Rohde & Schwarz EB 100 641.8018.08 Analyzer
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Model:
EB 100 641.8018.08
Date:
1985
Class:
Type:
SubType:
Miniport Receiver
Manual type:
Service Manual
Pages:
188
Size:
5.81 Mbytes (6095445 Bytes)
Language:
english, german
Revision:
Manual-ID:
754.2408.02
Date:
1985 01 01
Quality:
Scanned document, all readable.
Upload date:
2016 12 11
MD5:
fe637a1aba86f97872463c1b7edbdbc7
Downloads:
965
Information
5_._Maintenance ... 5
5.1 Electrical Maintenance ... 5
5.2 Mechanical Maintenance ... 5
5-3 Storage ... 5
6._Performance Test ... 6
6.1 Preliminary Remarks ... 6
6.2 Required Measuring Equipment and
Accessories ... 7
6.3 Checking the Puses PI and F2 ... 8
6.3.1 Changing the Puses FI and F2 ... 8
6.4 Battery Check ... 8
6.5 Illumination ... 8
6.6 Checking Operation by means of the Keypad . . 9
6.7 Tuning Knob ... 9
6.8 Function of Carrier Squelch ... 9
6.9 Checking the IF
Filter ... 9
6.10 Frequency Accuracy ... 10
6.11 Checking the Signal Level Display and
the Level Tone ... 11
6.12 Sensitivity ... 11
6.14 IP Rejection ... 12
6.16 Checking the AFC Function ... 13
6.17 AF Output ... 13
6.18 AF S/N Ratio at Vln = 1 mV . .' ... 13
6.19 Checking the Power-Down Logic for the
CPU D301 ... 13
6.20 Peak rectifier ... 14
t
6.21 IF Output ... 14
_Troubleshooting of Subassembly ... 15
8_._Removal of Subassemblies ... 18
8.1 Synthesizer ... 19
8.2 Tuning Unit ... 19
8.3 Tuner ... 19
8.4 IP Section ... 20
8.5 Control Unit ... 20
9 ._Circuit Description ... 21
9.1 Tuner ... 21
9.2 IP Section ... 22
9.3 Synthesizer ... 25
9.4 Control Unit ... 25
9.5 Tuning Unit ... 28
10._Troubleshooting and Repair of
Subassemblies ... ... 31
10.1 Preliminary Remarks ... 31
10.1.1 Spare Parts ... 31
10.1.2 Required Measuring Equipment and
Accessories ... 32
10.2 Troubleshooting ... 35
10.2.1 Tuner Fault Tracing Chart ... 35
10.2.2 IF Section Fault Tracing Chart ... 39
10.2.3 Synthesizer Fault Tracing Chart ... 43
10.2.4 Control Unit Fault Tracing Chart ... 46
10.2.5 Tuning Unit Fault Tracing Chart ... 52
10.3 Electrical Test and Adjustment of
Subassemblies ... 54
10.3.1 Tuner ... 54
10.3.1.1 Checking the Overall Gain ... 54
10.3.1.2 Checking the 40-dB Attenuator . ... 55
10.3.1.3 Checking the 1st VHF/UHF
Amplifier and
1000-MHz Lowpass
Filter ... 55
10.3.1.4 Checking 1st Mixer ... 55
10.3.1.5 Checking 2nd VHF/UHF
Amplifier ... 56
10.3.1.6 Checking the Input Signal Path for
f ^ 500 MHz ... 56
10.3.1.7 Checking the UHP
Amplifier ... 57
10.3.1.8 Checking the Input Signal Path for
f < 500 MHz ••••••••••••••••• 57
10 .3 .1*9 Checking 2nd Mixer and Subsequent
Amplifier ... 58
10.3.1.10 Adjustment of the 650-MHz Lowpass
Filter . . 58
10.3.1.11 Adjustment of the 629 .3-MHz Bandpass
Filter ... 59
10.3.2 IF Section ... 60
10.3.2.1 Overall Check of IF Section ... 60
10.3.2.2 Checking the 128-MHz
Oscillator ... 6l
10.3.2.3 Checking th Signal Path ... 62
10.3.2.5 Checking the
Oscillator Reference Signals . . 63
10.3.3 Synthesizer ... 64
10.3.3.1 Checking the
Oscillator Signal ... 64
10.3.3.2 Checking the
Oscillator and the
512-MHz Mixer ... 64
10.3.3.3 Checking the Divider Chain ... 65
10.3.3.4 Checking the Reference Frequency
Generation ... 65
10.3.4 Control Unit ... 65
10.3.4.1 Checking the System Clock ... 66
10.3.4.2 Checking the Reading and Writing Signals . . 66
10 *3 *5 Tuning Unit ... 66
10.3.5.1 Checking the Tuning Pulse Generation ... 66
10.3.5.2 Checking the AF
Amplifier ... 66
10.3.5.3 Checking the Level Tone
Generator ... 67
Pig. 11-1 Test set-up for functional test
Pig. 11-2 Test set-up for checking the 3-db bandwidth 150
kHz Pig. 11-3 Test set-up for checking the peak rectifier
Pig. 11-4 Removal of assemblies (without control unit)
Pig. 11-5 Removal of
Control Unit
Service documentation
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