Kenwood TM-201A Service Manual

KENWOOD
SERVICE
MANUAL
TM=2010
isis
oy
VHF
FM
TRANSCEIVER
Photograph shows K type.
CIRCUIT DESCRIPTION...........
PACKING
PARTSLIST .....
PC BOARD VIEW
A UNIT (X44-1530-11,61)
FINAL UNIT {X45-1330-11)
DISPLAY UNIT (X54-1740-01,51,61) ..
TONE
UNIT
(X52-1250-50,61)
W,
T
only
.....
BUNIT (X53-1340-11,6
OISASSEMBLY .
DIMENSIONG........
ADJUSTMENT
LEVEL DIAGRAM
FC-10 OPTION
TU-3 OPTION
SCHEMATIC
DIAGRAM
(W,
I)
BLOCK DIAGRAM...
SCHEMATIC
DIAGRAM
(KM).
REFERENCE DATA
SPECIFICATIONS.

Kenwood TM-201A Specifications

General

Frequency Range	144-148 MHz
Modulation	FM
Supply voltage	13.8 VDC
Type	FM Transceiver
Receiver Sensitivity	0.25 µV (12dB SINAD)

Summary

CIRCUIT DESCRIPTION

RX SECTION

Description of the receiver input signal path and components.

TX SECTION

Description of the transmitter signal path and components.

PLL SECTION

Explanation of the Phase Locked Loop system.

Table 5 Connector terminals name and functions

List of connector functions.

Table 6 Terminal functions

Comprehensive list of terminal functions.

PRECAUTIONS FOR HANDLING GALLIUM ARSENIDE FET's (GaAs FET)

Handling precautions for GaAs FETs.

PARTS LIST

CAPACITORS

Information on capacitor codes and values.

SEMICONDUCTOR

List of semiconductors with part numbers.

A UNIT (X44-1530-11, 61)

B UNIT (X53-1340-11, 61)

DISPLAY UNIT (X54-1740-01, -51, -61)

TONE UNIT (X52-1250-50, -61)

PC BOARD VIEW

A UNIT (X44-1530-11) Component side view

Component layout for the A unit.

FINAL UNIT (X45-1330-11) Component side view

Component layout for the final unit.

DISPLAY UNIT (X54-1740-01) Foil side view

Component layout for the display unit.

B UNIT (X53-1340-61) Component side view

Component layout for the B unit.

DISASSEMBLY

DISASSEMBLY FOR UPPER CASE

DISASSEMBLY FOR LOWER CASE

DISASSEMBLY FOR DISPLAY UNIT

DISASSEMBLY FOR FRONT PANEL

REMOVING A UNIT

REMOVING B UNIT

ADJUSTMENT

PREPARATION

RX ADJUSTMENT

Adjustment procedures for the receiver section.

TX ADJUSTMENT

Adjustment procedures for the transmitter section.

OPERATIONAL CHECKS

Operational checks and their corresponding adjustments.

FINAL UNIT (X45-1330-11) TOP VIEW

FINAL UNIT (X45-1330-11) BOTTOM VIEW

SCHEMATIC DIAGRAM (W, T) TM-201A

A UNIT (X44-1530-11)

B UNIT (X53-1340-11)

DISPLAY UNIT (X54-1760-0)

SCHEMATIC DIAGRAM (K, M) TM-201A

DISPLAY UNIT (X54-1760-01)

FINAL UNIT (X45-1330-11)

TONE UNIT (X52-1250-XX)

REFERENCE DATA

<DEVIATION>

<INTER MODULATION>

<RX SENSITIVITY>

<S LEVEL SENSITIVITY>

SPECIFICATIONS

[General]

General specifications of the unit.

[Receiver]

Receiver specific specifications.

[Transmitter]

Transmitter specific specifications.