GE BiliSoft User manual

BiliSoft™ LED
Phototherapy System
Service Manual
GE Healthcare
M1110150 006
Copyright 2007 by General Electric Company.
All rights reserved.

Copyright 2007 by General Electric Company.
All rights reserved. BiliSoft™, BiliBlanket®, and Girae®are registered trademarks of Datex-Ohmeda, Inc.

© 2007 by General Electric Company. All rights reserved. M1110150 006 iii
Table of Contents
About this Manual...................................................................................................................v
Conventions............................................................................................................................................................................ v
Repair Policy .......................................................................................................................................................................... v
Service Manual Language.............................................................................................................................................. vi
Chapter 1: Safety Information............................................................................................. 1
Symbol Denitions...............................................................................................................................................................1
General Safety Information.............................................................................................................................................2
Chapter 2: Functional Description...................................................................................... 3
Chapter 3: Components and User Controls ...................................................................... 5
BiliSoft Light Box...................................................................................................................................................................5
BiliSoft Fiberoptic Light Pad Assembly.......................................................................................................................6
Soft Cover Options (Disposables)..................................................................................................................................7
Chapter 4: Troubleshooting ................................................................................................. 9
Troubleshooting Guide ......................................................................................................................................................9
Chapter 5: Replacement/Checkout Procedures ............................................................. 13
Fuse Replacement............................................................................................................................................................ 13
LED Module Replacement............................................................................................................................................. 14
Air Filter Cleaning/Replacement ................................................................................................................................ 15
Accessing/Replacing Other Internal Components............................................................................................ 16
Checkout Procedures...................................................................................................................................................... 16
Electrical Safety Checkout Procedure........................................................................................................... 17
Light Intensity Checkout Procedure............................................................................................................... 17
Chapter 6: Spare Parts ........................................................................................................ 19
NOTE 1: Service Kit Package for Control PCA............................................................................................ 23
Hardware Kits (sold in packs of 10) ............................................................................................................... 24

iv M1110150 006 © 2007 by General Electric Company. All rights reserved.
Table of Contents
Chapter 7: Accessories ....................................................................................................... 25
Chapter 8: Specications.................................................................................................... 29
Electrical Specications ................................................................................................................................................. 29
Environmental Operating Conditions...................................................................................................................... 29
Storage Requirements.................................................................................................................................................... 29
Performance Specications......................................................................................................................................... 30
Physical Specications ................................................................................................................................................... 30
Regulatory Standards..................................................................................................................................................... 31
Chapter 9: Technical Reference ........................................................................................ 33
EMC Guidance .................................................................................................................................................................... 34
Appendix Additional Safety Information ........................................................................ 39
Statements........................................................................................................................................................................... 39
Symbols ................................................................................................................................................................................. 40
Checkout Procedures...................................................................................................................................................... 40
Specications...................................................................................................................................................................... 40
Warranty

© 2007 by General Electric Company. All rights reserved. M1110150 006 v
About this Manual
Conventions
Various types of pictures or icons are used in this service manual wherever they reinforce the printed message
to alert you to potential safety hazards in one of the following ways:
WARNING:
A WARNING statement is used when the possibility of injury to the patient or the operator exists.
CAUTION:
A CAUTION statement is used when the possibility of damage to the equipment exists.
SENSITIVE TO ELECTROSTATIC DISCHARGE CAUTION
An Electrostatic Discharge (ESD) Susceptibility symbol is displayed to alert service personnel that the
part(s) are sensitive to electrostatic discharge and that static control procedures must be used to
prevent damage to the equipment.
NOTE: A Note provides additional information to clarify a point in the text.
Repair Policy
CAUTION:
The procedures described in this service manual should be performed by trained and authorized
personnel only. Maintenance should only be undertaken by competent individuals who have
a general knowledge of and experience with devices of this nature. No repairs should ever be
undertaken or attempted by anyone not having such qualications. Genuine replacement parts
manufactured or sold by GE Healthcare must be used for all repairs. Read completely through each
step in every procedure before starting the procedure; any exceptions may result in a failure to
properly and safely complete the attempted procedure. After repair, test the equipment to ascertain
that it complies with the published specications.
CAUTION:
This static control precaution symbol appears throughout this manual. When this symbol appears
next to a procedure in this manual, static control precautions MUST be observed. Ensure that static
charges are safely conducted to ground and not through static sensitive devices.

vi M1110150 006 © 2007 by General Electric Company. All rights reserved.
About this Manual
Do not use malfunctioning equipment. If the unit is under warranty, contact GE technical support at the
number on the back of the manual PRIOR to performing any repairs on the unit.
Service Manual Language
(BG)
ПРЕДУПРЕЖДЕНИЕ
Това упътване за работа е налично само на английски език.
• Ако доставчикът на услугата на клиента изиска друг език, задължение на клиента е да
осигури превод.
• Не използвайте оборудването, преди да сте се консултирали и разбрали упътването за
работа.
• Неспазването на това предупреждение може да доведе до нараняване на доставчика
на услугата, оператора или пациентa в резултат на токов удар, механична или друга
опасност.
(ZH-CN)
警告
本维修手册仅提供英文版本。
• 如果客户的维修服务人员需要非英文版本，则客户需自行提供翻译服务。
• 未详细阅读和完全理解本维修手册之前，不得进行维修。
• 忽略本警告可能对维修服务人员、操作人员或患者造成电击、机械伤害或其他形式的伤
害。
(ZH-HK)
警告
本服務手冊僅提供英文版本。
• 倘若客戶的服務供應商需要英文以外之服務手冊，客戶有責任提供翻譯服務。
• 除非已參閱本服務手冊及明白其內容，否則切勿嘗試維修設備。
• 不遵從本警告或會令服務供應商、網絡供應商或病人受到觸電、機械性或其他的危險。
(ZH-TW)
警告
本維修手冊僅有英文版。
• 若客戶的維修廠商需要英文版以外的語言，應由客戶自行提供翻譯服務。
• 請勿試圖維修本設備，除非您已查閱並瞭解本維修手冊。
• 若未留意本警告，可能導致維修廠商、操作員或病患因觸電、機械或其他危險而受傷。

© 2007 by General Electric Company. All rights reserved. M1110150 006 vii
About this Manual
(HR)
UPOZORENJE
Ovaj servisni priručnik dostupan je na engleskom jeziku.
• Ako davatelj usluge klijenta treba neki drugi jezik, klijent je dužan osigurati prijevod.
• Ne pokušavajte servisirati opremu ako niste u potpunosti pročitali i razumjeli ovaj servisni
priručnik.
• Zanemarite li ovo upozorenje, može doći do ozljede davatelja usluge, operatera ili pacijenta
uslijed strujnog udara, mehaničkih ili drugih rizika.
(CS)
VÝSTRAHA
Tento provozní návod existuje pouze v anglickém jazyce.
• V případě, že externí služba zákazníkům potřebuje návod v jiném jazyce, je zajištění překladu
do odpovídajícího jazyka úkolem zákazníka.
• Nesnažte se o údržbu tohoto zařízení, aniž byste si přečetli tento provozní návod a pochopili
jeho obsah.
• V případě nedodržování této výstrahy může dojít k poranění pracovníka prodejního servisu,
obslužného personálu nebo pacientů vlivem elektrického proudu, respektive vlivem
mechanických či jiných rizik.
(DA)
ADVARSEL
Denne servicemanual ndes kun på engelsk.
• Hvis en kundes tekniker har brug for et andet sprog end engelsk, er det kundens ansvar at
sørge for oversættelse.
• Forsøg ikke at servicere udstyret uden at læse og forstå denne servicemanual.
• Manglende overholdelse af denne advarsel kan medføre skade på grund af elektrisk stød,
mekanisk eller anden fare for teknikeren, operatøren eller patienten.
(NL)
WAARSCHUWING
Deze onderhoudshandleiding is enkel in het Engels verkrijgbaar.
• Als het onderhoudspersoneel een andere taal vereist, dan is de klant verantwoordelijk voor de
vertaling ervan.
• Probeer de apparatuur niet te onderhouden alvorens deze onderhoudshandleiding werd
geraadpleegd en begrepen is.
• Indien deze waarschuwing niet wordt opgevolgd, zou het onderhoudspersoneel, de operator
of een patiënt gewond kunnen raken als gevolg van een elektrische schok, mechanische of
andere gevaren.

viii M1110150 006 © 2007 by General Electric Company. All rights reserved.
About this Manual
(EN)
WARNING:
This service manual is available in English only.
• If a customer’s service provider requires a language other than English, it is the customer’s
responsibility to provide translation services.
• Do not attempt to service the equipment unless this service manual has been consulted and is
understood.
• Failure to heed this warning may result in injury to the service provider, operator, or patient
from electric shock, mechanical hazards, or other hazards.
(ET)
HOIATUS
See teenindusjuhend on saadaval ainult inglise keeles
• Kui klienditeeninduse osutaja nõuab juhendit inglise keelest erinevas keeles, vastutab klient
tõlketeenuse osutamise eest.
• Ärge üritage seadmeid teenindada enne eelnevalt käesoleva teenindusjuhendiga tutvumist ja
sellest aru saamist.
• Käesoleva hoiatuse eiramine võib põhjustada teenuseosutaja, operaatori või patsiendi
vigastamist elektrilöögi, mehaanilise või muu ohu tagajärjel.
(FI)
VAROITUS
Tämä huolto-ohje on saatavilla vain englanniksi.
• Jos asiakkaan huoltohenkilöstö vaatii muuta kuin englanninkielistä materiaalia, tarvittavan
käännöksen hankkiminen on asiakkaan vastuulla.
• Älä yritä korjata laitteistoa ennen kuin olet varmasti lukenut ja ymmärtänyt tämän huolto-
ohjeen.
• Mikäli tätä varoitusta ei noudateta, seurauksena voi olla huoltohenkilöstön, laitteiston
käyttäjän tai potilaan vahingoittuminen sähköiskun, mekaanisen vian tai muun vaaratilanteen
vuoksi.
(FR)
ATTENTION
Ce manuel d’installation et de maintenance est disponible uniquement en anglais.
• Si le technicien d’un client a besoin de ce manuel dans une langue autre que l’anglais, il
incombe au client de le faire traduire.
• Ne pas tenter d’intervenir sur les équipements tant que ce manuel d’installation et de
maintenance n’a pas été consulté et compris.
• Le non-respect de cet avertissement peut entraîner chez le technicien, l’opérateur ou le patient
des blessures dues à des dangers électriques, mécaniques ou autres.

© 2007 by General Electric Company. All rights reserved. M1110150 006 ix
About this Manual
(DE)
WARNUNG
Diese Serviceanleitung existiert nur in englischer Sprache.
• Falls ein fremder Kundendienst eine andere Sprache benötigt, ist es Aufgabe des Kunden für
eine entsprechende Übersetzung zu sorgen.
• Versuchen Sie nicht diese Anlage zu warten, ohne diese Serviceanleitung gelesen und
verstanden zu haben.
• Wird diese Warnung nicht beachtet, so kann es zu Verletzungen des Kundendiensttechnikers,
des Bedieners oder des Patienten durch Stromschläge, mechanische oder sonstige Gefahren
kommen.
(EL)
ΠΡΟΕΙΔΟΠΟΙΗΣΗ
Το παρόν εγχειρίδιο σέρβις διατίθεται μόνο στα αγγλικά.
• Εάν ο τεχνικός σέρβις ενός πελάτη απαιτεί το παρόν εγχειρίδιο σε γλώσσα εκτός των
αγγλικών, αποτελεί ευθύνη του πελάτη να παρέχει τις υπηρεσίες μετάφρασης.
• Μην επιχειρήσετε την εκτέλεση εργασιών σέρβις στον εξοπλισμό αν δεν έχετε συμβουλευτεί
και κατανοήσει το παρόν εγχειρίδιο σέρβις.
• Αν δεν προσέξετε την προειδοποίηση αυτή, ενδέχεται να προκληθεί τραυματισμός στον
τεχνικό σέρβις, στο χειριστή ή στον ασθενή από ηλεκτροπληξία, μηχανικούς ή άλλους
κινδύνους.
(HU)
FIGYELMEZTETÉS
Ezen karbantartási kézikönyv kizárólag angol nyelven érhető el.
• Ha a vevő szolgáltatója angoltól eltérő nyelvre tart igényt, akkor a vevő felelőssége a fordítás
elkészíttetése.
• Ne próbálja elkezdeni használni a berendezést, amíg a karbantartási kézikönyvben leírtakat
nem értelmezték.
• Ezen gyelmeztetés gyelmen kívül hagyása a szolgáltató, működtető vagy a beteg áramütés,
mechanikai vagy egyéb veszélyhelyzet miatti sérülését eredményezheti.
(IS)
AÐVÖRUN
Þessi þjónustuhandbók er aðeins fáanleg á ensku.
• Ef að þjónustuveitandi viðskiptamanns þarfnast annas tungumáls en ensku, er það skylda
viðskiptamanns að skaa tungumálaþjónustu.
• Reynið ekki að afgreiða tækið nema að þessi þjónustuhandbók hefur verið skoðuð og skilin.
• Brot á sinna þessari aðvörun getur leitt til meiðsla á þjónustuveitanda, stjórnanda eða sjúklings
frá raosti, vélrænu eða öðrum áhættum.

x M1110150 006 © 2007 by General Electric Company. All rights reserved.
About this Manual
(IT)
AVVERTENZA
Il presente manuale di manutenzione è disponibile soltanto in lingua inglese.
• Se un addetto alla manutenzione richiede il manuale in una lingua diversa, il cliente è tenuto a
provvedere direttamente alla traduzione.
• Procedere alla manutenzione dell’apparecchiatura solo dopo aver consultato il presente
manuale ed averne compreso il contenuto.
• Il mancato rispetto della presente avvertenza potrebbe causare lesioni all’addetto alla
manutenzione, all’operatore o ai pazienti provocate da scosse elettriche, urti meccanici o altri
rischi.
(JA)
このサービスマニュアルには英語版しかありません。
• サービスを担当される業者が英語以外の言語を要求される場合、翻訳作業はその業者の
責任で行うものとさせていただきます。
• このサービスマニュアルを熟読し理解せずに、装置のサービスを行わないでください。
• この警告に従わない場合、サービスを担当される方、操作員あるいは患者さんが、感電
や機械的又はその他の危険により負傷する可能性があります。
(KO)
경고
본 서비스 매뉴얼은 영어로만 이용하실 수 있습니다.
• 고객의 서비스 제공자가 영어 이외의 언어를 요구할 경우, 번역 서비스를 제공하는 것은
고객의 책임입니다.
• 본 서비스 매뉴얼을 참조하여 숙지하지 않은 이상 해당 장비를 수리하려고 시도하지
마십시오.
• 본 경고 사항에 유의하지 않으면 전기 쇼크, 기계적 위험, 또는 기타 위험으로 인해
서비스 제공자, 사용자 또는 환자에게 부상을 입힐 수 있습니다.
(LV)
BRĪDINĀJUMS
Šī apkopes rokasgrāmata ir pieejama tikai angļu valodā.
• Ja klienta apkopes sniedzējam nepieciešama informācija citā valodā, klienta pienākums ir
nodrošināt tulkojumu.
• Neveiciet aprīkojuma apkopi bez apkopes rokasgrāmatas izlasīšanas un saprašanas.
• Šī brīdinājuma neievērošanas rezultātā var rasties elektriskās strāvas trieciena, mehānisku vai
citu faktoru izraisītu traumu risks apkopes sniedzējam, operatoram vai pacientam.

© 2007 by General Electric Company. All rights reserved. M1110150 006 xi
About this Manual
(LT)
ĮSPĖJIMAS
Šis eksploatavimo vadovas yra tik anglų kalba.
• Jei kliento paslaugų tiekėjas reikalauja vadovo kita kalba – ne anglų, suteikti vertimo paslaugas
privalo klientas.
• Nemėginkite atlikti įrangos techninės priežiūros, jei neperskaitėte ar nesupratote šio
eksploatavimo vadovo.
• Jei nepaisysite šio įspėjimo, galimi paslaugų tiekėjo, operatoriaus ar paciento sužalojimai dėl
elektros šoko, mechaninių ar kitų pavojų.
(NO)
ADVARSEL
Denne servicehåndboken nnes bare på engelsk.
• Hvis kundens serviceleverandør har bruk for et annet språk, er det kundens ansvar å sørge for
oversettelse.
• Ikke forsøk å reparere utstyret uten at denne servicehåndboken er lest og forstått.
• Manglende hensyn til denne advarselen kan føre til at serviceleverandøren, operatøren eller
pasienten skades på grunn av elektrisk støt, mekaniske eller andre farer.
(PL)
OSTRZEŻENIE
Niniejszy podręcznik serwisowy dostępny jest jedynie w języku angielskim.
• Jeśli serwisant klienta wymaga języka innego niż angielski, zapewnienie usługi tłumaczenia
jest obowiązkiem klienta.
• Nie próbować serwisować urządzenia bez zapoznania się z niniejszym podręcznikiem
serwisowym i zrozumienia go.
• Niezastosowanie się do tego ostrzeżenia może doprowadzić do obrażeń serwisanta, operatora
lub pacjenta w wyniku porażenia prądem elektrycznym, zagrożenia mechanicznego bądź
innego.
(PT-BR)
AVISO
Este manual de assistência técnica encontra-se disponível unicamente em inglês.
• Se outro serviço de assistência técnica solicitar a tradução deste manual, caberá ao cliente
fornecer os serviços de tradução.
• Não tente reparar o equipamento sem ter consultado e compreendido este manual de
assistência técnica.
• A não observância deste aviso pode ocasionar ferimentos no técnico, operador ou paciente
decorrentes de choques elétricos, mecânicos ou outros.

xii M1110150 006 © 2007 by General Electric Company. All rights reserved.
About this Manual
(PT-PT)
ATENÇÃO
Este manual de assistência técnica só se encontra disponível em inglês.
• Se qualquer outro serviço de assistência técnica solicitar este manual noutro idioma, é da
responsabilidade do cliente fornecer os serviços de tradução.
• Não tente reparar o equipamento sem ter consultado e compreendido este manual de
assistência técnica.
• O não cumprimento deste aviso pode colocar em perigo a segurança do técnico, do operador
ou do paciente devido a choques eléctricos, mecânicos ou outros.
(RO)
ATENŢIE
Acest manual de service este disponibil doar în limba engleză.
• Dacă un furnizor de servicii pentru clienţi necesită o altă limbă decât cea engleză, este de
datoria clientului să furnizeze o traducere.
• Nu încercaţi să reparaţi echipamentul decât ulterior consultării şi înţelegerii acestui manual de
service.
• Ignorarea acestui avertisment ar putea duce la rănirea depanatorului, operatorului sau
pacientului în urma pericolelor de electrocutare, mecanice sau de altă natură.
(RU)
ОСТОРОЖНО!
Данное руководство по техническому обслуживанию представлено только на английском
языке.
• Если сервисному персоналу клиента необходимо руководство не на английском, а на
каком-то другом языке, клиенту следует самостоятельно обеспечить перевод.
• Перед техническим обслуживанием оборудования обязательно обратитесь к данному
руководству и поймите изложенные в нем сведения.
• Несоблюдение требований данного предупреждения может привести к тому, что
специалист по техобслуживанию, оператор или пациент получит удар электрическим
током, механическую травму или другое повреждение.
(SR)
UPOZORENJE
Ovo servisno uputstvo je dostupno samo na engleskom jeziku.
• Ako klijentov serviser zahteva neki drugi jezik, klijent je dužan da obezbedi prevodilačke usluge.
• Ne pokušavajte da opravite uređaj ako niste pročitali i razumeli ovo servisno uputstvo.
• Zanemarivanje ovog upozorenja može dovesti do povređivanja servisera, rukovaoca ili
pacijenta usled strujnog udara ili mehaničkih i drugih opasnosti.

© 2007 by General Electric Company. All rights reserved. M1110150 006 xiii
About this Manual
(SK)
UPOZORNENIE
Tento návod na obsluhu je k dispozícii len v angličtine.
• Ak zákazníkov poskytovateľ služieb vyžaduje iný jazyk ako angličtinu, poskytnutie
prekladateľských služieb je zodpovednosťou zákazníka.
• Nepokúšajte sa o obsluhu zariadenia, kým si neprečítate návod na obluhu a neporozumiete
mu.
• Zanedbanie tohto upozornenia môže spôsobiť zranenie poskytovateľa služieb, obsluhujúcej
osoby alebo pacienta elektrickým prúdom, mechanické alebo iné ohrozenie.
(ES)
ATENCION
Este manual de servicio sólo existe en inglés.
• Si el encargado de mantenimiento de un cliente necesita un idioma que no sea el inglés, el
cliente deberá encargarse de la traducción del manual.
• No se deberá dar servicio técnico al equipo, sin haber consultado y comprendido este manual
de servicio.
• La no observancia del presente aviso puede dar lugar a que el proveedor de servicios, el
operador o el paciente sufran lesiones provocadas por causas eléctricas, mecánicas o de otra
naturaleza.
(SV)
VARNING
Den här servicehandboken nns bara tillgänglig på engelska.
• Om en kunds servicetekniker har behov av ett annat språk än engelska, ansvarar kunden för
att tillhandahålla översättningstjänster.
• Försök inte utföra service på utrustningen om du inte har läst och förstår den här
servicehandboken.
• Om du inte tar hänsyn till den här varningen kan det resultera i skador på serviceteknikern,
operatören eller patienten till följd av elektriska stötar, mekaniska faror eller andra faror.
(SL)
OPOZORILO
Ta servisni priročnik je na voljo samo v angleškem jeziku.·
• Če ponudnik storitve stranke potrebuje priročnik v drugem jeziku, mora stranka zagotoviti
prevod.·
• Ne poskušajte servisirati opreme, če tega priročnika niste v celoti prebrali in razumeli.·
• Če tega opozorila ne upoštevate, se lahko zaradi električnega udara, mehanskih ali drugih
nevarnosti poškoduje ponudnik storitev, operater ali bolnik.

xiv M1110150 006 © 2007 by General Electric Company. All rights reserved.
About this Manual
(TR)
DİKKAT
Bu servis kılavuzunun sadece ingilizcesi mevcuttur.
• Eğer müşteri teknisyeni bu kılavuzu ingilizce dışında bir başka lisandan talep ederse, bunu
tercüme ettirmek müşteriye düşer.
• Servis kılavuzunu okuyup anlamadan ekipmanlara müdahale etmeyiniz.
• Bu uyarıya uyulmaması, elektrik, mekanik veya diğer tehlikelerden dolayı teknisyen, operatör
veya hastanın yaralanmasına yol açabilir.

© 2007 by General Electric Company. All rights reserved. M1110150 006 1
Chapter 1: Safety Information
Symbol Denitions
This section identies the symbols that are displayed on the BiliSoft unit:
Symbol Description
~Indicates alternating current.
Indicates IEC Type B equipment.
TThis letter appearing before a fuselink value indicates a time delay fuselink.
Cover patient’s eyes during phototherapy.
On/O Standby Switch
Unit overheated indicator
Hour meter
LED failure indicator
Do not spray cleaner directly onto the beroptic lenses. The beroptic lenses require special cleaning
methods. See cleaning section of this manual for complete details.
See the Operation Manual for more information.
European Union Representative
Manufacturer

2 M1110150 006 © 2007 by General Electric Company. All rights reserved.
Chapter 1: Safety Information
Symbol Description
ETL symbol
CE mark
WEEE symbol
Ground/Earthing
General Safety Information
WARNING:
Side Eects: Looking at light emitted by any phototherapy device for prolonged periods may cause
side eects, such as headache, nausea, or mild vertigo.
WARNING:
Flammable Solutions: Never use ammable solutions to clean the BiliSoft LED Phototherapy
System or any of its parts.
CAUTION
Medical Electrical Equipment needs special precautions regarding EMC and needs to be installed and put into
service according to the EMC information provided in the service manual.
Portable and mobile RF communications equipment can aect Medical Electrical Equipment.
The BiliSoft LED Phototherapy System should not be used adjacent to or be stacked on other equipment.
If adjacent or stacked use is necessary, the BiliSoft LED Phototherapy System should be observed to verify
normal operation in the conguration in which it will be used.

© 2007 by General Electric Company. All rights reserved. M1110150 006 3
Chapter 2: Functional Description
AC power is fused and ltered by the EMI Filter before it is converted to 12V DC by the Power Supply and
delivered to the Control PCB. The Control PCB consists of three identical buck regulator circuits that are
congured as constant voltage/constant current sources with the ability to adjust the constant current source
output to the LED’s. The Control PCB drives three pairs of LED’s on the LED PCB and the 12V fan. The LED PCB is
only enabled when power is supplied, the Standby Switch is “On”, the Pad Shutter Switch is closed and the
solid-state thermostat on the LED PCB is not tripped. When the solid-state thermostat on the LED PCB is
tripped, the fan still gets 12V to help cool the box. The Control PCB also delivers 12V to the Standby Switch
lamp. When the LED current sensor on the Control PCB detects that at least one pair of LED’s is not working
properly, the LED module failure indicator on the Front PCB blinks. When the thermostat on the LED PCB is
tripped, the unit overheated indicator on the Front PCB lights. Whenever power to the LED PCB is “enabled”, the
hour meter gets the signal to count hours. See the schematic on the following page for more detail.
EMI Filter
2 Fuses
AC 110 - 240V
Power Supply
Output DC
12V 5A
Chassis
Ground
Control PCB
Stand By
Switch
12V Lamp
Pad
Shutter
Switch
Front PCB
Hour Meter
LED Indicators
6 LED PCB
T-Stat
Fan 12V
J2
3 LED
Current
Drivers
750mA 1.5A
Fan
12v
LED Current
Sencer
Over Temp
Sencer
J2
J1
J1
J5
J4
J3
Enable
J2
J1
J1

4 M1110150 006 © 2007 by General Electric Company. All rights reserved.
Chapter 2: Functional Description

© 2007 by General Electric Company. All rights reserved. M1110150 006 5
Chapter 3: Components and User Controls
BiliSoft Light Box
The light box contains the LED module, a power supply, a cooling system, and an overheating protection. The
universal power supply allows the unit to be supplied via any standard AC main power source at either 50 or
60 Hertz that has voltages in the range of 90 to 264 V~. The LED module produces a very narrow bandwidth of
light with no appreciable amount of ultraviolet or infrared light. The light box is cooled by a fan, and a thermal
cutout switch located on the LED module protects the light box from overheating. The LED module in the light
box is activated only when the ber optic cable is plugged into the system.
Component/Control Function
1. Standby Switch – Turns the unit on/o. The green
light on the switch indicates that the standby switch
is turned on and the unit is powered.
2. Hour Meter – The non-resettable hour meter runs
whenever the beroptic light pad is illuminated. If
the beroptic cable is not fully inserted into the light
box, the LEDs are automatically shut o and the hour
meter does not run.
3. Unit Overheated Indicator – When the red
indicator light is on, the unit has overheated. See
Troubleshooting Guide for more details.
4. LED Module Failure Indicator – When the red
indicator light ashes, at least one of the three LED
pairs has failed. See the Troubleshooting Guide for
more details.
5. Fiberoptic Light Pad Assembly Port - Where the
beroptic light pad assembly connects to the
main unit. An LED shuto switch inside the port
automatically shuts o the LED module whenever the
beroptic light pad assembly is disconnected.
6. Air Vents – For proper cooling it is important to keep
the air vents clear of obstruction.

6 M1110150 006 © 2007 by General Electric Company. All rights reserved.
Chapter 3: Components and User Controls
Component/Control Function
7. Air Filter – For proper cooling it is important to keep
the air lter clear of obstruction. See the maintenance
section of this manual for more details.
8. Power Cord Receptacle
9. Fuse Cover - Houses two power inlet fuses
10. Mounting Bracket Holes – Four holes on the bottom
of the main unit are used to attach the optional
mounting bracket. The mounting bracket can be
positioned on the left or right side of the light box.
BiliSoft Fiberoptic Light Pad Assembly
The beroptic light pad comes in two sizes – large and small. The LED light source in the BiliSoft light box is
focused on the beroptic lenses at the end of the beroptic cable connector. The beroptic cable contains
plastic bers that transmit light from the light box to the light pad. The light pad is constructed of these plastic
bers woven into a mat. This patented process produces a light pad that emits light over its entire surface.
Average light intensity depends on the size of the light pad. See Specications section for more details.
Component/Control
1. Fiberoptic light pad
2. Fiberoptic cable connector
3. Fiberoptic lenses
4. Fiberoptic cable