Panasonic PT-L711E Manuale utente

ORDERNO. VED0008301C0

D10

LCD Projector

PT-L711E/ PT-L711U / PT-L701E/ PT-L701U / PT-L501E/ PT-

L501U / PT-L1711 / PT-L1701 / PT-L1501

SPECIFICATIONS

MC-Service

Unauthorizedcopying and distribution isaviolation oflaw.

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.

MC-Service

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

-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)

Fig. 3

2. Operating Instructions

3. Self-Check Mode

Thismodeisusedtonarrowdownthelocation ofthefailure.

3.1. Proceduretoentertheself-check mode

Whilepressing theVOLUME "—" button on theremotecontrol unit, press theleft-arrow" "

button on themainunit3secondsor longer.

3.2. Self-Check Displayand Contents

MC-Service

3.3. Canceling theself-check mode

Press theMENU button on themainunitor theremotecontrol unit.

4. Service Mode

Thismodeisusedtodisplay three kindsoftestpatterns(Crosshatch, FlickerAdjustmentand

White)inthefour colors(White, Red, Greenand Blue).

4.1. Proceduretoentertheservice mode

1. Select "FRONT/REAR"on theOPTIONmenu.

MENU OPTIONFRONT/REAR

2. Whilepressing theVOLUME"+"button on theremote control unit,

press theleft-arrow " "button on themainunit3secondsor

longertoentertheservice mode.

3. Intheservice mode, pressing theup-arrow " "ordown-arrow "

"button on theremote control unitallowsthetest pattern

selection [Horizontal Lines / Vertical Lines / Dots / White (No

pattern)] and theleft-arrow " "orright-arrow " "button the

colorselection (White / Red/ Green/ Blue).

4.2. Canceling theservice mode

Press theMENU button on themainunitor theremotecontrol unit.

5. DisassemblyInstructions

Warning:

-Besuretounplug thepowercordfromthepoweroutlet before

disassembling thisprojector.

Caution:

-Whileturning overaprintedcircuitboard, besuretoputa

insulating material underittopreventashortcircuit.

-Printedcircuitboardsand wires must notbepulledforcibly, butbe

handledcarefully.

-Connectorsalsomust behandledcarefully.

-Afterrepairing thisprojector, besuretoputback thewires and

connectorstotheoriginal condition.

5.1. PrintedCircuitBoardand MainParts Location

Electrical Parts

Optical Parts

5.2. Removal ofUpperCover

1. Turnover(upsidedown)themainunitand unscrew the5screws

fixing theuppercover.

MC-Service

2. Returnthemainunittothenormal position and extend the

carrying handle.

3. Unscrew the2screws.

4. Lift theuppercoverand disconnect the2connectorsfromthe

speakers.

5.3. Removal ofA-Module

Notes:

-Ifreplacing A-Module, readthemicrocomputerand gammadata

fromtheoldmoduleand write itinthenew oneaccording tothe

section 6.5. "SoftwareforAdjustment". (Ifnot, removeIC1041 and

IC1036 fromtheoldmoduleand replace themon thenew module.)

-Ifreplacing A-Module, adjust theInputLevel according tothe

chapter6"Measurementand Adjustments".

1. Removetheuppercoveraccording tothesection 5.2. "Removal of

UpperCover".

2. Openthecardremote control unitholder.

3. Unscrew the2screwsfixing theconnectorpanel.

4. Disconnect theconnectorsfrom/totheA-Module.

5. Unscrew the5screwsand removetheA-Module.

5.4. Removal ofZ3-P.C.Board

1. Removetheuppercoveraccording tothesection 5.2. "Removal of

UpperCover".

2. RemovetheA-Moduleaccording tothesection 5.3. "Removal ofA-

Module".

3. Unscrew the1screw fixing theZ3-P.C.Board.

4. Disconnect theconnectorand removetheZ3-P.C.Board.

5.5. Removal ofK-P.C.Board

1. Removetheuppercoveraccording tothesection 5.2. "Removal of

UpperCover".

MC-Service

2. RemovetheA-Moduleaccording tothesection 5.3. "Removal ofA-

Module".

3. Unscrew the1screw and removetheconnectorpanel.

4. Unscrew the2screwsfixing theK-P.C.Boardunit.

5. Disconnect theconnectorand removetheK-P.C.Boardunit.

6. Removethebarrierforinsulation.

Note:

-Aboveprocedure(steps1-6) becomes possibletoreplace

components oftheK-P.C.Board.

7. Unscrew the2screwsfixing theK-P.C.Board.

8. Unsolderterminalsofthepowerinputsocket (ACIN).

9. UnsolderterminalsoftheMAINPOWERswitchand removetheK-

P.C.Board.

5.6. Removal ofZ2-P.C.Board

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