
TRANSCEIVER CONTROL UNIT 9000
The Transceiver Control Unit TCU 9000 consists of a handset and a control box and operates like
a terminal connected to a computer meaning that all operations which are entered on the
Transceiver Control Unit will be performed by the Transceiver Unit. The Transceiver Control Unit
contains the following PCBs including the described circuits:
Microphone Board 908:
Microphone Board 908: The board is located inside the handset and includes Microphone and
HOOK ON detector Microphone and HOOK ON detector
AF Amplifier Board 907:
The board is located inside the handset and includes OP-AMPs to amplify the earpiece signal and
to add gain to the microphone signal. The microphone signal level can be adjusted here.AF Amplifier
Board 707:
TCU Transceiver Control Board 904:
The Transceiver Control Board includes Display, Keyboard and a microprocessor. The
microprocessor performs the keyboard scanning, display driving, data communication with the
Transceiver Unit as well as controlling the Display and Keyboard Backlight. The beep tone is
generated on this board and the connectors for the handset and internal loudspeaker are also
located on this board.
TCU Audio Board 905:
The Transceiver Audio Board includes AF receiver/driver, AF amplifier and volume control. It
performs the handling of the bidirectional AF lines, amplifying AF signals for the earpiece, the internal
and external speaker and the line output. The connector for external speaker, phone and morse
key is located on this board.
TRANSCEIVER CONTROL UNIT 9000
TECHNICAL DESCRIPTION
TRP 9250 TECHNICAL MANUAL
4-3
Summary of Contents for TRP 9250
Page 1: ...TRP 9250 250 Watt Radio Transceiver for MF HF SKANTI...
Page 5: ...ff qom VORM qb ekf i j kr i...
Page 7: ...INTRODUCTION 1 2 TRP 9250 TECHNICAL MANUAL...
Page 17: ...OPERATION 2 OPERATION Table of Contents 2 2 TRP 9250 TECHNICAL MANUAL...
Page 73: ...INSTALLATION 3 INSTALLATION Table of contents 3 2 TRP 9250 TECHNICAL MANUAL...
Page 99: ...INSTALLATION 3 28 TRP 9250 TECHNICAL MANUAL...
Page 139: ...TECHNICAL DESCRIPTION 4 TECHNICAL DESCRIPTION Table of Contents 4 2 TRP 9250 TECHNICAL MANUAL...
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Page 152: ...SERVICE 5 SERVICE Table of contents 5 2 TRP 9250 TECHNICAL MANUAL...
Page 166: ...SERVICE POWER PROTECTION 5 16 TRP 9250 TECHNICAL MANUAL...
Page 174: ...SERVICE SERVICE RELATED PROG KEY OPERATIONS 5 24 TRP 9250 TECHNICAL MANUAL...
Page 194: ...DSC 9000 FRONT PANEL DSC OPERATION DSC 9000 FRONT PANEL 6 2 TRP 9250 TECHNICAL MANUAL...
Page 264: ...DSC OPERATION 6 72 TRP 9250 TECHNICAL MANUAL...
Page 266: ...DSC INSTALLATION 7 DSC INSTALLATION Table of Contents 7 2 TRP 9250 TECHNICAL MANUAL...
Page 288: ...DSC INSTALLATION 7 24 TRP 9250 TECHNICAL MANUAL...