0 1 1
1110W
1 / 8 1 1
1 / 2 1 1
1 / 1 0 1 1
1 / 1 0 1 1
1 / 1 0 1 1
111 Oil
1 / 1 0 1 1
11101 1
111 O il
1 / 1 0 1 1
1 / 1 0 1 1
18
TM-441 A: K.M.P
TM-441E: E
Page 19

TM-441A/E
*New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlcht gellefert.
•
New
Parts
ii
RK73fB2A102J
RK73fB2A4'l3J
RK73fB2A104.J
RK73fB2A4'l4.J
RK73fB2A474.J
R92-0670-05
RK73fB2A473J
RK73FB2A105J
RK73f!32A474.J
RK73FB2A152J CHIP R
R90-0711-05
R05-3441-05
R05-4420-05
Address
No.
Ref.
#l!ftiHJ
R223-225 RK'l3fB2A473J
R226-229
R230
R231,232 RK73f!32A104.J
R233 R92-0670-05
R234.
R235
R236,237 RK73fB2A102J
R238
R239 RK73f!32A473J
R24.0
R24.1
R24.2
R24.3
R244.
R245 RK73fB2A472J CHIP R
R24.6
R247 RK73EB2B180J CHIP R 18 J
VR2 R12-3132-05
VR3 ,4 R12-3126-05
VR5 R12-5058-05
VR201
VR202
f:Ii
PARTS LIST
Parts No.
.Ho
~
-ij-
it
TX-RX UNIT (X57-370X-XX)
Description
.Ho
~
CHIP R
CHIP R
CHIP R
CHIP R lOOK
CHIP R
CHIP
R lOOK J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP
R 470K J
MULTI-C(\]MP
TRIM P(\]T.
TRIM P(\]T.
TRIM P(\]T.
P(\]TENTIroMETER 10K(A)
P(\]TENTI(\]METER50K(B)
:t/1l
4.7K
1. OK
4.7K
o
(\]HM
4.70K
1. OK
4.'lOK
4.7K
o
(\]HM
4.7K
1. OM
1. 5K
4.7K J
47K
10K
lOOK
*&
J
J
J
J
J
J
J
J
J
J
J
1110\0/
1/10101
1110101
1/10101
1/10\0/
1110101
1/10\0/
111 0\0/
1/10\0/
1/10\0/
1110101
1/10101
1/10101
1/10101
1/8101
Desti-
nation
f±
tal .~
Re-
marks
l-
f
I
5201
5202-211
01
-5 155184
D3
lJ6
07 155181 OHJDE
D8 MI407 DI~DE
09
D10
,11 MA716
012
015 MU08
D202
D203 lSS184 DI~DE
0204
D205.206
0207
D208 155184
0209
D210
D211
0212
D213
D214-
0215
0216
0217
IC1
IC2
lC3
rC5
lC6
540-2458-05 PUSH SWITCH
540-1086-05 PUSH SW ITCH
15V128
15V128 DI~lJE
MI308
OSA3A1
02CZ9.i:Y)
lSS181
155184. DI(\]lJE
lS5184.
MA14-1A
MA14-1A
MA14-1A DI(s)DE
155226
LfB01
'*
02CZ3.9(Z)
'*
02CZ3.0(Z)
B30-0852-05
155184
KCD04
UPC124.1H
TC9174f
LA5010M
KCB06
OI(\]DE
DI(\]DE
OI(\]DE
DI(\]DE
OH1DE
DI(\]lJE
DI(\]DE
OI(s)DE
DI(s)DE
Dl(\]DE
OI(s)DE
OI(\]DE
DI~lJE
DI(s)DE
DI~lJE
DI(s)OE
LED (L~W)
DI(s)DE
HIC(FM IF)
lC
lC(CM(\]S
IC(L(\]W5ATURATI(\]N
HIC(DRIVER)
KP
El
MEl
r/t»
REGULAT~R)
I
i..-
l
TM-441 A: K,M,P
TM-441E: E
19
Page 20

TM-441A/E
*New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No.werden nlcht gellefert.
•
New
Parts
fi
*
Parts No.
,fl,
B I!
75ll6Gf-'728- 3BE
NJM78L06UA
3SK184(S)
2SK582 FE!
3SK184(S)
2SC27l2(Y) T RANSISTrllR
2SC2714( Y)
2SD1757K TRANSIST~R
2SBlll9S
DTC144I1K
2SC2759(U23)
DTC124EK
2SB1302S TRANSISTIlJR
2SC27l2(Y)
2SD1757K TRANSIS TIlJR
DTC144EK
Address
No.
Ref.
# P . l { . - i j -
ICB MC7808CT
IC9 KCC02 HIC(EL, VIlJL>
IC20l
IC202
'll
Q2
'l3
Q4
Q5
Q6
Q7 ,8
Q9
-13 2SC2712(Y) TRANSISTI lJR
'lI0
'l14
,16
'l15
Q17 2SDI4 06(Y)
'l18
Q19
Q24
Q25 ,26
{li
P A R T S L IS T
- i j -
•
IC(V~LTAGE REGULAT~RSI
IC(CPU)
IC(VISILTAGE REGULAT~R I +6V)
fET
FET
TRANSISTIlJR
TRANSIST~R
DIGITAL TRANSlST~R
TRANSISTt9R
DIGITAL TRANSISTIlJR
TRANSISTIlJR
TRANSlSTIlJR
DIGITAL TRANSlST t9R
f i l l
TX-RX
PLL UNIT
Description
,fl,
~/1.!'!.
UNIT
(X58-3480-00)
~
+8V)
(X57-370X-XX)
Desti-
nation
i±
Re-
marks
~ fto1f
'l27
Q201-204
Q205 2SD1682(R,S)
Q20b-208 2SC27l2(Y)
Q209,210
Q211
Q2l2
5212
Cl CK 73FBIH223K CHIP C
C2 CC73fUJlH220J CHIP C
C3 CC73F CHIH180J CHIP C l8PF
C4
C5
,7
C6
,9
C8
ClO C92-0002-05
Cll
C12
C13
C14
C15 CK'73 FBlHl02K
,17
Clb
ClOl
2SJI06(GR)
2SA15l9 TRANSIST~R
DTCl14EK DIGITAL TRANSIST~R
DTD143EK DIGITAL TRANSIST~R
FMG2 TRANS IST~R
1102-0388-05 Rt9TARY E NCt9DER
X58-3480-00
X59-3l30-00 MIlJD ULEUNIT(APC)
X59-36l0-00
212-2503-05
PLL UNIT
CK73FBlHl02K CHIP C
CK73EBIH683K
CK73FBIH223K
C92-0007-05
CK'73FBIH223K
CC73fCHlHlOOD CHIP
CK73FBlH223K CHIP
CC73fCHlH040C CHIP C
CC73fSLIHlOlJ
CK73fBIHl02K CHIP C lOOOPf
FET
TRANSIST~R
TRANSISTt9R
SUB UNIT(PLL>
Mt9DULE U~IT (MIC AMP)
PLASTIC T UBE
(X58-3480-00)
0.022Uf
22PF J
CHIP C
CHIP C 0.022UF
CHIP TAN 2.2Uf 20llV
CHIP TAN
CHIP C 0 .022U F
C lOPf
C 0 .022Uf
CHIP C 10 00Pf
CHIP C 10 0Pf
1000PF
0.068UF
O.22UF 3 511V
4Pf C
K
J
K
K
K
K
D
K
K
J
K
ClO2
Cl03
ClO4,105
ClO6,107
ClO8
20
CK73FBlH47lK
CC73FCHl H4 70J CH IP
CC73FCHlH080D
CC73fCHlHR'75 C
CC73fCHlHOR5C
CHIP C 470Pf
CHIP C B Pf
CHIP
CHIP C
C 47PF
C O.75 PF
O.5Pf C
K
J
D
C
TM-441 A: K.M,P
TM-441E: E
Page 21

TM-441A/E
*New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlcht gellefert.
Address
No.
Ref.
~I!ft'--i}
{tr.
C109
CIlO
C111
CIl2 CC73FCH1H040C
New
Parts
III
fi
CC73FCH1H090D CHIP
CC73FCH1H080D CHIP
CC73FCH1HOR5C
PARTS LIST
Parts No.
o!!.
$
.-
~
CHIP
CHIP
C113,114 CK73FB1H102K CHIP
CN1
CN101
CN102
60 2B
L1
L101,102
L103
L104
L105
L106
,2 RK73FB2A473J
RI
R3
R4
R5
R6
E40-5201-05
E40-0411-05 PIN C~NNECT~R(4PIN)
640-0311-05
Fll-1122-14
L40-3972-80 SMALL FIXED INDUCT~R(39n)
L40-8282-19 SMALL FIXED INDUCT~R(0.82u)
L34 -2333 -05
L40-5682-19 SMALL FIXED
L40-3382-19 SMALL FIXED
L40-3972-80 SMALL
RK73FB2A392J CHIP R 3.9K J
RK73FB2A332J CHIP
RK73F82A221J
RK73FB2A222J CHIP
PIN C~NNECT~R(7PIN)
PIN C~NNECT~R(3PIN)
SHIELDING C(l.lVER
CISlIL
CHIP
CHIP
PLL UNIT (X58-3480-00)
APC UNIT (X59-3130-00)
Description
o!!.
$
:t/n!.
~
C 9PF D
C 8PF D
C
0.5PF
C 4PF C
C
1000PF
INDUCT~R(0.56u)
INDUCTISlR(0.33u)
FIXED
R
R
INDUCTISlR(39n)
47K J
3.3K
R 220
R
2.2K
C
K
J
J
J
III 0\/
1/10\/
111 0\/
1/10\/
111 0\/
Desti-
nation
f±
/a)
Re-
marks
.;if
PLU
J
J
J
J
J
1/10\/
1/10\/
1/10'11
1/10'11
1/10\/
1/10'11
1/10\/
1/10\/
111 0\/
1/10\/
1/10\/
1/10'11
1/10'11
1/10\/
1/10'11
R7
,9
R8
-13 RK73FB2A473J CHIP
RIO
RK73FB2A474J CHIP
RK73FB2A822J CHIP R 8.2K J
R14 RK73FB2A331J
R
R
CHIP
R 330 J
470K
47K
R15 RK73F82A472J CHIP R 4.7K J
R16 RK73FB2A222J CHIP
R17
R101
RI02
R103
RI04
R106
!
l
I
l
I
I
I
~
R107 RK73FB2A470J CHIP R
R10S RK73FB2A392J CHIP
R109
R1l0
D101,102
D103
IC1
Q1
-3
Q4
RK73F82AI03J CHIP
R92-0670-05
RK73FB2AI02J CHIP
RK73FB2A822J CHIP R 8.2K J
RK73FB2A470J CHIP R 47 J
RK73FB2A560J CHIP
RK73F82AI03J
RK73FB2A101J
IT33C
lSV164
M54959FP
2SC3324(B)
DTC144EK DIGITAL TRANSISTISlR
R
R
CHIP R
R
R 56 J
R
CHIP R 10K J
CHIP
R
CHIP VARI-CAP DI~DE
DIISlDE
IC(FREQ SYNTHESIZER
TRANSISTISlR
2.2K
10K
o
~HM
1.OK
47 J
3.9K J
100 J
Q5 2SC2714(Y) TRANSlSTISlR
Q101 2SK582
Q102
2SC3120
FET
TRANSlSnR
APC UNIT (X59-3130-00)
Cl
C2
C3
C4 CK73FBIHI02K CHIP C 1000PF
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TM-441 A: K,M,P
TM-441E: E
21
Page 22

TM-441A/E
*New Parts
Parts without Parts No. are not supplied.
Les artloles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle ohne Parts No. werden nlcnt gellefert.
- i j -
Address
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Ref. No.
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R2
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R6
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CK73GB 1 H 1 0 2 K CHIP C 1 0 0 0Pf
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CK73fB I E 3 3 3 K C H IP C O . 0 3 3 U F
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PARTS LIST
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Description
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TM-441 A: K,M,P
TM-441E: E
Page 23

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TM-441A/E
308 PolystyrenePlate
(Hll-0823-04): M,P,E
32 Protectionsheet
(H13-0825-04): M,P,E
P A C K IN G
12 InstructionManual
(862-0033-00): E
10 Warrantycard
(846-0422-00): P
(846-0419-00). E
30A PolystyrenePlate
(Hll-0822-04): K
11
A InstructionManual
(862-0031-00) K
M,P,ETypeOnly )
K
35 Protectionbag
(H25-0720-04)
54 Microphone
33 Protectionbag
(H25-0029-04): K,P
38 MICHOOK
(J20-0319-24): K,P
G TaptiteScrew
(N46-3010-46) x2: K,P
34 Protectionbag
(H25-0117-04)
14 DCPowerCord
(E30-2j11-05)
55 Wrench
(W01-0414-04)
53 ScrewSet
31 PolystyrenePlate
(H13-0814-04)
(N99-0331-05)
Fuse(lOA)
(F05-1031-05)
29 Polystyrenefoamedfixture
(Hl0-2658-02)
(T91-0379-25): M
(T91-0380-35): K,P
(T91-0382-25): E
39 Stackingplate
(J21-4147-14) xz
41 8racket
(J29-0436-03)
<;
24
36 ItemCartonbox
(H52-0059-04): K,P
(H52-0060-04): M
(H52-0061-04): E
Page 25

ADJUSTMENT
TM-441A/E
REQUIRED TEST EQUIPMENT
1. DC V.M and Tester
1) High input impedance
2. RF VTVM (RF V.M)
1) Input impedance: 1MO. min., 2pF max.
2) Voltage range: F.S=1OmV to 300V
3) Frequency range: Up to 450MHz
3. Frequency Counter (f. counter)
1) Input sensitivity: Approx. 50mV
2) Frequency range: Up to 450MHz
4. DC Power Supply
1) Voltage: 1OVto 17V, variable
2) Current 10A min.
5. Power Meter
1) Measurement range: Approx. 60W, 30W
2) Input impedance: 500.
3) Frequency range: 450MHz
6. AFVTVM (AFV.M)
1) Input impedance: 1MO. min.
2) Voltage range: F.S=1mV to 30V
3) Frequency range: 50Hz to 10kHz
7.
AF Generator (AG)
1) Output frequency: 100Hz to 10kHz
2) Output voltage: 0.5mV to 1V
8. Linear Detector
1) Frequency range: 450MHz
9. Spectrum Analyzer
1) Frequency range: 450MHz
10. Directional Coupler
11. Oscilloscope
1) High sensitivity oscilloscope with horizontal input
terminal
12. SSG
1) Frequency range: 450MHz band
2) Modulation: AM and FM MOD.
3) Output level: 0.1uvto 100mV
13. Dummy Load
1) aQ, 5W (approx.)
14. Noise Generator
1) Must generate ignition-like noise containing har-
monics beyond 450MHz.
15. Sweep Generator
1) Sweep range: 450MHz bands
16. Tracking Generator
PREPARATION
1) Unless otherwise specified, knobs and switches
should be set as follows Table 6.
POWER SW
AF VOL VR MIN
SOL VOL VR
VFO
MR OFF DRS OFF
MI
CD
(MIC)
ST@
ON
®
GNO@
Fig. 13 MIC terminals (view from front panel
side)
2) Use an insulated adjusting rod to adjust trimmers and
coils.
3) To prevent damaging SSG, never set the stand by
switch to SEND while adjusting the receiver section.
4) Be sure to turn the power switch OFF, before con-
necting the power cable to a power source.
5) Meter and display section should be set as follows
Fig. 14.
ON CALL OFF
SHIFT/AL OFF
MIN TONE/T. ALT OFF
VFO REV/STEP
Table 6
(j)
®
@8M
@)
ME (MIC
RO
UP
OFF
GNO)
VFO
OMR OMH.
Q
M LOCK ~~~ - -
00
KENWOOO
REV
+
AL CTCSS ~
~~r
8
iJ
sese
~DDDDDDDDDDOOOO
saRF-I-3-5-7-9-0VER LOWMIOT
TM-441 A
AL T. ALT STEP ,
lR~~
~D
Fig. 14
ilil
SQL.40
25
Page 26

TM-441A/E
COMMON SECTION ADJUSTMENT
Item
1. Setting
2. Reset
3. PLL 1) RX VCO
4. Transmit 1) FREO. : 435.000
frequency FREO. : 445.000
adjustment
1) Source voltage: DC 13.8V
1) Turn POWER SW ON while
2)TX VCO
Condition
POWER SW : OFF
VOL VR : Full counter-clock-
SOLVR: CCW
TX-RX unit VR3 : CCW
holding down MR/M.
FREO. : 435.000
FREO. : 445.000
Receive.
FREQ. : 435.000
FREO. : 445.000
Transmit.
wise (CCW)
M.E
K . P
M.E 6.0 - 8.0V
K . P
M.E
K . P
Transmit. meter
ADJUSTMENT
Measurement
Test-
equipment
DVM TX-RX
f.counter Rear ANT TX-RX TC3 435.000MHz M.E ±100Hz
Power panel 445.000MHz
Terminal
Unit
TP3 Check
Unit Parts Method
Adjustment
Specifications/Remarks
Display 430.000
Display 440.000
2.5 - 4.5V
3.0 - 5.0V
Check 5.0 - 7.0V M.E
K . P
M.E
K . P
M.E
K . P
K . P
RECEIVER SECTION ADJUSTMENT
Item Condition
1. Helical 1) FREO. : 435.050
FREQ. : 445.050
Connect the tracking
generator to ANT.(-40dBm))
Connect the spectrum
analyzer to TP 1.
2. GAIN
3. Receiving
sensitivity FREO. : 445.050
4. S-meter
1) FREO. : 435.050
FREO. : 445.050
SSG output: -123 dBm(O.16,uV)
SSG MOD: 1kHz
SSG DEV: 3kHz
1) FREQ. : 435.050 M.E AFV.M Rear SP Check
SSG output: -122dBm (0.18JLV)
SSG MOD: 1kHz
SSG DEV : 3kHz
2) FREQ. : 430.050
FREQ. : 438.050
3) FREO. : 439.950
FREO. : 449.950
1) FREQ. : 435.050
FREO. : 445.050
SSG output: -95dBm(4/LV)
SSG MOD: 1kHz
SSG DEV: 3kHz
2) SSG : OFF Check S-meter off.
M.E Tracking
K . P
M.E
K . P
K . P
M.E
K . P
M.E
K . P
M.E
K . P
Measurement Adjustment
Test-
equipment
generator
Spectrum
analyzer
Unit Terminal Unit
TX-RX
TP1 TX-RX TC1,2 Check whether re-
100pF 01
Parts
L3,5
Method
quired band obtain-
ed at max. gain.
0 --1 ~
N·~
TPl
Distortion Rear SP TX-RX
meter panel
Oscilloscope
SSG
Oscilloscope
SSG
LCD
(S-meter) ments on (Adjust
panel
~l~
o~
gT ~
01,2: lSS99
TX-RX
Oscilloscop or
Spectrum analyzer
L9
VR5
Best SINAD point. Turn L9 core CCW until best
All S-meter seg-
VR5 so that last
segment just turns
on.)
Specifications/Remarks
439 445
430 435
n
SINAD point obtained.
SINAD 12dB or more.
450{K,P)
440{M,E)
26
Page 27

TRANSMITTER SECTION ADJUSTMENT
Item Condition
1-1. APe
1-2. MID
power
1-3. LOW
power
2. DEV.
3. Protection
4-1. TONE 1) FREQ. : 438.200
4-2. TONE
TM-441E
1) FREQ. : 435.000
FREQ. : 445.000
TX-RX unit VR3 : CCW Ammeter
Transmit.
2) FREQ. : 430.000
FREQ. : 438.000
Transmit.
3) FREQ. : 439.975
FREQ.: 449.975
Transmit.
1) FREQ. : 435.000
FREQ. : 445.000
MID SW: ON
Transmit.
1) FREQ. : 435.000
FREQ. : 445.000
LOWSW: ON
Transmit.
1) FREQ. : 435.000
FREQ. : 445.000
AG : 1kHz, 25mV
AG : 1kHz, 50mV
Transmit.
2) AG : 1kHz, 2.5mV
AG : 1kHz, 5.0mV
1) FREQ. : 439.975
FREQ. : 449.975
ANT: OPEN
Transmit.
TONE:ON detector panel
Transmit.
1) FREQ. : 435.000
Transmit.
M,E
K,P
M,E
K,P
M,E
K,P
M,E
K,P
M,E
K,P
M,E
K,P
E
K,M,P
E
K,M,P
M,E
K,P
TM-441A/E
ADJUSTMENT
Measurement Adjustment
Test-
equipment
Power Rear ANT Check
meter panel
Linear Rear ANT
detector panel
Oscilloscope lute value of+or -
Power
meter
Ammeter Check
Linear Rear ANT Check
Oscilloscope
Power
meter
Unit Terminal Unit
TX-RX
TX-RX VR4 12W
TX-RX VR2
Parts
VR3 36W ±3W, lOA or less.
Method
Read RF meter.
Check 33 - 42W
Read RF meter
Check 3.0 - 8.0W
Read RF meter
±4.4kHz
(Read higher abso- Check for detected waveform.
value)
Check
TONE SW of MIC
:ON
Specifications/Remarks
37Wor more.
ON AIR LED on.
All RF meter LEDs on.
lOA or less.
±2W
10 RF meter LEDs on.
6 RF meter LEDs on.
±200Hz
±2.2 - 3.6kHz
lOA or less.
DEV. : ±0.5 - 1.3kHz
DEV. : ±2.5kHz or more.
27
Page 28

-
TM-441A/E
A D JU ST M E N T
t Points ( opAdjustmen
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VR2.
VR3: MID POWER
VR4 . S-meter
VR5: I' I
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28
Page 29

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Page 31

B
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PLL (X58-3480-00)
ICl . M54959FP 01-3: 2SC3324(B) 04: DTC144EK 05: 2SC2714(Y)
PLL (X58-3480-00)
(A/2)
(A/2)
Component side view
Foil side view
DTC144EK
2SC2714(Y)
2SC3120
2SC3324(B)
2SAl162(Y)
2SC4116(Y)
NJM4558M
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Page 32

B
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APC (X59-3130-00)
APC(X59-3130-00)
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32
Page 33

A
T
M -441
TX-RX UNIT (X57-370X-XX) Component side view
0-11: TM-441 A (K,P) 0-21: TM-441A (M) 2-71: TM-441 E
2
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c
BOARD VIEWS
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LA5010M
NJM4558M
Page 34

A
TX-RX UNIT (X57-370X-XX) Foilsideview
0-11: TM-441A (K,P) 0-21: TM-441A (M) 2-71: TM-441E (E)
c
E
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GNO
NJM78L05UA
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Page 35

B
o
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(X58-3480-00)
IC I : M54959FP
(A/2)
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Page 36

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Page 37

L
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Page 38

p
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Page 39

L
I
TM-441A/E
I
Con- Ter- Ter-
nector minal minal
No. No. Name
TX-RX UNIT (X57-370x-XX) (A/2)
CN1 1 E
2
CN2 1
CN3
~
r
r
I
BEEP
2 E
3
4 VO
VOA
5
1
2 NC
ES1
3
4 NC
EP1
5
6
7 DT
DET
B
9 RD
10 SC
11
12 SM
13 E
CN4
1 E
2 B
PSW
3
4 SB
5 BC
6 BZ
7 A2
B
9 AE
10 TO
11 ME
12 MIC
13 E GND.
GND.
Speaker input.
SP
GND.
Voice memory input.
VI
Voice memory output
Power supply for voice memory.
GND.
E
Shift register (lC5) enable.
PLL enable.
CK PLL clock.
PLL data.
CTCSS DET output.
Audio output.
Squelch busy control output.
Squelch output.
SO
S-meter output.
GND.
GND.
+13.8V.
Power switch control input.
Switched B
Common +BV.
Beep input (To AF IC from CPU).
Audio input
(To electronic volume from AF VOL).
Audio output (To AF VOL).
A1
GND.
Tone input.
MICGND.
Mic input (To MIC AMP unit).
TX-RX UNIT (X57-370X-XX) (8/2)
CN201 1 E GND.
2 NC
ES1
3
4
EP1
5
6
7
DET
B
9 RD
10
11 SO
12 SM
13 E GND.
Shift register enable
(From CPU IC201)
NC
PLL enable (From CPU IC201).
PLL clock (From CPU IC201).
CK
PLL data (From CPU IC201).
DT
Audio input (CPU IC201)
Squelch busy control input
SC
(To CPU IC201).
Squelch input (To CPU IC201).
S-meter input (To CPU IC201).
TERMINAL FUNCTIONS
Con- Ter- Ter-
Terminal Function
nector minal minal
No. No. Name
CN202 1
2 B +13.BV.
3
4 SB Switched B
5 BC Common+BV
6 BZ Beep output (From CPU).
7 A2 Audio input
B
9 AE GND.
10
11
12 MIC
13
CN203 1
2 DT
3 VCK
4 GND GND.
5
6 01 DRS unit data.
7
B 04 DRS unit data.
CN204
1
2 C5 Common+5V.
3 DV
4 VOB
5 VOA
6 RD
7 WR
B ACL
9 STBY
10 OE
CN205 1 DT
2
3 CE
4
5
6 FC
7 NC
B
9 LAMP
W201 1 GND GND.
2
3 C5
4 DET
5
6 CTO
7 CTS
Terminal Function
E GND.
PSW Power switch control output (From CPU).
(To electronic volume from AF VOL).
A1 Audio input (To AF VOL).
Tone output (From IC246).
TO
ME MICGND.
Mic output (From mic jack).
GND.
E
PLL IC clock output (From CPU P21).
CK
PLL IC data output (From CPU P22).
DB DRS unit data.
DRS unit data.
02
DST
DRS unit VOB output.
DRS unit VOA output.
DRS unit RD output.
DRS unit WR output.
DRS unit RESET output.
DRS unit STBY output.
LCD driver data output.
LCD driver clock output.
CK
LCD driver enable output.
C5 Common +5V
E GND.
Function control
F-LAMP Function Lamp B
Lamp B
RD CTCSS unit voice de-modulation input.
Common+5V.
CTCSS unit tone matching input.
CTCSS unit clock output.
CTC
CTCSS unit data output.
CTCSS unit enable output.
39
Page 40

TM-441A/E
BLOCK 01
1
MIC
o
I M B
11205
ise
2SD 1682
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11206
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4
Page 41

TM-441A/E
K DIAGRAM
-------------------------------------------------------------------------------~~~--~~~---------------------------------,
12.
HH,
HCI
30.825"H:r
LPf
430-439.995MHz
438 --449.995MHz
430.0-
449.995MHz(E,M)
AHP
438.0-
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AMP AMP
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Page 42

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_ I
O.63V
AF
0.0022Vrms
sn
R
O.0065Vrms
I "
.,
1455kHz
...•
with the front panel AF VOl control. Measuredwith AF
40dBEMFSSGsignalmodulatedat1kHz,DEV3kHz.
AFlevelobtainedwhentheAFoutputlevelisadjustedfor 0.63V/
sn
voltmeterconnectedto the externalspeakerjack, receiving a
AFVTVM
s
~
C')
3:
.J
I
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-4
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--f(J--
Wattmeter(terminated by 50Q)
L
pointviaa O.OlI'Fcapacitor.
SGinputlevelfor which a 20dBNQ(upper)and12dBSINAD
1.2Vrms(High-frequencyVTVM)
(lower)are obtained. Measuredbyconnectingthe SGto each
n
High-frequencyVTVM
r
TX-RXUNIT • - MODULE~UNIT-'
19dBI'EMF
17dBI'EMF
AFVTVM
J
~== ~
O.66Vrms 0.14Vrms 0.5Vrms
v: Er V
{~_ ;l
(X59-3610-00) (X58-3480-00)
M" >CC ~
----------------435.06MHz ~.. 30.825MHz
~
N
Receiver section
-I-
UNIT
-7dBI' EMF
-9dBI' EMF
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ANT
Transmitter section
1.AG issetsothatMICinputbecomes3kHzDEVat 1kHzMOD.
2.Transmittingfrequency: 435.06MHz
Page 43

TM-441A/E
DRU-1 (DIGITAL RECORDING UNIT)
DRU-1 CIRCUIT DESCRIPTION
1. Overview
The DRU-l is a digital recording and playback
unit designed to be installed inside the TM-441 AlE
series.
• Recording received audio (for output to the internal
speaker) or transmit audio (microphone input)
• Outputting recorded audio to the internal speaker or
outputting recorded audio as modulating signals
during transmission
• Bui!t-in lithium battery back-up for maintaining DRU-
1 contents
2. Operations
• Recording received audio (for output to the
internal speaker)
A received signal from the VO pin is fed into pin 1(OY)
of the multiplexer ICl (TC4052BF). It is then fed into pin
59 (MIC IN) of IC3 (TC8830F) via pin 3 (Y).The signal is
amplified approx. 26dB by a mic amplifier in IC3, and
output via pin 60 (Cl). The signal from pin 60 is fed into
pin 63 (C2) and amplified approx. 20dB. The amplified
signal is applied to pin 64 (MIC OUT) and pin 65 (ADI).
• Recording transmit audio (microphone input)
Microphone input from the VI pin is amplified by 05,
and fed into pin 2 (2Y)of the multiplexer ICl (TC4052BF).
It is then supplied to IC3 (TC8830F) via pin 3 (Y) and
recorded in the same way as in recording received
sound.
• Outputting recorded audio to the internal
speaker
D/A convertor output from pin 66 (DAOI of IC3
(TC8830F) ispassed through aCRfilter, and amplified by
06. The amplified signal is then fed into pin 'j 3 (X)ot the
multiplexer ICl (TC4052BF), and output to the VO pin via
pin 14 (lX).
• Outputting recorded audio as modulating
signals during transmission
When sound recorded in the DRU-l is played during
transmission, the same operations as written above in
outputting recorded audio to the internal speaker occur.
That is, D/A convertor output from pin 66 (DAO) of IC3
(TC8830F) is passed through a CRfilter, amplified by 06,
and fed into pin 13 (X)ofthe multiplexer ICl (TC4052BF).
The sound, however, is output via pin 11 (3X).
Output to speaker
Output during transmission
Received audio recording
Transmit aidop recording
VOA YOB
(pin 10) (pin 9)
H
H H
L
L
L
L
H
On channel
lX (pin 14)
3X (pin 11)
OY(pin 1)
2Y (pin 2)
Table 1 IC1: TC4052BF operations
DRU-1 DESCRIPTION OF COMPONENTS
ACCESSORY UNIT (X42-3010-00)
Component
ICl
IC3
IC4-7
,
05
06
Dl
D2 Reverse current prevention
Use/Function Description
Multiplexer
Audio recording and playback
S-RAM
AF amplification
AF amplification
Reverse current prevention
See DRU-l circuit description.
See DRU-l semiconductor data.
Mic input amplification.
Playback sound amplification.
Back-up.
43
Page 44

TM-441A/E
DRU-1 SEMICONDUCTOR DATA
1. Audio recording and playback: TC8830F (lC3)
DRU-1 (DIGITAL RECORDING UNIT)
• Terminal connection diagram
EOS
ACI :
csuM
Vr.!
MICIN
Cl
VDD
VSS2
C2
MICOUT
ADI
DAO
FIL IN
5~t;; 8~t3 ~~~
~ ~ >
u,
(!)~~
aS C i
8~~ ~~~.
Al
A2
A3
A4
A5
VDD
A6
A7
I>JJ
A9
Al0
• Block diagram
R/W
ALE
c r -
eEl -eN
VDD VSSl
VSS2
AD-A14
EOS
ACe
STBY
PHO-PH3
DO-07
PO
-P3
,....------<1 MICIN
,....-----------QADI
CPUMXINXOUT
256K
Mic amp
MICOUT
DAO
• Terminal functions
Pin No. Pin name
1 FIL OUT
2 NC
3 TEST
4 D7
5 NC
6 D6
7 NC
8 D5
9 NC
10 D4
11,12
13-16
17-19 A14-A12
21-26 A11-A6
28-33
35-38 CE1-CE4
D3-DO
20 VSSl
27 VDD
A5-AO
34 CE
39
40 XIN I
STBY I Minimum current standby when standby
NC
1/0
0
-
-
I/O RAM data I/O. 43
-
I/O
-
I/O
-
I/O
-
I/O
0
-
0
-
0
-
0
Function
Not used. 41 XOUT
Not connected. 42
Not used. "H" when 256K used.
Not connected.
RAM data I/O. 45 WR I Write pulse input.
Not connected. 46 RD
RAM data I/O. 47-50 PH3-PHO
Not connected. 51-54 P3-PO
RAM data I/O. 55 EOS
Not connected. 56 ACL I
RAM data I/O. 57 CPUM I "H" when CPU control enabled.
RAM address output. 58 Vref
GND. 59
RAM address output.
Power supply. 61 VDD
RAM address output.
Not used.
RAM chip enable.
input is "H".
512kHz oscillation circuit. 67
Pin No. Pin name
256K I
RNIJ
44
60
62 VSS2
63
64 MIC OUT
65
66
ALE
MICIN
C1
C2
ADI
DAO
FIL IN I Not used.
1/0
512kHz oscillation circuit.
0
64K/256K RAM select,
RAM read/write output.
0
-
Not used.
Read pulse input.
I
-
Not used.
Data bus.
I/O
Not used.
-
Reset signal input.
Analog circuit reference voltage output.
0
Mic amp. 1 input.
I
Mic amp. 1 output.
0
-
Power supply.
GND.
-
Mic amp. 2 input.
I
0
Mic amp. 2 output.
Audio analysis circuit input.
I
D/A convertor output.
0
Function
44
Page 45

DRU-1 (DIGITAL RECORDING UNIT)
2. DTMF DECODER: LR4102N (lC2)
• Pin connection
01
TM-441A/E
0
24
02
HIS
EN
GNOo
NC
IN1633
Voo
NC
Sl
S2
NC
ANALOG IN
2
3
4
5
6
7
8
9
10
11
12
(TopView)
04
23
08
22
CLOV
21
OV
ATS
19
XEN
18
NC
17
NC
16
OSC IN
15
14 OSC OUT
GNOA
13
• Pin description
Pin No.
1
2
3
4 GND
5
6
7
8
9
10
11
12
Name 1/0 Function Pin No. Name 1/0 Function
Dl
HIB I 16 digit cord setting 14 OSC
EN
NC
IN1633 I
V
NC
Sl
S2
NC
ANALOG IN
DTMF data output 13 GNDA
0
I Output enable 15 OSC
Digital GND (GND) 16 NC
-
D
-
NC 17
Valid 1633 Hz (GND) 18 XEN I
-
DD
Power supply
-
NC
Bypass (Connected to ground by a
-
0.01 ~F capacitor.)
Bypass (Connected to ground by a
-
0.01 ~F capacitor.)
NC 23
-
I DTMF signal input
19 ATB
20 DV
21 CLDV I Data varied clear
22
24 D2
OUT
NC
D8
D4
-
Analog GND
X-tal output
0
X-tal input
'N
I
-
NC
-
NC
X-tal enable
NC
0
Data varied
0
DTMF data output
0
DTMF data output
0
DTMF data output
0
45
Page 46

TM-441A/E
DRU -1 (D IG ITAL R EC O R D ING UN IT)
*
New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle onns Parts No. werden nlcnt gellefert.
DRU-1 PARTS LIST
Ref. No.
f J l l I I l t - i t
-
.•.
-
...
_ .
-
C l
C 2 C K 7 3 F 8 1 H 1 0 2 K
C 3 C K 7 3 F F 1 E 1 5 4 Z
C 4 - 6 CK 7 3 F B 1 H 1 0 3 K C H I P
C 7 C K 7 3 E F 1 C 1 0 5 Z C H I P C 1. 0 U F Z
- 1 0
C B
C 1 1 C K 7 3 F F 1 E 1 0 4 Z C H I P
C 1 . 2
C 1 3
C 1 5
C 1 6
C 1 7
C 1 9
C 2 0
C 2 1
C 2 3 C K 7 3 F B 1 H 1 0 3 K C H I P
C 2 4
C 2 5
C 2 6
C 2 7
C 2 8
C N 1
C N 2
e N 3
W 1
W 2
Address
1 : I ' c .
, 1 4
. 2 2 C C 7 3 F S L l H 1 0 1 J
N e w
Parts
fI
fi
Parts No.
la
-it
•
8 4 2 - 3 3 1 7 - 0 4
8 5 0 - ' 8 2 9 0 · - 0 0 I N S T R U C T I I S l N
G 1 0 - 0 6 6 6 ' - 0 4 N I S l N - · W f i l V E N
G 1 0 - 0 6 7 9 ' - 0 4
G 1 3 - 0 9 1 3 " ' 0 4
H O 1 ' - 8 2 4 9 - 0 3
H 0 3 - · 2 7 7 2 · · · 0 4 I S I U T E R P A C K I N G
H 2 1 - 0 7 0 4 " ' 0 4
H 2 5 " 0 0 2 9 " 0 4
H 2 5 - 0 7 1 0 - 0 4 P R f S l T E C T I f S l N
N 8 7 - ' 2 6 0 6 - - 4 6 BRA Z I E R
X 4 2 - ' 3 0 1 O - 0 0
C K 7 3 F B 1 H 1 0 3 K C H I P
C K 7 3 F B 1 H 1 0 3 K
C K 7 3 F B 1 H I 0 3 K C H I P C 0 . 0 1 0 U F K
C K 7 3 F 8 1 H 1 0 2 K
C K 7 3 F F I E I 0 4 Z
C K 7 3 F B 1 H 1 0 3 K C H I P
C K 7 3 F F I E I 0 4 Z
C K 7 3 F B 1 H 1 0 3 K C H I P
C K 7 3 F B 1 H I 0 2 K
C 9 2 ' - O O 1 0 · · · 0 5 CH I P T A N
C I 0 3 E 8 1 H 1 0 4 K C H I P
C K 7 3 F B 1 H 1 0 3 K CH I P C 0 . 0 1 0 U F K
C C 7 3 F S l l H 1 0 1 J C H I P C 1 0 0 P F J
C K 7 3 F F 1 E 1 0 4 Z
E 4 0 - 5 2 0 7 " ' 0 5
E 4 0 - 5 2 0 6 - 0 5 P I N C I S I N N E C T f i l R
E 4 0 - 5 1 8 1 ' - 0 5
E 3 1 - 6 0 0 5 - ' 0 5
E 3 1 · · · 6 0 0 6 · · · 0 5 C I S I N N E C T I N G WI R E
It
DRU-1
L A B E L
N f S l N - W f S l V E N
F f S l R M E D
I T E M C A R T I S l N
P R I S I T E C T If S l N
P R I S I T E C T I I S l N
A C C E S S f S l R Y
ACCESSORY UNIT (X42-3010-00)
C H I P C
C H I P
C H I P C
C H I P
C H I P
C H I P
C H I P
C H I P
C H I P
P I N
C f i l N N E C T I S l R
P I N Cfi l N N E C T I S I R
C I S I N N E C T I N G WI R E
Description
la
•
P L A T E
1-
C O . 1 5 U F
1-
C
C
C O. 1 0 U F Z
r-
C
1-
C
C
1-
r
C O . 1 0 U F Z
~/~
M A N U A L
F A B R I C
F A B R I C
B f S l X
C A S E
S H E E T
B A G
B A G
T A P T I T E
H E A D
U N I T
0 . 0 1 0 U F
1 0 0 0 P F K
0 . 0 1 0 U F K
0 . 0 1 0 U F K
O . 1 0 U F
1 0 0 0 P F
0 . 0 1 0 U F K
O . 1 0 U F
0 . 0 1 0 U F K
1 0 0 0 P F K
1 0 0 P F
0 . 0 1 0 U F K
6 . 8 U F 6. 3 W V
O . 1 0 U F K
~
S C R E W
Desti-
nation
if
I(
Z
Z
K
Z
J
Re-
marks
(t;J.~
W 3
X l
X 2
R I
R 2
R J
f M
R~j
E: Scandinavia&Europe K: USA P: Canada W:E urope
46
U: PX (Far East Hawaii) T: E ngland M: O ther Areas
UE : AAFES(Europe) X: A ustralia
E 3 1 · · 6 0 0 7 - 0 5 Cf i l N N E C T I N G W I R E
F 2 0 - 0 5 2 0 · · - o 4 IN S U L A T I N G
F 2 0 - 0 5 2 1 - 0 4
L 7 7 · · 1 3 9 8 · · 0 5 CR Y S T A L R E S f i l N A T I S I R
L 7 8 - ' 0 0 5 0 - ' 0 5
f ~ n 3 F B 2 A I 0 3 J
H K 7 3 F B 2 A 3 9 2 J
R K 7 3 F B 2 A 1 0 3 J
f ~ K 7 3 F 8 2 A 1 0 5 J
f ~ n 3 F B 2 A 1 0 2 J
I N S U L A T I N G
R E S I S I N A T I S I R 51 2 K H Z
C H I P R
C H I P R 3. 9 K J
C H I P R
C H I P R
C H I P R
B I S I A R D
B I S I A R D
1 0 1 (
1 0 K J
1 . f. l M
1 . OK J
3 . 5 7 % 4 5 M H Z
1 / 1 0 W
J
1/10W
1/10W
1 1 l O W
J
1/10W
Lt.
indicates safety critical components.
Page 47

DRU-1 (DIGITAL RECORDING UNIT)
*New Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sont pas fournls.
Telle orme Parts No. werden nlcht gellefert.
TM-441A/E
Ref. No.
••• -it
Address
-fit
R6 R92-0670-05
R7
R8
R9
R10 R92-0670-05
•
New
Parts
Ii
Parts No.
.Ho
fII!
•
-it
RK73FB2A223J
RK73FB2A102J CHIP R
RK73FB2A105J
CHIP R
CHIP R
CHIP R
CHIP R
R11 RK73FB2A223J CHIP R
R12 R92-0670-'05
R13 RK73FB2A222J
CHIP R
CHIP R
R14 RK73FB2A472J CHIP R
R15 RK73FB2A104J CHIP R
R16
R17
RK73FB2A105J CHIP R
RK73FB2A103J CHIP R 10K J
R1B RK73FB2A105J CHIP R
R19
R2D RI<:73FB2A104J
R21 RI<:73FB2A103J
R·Y'
~c;.
R23
R24
RK73FB2A562J
RK73FB2A102J
RI<:73FB2A564J
RI<:73FB2A273J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R 271<:
R25 RK73FB2A683J CHIP R
R26 RK73FB2A105J CHIP R
R27
R28
R29 -31 R92-0670-D5
R32 RK73FB2A220J
RK73FB2A222J CHIP R 2.2K
RK73FB2A224J
CHIP R 220K
CHIP R
CHIP R
Description
.Ho
fII!
~/m
o
8HM
22K J
1.OK
1.OM
o
ISIHM
22K J 11lOW
o
ISIHM
2.2K
4.7K J
lOOK J 1I10W
1.OM
1.OM
5.6K J
lOOK J 1I10W
10K J 11lOW
1.OK
560K J 1I10W
681<:
1.OM
o
8HM
22
~ f±
1/10W
J
1/10W
J
1/10W
J 1I10W
1/10W
J
1/10W
1/10W
J
1/1DW
1/10W
J
1/10W
J
1/10W
J 1I10W
1/10W
J
1I10W
J
j
1/10W
1/10W
J
Desti-
nation
Re-
marks
1a:J1I:'iIf
R33 RK73FB2A394J CHIP R 390K
,2
D1
1SS184
DI8DE
IC1 TC4052BF IC(4CH MPX/DE-MPXl
IC2 LR4102N IC
IC3 TC8830F
IC4 -7 HM62256LFP-15T
···3 2SC2712(BLl
01
Q4
G15
,6
DTC144EK
2SC2712 (BLl
IC
IC
TRANSI STISIR
DIGITAL TRANSISTISIR
TRANSISTISIR
W09-0326···05 LITHIUM BATTERY
J 1I10W
E:Scandinavia&Europe K: USA P: Canada W:Europe
47
,
-"-
U: PX(FarEast.Hawaii) T: England M: OtherAreas
UE : AAFES(Europe) X: Australia
Lt
indicates. safety critical components.
Page 48

A
C
E
TM-441A/E
DRU-1
DRU-1 PC BOARD VIEWS
ACCESSORY UNIT (X42-3010-00) Component side view
2
(DIGITAL R E C ORDING
UNIT)
IC1 : TC4052BF IC2: LR4102N IC3: TC8830F IC4-7: HM62256LFP-15T Q5,6: 25C2712(BL) D1,2: 155184
4
ACCESSORY UNIT (X42-3010-00) Foil side view
DTC144EK
2SC2712(BL)
48
HM62256LFP-15T
15
28
TC4052BF
14
LR4102N TC8830F
.,
Page 49
Page 50

'T1
-
·
-
~
·
-
·
-
~
J
~'"~
."
GNO
....
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XIor
no
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l:t ;:
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o
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en
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0 0 0
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o
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o
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< "
0
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<
....
o
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&>
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c.
OT
I
I
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e
I
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G
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-
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(11
~.
2~
A8
AI3
A8 A6
AI3 A7
A6ASA4
A7
23
22
24
Aq
All
A5
A4
7
6
Aq
All
27
28
26
WE
AI4 VCC
AI2
28 28~
27 27
n
~
WE
VCC
AI2
AI4
21
A2 AIO
A3 liE
8
OE
AIO
A3A2AI
,q
20
q
17
CE
107 18
AO 108
11
10
C E AI
108
,01
101 AO
11.
104 - 15
105- 16
106.
101
103
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,02
12.
• "I
I~
17
16
106.
105.
107
104
103
,02
12.
"IGNO
91 •
,----------1
AI4 VCC
27 '27
(")
Ol
AI4 VCC~28
( •..• 1
24
23
Aq
A8 • 2~
AI3
2~
A8 •
AI3
A 6
~A7
rLt---=-I
All·
24
23
Aq
AII·
A5
~A4
lYE
AI2A7A6A~A4A3A2AIAO
~
lYE
AI2
21
ca!!
I
1
1iE1"
~A3
Iq
CE~
108
Ale.
10
I
CE1-- I
108
A2 AIO
~ AI
101 AO
8
16
18
106 - 17
10~
107.
~
103
102
101
11.
12.
106. 17
107
0 104
103 105
GN
101
11.
~'02
9+--.-------'-"-1
?
..
...•
H
n
I
:1J'"
n
:!
1> .•••
!I: I>
I
I
I
I
I
I
I
I
I
I
L
0>
I
~
U1
o
Page 51

DTU-2 EXTERNAL VIEW
TM-441A/E
DTU-2 (DTMF UNIT)
DTU-2 PARTS LIST
,------------
Re 5 No.
Cl
C2
C3.4
C5-8,10
C13-16
C9
Cl0
Cll
Xl
Rl-14
01
02,3
ICl
!
~
IC2
IC3
New
Parts
Parts No. Description
CK73FB1El04K Chip C 0.1
CC73GCHl Hl 000
CC73GCHl H330J
CK73GB1El03K
CK73GL 1El 03K
CK73GBl E822K
CK73GBl E322K Chip C 0.0033
CC73GSL 1Hl 01J
E37-0033-05
E40-5188-05
L78-0061-05
RK73GBl JxxxJ
DTCl14EU
2SC4116 (Y)
TP5088WM
LC7385M IC
BU4066BF IC
Chip C 10 pF 0
Chip C 33 pF J
Chip C 0.01
Chip C 0.01
Chip C 0.0082
Chip C 100 pF
Connecting cable (6P)
Pin ass'v socket (11 P)
CERAMIC RESONATOR
(358 MHz)
Chip R
Digial transistor
Digital transistor
IC
flF
flF
flF
flF
flF
K
K
K
K
K
J
51
Page 52

TM-441A/E
DTU-2 PC BOARD .
Compone
nt side view
DTU-2 (DTMF UNIT)
Foilside view
SCHEMATIC DIAG_RAM
I
1
,
1
1
1
,
1
,
1
,
1
1
1
i
=I 1
E
E
M I C I N
R 0
T ON E
M ON I T O R
;;
52
i :l 4 l :: :
1
1 _
Page 53

MC-44 (MULTI FUNCTION MICROPHONE)
MC-44 SCHEMATIC DIAGRAM
r------l
S7 OWN S8 UP
-1- ....L...
I
I
I
I
I
L
o
1
2
3
4
o
5
.J
SW2.
LOCK
TM-441A/E
(SHIELD)
( BLACK)
1
o
PTT
SW1 PH
(RED)
(BLUE)
(GREEN)
I
I
I
I
I
I
CALL
:;
S3
....L...
VFO
S4
-1-
MR
S5
-1-
PF
S6
....L...
~
<no
0::0
r-
I
+
~-e-<r-~~I~~~-'~~
Vii'.11
a:>~
1~~2
L_
-
ECM '
C
.033
R2
R3
180
1
2.2K
MC-44 PARTS LIST
Ref. No.
New
parts
Parts No.
A02-0S96-0S
A02-0900-0S
B50-S293-0S
E30-2149-0S Curl cord
K29-3165-0S
K29-316S-0S Knob
K29-3169-0S
K29-3170-0S Knob CALL, VFO, MR, PF
Case (Front)
Case (Rear)
Instruction manual
Knob PTI
Knob
Description
UP
DOWN
SW2 S31-1422-0S
SW1
57,S S59-1409-0S Switch UP, DOWN
S50-1431-0S Micro switch PTI
T91-03S3-0S Microphone element (Condenser microphone)
Slide switch
LOCK
53
Page 54

TM-441A/E
MC-44DM/MC-44DME
(MULTI FUNCTION MICROPHONE WITH AUTOPATCH)
MC-44DM/MC-44DME SCHEMATIC DIAGRAM
----
r
I
I
I
L
--
--
r
CALL
I
- 0 - 1 -
c o :.:
Ci ~
I
I
J
I
I
I
I
I
L
I
r - a - ? r O - ? - o - ? r09
4 5
r - <>?
7
~?
~L ?
---------
KEYBOARDPCB
----
OWN
... L .
i
--
S7
?
--
UP
-L..
YSB
----
VFO L;R L;F
- 1 -
H>?
~
~?
-L.. ~
If)~
1i:!2 1i:N 1i:!2
<O~ •••• ~
2
~9
8
~?
0
!..L..
~?
----
----
3
6 B
~?
9
~ - ?
~?
CN3
1
0
2
3
4
5
0
CN2
9
10
A
CNl
I
C
0
2
3
4
5
6
7
B
SW2
LOCK
-
t;;:::;
~
-----<
0
SWl
20
~
r-'
I-~"-~
I
I ~~~
I
I
I (BLUE)
I
L •...._
~~OI~
ICl
15
14 9
13 17
12 I
10 2
6 ~ 11
co
5 ~ 161
a:
4
... J
lB
3
i
~:Ii
Q~~3
(REm
(GREEN) UP
'u-~"'u ~ '
r-I- ~
c o
(BROWN)
+
HX~r
B)-
R7
47K
J
J.
-
v
:;;U~
If)-"~
0
U~I
a:
7~
(BLACK)
I
PTTI
I
DWN
.~
VRl
3.3K
C2 C6
••
I
..J
4.7K
R4 +;'1
0.047 50V
•••+
I
o.~LiJ
+
,,:~~T~ I
' RI
47K
(SHIELD)
{, (WHITE)
\.1__-,
4.;~5V
,), ;
R9
lBOK
2.2K
ECM
-1
_.J
I
I
-..
t
-'
<0
~
a:
W •....•
01
,
,
Rll
6BOK ~~
.0... 1
R2
.~~
;:J7K :.:
-
"'
.., a: v
G~.~
'l'J
,,~ !2
~~
• ...
fr'
:.:
~~
02
03
MC-44DM/MC-44DME PARTS LIST
Ref. No.
SW2
SW1 S50-1431-08 Micro switch PTT
S7,8 S59- 1409-08 Switch UP, DOWN
New
parts
Parts No. Description
A02-0898-08
A20-0899-08
A02-0901-08
850-8293-08
E30-2149-08
K29-3165-08 Knob PTT
K29-3167-08
K29-3168-08 Knob UP
K29-3169-08
S31-1422-08
T91-0383-08 Microphone element (Condenser microphone)
Case (Front)
Case (Front) DTMF (With TONE)
Case (Rear)
Instruction manual
Curl cord
Key top DTMF
Knob DOWN
Slide switch LOCK
DTMF
DTMF
M
W
54
Page 55

MC-44E (MULTI FUNCTION MICROPHONE)
MC-44E SCHEMATIC DIAGRAM
TM-441A/E
(BLACK)
,--
OWN UP
....•... ....a...
I
I
S7 580-+<>+=:"'--,
I
I
L__
TONE
~
S3
J2 J3n- --.
CNI
0
o 5
I
2
3
4
SW2
LOCK
-
I(BLUE)
I(GREEN)
L_
:.:
0
Q
(SHIELD)
---------,
I
I
I
SWI
-
-
ID
+
Z
a.
~
~
0
a::
ID
(RED)
R3
180
PTT
55
MC-44E PARTS LIST
Ref. No.
SW2 S31-1422-08 Slide switch
SW1 S50-1431-08 Micro switch
S7,8
New
parts
Parts No.
A02-0897-08 Case (Front)
A02-0900-08
B50-8293-08 Instruction manual
E30-2149-08
K29-3165-08
K29-3168-08 Knob
K29-3169-08 Knob DOWN
K29-3170-08
S59-1409-08
T91-0383-08
Case (Rear)
Curl cord
Knob PTI
Knob 1750, VFO, MR, PF
Switch UP, DOWN
Microphone element (Condenser microphone)
Description
With TONE
UP
LOCK
PTI
Page 56

TM-441A/E
--------------------------------~
TSU-6 (CTCSS UNIT)
TSU-6 EXTERNAL VIEW
TSU-6 PARTS LIST
Raf. No.
Cl
C2
C3
C4,5 CK73EBl El04K
C6
C7
Ca,9
Cl0
Cll
C12
C13
Xl
Rl-l0
R12-14
VRl
01
02
03
ICl
IC2
N_
Parts
Parts No. Description
CTCSSUNIT (X52·3100·00)
CK73FB1Hl02K
C92-0010-05 Tantal 6.a",F 6.3WV
C92-0006-05 Tantal 3.3",F 4.0WV
CK73EBl H223K Chip C 0.022",F K
CK73EBl El04K Chip C
CC73FCH 1H150J Chip C 15pF
CK73FBl Hl02K Chip C 1000pF
CK73EB1El04K
C92-0507-05 Chip tan.
C92-0510-05 Chip tan.
E40-5121-05
L77-1313-05
RK73FB2AoooJ Ch io resistor
RK73FB2AoooJ Chip resistor
R12-3460-05
DTC144TK
DTAl14EK
2SC27 i2jGR) Chip transistor
MN6520
MN4094BS
TSU-6 FINE ADJUSTMENT OF TONE FREQUENCY
The tone frequency can be fine adjusted with an interval
of 0.5% step over the range of 0 to +1.5%. Ground the Tl
(pin 10) and T2 (pin 9) of ICl to obtain the desired fre-
quency.
---------
0%
+0.5%
+1.0%
+1.5%
56
o :
Table 3
Chip C 1000pF
Chip C
Chip C
Pin connector (lOP)
X'tal resonator 4.194304MHz
Trimming pot. 33kO
Digital transistor
Digital transistor
IC
IC
Tl
X
0
X
0
GND. X : OPEN
O.l",F K
O.l",F
O.l",F K
4.7",F
3.3",F
T2
X
X
0
0
•. New Parts
K
K
J
K
6.3WV
4.0WV
TSU-6 REFERENCE DATA
TH·25's condition and MN4094BS (IC2) relationship
CTCSS TONE
switch
OFF
ON See table 2
01 - 4. 7.8 : Tone frequency setting
05: TX/RX switch for MN6520 ncn.
06: Power switch for MN6520 (ICl).
Tone frequency and MN6520 (lC1) relationship
Tone
frequency
(Hz)
67,0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
100.0 H
103.5 H
107.2 H
110.9 H
114.8 H
118.8
123.0 H
127.3 H
131.8 H
136.5
141.3
146.2 H
151.4
156.7
162.2
167.9 H
173.8
179.9
186.2
192.8
203.5
210.7 H
218.1
225.7 H
233.6
241.8
250.3
TX/RX MN4094BS terminal
switch as Q6
OFF
ON
OFF
ON
TX L H
RX L H
LTX L
RX
TX L L
RX H
TX
RX H
L H
L L
Table 1
MN6520 terminal
55 54
56
MN4094B5 terminal
01
02 03
L
H
H H H
L
H H
L
H
L
H H
L
H H
L
L
H
L H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H L
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L H
L H
L
L
L
L
L
L L
L L
H
H
H H
H
H
H
L L
H
L
L
H
L L
H
H H
H
L
L
Table 2
L
L
"H":
"H":
OFF.
H
H
L
L
L
L
L
L
L
L L
L
L L
L
L
L
L
Q1 -4.7.8
L
L
See table 2
L
RX.
"L":
"L":
52
53
Q7
04
H
L
L L
H H
L
H
L
L L
L
L
H
H
H
H
H
L
L
L
L L L
H
H
H
H
H
H
L
L
H
H
L
L L H
L
H
H
H H
L
H
L
H
L
H
L
L L
L
L
H
H
H
H
H
H
L
L
L
H
L
H
L
L
L L
H
H H
H
H
TX.
ON.
51
as
H
L
H
L
H
L
H
H
H
L
H
L
H
L
.-
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
L
Page 57

TSU-6 PC BOARD VIEWS
Component side view
TM-441A/E
TSU-6 (CTCSS UNIT)
Foil side view
TSU-6 CIRCUIT DIAGRAM
CTCSS UNIT(X52-3100-00)
,---
I
I
CN'
GNO
' 0-
10
"cl
9
SC
:::
8
CO
7
PTT
6
TO
5
SOD
4
CT
3
OT
2
ET
,
I
'!':
.,.;;
u
: Component side
_: Foil side
---:,:-
R'4 tM
I
I
01
-J:
r-
1
T .,.
L_-(W
I
-
a:
I
L _
Q2
r--tl
T ~:
L __
-<W
57
Page 58

TM-441A/E
General
Frequency range. .................................. 438 to 450 MHz . TM-441 A (K.P)
Mode. . .
Antenna impedance .
Power requirements .
Ground...... .. .
Frequency stability .
Current drain
Transmit mode .
Receiver mode with no signal.
Operating temperature .
Dimensions (W x H x D) .
(Projection included). . .
Weight .
Transmitter
Output power*
HI 35W
MID lOW
LOW Approx. 5W
Modulation Reactance modulation
Spurious radiation Less than -60dB
Maximum frequency deviation ±5kHz
Audio distortion (at 60% modulation) Less than 3% (300 to 3000Hz)
Microphone impedance 500 to 600n
SPECIFICATIONS
430 to 440 MHz. TM-441 A (Ml. TM-441 E (E)
. F3E (FM)
..50,0,
. .. 13.8VDC ±15%(117to158)
. .. Negative
.. Less than ±10 ppm
· Less than lOA
· Less than 0.6 A
.... -20°C to 60°C (-4°F to +140°F)
. ... 140 x 40 x 160 mm (5-1/2" x 1-37/64" x 6-19/64")
. .. 141 x42 x 171 mm (5-9/16"x 1-21/32"x6-47/64")
·... 1.2 kg (265 Ibs)
Receiver
Circuitry Double conversion superheterodyne
Intermediate frequency (1st/2nd) 30.825MHz/455kHz
Sensitivity (12dB SINAD) Less than 0.1611V
Selectivity
-6dB More than 12kHz
-60dB Less than 24kHz
Supurious response Better than 65dB
Squelch sensitivity Less than 0.1 llV
Output (5% distortion) More than 2W across 8n loads
External speaker impedance 8n
Notes:
1. Circuit and ratings are subject to change without notice due to advancements in technology.
2. * Recommended duty cycle: 1 minute Transmit, 3 minutes Reception.
KENWOOD CORPORATION
Shionogi Shibuya Building, 17·5, z-chorne Shibuya, Shibuya-ku, TOkyo 150, Japan
KENWOOO U.s.A. CORPORATION
COMMUNICATIONS & TEST EQUIPMENT GROUP
PO BOX 22745, 2201 East Dominguez SI, Long Beach, CA 90801·5745. U.S.A.
KENWOOO ELECTRONICS DEUTSCHLANO GMBH
Hernbrucker Str. 15, 6056 Heusenstamm, West Germany
KENWOOD ELECTRONICS BENELUX NV
Mechelsesteenweg 418 B·1930 Zaventem, Belgium
TRIO-KENWOOO FRANCE S.A.
13, Boulevard Ney, 75018 Paris, France
KENWOOO ELECTRONICS AUSTRALIA PTY. LTD.
=.o. Box 504, 8 Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia
KENWOOO&LEE ELECTRONICS, LTD.
Wang Kee Building, 5th Floor, 34·37, Connaught Road, Central, Hong Kong
KENWOOD ELECTRONICS CANADA INC.
PO BOX 1075, 959 Gana Court, Mississauga, Ontario, Canada L4T 4C2
,/