Akai DVLX44C1 User manual

AKAI
Rear Pr oj ection TV
Service Manual
Prepared by
Digital Video Lab s, Inc.
6185 Paseo del Norte, Suite 200
Carlsbad, CA 92009
10 December 2004
Revision Summary
Sec tion
Cha nge S ynop si s
Re vision 0.0 -- 32 October 2004
I In itial release
Revision
0.1 -- )(]( VVY 2004
I
Revision 0.2 -- xx .vvv 2004 .
service ITIIInu al i
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Table 01 Co ntents
Scope ..
1.1 Important Safety Instructions ..
2 DVLX4xCx Description.
2.1 Product Designation
..
3 Product Architecture ........... ... .
3.1 Critical Subassemblies .. . ...... ..... .
3.2 Block Diagram .....
.. .......... ..
4 Product Test Environment.
5 Service Procedure.. . ............
.. .
5 1 E-
Box Disassembly & Board Replacement Procedure ..
5.2 U mp Cartridge Replacement Procedure ..
5.3 Control Board and LED Board Replacement Procedure .. .
6 DVLX4xCx Diagnostic Software Downloading
and Operation .. .
6.1 Downloading the Diagnostic Software into the DVLX4xCx unn ...
6.2 Running the Diagnostic Software
..
7 Ope,etional Software Downloading and Operation ...
7.1 Downloading the Operational Software Into the DVLX4xCx unit .
7.2 Reset Picture Settings
.. .. ..... .... .. .
7
.3 VGA Scaling and Border Alignment .. ........ ... ..
74 Video Fine Tuning adjustment..
7.5 Checking
and verifying each input on the DVLX4xCx unit..
7.6 Running the remote control test.
.. .... ....... .. ..
7.7 Running the front panel keypad test.. ... ..... .. ..
7.8 Reverting to user mode and finishing the test.
8 Load and
Run Operational Software ..
9 Run Maintenance Menu BIT ...
10 Run Calibration Procedure ..
Figure 1: DVLX4xCx Product View ..
Figure 2' DVLX4xCx Critical Subassemblies ..
Figure 14 ' Maintenance Menu.
Figure
3: DVLX4xCx Block Diagram .......... .......... .... .
Figure
4: Test Environment..
Figure
5: VGA Test Pattern ..
Figure 6: Service Procedure FlOWChart .
Figure 7: Service Procedure Flowchart (Continued) .
Figure 8: Service Procedure Flowchart (Continued)
Figure 9: Maintenance Menu .
Figure
10: Ma intenance Menu and VGA Submenu ..
Figure 11: Ma intenance Menu and Video Fine Tuning Submenu.
Figure
12: Ma intenance Menu and Input Submenu
Figure
13 : Operational On Screen Display (OSD) Menu ..
Table 1: DVLX4xCx Products ... ................. ..
Table 2: Service Checklist . ........ .... .
Table
3: Service Procedure Number (SPN) Description .
Table 4: Cable Routing Description
.. ..
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.
.... .3
.
... 3
.. .3
............. 4
.. . ... 4
....... ...... 6
.............. ........... 7
.. ...... 10
. ..... 22
.
... 25
.. 26
......
..... ..... 26
... 26
. ... 27
.27
. .. 27
.. 28
.. 28
....... 29
.. ... 30
.......30
.....
... .. . .. . .. 31
.. 31
.31
. ..............32
........ 32
........... 4
.6
.... 7
.. 8
.
.. ..... ... 9
.. .... 12
.
.... 13
......... 14
........28
.. ... . 29
..30
... .30
. ............. 32
.
.... .. . .. 32
. 4
. 10
. .. ........... .. . .... ........ ... . 15
. .......... .. 22
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RearProJection TV Servtce Man ual
1 Scope
This Service Manual provides detailed service operations for Digital Video Labs. Inc. (DVLX) Digital Light
Processi
ng'" (D LP"' ) Rear Projection Television (RPTV). designated DVLX4xCx. This Service Manual is
intended for the referen ce of qualified maintenance personnel servicing the DVLX4xCx.
1.1 Impo rtant Saf ety I nstructions
Please pay attention to the following important safety instructions before carrying out the maintenance
work.
1. If you want to conduct maintenance work when the set is in normal operation or just after the
power is turn
ed off. you must take proper measures to avoid electric shock from the circuitry or
metal parts. Within a short time after the power
is turned off, relatively high vo~age is prese nt
2. Do not apply any VOltages higher than the specification. If the power supply used deviates from
the values given
in the specification, there is a possibility of fire or damage to the TV.
3. Never operate the TV in an unsuitable environment, such as in the vicinity of water or sources of
fire. Otherwise there
is a possibility of fire or damage to the TV.
4. If a foreign substance such as a liquid, a metal slice, or other accidentally falls into the TV, turn
off the power Immediately. Otherwise there
is a possibility of fire or damage to the TV.
5. Ii there is smoke, abnormal smell, or abnormal sound from the TV, turn off the power
immediately.
6. To avoid overheating, do not block any ventilation openings. The TV must be located where there
is adequate ventilation.
7. Guard against static electriCity which can destroy integrated circuits.
8. Guard against dust during assembling or dismantling lest IT should impair the screen image.
2 DVLX4xCx
Descripti on
This Section of the specifications provides a general description of the DVLX4xCx RPTV, including the
feature set
of the product, as well as the physical characteristics of the product
2,1 Product Designation
The product designation consists of four letters preceded by DVLX. The first letter identifies the
enclosure size. For this product, the enclosure
is designed to accommodate screen sizes in the 42-46
in
ch diagonal range, and the enclosure size designation is ' 4' . The first and second letters together
identify the product screen size. The third and
fo urth letters together identify the bezel/enclosure
configurations
{C 1, C2 or C3}, since the product main enclosure is designed such that it ca n be used with
muniple front-view assemblies. The different products covered by th
is document have product
designations summarized
in Table 1 and are depicted in Figure 1.
OLVX4xCx
~
I L Configuration
L- Screen Size
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T abl e 1: DVLX4xCx Products
Desig nati on
Screen
Diaaonal Bezel/E
nclosure
C onf iQuratl on
DVLX44C1 44" C1
- j
:JVLX 44C2 44
01
C2
DV LX 44C3 44 " C3
DVLX46C1 46" C1
DVLX46
C2
46" C2
DVLX46C3 46" C3
DVLX44C2
DVLX46C2 OllLx
4olC3
OIlLX• • C3
Fi gure 1: DVLX4xCx Prod uct View
Predominatel
y, the entire DVLX4xCx product line is composed of common parts. The few parts which
apply on
ly to specific products are associated with the front bezel to give product differentiation in
appearance.
3 Produc t A fCh itecture
This section provides details of the DVLX4xCx architecture.
3.1 C ritical SubMsomb lies
Figure 2 shows the Crrtical Subassemblies of the DVLX4xCx. As shown in Figure 2, the DVLX4xCx is
composed of the following groups of cntical SUbasse mbli es :
1. Mechani
ca l Subassemblies:
a. Main Enclosure
b. Remote Control Enclosure
2. Optical Subassemblies
a. Light Projection Engine
b. Mirrors
i. Small mirror
Ii . Large mirror
c. Screen
3. Electrical Subassemblies:
a. Formatter Board
b. Video Board
c. Tuner Board
d. Audio Subsystem:
I. Audio Board
i
i. Speakers
e. Control Board
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f. 1/0 panel
g. Remote Control Board
h. Power supply
i. Lamp and housing
j. Ballast
k. Fans
i, Lamp fan
il. Enclosure fans
The detailed design specifications of each of these subassemblies are provided
in SUbsequent
subsections
of this document The most important design archrtecture aspects are:
1. The light projection architecture utilizes a two-fold configuration that allows for achieving a
minimal depth chassis design.
2. The main enclosure mechanical design concept has as few as possible mechanical components
to hetp in reducing the tooling cost and the assembly cost of the chassis.
3. The main enclosure mechanical design concept allows the main assemblies to be used with
multiple front-view assemblies to offer different aesthetic look industrial designs with different
screen sIZes.
4. In or der to allow for competitive procurement of the most costly subassembly, the main enclosure
is
des igned to allow for the use of optical engines from at least two different optical engine
supphers
5. In order to provide AKAI with the ability to address different d~tribution channels ',· .•th a different
aesthetic look and screen size designs, the main enclosure
is designed such tr ,at it allows
mounting of the optical engine platfonm
in such a way to accommodate the throw distances fo r
s
iz es ranging from a 42" diagonal screen to a 46" diagonal screen.
S The Formatter Board, which provides the video and graphics for display on the screen, features:
Low-voltage differential signal (LVDS) video input interface for reduced EMI emission.
• Cost effective Single Board Design
Wide-screen format: 1280x720 Texas Instruments HD2 DMD (High-definition)
Support for a variety of color wheel drive solutions.
RDRAM support for compact electronics design.
7. The Video Board
is designed utilizing highly integrated digital video application specific integrated
circuits (ASIC) and components
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Mecha ni c al (Encl os ure )
Electrical
Opt le.al
---- -- --- -- -- -
r-
r- ------ -- -- ---
Lamp t
Housing
D D Light Projection
Fotma nt r Engine
B oa rd
,
,
'" •
E'
,
, •
~
f ~
i
, D D Integrated
light
,
Ba llast
lamp F. "
Engm e Sub sys te m .
.. _------------ -
------ ...,, -- ----- -
•
0
~
0
<fJ
r---------------,
A ud io 0 '
: Su bs ystem I
DDD D
Vid o-o Tuner Power E n d o~t. .IF .
I Spea~ er I
Bo , Nl
Bo ard Su pp ly Fa n
:0 :
I Au di o I
, Board I
: 0:
I I I
=:J
, ,
1/0 Pa n il l Control Board Speaker ,
I
- ---- --- - --- - . ~ - ~
I:=J
R emot e
Controller
Fi gure 2: DVLX4xCx Critical Subassemblies
3.2 Bl ock Diagram
Figure 3 shows a block diagr am of the DVL X4 xCx, wflich highlights the i nt e rn al interfaces be tween the
critical subassemblies and iden
ti fies cable IDs.
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ACBL' 5
AC BLl 6
Interlock
~~Ji== ~ '--- ~
Encl osu re
Fans
E-<lox
Fan
Figure 3: DVLX4xCx Block Di agram
Screen
Large
M ir ror
I II
j"~ ~~r
Product Test Environment
The test environment includes a test controller and multiple audiolvideo sources assembled Irom mu~iple
PC s and DVD players, along WITh a barcode reader. The DVLX4xCx UnIT Under Test (UUT) is connected
to the test equipment
in the test environment as shown in Figure 4 and summarized below Specillc
DVLX4xCx inputs to which the test equipment
is connected are identified by name as printed on the
DVLX4xCx Iront panel and back panel labels.
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Test Controller & Program So urce
PC W4 S-232 .. R8- 232
• Download Software
• Run tests
• Record Te st Results
Audl oNideo Sources
~~~o~mp~o s ~~=e=V;=' d : ~ ~R~FJ Mo~ dE
OVD~S_Video
""
AN TS
RF M od
ANTA
~..:C:::o"-m",p",os,,~ ,,, . .::. =-<'l: oV id eo 1 'M ...
DVD I ~ S-Video
-=--:..:.::;'--'---- ~ .. ~ S-Video 1
~ Compo site V j d~ Vklo o 2:
DVO ~ $-Video
-"-=::"'--;"~S-Video 2
Component VK1&.o
DVD Component 1 YPbPr
~
DVI • O VI
Comp o nent Vidl30
DVD ~ .. Component 2 YCbCr
~ .
PC r===1y,-,G~A~ __ ~
~ ~ .. PC (R,G,B)
m1J41Q~1
figure 4: T est Env ironmen t
1. PC test controller with the Microsoft Windows XP or Windows 2000 operating system and with
the following programs and binary files installed
on the hard disc:
a. PC application diagnostic support software:
• Diagnostic.exe
b DVLX4xCx Diagnostic Software:
• Test1.hex
• Test2 hex
c.
PC application Flash Loader program ~
• FLASHLoader exe
d. DVLX4xCx Operational Software files:
• MN203.hex
• MN203_0SD1.hex
Use the 9-pin serial cable to connect this PC to the RS-232 input of the DVLX4xCx.
2. DVD player audiolvideo source unit connected to the following DVLX4xCx front panel inputs·
a. VIDEO 1 video input and AUDIO UMONO and AUDIO R audio inputs.
b. S-VIDEO 1 video inputs ~
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3. DVD player audiolvideo source unit connected to the following DVLX4xCx rear panel inputs:
a. VIDEO 2 video input and AUDIO UMONO and AUDIO R audio inputs.
b. S-VIDEO 2 video inputs
4. DVD player audio/video source unit connected to the follOwing DVLX4xCx rear panel inputs:
a. COMPONENT 1 (YPbPr) video input and COMP.1-L and COMP.
1-R audio inputs.
b DVI video input and DVI-L and DVI-R audio inputs.
5. DVD player audiolvideo source unit connected to the following DVLX4xCx rear panel inputs:
a. COMPONENT 2 (YCbCr) video input and CO
MP .2 -L and COMP.2-R audio inputs.
6. DVD player audio/video source unn connected through RF modulators to the following
DVLX4xCx rear panel inputs:
a. The DVD player's S-Video output to the RF modulator; the RF modulator's output to the ANT
A input with a coaxial cable.
b. The DVD player's Video output to the RF
modulato~ the RF modulator's output to the ANT B
IOput with a coaxial cable.
7. PC audiolvideo source unn displaying the VGA test pattern shown in Figure 5.
,
I
-,
, .
Figure 5: VG A T est Pattern
Use the VGA cable to connect this PC to the PC input of the DVLX4xCx
8. Barcode reader to enter the DVLX4xCx Serial Number (S/N) into the PC test controller.
Disconnect switch on the 110 VAC powering the DVLX4xCx.
The DVD players
in the test environment are not exclusive to any specific manufacturer's model.
However, one example
of a DVD player sunable for the test environment is the Samsung Model DVD-
HD841
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After the test equipment in the test environment is connected to the DVLX4xCx and the 110 V AC power
is applied to
th e DVLX4xCx, the lest procedure proceeds as described in the following sections.
Service Procedure
Table 2 is a service checklist showing Ihe most typical repair scenarios when the UUT is capable of
functioning normally but with degraded operation; i.e
., is exhibiting problems while functioning as a TV
Ta b le 2 lists typical problem symptoms, possible causes, and remedy actions. If the problem still pe mists
after
fo llowi ng the test checklist remedy actions or if the UUT is incapable of functioning as a TV, th en
you ne
ed to proceed directly to the detailed Service Procedure, which ad dresses a more complete set of
repair scenarios. A flowchart
of the detailed Service Procedure is shown in Figure 6 through Figure 8.
T
he references SP-A, SP-C, SP-C1, etc., identified in Table 2 correspond to specific positi on s in Ihe
fl owchart. Table 3 provides further delails to speCific remedy actions shown in the flowchart. These
details are numbered SPN-1 through SPN-23 corresponding to the numbers
in the flow ch art for
identification wah speCific remedy actions.
Table 2: S ervice Checklist
S ymptom Possible Probl em Remedy A ction
Reference
Image problems o Section 7
a Settings menu selection
in t he
Operational Software
LAMP LED
on
• Reset to factory defaults
• Configuration wrong
o SPN- 21
lifetime
Screen darker and
• Lamp exceeds rated • Replace Lamp
o SPN- 21
less clear • Lamp exceeds rated • Replace Lamp
lifetime
IR malfunction, • LED Board faun i> Run Service Procedure first o SP-A
Keypad OK o SPN-12
• LED Board cable fault •
If problem pemists, change
Power Suppl
y.
IR
m a ~ unction,
• Power Supply
• Control Board faun • First replace Control Board and • SPN-5
K
ey pad malfunction ACBL 14 cable.
• Control Board cable faun • SPN-12
• Power Supply •
If problem persists, Replace
Power Supply
POWER LED not
on o SP-A
• Video Board fault • Run Service Procedure
• Power Supply faun
• LED
Boa rd faun
• LED B
oa rd cable fault
Foll
ow in g inputs are o SPN-6
not available'
Component2
Video 2
S-Video 2
No
im age,
• Video Board fault • Replace Video Board
o SPN-6
normal menu
Distort
ed image,
• Video Board fault • Replace Video Board
o SPN -5
nor
ma l menu
Distorted Image,
• Video Board fault • Replace Video Board
o SP-A
distorted menu • LVDS cable connector • Run Service Procedure.
J15 faun ;
• Video Board fault
• LVDS cable faun
• Opti
ca l Enqine fault
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Rea r Projection TV Servlc .. Manual
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Symptom Possible Pr oblem R emedv Actio n R
eference
Extreme co lo r
domin
ati on (e g.
extremely green)
• Video Board fault • Repl
ace Video Boa rd
• SPN-6
Extre
me low
brightness • Video Board fault
• Optical Engine
fau~
• First replace Video Board
• If problem persists, Replace
O~! ical Engine
• SPN-6
• SPN-23
No tuner In pu t • Tuner Board
fau~
• Tuner Board cab
le fault • Replace Tuner Boa
rd
• Replace Tuner ACBL09 cable • SPN-6
• Table 4
No so und
normal beeper • Audio Board fault (finer or mux)
• Cable f
au lt
• Replace Audio Board
• Rep
la ce Audio Board ACBL10 &
ACBL 11 cables
• SPN-6
• Table 4
• • •
• • •
Fa n malfunction • Fan fault
• Cable
fa ul t
•
• First repl
ace fan and ACBL17 or
ACBL18 cable.
• If problem persist,
run Service
Procedu
re .
• Table 4
• SP-A
Lampturns on once
but fails
on several
more attempts
• Power Supply faun
• • First replace Power Supply
•
If problem persists, run Service
Procedure.
• SPN-12
• SP-A
A flowchart
of the test procedure is shown in Figure 6 through Figure 8.
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'.'*'1
LNCI Dl 51ifT1OSacs Telit
Programinto WT
lose PC rat.h loodlr
'lJnplug UUT from "0 V I4.C
wat , I) r,eoord!I
PlJgWTltilo110VAC
u~ LljT ttorn 11 0 VAC:
l8I.n::hPC 1=~~ L.oadI!Ir"
Wall 10 MCO/'¥l5
Plug \JUT lito 110 \lA C
Unp4 yg UU'T fl om 110 vA C
lau nch pC · ~fI'ih LoadIIr'
W81 11 C! 'M!ClOnds
PilJfiJ !JUT Into 110 VAC
~~ · ~·!?~ ~~~~ A
rI DM~
..
C )- -- .-I
I""
l..t1pIug uur fr'CIrn 110 V AG
Opom ~ooJcs
lJnp+ug l.Jt.tr from 110 VAC
R
epace Vid!Io Boatd
Audio Board 9
u~ UUT trom 1 \Ij V~
~ ~!le"""",
-"6oa<d&PS
Auo I.Af'r irtD '10 VAC
Figure 6: Service Procedure F lowc hart
sorvice fT101; oual i DVLX
Conndent.bl
'O~~-

Unplug UUT rrom 110 VAG
Wait 10 :&eeorWis
PlugUUT Into 1Hl '.lAC
No rm al Rf;ljOOose
uLIT ~ers 61andboj M ode
WTI'OWER.......,
OnSoIkl Reo
~Ui POWER Bvn on
onWT
Nonn
al
Rnwnoo
lJUT Erters T t.WJt..O n M iXIe
WT PO\NER La~
Fl eshir'IjJ Gceen
no
N orma' Rf!§MOMf
UlJT Tl,ms On
WT f'(MgO La""
On Sold GfMn
W T
T IM'IlId On?
PI.\ t.bm t mnnc~ !-'n..o.;:ab ..
Oisccme~ !JUT fr om
t l!'&t en.llrOf¥neft
F igure 7: Service Procedure Fl owchart (Continued)
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~ Iug ulJi ' fom 110 I/AC
o.oo~lAHC~10
"",lea l E ~
~ 9fncf'l PQw:6f
S~ f(QI1l110 'lAC
COI"ll18G"I AI OpIicaJ EngI ne
C3bitl 'rom gen¢h V-ideo
Boarel & PI)v,oef Supply
Pl ug Benc: h Power S4JppIr
intO 110 'lAC
..
Repl"ceCa~
Fi g ur e 8: Service Procedure Fl owchart (Continued)
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T able 3: Se<vice Procedure Number (SPN) Description
SPN Oeser
Ipllon
Yo u wi ll s ee the menu below. Wh en the UU T is not plugged into 110 VAC, the Brow.;e button and
Q)
th e Start button will be non-selectable and correspondi ng ly shaded gra y, When the UUT is p lu gged
into 110 VAC, the Browse button will be selectable and correspondingly not
sh aded. Use the
Br owse button to find tile file to be loaded. Once a file is selected. rt wiHappear in th e bottom area
and I
he Start button wi ll be selectable and not shaded.
.~-
®
In the PC Flash Loader, click on browse and select m es Te st1.hex and T es t2.he x. and then click on
® Start.
The DV
LX message appearing on the PC is shown below.
... , __ t.
" I
I
.................. . ......... . ....... .. ............. ........................
.. DIJl>l Hone, 1m OPS'II c~ ,,_ "'-lIttr -Iw ~I.IS l~hnalll1illle$ LIU·
• Cov,irlglll (d ~. ~ ~Itn T..dY!o]09~M. lJI::. ~U Ihdlh: ~~ . -
........ . ................... . ......... . ..... . ................. .... .. .. ........ .. .. ...... _.
hello
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SPN Description
o Ea ch time ENTER is pressed on the PC , the Fl ash Loader responds with the character > as shown
below.
If\ n._1......... ~
..., ... - ..... -Q ~
n ~ 'J " •
.. [l.~UI Mo:.oe:t - 2tl OPS\II - ~ lint bUor - tJ,.l' Of'tUS lechIol09ln I TO ..
- CtJpyr.Qt1t (d 1881-28it3 Oplus l4!(hnolOlJiotS UK:. nil i.thl" re-Y~ . ..
~ ... ~.," ..... .- ..... , ......... " .... ,., ...... ........... - ............... .. ......... .
"'- li n
•
On the PC, run file Di agnostic.exe, You will see the fo llowing menu, aski ng for the U UT serial
numbe
r.
DVLXFCT
PN
SN
~
Wh en you press OK, the followi ng menu appears li sti ng the compon en ts 10 be teste d. W hen yo u
pr ess ST ART , Ihe test proceeds automa ti cally through the list oftested components an d stops wih en
it reaches a specific component failure.
. :>".
flO'l"ln
t
l9 fJ..I1'
'--
-- . u
-
.
~
.~
,-
•
......
~
~
-' l
¥lT
..
J -
.... .
.... " t
OO 'j T '
~
S& rAee_mIiIInua U
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SPN Description
® A message writt en on the PC scre en identifies whether the components p as s ed or wheth er a
component
fa il ure is fo und. Furthermor e. a file is w ri tt en wit h the SN as a file name to record th is
information. After the failed component is replaced.
th e Di agnosti cs test is run again to either
completion or
to Identi fy an other failed component. ThIS con~nu es until all components pass the
test.
Component
Re place Procedure
Video Board E-Box Contents Replacement Proaedure, Section
5.1
Audio Board E-Box Contents Replacement ProcedUle, Section 5 1
Tuner Board E-B
ox Co ntents Replacement Procedure, Sea ion 5.1
C
on trol Bo ald Contr ol Board and LE D Board Replac em ent Procedure, Section 5 .3.
LED Board Control Board and LED
Bo ard Re placement Procedure, Secti on 5.3.
See E-Box Contents Replacement Procedure, Section 5. 1.
See E-Box Contents Replacement Procedure,
S~on 5.1 ,4 th picture.
S
ee E-Box Contents Re pl acement Pr oCed ure, Section 5.1.
See E-Box Contents
Re placement Procedure, Section 5.1. 1st picture
The figure below
is the pinout ofconne dors for the output voltag es on the Power Supply showing the
9-pin connector C
ON1 and the 2-pln con nedo r CON2.
§]Ioooooooool
See E- Box Contents Replacement P rOCedur e, Section 5. 1.
See E-B ox Contents Re placement Procedure. Se~on 5.1. 4th picture. Replace cable ACBL16 (see
Table 4)
In t
he Flash Loader on th e PC, click on brows e, select the files MN203.hex and MN203_0SD1.hex
an d then click on Start.
On the UUT Re mote Control. press the keypad sequence 20496354 to bring up the Maintena nce
Menu shown below.
See Sec
ti on 9 for lunnl ng Maintenance Menu
servlce_ m;IIn u ;:I U
Ov\"X Conl'idlt'ttJaJ . 17·
10 o.c:-n~ 11)0.1

Rear ProJecllOfl TV Sor;Ice Mall ual
SPN Description
@ 1.
U se the remote control or front pa ne l push button switches to tu rn th e po wer o ff. a nd after
waiting several minutes unplug the TV. (The cooling fans will continue to blow for several
minutes afler turning the power off )
2. Use a screwdriver
to re mo ve the six (6] SCf ews fastening the lamp door. which is the panel w ith
louvers located on the b<\ck ofthe TV, a nd remove the la mp door .
3. Replace the Intenoe!< Swrt ch.
4. Replace the lamp do or.
Interlock SWltch
Lamp Door
® Replace cable ACBL19 (see Table 4)
SE H'\Ito. _ m3 n~l_ ;
DVLX Confiden1ial
10DDc.mber 2QC.$

Rear Projection TV Servtce Manual
,':«;'1
SPN Description _
@ Disconnect cables from the following connectors of the Optical Engine.
ine
J3 J1 J6
Cable JDSU connector
AC8
L01 J1
ACB
L0 4 J3
ACBL07
J6
Disconnect Ballas! connect from Power Supply.
..
Zeiss Optical Eng .i ~ ::;.. ____ ...., ne
..
J3 J2 J1
Cable Zeiss connector
ACB l 02 J1
AC8L06 J2
ACBl06 J3
Disconnect Ballast connect from Power Supply.
service tniIInual 1 OV\..X Confidentiill ·19 -
10 o.c.mc. 200' -

Rut Projection TV SH1IIce Manua'
S PN Oeserl pIlon
@ Connect the Opltcal Engine to the bench Video Board and the bench Power Supply cables as follows
JDSU Optical
En gine
Cable JDSU connector Bench Video Boa
rd Bench Power Supply
ACB
L01 J1
J15
ACBL07
J6 J25
ACBL04 J3 CON1
Connect Ballast to
be nch Power Supp ly.
Zeiss Optical Engine
Cable Zeiss connector Bench Video Boa
rd
Bench Power SUDply
ACBL02
J1 J15
ACBL08 J2 J
25
AC BL06 J3 J26 CON1
Connect Ballast to be nch Power Supply.
See E-B
ox Contents Replacement Procedure, Section 5.1, 1sl picture.
See L
am p repl ac ement proc ed u re Section 5 2
Replace the (ollowing cables (see Table 4)
JDSU
ACBL01
ACBL07
Ze iss
AC BL02
ACBL08
service_rnanu·U DVLX Confidential) -
20-
lQ tJeeember '2O(W