Panasonic PTL720U - LCD PROJECTOR User manual

ORDERNO. VED0206331C0

D10

LCD Projector

PT-L720U / PT-L720E/ PT-L520U / PT-L520E

SPECIFICATIONS

Please refer to theOperating Instructionsin theappendix

folder. / (Go to Appendix List)

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.

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. 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

-FREEZEMSG

Switching ON/OFF "FREEZE"on-screendisplay

-ANGLERESET

Switching ON/OFF "AUTO KEYSTN(AutomaticKeystone)"

reference level setting

Note:

-Normally, do notselect. (Anglereset data will berewritten.)

-FANFULLMODE

Switching ON"FANFULLMODE", therotation level ofthefan

becomes high-speedrotation (fixed). Moreover, when"FAN

FULLMODE"isON, changing "FANCONTROL"inOPTION2

becomes impossible(setting FANFULLMODEisgivenpriority

morethanFANCONTROL).

Caution:

-Switching ON"FANFULLMODE"whileusedusually(at anelevation

oflowerthan1400 m), thismaycause malfunctions.

-AUTOSETUP

Setting AUTO SETUPmode

-STANDARD:To set thenormal mode(thedotclock isadjusted

strictly))

-SPECIAL:To set thespecial mode(thedotclock isadjusted

roughly)

-SELF CHECK

To entertheself-check mode

-SERVICEMODE

To entertheservice mode

2.3. Canceling EXTOPTION

Press "MENU" button on themainunitor remotecontrol unit.

3. Self-Check Mode

Thismodeisusedtonarrowdownthelocation ofthefailure.

3.1. Proceduretoentertheself-check mode

Select"SELF CHECK" on "EXTOPTION" menu and press "ENTER" button on themainunitor

remotecontrol unit.

3.2. SelfCheck Displayand Contents

3.3. Canceling theself-check mode

Press "MENU" button on themainunitor remotecontrol unit.

4. Service Mode

Thismodeisusedtodisplay five kindsoftestpatterns[Horizontal lines, Vertical lines, Dots,

Crosshatchand White(Nopattern)] inthefour colors(White, Red, Greenand Blue).

Note:

-Ontheservice mode, displaysabovepatternsbyeachcolorwithout

test equipmentsuchas PCorSG. Use theservice modefor

simplifiedadjustments byyoureyes and soon.

4.1. Proceduretoentertheservice mode

Select"SERVICE MODE" on "EXTOPTION" menu and press "ENTER" button on themainunitor

remotecontrol unit.

Note:

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

"button allowsthetest patternselection and theleft-arrow " "or

right-arrow " "button thecolorselection (White / Red/ Green/

Blue).

4.2. Canceling theservice mode

Press "MENU" button on themainunitor remotecontrol unit.

5. Using the SERIALConnector

Theserial connector whichison thesideconnector panel oftheprojector conformstoRS-232C

standard. Thisprojector canbecontrolledbyaPCwhichisconnectedas shownin"5.1.

Connection". For controlling thisprojector byaPC, requires communication softwareon the

market, and inputscontrol commandsaccording tocommunication settingsand basicformat

below.

5.1. Connection

Note:

Use apropercommunication cablewhichissuitablefor thePCtoconnectSERIALconnector and

thePC.

5.2. PinLayoutand Signal Names forSERIALConnector

PinNo Signal Name Contents

1 --- NC

2TXD Transmitdata

3 RXD Receive data

4 --- NC

5GND Ground

6DSR

7CTS Connectedinternally

8RTS

9--- NC

5.3. Communication Settings

Signal Level Contents Description

Sync. method Asynchronous Synchronizes every1

character

bits)

Baud rate Conforms

to 9600 bps Datatransferspeed

Parity RS-232C None Error detection method

Characterlength standard 8bits Numberofbitcomposing 1

character

Stop bit 1bit Uses stop bitwhen

asynchronous

method

X parameter Notused

S parameter Notused

5.4. BasicFormat

Thedatasentfrom thePCtotheprojector istransmittedintheformatshownbelow.

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