Kenwood TM-241A Transceiver
Manufacturer:
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Model:
TM-241A
Date:
1994
Category:
Group:
Description:
Information
General
Frequency range
...................................................136 to
174MHz : TM-241A (M2,M3), TM-241 E(E2)
144 to 148MHz : TM-241A <K,K2,P,P2,X,M)
144 to 146MHz : TM-241 E (E,E9,EM)
Mode......................................................................
F3E (FM)
Antenna
impedance............................................. 50C2
Power
requirements............................................
13.8V DC ± 15% (11.7 to 15.8V)
Ground
...................................................................
Negative
Frequency
stability...............................................
Less than ±10ppm
Current
drain.........................................................Transmit
mode : Less than 11A Receive mode with no signal: Less than 0.6A
Operating
temperature........................................-20°C to
+60°C (-4°F to +140°F)
Dimensions (W x H x D)......................................
140 x 40 x 160 mm (5-1/2" x 1-37/64" x 6-19/64")
Projection
included.......................................... 140 x 40
x 172 mm (5-1/2" x 1-37/64" x 6-25/32")
Weight....................................................................
1.2kg (2.65lbs)
Manual type:
User Manual
Pages:
57
Size:
2.14 Mbytes (2247677 Bytes)
Language:
english
Revision:
Manual ID:
B62-0031-30
Date:
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2017 01 08
MD5:
325979a0031803130bd7bd893da20108
Downloads:
2789
Information
Instruction Manual
1. BEFORE OPERATION ... 4
2. SPECIFICATIONS ... 6
3. ACCESSORIES ... 7
4. INSTALLATION INSTRUCTIONS ... 7
5. OPERATION
CONTROL FUNCTIONS ... 10
Receiver OPERATION
Reception
... 16
Frequency Selection ... 17
Frequency Step Selection ... 17
Programmable VFO Tuning Limits ... 18
ALT(TM-541A/E only) ... 19
Transmitter OPERATION ... 20
Time-out Timer (TOT) ... 20
MEMORY
Microprocessor Memory back-up ... 21
Initial State
... 21
Microprocessor Initialization ... 21
Memory Channel ... 21
Memory Contents ... 22
Memory Entry ... 22
Memory Channel Recall ... 24
Memory Shift ... 24
SCAN
Scan Operation ... 25
Hold/Resume Programming ... 25
Band Scan
... 26
Programmable Band Scan ... 26
Memory Channel Scan ... 27
Memory Channel Lockout ... 27
Priority Alert Function ... 28
Repeater OPERATIONS
Transmitter Offsets ... 28
Reverse Function ... 29
Tone Operation ... 29
Tone Frequency Selection ... 29
Autopatch (U.S.A. version only) ... 30
TONE / CTCSS OPERATION ... 30
DTSS (Dual Tone Squelch System)
OPERATION
... 31
DRS (Digital Recording System)
OPERATION ... 34
PAGING
... 41
TONE ALERT SYSTEM ... 47
APO (Automatic Power Off) ... 48
DIM(Dimmer)
... 48
BEEP ... 49
LOCK/A.LOCK ... 49
6. BLOCK DIAGRAM and
SCHEMATIC DIAGRAM Another sheet
7. MAINTENANCE ... 50
IN CASE OF DIFFICULTY ... 51
8. OPTIONAL ACCESSORIES ... 52
Manual type:
Service Manual
Pages:
71
Size:
39.89 Mbytes (41822770 Bytes)
Language:
english
Revision:
Manual ID:
B51-8059-10 (N)1177
Date:
Quality:
Scanned document, very well readable.
Upload date:
2008 11 04
MD5:
5476bb898a2641ee06bf9cba15caaab0
Downloads:
10230
Information
Please use this service manual together withe the previous B51-8059-00.
Manual type:
Service Manual
Pages:
71
Size:
39.87 Mbytes (41811931 Bytes)
Language:
english
Revision:
Manual ID:
B51-8059-10
Date:
1994 01 01
Quality:
Scanned document, all readable.
Upload date:
2018 04 16
MD5:
90a724cb12086b6f43b536c6eafffab0
Downloads:
1500
Information
CIRCUIT DESCRIPTION ... 2
DESCRIPTION OF COMPONENTS ... 11
PARTS
LIST ... 15
EXPLODED VIEW
... 30
PACKING ... 31
ADJUSTMENT ... 32
TERMINAL FUNCTION ... 37
CIRCUIT DIAGRAMS / PC BOARD VIEWS
LCD ASS'Y (B38-0330-05) ... 38
PLL
(X58-3470-00) ... 39
PLL
(X58-3500-11) ... 41
APC
(X59-3130-00) ... 43
MIC AMP (X59-3610-00) ... 43
TX-RX UNIT (X57-369X-XX) ... 44
SCHEMATIC DIAGRAM ... 47
BLOCK
DIAGRAM ... 51
LEVEL
DIAGRAM ... 54
DRU-1 (DIGITAL RECORDING UNIT) ... 55
DTU-2 (DTMF
UNIT) ... 63
MC-44DM/MC-44DME (MULTI FUNCTION
MICROPHONE WITH AUTOPATCH) ... 65
MC-44 (MULTI FUNCTION MICROPHONE) ... 66
MC-44E (MULTI FUNCTION MICROPHONE) ... 67
TSU-6 (CTCSS UNIT)
... 68
SPECIFICATIONS ... BACK COVER
Manual type:
Service Manual
Pages:
60
Size:
5.74 Mbytes (6020961 Bytes)
Language:
english
Revision:
Manual ID:
B51-8059-00(B)1406
Date:
1990 01 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2020 10 19
MD5:
b917d9a3f7ec866631fb8193a3632161
Uploader:
Nelson PU2 NVD neviata@gmail.com
Downloads:
372
Manual type:
Service Manual
Pages:
71
Size:
39.89 Mbytes (41822770 Bytes)
Language:
english
Revision:
Revised
Manual ID:
B51-8059-101 N )1177
Date:
1994 05 01
Quality:
Scanned document, all readable.
Upload date:
2017 01 08
MD5:
f7f0c90cc73c2e0c1d2cb2299c15c009
Downloads:
1851
Information
This service manual is the same as the service manual (B51
-8059-00) for TM-241A.E /TM-241A : K,P,M,M2 TM 241E : E,E2)
destinations except that this manual contains new items for
/TM-241A : M3,X,K2,P2 TM-241E : E9,EM) destinations.
Use it together with the previous service manual (B51-8059-00).
CIRCUIT
DESCRIPTION ... 2
DESCRIPTION OF COMPONENTS ... 11
PARTS
LIST ... 15
EXPLODED VIEW
... 30
PACKING ... 31
ADJUSTMENT ... 32
TERMINAL FUNCTION ... 37
CIRCUIT DIAGRAMS / PC BOARD VIEWS
LCD ASS'Y (B38-0330-05) ... 38
PLL
(X58-3470-00) ... 39
PLL
(X58-3500-11) ... 41
APC
(X59-3130-00) ... 43
MIC AMP (X59-3610-00) ... 43
TX-RX UNIT (X57-369X-XX) ... 44
SCHEMATIC DIAGRAM ... 47
BLOCK
DIAGRAM ... 51
LEVEL
DIAGRAM ... 54
DRU-1 (DIGITAL RECORDING UNIT) ... 55
DTU-2 (DTMF
UNIT) ... 63
MC-44DM/MC-44DME (MULTI FUNCTION
MICROPHONE WITH AUTOPATCH) ... 65
MC-44 (MULTI FUNCTION MICROPHONE) ... 66
MC-44E (MULTI FUNCTION MICROPHONE) ... 67
TSU-6 (CTCSS UNIT)
... 68
SPECIFICATIONS ... BACK COVER
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