LG HS200 User manual

DLP PROJECTOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : FM91A
MODEL : HS200/HS200G HS200/HS200G-JE
MODEL : HS201/HS201G HS201/HS201G-JE
North/Latin A erica http://aic.lgservice.co
Europe/Africa http://eic.lgservice.co
Asia/Oceania http://biz.lgservice.co
Internal Use Only
Printed in KoreaP/NO : MFL62350102 (0912-REV00)

Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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CONTENTS
CONTENTS .......................................................................................................2
SAFETY PRECAUTIONS .................................................................................3
SPECIFICATIONS.............................................................................................4
ADJUSTMENT INSTRUCTION.........................................................................5
BLOCK DIAGRAM ..........................................................................................11
EXPLODED VIEW...........................................................................................13
SVC. SHEET ...................................................................................................14

Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3 LGE Internal Use Only
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 lsolation 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 circuitary that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this monitor 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.
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 positioin, 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 ot 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 esposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
3.5mA.
In case any measurement is out of the limits sepcified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current ot Check circuit
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

- 4 -
Copyright © 2009 LG Electronics. Inc. All right reserved.
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SPECIFICATION
NOTE : Specific tions nd others re subject to ch nge without notice for improvement .
4. General Specification
1. Application range
This specific tion is pplied ll of the DLP Projector FM91A
ch ssis.
2. Require ent for Test
E ch p rt is tested s below without speci l ppointment.
1) Temper ture : 25±5ºC, CST : 40±2ºC
2) Rel tive Humidity : 65±10%
3) Power Volt ge : St nd rd input volt ge (100-240V@50/60Hz)
* St nd rd Volt ge of e ch products is m rked by models.
4) Specific tion nd perform nce of e ch p rts re followed
e ch dr wing nd specific tion by p rt number in
ccord nce with BOM.
5) The receiver must be oper ted for bout 30 minutes prior to
the djustment.
3. Test ethod
1) Perform nce: LGE TV test method followed
2) Dem nded other specific tion
- S fety: CE specific tion(EN55022 Cl ss A)
- EMC:CE(EBN60950-1)
No. Item Specific tion Rem rk
Min M x Unit
1. Video input pplic ble system 1) NTSC M 3.579545 / 60 Hz
2) NTSC 4.43 4.433618 / 60 Hz
3) PAL-B,D,G,H,I 4.433618 / 50 Hz
4) PAL M 3.575611 / 60 Hz
5) PAL N 3.582056 / 50 Hz
6) PAL 60 4.433618 / 60Hz
7) SECAM 4.286 / 50 Hz
2. Power Ad pter - DC [email protected]
3. Input Volt ge AC 100(-10%) – 240(+6%)V, 50/ 60Hz
4. M rket World wide
5. Picture size 4:3
6. Aspect r tio 4:3
7. Oper ting Temper ture 0 40 deg
8. Oper ting Humidity 75 %
9. Stor ge Temper ture -20 60 deg
10. Stor ge Humidity 85 %

Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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1. Application Object
This instruction is for the application to the DLP Projector
(Chassis: FM91A).
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 set must be on for 5 minutes prior to any adjustment.
After receiving possible 100% White Pattern, it is ready for
adjustment.
3. Composition of Adjustment Mode
(1) Pressing the adjust key on the service remote conrol will
open or close the service menu.
(2) Press the ADJ key to exit the service menu.
(3) Preparation for Adjustment
1) Power is connected in set to be power on.
2) Do heat run 5minutes.
4. Folding Mirror Adjustment
4-1. Illuminator Adjustment Sequence
After putting the optical engine on the jig, check whether the
mirror part is fixated vertically. At this time the screen size
should be based on 40”. With the screen in full white
condition, look at the change in screen and brightness of the
illuminator to make appropriate adjustments.
(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.
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.
ADJUSTMENT INSTRUCTION
B
Right/Left Adjustment
Up/Down Adjustment
A
<Fig. 4 1> Check location of the bottom side of the folding mirror
Step 1 Step 2 Step 3
<Fig. 2> Illuminator Up / Down Adjustment Sequence
Step 1 Step 2 Step 3
<Fig. 3> Illuminator Left/Right Adjustment Sequence 1
Step 1 Step 2 Step 3
<Fig. 4 2> Illuminator Left/Right Adjustment Sequence 2

Copyright © 2009 LG Electronics. Inc. All right reserved.
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(4) Final Adjustment
Repeat the adjustment of (1), (2) and (3) 2 times to find the
optimal location and check whether there are any parts
where the illuminator misses with the naked eye. Find the
lighting location where the brightness of the illuminator is
the brightest to measure the brightness (CL 200), and
inspect for any alien particles and focus line width (refer to
below picture). Then fixate the adjustment screw of the
illuminator.
* Focus inspection method and item
1) Test pattern : Green cross hatch
2) Set the best focus based on the center of the screen.
3) The focus line width must satisfy the below criteria by
zone. (There must be no dual line)
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.
4-2. Illuminator Phenomenon Adjustment
Illuminator goes down direction Illuminator goes down area
Zone 1 Zone 2 Zone 3 Zone 4
Line width[mm] 2.0 mm 2.3 mm 2.8 mm 2.8 mm
Focus Examination domain

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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.
6. EDID Data Download
(1) Enter to Adjustment mode by pressing “ADJ” key on
Adjustment Remote control.(Without RGB/HDMI jack)
(2) Press right key at “4. EDID DOWNLOAD”. And then EDID
Download is operated.(Fig.6 1)
(3) Check the EDID Download of RGB/ HDMI by pressing
“INSTART” key.(Fig.6 2) If failed, perform (1) ~ (2) again
(0 : Success, X : Failure)
7. ADC Adjustment
(1) Enter to Adjustment mode by pressing “ADJ” key on
Adjustment Remote control.
(2) Press right key at “0. ADC CALIBRATION”. And then ADC
adjustment is operated.(Fig.7 1)
(3) Check the status of RGB/YPbPr by pressing “INSTART”
key.(Fig.7 2) If failed, perform (1) ~ (2) again
(0 : Success, X : Failure)
8. White Balance Adjustment
8-1. Required Test Equipment
(1) Illuminometer (Model : CL 200) 1EA : Chromaticity
measurement from projection screen center
(2) Remote control 1EA
(3) CL200 and SET connection Interface Board 1EA
(4) CL200 Uart Communication Cable 1EA
8-2. Equipment Composition
<Fig. 6 1> <Fig. 6 2>
<Fig. 7 1> <Fig. 7 2>
CL 200
SCREEN
Projector
Set fixing device
RS232C
Interface board
<Fig. 8 1> Device Setting Diagram

8
8-3. Adjustment
(1) Verify the white chromaticity diagram of normal state
before adjustment of White Balance.
Verify whether white chromaticity diagram satisfied the
product standard in 9. SEQUENCE CONTROL in ‘In
Start’ mode. Change the SEQUENCE INDEX (0~4) if
deviates from product standard.
(2) Connect as in the equipment composition diagram then
enter into adjustment mode by selecting “ADJ” on the
remote control..
(3) Execute adjustment by pressing the right direction key on
“6. AUTO CCA “ (Fig.8 3)
(However, carry out a heat run on the set for 5 minutes
before adjustment)
(4) Message as shown below can be verified after completion
of adjustment, and readjust following the (1)(2) step if
“Fail” occurs.
“OK” : White Balance Process Successful and Warm, Cool
chromaticity diagram is within the target.
“Fail” : White Balance Process Failure > Execute
readjustment.
“Warm Fail” : White Balance Process Successful and
Warm chromaticity diagram deviated more
than 0.005 from the target.
“Cool Fail” : White Balance Process Successful and Cool
chromaticity diagram deviated more than
0.005 from the target.
“Warm and Cool Fail” : White Balance Process Successful,
and both Warm can Cool
chromaticity diagrams deviated
more than 0.005 from the target.
(5) For verification of White Balance adjustment results, press
Instart Key and enter Manual CCA. (Fig.8 3 2)
Fig.8 3 1Selection Category on INSTART Menu
Fig.8 3 2 Menu after entering Manual CCA
(6) Change the Mode of Color Temp to COOL, Warm and
switch the Mode of CL200 to Temp to check whether the
each Mode has been adjusted to comply with the
specification.
Warm Mode : x=0.313±0.004, y=0.326±0.004
Cool Mode : x=0.283±0.004, y=0.297±0.004
* LED Current Initialization Method.
Adjust the Green LED value of Normal from 7. LED DC
Control of ADJ mode to a default value 186
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Sequence Index Red duty Green Duty Blue Duty
0 31% 50% 19%
1 25% 50% 25%
2 27% 50% 23%
3 29% 50% 21%
4 33% 50% 17%
Color Coordinate Min Typ Max
x 0.260 0.290 0.320 x=0.290±0.03
y 0.300 0.330 0.360 y=0.330±0.03
<Fig.8 3 1> <Fig.8 3 2>

9
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
9. Brightness Inspection
(1) Measure with PT Mode
(2) Select “ADJ” on the remote control and enter adjustment
mode number 9, “ DDP Optic Check”.
(3) Brightness Specification : Min > More than 140 ANSI lm
(Typ > 170 ANSI lm)
10. FM Wireless Audio Inspection
10-1. Used Device
(1) 1 FM Radio
(2) 1 Remote Control
(3) 1 DVD Player or a Set top Box (Equipment capable of
audio output)
(4) 1 RCA to Stereo cable
10-2. Equipment Composition
10-3. Adjustment Method
(1) Organize as shown on Fig.8.1 and configure as shown
below.
FM Radio : Set frequency to 90Mhz.
Projector : Enter :MENU” >AUDIO”, and select FM
Wireless Audio “ON” with the remote control.
DVD Player or Set top box : Play the source capable of
audio output.
(2) Verify the audio output of FM Radio by repeating
“ON” >”OFF” >”ON” of the FM Wireless Audio
“ON” >OFF” >”ON”
FM Wireless Audio “ON” : Audio is output to FM Radio
instead for Set Speaker when operating properly.
FM Wireless Audio “OFF” : Audio is not output to FM
Radio but output to Set Speaker when not operating
properly.

10
FIXING OF MAIN CASSIS
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Only for training and service purposes
LGE Internal Use Only
1. Connect 70pin FFC to P504 on Main board. 4. Connect LED/Fan cable to P901, P902, P903,
P701 on Main board.
2. Connect Speaker cable to P2 on Jack board. 5. Assemble two screw to Main board.
3. Connect Main board_70p FFC to DMD
board_P201.
6. Connect 20p FFC to P102 on Main board.

Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
11 LGE Internal Use Only
BLOCK DIAGRAM
1. MAIN

Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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VoltageVoltage LDO:1 CurrentCurrent DC/DC:2
DC/DC Eff. :
0.85
Vin(V)/Iin Vin/Iin Devcie Vout/Io ut Vn/Iin Devcie Vout/Iout
19.19. 519.19. 5 V APW7080 5V5V 5.0 V LM2733 14.14. 5 V 14.14. 5 V KIA7812 1212 V
4.4.10.0.314791479 A21.1.0404 A1.1.02 A 20.0.3 A 0.0.1 A 10.0.1 A
STEP UP
14.14. 5 V TCA0372 1212 V
Power 0.0. 2 A 10.0. 2 A
PinPin (W)(W) 21.4261
80.80. 2525
19.19. 5 V MP2305 1.1. 2 V 5.5.0 V
0.0.094129412 A21.1.3030 A0.0.02 A
19.19. 5 V MP2305 1.1. 2626 V
0.0.083628362 A21.1.1010 A
19.19. 5 V MP2355 3.3.3 V 3.3.3 V AZ1117H 1.8 1.1.8 V
0.0.6161 A23.3. 0 A 0.0.8 A 10.0.8 A
3.3.3 V KIA78R25F 2.2.5 V 2.2.5 V AZ1117H 1.2 1.1.2 V
0.0.5A1 0.0.52525 A 0.0. 4 A 10.0.12125 A 3.3.3 VAZ1117H 1.8 1.1.8 V
0.0.2 A 10.0.22 A
3.3. 3 V
1.1. 5 A
19.19. 5 V MAX16821 5V5V
3.3.016591659 A21010.0000 A
Power
58.8235
DAD200AD2000
F AN
12V @0.2A
APA20APA2068 (AUDIO AMP) 5V @0.02A
L EDED 5V @8.1A
2. POWER

- 13 -
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EXPLODED VIEW
40
400
600 21
20
620
22
410
630
100
10
11
300
610
420
800
120