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206-3491-O
Pillow Speaker Hook Up
Locate the Pillow Speaker Output jack on the back
of the HealthView TV.
Connect an accessory pillow speaker or wired
remote control unit to this 6-pin jack.
Select PILLOW SPKR on the rear panel 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.”
TV
TV Back
ANTENNA
CABLE
M.P.I.
TV Back Panel
(Expanded View)
PILLOW SPEAKER
TV
SPKR
PILLOW
SPKR
Video
In
Speaker
Out
Audio
In
1
2
Connect a pillow speaker to the HealthView TV
3
TV
ON/OFF
CHAN
DOWN
CHAN
UP
(MALE
PLUG)
VOLUME CONTROL
SPKR.
5
1
4
6
2
1
2
3
4
5
6
3
1
5
2
4
6
TV ON/OFF
OPEN
CHAN UP/DATA IN
COMMON
AUDIO OUT
CHAN DOWN
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 is identical to previous Zenith models
using the 5-Wire Interface except that only +7 volts DC was
supplied and current draw was only 2.5 mA.)
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 10-meg resistor
in parallel with a 1100 pf capacitor.
5
Isolated audio output. Nominal 14-ohm source
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
HealthView TV.
3
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.
Summary of Contents for HealthView H20D50DT
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