Zenith HW20H52DT, H20H52DT Pillow Speaker Hook Up, Connect a Pillow Speaker to the HealthView TV

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.
2	Connect an accessory pillow speaker or
	wired remote control unit to this 6-pin
	jack.

TV Back

ANTENNA

Select PILLOW SPKR on the rear panel

3

CABLE

TV SPEAKER

VIDEO IN SPEAKER OUT

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

TV

M.P.I. PILLOW SPEAKER

AUDIO IN

TV Back Panel

(Expanded View)

Pillow speaker not included with HealtView TV.

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.

		4
SPKR.		5
		6	3
		1
		2
VOLUME CONTROL			(MALE
			PLUG)
TV	CHAN	CHAN
ON/OFF	DOWN	UP

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).

Impedance to earth ground is a 8.2- meg resistor

in parallel with a 1000 pf capacitor.

Isolated audio output. Nominal 14-ohm source

4

5

1

2

TV ON/OFF

OPEN

5	impedance with short circuit protection. Intended
	for a pillow speaker with a low-impedance pad-type
	volume control.
6	External Channel Down switch

633

1 4

2

5

CHAN UP/DATA IN

COMMON

AUDIO OUT

6 CHAN DOWN

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