Philips 44PL9522/17 User manual

Philips Consumer Electronics
Technical Service Data
Service and Quality
Service Publications Dept.
One Philips Drive
P.O. Box 14810
Knoxville, TN 37914
REFER TO SAFETY GUIDELINES
SAFETY NOTICE: ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE
HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS
TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING
© Philips Electronics North America Corporation Visit our World Wide Web Site at http://www.forceonline.com
Manual 7665
First Publish: 08-09-2004
Rev. Date: 08-09-2004
Print Date: 2004-08-09
LCoS - 2004
EMU8 AA - Chassis
Models:
44PL9522/17, 44PL9523/17, 44PL9523/99
55PL9524/37, 55PL9774/37
62PL9524/37, 62PL9774/37
GENERAL INFORMATION
DISASSEMBLY SECTION
ADJUSTMENT SECTION
MECHANICAL DIAGRAMS
WIRING DIAGRAMS
SCHEMATIC DIAGRAMS
CIRCUIT BOARD LAYOUTS
OSCILLOSCOPE WAVEFORMS
44PL952X PARTS LIST
55PL9524 PARTS LIST
55PL9774 PARTS LIST
62PL9524 PARTS LIST
62PL9774 PARTS LIST

GENERAL INFORMATION
Manual 7665
Cineos, LCoS - 2004
Chassis: EMU8 AA
Contents of this chapter:
1. General Appearance.
2. Remote Transmitter Appearance.
3. Introduction.
4. Set Operation.
5. Maintanence.
6. Reflective LCD Introduction.
General Appearance
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Return to Index

Remote Control
3 different Remote Control Transmitters are currently being used with this product.
44" Cineos product uses the RC2043/01B (PN#: 3128 147 13203).
55" & 62" EPIC models use the RC4336/01 (PN#: 3139 238 07841).
55" & 62" Matchline Models use the RC4308/01B (PN#: 3128 147 16361).
Refer to the Replacement Parts Data for the most current data available (see Item 1085 for Remote
Transmitters).
INTRODUCTION
The EM8U chassis is designated for release in the 2004 model year. This is a rear projector based on
LCoS (Liquid Crystal on Silicon) technology. LCoS is a reflective LCD technology. The light source is an
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ARC projection lamp that is replaceable by the customer. This projector is lighter and more compact than
comparable size projection sets using tubes. They will be available in 44 and 55 inch screen sizes. All of
the screen sizes will have a 16x9 aspect ratio. The following table shows the dimensions and weights.
The EM8U is a High Definition Ready set with a screen resolution of 1280x720. It does not have a ATSC
Tuner built in. A Set Top box will be required for viewing ATSC signals.
SET OPERATION
The set has three 1H or NTSC only inputs. They are AV1 and AV2 located on the rear Jack Panel. The
third input is the Side Jack panel. AV3 and AV4 can be either 1H NTSC, 480P, or 1080I signals. These
signals must be in the Y Pb Pr format. AV5 is a DB15 RBG input. AV6 is a DVI 1080I input connector. The
RF input on the Rear Jack panel is for NTSC only. The MON OUT is a monitor output for whichever 1H
Tuner, AV1, AV2, or Side Jack panel signal has been selected.
The indicator LEDs and the Remote Control Receiver are located on the front of the set. When the set is
turned On, the Amber LED will turn On. After the Lamp in the set has switched On, the Green LED will turn
On.
The Control Panel is located at the top of the set. The Power On button is lighted with a blue LED
whenever power is applied to the set.
When the set is turned On via the Keyboard or Remote Control, the set will take approximately 30 seconds
to display a picture. By using the Select button, the Remote can be used to control other devices. A list of
setup codes for other devices is located in the customer's operator's manual. The customer can select the
Menu button on the Remote to make additional selections and adjustments as desired. Use the cursor right
and cursor down buttons on the Remote to select the desired topic.
When Picture is selected, use the cursor down button to select the desired subtopic. For example, press
the cursor down button to select Contrast then use the cursor left and cursor right buttons to change the
values. Additional dots on the lower part of the line indicate that additional selections are present. Continue
to press the cursor down button to make these selections.
Screen size Height Width Depth Weight
44 inch 31.7" 46.7" 14.6" 68.8 lbs
55 inch 38.7" 57" 17.7" 83.9lbs
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MAINTANENCE
Note: The following topics are all taken from the Customer Owner's Manual. They are repeated here as a
convenience and with the assumption that some customers may fail to accomplish these tasks or possibly
may have misplaced their Owner's Manual.
Cleaning or Replacing the Filters
The Cineos TV has two filters that cover air inlets on the bottom of the set. Maintaining a free flow of air
through the inlets is very important. If the air filters become dirty, clogged, or blocked, the temperature in
the set will rise.
Should the heat level become too high due to blockage, a sensor detects this, and a warning message
appears on screen alerting you to check the air inlets for blockage. The message will be displayed for 6
seconds. It reappears every 15 minutes as long as the temperature remains too high.
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If the internal temperature of the TV rises to high, a warning message alerts you that the TV is shutting
down. If the temperature remains at this high level for 1 minute, the TV will enter Standby mode. In
Standby mode, the TV is off.
Be sure the TV is not placed on a surface (such as a shag carpet) that will prevent the free flow of air
through the inlets, and periodically clean or replace the filters as detailed in the following instructions.
WARNING: Do not tip the TV when removing or installing the filters. This may result in
instability of the TV.
1. Place your fingers under one of the filter slots located at either bottom left or right in back of the TV
cabinet.
2. Grasp the filter and gently pull it straight out.
3. Examine the filter for dust or other contamination. If it is dirty, clean it with a vacuum cleaner. DO NOT
WASH it. Replace the filter if vacuuming does not sufficiently clean it.
To order replacement filters, call the Philips Customer Care Center at 1-800-531-0039. The part number
for the Philips TV inlet filter assembly is 3135 037 51810.
WARNING:
DO NOT operate the TV without filters. This will cause serious damage to the TV.
4. Turn the filter so that the arrow is pointing toward the center of the TV. Align the edges of the filter with
the slot track, then gently slide it all the way back into the slot. A click sound can be heard as the filter
reaches the correct position.
Replacing the Lamp
The Cineos TV uses a lamp with a limited lifetime to illuminate the picture. A Lifetime counter in the TV
records the operating time of the lamp. One hundred hours before the lamp reaches the end of its life, a
warning message will appear on screen. This will allow you to prepare to replace the lamp or take action
right away. The message will disappear within 6 seconds. It will reappear each time the TV is turned on
until the lamp is replaced.
To order a replacement lamp, call the Philips Customer Care Center at 1-800-531-0039. A Philips
associate will be happy to assist you. The part number for the Philips TV replacement lamp is 3122 438
71310.
Here are the steps for replacing the lamp:
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1. Power off the TV. Unplug the TV.
2. The lamp door is located on the back of the TV next to the power cord.
Gently slide the door completely to the right to open.
CAUTION: The lamp gets extremely hot. Allow a cool-down time before removing the lamp.
3. Unscrew the thumb screws until they are dangling.
4. Lift the handle out.
5. CAUTION: When removing the lamp, do not touch the glass envelope. It may still be hot.
Grasp the handle, then pull out and slightly down to remove.
WARNING: The lamp contains mercury. Dispose of the lamp in accordance with local, state, and federal
regulations.
6. CAUTION: When installing the new lamp, do not touch the glass envelope. Oil from skin can reduce
lamp life.
Align the groove on top of the new lamp's housing with the corresponding groove pocket inside the TV,
then slide the new lamp into place.
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7. Tighten the thumb screws clockwise until finger tight only. Do not over-tighten.
8. Slide the lamp door closed.
IMPORTANT: The door must be closed completely to the left. Otherwise, the TV will not operate.
9. Continue with instructions for setting the Lamp Rating and resetting the Lamp Lifetime Counter.
Resetting the Lamp's Lifetime Counter
After installing a new lamp in the TV, you need to enter the "Lamp rating" list in the onscreen menu and
select the alphabetical code that is provided with the lamp. The recommended Philips replacement Lamp is
rated for 6000 hours, an F rating
The next step is to use the "Lamp replaced control" to tell the TV that you have installed a new lamp. This
control resets the Lifetime Counter to 0 for the new lamp and begins keeping track of the lifetime of the
new lamp.
1. Press the Menu button on the remote control to display the on-screen menu.
2. Press the Cursor Down button to select "Settings."
3. Press the Cursor Right button to select the "General" menu.
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4. Press the Cursor Down button repeatedly until "Lamp rating" is selected.
5. Press the Cursor Right button to enter the rating list.
6. If necessary, press the Cursor Down button as many times as necessary to select the letter for your
replacement lamp.
7. Press the Cursor Left button to return to the "General" menu.
8. Press the Cursor Down button to select "Lamp replaced."
9. Press the OK button to confirm that you have changed the lamp.
10. Press the Menu button to remove the on-screen menu from the TV screen.
HELPFUL HINTS
* One hundred hours before the lamp reaches the end of its life, a warning message will appear on screen
to alert you. Changing the lamp at this point is recommended for optimal performance.
* A blinking orange light on the front of the set means that the lamp is not working anymore and needs to
be replaced.
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Preliminary (Customer) Troubleshooting
Review This List of Symptoms and Checks Before Requesting Service
You may be able to solve the problem yourself. Charges for TV installation and adjustment of customer
controls are not covered under your warranty.
If you need to call a customer service representative, please know the model number and serial number of
your product before you call. This information is displayed on the back of the product. Also, please take a
moment to identify the problem you are having, and be prepared to explain this to the representative. If you
believe the representative will need to help you with operations, please stay near the product. Our
representative will be happy to assist you. To reach our Customer Care Center, call 1-800-531-0039.
TV-related Checks
The TV won't switch on.
* Make sure the power plug is plugged in.
* If you're using the TV remote control to turn the TV on, be sure the remote is in TV mode.
* Plug something else in to be sure the wall outlet (or extension cord) is receiving power.
* The remote control could have a problem. See the troubleshooting section "Remote-related Checks" on
next page.
* Make sure the lamp door is not ajar. The TV is designed not to operate with the lamp door open.
* If a red light is blinking on the front of the TV, the set has entered protection mode. If this happens it
usually means you simply need to reset the TV. Unplug the TV for 60 seconds. Then plug the TV in and try
to switch it on. If the light is still blinking red, call the Customer Care Center at 1-800-531-0039.
The TV switches off unexpectedly.
* If the lamp door is open, the TV will shut down. The TV is designed not to operate when the lamp door is
ajar.
* If a red light is blinking on the front of the TV, the set has entered protection mode. Unplug and plug the
set back in a couple of times and try to switch it on. If the problem persists, contact the Customer Care
Center at 1-800-531-0039.
* The Sleeptimer may have been set to turn the TV off. Turn the TV back on if desired.
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The TV switches on unexpectedly.
* The On Timer may have been set.
An on-screen message tells you that it is time to replace the lamp.
* The message appears on screen when the lamp has 100 hours of life left, and will reappear each time
the TV is turned on until the lamp is replaced. Prepare to replace the lamp or take action right away.
An on-screen message instructs you to check the air inlets for blockage.
* Check the air inlets and filters for blockage and clean or replace the air filters as necessary.
You have a picture but no sound.
* Make sure Mute is not on.
* The TV speakers may be turned off. Make sure the Center Channel Amp Switch on the back of the TV is
in the INT position.
You have no picture.
* If you have made a connection to the TV's Tuner jack be sure to use Autoprogram.
* If you want to view materials from an accessory device (DVD player, VCR, or satellite receiver, for
example) be sure you have selected the input source to which you have connected the device-AV1, AV2,
AV3, AV4, AV5, AV6, or Side.
* Make sure you have made connections correctly.
You have no picture and no sound.
* If you see a blinking orange light on the front of the set, this means that the lamp needs to be replaced.
You see scrolling images.
* Make sure you have made connections correctly.
The picture appears doubled or tripled.
* If you are using an antenna, be sure it is facing in the correct direction. Also, check to see if it may be
receiving signals that are being reflected off of mountains or buildings.
The picture shakes or is not clear.
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* If you are using an antenna, make sure it is not broken or shorted, and make sure the antenna cable is
connected properly and securely.
* If you are using a VCR and selecting channels on the TV, make sure the TV/VCR mode on the VCR is
set to TV.
The picture has no colors or colors are not correct.
* Make sure you have made connections correctly.
* If you have connected accessory equipment, such as an HD satellite receiver, make sure the color setting
on the accessory equipment is correct. See the user manual for the HD satellite receiver.
The TV sound has an unusual quality.
* Check the TV's Equalizer control to be sure it is set to the option you want.
Remote-related Checks
The remote control does not work.
* Make sure nothing is blocking the path between the remote control and the TV or accessory device you
want to operate.
* Make sure you point the remote directly at the TV or accessory device you want to operate.
* If you want to operate the TV, make sure the remote is in TV mode. If you want to operate an accessory
device, program the remote for the device if necessary and make sure the remote is in the appropriate
mode for the device.
* Make sure you have installed the batteries correctly.
* The batteries could be dead. When the batteries in the remote run low, the remote will send a "Battery
Low" command to the TV.
The TV will then display a message on the screen reminding you to replace the batteries as soon as
possible.
* You may want to try taking the remote batteries out and putting them back in. NOTE: After taking the
batteries out, you may need to reprogram the remote for use with accessory devices.
Reflective LCD Introduction.
The LCOS (Liquid Crystal on Silicon) uses a reflective LCD system. A single reflective LCD panel with
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multiple LCD cells is used. Since a single panel is used, it is necessary to scan the panel with the primary
colors to obtain a color picture. A LCD is a light valve which allows more or less light through it, depending
on the applied voltage.
The LCD used in most projectors and direct view LCD TVs uses a transmissive type of LCD. Light is
projected to pass through the LCD panel. One of the disadvantages of this type of system is that the
electronics to control the LCD cells limit the surface area in which light can pass. This limits the resolution
of the picture and brightness.
The Reflective type of LCD, like the one used in the LCOS, has the electronics beneath the LCD cells,
allowing greater resolution. The LCD cells are turned On, switching the individual cells. Beneath each cell
is a reflective surface. The amount of light reflected from each cell depends on the applied voltage. Since
the LCD may be illuminated by all three primary colors at one time, several cells are addressed at once.
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The Reflective LCD used in the LCOS projector uses a 1280x1024 device with 20 micron pixels. Since the
aspect ratio of the TV is 16x9, the actual area used is 1280x720.
Regardless of the format of the input, the LCD displays the picture in a 1280x720 format.
The Philips LCOS projector uses a single LCD device. To obtain a color picture, the LCD is scanned with
strips of Red, Green, and Blue light. The strips of color are developed by splitting the light from the Lamp
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and directing it to three color filters which produce Red, Green, and Blue light. The output from the filters is
directed to three rotating Prisms to produce the color strips and direct it to the correct part of the LCD. Data
is directed to the LCD in such a way that the correct data for color illuminating that portion of the LCD will
be displayed. The LCD is being scanned a rate of 180 Hz. The phase of each prism is offset by 30 degrees
to provide color separation. The reflected light from the LCD is fed to a projection lens, the mirror, and
finally the screen.
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Philips Consumer Electronics
Technical Service Data
Service and Quality
Service Publications Dept.
One Philips Drive
P.O. Box 14810
Knoxville, TN 37914
REFER TO SAFETY GUIDELINES
SAFETY NOTICE: ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE
HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS
TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING
© Philips Electronics North America Corporation Visit our World Wide Web Site at http://www.forceonline.com
Manual 7665
First Publish: 08-09-2004
Rev. Date: 08-09-2004
Print Date: 2004-08-09
DISASSEMBLY
Return to Index

Disassembly Procedures for 44” & 55” LCoS
Main Cabinet Exploded View
Item Numbers and Letter Identifiers mentioned below, refer to the Main Cabinet Exploded View.
Display The Main Cabinet Exploded View.
NOTE: If you are servicing a Printed Circuit Board or main speaker, you do not need to remove the
Upper Back Cover.
Lower Back Cover (Item 0036)
1. Remove (13) T20 Torx screws and (2) T10 Torx screws (A).
Note: It may be necessary to press on the sides of the lower back where it “snaps” into place at
the front cabinet to get it to release.
2. Remove (2) T6 Torx screws (B) holding the Side Jack Panel (Item 0127), disconnect connectors
1335 and 1344 and ground connector 1337.
Note: The ground tab has a small catch to release during removal.
3. Slide the Side Jack Panel through the rear of the back cover.
Upper Back Cover (Item 0034)
Note: The Lower Back Cover must be removed before removing the Upper Back Cover.
Note: The Upper Back Cover holds the Mirror.
1. Remove (8) T20 Torx screws (C).
2. Remove (2) T20 Torx screws (D) attaching the Fan Motor Assembly to the Upper Back Cover.
3. Remove (4) T20 Torx screws (E) attaching the small signal cable assembly harness to the Upper
Cabinet Back. (Not shown)
Note: It may be necessary to press on the sides of the upper back where it “snaps” into place at
the front cabinet to get it to release.
Note: When replacing the Upper Cabinet Back, care should be used to properly route the cable
for the customer control assembly.
Note: When re-installing the Upper Cabinet Back, care should be taken to correctly position the
Light Shield that is attached to the Upper Cabinet Back.
Mirror (Item 0021)
1. Remove both Lower and Upper Cabinet Backs.
2. Remove both the Left and Right Vertical mirror support brackets. (Items 0079 & 0080)
3. Remove both Horizontal Mirror support brackets and remove the mirror. (Items 0078)
Note: Care should be taken NOT to place fingerprints or smudges on the mirror.
Input Power Supply (Item 1045)
1. Remove (2) T20 Torx screws (N) attaching the power assembly bracket (Item 0117) to the base
assembly (Item 0038).
2. Slide the power assembly rearward as far a possible.
Note: It may be necessary to release cable harnesses to gain adequate access.

3. Remove (6) T10 Torx screws (O) securing the input power panel to the power assembly bracket.
Main Power Panel (Item 1010)
1. Remove (2) T20 Torx screws (N) attaching the power assembly bracket (Item 0117) to the base
assembly (Item 0038).
2. Slide the power assembly rearward as far a possible.
Note: It may be necessary to release cable harnesses to gain adequate access.
3. Remove (6) T10 Torx screws (P) securing the main power panel to the power assembly bracket.
SSB Panel (Item 1185)
1. Remove (3) T10 Torx screws (Q) securing the SSB bracket (0072).
2. Remove all ribbon cables from the scaler panel and the system board.
3. Release the (2) metal clips located at either end of the SSB panel 80 pin connector, and tilt the
SSB panel to the right.
4. Slide the SSB panel from its connector.
Scaler Panel (1052)
1. Remove (2) Torx screws (R) from the bottom of the small signal assembly securing it to the
cabinet base.
2. Remove (14) T10 Torx screws (S) securing the cinch plate to the small signal assembly.
3. Remove (4) hex screws. Two each at the DVI and RGB-HV input connectors.
4. Remove the cinch plate.
5. Disconnect the main video cable by unscrewing the (2) thumbscrews and disconnect the (2)
ribbon cables.
6. Slide the scaler panel rearward to disconnect from its connector on the system board.
Cinch Panel (1016)
1. Remove (2) Torx screws (R) from the bottom of the small signal assembly securing it to the
cabinet base.
2. Remove (14) T10 Torx screws (S) securing the cinch plate to the small signal assembly.
3. Remove (4) hex screws. Two each at the DVI and RGB-HV input connectors.
4. Slide the cinch panel rearward to disconnect from its connector on the system board.
Audio Panel (1012)
1. Remove (2) Torx screws (R) from the bottom of the small signal assembly securing it to the
cabinet base.
2. Slide the small signal assembly rearward to allow access to the front of the assembly.
3. Remove (4) T10 Torx screws (T) securing the audio panel to the small signal assembly bracket.
4. Remove the (4) cable harnesses.
System Board (1020)

Note: The Audio, Cinch, Scaler, and SSB panels should be removed prior to removal of the system
board.
1. Remove (2) Torx screws (R) from the bottom of the small signal assembly securing it to the
cabinet base.
2. Slide the small signal assembly rearward to allow access to the front of the assembly.
3. Remove (4) T20 Torx screws (U) securing the system board bracket to the small signal assembly
bracket.
4. Release (2) clips holding the system board to the system board bracket.
5. Remove remaining cable harnesses.
Keyboard (Customer Controls) (1032)
1. Remove (2) T20 Torx screws (V) holding the Keyboard and cover to the cabinet cap.
2. Remove (2) T6 Torx screws holding the circuit board to the control bracket.
3. Release (4) plastic clips holding the circuit board to the control bracket and lift the PWB from the
bracket.
4. Disconnect connector 1201 and ground clip 1202.
Speakers (Woofer) (Item 5213)
1. Remove Lower Back Cover item 0034.
2. Remove (2) T20 Torx screws (R) to allow the small signal assembly to slide to the rear.
3. Remove (2) T20 Torx screws (N) to allow the power assembly to slide to the rear.
4. Remove (4) T20 Torx screws from the speakers and disconnect the speaker wires.
Speakers (Tweeter) (Item 5214)
1. Remove both the Lower and Upper Back Covers.
2. Remove (2) T20 Torx screws and disconnect the speaker wires.
Speaker Baffle (Item 0039)
Note: There are no adjustments that require the removal of the speaker baffle.
CAUTION: DO NOT REPOSITION THE LIGHT ENGINE TO GAIN ACCESS TO THE SPEAKER
BAFFLE TABS.
1. Remove the Lower Back Cover.
2. Carefully release the 20 plastic tabs holding the speaker baffle in place.
Screen Assembly (0030)
1. Remove the Lower and Upper Back Covers
2. Remove (4) T20 Torx screws (W) and remove the Top Cap with Customer Control Assembly.
(0032)