EXTERNAL EQUIPMENT SETUP

PILLOW SPEAKER SETUP

Here shown may be somewhat different from your TV.

EXTERNAL EQUIPMENT

1. How to connect

Connect the PILLOW JACK IN the Pillow Speaker output

1jack on the back of the TV.

Connect an accessory pillow speaker or wired remote

2control unit to this 6-pin jack.

3 Select PILLOW SPEAKER on the rear panel of the TV.

SETUP

*Note: If the pillow Speaker switch is set to Pillow Speaker, no sound will be heard from the TV speakers. If pillow speaker switch is set to the Pillow Speaker position, Auto Volume will be grayed out and not accessible on the Sound menu.

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.”

Pillow speaker not included with TV.

Controlling the TV with Serial Data

The TV is capable of being controlled by a single-wire,

serial data signal. This is a LG 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 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.

 

 

 

 

 

 

 

 

 

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 8mA when a switch is closed. (This operation is identical to previous LG models using the 5-Wire Interface except that only +7 volts DC was supplied and current draw was only 2.5 mA.)

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LG Electronics 20LH1DC1 manual Pillow Speaker Setup, Keep pendant control away from oxygen equipment

20LH1DC1 specifications

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