This section of the Manual is divided into two parts. This first part, titled
"General," describes what to do about any difficulties that might occur
right after the unit as assembled. The second part, titled "Troubleshooting
Chart," lists anumber ofpossible difficulties that could arise. It also lists the
possible causes of these difficulties.
The following paragraphs deal with the types of difficulties that may show
up right after the kit is assembled, before you can put it into operation.
These difficulties are most likely to be caused by assembly errors or faulty
soldering. The following checks will help you locate any error ofthis type.
NOTE: Refer to the "X-Ray Views" (Illustration Booklet, Pages 13 and 14)
for the physical location of parts.
It is frequently helpful to have a friend check your work. Someone
who is not familiar with the unit may notice something you consis-
tently overlook.
About 90% of the kits that are returned for repair do not function
properly due to poor connections and soldering. Therefore you can
eliminate many troubles by reheating all connections to make sure
that they are soldered as described in the "Soldering" section p-
Be sure the proper part has been wired into the circuit at
location as shown in the Pictorials and as called out in the w'
instructions.
Check the \'alues ofthe parts. Be sure the proper part has been wi!
into
be
circuit at each location as shown in the Pictorials and
called out in the wiring instructions.
Check forbits ofsolder, wire ends, or other foreign matter which
be lodged in the wiring or between the foils on the circuit bo
If, after careful checks, you still can not locate the trouble an
\'oltrneter is a\'ailable, check voltage readings against those sho
on the Schematic Diagram. NOTE: All voltage readings were ta
with a high input impedance voltmeter. Voltages may vary as m
as
=20%.
A reyiew of the "Circuit Description" may also help you find
trouble.
NOTE:In an extreme case where you are unable to resolve a difficulty, re
to the "Customer Sen'ice" information inside the rear cover ofthe Man
Your Warranty is located inside the front cover.
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