
TEST 25
Test 25 tests manual Gain Control on RX/EX Signal Path PCB 715. By choosing the right
synthesizer frequency the signal passes the 45 MHz filter and is mixed to a 1 kHz tone in the
audio part. By controlling the Manual Gain Control to low sensitivity the AF check indicates no
AF. High sensitivity shows AF present.
Band : 45 - 52.5 MHz
1.LO : 44.99900 MHz
3.LO : 456.00 kHz
Error code
Possible error source
PCB
00
OK
01
Not able to lower MGC
715
Cabling 910 - 715 or 911 - 715
02
Not able to rise MGC
715
Cabling 910 - 715 or 911 - 715
TEST 26
Test 26 tests Automatic Gain Control Hang facility on RX/EX Signal Path PCB 715.
Examine hang function in three steps:
1) Check normally AGC (with 1 kHz tone)
2) Check that AGC hangs (without signal)
3) Check that AGC hang has ended (without signal)
Band : 45 - 52.5 MHz
1.LO : 44.99900 MHz
3.LO : 456.00 kHz
Band : 67.5 - 75 MHz
1.LO : 80.00000 MHz
3.LO : 456.00 kHz
Error code
Possible error source
PCB
00
OK
01
AGC 715
Cabling 910 - 715 or 911 - 715
02
AGC hang facility
715
SERVICE
SELF TEST
5-36
TRP 9250 TECHNICAL MANUAL
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...
Page 147: ......
Page 149: ......
Page 150: ......
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...