Scott Alpha 1 Alpha 6 Service Manual

Page 1

ZCS Lt price $6.00

SERVICE MANUAL
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H. H. SCOTT, INC., 20 Commerce Way, Woburn, Mass. 01801, Tel. 617 933-8800

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------ NOTICE-----o

The following safety precautions must be followed to assure continued
reliability and safety against fire and shock hazard:

1.) Replacement parts used during servicing of this appliance must
have identical characteristics as those offered and recommended
by H. H. Scott, Inc.

2.) Satisfactory and approved service procedures dictate that ALL PARTS,
no matter how apparently unimportant, be replaced exactly as in the
original design.

EXAMPLES:
a) Braided glass tubing over resistors.
b) Heatsinks on transistors.
c) Ceramic tube spacers.
d) All mechanical parts, i.e. covers, brackets, screws etc.

3.) A dielectric test is to be performed on each appliance following
the re-assembly and before returning the unit to the customer.

4.) The dielectric test, to be performed on H. H. Scott, Inc.
electronic components serviced in the U. S. and Canada for use in
these countries, shall consist of not less than the following:*

1.) A dielectric tester designed to supply not less than 1100 volts
at 60 Hz and employing leakage current indicator/s is to be used.

2.) The tester is to be connected per the instructions enclosed
with the instrument, or as follows:

a) The tester is connected to the power line receptacle,
and the power switch is turned ON.

b) Sufficient time is allowed for the tester supply to
stabilize and then the output voltage is adjusted for
1080 volts.

c) Leads of the tester, usually marked GND and RV, are
connected between chassis GND and both blades of the
male plug of the power cord.

d) Switch tester to "test" and observe leakage indicator.

LEAKAGE CURRENT MUST NOT EXCEED 0.5 mA.

* Dielectric tests made by service personnel in countries other than
United States and Canada must use test equipment and procedures
specified by the safety agency serving that country.

copvmcm H.H. SCOTT ELECTRONICS®
Printed in USA 6/78 029.1175-044

H. H. Scott Electronics is a registered
trademark of H. H. Scott, Inc,