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FILE NO.
SERVICE MANUAL
Multimedia Projector
Model No. PLC-SW30
U.S.A., Canada, Europe, Asia, Africa
Original Version
Chassis No. MP3-SW3000
NOTE: Match the Chassis No. on the unit's back cover with the Chassis No. in the Service Manual. If the Original Version Service Manual Chassis No. does not match the unit's, additional Service Literature is required.You must refer to "Notices" to the Original Service Manual prior to servicing the unit.
PRODUCT CODE 1 122 223 00 (MP3A) 1 122 226 00 (PP3A) 1 122 226 02 (PP3C)
REFERENCE NO. SM5110522
Contents
Safety instructions ________________________________________________3 Specifications __________________________________________________ 4 Circuit protections ______________________________________________ 5-6 Fuse ____________________________________________________ 5 Thermal switch ____________________________________________ 5 Lamp cover switch __________________________________________ 5 Warning temperature and power failure protection ________________ 6 Lamp replacement ______________________________________________ 7 Mechanical disassemblies ______________________________________ 8-13 Optical parts disassemblies ____________________________________ 14-16 LCD panel/prism ass'y replacement ________________________________ 17 Adjustments after parts replacement ________________________________ 18 Optical adjustments __________________________________________ 19-21 Contrast adjustment ________________________________________ 19 Condenser lens adjustment __________________________________ 20 Relay lens adjustment ______________________________________ 21 Electric adjustments __________________________________________ 22-30 Service adjustment menu operation ____________________________ 22 Circuit adjustments ______________________________________ 23-25 Service adjustment data table ______________________________ 26-29 Test points and locations ____________________________________ 30 Circuit block diagrams ________________________________________ 31-33 Power supply lines ______________________________________________ 34 Troubleshooting ______________________________________________ 35-38 Indicators and Projector Condition ____________________________ 35 No power ________________________________________________ 36 No picture ________________________________________________ 37 No sound ________________________________________________ 38 Waveforms ____________________________________________________ 39 Control port functions ________________________________________ 40-43 Cleaning ______________________________________________________ 44 IC block diagrams ____________________________________________ 45-48 Service parts lists ____________________________________________ 49-67 Electrical parts list ______________________________________ 49-63 Mechanical parts list ____________________________________ 64-65 Optical parts list ________________________________________ 66-67
Drawings & Diagrams ________________________________________ A1-A9
Parts description and reading in schematic diagram ____________________ A2 Schematic diagrams __________________________________________ A3-A6 Printed wiring board diagrams __________________________________ A7-A8 Pins description of ICs, transistors, diodes __________________________ A9
2
Safety Instructions
SAFETY PRECAUTIONS
WARNING: The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is identified with the line ( ) in the schematic diagram. For continued product safety and protection of personnel injury, servicing should be made with qualified personnel. The following precautions must be observed. 1: An isolation transformer should be connected in the power line between the projector and the AC line before any service is performed on the projector. 2: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabinet or on the chassis. 3: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly, such as, control knobs, adjustment covers or shields, barriers, etc. DO NOT OPERATE THIS PROJECTOR WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROPERLY SECURED. 4: Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or tools have been left inside. Before returning any projector to the customer, the service personnel must be sure it is completely safe to operate without danger of electric shock.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of the projector. Components indicated by mark in the parts list and the schematic diagram designate components in which safety can be of special significance. It is, therefore, particularly recommended that the replacement of there parts must be made by exactly the same parts.
SERVICE PERSONNEL WARNING
Eye damage may result from directly viewing the light produced by the Lamp used in this equipment. Always turn off Lamp before opening cover. The Ultraviolet radiation eye protection required during this servicing. Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizer generates high voltages(15kV - 20kV) at its starts. Since the lamp is very high temperature during units operation replacement of the lamp should be done at least 45 minutes after the power has been turned off, to allow the lamp cool-off.
3
Specifications
Projector Type Dimensions (W x H x D) Net Weight LCD Panel System Panel Resolution Number of Pixels Color System High Definition TV SIgnal Scanning Frequency Projection Image Size (Diagonal) Projection Lens Throw Distance Projection Lamp Video Input Jack AV Audio Input Jack Computer Input Terminal Computer Audio Input Jack Control Port Connector USB Connector Internal Audio Amp Build-in Speaker Feet Adjustment Voltage and Power Consumption Operating Temperature Storage Temperature Remote Control Unit Multi-media Projector 10.63" x 3.07" x 7.48" (270mm x 78mm x 190mm) (not including Adjustable Feet) 4.6 lbs (2.1 kg) 0.5" TFT Active Matrix type, 3 panels 800 x 600 dots 1,440,000 (800 x 600 x 3 panels) PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N 480i, 480p, 575i, 575p, 720p, 1035i and 1080i H-sync. 15 ~ 80 kHz, V-sync. 50 ~ 100 Hz Adjustable from 34" to 200" F 1.6 ~ 1.8 lens with f 18.3 mm ~ 21.9 mm with manual zoom and focus 4.3' ~ 21.2' (1.3 m ~ 6.5 m) 160 W RCA Type x 1 (Video) and and Mini DIN 4 pin x 1 (S-Video) Mini Jack (stereo) x 1 (VGA) HDB 15 Terminal x 1 Mini Jack (stereo) x 1 Mini DIN 8 pin x 1 USB Series B receptacle x 1 0.8 W RMS 1 speaker, ø1.3" (32 mm) 0° to 8.0° AC 100 ~ 120V (2.4A Max. Ampere), 50/60Hz (The U.S.A and Canada) AC 200 ~ 240V (1.2A Max. Ampere), 50/60Hz (Continental Europe and The U.K.) 41 °F ~ 95 °F (5°C ~ 35°C) 14 °F ~ 140 °F (-10°C ~ 60°C) Wireless Remote Control, batteries AAA, SUM-04 or R03 type x 2 Presentation Remote Control, batteries AAA, SUM-04 or R03 type x 2 Presentation Remote Receiver
The specifications are subject to change without notice.
This symbol on the nameplate means the product is Listed by Underwriters Laboratories Inc. It is designed and manufactured to meet rigid U.L. safety standards against risk of fire, casualty and electrical hazards.
The CE Mark is a Directive conformity mark of the European Community (EC).
4
Circuit Protections
This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projector, it will automatically turn off by operating one of the following protection circuits.
Fuse
A fuse is located inside of the projector. When the POWER indicator is not lightning, the fuse may be opened. Check the fuse as following steps. The fuse should be used with the following type; Filter Board
Fuse Part No.: 423 022 2102 TYPE T4.0AH 250V FUSE LITTEL FUSE INC. TYPE 215004
Fuse
How to replace the fuse 1. Remove the cabinet top following to "Mechanical
Disassemblies".
2. Remove the cover on the Filter Board. 3. Remove fuse from fuse holder.
To install the fuse, take reversed step in the above. Thermal Switch
Thermal switch
There is the thermal switch (SW902) inside of the projector to prevent the internal temperature rising abnormally. When the internal temperature reaches near 100°C, turn off the AC main power supply automatically. The thermal switch is not reset to normal automatically even if the internal temperature becomes normal. Reset the thermal switch following procedure. Check the resistance between terminals of thermal switch by using the tester. If it has high impedance, thermal switch may be in operative.
How to reset the thermal switch 1. Remove the cabinet top following to "Mechanical
Disassemblies".
2. Press the reset button on the thermal switch with a sharppointed tool. CAUTION: Before press the reset button, make sure that the AC cord must be disconnected from the AC outlet. Lamp Cover Lamp Cover Switch
Lamp cover switch
The lamp cover switch (SW8801) cuts off the drive signal to the lamp circuit when the lamp cover is removed or no close completely. After opening the lamp cover for replacing the lamp ass'y, place the lamp cover correctly otherwise the projector can not turn on.
-5-
Circuit Protections
Warning temperature and power failure protection
The WARNING indicator flashes red and the projector will automatically turn off when the internal temperature of the projector exceeds the normal temperature or when stopping cooling fans or when the internal power supply lines are failed. Check the following possible causes and wait until stopping the WARNING indicator flashing.
Possible causes
- Air filter is clogged with dust particles. Remove dust from the air filter by following instructions in the "Air filter care and cleaning" below. - Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are not obstructed. - Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 °C or 41 to 95°F) If the WARNING indicator still continues to flash, there may be defects on cooling fans or power supply circuits. Please check fan operation and power supply lines referring to the "Power Supply Lines Chart".
Air filter care and cleaning
The removable air filter prevents dust from accumulation on the surface of the projection lens and projection mirror. Should the air filters become clogged with dust particles, it will reduce the cooling fan's effectiveness and may result in internal heat build up and adversely affect the life of the projector.
To clean up the air filters, follow the cleaning procedure below: 1. Turn the projector off, and disconnect the AC power cord from the AC outlet. 2. Turn the projector upside down and remove the air filters by pulling the latches upward. 3. Clean the air filters with a brush or wash out dust and particles. 4. Replace each air filter properly. Make sure that the air filters are fully inserted.
Air filters
CAUTION:
Do not operate the projector with the air filters removed. Dust may accumulate on the LCD panel and the mirror, and it may spoil the fine picture image. Do not put the small parts into the air intake vents. It may result in the malfunction of the projector. The air filter is small parts. Take care that children don't eat or swallow it.
RECOMMENDATION
We recommend avoiding dusty, smoky environments when operating the projector. Usage in these environments may cause poor image quality. When using under dusty or smoky conditions, dust may accumulate on optical elements inside the projector. The condition may degrade the quality of a projected image. When the above symptoms are noticed, please clean up the LCD panel and lens following to the "Cleaning Method".
-6-
-6-
Lamp Replacement
WARNING:
- Allow a projector to cool, for at least 45 minutes before you open Lamp Cover. The inside of a projector can become very hot. - For continued safety, replace with a lamp assembly of the same type. - Do not drop a lamp assembly or touch a glass bulb! The glass can shatter and may cause injury. Procedure 1 Turn off the projector and disconnect the AC plug. Allow the projector to cool at least for 45 minutes. 2 Remove 1 screw and remove the lamp cover. 3 Remove 2 screws and pull out the lamp assembly by grasping the handle. 4 Replace the lamp assembly securely and tighten 2 screws. 5 Close the lamp cover and tighten 1 screw. 6 Connect the AC Power Cord to the projector and turn on the projector. ORDER REPLACEMENT LAMP Type No. Service Parts No. POA-LMP57 610 308 3117
Screw
Lamp cover Handle Screws
7 Reset the Lamp Replace Counter, see below explanation.
Note: - Do not reset the Lamp Replace Counter, except after lamp is replaced. - The projector can not be turned-on with lamp cover removed, because when the lamp cover is removed, the lamp cover switch is also released to switch off the mains power for safety.
How to reset Lamp Replace Counter 1 Turn the projector on, and press the MENU button
and the on-screen menu will appear. Press the POINT LEFT/RIGHT buttons to move the red frame pointer to the Setting Menu icon. 2 Press the POINT DOWN button to move the red frame pointer to "Lamp counter reset" and then press the SELECT button. The message "Lamp replace counter reset?" is displayed. Move the pointer to [Yes] and then press the SELECT button. 3 Another confirmation dialog box appears and select [Yes] to reset Lamp Replace Counter . Please refer to the owners manual for further information.
Lamp Assembly
Recommendation
Should the air filter become clogged with dust particles, it will reduce the cooling fan's effectiveness and may result in internal heat build up and short lamp life. We recommend cleaning the air filter after the projection lamp is replaced. Refer to "Air Filter Cleaning".
How to check Lamp used time
The LAMP REPLACE indicator will light yellow when the total lamp used time reaches 2000 hours. This is to indicate that lamp replacement is required. The total lamp used time is calculated by using the below expression; Total lamp used time = Teco + Tnomal (1+1/4) Teco : used time in the Eco mode Tnormal : used time in the Normal and Auto mode You can check the lamp replace counter following to below procedure. 1 Press and hold the POWER ON-OFF button on the projector or the remote control unit for more than 20 -7-
seconds.
2 The projector used time and lamp used time will be
displayed on the screen briefly. Projector used time
Counter Projector Lamp Normal Eco Total 130H 24H 100H 130H
Total lamp used time
Mechanical Disassemblies
Mechanical disassemble should be made following procedures in numerical order. Following steps show the basic procedures, therefore unnecessary step may be ignored. Caution: The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of performance and product safety.
Screws Expression (Type Diameter x Length) mm T type M Type
1 Cabinet Top removal 1 Remove the Air Filter in the side of the set at first.
(If not, the filter would be broken.)
2 Remove 4 screws A (M3x6) and 1 screw B (M3x8),
and then take the Cabinet Top upward off.
A
A
Cabinet Top
B A A
Air filter (Panel net_side)
Fig.1
-8-
Mechanical Disassemblies
2 Cabinet Front and R/C Board removal 1 Remove 2 screws A (M3x6) and 2 screws B (M3x6
black) to take the Cabinet Front off. A Cabinet Front A B
2 Remove 1 screw C (T3x6) to the R/C Board on the
Cabinet Front.
C
B R/C Board
Fig.2
3 Main Board removal 1 Remove 4 screws (M3x6) to take the Main Board upward.
Main Board
Fig.3
-9-
Mechanical Disassemblies
4 Rear Panel, AV Board and FN903 removal 1 Remove 1 screw A (M4x4) and take the Rear Panel
ass'y upward off. 2 Remove 2 screws B (T3x8) to take the fan (FN903) off. 3 Remove 4 screws C (T3x6) and take AV Board from the Rear Panel ass'y off. A C C AV Board C C B
B
Rear Panel
FN903
Fig.4 5 Thermal SW removal 1 Remove 1 screw (M3x6) to take the Thermal Switch
(SW902) and the Cover Spacer off. Thermal SW Cover Thermal SW
Lamp Cover Spacer
Fig.5
-10-
Mechanical Disassemblies
6 Optical Unit removal 1 Remove 2 screws A (M3x8) and take the Lamp Cable
off. 2 Remove 6 screws B (T3x10) and take the Optical Unit upward off. A A B B B B B
B Cover lens sheet
Lamp Cable Optical Unit
Fig.6 7 Power Unit, Speaker and FN906 removal 1 Remove 4 screws A (T2x4) to take off the spacer sheet
and the shield plate on the Power Board. 2 Remove 1 screw B (M3x8) to take the Speaker(SP901) off. 3 Remove 2 screws C (T3x8) and 1 screw D (M4x4) to take the Power Unit and the Fan(FN906) off. 4 Take the Fan(FN906) from the Holder by pulling it. 5 Remove 3 screws E (T3x6) to take the Power Unit off. A A A A Shield Plate Spacer Sheet Speaker Holder B
Speaker (SP901) C Power Board E C E D E
Notes: You can remove the connectors on the Power Unit after the Lamp Ballast Unit removal.
Holder FN906
Fig.7
-11-
Mechanical Disassemblies
8 Lamp Ballast Unit and Filter Board removal 1 Remove 1 screw A (M4x4) to take the Earth cable off. 2 Remove 2 screws B (T3x8) to take the Lamp Ballast
Unit and the Filter Board off.
Spacer Sheet Lamp ballast Board C B Holder Filter Board D D A D
3 Remove 2 screws C (T3x6) to take the Lamp Ballast
Unit off.
B C
4 Remove 3 screws D (T3x6) to take the Filter Board off.
Spacer Sheet Shield Plate
Fig.8 9 FN904 removal 1 Remove 2 screws A (T3x8) to take the Fan (FN904)
ass'y off.
2 Remove 2 screws B (M3x30) to take the Fan (FN904)
off from the Fan mounting base.
A A
FN904
FN904 Ass'y
B
B
Fig.9
-12-
Mechanical Disassemblies
10 FN902, FN905 and Sensor Board removal 1 Remove 1 screw A (T3x8) to take the Duct under the
Panel.
B
2 Remove 1 screw B (T3x8) to take the Holder with the
Fans(FN902 and FN905) off.
3 Remove 2 screws C (T3x10) to take the Fans (FN902
and FN905) off. 4 Remove 1 screw D (T3x6) to take the Sensor Board off. FN902
C
C FN905 A D Sensor Board
Fig.10 11 FN901 and Lamp Cover SW removal 1 Remove 1 screws A (T4x4) to take the shield plate off. 2 Remove 2 screws B (T3x8) to take the Fan (FN901) and
the duct off. 3 Remove 2 screws C (T3x8) to take the SW Board and the spring off. Earth Plate
B B
Duct FN901 Spacer C SW Board A C Spring
Shield Plate
Spacer sheet
Fig.11
-13-
Optical Parts Disassemblies
Before taking this procedure, remove Cabinet Top, Main Board and Optical Unit following to the "Mechanical Disassemblies".
1 Lamp Holder removal 1 Remove 4 screws to take the Lamp Holder off.
Lamp Holder
Optical Unit Box
Fig.1 2 Projection Lens Ass'y removal 1 Remove 3 screws to take the Projection Lens ass'y off.
Projection Lens and Panel/Prism Ass'y
Optical Unit Box
Fig.2
-14-
Optical Parts Disassemblies
3 Polarized Glass-In removal 1 Remove each screw to take the polarized glass-in R/G/B
off. Note: The polarized glass-in_red is sticked on the condenser lens_red. So, it cannot be removed separately.
Polarized glass_Red Polarized glass _Green and Blue
Fig.3-2
Polarized glass_Red Polarized glass_Blue
Screw
B G
R
Polarized glass sticked on Condenser lens(R) Polarized glass with mounting holder
Polarized glass_Green
Optical Unit Box
Fig.3-1
4 Optical Unit Top removal 1 Remove 6 screws to take the Optical unit top off.
Screw
Optical Unit Base
Screw
Fig.4
-15-
Optical Parts Disassemblies
Locations and Directions
When the optical parts in the optical unit mounting or assembling, the parts must be mounted in the specified location and direction as shown in figure below.
Key No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Description Integrator lens (IN) Mirror (W) Integrator lens (OUT) PBS (polarizing beam splitter) Condenser lens (IN) Dichroic mirror (B) Dichroic mirror (G) Relay lens (IN) Mirror (R) Relay lens (OUT) Condenser lens (R) Condenser lens (G) Condenser lens (B) Mirror (B)
14
13 12
11
9
1
2 3
4
5
6
7
8
9
Fig.5
10
-16-
LCD Panel/Prism Ass'y Replacement
1 LCD Panel/Prism Ass'y removal 1 Remove 4 screws to take the Projection Lens off.
Zoom Lever
UP
Projection Lens
Panel/Prism Ass'y
Fig.1
2 LCD Panel/Prism Ass'y attachment 1 Tighten 4 screws to fix the Projection Lens securely,
making sure that the zoom lever is upside. Note: Do not replace the LCD panel separately otherwise it can not obtain proper picture. Do not touch the prism, the LCD panel and the electrode of flexible cable.
IMPORTANT NOTICE on LCD Panel/Prism Ass'y Replacement LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass'y. These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced whole of the LCD panels and prism ass'y at once. After replacing LCD Panel/Prism ass'y, please check the following adjustments. - Check the "Condenser Lens Adjustment" and "Relay Lens Adjustment" following to chapter "Optical Adjustment". - Check the "White Balance Adjustment" and "Common Centre Adjustment" following to chapter "Electrical Adjustment". - Check the white uniformity on the screen. If you find the color shading, please adjust the white uniformity by using the proper computer and "Color Shading Correction" software supplied separately. The software can be ordered as follows; COLOR SHADING CORRECTION Ver. 3.0 Service Parts No. 645 056 6288
-17-
Adjustments after Parts Replacement
: Adjustment necessary : Check necessary Disassembly / Replaced Parts
LCD/ Prism Ass'y Optical Unit Polarized glass R() G B Power Board Main Board
Contrast Adjustment
Optical Adjustments
R-Contrast adjustment G-Contrast Adjustment B-Contrast adjustment Condenser lens adjustment Relay lens adjustment
PC pedestal adjustment
Electrical Adjustments
PC gain adjustment Video gain adjustment 480p pedestal adjustment 480p gain adjustment 480i gain adjustment Gamma adjustment (PC and AV) Common center adjustment White balance adjustment (PC and AV)
Note() : The polarized glass(R) is sticked on the condenser lens(R).
-18-
Optical Adjustments
Before taking optical adjustments below, remove the Cabinet Top and Main Board following to the "Mechanical Disassemblies" Adjustments require a plus screwdriver, 2.0mm hex wrench and a slot screwdriver. Note: Do not disconnect connectors K8A, K8B, K8H, K48K, K48L, K66A, K66B, K66C, K66D, K66E and K66F on the main board, because the projector can not turn on due to operate the power failure protection.
Contrast adjustment
[Before Adjustment] - Input a 100% of black raster signal.
[R/G/B-CONTRAST ADJUSTMENT] 1 Loosen a screw A (Fig.1-1/1-2) on the polarized glass mounting 2 3
base which you intend to adjust. Turn the polarized glass mounting base as shown in Fig.1-1 to obtain the darkest brightness on the screen. Tighten the screw A to fix the polarized glass mounting base. A
Polarized glass mounting base
Repeat steps 1 to 3 for remaining polarized glasses.
Fig.1-1
A
R-Polarized Glass Mounting Base
B-Polarized Glass Mounting Base
A
A
G-Polarized Glass Mounting Base Main Board
Fig.1-2
-19-
Optical Adjustments
Condenser Lens adjustment 1 Turn the projector on by a state of without FPC cables. 2 Adjust the adjustment base of condenser lens ass'y to make color
uniformity in white. 1) If the shading appears on the left or right of the screen as shown in Fig.2-1, loosen 2 screws A with the 2.0mm hex driver, and adjust the slot B to make color uniformity in green by using a slot screwdriver. 2) If the shading appears on the top or bottom of the screen as shown in Fig.2-2, loosen 2 screws C with the 2.0mm hex driver, and adjust the slot D to make color uniformity in green by using a slot screwdriver Tighten screws A and C to fix the Condenser lens unit. a White b
Slot B
3
Note: The relay lens adjustment must be carried out after completing this adjustment. b
a A
A
Fig.2-1
Moving of slot B
x White y
y C x
C
Slot D
Fig.2-2
Moving of Slot D
-20-
Optical Adjustments
Relay lens-Out adjustment 1 Turn the projector on by a state of without FPC cables. 2 Adjust the adjustment base of relay lens ass'y to make color uniformity in white. 1) If the cyan bar appears on the left or right of the screen as shown in Fig.4-1, loosen 2 screws A with the 2.0mm hex driver, and adjust the slot B to make color uniformity in white by using a slot screwdriver. 2) If the cyan bar appears on the top or bottom of the screen as shown in Fig.4-2, loosen 2 screws C with the 2.0mm hex driver, and adjust the slot D to make color uniformity in white by using a slot screwdriver. 3 Tighten the screws A and C to fix the relay lens unit.
a
White Cyan
b
Slot B b a A
Fig.4-1
Moving of slot B
A
x White y Cyan
C
y x C
Slot D
Fig.4-2
Moving of slot D
-21-
Electrical Adjustments
Service Adjustment Menu Operation
To enter the service mode
To enter the "Service Mode", press and hold the MENU and INPUT button on the projector at the same time for more than 3 seconds, or press and hold the MENU button on the remote control unit for more than 20 seconds. The service menu appears on the screen as follows.
To adjust service data
Select the adjustment item no. by pressing the pointer UP or DOWN button, and change the data value by pressing the VOLUME or VOLUME + button. Refer to the "Service Adjustment Data Table" for further description of adjustment item no. and data value.
To exit the service mode
To exit the service mode, press the POWER ON-OFF button on the projector or the remote control unit.
Input Mode
Service Mode
Item No.
Computer
Data value
WARNING POWER LAMP REPLACE
70
INPUT
35
Version No.
ON - OFF
LUME VO
LUME+ VO
100
SELECT MENU
TempA 32.10 Fan1Speed 97
TempB 43.21 Fan2Speed 105
TempC 45.67 Fan3Speed 79
Note : This part of display is available at the service mode No.60 - 83.
Memory IC Replacement
IC1841 on the main board stores the data for the service adjustments, and should not be replaced except for the case of defective device. If replaced, it should be performed the re-adjustments following to the "Electrical Adjustments". The data of lamp replacement monitor timer is stored in the IC1841. Please note that the lamp replace counter is reset when the memory IC (IC1841) is replaced. (Lamp replace counter can not be set to the previous value.) Caution to memory IC replacement When IC1841 is replaced with new one, the CPU writes down the default data of the service adjustments to the replaced IC, refer to the service adjustment table. As these data are not the same data as factory shipped data, it should be required to perform the readjustments following to the "Electrical Adjustments". Please note that in this case the lamp replace counter will be reset. Caution of Main Board replacement (in the case IC1841 is not defective) When the main board is replaced, IC1841 should be replaced with the one on previous main board. After replacement, it should be required to perform the readjustments following to the "Electrical Adjustments". In this case, the lamp replace counter can be kept the value as before.
-22-
Electrical Adjustments
Circuit Adjustments
CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance and product safety. [Adjustment Condition] Input signal Video signal .......................... 1.0Vp-p/75 terminated, 16 steps gray scale, white 100% and white 50% pattern (Composite video signal) Computer signal .................... 0.7Vp-p/75 terminated, 16 steps gray scale pattern (SVGA) Component Video signal........ 0.7Vp-p/75 terminated, 16 steps gray scale, white 100% and black 0% pattern (480i format and 480p format) Picture control mode ................ "STANDARD" mode unless otherwise noted.
16 steps gray scale pattern
White 100%
Black 100%
Note: * Please refer to "Service Adjustment Menu Operation" for entering to the service mode and adjusting the service data.
z PC Pedestal adjustment
1. Receive the 16-step gray scale computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TPR1" (+) and chassis ground (-). 4. Select item no. "275" and change data value to adjust the pedestal level and black level to be the same level. 5. Connect an oscilloscope to test point "TPG1" (+) and chassis ground (-). 6. Select item no. "276" and change data value to adjust the pedestal level and black level to be the same level. 7. Connect an oscilloscope to test point "TPB1" (+) and chassis ground (-). 8. Select item no. "277" and change data value to adjust the pedestal level and black level to be the same level.
Black Lebel Pedestal Lebel
x PC Gain adjustment
1. Receive the 16-step gray scale computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TPR1" (+) and chassis ground (-). 4. Select item no. "7" and change data value to adjust waveform "a" to be minimum amplitude. 5. Connect an oscilloscope to test point "TPG1" (+) and chassis ground (-). 6. Select item no. "8" and change data value to adjust waveform "a" to be minimum amplitude. 7. Connect an oscilloscope to test point "TPB1" (+) and chassis ground (-). 8. Select item no. "9" and change data value to adjust waveform "a" to be minimum amplitude.
White Level
(a)
-23-
Electrical Adjustments
c Video Gain adjustment
1. Receive the 16-step gray scale composite video signal with Video [Video] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TPR1" (+) and chassis ground (-). 4. Select item no. "7" and change data value to adjust waveform "a" to be minimum amplitude. 5. Connect an oscilloscope to test point "TPG1" (+) and chassis ground (-). 6. Select item no. "8" and change data value to adjust waveform "a" to be minimum amplitude. 7. Connect an oscilloscope to test point "TPB1" (+) and chassis ground (-). 8. Select item no. "9" and change data value to adjust waveform "a" to be minimum amplitude.
White Level
b 480p Gain adjustment
1. Receive the 16-step gray scale component signal (480p format) with COMPUTER IN [COMPONENT] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TPR1" (+) and chassis ground (-). 4. Select item no. "7" and change data value to adjust waveform "a" to be minimum amplitude. 5. Connect an oscilloscope to test point "TPG1" (+) and chassis ground (-). 6. Select item no. "8" and change data value to adjust waveform "a" to be minimum amplitude. 7. Connect an oscilloscope to test point "TPB1" (+) and chassis ground (-). 8. Select item no. "9" and change data value to adjust waveform "a" to be minimum amplitude.
White Level
(a)
(a)
v 480p Pedestal adjustment
1. Receive the 16-step gray scale component signal (480p format) with COMPUTER IN [COMPONENT] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TPR1" (+) and chassis ground (-). 4. Select item no. "275" and change data value to adjust the pedestal level and black level to be the same level. 5. Connect an oscilloscope to test point "TPG1" (+) and chassis ground (-). 6. Select item no. "276" and change data value to adjust the pedestal level and black level to be the same level. 7. Connect an oscilloscope to test point "TPB1" (+) and chassis ground (-). 8. Select item no. "277" and change data value to adjust the pedestal level and black level to be the same level.
Black Lebel Pedestal Lebel
n 480i Gain adjustment
1. Receive the 16-step gray scale component signal (480i format) with COMPUTER IN [COMPONENT] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TPR1" (+) and chassis ground (-). 4. Select item no. "7" and change data value to adjust waveform "a" to be minimum amplitude. 5. Connect an oscilloscope to test point "TPG1" (+) and chassis ground (-). 6. Select item no. "8" and change data value to adjust waveform "a" to be minimum amplitude. 7. Connect an oscilloscope to test point "TPB1" (+) and chassis ground (-). 8. Select item no. "9" and change data value to adjust waveform "a" to be minimum amplitude.
White Level
(a)
-24-
Electrical Adjustments
m Gamma adjustment
[PC-GAMMA ADJUSTMENT] 1. Receive the 100% whole-white computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode. 3. Measure luminance on the screen with the luminance meter. It is A for the reading of luminance meter. 4. Change the signal source to the 50% whole-white computer signal with COMPUTER IN [RGB] mode. 5. Select item no. "16" and change data value to make the reading of luminance meter to be A x 23%. [AV-GAMMA ADJUSTMENT] 1. Receive the 100% whole-white composite video signal with Video [Video] mode. 2. Enter the service mode. 3. Measure luminance on the screen with the luminance meter. It is B for the reading of luminance meter. 4. Change the signal source to the 50% whole-white computer signal with Video [Video] mode. 5. Select item no. "16" and change data value to make the reading of luminance meter to be B x 22%.
. White Balance adjustment
[PC WHITE BALANCE ADJUSTMENT] 1. Receive the 16-step gray scale computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode, select item no. "17" (Red) or "18" (Blue), and change data values respectively to make a proper white balance. [AV WHITE BALANCE ADJUSTMENT] 3. Receive the 16-step gray scale video signal with Video [Video] mode. 4. Enter the service mode, select item no. "17" (Red) or "18" (Blue), and change data values respectively to make a proper white balance.
Confirm that the same white balance is obtained in video and computer input.
, Common Center adjustment
1. Receive the 16-step gray scale computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode. 3. Project only red light component to the screen. 4. Select item no. "15" and change data value to obtain the minimum flicker on the screen. 5. Project only green light component to the screen. 6. Select item no. "14" and change data value to obtain the minimum flicker on the screen. 7. Project only blue light component to the screen. 8. Select item no. "13" and change data value to obtain the minimum flicker on the screen.
NOTE ON WHITE UNIFORMITY ADJUSTMENT
If you find the color shading on the screen, please adjust the white uniformity by using the proper computer and "Color Shading Correction" software supplied separately. The software can be ordered as follows;
COLOR SHADING CORRECTION ver.. 3.0 Service Parts No. 645 056 6288
-25-
Electrical Adjustments
Service Adjustment Data Table
These initial values are the reference data written from the CPU ROM to memory IC when replaced new memory IC. The adjustment items indicated with "" are required to readjust following to the "Electrical adjustments". Other items should be used with the initial data value.
PC Initial YCbCr 480i(+) 480p(+) 143 143 143 0 0 0 540 540 540 190 190 190 130 130 130 512 512 512 153 35 163 163 163 128 85 128 0 N/A N/A N/A N/A N/A N/A N/A N/A 0 2 1 254 2 1 254 2 1 254 0 0 0 0 0 0 1 0 1 0 0 0 97 118 Video NTSC PAL Detail Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Video Center Adjustment ( = R/G/B-V1)
ItemNo. Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 60 61 62 R-VIDEOCNT G-VIDEOCNT B-VIDEOCNT R-Sub-Bright G-Sub-Bright B-Sub-Bright R-Sub-Gain G-Sub-Gain B-Sub-Gain REF-R REF-G REF-B BVCOM GVCOM RVCOM G-Gamma-Shift R-Gamma-Shift B-Gamma-Shift NRS-B NRS-A R-V2 G-V2 B-V2 SubBright SubColor SubTint SubBright (Video) SubCont (Video) SubColor (Video) SubTint (Video) SubBright (480i,575i) SubCont (480i,575i) SubColor (480i,575i) SubColor (480i,575i) V-Line Color Shading Correction Setting (R1) V-Line Color Shading Correction Setting (R2) V-Line Color Shading Correction Setting (R3) V-Line Color Shading Correction Setting (G1) V-Line Color Shading Correction Setting (G2) V-Line Color Shading Correction Setting (G3) V-Line Color Shading Correction Setting (B1) V-Line Color Shading Correction Setting (B2) V-Line Color Shading Correction Setting (B3) R-Reference voltage (H) R-Reference voltage (L) G-Reference voltage (H) G-Reference voltage (L) B-Reference voltage (H) B-Reference voltage (L) Color Shading Correction ON/OFF Lamp Life Time Baud Rate Shoot Out Mode Forced NOBRAND FAN CONTROL Fan Control SW Fan Min. control (Fan 1) Fan Min. control (Fan 2)
Device M62392FP M62392FP M62392FP L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A M62392FP M62392FP M62392FP L3E6100D0A L3E6100D0A L3E6100D0A L3E7070K0A L3E7070K0A L3E7070K0A M62393FP M62392FP M62392FP M62392FP M62392FP PW168 PW168 PW168 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A L3E7070K0A
Sub-Bright Adjustment 530 530 530 Gain Adjustment [R] Gain Adjustment [G] Gain Adjustment [B]
550 550 530
560 560 550
Common Center Adjustment 512 512 512 Gamma Adjustment White Balance Adjustment [R] White Balance Adjustment [B] NRS Adjustment (up side) NRS Adjustment (down side) Video Center Adjustment (Link to Item No.1-3) 128 N/A N/A 128 50 2070 512 196 25 23 29 127 49 2070 512 197 26 23 29 Note 1: 575i = the same as PAL
512 512 512
512 512 512
128 85 128 N/A N/A N/A N/A N/A N/A N/A N/A
128 85 128 Note 1 Note 1 Note 1 Note 1 199 25 31 Note 2
Note 2: 480i = the same as NTSC 575i = the same as PAL Vertical Line Color Shading Correction
Read only 0: 9600 / 1: 19200 / 2: 38400 0: Normal / 1: Shoot out 1 0: Normal / 1: NOBRAND Range 0-1 0: Auto / 1: manual 70-210 70-210
-26-
Electrical Adjustments
ItemNo. Name Device PC Initial YCbCr 480i(+) 480p(+) 79 205 147 205 28 34 40 43 0 62 41 51 30 3 3 0 205 147 205 45 0 0 0 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 VPC3230 AD9883 AD9883 AD9883 AD9883 AD9883 AD9883 AD9883 AD9883 M62399FP M62399FP M62399FP N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 70 70 70 60 60 65 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 70 70 70 60 65 65 3 1 3 0 7 540 536 1 2 0 1 0 0 0 15 62 N/A N/A N/A N/A N/A N/A N/A N/A 3 1 3 0 7 540 536 1 2 0 1 0 0 0 15 62 N/A N/A N/A N/A N/A N/A N/A N/A Video NTSC PAL Detail Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Range 70-210 70-210 70-210 70-210 10-100 30-100 30-100 10-100 0-20 70-210 30-100 30-100 10-100 0-15 1-15 0-3
63 65 66 67 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 90 91 92 93 94 95 96 97 98 99 101 102 103 104 105 106 272 273 274 275 276 277 278 279 281 282 283 288 289 290 291 292 293 294 295 297 298 299
Fan Min. control (Fan 3) Fan Max. control (Fan 1) Fan Max. control (Fan 2) Fan Max. control (Fan 3) Temp. Low ( Sensor 1) Temp High (Sensor 1) Temp. Error (Sensor 1) Temp. Low ( Sensor 2) Fan 2 Low Speed Cooling Time at the first half period Fan 2 Low Speed Cooling Voltage at the first half period Temp. High (Sensor 2) Temp. Error (Sensor 2) Temp. Error (Sensor 1-3) Temp. Error Cooling TIme Cooling Time HighLand Mode Fan1 Speed Fan2 Speed Fan3 Speed Min. Temp. (Sensor 2) at temp. error (Sensor 1-2) Normal Fan Mode Cooling Fan Mode Service Fan Mode VPC3230 Notch Filter Select Diagonal Dot Reduction Horizontal Differential Gain Vertical Differential Gain Vertical Peaking Gain AFC other1 AFC other2 Horizontal Peaking Filter Peaking Gain Peaking Filter Coring Enable Horizontal Lowpass Filter Horizontal Lowpass Filter Chroma DOR COR SGAIN YC Delay ADC REDGAIN GRNGAIN BLUGAIN REDOFST GRNOFST BLUOFST Clamp Duration Clamp Placement RACLP GACLP BACLP FAN CONTROL 2 Eco Fan Max. Control (Fan 1) Eco Fan Max. Control (Fan 2) Eco Fan Max. Control (Fan 3) DLY3.3V_ON DLY5V_ON Eco Fan Min. Control (Fan 1) Eco Fan Min. Control (Fan 2) Eco Fan Min. Control (Fan 3) OverScan Expand Ratio (Vertical) 60Hz Expand Ratio (Horizontal) 60Hz Position (Horizontal) 60Hz
0: 20sec / 1: 22sec / ... / 20: 60sec
0: always ON / 1: 30s / 2: 60s / ... / 15: 450s 1: 30sec / 2: 60sec / ... / 15: 450sec 0: Auto / 1: ON Low / 2: ON Mid / 3: ON High Fan Speed at Manual Setting
30-100 0-2
0: Auto / 1: manual / 2: HighLand Mode
Note 1: 480i = the same as NTSC 575i = the same as PAL
Pedestal Adjustment [R] Pedestal Adjustment [G] Pedestal Adjustment [B]
0 0 0 170 71 130 100 100 79 62 71
PIXEL PIXEL PIXEL
N/A N/A N/A
1 17 513
N/A N/A N/A
Video and S-Video mode only. Progressive OFF
-27-
Electrical Adjustments
ItemNo. Name 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 Position (Vertical) 60Hz Expand Ratio (Vertical) 50Hz Expand Ratio (Horizontal) 50Hz Position (Horizontal) 50Hz Position (Vertical) 50Hz Expand Ratio (Vertical) 480i Expand Ratio (Horizontal) 480i Position (Horizontal) 480i Position (Vertical) 480i Expand Ratio (Vertical) 575i Expand Ratio (Horizontal) 575i Position (Horizontal) 575i Position (Vertical) 575i Expand Ratio (Vertical) 480p Expand Ratio (Horizontal) 480p Position (Horizontal) 480p Position (Vertical) 480p Expand Ratio (Vertical) 575p Expand Ratio (Horizontal) 575p Position (Horizontal) 575p Position (Vertical) 575p Expand Ratio (Vertical) 720p Expand Ratio (Horizontal) 720p Position (Horizontal) 720p Position (Vertical) 720p Expand Ratio (Vertical) 1035i Expand Ratio (Horizontal) 1035i Position (Horizontal) 1035i Position (Vertical) 1035i Expand Ratio (Vertical) 1080i Expand Ratio (Horizontal) 1080i Position (Horizontal) 1080i Position (Vertical) 1080i Expand Ratio (Vertical) 60Hz Expand Ratio (Horizontal) 60Hz Position (Horizontal) 60Hz Position (Vertical) 60Hz Expand Ratio (Vertical) 50Hz Expand Ratio (Horizontal) 50Hz Position (Horizontal) 50Hz Position (Vertical) 50Hz Expand Ratio (Vertical) 50Hz Expand Ratio (Horizontal) 50Hz Position (Horizontal) 50Hz Position (Vertical) 50Hz Expand Ratio (Vertical) SCART Expand Ratio (Horizontal) SCART Position (Horizontal) SCART Position (Vertical) SCART Expand Ratio (Vertical) 60Hz Expand Ratio (Horizontal) 60Hz Position (Horizontal) 60Hz Position (Vertical) 50Hz Expand Ratio (Vertical) 50Hz Expand Ratio (Horizontal) 50Hz Position (Horizontal) 50Hz Position (Vertical) 50Hz Expand ratio (Vertical) 480i Expand Ratio (Horizontal) 480i Position (Horizontal) 480i Position (Vertical) 480i Expand ratio (Vertical) 575i Expand Ratio (Horizontal) 575i Position (Horizontal) 575i Position (Vertical) 575i Expand ratio (Vertical) SCART Device PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PC Initial YCbCr 480i(+) 480p(+) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 9 15 513 385 5 23 510 382 7 22 508 382 7 36 517 383 20 40 515 384 7 14 517 384 5 23 518 383 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 1 17 513 384 5 24 519 383 10 32 517 382 18 29 517 393 10 14 525 385 5 23 519 382 7 23 517 383 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 7 14 522 384 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 5 2 17 513 383 5 24 519 383 N/A N/A N/A N/A N/A N/A N/A N/A N/A 2 17 513 383 N/A N/A N/A N/A 5 23 519 383 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Video NTSC PAL 384 N/A 5 24 519 383 Detail Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Video and S-Video mode only Progressive OFF
For Component 480i mode Progressive OFF
For Component 575i mode Progressive OFF
For Component 480p mode
For Component 575p mode
For Component and RGB 720p mode
For Component mode and RGB HDTV 1035i
For Component mode and RGB HDTV 1080i
For RGB NTSC 480i
For RGB PAL 575i
For 1080i_50Hz and RGB HDTV 1080i_50Hz
For RGB SCART Progressive OFF
For Video and S-Video only Progressive ON
For Component 480i mode Progressive ON
For Component 575i mode Progressive ON
For RGB SCART
-28-
Electrical Adjustments
ItemNo. Name 366 367 368 369 370 371 372 373 374 375 376 400 401 402 403 404 405 406 407 Expand Ratio (Horizontal) SCART Position (Horizontal) SCART Position (Vertical) SCART Expand ratio (Vertical) 60Hz Expand Ratio (Horizontal) 60Hz Position (Horizontal) 60Hz Position (Vertical) 60Hz Expand ratio (Vertical) 50Hz Expand Ratio (Horizontal) 50Hz Position (Horizontal) 50Hz Position (Vertical) 50Hz Gamma Shift Combination ON/OFF PC Frame Lock OFF Auto Grayscale black control start point Auto Grayscale black control limit point Auto Grayscale black control target point Auto Grayscale white control start point Auto Grayscale white control limit point Auto Grayscale white control target point Device PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PIXEL PC 23 518 383 10 33 508 375 21 30 512 385 1 0 31 16 0 33 56 0 Initial YCbCr 480i(+) 480p(+) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Video NTSC PAL Detail Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV For RGB SCART Progressive ON For RGB 480p
For RGB 575p
0: each source separate / 1: PC source only separate 0: ON for all source / 1: OFF at PC
-29-
Electrical Adjustments
Test Points and Locations
MAIN BOARD
K8E
K66A
K66B
K8H
IC9401 IC3561 IC3571
IC401 IC3551 IC501 IC561 TEGND2 TPR1 IC3501 TP2531 K8G IC5302 K8V K8W PART SIDE 1AA4B10C3650A TPRESET
TPB1
TPB1
TPR1
K25B
TPG1
K25R
IC531
TPG1
TP2561
K8F
K25G
K8A
IC8201 K66C TPGVS TPGHS
TEGFBK
TP103 TPVVS TE301
TP6202B
TP6202G
TP6202R
K66E
TE101
IC101
TPVHS
K48K
-30-
TPDVS TPDHS IC301
SPEAKER
COMPUTER/ COMPONENT IC5001 AUDIO-SW
L/R
AV BOARD +
IC801 FLASH ROM IC9801 RS-232C DRIVER/RECEIVER
RXD/TXD
Remark : This mark means IIC-controlled IC.
MAIN BOARD
Audio
Chassis Overview
Chassis Block Diagrams
AUDIO IC5003 AUDIO-AMP. IC501 B-PANEL DRIVER B IC9861 USB CONTROLLER
SYSTEM BUS RGB
L/R
AV
IC5002 VOLUME CONTROL
B-LCD PANEL
RESET SW
CONTROL PORT IC9401 DIGITAL TURBO IC401 COLOR CORRECTION
G-LCD PANEL
USB SYSTEM BUS IC1802 EXPANDER IC1801 EXPANDER
Y,Cb,Cr
IC531 G-PANEL DRIVER G
D-SUB_15
RGB / Y,Cb,Cr
COMPUTER/ COMPONENT RGB/Component
RGB(SCART) Y,Cb,Cr (480i, 575i) Y/C VIDEO
IC5201 RGB SELECTOR IC8201 A/D RGB
IC301 MAIN CPU, OSD, De-INTERLACE
R-LCD PANEL
IC401
IC561 R-PANEL DRIVER KEY LED KEY OPTION R
RGB/Component
S-VIDEO YUV H/V IC5303 SYNC_SW
H/V
Y/C
IC3501 NRS_SW
-31H/V/ G_SYNC
Y/C
IC101 VIDEO DECODER
IC1811/14 BUFFER IC3571 DAC
VIDEO
Video IC5301 H/V RGB_SYNC
H/V
LAMP COVER SW IC5302 G_SYNC YUV_SYNC IC1881 INVERTER IC1882 SUB CPU POWER SUPPLY
IC3561 DAC IC3551 DAC
LCD DRIVER LCD DRIVER FAN AUDIO VIDEO IC1841 EEPROM IIC BUS IC1871 COMPARATOR POWER FAIL IC8801 TEMP. SENSOR IC8802 TEMP. SENSOR IC1861 INVERTER
SW BOARD
UNIT_POWER
P.F. CONTROLLER
LAMP BALLAST
LAMP BRIDGE DIODE
UNIT_LAMP BALLAST
FAN CONTROL SWITCHING POWER SUPPLY R/C PRE AMP KEY SW LED FANS IC8821 TEMP. SENSOR
AC 100~240V
FUSE
LINE FILTER
THERMAL SW
FILTER BOARD
R/C BOARD CONT BOARD
SENSOR BOARD
AV BOARD
SCLK/SDATA
TPB1
MAIN BOARD
SCLK/SDATA
IC501
K25B
GREF,GCOAST,GCLK,GFBK,CLAMP GVS
Chassis Block Diagrams
480p,575p only Other sources
TP6202R TP6202G TP6202B
B-LCD DRIVER
B-LCD PANEL
K10D
K50A
IC5201 IC8201
A/D RGB YUV
BO GR GG GB
20,19,18
COMPUTER IN / COMPONENT IN IC301
RGB(SCART) YUV(480i, 575i)
H/V
RGB SW / SYNC SEP. IIC_2 IIC_1 DIGITAL TURBO
RO GHS DHS,DVS,DCLK GVS
CV_S
IC101
CPU FRC, CRC, OSD De-INTERLACE
DR DG DB
IC9401
COLOR SHADING CORRECTION
GO
ROUT GOUT BOUT
IC401 IC531
G-LCD DRIVER
TPG1
K25G
G_SYNC
G-LCD PANEL
13,12,11 9 4,6 2
H
DIGITAL VY DECODER VUV Y/C
CBAL_SW TPVHS TPVVS TPGHS TPGVS
Video signal processing circuit and LCD panel driving circuit
-32VIDEO
IC561
R-LCD DRIVER
TPR1
K25R
S_VIDEO
VHS,VVS,VPEN,VFIELD,VCLK,VHDREN
H/V 2,5 SYSTEM_BUS
Y/C
R-LCD PANEL
IC3521
FPRR,FPRG NRS BUFFER
IC5301
H 8 V 16 2 3 H 11 V
13 5 6
IC3551
IIC_2
15 5
FILT_480p/575p
G_SYNC 3 RGB_SYNC 11 9
15,14 16
DAC 14
S_SW
26
7
IC5302
YUV_SYNC 28 12 BUFFER <74LCX541> IIC_2
IC1881
IC3571
VIDEO IC5303
K50B IIC_2 FILT_480p/575p PC/AV_SW S_SW IIC_1
VIDEO
DAC 14-19
R/G/B_V1/V2
+
IC3531 IC3561
DAC 18,19
NRSA/NRSB
K10E
NRS_SW <4053>
TP2531
+
1
IC3531
NRS BUFFER
TP2561
MAIN BOARD
K8H K88A
IC8821
3,5
P_SCL1/SDA1
IC101
18-19 4-6 14 3 15 4 16 5 2 15 18-19 16-17 14-15 13 2 1 14 5 7 12
TEMP. SENSOR TEMP. SENSOR
TEMP. SENSOR
VIDEO DECODER
EEPROM
IC1841
NRSA/B REF_RGB
IC8801
IC8802
3.3V to 5V DAC K8A
FAN_CONT1 FAN_CONT2 FAN_CONT3 FAN CONTROL POW_ON
10
SENSOR BOARD CN202 POWER BOARD
44,116
IC3561
M_SCL1/SDA1
Always Available
Q1841 Q1842
P_SCL1/SDA1 P_SCL2/SDA2
Standby off
45,46
Always Available
M_SCL2/SDA2 CBAL_SW
Chassis Block Diagrams
System Controls
Standby off
Q1843 Q1844 3.3V to 5V AUD_SW K48K
5
IC5001
CN300
LAMP BALLAST
DAC
YUV_SYNC
IC8201
DAC
IC5302
IC3571
IC3551
A/D VOLUME SYNC_SW
B_V1/V2 G_V1/V2 R_V1/V2
IC5002
4
178 5
LAMP_PWM
4 2 9 11 4 6 3 1
AUD_PC/AV VOL PC/AV_SW FILT_480P
IC5303
LAMP_DET DIMMER ON/OFF
140 4 6
1
SUB CPU
IC1882
INVERTER
LAMP_POW Lamp-ON : H
ERROR : Open
1-2 3-4
IC4801
IC1881
NAND
2
FAN_ERR ERROR : L
ERROR : H RXL TXL Lamp Dimmer Control L = Low beam. H = High Beam SCEL Lamp-ON : L
K48L
K8811
SW BOARD SW8801 LAMP COVER SW AV BOARD K50A
1
117,180
SCLK/SDATA_PW
S&H
IC501, IC531, IC561
IC301 MAIN CPU
SCLK/SDATA
-33TURBO COLOR CORRECT
5 6
BUFFER
IC1821 IC9401 IC401
K10D
FILT_480P
IC5201
SELECTOR
IC9801
47,181 1
17-18
RXD/TXD
RS232C DRIVER RECEIVER
RXD1/TXD1
19
CONTROL PORT CPU_RESET RESET SW
173
NMI
3
OR GATE
19
IC361
BUFFER
Power-ON : H ERROR : H
8
IC351
FAN_SW
56,127
15-14
WR/RD LAMP_ERR S_SW KEY11-13
12 13 14-16
USB CONTROL K50B
TURBO_ST R/G/B_ST ON_3.3V
IC9861
USB+/USB-
USB
A1 - A21
5 6 7 2-4 9
K10E
7
OUTPUT EXPANDER
IC1802
S-VIDEO
S_SW
BUFFER
IC1811
OPTION RESISTORS
FLASH
IC801
IC5631
K8G K68B
red
17-19 15 14 16 13 12
OPTION1 OPTION2 OPTION3
KEY SWITTCH WARNING yellow LED-On: H
4
D0 - D15
LAMP_REP green red POWER
174
2
IC1871
IC1801
P_FAIL
3
OUTPUT EXPANDER
From the power fail detection diodes.
COMPARATOR
ERROR : L
IC5003
INVERTER
182
12
R_C
IC1861
1
KEY01-03 WARNING LAMP_REP POWER READY MUTE Mute-ON : H
AMP
CONTROL BOARD
R/C
K8E
K68C
R/C BOARD
RECEIVER
Q2501 15VL
Stand-by : L
2
MAIN BOARD
L2511 15VP
K50B K10E
AV BOARD
PRIMARY CIRCUIT
D2511 12V
CN201 K8B
ON_15V 16V 12V
4
16V
8 3 3 8
IC5641 9V D491,D492 D5631
6
IC5642 5V
D5641
5V_AU
4-5 4-5
5V_AU 5V 3.3V 1.8V -5V L370 5V_PW Q371 3.3V_PW 2.5V_PW D101
K25B
T101 CONVERTER TRANS.
5V
10 10
IC5631
IC491
-5V IC371 1.5V_PW Q372
2 2
-5V
Power Supply Lines
PC301
Q3582 FAN1
Stand-by : L
3
3
PC302
IC301 POWER OSC. MC201 FAN CONTROL
5VA IC392 5V_SW
7
7
PC303
4 8 8 4
MC202 FAN CONTROL
FAN2 IC102 3.3V_M
74 19 72
Power Fail: L Power Fail: L
174 3 140 178 5 6 4
5 9 9
5
15VP
MC203 FAN CONTROL
FAN3
K8A
Power-On: H
BLUE LCD PANEL
BRIDGE DIODE
CN202
P.F. CONTROL
FAN_SW FAN_CONT1
IC1802 EXPANDER IC3561 DAC IC1811 BUFFER
PWM
IC1871 COMPARATOR
K25G
Power supply circuit, Protection circuit and Fan control circuit
K66A
K66B
K66C
SW8801 LAMP COVER SW SW BOARD FN902 FN905 FN901 FN904 FN903 FN906
AC INPUT
K66D
K66E
K66F
-34UNIT_POWER FAN_CONT3 LAMP_ERR
Lamp Error: H
7 4 CN300 3 3 K48K 8
2
FAN_CONT2
16 15 14
IC301 SYSTEM CONTROL
GREEN LCD PANEL
K25R
CN101
CN102
Lamp-On: H
CN100
THERMAL SW
5V
3 1 6 4 9 2
IC1882 SUB CPU
LAMP_PWM LAMP_POW FAN_ERR
RED LCD PANEL P_SCLK1/SDA1
K6A
Lamp Error: H
1 1
IC4801 NAND
375V
PC303
5 5
15VB RXL TXL FAN1 D5612
11
PC501
4 4
IC8801 TEMP. SENSOR
Fan Error : L
IC1881 INVERTER
FAN2
FAN3
D5619
D5624
PC300
5V
SCEL
FILTER BOARD
Lamp-On: L
K48L K8811
1 2 1 2
IGNITOR
FUSE
Q5611
Fan Lock : H
1 2 1 2 1 2 1 2
IC8802 TEMP. SENSOR D5622
K8H K88A
K601
UNIT_LAMP BALLAST
IC8821 TEMP. SENSOR SENSOR BOARD
Troubleshooting
Indicators and Projector Condition
Check the indicators for projector condition.
Indicators
POWER
red/green
WARNING
red
LAMP REPLACE
yellow
Projector Condition
The projector is OFF (The AC power cord is unplugged.) .
The projector is preparing for stand-by or the projection lamp is being cooled down. The projector cannot be turned on until cooling is completed.
The projector is ready to be turned on with the POWER ON-OFF button.
The projector is operating normally.
The projector is in the Power management mode.
The temperature inside the projector is abnormally high. The projector cannot be turned on. When the projector is cooled down enough and the temperature returns to normal, the POWER indicator lights red and the projector can be turned on. (The WARNING . indicator keeps flashing.) Check and clean the Air filter.
The projector has been cooled down enough and the temperature returns to normal. When turning on the projector, the WARNING indicator stops flashing. Check and clean the air filters.
The projector detects an abnormal condition and cannot be turned on. Unplug the AC power cord and plug it again to turn on the projector. If the projector is turned off again, disconnect the AC power cord and contact the dealer or the service center for service and checkup. Do not leave the projector on. It may cause electric shock or a fire hazard.
· · · lights green.
· · · flashes green.
· · · lights red.
· · · flashes red.
··· off
When
the life of the projection lamp draws to an end, the LAMP REPLACE indicator lights yellow. When this indicator lights yellow, replace the projection lamp with a new one promptly. Reset the Lamp replace counter after replacement of the lamp.
-35-
Troubleshooting
No Power
This projector provides a function which can be specified a defective area simply by indicating the LEDs on the control panel. Connect the AC cord and press the Power button once and then check the LED indication. - When all the LED indicators are not lighting, the symptom indicates that the primary power supply circuit does not operate properly. Check the power primary circuit and parts as follow;
AC cord F601 (Fuse) Power board SW902 (Thermal sw.) ......short in normal SW902 opens when the surrounding temperature of the switch exceeds 100°C.
- When the WARNING(red) and POWER(red) indicators are flashing, the symptom indicates that the projector detected an abnormal temperature risen inside the projector. Check the air filters and remove the object near the intake and exhaust fan openings, and wait until the POWER indicator stops flashing, and then try to turn on the projector.
The internal temperature is monitored by sensor ICs, IC8821 on Sensor Board, IC8801 and IC8802 on Main Board.
- When the WARNING (red) indicator lights, the symptom indicates that the projector detected an abnormality in the cooling fan operation or in the power supply secondary circuits. Check fan operation and power supply lines, and the driving signal status.
An abnormality occurs on the secondary power supply lines. Power failure detection diodes detect abnormal voltage on the power supply circuits. POWER_FAIL (Error:L) signals are sent to pin 174 of IC301(System Controller) via IC1871(Comparator). Check the shortage of secondary circuits, ICs, condensers, etc. Check power supply lines, 15VP, 9V, 3.3V and 1.8V on the Main Board. An abnormality occurs on the fan control circuits. Power failure detection diodes detect the fan operation stop. Check FN901, FN902, FN903, FN904, FN905, FN906 and peripheral circuit. Check fan's power supply lines and detection diodes D5612, D5619 and D5624. Check fan lock signal(Lock:H) and Q5611, D5622 and peripheral circuit. An abnormality occurs on power starter signals (FAN_SW, 5V_SW, ON_15V). FAN_SW signal (Power-on:H) is output from pin 19 of IC1802 and applied to the Power Board. It drives the power oscillation circuit and power supply for the cooling fans in Power Board. 5V_SW signal(Power-on:H) is output from pin 74 of IC301 and sent to Q3582, then 5VA line is supplied. ON_15V signal(Power-on:H) is output from pin 72 of IC301 and sent to Q2501, then 15VL line is supplied. An abnormality occurs on Lamp drive signal (LAMP_POW, LAMP_ERR). - LAMP_POW signal(Power-on:H) is output from pin 140 of IC301 and sent to IC1882 via IC4801. SCEL signal(Lamp-on:L) is output from pin 4 of IC4801 via IC1881 and sent to Lamp Ballast Unit through SW8801(Lamp Cover SW). - TXL signal is output from pin 3 of IC1882 and sent to Lamp ballast Unit via IC1881. (TXL signal is applied for lamp power control. Lo: Low power, Hi: High power) - RXL signal(Lamp status signal) is output from Lamp Ballast Unit and sent to pin 4 of IC1882 via IC1881, then LAMP_ERR signal is output from pin 7 of IC1882 and sent to IC301 via IC1811. If an abnormality occurred on the lamp ballast unit, RXL signal and LAMP_ERR signal become "H" and then IC301 shuts down the power supply circuit.
Lamp cover switch
Make sure that the lamp cover is mounted correctly. If not or the lamp cover removed, the lamp does not light on for the safety. Check the lamp cover and lamp cover switch (SW8801).
Reset switch
The microprocessor inside the projector may occasionally malfunction and does not allow any controls. In this case, press the reset switch on the rear panel with a sharp tool to restart the projector.
-36-
Troubleshooting
No Picture Check following steps.
No picture with all of input sources No Yes Check signal processing stage and LCD driving stage;
Check RGB S&H signals at test points TPR1, TPG1, TPB1. Check NRS signals at test points TP2531 and TP2561. Check power supply circuit 15VP and peripheral circuit. Check ICs IC501, IC531, IC561, IC3531, IC401, IC9401, IC301 and peripheral circuit.
No picture with Computer Yes RGB input source No
Check PC source selecting stage;
Check IC5201 and peripheral circuit on the AV board. RGB signals are selected at RIN1/GIN1/BIN1 of IC5201 and sent to IC8201, A/D converter IC. Check RGB signals at test points TP6202R/G/B. H/V sync signal is output from IC5201 and sent to IC301 through IC5301 and IC5303. GSYNC signal of the source without H/V sync signals is output from IC5201, and sent to IC5301 and IC5302, then sync separated signals are sent to IC301 through IC5303. PC/AV_SW signal is applied on IC5303, output from pin 14 of IC3551 for selecting sync signals. Check H/V_SYNC signal at test points TPGHS/TPGVS.
No picture with Computer Yes RGB(Scart) input source No Yes
Check PC source selecting stage;
RGB(Scart) signals are sent to IC101, Video decoder IC. Check RGB signals at pin 3, 2 and 1 of IC101. CV_SCART signal for sync is sent to pin 72 of IC101. Check CV_SCART signal and test points TPVHS/TPVVS.
No picture with S-VIDEO input source No
Check AV source selecting stage;
Check S-video signal (Y/C) on the AV and Main board. Check IC101, Video decoder, and peripheral circuit. S_SW signal (S-Video cable is connected:L) is applied on pin 9 of IC1811.
No picture with Component input source No
Yes
Check AV/PC source selecting stage;
Check component signal (Y/Cr,Pr/Cb,Pb) on the AV and Main board. Component signals (480i/575i format) are sent to IC101 directly. Component signals (480p/575p format) are selected at RIN2/GIN2/BIN2 of IC5201 and other HDTV format signals are selected at RIN1/GIN1/BIN1 of IC5201, and then sent to IC8201. Check IC5201, IC8201, IC101 and peripheral circuit. Sync signals of 480i/575i format signal are output from IC101. Sync signals of other format signals are output from IC5302. Check H/V_sync signal at test points TPGHS/TPGVS/TPVHS/TPVVS.
No picture with video input source
Yes
Check AV source selecting stage;
Check composite video signal (Video) on the AV and Main board. Check IC101, Video decoder, and peripheral circuit.
-37-
Troubleshooting
No Sound Check following steps.
Is the audio signal observed at pins 3 and 13 of IC5001? Yes No Check AUD_PC/AV switching circuit. Check IC5001, audio-sw IC, and peripheral circuit. AUD_PC/AV_SW (PC:H) signal is applied on pin 10 of IC5001 through Q5003, sent from pin 12 of IC3551.
Is the audio signal observed at pins 5 and 8 of IC5003? Yes
No
Check Audio amp.and control circuit. Check IC5003, audio-amp IC, and peripheral circuit. MUTE signal (Mute:L) is applied on pin 4 of IC5003, sent from pin 12 of IC1801.
VOLUME signal is applied on pin 2 of IC5002., sent from pin 13 of IC3551. Check 5V_AUD power supply line.
Check audio output circuit. Check speaker, connection of the terminal "K8F".
Audio signal processing circuit
AV BOARD
L
IC5001
AUDIO-SW <4052>
8 9
MAIN BOARD
IC5002 Q5001
VOLUME
1
IC5003
AMP.
2 SP901
PC AUDIO-IN AV AUDIO-IN
12 13 14 1 5 10
R L
10
L R
3
+
2
3
+
4
5 8
1 3
+ -
R
11
Q5004 Q5002
Mute: L
K8F
K50B IC301
SYSTEM CONTROL
K10E
Q5006 Q5003
AUD_PC/AV_SW 12 P_SCLK2 P_SCDA2 VOLUME 13 Mute: H MUTE 12
IC3551
D/A CONVERTER
IC1801
OUTPUT EXPANDER <74LCX574>
DATA BUS
AUDIO-SW Switching Logic
PC AUD_PC/AV_SW at IC3551 AUD_PC/AV_SW at IC5001 H L AV L H
-38-
Waveforms
VIDEO-IN Analog H-SYNC Analog V-SYNC
Digital H-SYNC
Digital V-SYNC
NRS
R-S&H OUT
G-S&H OUT
B-S&H OUT
-39-
Control Port Functions
System Control & I/O Port Table (IC301)
Pin No. Name Function Name Function Polarity I/O
178 115 44 116 45 46 117 180 173 111 40 174 41 175 112 229 71 139 200 140 201 141 72 142 119 182 47 182 189 55 207 257 194 63 132 62 61 131 193 247 60 246 59 130 129 192 128 58 191 190 245 244 242 241 187 53 124 186 240 123 185 122 51 184 121 50 49 183 127 56 118
Port A7 Port A6 Port A5 Port A4 Port A3 Port A2 Port A1 Port A0 Port B7 Port B6 Port B5 Port B4 Port B3 Port B2 Port B1 Port B0 Port E7 Port E6 Port E5 Port E4 Port E3 Port E2 Port E1 Port E0 Port F7 Port F6 Port F5 Port F4 Port F3 Port F2 Port F1 Port F0 A19 A19 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 RD WR BHEN
LAMP_PWM MUPO_ON M_SCL1 M_SDA1 M_SCL2 M_SDA2 SCLK SDATA NMI IRM_STB 3L_EN POWER_FAIL A23 A22 A21 A20 5V_SW DCLK_SW VHDPEN LAMP_POW USB_VBUS USB_RST ON_15V USB_EN IRRCVR1 IRRCVR0 RXD TXD CS0 CS1 DCLKEXT MCLKEXT A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 RD WR BHEN
PWM Output to Sub-CPU
PWM
3 Line Serial Bus Clock 3 Line Serial Bus Data Reset SW Input 3 Line Serial Bus Strobe 3 Line Serial Bus Enable Power Fail Detection Address Bus 23 Address Bus 22 Address Bus 21 Address Bus 20 Standby 5V OFF IC101 Video Decoder Enable Lamp ON to Sub-CPU USB Connector Detection USB Device Reset Output Standby 15V OFF USB Device Enable Output IR Receiver Input 1 IR Receiver Input 0
Error = L
O I I/O O I/O O O O I O O I
Standby = L
Lamp-ON = H Not used Standby = L Not used
I/O Expander Chip Select (Output) I/O Expander Chip Select (Input) D-port Clock External Input Memory System Clock Input Address Bus 19 Address Bus 18 Address Bus 17 Address Bus 16 Address Bus 15 Address Bus 14 Address Bus 13 Address Bus 12 Address Bus 11 Address Bus 10 Address Bus 9 Address Bus 8 Address Bus 7 Address Bus 6 Address Bus 5 Address Bus 4 Address Bus 3 Address Bus 2 Address Bus 1 Address Bus 0 Data Bus 15 Data Bus 14 Data Bus 13 Data Bus 12 Data Bus 11 Data Bus 10 Data Bus 9 Data Bus 8 Data Bus 7 Data Bus 6 Data Bus 5 Data Bus 4 Data Bus 3 Data Bus 2 Data Bus 1 Data Bus 0 Read Enable Write Enable High Byte Enable
Not used Not used
O O O O I O O O I I I O O O I I
Not used Not used Not used
I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
-40-
Control Port Functions
Pin No. Name Function Name Function Polarity I/O
188 126 125 54 177 230 238 120 48 233 133 290 248 232
ROMOE ROMWE RAMOE RAMWE Port C1 Port C0 EXTINT NMI RESET ADR24B MODE3 MODE2 MODE1 MODE0
ROMOE ROMWE RAMOE RAMWE CS3 CS2 EXTINT RESET ADR24B NODE3 MODE2 MODE1 MODE0
ROM Output Enable for Flash ROM ROM Write Enable for Flash ROM RAM Output Enable RAM Write Enable Chip Select 3 Chip Select 2 External Interrupt Input