Toshiba 46WM48P User manual

SERVICE MANUAL
Projection Television
46WM48P
FILE NO. 030-200419
REVISED.1
Published in Japan, Dec. 2004 (YC)
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TABLE OF CONTENTS
CHAPTER 1 GENERAL ADJUSTMENTS
SAFETY INSTRUCTIONS .............................................................................................................................................. 3
SERVICE MODE ............................................................................................................................................................
.............................................................................................................................................................
.........................................................................................................................................
.......................................................................................
...............................................................................................................................................
4
DESIGN MODE 7
CHAPTER 2 SPECIFIC INFORMATIONS
SETTING & ADJUSTING DATA ...................................................................................................................................... 9
LOCATION OF CONTROLS
Tuning the television using Quick setup, Programme sorting 12
LAMP UNIT REPLACEMENT ....................................................................................................................................... 13
PARTS REPLACEMENT IN LIGHT ENGINE...............................................................................................................
15
LIGHT ENGINE REPLACEMANT.................................................................................................................................
17
EXPLODED VIEW ........................................................................................................................................................ 19
MECHANICAL DISASSEMBLY .................................................................................................................................... 20
CHASSIS REPLACEMENT PARTS LIST ..................................................................................................................... 21
PC BOARDS TOP AND BOTTOM VIEW ..................................................................................................................... 30
10
SCHEMATIC DIAGRAM 42
CIRCUIT BLOCK DIAGRAM ........................................................................................................................................ 44
SPECIFICATIONS .................................................................................................................................................... END
APPENDIX:
CIRCUIT DIAGRAM
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Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are
often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained by using
replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety charac-
teristics are identified in this manual and its supplements; electrical components having such features are identified by the
international hazard symbols on the schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement
parts which do not have the same safety character istics as specified in the parts list may create shock, fire, or other hazards.
PRODUCT SAFETY NOTICE
CHAPTER 1 GENERAL ADJUSTMENTS
SAFETY INSTRUCTIONS
WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions on this receiver.The following
are the necessary precautions to be observed before servicing this chassis.
1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is
performed on the receiver.
2. When the replacing a chassis in the cabinet, always be certain that all the prospective devices are put back in place, such
as; non-metallic control knobs,insulating covers, shields, isolation resistor-capacitor network etc.
SAFETY PRECAUTION
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SERVICE MODE
1. ENTERING TO SERVICE MODE
S
(Service mode display)
Item
Data
or Sound Mute
3) While pressing the button,
press MENU button on TV set.
2) Press button again to
keep pressing.
2. DISPLAYING THE ADJUSTMENT MENU
1) Press MENU button on TV.
3. KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
Test signal selection : button (on Remote)
Selection of the adjustment items : Channel / (on TV or Remote)
Change of the data value : Volume +/– (on TV or Remote)
Adjustment menu mode ON/OFF : MENU button (on TV)
Initialization of the memory (QA02) : CALL + Channel button on TV ( )
Reset the count of operating protect
circuit to “00”: CALL + Channel button on TV ( )
“RCUT” selection : button
“GCUT” selection : button
“BCUT” selection : button
Self diagnostic display ON/OFF : button
1) Press button once on
Remote Control.
Adjustment mode
Press
Press
Service mode
Item
Data
S
CAUTION : Never try to perform initialization unless you have changed the memory IC.
2
3
1
9
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4. SELECTING THE ADJUSTING ITEMS
1)Every pressing of CHANNEL button in the service mode changes the adjustment items in the order of table-2.
( button for reverse order)
Refer to table-2 for preset data of adjustment mode.
(See SETTING & ADJUSTING DATA on page 27)
5. ADJUSTING THE DATA
1) Pressing of VOLUME +/– button will change the value of data in the range from 00H to FFH. The variable range
depends on the adjusting item.
6. EXIT FROM SERVICE MODE
1) Pressing POWER button to turn off the TV once.
INITIALIZATION OF MEMORY DATA OF QA02
After replacing QA02, the following initialization is required.
1. Enter the service mode, then select any register item.
2. Press and hold the CALL button on the Remote, then press the CHANNEL button on the TV. The initialization of QA02 has
been complated.
3. Check the picture carefully. If necessary, adjust any adjustment item above.
Perform “Auto tune” on the owner’s manual.
CAUTION: Never attempt to initialize the data unless QA02 has been replaced.
7. TEST SIGNAL SELECTION
1) Every pressing of button on the Remote Control changes the built-in test patterns on screen as described below
in SERVICE MODE.
Signals Picture
• All White
• All Red
• All Green
• All Blue
• All Black
Signal off
ALL Red ALL Green ALL Blue ALL Black ALL White
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8. SELF DIAGNOSTIC FUNCTION
1) Press “9” button on Remote Control during display of adjustment menu in the service mode.
The diagnosis will begin to check if interface among IC’s are executed properly.
2) During diagnosis, the following displays are shown.
Firmware:
V
Temperature indication
+10 indicates temperature nearby the lamp unit
+99 indicates temperature nearby the light engine
ersion information of microprocessor
In case of file name : WM48 and Version : 1.00 indicates[WM48_100].
Time: Total Total hour of Lamp lights. (Unit : H)hour of turn the TV on. (Unit : H)
Power : Operation number of protecting circuit ----"00" is normal.
When indication is other than "00", overcurrent apt to flow, and circuit parts may
possibly be damaged.
BusCont : --- "OK" is normal.
When type name of semiconductor indicates.
1
2
3
4
5
1
2
3
4
5
6
7
6
1)
2)
BLOCK
3)
UV : TV reception mode
4)
V1 : VIDEO 1 input mode (
5)
V2 : VIDEO 2 input mode (
V3 : VIDEO 3 input mode (
V4 : VIDEO 4 input mode (
V5 : VIDEO 5 input mode (
HDMI)V6 : HDMI input mode (
PC)PC: PC input mode (
7Model name (7 digit)
46WM48P
DLP +10
V6
: +99
WM48_000
000006 (Lamp:000006)
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DESIGN MODE
1. ENTERING TO DESIGN MODE
S D Press
(Design mode)
Press
2) While pressing CALL button on Remote
and press MENU button on TV.
1) Select the Service mode.
2. SELECTING THE ADJUSTING ITEMS
Every pressing of CHANNEL button in the design mode changes the adjustment items in the order of table-3.
( button for reverse order)
3. ADJUSTING THE DATA
Pressing of VOLUME or button will change the value of data.
Version information of
microprocessor
Main tuner information
Selectable picture information
Position information
Signal information
Screen size information
Sound system information
3) The following displays
are shown on the screen
1
2
3
4
5
6
7
WM48_000
1
34567
2
WM48_000
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RED indicator
GREEN indicator
Control touchpad on TV front
MENUEXIT
4. LED indications
The green and red LED lights on the TV control
touchpad (on the lower right Corner of the TV screen)
indicate the TV's current status, as follows:
·Red ON (solid) and Green OFF = TV power cord is
plugged in (the TV is ON or OFF).
·Green ON (solid) and Red OFF = The On timer is
operating.
·Green and Red ON (solid) = TV front touchpad is
being pressed.
·Green flashing (see table below for condition).
On timer set
2
3
7
8
1
6
5
4
Lowest ON
Abnormal operation (FAN stopped) 500ms ON, 500ms OFF
BUS line has failed. (IIC BUS error) 1sec ON, 1sec OFF
Lamp LPS (Low Power Standby) mode
(200ms ON · 200ms OFF)x1 Time, 1sec OFF
The lamp lights again. (200ms ON · 200ms OFF)x2 Times, 1sec OFF
The lamp unit door is not closed properly. (200ms ON · 200ms OFF)x3 Times, 1sec OFF
The lamp is not lightning properly. (200ms ON · 200ms OFF)x4 Times, 1sec OFF
The color wheel has stopped, DMD bus error (200ms ON · 200ms OFF)x5 Times, 1sec OFF
Temperature increases abnormally. (200ms ON · 200ms OFF)x6 Times, 1sec OFF
ProblemPriority Green LED Operation
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SETTING & ADJUSTING DATA
CHAPTER 2 SPECIFIC INFORMATIONS
SERVICE MODE
ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:
Item Name of adjustment Preset Deta
46WM48P
Table-1
RCUT R CUT OFF
GCUT G CUTOFF
BCUT B CUT OFF
RDRV R DRIVE
GDRV G DRIVE
BDRV B DRIVE
HPOS
H.POSITION (PAL/WIDE)
VPOS V.POSITION (PAL/WIDE)
CWDH COLOR WHEEL DELAY (HIGH)
CWDL COLOR WHEEL DELAY (LOW)
DMDB DMD BIAS
OPT0 TV SET OPTION 0
OPT1 TV SET OPTION 1
HOTE1
HOTEL MODE OPTION 1
HOTE2 HOTEL MODE OPTION 2
UOLX
Note:
The image system data of RCUT-BDRV is different by each image format.
The PAL value is indicated in the table.
Never adjust H.POS and V.POS except PAL/WIDE mode.
60H
60H
60H
55H
48H
4BH
00H
00H
00H
FAH
03H
8CH
00H
00H
00H
75H
OPT1 should be set to "20H" for UK shipment model.
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LOCATION OF CONTROLS
Back
Front
IN
OUT
IN
OUT
HDMI
video recorder
decoder
COMPONENT VIDEO INPUT (EXT4)
HDMI™
Connecting a computer
INPUT
SAT
IN/OUT
VCRTV
SCART1
(EXT1)
SCART2
(EXT2)
SCART3
(EXT3)
MENUEXIT
Standby
RED LED–Power On
GREEN LED
INPUT 5
(EXT5)
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Remote Control
Simple at-a-glance reference of your remote control.
To mute the sound
Teletext control buttons
To exit Menus
Bass Boost/Super Woofer
Stereo/Bilingual reception
To bring up on-screen information and
for the teletext initial/index function
To select input from external sources
To access sub-pages when in teletext
mode
To select mode
On-screen Menus
Selectable picture preferences Widescreen viewing
Number buttons
To return to the previous programme
For On/Standby mode
To display teletext
When using a TOSHIBA VCR or DVD:
press
mto PAUSE
presswto EJECT
press
l
q
to SKIP-REWIND
press
s
l
to SKIP-FORWARD
press
r
to PLAY
press
p
to STOP
press
q
to REWIND
press
s
to FAST FORWARD
To change programme positions and
teletext pages
To alter the volume
When using menus the arrows move the
cursor on the screen up, down, left or
right. OK to confirm your selection
When in TV mode:
8
/
9Time display
When in Teletext mode:
r
To reveal concealed text
q
To hold a wanted page
s
To enlarge teletext display size
8
/
9To select a page whilst viewing a
normal picture
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Tuning the television using Quick setup,
Programme sorting
Before switching on the television put your decoder and video recorder (VCR) to Standby if they are
connected. To set up the television use the buttons on the remote control as detailed on page 5.
1
2
3
5
6
7
8
9
4
Press Qto highlight Language.
Connect the television to the mains power. The
Quick setup screen will appear.
Using Sor Rselect your Language, then press
OK.
Then press Sor Rto select your Country and
press OK.
Your System will have been selected, if there is a
choice, press Rto select from the systems
displayed.
To start Auto tuning press OK.
The search will begin for all available stations.
The slide bar will move along the line as the
search progresses.
You must allow the television to complete
the search.
When the search is complete the television will
automatically select programme position 1. This
may not be a clear picture or the signal may be
weak, so the station order can be changed using
Programme sorting which will appear on the
screen.
Quick setup
Select your language.
Language English
EXIT Watch TV Next
Auto tuning
Searching
Channel : 6 Station :
EXIT Stop
B/G – Continental Europe, I – UK
D/K – Eastern Europe, L1,L2 – France
Programme sorting
Prog. Channel Station
1 22 BBC1
228 BBC2
325 ITV
432 CH4
569
669
Sort Store
MENU Back EXIT Watch TV
Use Qor Pto move through the list to your
preferred position. As you do so the other stations
will move to make room.
Press Sto store your move.
Repeat as necessary, then press EXIT.
If the television cannot be connected to a
VCR/decoder with a SCART lead or if a station on
another system is required, use Manual tuning
to allocate a programme position.
With the list of stations now showing use Qor P
to highlight the station you want to move and
press R.
The selected station will be moved to the right of
the screen.
11
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LAMP UNIT REPLACEMENT
WARNING
LAMP UNIT REPLACEMENT
THE VOLTAGE INSIDE THIS
PRODUCT MAY BE STRONG
ENOUGH TO CAUSE AN
ELECTRIC SHOCK
To reduce the risk of injury from electric shock never open or remove
any of the television covers other than the Lamp Unit door. All other
servicing should be carried out by qualified service personnel.
DO NOT TRY TO SERVICE THIS PRODUCT YOURSELF.
The lamp has a limited service life which depends on the the amount of use and the settings used, so
it has been designed for safe replacement by the consumer. The brightness of the lamp will vary
during use and over time will gradually decrease. The strength of the quartz glass in the lamp will
also reduce, this may cause the lamp to rupture, creating a loud noise and stopping the operation of
the television. The lamp unit is designed so that the broken glass remains inside the replaceable unit.
The lamp has reached the end of its service life when a reduction in colour and/or brightness is
noticed or if the lamp ruptures.
CAUTION: Always handle the lamp unit with care, keep away from children and pets. The
unit has been designed so that the consumer can replace it but any misuse could result in
the unit breaking exposing sharp edges and pinch points.
IMPORTANT SAFETY INSTRUCTIONS…
NEVER look directly at the lamp when lit as eye
damage could result.
ALWAYS turn off the television by unplugging the
mains lead before opening the lamp unit door.
When replacing the lamp unit ALWAYS wear gloves to
reduce the risk of burns.
The lamp unit door is provided with an interlock to
reduce the risk of electric shock and excessive
ultraviolet radiation. DO NOT attempt to replace the
lamp unit without removing the lamp unit door
completely, failure to do so could result in serious injury
or death.
If the lamp unit glass is accidently touched or gets dirt
on it, it can be gently wiped clean with a lint-free
cleaning cloth such as a camera lens cloth or
spectacles cloth.
NEVER clean the lamp with any type of flammable or
aerosol cleaning liquid. Most household cleaning
agents contain chemicals that are flammable at high
temperatures.
To obtain a replacement lamp please contact your local
Toshiba authorized dealer.
DISPOSAL…
The lamp in this television contains mercury, when the
lamp unit and the television reaches the end of its
useful life please dispose of it in accordance with Local
Government Regulations or at a recycling centre.
The temperature of the
lamp immediately after use
exceeds 392°F/200°C. Allow
the lamp to cool for at least
1 hour before replacing it,
touching it before it has
cooled will result in severe
burns.
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Turn off the television and remove the mains plug
from the wall socket.
Allow the lamp to cool for at least 1 hour
before replacing it.
Remember to wear gloves when replacing the
lamp unit.
Undo the lamp unit door by loosening the thumb
screw, then remove it by pulling the door outwards.
Using a manual Phillips hand screwdriver of
suitable size, loosen the two screws on the bottom
left and right of the lamp unit.
Using the lamp unit handle, gently pull the unit
out of the television and put to one side.
1
2
3
4
Replacing the Lamp unit
Carefully insert the new lamp unit into the
television until it is fully seated.
NOTE:
Make sure that the lamp unit it not subjected to
any knocks or bumps.
Never touch the lamp unit glass or allow it to get
dirty. This may affect the picture quality and
shorten the service life of the lamp.
Using the Phillips screwdriver tighten the two
screws. Make sure that the screws are hand-tight
only, do not use an electric screwdriver to avoid
over-tightening.
Replace the lamp unit door by inserting the hooks
on the left side of the door into the openings in
the televisions cabinet.
5
6
7
Replace the thumb screw and hand-tighten.
Plug in the mains lead and take the television out
of standby, the television may take a moment to
come up to full brightness. The television should
now operate normally.
If there is no picture, the picture is very dark or the
television does not turn on, turn it back off and
remove the plug from the mains power. Repeat
steps 1 to 7 to ensure that the lamp unit has been
installed correctly.
If the television still does not operate, make sure
the television is unplugged and contact your
Toshiba dealer.
Put the old lamp into the now empty lamp unit
box and dispose of it according to local
Government guidelines. Make sure it is out of
reach of children and animals.
8
9
Thumb Screw
Lamp Unit handle
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LIGHT ENGINE REPLACEMENT
Cautions when replacing LIGHT ENGINE
LIGHT ENGINE is a heart of TV which emits high heat.
Make sure to replace it after turning off the TV and wait
for sufficient cool down. (More than one hour is recom-
mended.)
Do not add any impact during replacement; otherwise,
some parts may be damaged.
Do not touch any optical lens. Adhesion of dirt may
deteriorate its performance.
Do not loosen any screw other than those to be removed
for adjustment or replacement.
LIGHT ENGINE emits ultraviolet rays when the TV is
ON. Make sure to be careful.
Read DMD bias value described in alphabet from the
data bar code. In service mode, DMDB value is con-
verted and fixed by the following table.
Refer to Service Mode for adjusting the service mode.
DMDB
B00
C01
D02
E03
F04
DMD value in bar
code
Adjusted value
(Hex)
1-2. Adjustment is made by service mode. The adjusting
items consist of CWDL, CWDH and DMDB.
When CW delay number of the data bar code is 0450:
Double 45.0 to form hexadecimal number (HEX).
The adjusted value becomes “5A” for CWDL and “00”
for CWDH.
If hexadecimal number forms 3 or 4 digits, the latter 2
digits indicate CWDL while the first 2 digits indicate
CWDH.
(For 3 digits, CWDH=0*)
Note:
For converting decimal number to hexadecimal num-
ber, see the conversion table on the next page.
CWDL CWDH
0450 indicates 450 45.0
45.0 x 2=90 5A (hexadecimal)
Serial bar code
Data bar code
1. Replacement of Light Engine Unit
1-1. When Light Engine Unit is replaced with a new one, the
adjustment is required. Adjusted values are described
in bar code, and the values of bar code must be con-
verted to the adjusted values for the setup.
There are 2 types of bar code.
Serial bar code
Ex. 52A000A111111
Data bar code (CW: color wheel)
Ex. A111111B1111
CWdelay number: 4digits
Inch size
Substrate serial numbers
Serial numbers
DMD bias value
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CW delay CWDH CWDL
number
0000 00 00
0005 00 01
0010 00 02
0015 00 03
0020 00 04
0025 00 05
0030 00 06
0035 00 07
0040 00 08
0045 00 09
0050 00 0A
0055 00 0B
0060 00 0C
0065 00 0D
0070 00 0E
0075 00 0F
0080 00 10
0085 00 11
0090 00 12
0095 00 13
0100 00 14
0105 00 15
0110 00 16
0115 00 17
0120 00 18
0125 00 19
0130 00 1A
0135 00 1B
0140 00 1C
0145 00 1D
0150 00 1E
0155 00 1F
0160 00 20
0165 00 21
0170 00 22
0175 00 23
0180 00 24
0185 00 25
0190 00 26
0195 00 27
0200 00 28
0205 00 29
0210 00 2A
0215 00 2B
0220 00 2C
0225 00 2D
0230 00 2E
0235 00 2F
0240 00 30
0245 00 31
0250 00 32
0255 00 33
0260 00 34
0265 00 35
0270 00 36
0275 00 37
0280 00 38
0285 00 39
0290 00 3A
0295 00 3B
0300 00 3C
0305 00 3D
0310 00 3E
0315 00 3F
0320 00 40
0325 00 41
0330 00 42
0335 00 43
0340 00 44
0345 00 45
0350 00 46
0355 00 47
0360 00 48
0365 00 49
CW delay CWDH CWDL
number
0370 00 4A
0375 00 4B
0380 00 4C
0385 00 4D
0390 00 4E
0395 00 4F
0400 00 50
0405 00 51
0410 00 52
0415 00 53
0420 00 54
0425 00 55
0430 00 56
0435 00 57
0440 00 58
0445 00 59
0450 00 5A
0455 00 5B
0460 00 5C
0465 00 5D
0470 00 5E
0475 00 5F
0480 00 60
0485 00 61
0490 00 62
0495 00 63
0500 00 64
0505 00 65
0510 00 66
0515 00 67
0520 00 68
0525 00 69
0530 00 6A
0535 00 6B
0540 00 6C
0545 00 6D
0550 00 6E
0555 00 6F
0560 00 70
0565 00 71
0570 00 72
0575 00 73
0580 00 74
0585 00 75
0590 00 76
0595 00 77
0600 00 78
0605 00 79
0610 00 7A
0615 00 7B
0620 00 7C
0625 00 7D
0630 00 7E
0635 00 7F
0640 00 80
0645 00 81
0650 00 82
0655 00 83
0660 00 84
0665 00 85
0670 00 86
0675 00 87
0680 00 88
0685 00 89
0690 00 8A
0695 00 8B
0700 00 8C
0705 00 8D
0710 00 8E
0715 00 8F
0720 00 90
0725 00 91
0730 00 92
0735 00 93
CW delay CWDH CWDL
number
0740 00 94
0745 00 95
0750 00 96
0755 00 97
0760 00 98
0765 00 99
0770 00 9A
0775 00 9B
0780 00 9C
0785 00 9D
0790 00 9E
0795 00 9F
0800 00 A0
0805 00 A1
0810 00 A2
0815 00 A3
0820 00 A4
0825 00 A5
0830 00 A6
0835 00 A7
0840 00 A8
0845 00 A9
0850 00 AA
0855 00 AB
0860 00 AC
0865 00 AD
0870 00 AE
0875 00 AF
0880 00 B0
0885 00 B1
0890 00 B2
0895 00 B3
0900 00 B4
0905 00 B5
0910 00 B6
0915 00 B7
0920 00 B8
0925 00 B9
0930 00 BA
0935 00 BB
0940 00 BC
0945 00 BD
0950 00 BE
0955 00 BF
0960 00 C0
0965 00 C1
0970 00 C2
0975 00 C3
0980 00 C4
0985 00 C5
0990 00 C6
0995 00 C7
1000 00 C8
1005 00 C9
1010 00 CA
1015 00 CB
1020 00 CC
1025 00 CD
1030 00 CE
1035 00 CF
1040 00 D0
1045 00 D1
1050 00 D2
1055 00 D3
1060 00 D4
1065 00 D5
1070 00 D6
1075 00 D7
1080 00 D8
1085 00 D9
1090 00 DA
1095 00 DB
1100 00 DC
1105 00 DD
CW delay CWDH CWDL
number
1110 00 DE
1115 00 DF
1120 00 E0
1125 00 E1
1130 00 E2
1135 00 E3
1140 00 E4
1145 00 E5
1150 00 E6
1155 00 E7
1160 00 E8
1165 00 E9
1170 00 EA
1175 00 EB
1180 00 EC
1185 00 ED
1190 00 EE
1195 00 EF
1200 00 F0
1205 00 F1
1210 00 F2
1215 00 F3
1220 00 F4
1225 00 F5
1230 00 F6
1235 00 F7
1240 00 F8
1245 00 F9
1250 00 FA
1255 00 FB
1260 00 FC
1265 00 FD
1270 00 FE
1275 00 FF
1280 01 00
1285 01 01
1290 01 02
1295 01 03
1300 01 04
1305 01 05
1310 01 06
1315 01 07
1320 01 08
1325 01 09
1330 01 0A
1335 01 0B
1340 01 0C
1345 01 0D
1350 01 0E
1355 01 0F
1360 01 10
1365 01 11
1370 01 12
1375 01 13
1380 01 14
1385 01 15
1390 01 16
1395 01 17
1400 01 18
1405 01 19
1410 01 1A
1415 01 1B
1420 01 1C
1425 01 1D
1430 01 1E
1435 01 1F
1440 01 20
1445 01 21
1450 01 22
1455 01 23
1460 01 24
1465 01 25
1470 01 26
1475 01 27
CW delay CWDH CWDL
number
1480 01 28
1485 01 29
1490 01 2A
1495 01 2B
1500 01 2C
1505 01 2D
1510 01 2E
1515 01 2F
1520 01 30
1525 01 31
1530 01 32
1535 01 33
1540 01 34
1545 01 35
1550 01 36
1555 01 37
1560 01 38
1565 01 39
1570 01 3A
1575 01 3B
1580 01 3C
1585 01 3D
1590 01 3E
1595 01 3F
1600 01 40
1605 01 41
1610 01 42
1615 01 43
1620 01 44
1625 01 45
1630 01 46
1635 01 47
1640 01 48
1645 01 49
1650 01 4A
1655 01 4B
1660 01 4C
1665 01 4D
1670 01 4E
1675 01 4F
1680 01 50
1685 01 51
1690 01 52
1695 01 53
1700 01 54
1705 01 55
1710 01 56
1715 01 57
1720 01 58
1725 01 59
1730 01 5A
1735 01 5B
1740 01 5C
1745 01 5D
1750 01 5E
1755 01 5F
1760 01 60
1765 01 61
1770 01 62
1775 01 63
1780 01 64
1785 01 65
1790 01 66
1795 01 67
Conversion Table for Decimal and Hexadecimal Numbers
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- 17 -
4 Replacement of Sensor Unit (Photo Detector
Substrate) & Motor Unit (Motor Substrate)
4-1. Remove 2 screws fixing a color wheel cover and UV
filter box.
1 FAN Replacement
1-1. For replacing FAN for cooling heatsink, remove 2
screws.
For replacing FAN for cooling lamp, detach FAN hood
located on LIGHT ENGINE by removing 2 screws and
then remove 4 screws.
2. Replacement of Ballast Power Unit
2-1. Remove lamp unit by loosening 2 screws.
(Refer to pages 13 to 14)
2-2. Remove 2 screws holding chassis of ballast power unit
to detach the chassis.
Note:
Treat with enough care so as not to damage the
cable for lamp power.
FAN for cooling lamp
FAN for cooling heatsink
Ballast power unit
2-3. Detach the ballast power unit by removing 4 substrate
stoppers that hold the ballast power unit.
CAUTION
Precautions When Exchanging Ballast Power Units
When you install a new ballast power unit, install it
while pushing the four corners of the board directly.
Installation while pressing the heatsink may cause
the pattern crack.
3. Replacement ofTemperature Breaker
3-1. Remove 2 screws for replacing the temperature breaker
for lamp.
PARTS REPLACEMENT IN LIGHT ENGINE
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- 18 -
4-2. Remove one screw for motor unit.
4-3. Remove 2 screws holding Photo Detector substrate.
Caution
When removing screws, do not damage the
color wheel with drivers, etc. Even a small im-
pact may damage the color wheel.
Make sure not to touch the color wheel.
Don’t remove other screws by any means.
Color wheel
Photo Detector substrate
Motor substrate
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- 19 -
EXPLODED VIEW
12 screws
13 screws
3
screws
2 screws
2 screws
M4 ✕16
4 screws
M4 ✕16
3 screws
M4 ✕16
3 screws
4 screws
2 screws
1 screw
2 screw
4 screws
4 screws
A101
A204
W662
W661
K601
K501
K502
A201
A204
UA03
A025
A026
A215
A271
A401
UV03
UA06
A227
A225
A222
A333
A278
A101
UA02
UD02
OPSS SCALER BOARD
U802
MAIN POWER BOARD
U101
IF AUDIO BOARD
UV01
BACK AV BOARD
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- 20 -
MECHANICAL DISASSEMBLY
12 screws
13 screws
2 screws
2 screws
3 screws
A101
A201
A401
K601 W661
W662
A215
A271
2 Touchpad & Bezel Ass'y Removal
3 Mirror Removal
1 Rear Cover Removal
4 Speaker Removal
5 Bracket Removal 6 Optical Engine Removal
A101
A204
A205
UA03
A025
A026
4 screws
10 screws
2 screws
1 screw
4 screws
4 screws
UV03
UA06
A227
A222
A333
2 screw
UA02
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