Philips L9H.2E User manual

Colour
Television Ghassis
ft
lsÄrr\ttl^rÄ
rJlg! 17U!9\9 L9H.2E
AA
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Service
Contents
1. Technical Specifications
2. Safety-andmaintenance
instructions,
warningsandnotes.
3. Directionsforuse
4. Mechanicalinstructions
5. Servicemodes,
repairtipsand
faultfindingtrees
6. Wiring diagram
l2Cbusinterconnectiondiagram
Supplyvoltage
diagram
Blockdiagram
Testpointsoverviewandosci
llograms
7. Electricaldiagram'senPWB's
Page
2
4
6
9
9
21
22
22t23
24
25
Diagram
26
29
30
30
JI
32
33
34
35
36
J/
38
39
40
41
42
43
45
46
PWB
27/28
27/28
27128
27128
27/28
27128
27128
27t28
27t28
27/28
27/28
27/28
41
41
42
42
45
44
Contents
8. Alignments
9. Circuitdescriptionnewcircuitsand
list
ofabbreviations
10.Spare
parts
list
Page
47
52
61
@ gzz7851oo6s
tt
3
I
I
i
Power
supply
Horizontaldeflection
Verticaldeflection
Synchronisation
Tunerenvideo
lF
Diversity
table
45
Video
processing
Control
Frontcontrol
AVMono demodulator
Soundamplifier
Headphone
RearlO
Cinches
CRT
Panel
External
power
supply
Clock
Radio
-SP/LS
Smart
plug
/ loudspeaker
Smartcardintedace
(Diagram
A1)
(Diagram
42)
(Diagram
A3)
(Diagram
44)
(Diagram
A5)
(Diagram
A6)
(Diagram
A7)
(Diagram
A8)
(Diagram
49)
(Diagram
A10)
(Diagram
411)
(Diagram
A13)
(Diagram
B)
(Diagram
F)
(Diagram
Gl)
(Diagram
Hl)
(Diagram
l)
(Diagram
J)
OCopyright
reseNed
2OOOPhilipsConsumerElectronics
B.V.Eindhoven,The
Netherlands.Allrights
reserved.
No
part
ofthis
publication
maybe
reproduced,
storedinaretrieval systemortransmitted,inany
form
or
by
anymeans,
electronic,
mechanical,
photocopying,
or
otherwisewithoutthe
priorpermission
ofPhilips.
Published
byFM0062 ServicePaCE PrintedintheNetherlands Subjectto modification
,TV
(A19
-\- PHILIPS
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

]fl f @ Technicat
Specifications
1. Technical
Specifications
1.1 Introduction:
1.1.1 RangeLgH.2EChassis
Basic:
This
execution
isprovided with
a "Smart
loader"
and
"External
loudspeaker
socket".
Basic
plus:
Sameas
"Basic"
and additional
with
"Teletext"
ane
"LED
Clock".
Basic
plus
radio:Same
as
"Basic
plus"
and
additional
with
"FM
radio".
System:
Sameas
"Basic
plus"
andadditionala DCM
interface
panel
Tothe
DCM interface
panel
socalled
"smart
cards"can
be
connected.For
powering
thesmartcardalso
when
theset
is
switchedoff,
anexternal
power
supplyisadded inside.
1.1.2 Remotecontrols
Two
types
of remotecontrolsareavailable:
- Standard
Remote
control
fornormal
consumer
use:
- So
called
"set-up"
remotecontrol,type
T374A,
Thisremote
worksonRCSsystem7code
.With
this
remote
control
specific
nonconsumer
functionscanbeexecuted.
1.1.3 TV Commercial
/ Consumer
mode
The
software
gives
thepossibility toswitchbetween
"commercial"
and
"consumer
mode".
Inthe
consumermode
a limiteduserfunctions
are
avaiable.
1.3 Specification
oftheterminalsockets
Selectioncanbepeformed
withthesetupremote.
Selection:Presson
remotecontrol
"
0
2 4I9 5
andMENUkey,
then
usethe
"left"
or"right" keytoselectCommercialor
Consumermode.
HighlightSTORE
andpress
"left"
or"right"
keytostorechanges.
TVwill
gointostandbymodeafter
storing.
1.2 Specifications
Mains
voltage : 150V
-276Vac;
Mainsfrequency : 50- 60Hz
Maximum
power
consumption :
. 14":40W +l- 1OV"
. 20":56W
+/-
10%
, 21"'.58W
+/-
10%
Standby
power
consumption : 10W +/- 10o/o
Max.
Antenne-input :
Offair : 100dBV
Onair : 90dBV
Audio
outout
. Stereo:2.3W;2-lW
. Mono: 2- 2W:4W:3W;2W;1W
Tuners
. uV1316/4l-2
(PAL)
. uv 1316/ArU-2
(PAL)
. uv 1356c/Ar(PAL)
-+
Volume
cL 86532104
CL
96532159_024.eps
20't299
-+
Channel
ft
rr\Red
BATHROOM
SPEMER
CONNECTION
SMART LOADEA
CONNECTION
|--.----_________REsEss FoF
32PIN
SMARTCAAD
CONNECTION
@W- EXrl
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

Technical
Specifications
1.4 Specification
of
theterminal
sockets
1.4.1 Scart1:CVBS(in/out)+RGB(in)
.tuneratoutput
oooooooooo
oooooooooo
20
CL96532
137_056.eps
171199
PHONEJACK
FORBATHROOM
SPEAKER
1 -AudioOutR
2 -AudioIn
R
3 -AudioOutL
4 - Earthscreen
5 - Earthscreen
6 -AudioIn
L
7 - Blue
8 - CVBS status
9 - Earth
screen
.10_
_
11-
Green
12_
_
13-Earthscreen
14-
Earthscreen
15-
Red
16.
FBL
17-
Earthscreen
18-Earthscreen
19.
CVBS
20.
CVBS
21
- Earthsüeen
1.4.2 Headphone
(0.SVrms
<1ka)
(0.2-2vrms
>1oko)
(o,svrms
s 1kQ)
(0.2-2vrms
>1okQ)
(0.7vpp175C:)
(lNT
=
O-ZV,
EXT(16:9)
=
4.5-7V
,
EXT(a:3)
=
9.5-12V)
(0.7Vpp/75o)
(0.7Vpp/75o)
(>0.9V
RGBmode
)
(1vpp/7so)
'1,
4 Speaker
-
2 Speaker
+
cL 96532'141_002.eps
071299
o
I+
€
+
+
€+
+
Or
o
r
I
o
-Jack3.5mm 8-600cr
(4mW)
1.5 PCB
location
drawing
INTERFACE
- SYSTEM
SMARD
CARD
EPS - SYSTEM
(EXTERNAL
POWER
SUPPLY)
E RADIo+SP/LS
+
vssl
oR |- toNsysrem
E sers+ve1l
OR
If sP/Ls
-sYsrEM
- (SMARD
PLUGLOAOER
+LOUDSPEAKER
SOCKET
)
E
!E
E
E
E
E
E
E
E
@
M
&
1.4.3 Smart
plug loader
SMARTPLUGLOADER
U1
1,4,4 Smartcard connector
Clock
Data-in
+5V
Data-out
Ground
lR-data
RJIl
32 PIN SMART CARO CONNECTOR
"o o o o o o o o o o o o o o o ott l',,-1
q6o
o o o o o o o o o o o o o q l\-/
PIN
1 N.C.
2 GROUND
(POWEB)
3 +Izveps
4 GROUND
(ilC)
5 IR-DATA
6 POR
FOR
DCM
7 TV-CLOCK
8 OCM.OATA
9 TV-DATA
'10
+sveps
11 HORIZONTALSYNC
12 VERTICALSYNC
13 GROUND
CVBS-IN
14 SCL2
15 SDA2
16 N.C.
PIN
17 ANALOGBLUE
18 ANALOGGREEN
19 ANALOGREO
20 FASTBLANKING
21 GROUNOCVBS-OUT
22 CVBS-OUT
23 AUDTOOUTMONO
+
24 N.C.
25 AUDIOOUTMONO
_
26 GROUNDAUDIO IN
27 AUDIO
RIGHTOUT
28 AUDIOLEFTOUT
29 AUDIO
RIGHTIN
30 AUDIOLEFT
IN
31 CVBSry
tN
32 "a'lN C196532141001.€ps
070100
CRT
PANEL
POWER
SUPPLY
LINEDEFLECTION
FRAME
DEFLECTION
TUNERVIDEOIF
VIDEOPBOCESSING
CONTROL
FRONT
CONTROL
AMMONO DEMODULATOR
SMART
SOUND
+
IVIONO
SOUNDAMPLIFIER
HEADPHONE
BEARYO
SCART
CL06532004_005.eps
130100
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

@g@Safetyinstructions,maintenanceinStruction,WarningSandNotes
Safety
instructions,
maintenance
instruction,
warningsand
Notes
Safetyinstructions
forrepairs
A
1. Safety regulations
requirethatduring
a repair:
- The
setshould
be
connected
tothemains
via
an
isolating
transf
ormer;
- Satetycomponents,
indicatedby
thesymbol
A,
shouldbereplaced
bycomponents
identicaltothe
originalones;
- Whenreplacing
the
CRT,
safety
goggles
must
be
worn.
2. Safetyregulations
requirethataftera repairtheset musl
bereturned initsoriginal
condition.In
particular
attention
shouldbepaid
tothe following
points.
- Asastrict
precaution,
weadvise
you
to resolderthe
solder
joints
through
whichthehorizontal
deflection
currentis
flowing,
inparticular
('generalrepair
instruction'):
. All
pins
ofthelineoutputtransformer
(LOT);
. Fly-backcapacito(s);
. S-correctioncapacito(s);
r Lineoutputtransistor;
. Pins
of
theconnectorwithwires
tothedeflection
coil;
. Othercomponents
throughwhich
thedeflection
current
flows.
. Note:
. This
resoldering
isadvisedtoprevent
bad
connections
dueto metal
fatigueinsolder
ioints
andisthereforeonly
necessary
for
televisionsets
olderthan
2 years.
- Thewiretrees
andEHT
cableshould
berouted
correctlyand
fixedwiththemountedcableclamps.
- The
insulation
ofthemainsleadshould
be
checkedfor
externaldamage.
- Themains
lead
strainreliefshould
bechecked
forits
{unctioninorder
to avoidtouching
the CRT,hot
comoonents
orheatsinks.
- Theelectrical
DC
resistancebetween
themains
plug
and
thesecondary
sideshouldbechecked
(only
for
sets
whichhave
a mainsisolated
power
supply).This
checkcan
bedoneas
follows:
. Unplugthemainscordandconnect
awire
between
the
two
pins
of
themains
plug;
. Setthemainsswitchtothe"on"
position(keep
the
mainscord
unplugged!);
. Measure
theresistancevalue
betweenthepins of
themains
plug
and
themetalshielding
ofthetuner
orthe aerial
connection
on
theset.Thereading
shouldbebetween
4.5MOand12
MQ
. SwitchofftheTVandremove
thewirebetweenthe
twopins ofthemains
Plug.
- Thecabinet
shouldbecheckedtor
defectstoavoid
touching
ofanyinner
parts
bythecustomer.
2.2 Maintenanceinstruction
Itisrecommendedtohavea maintenance
inspectioncarried
out
byaqualified
serviceemployee.
Theinterval
dependson
theusage conditions:
- Whenthesetisusedunder
normalcircumstances,
for
example
in
aliving
room,therecommended
inlerval
is
3to
5 years.
- Whentheset
isusedin
circumstances
with
higherdust,
grease
ormoisture
levels,
for
example
ina kitchen,the
recommended
intervalis 1Year.
- The
maintenance
inspectioncontains
the
followingactions:
. Executethe
above
mentioned
'general
repair
instruction'
. Clean
the
power
supply
and
deflectioncircuitry
onthe
chassis.
. Cleanthepicture
tube
panel
andlheneck
ofthepicture
tube.
2.3 Warnings
1. ESDA
2. AlllCsandmany other
semiconductors
aresusceptible
to
electrostatic
discharges
(ESD).
Careless
handlingduring
repair
canreduce lifedrastically.
When
repairing,make
sure
that
you
areconnected
withthe
same
potential
as
the
massof the set by a wristband
withresistance.Keep
components
andtools
also
atthis
same
potential.
3. Available
ESD
protection
equipment:
- CompletekitESD3
(small
tablemat,Wristband,
Connectionbox,
ExtensioncableandEarthcable)
4822
310 10671
- Wristbandlestet 4822344 13999
4. Inorderto prevent damageto lcs andtransistors,
all high-
voltage
flashoversmustbeavoided.Inorder
toprevent
damage
tothe
picture
tube,
themethodshown
inFig.
2.1
should
beusedtodischarge
thepicture tube.Usea high-
voltage
probe
and
amultimeter
(position
DC-V).Discharge
until
themeterreading
is0V(after
approx.
30s).
5. Together
with
thedeflection
unitand
any
multipole
unit,
the
flat
square
picture
tubes
usedform
anintegratedunit.The
deflection
andthe
multipole
unitsareset
optimallyatthe
factory.
Adiustmentotthis
unit
during
repairis
thereforenot
recommended.
6. Becarefulduringmeasurements
in
thehigh-voltage
section
andonthepicture
tube.
7. Never
replacemodulesor
othercomponents
whiletheunit
is
switchedon.
8. When
making
settings,
use
plastic
ratherthan
metaltools.
This
will
prevent
anyshort
circuits
andthedanger
ofa
circuit
becomingunstable.
9. Wear
salety
goggles
during
replacement
ofthepicture
tube.
Notes
Thedirect
voltagesandoscillograms
shouldbemeasured
with
regard
tothe tunerearth
(+),orhotearth
($) as
this
iscalled.
Thedirect
voltagesandoscillograms
showninthe
diagrams
areindicative
and
shouldbemeasuredintheService
Default
Mode
(see
chapter
8)withacolour
barsignal
and
stereosound
(L:3
kHz,
R:1
kHz
unlessstated
otherwise)and
picture
carrier
at 475.25
MHz.
Where
necessary,theoscillograms
anddirectvoltages
are
measured
with
(11-)
and
withoutaerial
signal
()K;. Voltagesin
the
power
supplysection
are
measured
both
tornormal
operation
(O)
and
in
standby
1Ö;.
fnese valuesare
indicated
bymeans
of
theappropriate
symbols.
The
picture
tubePWBhas
printed
spark
gaps.
Each
spark
gap
isconnected
between
anelectrode
ofthe
picture
tubeandthe
Aquadagcoating.
Thesemiconductors
indicated
in
the
circuitdiagramand
in
the
parts
lists
are
completelyinterchangeable
perposition
withthe
semiconductors
intheunit,irrespective
of
the
type
indication
onthese
semiconductors.
2.1
I
o
2.4
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

Safety
instructions,
maintenanceinstruction,
warnings
and
Notes
Figure2-1
I
o
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

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8/6/2016
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8/6/2016
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www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

4.1
Mechanical
instructions
4. Mechanical
instructions
Service
positions
See
figure
4-1fortheservice
position.
Disconnecttheconnectingcable
feeding
the
right-handand
the
left-hand
speaker,
alsodisconnect
thedegaussingcable.
@lt@
Themono-carrier
isremovedby
pushing
thetwocentreclipsat
bothchassisbrackets
outwardsandpulling
thepanel
forward.
CL96532047_015.eps
280599
B
A
Figure4-1
I
o
Service
Modes,
DST,
error
messages,
protections,
faultfinding
repairtips
Inthischapterthefollowing
paragraphs
are
included:
5.1Test
points
5.2Service
Modes
5.3Themenusandsubmenus
5.4Errorcodebutferanderrorcodes
5.5
The
"blinking
LED"
procedure
5.6
Customerservicemode
(CSM
)
5.7ComPair
5.8
Orderingcompare
5.9
Troubleshootingtips
Test
points 5.2
Themainchassisisequipped
with
test
points
inthe
service
printing.
Thesetest
points
arereferringto
the
functionalblocks:
o A1-A2-A3,etc.:Test
points
forthe
AMMonoDemodulator
(
Ag
),
ITT
panel( D1)
and Soundamplifier
(D2
)
. C1-C2-C3,etc.:Test
points
forthecontrolcircuit
(
47 )and
the frontcontrol
(A8)
Test
points
fortheLine
deflection
circuit
(
F1-F2-F3,
etc.:
Test
points
fortheframedeflectioncircuit
(
A3)
l1-12-13,etc.:Test
points
lortheTuner
Video
lF
circuit
(
A5
)
5.
and
5.1
A2)
. P1-P2-P3,
etc.:
Test
points
for
thepower supply
(Al )
. S1-S2-S3,etc.:
Test
points
forthesynchronisation
circuit
(
(A4)
. V1-V2-V3,
etc.:
Test
points
for
lhe
video
processing
circuit
panel
(A6)andCRT
panel( B)
Measurements
areperformed underthe
following
conditions:
. Video:colourbarsignal
. audio:3kHz
left,lkHz right
. SetinSDMmode
Service
modes
Thesethas
four
services
modes:
. Service
DefaultMode
(SDM)
. Service
AlignmentMode
(SAM)
. CustomerService
Mode
(CSM)
. COMPAIRmode
Service
OefaultMode
(SDM)
The
purpose
oftheSDM
is:
5.2.1
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

@r@ServiceModes,DST,errormessageS,protections,fau|tfindingandrepair
. provide
asituation
with
predefined
settingsto
get
the
same
measurements
asinthismanual
. start
theblinkingLED
procedure
. Setting
ofoptionscontrols
. Inspect
the
error
buffer
Entering the SDM:
. Bytransmitting
the
"DEFAULT"
commandwiththe
RC71
50
Dealer
Service
Tool
(this
worksboth
while
theset
isin
normal
operation
modeorintheSAM)
. RCsequence
062596followedbythe
key "MENU" (only
viasetupremote,T3744)
Theinformation
displayed
onthescreen
intheSDMmodeis
given
infig.
5.1
(SDM
menu).
Exit the SDM:
Switchthe
settoStandby
orpress EXITontheDST
(the
error
bufferisalso
cleared).
Note:When
the
mains
power
isswitchedoff
while
the
set
isin
SDM,thesetwillswitchto SDM
immediatelywhenthemains
isswitched
onagain.
(Theenorbuffer
willnot
becleared
).
Pre-defined conditions
TheSDMsetsthefollowing
pre-defined
conditions:
. PallSecamsets:tuningat 475.25PAL
(For
France
select
theL'-signal
)
. Volumelevelissetto25"/"
(ol
themaximumvolume
level).
. Other
picture
andsound
settingsareset
to50%.
Thefollowingfunctionsare
"ignored"
inSDM
since
they
interferewith
diagnosing/repairing
aset.
"lgnoring"
meansthat
theeventthat istriggered
isnotexecuted,thesetting
remains
unchanged.
. (Sleep)Timer
. Bluemute
. Autoswitch
off
. Hotel
orHospitality
Mode
. Child
lock
orParentallock
. Skipping,blankingof"Not
favourite"
presenVchannels
. AutomaticstoringofPersonalPresetsettings
. Automatic
user
menutime-out
Allother
controls
operate
normally.
5.2.2 Special
functions in SDM
Access to SAM
By
pressing
the
"MENU"
buttonon
theremote
controluntilSAM
is
presented.
(see
fig.5.1)
TV SETUP S
TV LOCK
]NSTALLATION
BRrcHrNEss llllll......31
col,ouR llllll......31
coNrRAsr llllll......31
remains
displayedintop
ofscreen).Pressingthe
"MENU"
key
again
willreturn
tothe
SDM
mode.
Figure5.'lService
Default
Modescreensandstructure
E
x
pIanation note
s/rcfe rences:
'1
. "LLLL" Operation
hourstimer
(hexadecimal)
2. Software identification
ofthemain
micro
controller
(LeHBBC
X.Y)
. LgH
is
thechassisnameforL9H
. BBCis
2 letter
and1digitcombination
to indicate
the
softwaretype
andthesupportedlanguages:
. X= (main
versionnumber)
. Y= (subversion
number)BB= (range specification
)
3. "SDM"To indicate
thatthe TV set is inthe servicedefault
mode
4. "OP"
OptionsCode
whichexistsof2 characters.
ltis
possible
tochange
eachoptioncode
5. "VALUE"
The
value
oftheselectedoption
(ON/OFF
ora
combination
of2 letters
)
6. "XXX" Value ofthe
optionsbytes
(OB1..OB7)
7. "ERR'The lastfive
detectederrors;
Theleftmostnumber
indicatesthemost
recenterrordetected.
ThecursorUporcursor
DOWNcommand
canbeusedto
selectthe
nexVprevious
option;
The
cursor
LEFTandcursor
RIGHTcommand
canbeused tochangetheoption
value.
Remark:
When
theoption-codeRC
=OFF, theP+andthe P-
keyhavethesame
functions
asthecursorUP/DOWN
keys
while
the VOL+
and
the
VOL-keyhavethesamefunction
as
thecursorLEFT/RIGHT
keys.When
the
option
RC
= OFFitis
not
possible
tochange
thechannel
preset
ortoadlust
the
volume
wheninSAM/SDMmenu. Using
a Lgremotecontrol,
option-code
RC
=ON,theP+,P-,VOL-and
VOL+canbe
used
tochange
thepreset
and/or
toadapt thevolume,
whilethe
menu-cursor
keys
areusedtoselecttheoption
andtochange
its
value.
Foranextendedoverview
oftheoDtion
codesseeChapter
8 -
Ootions
5.2.3 Service
AlignmentMode
(SAM)
Thepurpose
of
theSAM istodotuningadjustments,
align
the
white
tone,adjust
the
picturegeometry
anddosound
adjustments.
Forrecognitionofthe
SAM,
"SAM"
isdisplayedatthe
top
ofthe
rightside
ofthescreen
Entering SAM:
. By
pressing
the"ALIGN"buttoncommand
on the DST
RC7150
(Dealer
Service
Tool)
. When
thesetisinSDMbypressing
themenu
key
orthe
local
keyboard
keys
"vol
+"and
"vol
l simultantanouslyby
>4
seconds.
. ExittheSAM:
Switch
theset
tostandbyorpress EXITon
theDST
(the
enor
buffer
is
cleared).
Note:When
themains
oower
isswitchedoff
whilethesetisin
SAM,
theset
willswitchto
SAM
immediately
whenthemainsis
switched
onagain. (Theerrorbuffer willnotbecleared
).
IntheSAM
the
following
information
isdisplayedon
the
screen:
I
O
LI]LL LgHBBC X.Y SDM
OP VALUE
oB1 0B2 0B3 0B4 0B5 085 087
ERR xx xx xx xx *x
@r S
Figure5-1
Access
tonormalusermenu
Pressing
the
"MENU"
button
ontheremote
controluntil
the
normalusermenu
(TV
Set
up;for
TVlock,
Installation,
Brightness,colourandcontrast
)is
presented
while
"S"
@
LgHBBC X,Y SAM
TUNER
WHITETONE
GEOMETRY
AKB '
VSD .
c8653214r 027.6ps
1712@
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

IC
rL
ServiceModes,DST,errormeSSages,protections,fau|tfindingandrepair@r@
@r
CL965321
41_028.eps
071299
Figure
5-2
Service
Alignment Modescreensandstructure
Access to normal usermenu
Pressingthe
"MENU"
buttononthe
remote
controlwill
enter
the
normaluser
menu
(
TVlock,
installation,brightness,
colourand
contrast
)while
"SAM"
remainsdisplayed
in
topofscreen.
Pressingthe
"MENU"
key
again
willreturntothelast
SAM
status.
Access to SDM
Pressingthe
"DEFAULT"
buttonontheDST
SAMmenu control
Menuitems
(AKB,
VSD,Tuner,Whitetone,
Geometryand
Audio)canbeselectedwiththecursorUp orcursorDOWN
key.Entryinto
theselecteditems
(sub
menus)
is
doneby
the
cursor
LEFT
orcursorRIGHTkey.Theselecteditemwill be
highlighted.
Withthecursor
LEFT/RIGHT
keys,itispossible
toincrease/
decease
the
valueoftheselecteditem.
lr
JI
1l
Jt
1l
it
I
o
SAM
L9O BBC X.Y
TUNER
fF-PLL
IF_PLL POS
AFA 1-
AFB L
TUNER
VfHITE TONE
GEOMETRY
AUD]O
AKB
VSD o
O
SAM
L9O BBC X.Y
NORMAL RED
L9O BBC X.Y
SOUND
A-FM
AT
STEREO
L9O BBC X.Y
VAM
@
<_
-
ttt/t=\lt!l
v
It
lr
J]
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Published in Heiloo Holland

@r@ServiceModes,DST,errormeSSageS,protections,faultfindingandrepair
5.3 Themenusandsubmenus 5.3.4 Geometrysub menu
Thegeometry
submenu containsthefollowing
items:
. SBL:Serviceblanking
. VSL: Vertical
slope
. VAM:Verticalamplitude
. VSH:Vertical
shift
. HSH:Horizontal
shift
. EW:E-W
amplitude
(only
ifoptionEW=ep)
. PW:E-W
parabola/width
(only
ifoption
EW=on)
. TC:E-Wtrapezium
(only
ifoptionEW=qn)
. VSC:Vertical
scroll
(only
ifoptionEW=on
and88=on)
. VX:Verticalzoom
(only
ifoption EW=6n;
. CP:E-Wcorner
parabola
(only
ifoption
EW=on)
. SC:Scorrection
. H60DeltaHSHfor
60H2.
. V60:DeltaVAMfor60H2.
. W43:Delta
EW
for4:3
(only
if
option
EW=en1
. S43:
DeltaVSLfor4:3
. 443:DeltaVAMfor4:3(only
ifoption
EW=on)
. C43:DeltaSCfor4:3(only
ifoption
EW=on)
. X43:DeltaVXfor4:3
(only
ifoptionEW=on)
Errorcodebufferanderrorcodes
. lF PLL :PLLAlignment
forallPAUSECAM
5.3.1 Tuner sub
menu
The
tunersub
menu
containsthefollowinoitems:
5.3.2
systems,excludingSECAM-LL'
. IF-PLLPos
. lF PLLofset
. AFW
. AGC
.YD
.CL
. AFA
. AFB
:AFC
Window
:AGC
take-over
point
:Defaultvalue
= 12
;Donot
align
:Defaultvalue
= 4 ;Donot
align
TheitemsAFAandAFBcannot
beselected.thevare
for
monitoring
purposes
only.
ThecommandscursorUPand
cursor
DOWNareusedto
select
thenexVoreviousitem.
The
commandscursor
LEFT
andcursorRIGHTareusedto
increase/decreasethevalueof
theselected
item.Thechanqed
valueswillbesenddirectly
totherelatedhardware.
Theitemvalues
are
storedinNVMifthissubmenu isleft.
Whitetone sub menu
ThecommandsMENUUPandMENUDOWNareused
to
selectthenexvoreviousitem.
ThecommandsMENULEFT
and
MENURIGHTareused
to
increase/decreasethevalue
oftheselected
item.Thechanged
valueswillbesenddirectly
totherelated hardware.
TheitemvaluesarestoredinNVM ifthissubmenuisleft.
Thewhitetonesubmenu containsthefollowino
items:
. NORMAL
RED
. NORMALGREEN
. NORMALBLUE
. DELTACOOL
RED
. DELTACOOLGREEN
. DELTACOOLBLUE
. DELTAWARM
RED
. DELTAWARMGREEN
. DELTAWARMBLUE
OSD
iskepttoa minimum
in
this
menu.inordertomakewhite
tonealignment
possible.
TheContrast
Plusfeature
(black
stretch)
isset toOFF
when
the
whitetonesubmenu
is
entered.
Audio
sub menu
Theaudiosubmenu
(for
stereo
setsonly)
containsthe
following
items:
. ST-NT
SB=50)
. SAP-NT
SB=56;
.LA
:Stereonoisetreshold
(only
ifoption
:SAPnoisetreshold
(only
ifoption
:Inputlevel
adjust
(only
ifoption
sB=s0/52155)
WIDEB :
Stereo
adjustforwide
bandexpander
(only
ifoptionS8=50/52155)
SPECT :Stereo
adjust
forspecialexpander
(only
ifoptionSB=50/52l55)
AT :Attacktimeat
AVL(only ifoption
sB=52l55)
STEREO :
Stereoadjust
MSP34xx
(only
ifoption
SB=IT/NB/NDIT)
Thesound
adjustments
submenuisnotavailable
inMono
sets.
Thepresence
ofanitem inthemenustronglydepends
onthe
selected
sound
board
(option
SB).
5,4.1 Errorcode buffer
Theerrorcodebutlercontainsallerrors
detectedsincethe
last
timethebufferwaserased.
The
buffer
iswrittenfromleftto
right.
o when
an
erroroccursthatisnot
yet
in
lheerrorcodebuffer,
theerroriswrittenattheleftsideand
allothererrorsshift
oneposition
tothe right
. theerrorcodebufferwillbecleared
inthe
following
cases:
1. exitingSDM orSAM withthe
"Standby"
commandon
theremotecontrol
2. transmittingthecommands
"EXIT'with
theDST
(RC7150)
3. transmittingthecommands
"DIAGNOSE-9-9-OK'
with
theDST.
. Theerrorbuffer
isnotresetwhenthe
setisswitchedoffby
themainsswitch.
Examples:
. ERROR:000 00:Noerrorsdetected
. ERROR:60000:ErrorcodeO
isthe
lastandonlv
detectederror
. ERROR:56000 :Errorcode6wasfirstdetectedand
error
code5 isthelastdetected
(newest)
error
5.4.2 Errorcodes
In
case
of non-intermittent
faults,
cleartheerrorbufferbefore
starting
therepairtoprevent
that
"old"
error
codesare
present.
lf
possible
checktheentirecontentof
theerrorbuffers.
Insome
situationsanerrorcode
isonlytheRESULT
ofanothererror
code
(and
nottheactualcause).
Note:afaultintheorotectiondetectioncircuitrvcanalso
lead
toa protection.
a. Error 0 = Noerror
b. Error1= X-ray
(OnlyforUSAsets
)
c. Error2 = High
beamcurrent
protection
- Highbeam
protection
active;
set
is
switched
to
protection;
error
code2is
placed
intheerrorbuffer;
the
LEDwill
blink
2times
( repeatedly
).
- Asthenameimplies,thecause
ofthis
protection
isa
toohighbeamcurrent
(bright
screen
withflyback
lines).Check
whetherthe+160V
supplytotheCRT
panel
ispresent. lfthevoltage
ispresent, themost
likelycauseistheCRT
panel
orthepicture tube.
DisconnecttheCRToaneltodeterminethecause. lf
5.4
I
O
5.3.3
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Published in Heiloo Holland

5.6 Gustomer
Service
Mode
(CSM)
Theset
is equipped
withthe
"Customer
Service
Mode"
(CSM).
CSM
is
aspecialservicemode
toidentifythe
statusoftheset.
Itcanbe
activatedand
deactivatedwiththeset-up
remote
transmitter
(RG4172BK).TheCSM isa 'read only'
mode,
therefore
modifications
in
this
modearenot
possible.
5.6.1 Entering
the CustomerService
Mode
(in"Commercial
mode)
TheCustomer
Service
Mode
canbe
switchedonbypressing
RECALLon
theset-up
remote
control
RG4172BK.
WhentheCSM
isactivated:
. picture
andsound
settings
are
setto nominal
levels
. "Service
unfriendly
modes"
are
ignored
. In
"Consumer
mode":RC
"Mute"
=localkeyboardbuton
>4
seconds
simultaneouslv
5.6.2 ExittheCustomerServiceMode
The
Customer
Service
Mode
willswitch
offafter:
. pressing
oneof
thekeys
RECALL
orMENUonthe set-up
remotecontrolRG4172BK
. switching
otftheTVsetwiththemainsswitch.
Allsettingsthat
werechanged
atactivation
ofCSMareset
backtotheinitialvalues
5.6.3 TheCustomerServiceModeinformationscreen
Thefollowing
information
isdisplayed
onscreen:
1 HHHHLgHAP-X.Y CSM
2 CODESxx xx xx xx xx
3 OP xxx xxx xxx xxx xxx xxx xxx
4 SYS: AUTO AUTO
6
7 MODE COMMERCTAL
8 SMARTPORT OFF
9 CHANNEL TV1
CL96532141
_029.eps
071299
Figure
5-3
Fig
5-3 c196532141-O29Screenlay-out CSM
A linenumberisplaced
for
everylineinorderto make
CSM
languageindependent.
- Line1:
Operating
hours/
Software
versionL9HBBC
X.Yy
Text
"CSM";
toindicate
that
the
set
isintheCustomer
Service
Mode
Line2: Errorbuffercontents
(seeparagraph
5.4.2)
Line3:Optioncodeinformation
(see
chapter8)
Line4:Configurationinformation.SYS:xxxx xxxx
indicatesthecolour
andsound
system
preset
Line5:" Nottunedwhen nosignal
isreceived
".
Line6:
not
used
Line
7:Mode.Indicateswhetherthesetisincommercial
or
consumer
mode
Line8: SmartPort.
Indicates
whethertheSmart
Port
is
selected
or nor.
Line9:Channel.
Indicatestheselectedchannel.
I
o
ServiceModes,DST,errormessa9eS,protections,fau|tfindingandrepair@r@
the+160V voltage
isnot
present,
checkR3416
and
D6409
( Horizontal
Deflection
-42 )
EWprotection:
lfthisorotection
is
active.
the
causecould
be
oneofthe
following
items;
. LOT5445
. S-correction
caoacitot
2407
. flyback capacilor 2434
. lineoutput
stage
. shortcircuitof tlybackdiode6434
. Lineuotputtransistor
7402ordrivertransistor
7400
d. Error3= Vertical
Guard
e. Error
4 = Sound
processor
( 1C7803
) llCenor(
MSP3415D
)
Sound
processor
does
notrespondto
themicro
controller
a. Error5= Bimos
( 1C7250
)start-up
error
( PORbit
)
b. Bimosstart-upregister
iscorruptedorthellClinetothe
Bimos
isalwayslowor nosupplyatpin12 oftheBimos).
Thiserrorisusuallydetected
duringstart-upandhence
will
prevent
thesetfromstarting
up.
c. Error6 = Bimos
(TDA884x
) llCerror
Notethatthis
error
mayalso
bereported
asa resultoferror
codes
4 (in thatcasetheBimos
mightnotbe
the
actua.
problem)
a. Error
7 = General llCerror. Thiswilloccurinthefollowing
CASES:
. SCLorSDAisshortedto qround
SCL
isshortedtoSDA
SDAorSCLconnectionat
themicrocontrollerisopen
circuit.
b. ErrorI =Microprocessor
(1C7600
)internal
RAMerror
(
A7
)
ThemicrocontrollerinternalRAMtest
indicated
anerror
ofthe
microcontroller
internal
memory
(tested
during
start-up);
a. Error9=EEPROM Configuration
error
(Checksumerror
);
EEPROMis
corrupted.
b. Error10
= llO
errorEEPROM
.NVmemory
(EEPROM)
doesnotrespondtothemicrocontroller
c. Error
11
=llC
errorPLLtuner.
Tuneriscorrupted
or
thellC
linetothe
Tuner
islowor nosupply
voltage
present
atpin
I, pin 6or
pin
7ofthe
tuner.
5.5 The
"blinking
LED"
procedure
Thecontentsoftheerror buffercanalsobemadevisible
throughthe
"blinking
LED"
procedure.
Thisis
especiallyuseful
whenthereisnopicture. Therearetwomethods:
WhentheSDM
isentered,
theLEDwillblink
the
numberof
times,equaltothevalueofthe
last
(newest)
errorcode
(repeatedly).
WiththeDST allerrorcodesintheerrorbuffercanbe
madevisible.
Transmit
thecommand:
"DIAGNOSE
xOK"
wherexisthe
position
intheerror
bufferto
bemade
visible
xrangesfrom
1,
(the
last
(actual)
erroflto
5(the
firsterror).
TheLEDwill
operateinthesame
wayasin
point
1,
but
now
fortheerror
codeonposition
x.
Examole:
Errorcode
positionl
2 3 4 5
Enorbuffer:8
9 5 0 0
. after
entering
SDM:blink
(8x)
- pause - blink
(8x)
-etc.
. aftertransmitting
"DIAGNOSE-
2-OK"
with
theDSTblink
(9x)
- pause
- blink
(9x)
-etc.
. aftertransmitting
"DIAGNOSE-
3-OK'with theDST
blink(5x)
- pause
- blink(Sx) -etc.
. aftertransmitting
"DIAGNOSE-
4-OK'with theDST
nothing
happens
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8/6/2016
Published in Heiloo Holland

5.7.1 Introduction
ComPair
(Computer
AidedRepair)
isaservice
tool
forPhilips
ConsumerElectronics
products.
ComPairis
a further
development
ontheDSTserviceremote
controlallowingfaster
andmore accuratediagnostics.
ComPairhasthreebig
advantages:
. ComPairhelps
you
toquickly
get
anunderstandinghowto
repairthesets in
shorttimeby
guidingyoustepbystep
through
therepair
procedures.
. ComPairallowsverydetailed
diagnostics
(on
l2Clevel)and
isthereforecapable
ofaccuratelyindicating
problem
areas.
Youdo nothaveto knowanythingaboutl2C
commands
yourself;
ComPairtakescareofthis.
. ComPairspeedsuptherepairtime
since
itcan
automaticallycommunicatewith
thesets
(when
themicro
processor
isworking)
andallrepair informationisdirectly
available.When
ComPairisinstalledtogetherwiththe
SearchManelectronicmanual,
schematicsandPCBsare
only
a mouse-click away.
ComPairconsistsofaWindowsbasedfaultfinding
program
andanintedace boxbetweenPCandthe(defective)product.
The
ComPair
interface
boxisconnectedtothePCviaa serial
orRS232
cable.
In
caseoftheL9Hchassis,the
ComPair
interfacebox
andtheL9Hcommunicateviaan llCcable
(bi-
directional)andviainfrared
communication
(uni-directional;
fromComPairinterface
boxto LgH.
The
ComPairfaultfinding
program
is
abletodetermine
the
problem
ofthe defectivetelevision.ComPaircan
gather
diagnosticinformationin2 ways:
1. Communicationtothetelevision
(automatic)
2. Asking
questions
toyou (manually)
ComPair
combines
this
information
withthereoairinformation
inits
databasetofindouthowto repairtheset.
Automatic infom ation gatheri ng
Readingouttheerrorbuffer,ComPaircanautomaticallyread
outthecontentsoftheentireerrorbuffer.
Diagnosis
onl2Clevel. ComPaircanaccessthel2Cbusof
the
television.ComPaircansendandreceivel2Ccommandstothe
microcontrollerofthetelevision.Inthiswayitispossible for
ComPair
tocommunicate
(read
andwrite)to
devices
onthel2C
bussesofthe
ManuaI informati on gatherin
g
Automaticdiagnosisisonly
possible
ifthemicrocontrollerof
thetelevisionisworking
correctly
andonlytoacertainextend.
Whenthisisnot
thecase,ComPair
will
guide
you
throughthe
faultfinding
treebyasking
youquestions
andshowing
you
examples.
You
cananswerbyclickingona link
(e.9.
textoran
waveform
pictures)
thatwillbring
you
tothenext
step
inthe
faultfinding
process.
A question couldbe:Do
youseesnow? (Click
onthecorrect
answer)
YES/ NO
Anexamolecanbe:MeasuretestDoint17andclickonthe
correctoscillogram
you
see
ontheoscilloscope
@r@ServiceModes,DST,errormessageS,protections,fau|tfindingandrepair
5.7 GomPair Bya combination ofautomatic
diagnosticsandaninteractive
question/answer
procedure,
ComPairwillenable
you
tofind
most
problems
in
afast andeffective
wav.
Additional features
Besidefaultfinding,
ComPair
provides
someadditiona
featureslike:
. Uploading/downloadingofpresets
. Managing
ofpreset lists
. Emulation
oftheDealer
ServiceTool
Connecting the ComPair inbrtace
The
ComPair
Browser
softwareshould
beinstalled
andset-up
beforeconnectingComPairtothe
set.
(See
the
ComPair
Browser
Quick
Reference
Cardforinstallation
instructions.)
1. ConnecttheRS232interface
cabletoafree
serial
(COMM)
port
onthePC
andtheComPairinterfacePC
connector
(connector
marked
with
"PC").
Placethe
ComPairinteface
boxstraightinfrontofthe
televisionwiththeinfrared
window
(marked
"lR")
directed
tothetelevisionLED.The
distancebetween
ComPairinterface
andtelevisionshould
bebetween
0.3and
0.6
meter.
(Note:
makesurethat
(also)
in
the
service
position,
the
ComPairinterfaceinlrared
window
is
pointed
tothe
standbyLEDofthetelevision
set
(no
objectsshould
blocktheinfraredbeam)
Connectthemainsadaotertothe
connectormarked
"POWER
9VDC"onthe
ComPair
interface
Switch
theComPairinterfaceOFF
Switchthetelevisionset
OFF
withthemains
switch
Removetherearcover
ofthetelevisionset
Connecttheinterfacecable
(4822727
21641\lolhe
connectoronlhe rearsideoftheComPair interface
that
ismarked
"12C"
lsee Figure
5.5)
Connecttheotherend
oftheinterface cabletothe
ComPairconnectoronthemono-carrier
(see
figure5-
ol
Plugthemainsadapterinthemains
outletandswitch
ONtheinterface.Thegreen
andredLEDlight up
together.TheredLED
extinguishesafterapprox.1
second
(the
green
LED
remains
lit).
Start-upComPairandselect
"File"
menu,
"Open...:;
select
"L9.2
Faultfinding"
andclick "OK"
Clickontheicon
(fig.
5.6)toswitchONthe
communicationmode
(the
redLEDonthe
ComPair
interfacewilllight
up)
Switchonthetelevisionsetwiththemainsswitch
Whenthe
setisin standby.Clickon"Start-up in
ComPairmodefromstandby"inthe
ComPair
L9Hfault
findingtree,otherwisecontinue.
1V/divDC
1Ops/ div
Figure5-4
2.
3.
4.
5.
6.
7.
I
a
L
10.
11.
12.
13.
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8/6/2016
Published in Heiloo Holland

ServiceModes,DST,errormessa9es,protections,faultfindingandrepair@r@
5.9 TROUBLE
SHOOTING
TIPS
Inthis
paragraph
some
trouble
shootingtipsfor
the
deflection
andpower supply
circuitry
aredescribed.
Fordetailed
diagnostics,
check
the
faultfinding
tree
oruse
ComPair.
5.9.1 THEDEFLECTIONCIRGUIT:
1. Measure the
+VBATT
(95V)
ispresent across2551
(A2-
Linedeflection
).lfthe
voltage
isnot
present,
disconnect
coil5551.
(Horizontal
deflectionstage
isdisconnected).
lf
thevoltageis
present
then
the
problem
might
becausedby
the
deflectioncircuit.Possibilities:
. Transistor7402isfaultv
. Thedrivercircuitaround
transistor7400
is
faulty
o No horizontal
drive
signalcomingfrom
theBIMOS
7250-D
pin
40(44 - Synchronisation
)
. Timer-lC7607ortransistor
7608
isdefect (A7 -
Control
)
Note:
lfthe
Collector
of7402
isshorted
to
theEmitter,hick-
upnoisecanbeheard
fromthepower supply.Inthiscase
theE/W
protection
isdisabled.
is
correctlyworking
(a
parabolicpicture
)
Alsotakenoteof
protection
circuitsintheline
outputstage.
lfanyofthese
circuits
areactivated,theset
willshut
down,
Depending
on
the
protection,
the
ledwillblink
accordingto
thefaultdefined.Inorder
todeterminewhich
protection
circuitisactive,isolationofeachseparatecircuitis
necessary.These
protection
circuitsare:
. High
beam
current
protection
( LEDblinks
repetitively
2times)
-CRTpanel
(B)
Figure
5-6
Thesethasnowstarted
upin
ComPair
mode.Follow
the
instructionintheL9.H
faultfindingtree
todiagnosetheset
Notethatthe
OSD
works
but
thattheactualusercontrolis
disabled
OrderingComPair
ComPairordercodes:
_m
Figure
5-5
5.8
I
O
Starterkit
ComPair
+ SearchMan
software
+ ComPair
intedace
(excluding
transformer): 4822727 21
629
ComPairintedace
(excluding
transformer):4822
727
21631
ComPairtransformer
(continental)
Europe:
4822
727
21632
ComPairtransformer
UnitedKingdom:482272721633
Starterkit
ComPair
software:482272721634
StarterkitSearchMan
software:482272721635
StarterkitComPair
+ SearchMan
software:
4822727
21
636
SearchMan
CD(update):
482272721638
ComPairinterfacecable
(for
L9\:482272721641
. Vertical
protection( LEDblinks
repetitively3times
) -
Verticaldeflection
(A3)
5.9.2 THEPOWER
SUPPLY
To
trouble
shoot
theLgSMPS,
firstchecktheVaux
voltage
on
C2561. lfthis
voltageisnot
present,
check
f
useF1572and
D6560.
lfF1572
orD6560isnotopen circuit,
the
problem
might
be
caused
on
theprimary
sideofthe
switchingsupply.Check
the
outputofthebridgerectifieronC2508 for
approximately
300VDCataninputvoltageof230Vac.lfthis
voltage
is
missing,
check
thebridge
diodes6502..
6505
and
thefuse
1500.
lffuse
F1
500
isfoundopen,checkMOSFET
7518to
make
surethatthereisnoshortcircuit
present
andcheck
R3518.
lfthe
300VDC
ispresent on
C2508,checkfora start-
upvoltageofapprox. 13Vonpin1of 1C7520.lf nostart-up
voltageispresent,
check
ifR3510isopenordiode
6510
isa
short-circuit.ltisnecessarytohave
afeedback signalfrom
the
hot
primary
side
ofswitch
modetransformerT554S
at
pin
1
and
pin
2forthepower supplytooscillate.lfthe
start-upvoltage
of
13V
ispresent
onpin1 ot lC752Oand thesupplyisnot
oscillating,check
R3529andD6540.
Checkfor
a drive signalatthe
gate
ofMOSFET
7518,square
wave
signal
- P1.Check
pin
3 of1C7520 andR3525.
Todeterminedwhether
OVP
isactive.
checktheoresenceof
VauxatC2561.
Figure5-7
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

o
@r@ServiceModes,DST,errormessageS,protections,fau|tfindingandrepair
5.10 Faultfindingtrees
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www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

Service
Modes,DST,
error
messages,
protections,
fault
findingand
repair
o-l
N
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I
2
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www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

@r@ServiceModes,DST,errormessages,protections,fau|tfindingandrepair
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5-10
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland

Service
Modes,DST,error
messages,
protections,
faultfindingandrepair r@
I
oCL96532028_01
1.eps
Figure
5-11
Horizontalsection
Picture
unstable
horizontally.
Picture
widthtoo
small.
No
sync.
EAA/notok
Verticalsection
Vertical
picture
is
too
small
orunstable
(A4);<S3>,<S4>
OK Check/ Replace
(A4);
tC725o
(44);
<s2>,
OK
Check/ Replace
tc7460,R3463,
R3465,R3466,
D6460.C2464
(A3);<F3>,<F4>,
<F5>
OK
Check
/ Replace
(42)
TS7400,T57402,
LOT5445,C2407,
(47)
tC76O7,
TS7608
Check
/ Replace
(A3);
Vertical
defl.coil
L0222
1350
Check
/ |
(Aa);lC
leplace
;7250
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Published in Heiloo Holland

@r@ServiceModes,DST,errormeSsages,protections,fau|tfindingandrepair
Personal
nofes.'
o
I
I
o
www.freeservicemanuals.info
8/6/2016
Published in Heiloo Holland