LG BN315 User manual

AUTO
SOURCE
POWER
KEYSTONE
KEYSTONE
MENU
OK
DLP PROJECTOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : RE-058B
MODEL : BN315
MODEL : BN315-JD
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
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CONTENTS
CONTENTS .......................................................................................................2
SAFETY PRECAUTIONS .................................................................................3
CONTROL DESCRIPTIONS .............................................................................4
REPLACING OF LAMP ....................................................................................9
SPECIFICATIONS ...........................................................................................11
ADJUSTMENT INSTRUCTION.......................................................................13
PRINTED CIRCUIT BOARD ...........................................................................18
BLOCK DIAGRAM..........................................................................................21
EXPLODED VIEW...........................................................................................22
EXPLODED VIEW PARTS LIST .....................................................................23
REPLACEMENT PARTS LIST........................................................................24
SVC. SHEET .......................................................................................................
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SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in
the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to
prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during
the servicing of a receiver whose chassis is not isolated from
the AC power line. Use a transformer of adequate power rating
as this protects the technician from accidents resulting in
personal injury from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film
Resistor, over 1W), keep the resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Due to high vacuum and large surface area of picture tube,
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.
X-RAY Radiation
Warning:
To determine the presence of high voltage, use an accurate
high impedance HV meter.
Adjust brightness, color, contrast controls to minimum.
Measure the high voltage.
The meter reading should indicate
23.5 ±1.5KV: 14-19 inch, 26 ±1.5KV: 19-21 inch,
29.0 ±1.5KV: 25-29 inch, 30.0 ±1.5KV: 32 inch
If the meter indication is out of tolerance, immediate service
and correction is required to prevent the possibility of
premature component failure.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc.,
to be sure the set is safe to operate without damage of
electrical shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source,
connect an electrical jumper across the two AC plug prongs.
Place the AC switch in the on position, connect one lead of
ohm-meter to the AC plug prongs tied together and touch other
ohm-meter lead in turn to each exposed metallic parts such as
antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1MΩ and 5.2MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC
voltage measurements for each exposed metallic part. Any
voltage measured must not exceed 0.75 volt RMS which is
corresponds to 0.5mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
The source of X-RAY RADIATION in this TV receiver is the
High Voltage Section and the Picture Tube.
For continued X-RAY RADIATION protection, the
replacement tube must be the same type tube as specified in
the Replacement Parts List.
1.5 Kohm/10W
To Instrument’s
exposed
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF
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Main Body
Connecting Part
AUTO
SOURCE
POWER
KEYSTONE
KEYSTONE
MENU
OK
Indicators
Front remote control sensor
Power button
Foot adjusting button
Foot adjusting button
Rear remote control sensor
Control panel
* The projector is manufactured using high-precision technology. You may, however, see on the Projector
screen tiny black points and/or bright points (red, blue, or green). This can be a normal result of the
manufacturing process and does not always indicate a malfunction.
Focus ring
Zoom ring
Lens cover
* Push the lens cover into the inside after pulling it open into the
front. (If you mount on the ceiling, after pushing the cover, the lens
cover is installed. If not, the cover may overlap projecting lens.)
HDMI S-Video
SVC Only
RGB Input
(PC/DTV) Component(Pr, Pb, Y)
Video
AC IN
Kensington Security
System Connector
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CONTROL DESCRIPTIONS
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Control Panel
AUTO
SOURCE
POWER
MENU
KEYSTONE
KEYSTONE
OK
POWER Button
/, KEYSTONE+/- Button
MENU Button
Selects or closes menus.
AUTO Button
/ Button
Adjusts functions of menus.
SOURCE Button
Switches to RGB, HDMI, Video, S-Video, Compoment mode.
A OK Button
Checks present mode and
saves the change of functions.
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Remote Control
POWER
MENU SOURCE
AUTO
BLANK ARC
STILL
OK
KEYSTONE
KEYSTONE
POWER Button
SOURCE Button
KEYSTONE+/-, D / EButton
AOK Button
ARC Button
STILL Button
AUTO Button
BLANK Button
F /GButton
MENU Button
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* Lamp indicator, operation indicator and temperature indicator at the top of the projector show the user the operating status
of the projector.
AUTO
SOURCE
POWER
VOL
VOL
MENU
OK
Lamp Indicator
Temperature Indicator
Operation Indicator
Projector Status Indicators
Operation Indicator
Lamp Indicator
Temperature Indicator
Orange
Green(flashing)
Green
Orange(flashing)
Off
Red
Red(flashing)
Green(flashing)
Orange
Red
Red (flashing)
Standby.
Lamp is starting up.
Unit is in operation (Lamp is turned on)
Projector lamp is cooling (1 min. 30 sec.)
Power off.
Projector lamp is reaching the end of its life and needs
to be replaced with a new lamp. (over 2000 hours)
The projector is experiencing an error. Retry Power On
again later. If lamp indicator is red (flashing) again, con-
tact the service center.
The lamp cover is open.
A high temperature state has been detected. Turn the
Projector off.
The Projector has turned off due to excessive heat.
Power has turned off due to problem with the internal
cooling fan. Contact your service center.
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Accessories
Optional Extras
POWER
MENU SOURCE
AUTO
BLANK ARC
STILL
OK
KEYSTONE
KEYSTONE
* Contact your dealer to purchase these items.
* When applying a ceiling installer, use only the ceiling installer for projector.
* Contact your service personnel for replacing of lamp.
Remote Control
Power Cord Video Cable
Owner’s Manual
Computer Cable
SCART to RCA jack (option)
Lamp
Portable Bag
S-Video Cable
Projection Screen
1.5V
1.5V
2 Batteries (size AAA)
Ceiling installer for projector
HDMI Cable Component Cable
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Lamp Replacement
Be careful when replacing lamp
The projector lamp is rated for approximately 2000 hours. You can see the used lamp
time in the LAMP TIME section of the Menu. You must replace the lamp when:
- The projected image gets darker or starts to deteriorate.
- The lamp indicator is red.
- The message “Replace the lamp” appears on the screen when turning the
projector on.
- Press the POWER button on the control panel or remote control to turn off power.
- If the operation indicator LED is orange and blinking, do not disconnect the main supply until the operation indicator LED
is lit up constantly (orange).
- Allow the lamp to cool for 1 hour before replacing it.
- Replace only with the same type lamp from an LG Electronics Service Center. Using another manufacturers lamp may
cause damage to the Projector and lamp.
- Pull out the lamp only when replacing the lamp.
- Keep the lamp unit out of reach of children. Keep the Lamp away from heat sources such as radiators, stoves etc.
- To reduce the risk of fire do not expose the lamp to liquids or foreign materials.
- Do not place the lamp near any heat source.
- Make sure the new lamp is securely tightened with screws. If not, the image may be dark or there could be an increased
risk of fire.
- Never touch the lamp unit glass otherwise image quality may be compromised or lamp life maybe reduced.
To obtain a replacement Lamp unit
Check the lamp model and then purchase it from an LG Electronics Service Center.
Using another manufacturers lamp may cause damage to the projector.
Lamp unit disposal
Dispose of the used lamp by returning it to the LG Electronic Service Center.
<Front panel of the Projector>
Lamp indicators
REPLACING OF LAMP
<Reset Lamp time>
1. In a state of Set-on, excute as follow.
2. Press the OK button on the projector and OK button on the remote control simultaneously (About 5 seconds).
3. Press the OK button on the projector or OK button on the remote control. Lamp time will be reset.
4. Press the Menu button to exit.
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1Turn off the projector and unplug the power cable.
Carefully place on a cushioned surface.
(Allow the lamp to cool for 1 hour before
removing the used lamp from the projector.)
2Unscrew the screws from the lamp cover using a
screwdriver.
Lamp case bolt
3
After lifting the lamp cover off, remove the two
retaining screws on the lamp case with a screw-
driver. 4Lift the lamp up by the attached knob.
5Pull out the handle slowly and remove the lamp
case. 6Insert the new lamp gently into the correct position.
Make sure it is inserted correctly.
7Tighten the screws you removed in step 3.
(Make sure they are fixed firmly.)
8Close the lamp cover and install the screws from
step 2 to install the cover.
(If the lamp cover is not installed correctly the unit will not
power on.)
Replacing the Lamp
Bolt
Knob
Using another manufacturers lamp may cause damage to the projector or lamp.
Make sure the lamp cover is securely fastened. If the lamp cover is not installed correctly the unit will not power on.
If this fault persists contact an LG Authorized Service Center.
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SPECIFICATIONS
NOTE : Specifications and others are subject to change without notice for improvement .
AScope
This standard can be applied to the DLP Projector related to BN315-JD Model.
ATest Condition
1) Temperature : 25°C±5°C (Only CST is 40°C ±2°C )
2) Relative Humidity: 65±10%
3) Power Voltage: Standard input voltage (100-240V~, 50/60Hz)
4) Use the parts only designated in B.O.M.,PARTS SPEC.,or drawings.
5) Follow each drawing or spec for spec and performance of parts,based upon P/N of B.O.M
6) Warm up TV set for more than 30min. before the measurement.
ATest and Inspection Method
1) Performance : Follow the Standard of LG TV test
2) RCA JACK performance: Follow the standard of LG
3) Standards of extra requirement
SAFETY:CB (EN55013),
Electric wave:CE (EN55020)
AGeneral Specification
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No. Item
Video input applicable system
Power
Input Voltage
Market
Screen size
Aspect ratio
Operating Temperature
Operating Humidity
Storage Temperature
Storage Humidity
1) NTSC M
2) NTSC 4.43
3) PAL
4) PAL M
5) PAL N
6) SECAM
7) NTSC-PB
SMPS
100V(-10%) - 240(+6%)V~, 50/60Hz
World wide
Full(16:10)/ 16:9/ 4:3/ Zoom1/ Zoom2
16:10
0
-20
40
75
60
85
deg
%
deg
%
3.579545 / 60Hz
4.433618 / 60Hz
4.433618 / 50Hz
3.575611 / 60Hz
3.582056 / 50Hz
4.286 / 50Hz
4.433618 / 60Hz
1
2
3
4
5
6
7
8
9
10
Specification
Min Typ Max Unit
Remark
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AFeature and function
No. Item
REMOCON
DVI Input
RGB Input
Component input
Composite input
S-video input
RS232 Port
Local Key
Picture, Gamma
Picture, User Control
ACC
Display mode
Sound
OSD Language
NEC Code
1 Digital RGB
1 Separate
1 Y, PB, PR
480i, 480p, 720p, 1080i, 576i,576p
1 480i, 576i
1 480i,576i
1
Menu, Source, Auto, OK, D, E, G(keystone+),
F(keystone-), Power
Normal/ Film/ Sports
Contrast/ Brightness/ Color/ Tint/ Sharpness
Cool/ Normal/ Warm
Full(16:10)/ 16:9/ 4:3 / Zoom1/ Zoom2
no
Korean/ English/ Deutsch/ Italiano/ Espanol/
Chinese/ French/ Swedish/ Portuguese
LGE Code
DVI-D
D-Sub 15 pin
Y, Pb, Pr Phone Jack
Y Phone Jack
S-VIDEO jack
Earphone jack(only for download)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Specification
Min Typ Max Unit
Remark
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1. Application Object
This instruction is for the application to the DLP Projector
(Model : BN315-JD).
2. Notes
(1) The power source insulation of this DLP Projector is not
charging type and you may not use the transformer for
insulation. It is advised to use an insulation transform
between the power supply cable and power input of the set
to protect the test equipment.
(2) The adjustment must be performed under the correct
sequence.
(3) The adjustment must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity.
(4) The input voltage of the receiver must keep 110V~, 60Hz
during adjustment.
(5) The set must be on for 5 minutes prior to any adjustment.
After receiving possible 100% white pattern, it is operated
preliminary.
3. Composition of Adjustment Mode
(1) Pressing the adjust key on the service remote will open or
close the service menu.
(2) Composition of adjustment mode : In pressing early Adjust
showing screen set
(3) As shown <Fig. 1>, use the CH+ (D),CH- (E) key, select
to item press the ENTER or VOLUME key to enter the item
you wish to adjust.
(4) Press the ADJ key to exit the service menu.
(5) Preparation for Adjustment
1) Power is connected in set to be power on.
2) Do heat run 5minutes.
4. Folding Mirror Adjustment
4-1. Before adjusting, check the position of
Folding MIrror
Check the position of Folding Mirror in the base of up /
down / left / right surface. (Fig. 2)
(1) Check the Lower Position
As shown <Fig. 2>, fix lower position of mirror so they are
vertically aligned with the base surface.
(2) Check the Left / Right Position
After checking the lower position, as shown <Fig. 3>, fix
the sides so they are vertically aligned with the base
surface.
4-2. Illuminator Adjustment Sequence
After putting optical engine on JIG, check the mirror part.
Check the full white screen and make adjustments in the
following sequence.
(1) Up and Down Adjustment
1) Turn screw (A) up / down adjustment to the right and
mark where the image is aligned.
2) Turn screw (A) up / down adjustment to the left and
mark where the image is aligned.
ADJUSTMENT INSTRUCTION
<Fig.2> Check the Lower Position of Folding Mirror
<Fig.3> Check the Left / Right Position of Folding Mirror
<Fig. 1> OSD of Adjustment Mode
<Fig.4> Illuminator Adjustment Part by Folding Mirror
OPTIC CHECK FWHITE G
RGB GAIN/OFFSET
COMPONENT GAIN/OFFSET
CWI
WITHE BALANCE
DMD
Manual CCA G
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3) Turn screw (A) up / down adjustment to the right / left
and mark where the image is aligned. Fix the
adjustment screw in position.
(2) Left and Right Adjustment 1
1) Turn screw (B)Left / Right adjustment to the right and
mark where the image is aligned.
2) Turn screw (B) Left / Right adjustment to the left and
mark where the image is aligned.
3) Turn screw (B)Left / Right adjustment to the right / left
and mark where the image is aligned. Fix the
adjustment screw in position.
(3) Left and Right Adjustment 2
1) Turn screw (C)up / down adjustment to the right and
mark where the image is aligned.
2) Turn screw (C) up / down adjustment to the left and
mark where the image is aligned.
3) Turn screw (C)up / down adjustment to the right / left
and mark where the image is aligned. Fix the
adjustment screw in position.
(4) Final Adjustment
Fix the adjustment screw in position. 1), 2), 3) adjustment
twice and find the optimum position. Check the image with
the naked eye for optimum alignment.
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Step 1 Step 2 Step 3
<Fig.5> Illuminator up / down Adjustment Sequence
Step 1 Step 2 Step 3
<Fig.6> Illuminator Left/Right Adjustment Sequence 1
Step 1 Step 2 Step 3
<Fig.7> Illuminator Left/Right Adjustment Sequence 2
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5. Caution for DMD
(Digital Micro-mirror Device)
5-1. Caution for DMD ESD
(1) Connector the grounding to prevent a damage of ESD
(Electrostatic Discharge) when handing the DMD.
(2) Wear a wrist strap to connect the ESD grounding in flesh
necessarily.
(3) Connect the ESD ground to workstation and an electric
conductor.
(4) Save the DMD after getting rid of a static electricity. Keep
it at an exclusive case when moving it When grounding,
open the case.
(5) Put on gloves for preventing static electricity.
(6) All work is done at static free location. Attach the tape or
remove a dust on the DMD front or DMD back pin
5-2. Caution for DMD Clean
(1) Follow the procedure and caution to prevent the screen
from being scratched.
(2) When DMD glass stains with dust, polish the front and
back DMD glass with soft cloth. Then, do it again after
rotating 180 degree the DMD. If necessary, keep under
observation.
(3) Don’t clean the DMD with the high pressure. The static
electricity and pressure will damage the DMD.
*TI reference : DMD Handing Specification, DMD Cleaning
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Up/down
screw A
Right
(tighten
direction)
Adjustment
part
Screen state
Initial state State after adjusting
Screw
direction Description
At first, upside illuminator goes down
and right illuminator also goes down in
detail.
Left
(loosen
direction)
At first, downside illuminator goes
down and left illuminator also goes
down.
left/right
screw B
Right
(tighten
direction)
At first, left illuminator goes down and
downside illuminator also goes down.
Left
(loosen
direction)
At first, right illuminator goes down and
upside illuminator also goes down.
left/right
screw C
Right
(tighten
direction)
At first, left illuminator goes down and
downside illuminator also goes down.
Left
(loosen
direction)
At first, right illuminator goes down and
upside illuminator also goes down.
4-3. Illuminator Phenomenon Adjustment
Illuminator goes down direction Illuminator goes down area
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6. RGB Gain/Offset Adjustment
6-1. Required Test Equipment
(1) PC Pattern Generator 1EA
(2) User’s Remote control 1EA
(3) Remote control for adjustment 1EA
6-2. Sequence of Adjustment
(1) Power on the Set.
(2) Press the Input selection key on the remote control for
user to select the RGB input.
(3) Insert A-PC(D-sub) output Jack to SET.
(4) Set the mode and pattern of Pattern generator as below
- MODE : 1024 x 768, 60Hz (XGA, 60Hz)
- Pattern : SMPTE 70% Color Bar pattern
(5) Automatic adjustment : Press the adjust Key on the
service remote control to select “RGB GAIN/OFF SET”.
Press the Enter key to select “AUTO Gain SET” and press
the Enter key.
7. COMPONENT Gain/Offset Adjustment
7-1. Required Test Equipment
(1) PC Pattern Generator 1EA
(2) User’s Remote control 1EA
(3) Remote control for adjustment 1EA
7-2. Sequence of Adjustment
(1) Power on the Set.
(2) Press the Input selection key on the remote control for
user to select the Component input.
(3) Insert Component output Jack(Y, Pb, Pr) of Pattern
generator to SET.
(4) Set the mode and pattern of Pattern generator as below
- MODE : 1280 x 720, 60Hz (720p, 60Hz)
- Pattern : 70% SMPTE Color Bar pattern
(5) Automatic adjustment : Press the adjust Key on the
service remote control to select “RGB GAIN/OFF SET”.
Press the Enter key to select “AUTO Gain SET” and press
the Enter key.
8. EDID Data input
8-1. Required Test Equipment
(1) PC, DDC adjustment Jig(PC serial to D-sub connection
machinery)
(2) DDC record S/W (EDID Data Write & Read)
(3) D-sub terminal
8-2. Preparation for Adjustment & Setting
of the device
(1)Set like [Fig. 10], PC and JIG
(2) Practice of DDC record S/W(EDID Data Write & Read)
9. CWI/White Balance Measurement
Condition
(1) CWI and White Balance is adjusted using the measurement of
color coordinate. So periodically adjust within time set and you
should provide the replacement equipment to use the
correction.
(2) Adjust the screen size to a minimum of 40 inches.
(3) Place the CL-200 on the center of projection screen.
(4) Make the measurement condition under 1Lux for CL-200
to measure the correct color coordinate.
10. CWI Adjustment
10-1. Setting of the Device
Set the equipment as <Fig. 11>.
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<Fig 8> SMPTRE Color Bar pattern
<Fig. 9> SMPTRE Color Bar pattern
<Fig. 10> Device setting diagram for EDID data input
PC
JI G
DLP PJTR SET
Equipment to monitor Lx,X,Y data
Illuminometer
Set
Set fixing device
PC input
(Computer of Pattern)
SCREEN
<Fig.11> Device setting diagram for CWI adjustment
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10-2 Required Test Equipment
(1) Illuminometer (Model : CL-200) 1EA : Chromaticity
measurement from projection screen center.
(2) PC input equipment (Pattern Generator, PC)
(3) Set fixing device 1EA
(4) Remote control 1EA
10-3. Preparation for Adjustment
(1) Connect the power cord and turn the set on, then connect
PC or Pattern to PC input.
(1) Connect the power cord and turn the set on, then connect
it to a PC input.
(2) After entering the instart, enter the CWI menu by using
the Adjust key on the remote control for adjustment.
(Default value : 330)
(3) After entering CWI, a full red screen will be displayed
when selecting “EXIT”. At this time, check the value of the
Illuminometer color coordinates(X,Y) on the center.
10-4. Sequence of adjustment
(1) Adjust CWI to the left/right value by using the volume
buttons at the first adjustment value is preset to 330.
(2) Illuminometer color coordinates is changed when pressing
volume button.
(3) X coordinates usually get maximum value at
X=0.637±0.02 and Y coordinates usually get minimum
value at Y=0.350±0.02. Adjust this value by pressing
volume button on the remote control. Adjustment range is
usually 260~270 and average value is 268.
(4) Check the red pattern whether it is entirely uniform. If it is
uniform, press “ENTER” button to exit after pressing “EXIT”
button (FULL-RED disappear.).
11. White Balance Adjustment
11-1. Required Test Equipment
(1) Illuminometer (Model : CL-200) 1EA : Chromaticity
measurement from projection screen center
(2) Pattern Generator (DVI input)
(3) Set fixing device 1EA
(4) Remote control 1EA
11-2. Equipment Composition
(1) Compose the equipment as <Fig. 13>
- Cable-1 : Cable that connect D-Load JACK of
BN315(SET) with COM1-port(RS-232) of PC
- Cable-2 : CL-200 Cable that connect D-out of CL-200 with
COM2-port (RS232) of PC.
11-3. Sequence of adjustment
(1) Change input mode of set to component .
(2) Input component 720p(1280x720@60)
(3) Receive 16-gray pattern.
(4)After connecting as above, execute “CCA.exe” program at
PC for adjustment.
(5) When program is executed, un-check the “Medium
inspection”.
(6) Click the Auto Measure then white balance is adjusted
automatically.
(7) If adjustment is completed, it is displayed “OK” on window.
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Set
Set fixing device
PC for adjustment automaticlly
Setting CCA(automatic adjustment program)
cable -1
cable -2
Measurement standard : Lens shift -> Center (0%)
<Fig.13> Device setting diagram
Colow wheel index
CWI = 268
<Fig.12> TEST pattern (RED pattern)
(5)
(7)
(6)
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PRINTED CIRCUIT BOARD
MAIN(TOP)
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MAIN(BOTTOM)
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CONTROL
DMD(TOP)
DMD(BOTTOM)
SENSOR
TEMP SENSOR
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