Sennheiser EM 1031-V Service Manual page 18

—_—}-
8.3
8.5
8.6
AF frequency
response
channel A
Se
8.47A F. frequency
response
channel A
AF frequency
response
channel A
THD channel A
THD channel B
eee
RF signal generator
at J101:
RF: 1 mV,
deviation: 40 kHz,
modulation: 400 Hz;
otherwise as 8.2
as 8.2
modulation: 30 Hz;
otherwise as 8.3
modulation: 20 kHz;
otherwise as 8.4
deviation::56 kHz,
modulation: 1 kHz;
otherwise.as 8.5
RF signal generator
at J1:
otherwise as 8.6
as 8.3
as 8.4
THD meter
THD meter
J4
JAE
11.4 dBu (0 dB)
- 2.9 0004.9 dBu
(65... 8.5 dB)
- 18.6...- 22.6 dBu
(- 30...- 34 dB)
THD <.0.5 %
THD < 0.5 %
Optimise
| with:T103 if
necessary.
Optimise
with T1 if
necessary.
From.a deviation of
-approx.:51:KHz-up, the
"+ 172-dB" LED ofthe
AF: level display lights
up. :
From a deviation of
approx. 51 kHz up, the
"+ 12 dB" LED of the
AF level display lights
up.
9 Level-controlled -|-RF: approx. 2.0 uV;. | AF voltmeter J4 AF output is
squelch otherwise as 8.7 muted
-|.channel B i
Level-controlled RF signal generator | AF voltmeter AF output is
squelch at J1: muted
channel A RF: approx. 2.0 pV;
otherwise as 9
9.2.) Noise-controlled) | RF: 1 mV, AF voltmeter J4 AF output is
squelch deviation: approx. muted
channel A 60 kHz, modulation:
50 kHz;
otherwise as 9.1
NOTES:
EM 1031-V
02/97-18