AVO EA 113 Multimetro analogico
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Modello:
EA 113
Data:
0
Categoria:
Gruppo:
Descrizione:
Electonic Avometer
Informazioni
For almost fifty years the Avometer has built for itself an
unrivalled reputation for reliability and service. It is,
however, inevitable that instruments fail from time to time,
mainly due to accidental misuse, and when they do, it is
essential that they are repaired to the highest possible
standard. This booklet has been produced therefore to aid
our customers and associates, both at home and overseas, and
it is hoped that it will form a useful guide to the trained
engineer who has the task of servicing our products. The
instrument has not been dealt with in absolute detail, for
to do so, would be beyond the scope of this publication,
although it is assumed that the engineer undertaking the
work has a good knowledge of the principles of moving coil
multi-range measuring instruments and electronics.
The instrument has been f broken down1 in such a manner that
an engineer with suitable tools and test gear, can take Avo
components and spare parts and fit them into the instrument,
which will then only require a minimum degree of calibration
and test.
Particular note should be taken of the advice which is given
regarding the use of complete sub-assemblies. It is
advisable to keep a number of key items in stock, in order
that they can be immediately available when required. A
faulty movement can be returned to the factory and an
allowance will be made for serviceable component parts.
No attempt should be made to service an Avometer unless the
full range of recommended test equipment, is available. In
the event of a major overhaul the instrument should be
returned to the Avo representative in your territory.
Tipo di manuale:
Manuale di servizio
Pagine:
32
Dimensione:
6.87 Mbytes (7201545 Bytes)
Lingua:
english
Revisione:
ID del manuale:
6170-148/1B
Data:
Qualità:
Documento scansionato, tutto leggibile.
Data caricamento:
2015 03 07
MD5:
bbd133ddd53d53b9c4044c2345281966
Caricatore:
Paul Adams
Scaricamenti:
1032
Informazioni
Introduction 5
TEST FACILITIES AND EQUIPMENT REQUIRED
1. Essential Test Facilities, Equipment and Conditions 6
Instruments and Test Gear 6
Tools and Other Aids 7
Spare Parts 7
Miscellaneous Items 7
PRELIMINARY PROCEDURE
2. Suggested Repair Procedure 8
3. Consideration of Customer’s Report g
4. Rapid Functional Checks 9
REMOVAL OF ASSEMBLIES
5. Replacement of Battery or Fuse -jq
6. Removal of the Panel from the Case n
7. Removal of the Printed Circuit Range Board n
8. Removal of the Amplifier Board n
9. Removal of the Movement from the Panel 12
FAULT FINDING AND SERVICING INFORMATION
10. Fault Finding Table 13
11. Servicing Information 14
DISMANTLING AND REPLACEMENT
12. Dismantling the Movement 17
13. Front Panel Replacement 19
14. Slide Switch Replacement 20
ELECTRICAL TESTING
15. Transistor Selection Procedure 21
16. General Functional Check 21
17. D.C. Calibration Tests and Adjustments 21
18. A.C. Calibration Tests and Adjustments 22
19. Final Procedure. 23
20. Plates, Components List and Circuit Diagrams. 24