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Pillow Speaker Hook Up
Connect a Pillow Speaker to the HealthView TV.
Locate the Pillow Speaker Output jack on
1
the back of the HealthView TV.
Connect an accessory pillow speaker or
2
wired remote control unit to this 6-pin
jack.
Select PILLOW SPKR on the rear panel
3
of the HealthView TV.
Use a pillow speaker by Curbell, Model A-16455-
02 or other UL recognized pendant control
bearing the warning:
"Risk of fire if used in oxygen enriched
atmosphere. Keep pendant control away from
oxygen equipment."
Controlling the TV with Serial Data
The TV is capable of being controlled by a single-
wire, serial data signal. This is a Zenith patented
technology and is being implemented by certain
brands of "smart" pillow speakers, such as
Curbell's "GEN-II" models.
Pillow Speaker Interface
This connector furnishes three control lines and
an audio output. A patient-pendant remote
control, or entertainment audio and nurse call
system may be connected here. All lines are
isolated from the AC power line and earth ground.
(Opto-isolators isolate the control lines, and a
transformer isolates the audio. There are no
relays or inductive components in the control
lines).
Pin no.
Purpose
1
External TV On/Off switch
2
(Not used)
3
External Channel Up switch or Data in
4
Common connection for control, data, and Audio output.
Impedance to earth ground is a 8.2- meg resistor
in parallel with a 1000 pf capacitor.
Isolated audio output. Nominal 14-ohm source
5
impedance with short circuit protection. Intended
for a pillow speaker with a low-impedance pad-type
volume control.
6
External Channel Down switch
Pillow speaker not included with
HealtView TV.
TV
SPKR.
VOLUME CONTROL
CHAN
TV
DOWN
ON/OFF
Controlling the TV with mechanical switches
Pin 4 (common) is momentarily connected to
pin 1, 3, or 6 via push-action switches to control
On/Off and Channel Up/Down. These pins are
at +13 volts DC (when measured from pin 4)
with the switches open. Current draw is 8 mA
when a switch is closed. (This operation using
the 5-Wire Interface except that only +7 volts
DC was supplied and current draw was only 2.5
mA).
4
5
6
3
1
2
TV Back
ANTENNA
TV SPEAKER
CABLE
VIDEO IN
SPEAKER OUT
M.P.I.
PILLOW SPEAKER
AUDIO IN
TV Back Panel
(Expanded View)
4
5
3
6
1
2
(MALE
PLUG)
CHAN
UP
1
TV ON/OFF
2
OPEN
3
CHAN UP/DATA IN
4
COMMON
5
AUDIO OUT
6
CHAN DOWN
Page 11
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