Model PPA VP 37 Wide-Band FM Wireless Listening System
11
NiMH (or rechargeable) batteries, slide the battery selection switch to the
“NiMH” position. Press the batteries into place over the fabric strip. Be sure
to observe proper polarity (+/-). Damage due to improper battery installation
may void the warranty on the product. Close the battery door. When the
sound becomes weak or distorted, replace or recharge the batteries. NOTE:
The red LED “ON” indicator on top of the unit will flash to indicate low
battery.
Connecting Earphones
Plug the earphone into the “Headphone” jack on the top of the unit. Only
monophonic earphones will operate properly. If stereo headphones are
used, sound will be heard only in one side. Williams Sound evaluates each
earphone and headphone used with the PPA R37-8 receiver; we can
only assure optimum performance when Williams Sound earphones and
headphones are used.
Operating the Receiver
Turn the receiver on by rotating the Volume control knob. The ON indicator
should illuminate RED. Refer to the channel selection chart in Figure 6 to
choose from 8 standard frequencies. Turn the channel selector knob to the
desired channel.
IMPORTANT: Make sure the receiver frequency matches the transmitter
frequency!
Adjust the volume to a comfortable
listening level. To turn the receiver off,
rotate the Volume control knob to the
left until it clicks off. The ON indicator
should not be lit. To prolong the battery
life of the unit, turn the receiver off when
it is not in use.
Figure 6: Channel Selection Chart
Freq. (MHz)
Channel
R37-8 CH
72.1
A
1
72.2
K
72.3
B
2
72.4
N
72.5
C
72.6
O
3
72.7
D
72.8
P
4
72.9
E
74.7
I
5
75.3
J
75.4
R
6
75.5
F
75.6
S
75.7
G
7
75.8
T
75.9
H
8