Panasonic PT-VW435NE, PT-VW435NEA, PT-VW435NU, PT-VX505NE, PT-VX505NEA, PT-VX505NU, PTVW435NU Circuit Protections

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Lamp cover switch (SW901)

The lamp cover switch (SW901) cuts off the drive signal to the lamp

circuit when the lamp cover is removed or not closed completely.

After opening the lamp cover for replacing the lamp assy, place the

lamp cover correctly otherwise the projector can not turn on.

Thermal fuse (SW902)

There is a thermal fuse (SW902) inside of the projector to detect the

internal temperature rising abnormally. When the internal tempera-

ture around lamp reaches near 113˚C, the thermal fuse will open to

cut off the power supply to the lamp power circuit.

If the thermal fuse opens, the projector cannot turn on. Thermal

fuse replacement is required.

This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro-

jector, it will automatically turn off by operating one of the following protection circuits.

Fuse

(F601)

Circuit Protections

Fuse (F601)

A fuse is located inside of the projector. When the ON(G)/

STANDBY(R) indicator is not lighting, the fuse may be opened.

Check the fuse as following steps.

The fuse should be used with the following type;

Fuse Part No.: 423 035 3004

TYPE T8AH 250V FUSE

LITTEL FUSE INC. TYPE 0215008.MXEP

or

How to replace the fuse

1. The fuse is placed on the AC 1ST FILTER board. Remove the

cabinet top, MAIN&AV board following the "Mechanical Disas-

sembly" .

2. Take the fuse off , and replace the old one with the specified

type.

Fuse Part No, : 424 007 3909

TYPE 8AH 250V FUSE

SKY-GATE, Ltd. TYPE SG5013008P-R

Thermal fuse

(SW902)

Lamp cover switch

(SW901)

Contents

Main Contents Safety Instructions CAUTION About lead free solder (PbF) Precaution WARNING 1. Safety Precautions Safety precautions 1.1. General Guidelines 1.2. Leakage Current Check 1.3. UV Precaution and UHM Lamp Precautions Specifications Specifications Lamp cover switch (SW901) Thermal fuse (SW902) Circuit Protections Fuse (F601) Fuse Part No.: 423 035 3004 TYPE T8AH 250V FUSE LITTEL FUSE INC. TYPE 0215008.MXEP Fuse Part No, : 424 007 3909 TYPE 8AH 250V FUSE SKY-GATE, Ltd. TYPE SG5013008P-R Circuit Protections Warning temperature and power failure protection The projector is shut down and the WARNING indicator is blinking red. The projector is shut down and the WARNING indicator lights red. LED indicator Maintenance n Outer Case n Front glass surface of the lens Before replacing the unit Maintenance n Resetting the filter counter n Attaching the lens cap Thread the thinner end of the string through 1 1 Thread the other end of the string through 2 1 the hole on the bottom of the projector. Lens cap String n Lamp unit n Notes on the replacement of the lamp unit * n When to replace the lamp unit Replacing the lamp unit T T Warning message on the non-standard lamp used 1 2 How to check lamp runtime Cleaning Cleaning the projection lens Cleaning the projector cabinet Cleaning with air spray Disassembly Cleaning Security Function Notice Resetting procedure Standby Mode Notice Mechanical Disassembly Mechanical disassembling flow chart 1. Air filter units removal 2. Cabinet top removal Fig.2 Fig.3 3. MAIN&AV board assy removal 3-1. MAIN and AV board removal Fig.3-1 Fig.4 4. Fan(FN910), lamp assy(LP900),optical unit removal 5. Fan(FN908), lamp holder , speaker removal Fig.5 Page Fig.6 6. Power box assy removal 7. Fan(FN907) and duct assy removal Fig.7 Fig.7-1 7-1. Duct and fans removal 8. Fan(FN902) and filter house removal Fig.8 9. Cable reforming Fig.9 Optical Parts Disassembly 1. LCD panel/prism assy removal How to check the type of LCD panel assy LCD panel type check GR GL 2. Polarized glass(IN) assy removal Fig.2 Fig.3 3. Projection lens removal Optical Parts Disassembly 5. PBS and Integrators removal Fig.4 Fig.5 4. Condenser lens (OUT) removal Page Page Servicing Notice Note on the MAIN board replacement 1.EEPROM data transfer Serial number setting Model no. setting 2. Adjustment data setting Servicing Notice 3. EDID IC replacement Adjustments Adjustments after parts replacement Optical Adjustments Contrast adjustment 1 2 3 A Optical center adjustment Service adjustment menu operation To enter the service mode To adjust service data To exit the service mode Electrical Adjustments Circuit adjustments WARNING : USE UV RADIATION EYE AND SKIN PROTECTION DURING SERVICING. 1. Fan voltage adjustment 3. Auto calibration adjustment [PC] 2. Panel type check and setting 4. Auto calibration adjustment [Component] 5. Auto calibration adjustment [Video] 6. Common center adjustment 8. Color shading correction adjustment 9. Keystone offset adjustment 7. Gamma shipment adjustment MAIN BOARD Test points and locations K8000 K7801 K8304 K10B K10A K5B Service adjustment data Page Page Page Page Page Page Page Page 50Hz 60Hz PrefHAv50Hz PrefHAv60Hz Display Page Page (PT-VX505N/PT-VW435N1 (PT-VX505N/PT-VW435N1 Page Page Page Page Page Page Page Page RJ-45 USB WIRELESS LAN IC8010 Chassis Block Diagrams Chassis over view System control POWER LAMP BALLAST POWER SUPPLY MCI IC8010 Lamp control MAIN Audio circuit PC/MIC AUDIO2-IN VIDEO AUDIO-IN AV HDMI K8001 Power supply & protection circuit IC301 SCALER <PW190> IC1802 i/o EXPANDER K601 S6V Fan control circuit S16.5V R/C LAMP COVER IC7801 Troubleshooting No power No picture No sound Serial Control Serial terminal Connection Communication conditions Pin assignments and signal names Basic format Serial control Basic format (with sub command) Cable specications Serial control [When connected to a computer] Projector Control commands Computer (DTE specications) Control Port Functions Scaler I/O port functions (PW190) Control port functions Page Page Page Page Page Page Exploded Views & Parts List Exploded Views Parts List Exploded Views Page Page Page Page In the optical unit Page Page Mechanical Parts List SPL-10 Ref. Part No. Description Note Ref. Part No. Description Note PACKING MATERIALS LABEL Mechanical Parts List Ref. Part No. Description Note Ref. Part No. Description Note Electrical Parts List SPL-12 Read description in the Capacitor and Resistor as follows: CAPACITOR CERAMIC 100P K 50V ASSEMBLED BOARDS VX505NU,NE,NEJ,NEA, NEAJ VW435NU,NE,NEJ,NEA,NEA J OUT OF CIRCUIT BOARDS Ref. Part No. Description Note Ref. Part No. Description Note SPL-14 Ref. Part No. Description Note Ref. Part No. Description Note SPL-15 Ref. Part No. Description Note Ref. Part No. Description Note SPL-16 Ref. Part No. Description Note Ref. Part No. Description Note SPL-17 Ref. Part No. Description Note Ref. Part No. Description Note SPL-18 Ref. Part No. Description Note Ref. Part No. Description Note SPL-19 Ref. Part No. Description Note Ref. Part No. Description Note SPL-20 Ref. Part No. Description Note Ref. Part No. Description Note SPL-21 Ref. Part No. Description Note Ref. Part No. Description Note SPL-22 Ref. Part No. Description Note Ref. Part No. Description Note SPL-23 Ref. Part No. Description Note Ref. Part No. Description Note SPL-24 Ref. Part No. Description Note Ref. Part No. Description Note SPL-25 Ref. Part No. Description Note Ref. Part No. Description Note SPL-26 Ref. Part No. Description Note Ref. Part No. Description Note SPL-27 A1001 6550053572 ASSY,PWB ,RC KZ4AC A1002 6550053589 ASSY,PWB ,ID CONNECT KZ4AC Ref. Part No. Description Note Ref. Part No. Description Note SPL-28 AA200 6550053121 ASSY, PWB, AV KJ4CC Ref. Part No. Description Note Ref. Part No. Description Note SPL-29 A6000 6550051486 ASSY,PWB,POWER KJ4AC Ref. Part No. Description Note Ref. Part No. Description Note SPL-30 Ref. Part No. Description Note Ref. Part No. Description Note SPL-31 A6001 6550051493 ASSY,PWB,AC SECOND FILTER KJ4A A6002 6550053008 ASSY, PWB, AC FIRST FILTER KJ4 Page Schematic Diagram & Circuit Boards Diagram Schematic Diagram Circuit Boards Diagram Schematic Diagram & Circuit Boards Diagram DIA-2 Pin description of diode, transistor and IC FET L IC Index Index MAIN B WIFI IRIS AV POWER TO BALLAST AC INLET FUSE THRM P.F. CONTROL AV TLV320AIC3105IRHBR S-VIDEO AUDIO1_IN IC5003 IRIS CIRCUIT TC7WT125FU LIS331DLHTR USB MOUSE/DISPLAY PC IN/OUT I/O EXPANDER M29W640FT70N6E A[1] IC801 M29W640FT70N6E LED DAYLIGHT SENSOR FAN CONTROL POWER P-RIGHT P-LEFT P-DOWN P-UP MENU GAMMA KZ4AC -07 IC501 C0DBEKG00005 X401 NETWORK IC8014 MP2307DN MP2106DK IC8009 NETWORK M29W128GL70N6E H5PS5162GFR-S6C IC8010 IC8005 Printed Wiring Board Diagrams K8I AV (SIDE:B) AV (SIDE:A) LAMP ID K87C K8002 FN910 FN906 FN902 MAIN (SIDE:B) AC 1ST FILTER (SIDE:B) T8AH250V *** ??? PARTS SIDE K601 DIP PbF PARTS SIDE INPUT C606 DIP LINE FLTER 2 "K6C" POWER "K6D"