Haier HTN13R12 User manual

NO:M-AM-US-131-76814 Edition: 2002.12.30
HTN13R12
COLORTELEVISION
ServiceManual
Haier
n Features
l 181 CHANNEL
l Front Audio/Video input
l V-CHIP,CCD
MODEL: HTN13R12
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Haier Group
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CONTENTS
1Contents--------------------------------------------------------------------1
2Product Code illumination andSeries Introduction--------------------2
3Features--------------------------------------------------------------------------------3
4SafetyPrecautions------------------------------------------------------------------4
5Warning and Cautions-------------------------------------------------------------5
6Net dimension----------------------------------------------------------------------11
7Partsand Functions--------------------------------------------------------------12
8Remote Controller Functions--------------------------------------------------13
9Program Diagram------------------------------------------------------------------14
10MaintenanceService and Trouble shooting------------------------------15
11Circuit Diagram---------------------------------------------------------------------18
12Circuit Explanation----------------------------------------------------------------22
13Adjustment---------------------------------------------------------------------------24
14ExplodedView----------------------------------------------------------------------26
15List of Parts--------------------------------------------------------------------------27
16 Damageable Parts List-----------------------------------------------------------39
17 Informationof Resistors andCapacitors----------------------------------39
CONTENTS
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2.Product Codeillumination and Series Introduction
HTN13 R12
Haier
Series Name
CRT size (unit: inch)
Color television appearance
Product Code illuminationand Series Introduction
FLAT CRT
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3.Features
MODEL
HS-2190 MODEL TV-9708
NO.
ITEM FUNCTION NO. ITEM FUNCTION
1
Main IC 76814 24 Digital curtain ×
2
CRT FS 25 Slow fading on & off ×
3
Color system NTSC 26 Semitransparent menu ×
4
Audio system M27 Non-flashing channel changing
×
5
Numberof channels 181 28 ZOOM ×
6
OSD language E、F、S 29 16:9 mode ×
7
PICTURE
Multi-picture modes √30 Games ×
8
AV stereo ×31 Calendar ×
9
Super woofer ×32 Child-lock ×
10
Surrounding sound ×33 Multi-functional lock ×
11
Treble/bass boost ×34 No-picture listening ×
12
Left/right balancer √35 Background light ×
13
NICAM ×36 Auto-timer on √
14
Multi-audio modes ×37 CCD √
15
Tone adjuster ×38
SOFTWARE
V-CHIP √
16
MTS/SAP ×39 Number of built-in speakers 1
17
AUDIO
Auto-volume leveling ×40 Audio output power (W) 2W
18
AV input Front 1 41
Totalpower input（W）58
19
AV output ×42
Voltage range（V）~120
20
DVD terminal ×43
Powerfrequency（Hz）60
21
S-video jack ×44 Time of sleep timer (MINS) 120
22
Headphone socket ×45 Net weight (KG) 9.2
23
JACK
SCART socket ×46 Gross weight (KG) 11.5
47
Net dimension (MM) 354×380×
330
48
Packaged dimension (MM) 435×435×
400
49
Quantityfor 20' container ×
50
Quantityfor 40' container ×
51
PARAMETER
Quantityfor 40' high container
×
Features
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4. SafetyPrecautions
SAFETYPRECAUTIONS
IMPORTANT SAFETYNOTICE
Manyelectrical identifythese parts and mechanicalpartsinthis chassis have specialsafety-related
characteristics! In the Schematic Diagram andReplacement Parts List.
Itis essentialthat these specialsafetyparts shouldbe replaced withthe samecomponents as
recommended in this manual to prevent X-RADIATION, Shock, Fire, orother Hazards.
Do notmodifytheoriginal designwithout permissionofthe manufacturer.
General Guidance
An Isolation Transformershouldalwaysbe used duringthe servicing ofareceiverwhose chassisis
not isolated from theACpower line. Use atransformer ofadequatepower rating as this protects the
technicianfrom accidents that might resultinpersonal injurycausedby electricalshocks.
Itwillalsoprotect the receiver anditscomponentsfrombeing damaged byaccidentalshortsofthe
circuitrythat might be inadvertentlyintroduced during the service operation.
If anyfuse (or Fusible Resistor) in this TV receiver is blown, replace it with a specified one.
When replacingahigh wattageresistor (OxideMetal FilmResistor,over 1W),keeptheresistor
10mm awayfromPCB.
Keepwires awayfrom high voltage or high temperatureparts.
Duetothe highvacuum andlarge surfaceareaofthepicturetube, extremecare shouldbe taken in
handling the Picture Tube. Do notlift the Picture Tube byits Neck.
X-RAYRadiation
Warning:
ThesourceofX-RAYRADIATION inthisTVreceiver isthe High VoltageSection andthe Picture
Tube.
Forcontinued X-RAYRADIATIONprotection,thereplacement tube must be ofthe sametypeas
specified intheReplacementParts List.
Before returning the receiver to the customer,
Alwaysperform an AC leakagecurrentcheckonthe exposedmetallic partsofthe cabinet,such as
antennas, terminals, etc.,tomake sure that the set is safetooperatewithout anydanger of electrical
shock.
SafetyPrecautions
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5.Warning and Cautions
CAUTION: Beforeservicing receivers covered bythis servicemanual and its supplements and
addenda,read andfollowthe SAFETYPRECAUTIONS.
1.WhenyoucleantheTVset,pleasepull
out thepowerplugfrom ACoutlet. Don't
cleanthecabinet andthescreen with
benzene,petrolandotherchemicals.
4.TopreventtheTV setfromfiringand
electricshock,don't
maketheTVsetrain
ormoisture.
2.
Inordertoprolongtheusinglife ofthe
TVset,pleaseplaceitonaventilated
place.
5.Don'topenthebackcover,otherwiseitis
possibletodamagethecomponentsinthe
TVsetandharmyou.
3. Don'tplace the
TV setinthe
sunshineornear
heatsource.
6.WhentheTVset isn'tgoingto be used
for longtime or itisinthunderand
lightening,pleasepullouttheplugfromAC
outletandtheantennaplugfromthecover
oftheTVset.
Explanationon thedisplay tube
Generally,it isnot neededtocleanthetubesurface.However, ifnecessary,itssurface can be
cleanedwith a dry cottonclothafter cutting offthepower.Don'tuse any cleanser.If using hard
cloth,thetubesurface willbedamaged.
Warning andCautions
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NOTE: Ifunforeseen circumstances createconflict betweenthefollowing servicing precautions and
anyofthe safetyprecautions, always followthe safetyprecautions.Remember: SafetyFirst.
General Servicing Precautions
1). Alwaysunplug the receiver ACpowercord fromtheAC power sourcebefore:
a.Removingor reinstallinganycomponent,circuit board moduleor anyotherassemblyofthe
receiver.
b.Disconnecting or reconnecting anyreceiver electrical plug or other electrical connection.
c. Connecting a test substitute inparallel withan electrolyticcapacitorin thereceiver.
CAUTION: Awrongsubstitutionpart or incorrect installationpolarityofelectrolytic capacitors
mayresultin anexplosionhazard.
d.Discharging the picture tube anode.
2). Test highvoltageonlybymeasuring it with anappropriatehigh voltage meteror other
voltage-measuringdevice (DVM,FETVOM,etc.) equipped withasuitable high voltageprobe. Do not
testhigh voltage by “drawing anarc”.
3) .Dischargethe picturetube anode onlyby(a) first connectingone end ofan insulated clip lead to
thedegaussingor kine aquadag grounding system shieldat thepoint where thepicturetube socket
ground lead is connected, and then (b) touchtheotherend oftheinsulated clipleadtothe picture
tube anode button,using aninsulating handle toavoid personal contact with high voltage.
4) .Do not sprays chemicals onornear this receiver or anyof its assemblies.
5). Unless specified otherwise inthis servicemanual, clean electrical contactsonlybyapplyingthe
following mixturetothe contacts with apipe cleaner,cotton-tipped stick or comparablenonabrasive
applicator;10% (by volume)Acetoneand 90% (byvolume)isopropyl alcohol(90%-99% strength)
CAUTION: This is a flammablemixture.
Unless specified otherwise in this service manual, lubricationofcontacts is notrequired.
6). Donot defeat anyplug/socketB+ voltageinterlocks withwhichreceivers coveredbythis
service manual might be equipped.
7). Donot applyACpower to this instrument and/or anyofitselectricalassemblies unless all
solid-statedeviceheat sinks are correctly installed.
8) Alwaysconnect thetestreceiver ground leadto thereceiver chassis groundbefore connecting
thetest receiver positive lead.
Always remove the testreceiver ground lead last.
9). Use with this receiver onlythetest fixtures specified inthisservice manual.
CAUTION: Do not connectthe test fixtureground strap toanyheat sink inthisreceiver.
Electrostatic allySensitive (ES) Devices
Some semiconductor (solidstate) devices canbedamagedeasilybystaticelectricity.Such
Warningand Cautions
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components are usuallycalled ElectrostaticallySensitive(ES) Devices. ExamplesoftypicalES
devices are integratedcircuitsandsome fieldeffect transistors and semiconductor “chip”
components. Thefollowing techniquesshouldbeused to help reducethe incidenceofcomponent
damage caused bystaticelectricity.
1) Immediatelybefore handlinganysemiconductorcomponent orsemiconductor- equipped
assembly,drainoffanyelectrostatic chargeonyour bodyby touching aknownearthground.
Alternatively,obtain and wear acommerciallyavailabledischargingwrist strap device,which should
be removed to preventpotentialshock prior to applyingpowerto the unitunder test.
2) After removing an electricalassemblyequipped with ES devices, placethe assemblyona
conductivesurface suchasaluminumfoil, to prevent electrostaticcharge buildup or exposure ofthe
assembly.
3) Use onlyagrounded-tipsolderingiron to solderorunsolder ES devices.
4) Useonly ananti-statictype folderremovaldevice. Somesolder removaldevices not classified as
“anti-static”can generateelectricalchargessufficient todamageES devices.
5) Donotusefreon-propelledchemicals.Thesecan generateelectrical charges sufficient to
damage ES devices.
6) Donot removeareplacement ES device from itsprotectivepackage untilimmediatelybefore you
are readytoinstallit.(Most replacementES devicesare packaged withleads electricallyshorted
togetherby conductivefoam,aluminum foil or comparable conductive material).
7) Immediatelybeforeremoving the protectivematerial fromtheleads ofareplacementES device,
touch the protectivematerialto the chassis or circuit assemblyinto which the device will be installed.
CAUTION: Be sure no power is applied to thechassis or circuit, andobserve allother safety
precautions.
8) Minimize bodilymotionswhenhandlingunpackaged replacementES devices.(Otherwiseeven
some normallyharmless motions suchas mutualbrushingofyour clothes fabricor liftingofyour
foot from a carpeted floor might generate static electricitysufficientto damage an ES device.)
General Soldering Guidelines
1) Use agrounded-tip, low-wattage solderingironandappropriatetipsize and shapethat will
maintain tip temperature within the rangeof500oF to600oF.
2) Use anappropriate gauge ofRMAresin-core solder composed of 60 parts tin/40 parts lead.
3) Keepthesoldering iron tip cleanand well tinned.
4) Thoroughlyclean thesurfaces to besoldered. Use amallwirebristle (0.5inch,or 1.25cm) brush
with a metalhandle. Do not use freon-propelled spay-oncleaners.
5) Use the following unsoldering technique
a. Allowthe soldering irontipto reachnormaltemperature.(500o F to 600o F)
b. Heatingthecomponent leaduntil the solder melts.
c.Quicklydrawthe meltedsolderwithan anti-static,suction-type solder removal device with
solder braid.
Warningand Cautions
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CAUTION: Work quicklyto avoid overheating the circuitboard printed foil.
1) Use the following unsoldering technique
a. Allowthe soldering irontipto reachnormaltemperature.(500o F to 600o F)
b. First,hold thesolderingiron tipand solder thestrandagainst the componentlead untilthe
solder melts.
c.Quicklymovethesoldering irontiptothe junction ofthecomponentleadand the printed
circuit foil,and hold itthere onlyuntilthe solder flowsontoandaroundboth the component
lead and thefoil.
CAUTION: Work quicklyto avoid overheating the circuitboard printed foil.
d. Closelyinspect the solder area and removeanyexcess or splashed solder with asmall
wire-bristlebrush.
Remove /Replacement
Some chassis circuit boardshaveslotted holes (oblong) through which the IC leads areinsertedand
then bent flatagainst the circuit foil. When holesare ofslotted type, thefollowing techniqueshould
be used to removeand replacetheIC.Whenworking withboards using thefamiliar round hole, use
the standardtechnique as outlined.
Removal
Desolderand straighten eachIC leadinone operation bygentlyprying up onthe leadwiththe
soldering iron tip as the solder melts.
Drawawaythemelted solderwithananti-staticsuction-type solder removal device (orwithsolder
braid) before removingtheIC.
Replacement
Carefullyinsertthe replacement ICin the circuit board.
Carefullybend eachIC lead against the circuitfoilpad andsolderit.
Clean thesolderedareaswith asmallwire-bristlebrush.(It is notnecessarytoreapply acrylic
coating totheareas).
Small-Signal”Discrete Transistor
Removal/Replacement
Remove the defectivetransistorby clipping its leads as closeaspossible tothecomponent body.
Bendinto a “U”shapetheend ofeachofthreeleads remaining onthe circuit board.
Bendinto a “U”shapethereplacementtransistor leads.
Connect the replacement transistor leads to the correspondingleads extending from the circuit board
andcrimp the “U”with long nosepliers to insure metal to metal contact then solder eachconnection.
Power Output, Transistor Device
Removal/Replacement
Heatand remove all solder fromaround the transistor leads.
Warningand Cautions
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Remove the heatsink mountingscrew (if soequipped).
Carefullyremovethetransistor fromtheheat sink ofthe circuit board.
Insert newtransistor inthecircuit board.
Solder eachtransistorlead,and clipoffexcess lead.
Replaceheat sink.
Diode Removal/Replacement
Remove defectivediodeby clipping its leads as closeaspossible todiode body.
Bendthetwo remaining leads perpendicularlytothecircuit board.
Observing diode polarity,wrap eachlead ofthenewdiode round the correspondingleadon the
circuitboard.
Securelycrimp eachconnection andsolderit.
Inspect (onthe circuit board copperside)thesolder joints ofthetwo “original”leads. If theyare not
shiny,reheatthem and if necessary,apply additionalsolder.
Fuseand ConventionalResistor
Removal/Replacement
1) Clip eachfuseor resistorleadattop ofthe circuitboard hollowstake.
2) Securelycrimp the leads of replacement componentaround notchatstake top.
3) Solder the connections
CAUTION: Maintain originalspacingbetween thereplacedcomponentand adjacent components
and the circuit boardto prevent excessivecomponent temperatures.
Circuit Board Foil Repair
Excessiveheat applied to thecopper foil ofanyprintedcircuit board willweaken the adhesivethat
bonds foilto thecircuitboardcausingthe foil toseparate fromor “lift-off”theboard. The following
guidelines and procedures shouldbe followed whenever this condition is encountered.
At ICConnections
Torepairadefective copper pattern atIC connections usethe followingprocedure to install ajumper
wireon thecopperpattern side ofthe circuitboard. (Use this techniqueonlyon IC connections).
1) Carefullyremovethe damaged copperpattern with asharp knife. (Remove onlyas much copper
as absolutely necessary).
2) Carefullyscratchawaythe solderresist and acrylic coating (ifused) fromtheend of the remaining
copper pattern.
3) Bendasmall “U”in one endofasmall gaugejumper wireand carefullycrimp it aroundthe IC pin.
Solder the ICconnection.
4) Routethe jumper wire alongthepathofthe out-awaycopper pattern andlet itoverlapthe
previouslyscrapedendofthe goodcopper pattern. Soldertheoverlapped areaandclipoffany
excess jumper wire.
Warningand Cautions
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At other connections
Use thefollowing techniquetorepairthedefective copper pattern atconnectionsother than IC Pins.
This technique involvestheinstallation ofa jumper wireon thecomponent sideofthe circuit board.
1) Remove the defectivecopper patternwithasharp knife.
Remove at least 1/4 inchofcopper,to insure that a hazardous conditionwillnot exist ifthe jumper
wire opens.
2) Trace alongthe copper pattern from both sides ofthe pattern break and locatethe nearest
componentthat is directlyconnected to the affected copper pattern.
3) Connectinsulated20-gauge jumperwirefromthe leadofthe nearestcomponentonone side of
the pattern breakto the lead ofthe nearestcomponent on the other side.
Carefullycrimp and solder the connections.
CAUTION: Besuretheinsulatedjumperwire is dressedso that itdoesnot touchcomponentsor
sharpedges.
Warning and Cautions
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6.Net dimension
Haier
353
333
368
.
Net dimension
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7.Parts and Functions
POWER
CHANNEL
VOLUMEMENUTV/AV
AUDIO IN VIDEOIN
ANT
1312
2134568791011
Partsand Functions
1.V-IN:Videoinput
2.A-IN: Audioinput
3.TV/AV:TV/AVSelect
4.M:Access/ExitMainM(menu)
5.VOL－：decrease sound
6.VOL＋：increase sound
7．CH－：select next lower channel
8．CH＋：select next higher channel
9．POWER indicator
10．Sensor Windows
11．POWER：power on/off
12．ANT：Antenna
13．AC CORD
HTN13R12
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8.Remote Controller Functions
CH+
CH-
VOL+
VOL-
MENU
23
56
1
4
789
0
RECALL
DISPLAY
TV/AVRATINGMUTE
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
1. POWER:Power on/off
2. Access/Exit Main M(MENU)
3. MUTE:Press keyto Activate/deactivate Mute Function
4. DISPLAY: Displayreceiving channel
5. TV/AV:TV/AVselect
6. VOL+/-: Increase or decrease sound
7. CH+/-:electnexthigherorlower channel
8. Recall: Returnto previous channel
9. Rating: V-chip set
10.CHANNELNUMBERBUTTON: Direct channel tuning (TV channel 02-69,CATV01-125)
Remote Controller Functions
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9.Program Diagram
Insert thepower plug into the powerline socket andinsert the antenna pluginto theantenna socket
on the rearpanel.Press down the power switch oftheTV set.The redindicatorlightgoes on.
Program preset
A1). Auto searching and storing program
Press MENUbutton on theremotecontroller then usethe ““keytoselect the bar “Auto
program”then press the “”to make sure. Ifyou wantto stop, press thekey “”.
2). Deleting channelnumber
Press MENU to callMenu. Then usethe ““keytoselectthe bar “ADD/DELETE”.then
press the “”to select ADDorDELETE.
BVolume tuning
Press VOLUME buttons VOL- to decrease andVOL+ toincreasethevolume.
Program Diagram
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10.Maintenance Service andTrouble shooting
l ⅠVertical and horizontal scan adjustment:
1. Input digital figure signal (5-circle figure);
2.Press GEO’key of the alignment remote controller to call out the scan parameter
menu as follows:
OSD DESCRIPTION RANGE REFERENCE
H.PHASE Horizontal phase 0-30 16-17
V.POSI Frame center 0-63 48
V.SIZE Frame range 0-127 80
NO SO POWER OFF Blank signal auto-off Yes/No Yes
V SC Fram s adjustment 0-31 8
VLIN Fram linear adjustment 0-31 10
Note: Use the p+’and P- to move the cursor to select acerta
in item; the
selected item is highlighted with red while other unselected remain green. Use
V+’and V- to change the parameter of the selected item.
1.Press the PICTURE’keyof the alignment remote controller againto save thechanged
parameter.
Ⅱ. Factory configuration settings:
Press PROD’key to enter the first page of the main menu of the factory
Configuration. There are 14 items under this menu. By pressing the PROD’
key again to enter the second page of this menu; there are 6 more items
are listed below:
OSD Description Range Reference
CTTST Test control 0-1 0
HFREQ Horizontal frequency 0 0-63 29
VSPUP Field simultaneous sensitivity 0=High,1=Low 0-1 0
GMODE Gray mode,0=100%,1=50% 0-1 0
V-LIN Fram linear(set in GEO) 0-31 10
RGDEF R.G output compensation 0-1 0
BGSLC B output compensation 0-3 0
AFG&G AFC gain 0=high 1=low 0-1 0
OSCNT OSD signal gain 0-3 2
CBYPS Set the intermediate frequency parameter of
Internal tint band-pass filter 0-1 0
CRB/W Test mode: 0=normal,1=dark field,2=bright field
3=cross figure signal 0-3 0
HBLKL Left blanking 0-7 0
HBLKR Right blanking 0-7 0
BSHLD ABL door limit 0-7 3-4
EMABL Emergency ABL remove switch:0=on,1=off 0-1 0
MDSTP Use brightness to release ABL,0=off,1=on 0-1 0
Maintenance Service and Trouble shooting
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FMLBL FM output accuracy 031 16
BRABL Brightness ABL switch 0=off,1=on 0-1 1
VDLBL Video demodulation output range 0=small,1=large 0-7 7
PASSW V-CHIP function 0=OFF,1=ON 0-1 1
1. Simulation preset
1) Input color bar signal;
2) Press MENU’key, set color, contrast, color saturation, tint at medium
Position;
3) Press
DP’key of thealignment remote controller to call outthe menu which contains
the following items:
OSD Description Range Reference
Sub brightness Preset brightness 0-127 60
Contrast Preset contrast 0-27 27
Tint Preset tint 0-77 35
Color Preset color saturation 0-27 14
4) When done, press PICTURE’to save the result.
Ⅲ. Adjust the white level:
1) Press GEO’of the alignment remote controller, set the item NO SD
POWER OFF YES’to NO’, keep the TV power on for over 30 minutes;
2) Degauss the CRT;
3) Input bright field signal through AV channel;
4) Connect white level test equipment to the set;
5) Press W/B’key of the alignment remote controller to call out the
Following menu:
OSD Description Range Reference
RD Red stimulate potential 0-127 64
GD Green stimulate potential 0-15 7
BD Blue stimulate potential 0-127 64
RB Red stop potential 0-255 Preset 127,adjust 127
GB Green stop potential 0-255 Preset 127,adjust 250
BB Blue stop potential 0-255 Preset 127,adjust 220
Set the above items to medium position and then press SCAN’, adjust
The raster potential regulator until the bright line on the screen
Turn down to a dark line, which is just visible. Adjust using the following
keys until the line turns white {1 (RB+)/2 (RB-) 3 (GB+)/4 (GB-)
5 (BB+)/6 (BB-)}, and then press SCAN’again, use the alignment remote
controller V+’,’V- ,’P+’,’P- key to adjust RD’,’GD’and BD’until the
whole screen turns white.
6) If a white level test equipment is available, adjust the above until
a proper effect is gained.
7) Press PICTURE’to save the results;
8) Press GEO’key, set back the NO SD POWER OFF’item to yes.
Maintenance Service and Trouble shooting
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Checkto see if
Fuse3 is normal
No lig
Abnormal
CheckVD501,C507,
V513,etc.
Checktoseeifthe
collectorvoltageofV5
52
is0V
CheckN101
ect
Checkto see
if,12v,
5v isnormal
Checkthe control
voltage ofV552 or
CPUpower
The failureof
horizontal unit or
N551 N552
Normal
Normal
Normal
Abnormal
Checktosee110V、180V
etc.voltageisnormal
Testtoseeallterminal
Resistanceofload
Isnormal
Check
powerunit
Checkto see if
rectifying tube
is normal
Change
rectifying tube
Checkthe
Loader
Abnormal
Normal
Abnormal
Normal Abnormal
Normal
Abnormal
Maintenance Service andTrouble shooting
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11. Circuit Diagram
Circuit Diagram
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