Philips - PM 6624 - Counter
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Philips PM 6624
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Equipment:
PM 6624
Date:
1976
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Group:
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Information
The Counter in the PM 6620-series have frequency ranges
from D.C. up to 80 MHz, 520 MHz and 1 GHz respectively for
the PM 6622 PM 6624 and PM 6625 All models can measure frequency, ratio, period, time
interval and have a totalizing mode.
Optional Accessories uch as four different Oscillator a
battery unit, a BCD output unit, a D/A Converter and a BUS Interface ystem extend the range of application.
2 Manuals
Service and user manual
Manual type:
Service and user manual
Pages:
53
Size:
51.2 MB
Language:
english
Revision:
Manual-ID:
9499 460 08611
Date:
June 1976
Quality:
Scanned document, all readable.
Upload date:
Jan. 30, 2017
MD5:
27e3124b-da20-2830-cb30-721022fd14cf
Downloads:
3681
Information
General information
I. Introduction 5
II. Technical data 5
III Accessories 8
Directions for use
IV. Installation 9
1. Mains voltage conversion 9
2. Earthing 9
3. Fuses 9
4. Optional Accessories 9
V. Controls, connectors and indicators 10
VI. Operation 16
General information
1. Switch on power 16
2. Warm op time 16
3. External Frequency Standard 16
4. Control settings 16
4.1. A, B and C inputs 16
4.2. AC and DC coupling 16
4.3. Attenuator and trigger level control 16
4.4. Separate and common via B mode 17
4.5. Positive and negative slope triggering 17
4.6. Hold off 17
5. Basic measurement
5.1. Check PM 6622 18
5.2. Check PM 6624 25 19
5.3. Frequency A PM 6622 25 20
5.4. Frequency C PM 6624 25 20
5.5. Period B PM 6622 25 21
5.6. Time Interval A to B PM 6622 25 22
5.7. Ratio A/B PM 6622 25 22
5.8. Ratio C/B PM 6624 25 23
5.9. Count A Start/Stop and Gated by B PM 6622 25 24
5.10. Hold off PM 6622 25
VII. Internal checks and adjustments 26
1. Location of trimmers and test points 26
2. Test equipment 26
3. D.C. voltages 26
4. D.C. balance channel A 26
5. Frequency compensation channel A 26
6. DC balance channel B 26
7. Frequency compensation channel B 26
VIII Oscillator PM 9677, PM 9678, PM 9679 and PM 9690 28
1. General 28
2. Technical data 28
3. Frequency adjustment PM 9677 29
4. Frequency adjustment PM 9678 29
5. Frequency adjustment PM 9679 29
6. Frequency adjustment PM 9690
7. Repair of Oscillator PM 9679 and PM 9690 29
8. Pin configuration 29
9. Circuit diagram, component layout and spare parts list PM
9677 30 10. Circuit diagram, component layout and spare
parts list PM 9678 31
IX. Replacing parts 32
1. Push-button switches 32
2. Text plate and front rim 32
3. Handle 32
4 Power Supply 32
X. Spare parts, circuit description of Power Supply and
prescaler units, 33 test conditions and circuit diagrams
1. Spare parts Unit 1 PM 6622 25
2. Spare parts prescaler PM 6624 3. Spare parts prescaler PM 6625 4. Mechanical parts PM 6622 25
5. Circuit description prescaler PM 6624 6. Test conditions
7. Circuit diagrams
Service and user manual
Manual type:
Service and user manual
Pages:
135
Size:
21.6 MB
Language:
english
Revision:
Manual-ID:
9499 460 09302
Date:
March 1978
Quality:
Scanned document, all readable.
Upload date:
Aug. 1, 2020
MD5:
9bee1b03-e77c-c8fb-5dbd-4fed59ffd654
Downloads:
1771
Information
General information
I. Introduction 5
II. Technical data 5
III Accessories 8
Directions for use
IV. Installation 9
1. Mains voltage conversion 9
2. Earthing 9
3. ' Fuses 9
4. Optional Accessories 9
V. Controls, connectors and indicators 10
VI. Operation 16
General information
1. Switch on power 16
2. Warm up time 16
3. External Frequency Standard 16
4. Control settings 16
4.1. A, B and C inputs 16
4.2. AC and DC coupling 16
4.3. Attenuator and trigger level control 16
4.4. Separate and common via B mode 17
4.5. Positive and negative slope triggering 17
4.6. Hold off 17
5. Basic measurement
5.1. Check PM 6622 18
5.2. Check PM 6624 25 19
5.3. Frequency A PM 6622 25 20
5.4. Frequency C PM 6624 25 20
5.5. Period B PM 6622 25 21
5.6. Time Interval A to B PM 6622 25 22
5.7. Ratio A/B PM 6622 25 22
5.8. Ratio C/B PM 6624 25 23
5.9. Count A Start/Stop and Gated by B PM 6622 25 24
5.10. Hold off PM 6622 25
VII. Internal checks and adjustments 26
1. Location of trimmers and test points 26
2. Test equipment 26
3. D.C. voltages 26
4. D.C. balance channel A 26
5. Frequency compensation channel A 26
6. DC balance channel B 26
7. Frequency compensation channel B 26
VIII Oscillator PM 9677, PM 9678, PM 9679 and PM 9690 28
1. General 28
2. Technical data 28
3. Frequency adjustment PM 9677 29
4. Frequency adjustment PM 9678 29
5. Frequency adjustment PM 9679 29
6. Frequency adjustment PM 9690 29
1, Repair of Oscillator PM 9679 and PM 9690 29
8. Pin configuration 29
9. Circuit diagram, component layout and spare parts list PM 9677 30 10. Circuit diagram, component layout and spare parts list PM 9678 31
IX. Replacing parts 32
1. Push-button switches 32
2. Text plate and front rim 32
3. Handle 32
4 Power Supply 32
X. Spare parts, circuit description of Power Supply and prescaler units, 33 test conditions and circuit diagrams
1. Spare parts Unit 1 PM 6622 25 33
2. Spare parts prescaler PM 6624 36
3. Spare parts prescaler PM 6625 37
4. Mechanical parts PM 6622 25 35
5. Circuit description prescaler PM 6624 25 and Power Supply 39
6. Test conditions 41
7. Circuit diagrams 43
List of figures
g
IV-1 Mains transformer connections ®
V-1 Top view of PM 6622 25
V-2 Bottom view of PM 6622 25
VI-1 AC/DC coupling
VI-2 Triggering 17 VI-3 COM via B mode
VI-4 Positive and negative slope triggering 17
VI-5 Simple pulse width measurement 17
VI-6 Period average measurement 21
VI-7 Single period measurement 21
VI-8 Start/Stop by B measurement 24
VI-9 Gated by B measurement 24
VI-10 Time interval measurement on noisy signals 25
VIII-1 Oscillator PM 9677 30
Vlll-2 Oscillator PM 9677 30
VIM-3 Oscillator PM 9678 31
VIII-4 Oscillator PM 9678 31
IX-1 Replacing push-button switch 32
IX-2 Removing the front rim 32
X-1 Current paths in DC-to-DC Converter 40 X-2 Component layout U1 46 X-3 Input/Output Amplifier D Oscillator decimal counting unit, display and time 52
base divider . I
X-4 Input Amplifier A and B 58
X-5 Power Supply 62
X-6 Prescaler PM 6624 64
X-7 Prescaler PM 6624 64
X-8 Prescaler PM 6624 66
X-9 Prescaler PM 6625 68 .
X-10 Prescaler PM 6625 68
X-11 Prescaler PM 6625 70