With an input signal of 10
mV
at the microphone input and with the micro-
phone gain,
R5,
set to maximum, the following audio levels should result. All
values are r.m.s, AC volts.
1) At test point
2,50
mV.
2) At test point 3,200
mV.
3) At test point 4,1.0 volt.
4) At test point 5,70
mV
with clipping control at 20
dB.
5) Approximately 25
mV
at test point 12.
VII. SERVICE DATA
The SP75 will be checked and aligned at the factory for a nominal fee if there is
no evidence of tampering. Transportation charges are extra. Any necessary
repairs will be made on a time and materials basis. Please write or call the
factory for authorization before
returning
your unit for alignment or service.
Address your requests for authorization to:
R.
L. DRAKE
COMPANY
540 Richard Street
Miamisburg, OH 45342
ATTN:
Customer Service Department.
Telephone: (Area Code 513) 866-3211
Telex:
288-017
9
,