Panasonic PTLC75U - LCD PROJECTOR User manual

ORDERNO. VED0112327C0
D10
LCD Projector
PT-LC75U / PT-LC75E/ PT-LC55U / PT-LC55E/ PT-U1X65 /
PT-U1S65
SPECIFICATIONS
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2001 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorizedcopying and distribution isaviolation oflaw.
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1. SafetyPrecautions
1.1. General Guidelines
-Forcontinuedsafety, no modification ofanycircuitmust be
attempted.
-Unplug thepowercordfromthepoweroutlet beforedisassembling
thisprojector.
-Itisadvisabletouse anisolation transformerintheACpowerline
beforetheservice.
-Observetheoriginal leaddress during theservice. Ifashortcircuit
isfound, replace all theparts overheatedordamagedbytheshort
circuit.
-Aftertheservice, all theprotectivedevices suchas insulation
barriers, insulation papers, shields, and isolation R-C
combinationsmust beproperlyinstalled.
-Aftertheservice, check theleakagecurrenttopreventthe
customerfromgetting anelectricshock.
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1.2. LeakageCurrentCheck
1. Preparethemeasuring circuitas showninFig.1.
Besuretouse avoltmeterhaving theperformance describedin
Table1. Fig. 1
Table1
Fig. 2
2. Assemblethecircuitas showninFig. 2. Plug thepowercordina
poweroutlet.
3. Connect M1toT1according toFig. 2and measurethevoltage.
4. Changetheconnection ofM1fromT1toT2and measurethe
voltageagain.
5. Thevoltmetermust read0.375 Vorlowerinbothofsteps3and 4.
Thismeansthat thecurrentmust be0.75 mAorless.
6. Ifthereading isoutoftheabovestandard, theprojectormust be
repairedand recheckedbeforereturning tothecustomerbecause
ofapossibilityofanelectricshock.
1.3. UVPrecaution and UHMLampPrecautions
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-Besuretounplug thepowercordfromthepoweroutlet when
replacing thelamp.
-Because thelampreaches averyhigh temperatureduring its
operation, waituntil itcoolscompletelywhenreplacing theLamp
Unit.
-Thelampemits small amounts ofUV-radiation, avoiddirect-eye
contact withthelight.
-Because thehigh pressurelampinvolves arisk ofexplosion, never
touchthelampwireleadduring theservice. (See Fig. 3)
2. Ext Option
Thisprojector has EXTOPTIONinaddition tostandard on-screenmenus.
-ThereareSELF CHECK and SERVICEMODEforservice, etc.
2.1. ProceduretoenterEXTOPTION
1. Press "MENU"button on themainunitorremote control unitto
display"MENU"screen, thenselect "OPTION1"and press
"ENTER"button.
2. Select "OSD"on "OPTION1"menu and press "ENTER"button 3
secondsorlonger.
MENU OPTION1OSD
2.2. EXTOPTIONMenu and Functions
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