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HP-2999
COLOUR TELEVISION
Service Manual
MODEL :
HP-2999
THAILAND
Features
218 programs present
Multiple picture & volume modes
On/off timer
Child-lock Program scan
Slide curtain power on/off display
DVD component input
Haier Group
Manual code: M-AS-TH-HP-2999-9363 Edition: 2003.0222
0
Contents
1.Contents
1.Contents................................................................................. ..1
2. Product code illumination and series introduction................. .....2
3. Features.............................................................................. ..2
4 Specifications..........................................................................3
5 Safety Precaution....................................................................4
6 Warning and cautions..............................................................5
7 Net Dimension ......................................................................11
8 Parts and Functions...............................................................12
9 Remote controller Functions...................................................13
10 Program Diagram..................................................................14
11. Maintenance Service and Trouble Shooting.............................22
12. Circuit Diagram....................................................................27
13. Circuit Explanation...............................................................30
14. Adjustment..........................................................................40
15. Exploded View.....................................................................43
16. List of Parts.........................................................................45
17. Damageable Parts List..........................................................62
18. Information of Resistors and Capacitors.................................63
1
Product code illumination and series introduction
2. Product code illumination and series introduction
H P 29 99
Appearance serial
CMOS chip type
CRT catercorner 29 inch
HAIER
3.Features
1) 218 programs present
2) Multiple picture & volume modes
3) On/off timer
4) Child-lock Program scan
5) Slide curtain power on/off display
6) DVD component input
2
Specificatio
4. Specifications
NO. FUNCTION NO. FUNCTION
1 Main IC TDA9373 39 NO. of built-in speakers 5
2 CRT SF 40 Audio output power(W) 5W+5W+8W
3 Color system PAL SECAM 41 Total power input W 140
PIC
4 Audio system B/G 42 Voltage range V 150-250V
5 218 43 Power frequency Hz 50HZ
PARAMETER
NO.of channels
6 OSD language ENG/THA 44 Time of sleep timer(MINS)
7 Multi-picture modes YES 45 Net weight(KG) 42Kg
8 AV stereo YES 46 Gross weight(KG) 46Kg
9 Super woofer YES 47 Net dimension(MM) 810*530*600
10 Surrounding sound YES 48 Packaged dimension(MM)
11 Treble/bass boost YES 49 Quantity for 20' container
AUDIO
12 Left/right balancer YES 50 Quantity for 40' container
13 NICAM 51 Quantiry for 40' high container
14 Multi-audio modes YES 52 APPROVAL Acquired certificate
15 Tone adjuster YES 53 Suitable market
16 MTS/SAP
17 Auto-volume leveling Y
18 AV input Y
19 AV output Y
20 DVD terminal Y
JIC
21 S-video jack Y
22 Headphone socket
23 SCART socket
24 Digital curtain
25 Slow fading on & off Y
26 Semitransparent menu Y
27 Non-flshing channel changing Y
28 ZOOM Y
29 16:9 mode Y
SOFTWARE
30 Games
31 Calendar Y
32 Child-lock Y
33 Multi-functional lock
34 No-picture listening Y
35 Background light
36 Auto-timer on Y
37 CCD
38 V-CHIP
3
SAFETY PRECAUTIONS
5. SAFETY PRECAUTIONS
INPORTANT SAFETY NOTICE
These parts are identified by many electrical and mechanical parts in this chassis have
special safety-related characteristics.
It is essential that these special safety parts should be replaced with the same
components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or
other Hazards.
Do not modify the original design without permission of the manufacturer.
General Guidance
An Isolation Transformer should always be used during the servicing of a receiver whose
chassis is not isolated from the AC power line. Use a transformer of adequate power
rating as this protects the technician from accidents that might result in personal injury
caused by electrical shocks.
It will also protect the receiver and it's components from being damaged by accidental
shorts of the circuitry that might be inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with a specified
one.
When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the
resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Due to the high vacuum and large surface area of the picture tube, extreme care should
be taken in handling the Picture Tube. Do not lift the Picture Tube by its Neck.
X-RAY Radiation
Warning:
The source of X-RAY RADIATION in this TV receiver is the High Voltage Section and the
Picture Tube.
For continued X-RAY RADIATION protection, the replacement tube must be of the same
type as specified in the Replacement Parts List.
Before returning the receiver to the customer,
Always perform an AC leakage current check on the exposed metallic parts of the
cabinet, such as antennas, terminals, etc., to make sure that the set is safe to operate
without any danger of electrical shock.
4
Warning and Cautions
6 Warning and Cautions
1. When you clean the TV set, please pull 4. To prevent the TV set from firing and
out the power plug from AC outlet. Don't electric shock, don't
clean the cabinet and the screen with make the TV set rain
benzene, petrol and other chemicals. or moisture.
2. In order to prolong the using life of the 5. Don't open the back cover, otherwise it is
TV set, please place it on a ventilated possible to damage the components in the
place. TV set and harm you.
3. Don't place the 6. When the TV set isn't going to be used
T V set i n t h e for long time or it is in thunder and
sunshine or near lightening, please pull out the plug from AC
heat source. outlet and the antenna plug from the cover
of the TV set.
5
Warning and Cautions
Explanation on the display tube
Generally, it is not needed to clean the tube surface. However, if necessary, its surface
can be cleaned with a dry cotton cloth after cutting off the power. Don't use any cleanser.
If using hard cloth, the tube surface will be damaged.
CAUTION: Before servicing receivers covered by this service manual and its
supplements and addenda, read and follow the SAFETY PRECAUTIONS.
NOTE: If unforeseen circumstances create conflict between the following servicing
precautions and any of the safety precautions, always follow the safety precautions.
Remember : Safety First.
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power source before:
a. Removing or reinstalling any component, circuit board module or any other
assembly of the receiver.
b. Disconnecting or reconnecting any receiver electrical plug or other electrical
connection.
c. Connecting a test substitute in parallel with an electrolytic capacitor in the
receiver.
CAUTION: A wrong substitution part or incorrect installation polarity of
electrolytic capacitors may result in an explosion hazard.
d. Discharging the picture tube anode.
2. Test high voltage only by measuring it with an appropriate high voltage meter or other
voltage-measuring device (DVM, FETVOM, etc.) equipped with a suitable high
voltage probe. Do not test high voltage by "drawing an arc".
3. Discharge the picture tube anode only by (a) first connecting one end of an insulated
clip lead to the degaussing or kine aquadag grounding system shield at the point
where the picture tube socket ground lead is connected, and then (b) touch the other
end of the insulated clip lead to the picture tube anode button, using an insulating
handle to avoid personal contact with high voltage.
4. Do not spray chemicals on or near this receiver or any of its assemblies.
5. Unless specified otherwise in this service manual, clean electrical contacts only by
applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick
or comparable nonabrasive applicator; 10% (by volume) Acetone and 90% (by
volume) isopropyl alcohol (90%-99% strength)
CAUTION: This is a flammable mixture.
Unless specified otherwise in this service manual, lubrication of contacts is not
required.
6. Do not defeat any plug / socket B+ voltage interlocks with which receivers covered
6
Warning and Cautions
by this service manual might be equipped.
7. Do not apply AC power to this instrument and/or any of its electrical assemblies
unless all solid-state device heat sinks are correctly installed.
8. Always connect the test receiver ground lead to the receiver chassis ground before
connecting the test receiver positive lead.
Always remove the test receiver ground lead last.
9. Use with this receiver only the test fixtures specified in this service manual.
CAUTION: Do not connect the test fixture ground strap to any heat sink in this
receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity.
Such components are usually called Electrostatically Sensitive (ES) Devices. Examples
of typical ES devices are integrated circuits and some field effect transistors and
semiconductor "chip" components. The following techniques should be used to help
reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-
equipped assembly, drain off any electrostatic charge on your body by touching a
known earth ground. Alternatively, obtain and wear a commercially available
discharging wrist strap device, which should be removed to prevent potential shock
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the
assembly on a conductive surface such as aluminum foil, to prevent electrostatic
charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static type folder removal device. Some solder removal devices not
classified as "anti-static" can generate electrical charges sufficient to damage ES
devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges
sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until
immediately before you are ready to install it. (Most replacement ES devices are
packaged with leads electrically shorted together by conductive foam, aluminum foil
or comparable conductive material).
7. Immediately before removing the protective material from the leads of a
replacement ES device, touch the protective material to the chassis or circuit
assembly into which the device will be installed.
CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other
safety precautions.
7
Warning and Cautions
8. Minimize bodily motions when handling unpackaged replacement ES devices.
(Otherwise even some normally harmless motions such as mutual brushing of your
clothes' fabric or lifting of your foot from a carpeted floor might generate static
electricity sufficient to damage an ES device.)
General Soldering Guidelines
1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape
that will maintain tip temperature within the range of 500 oF to 600 oF.
2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40
parts lead.
3. Keep the soldering iron tip clean and well tinned.
4. Thoroughly clean the surfaces to be soldered. Use a mall wire bristle (0.5 inch, or
1.25cm) brush with a metal handle. Do not use freon-propelled spay-on cleaners.
5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.(500 o F to 600o F)
b. Heating the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-type solder removal
device with solder braid.
CAUTION: Work quickly to avoid overheating the circuit board printed foil.
6. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.(500 o F to 600o F )
b. First, hold the soldering iron tip and solder the strand against the component lead
until the solder melts.
c. Quickly move the soldering iron tip to the junction of the component lead and the
printed circuit foil, and hold it there only until the solder flows onto and around
both the component lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit board printed foil.
d. Closely inspect the solder area and remove any excess or splashed solder with a
small wire-bristle brush.
Remove /Replacement
Some chassis circuit boards have slotted holes (oblong) through which the IC leads are
inserted and then bent flat against the circuit foil. When holes are of slotted type, the
following technique should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique as outlined .
Removal
Desolder and straighten each IC lead in one operation by gently prying up on the lead
with the soldering iron tip as the solder melts.
8
Warning and Cautions
Draw away the melted solder with an anti-static suction-type solder removal device (or
with solder braid) before removing the IC.
Replacement
Carefully insert the replacement IC in the circuit board.
Carefully bend each IC lead against the circuit foil pad and solder it.
Clean the soldered areas with a small wire-bristle brush.(It is not necessary to reapply
acrylic coating to the areas).
"Small-Signal" Discrete Transistor
Removal/Replacement
Remove the defective transistor by clipping its leads as close as possible to the
component body.
Bend into a "U" shape the end of each of three leads remaining on the circuit board.
Bend into a "U" shape the replacement transistor leads.
Connect the replacement transistor leads to the corresponding leads extending from the
circuit board and crimp the "U" with long nose pliers to insure metal to metal contact then
solder each connection.
Power Output, Transistor Device
Removal/Replacement
Heat and remove all solder from around the transistor leads.
Remove the heat sink mounting screw (if so equipped).
Carefully remove the transistor from the heat sink of the circuit board.
Insert new transistor in the circuit board.
Solder each transistor lead, and clip off excess lead.
Replace heat sink.
Diode Removal/Replacement
Remove defective diode by clipping its leads as close as possible to diode body.
Bend the two remaining leads perpendicularly to the circuit board.
Observing diode polarity, wrap each lead of the new diode round the corresponding lead
on the circuit board.
Securely crimp each connection and solder it.
Inspect (on the circuit board copper side) the solder joints of the two "original" leads. If
they are not shiny, reheat them and if necessary, apply additional solder.
Fuse and Conventional Resistor
Removal/Replacement
9
Warning and Cautions
1. Clip each fuse or resistor lead at top of the circuit board hollow stake.
2. Securely crimp the leads of replacement component around notch at stake top.
3. Solder the connections
CAUTION: Maintain original spacing between the replaced component and adjacent
components and the circuit board to prevent excessive component temperatures.
Circuit Board Foil Repair
Excessive heat applied to the copper foil of any printed circuit board will weaken the
adhesive that bonds foil to the circuit board causing the foil to separate from or "lift-off"
the board. The following guidelines and procedures should be followed whenever this
condition is encountered.
At IC Connections
To repair a defective copper pattern at IC connections use the following procedure to
install a jumper wire on the copper pattern side of the circuit board.(Use this technique
only on IC connections).
1. Carefully remove the damaged copper pattern with a sharp knife. (Remove only as
much copper as absolutely necessary).
2. Carefully scratch away the solder resist and acrylic coating (if used) from the end of
the remaining copper pattern.
3. Bend a small "U" in one end of a small gauge jumper wire and carefully crimp it
around the IC pin. Solder the IC connection.
4. Route the jumper wire along the path of the out-away copper pattern and let it
overlap the previously scraped end of the good copper pattern. Solder the
overlapped area and clip off any excess jumper wire.
At other connections
Use the following technique to repair the defective copper pattern at connections other
than IC Pins. This technique involves the installation of a jumper wire on the component
side of the circuit board.
1. Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to insure that a hazardous condition will not exist
if the jumper wire opens.
2. Trace along the copper pattern from both sides of the pattern break and locate the
nearest component that is directly connected to the affected copper pattern.
3. Connect insulated 20-gauge jumper wire from the lead of the nearest component on
one side of the pattern break to the lead of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so that it does not touch
components or sharp edges.
10
Net Dimension
7 Net Dimension
790mm 525mm
590mm
11
Figure 1
Parts and Funcitions
8 Parts and Funcitions
Front and side panel of the TV set
Remote sensor:let The remote controller aim here the set can receive remote
control signal.
Power switch:Press the button to turn on the TV set . press the button again to turn
off the TV set.
Power indicator: the indicator lights in standby status ,the indicator lights in sleep
status . The indicator glints when you use remote controller .
Menu button
Program up/down button
Volume up/down button
TV/AV
2.Rear Panel And Side Board
S-VHS input
VIDEO input/output
DVD component input 11
11 Antenna input
Audio input/output
When using S terminal, please pull out video 1 input terminal
Figure 2
12
Remote Controller Functions
9. Remote Controller Functions
MARK FUNCTION DESCRIPTION
Program scan
Standby
SWAP
Mute
1 2 3
TV/AV TV/VIDEO SELECTION
-VOL+ VOLUME CONTROL
-CH+ CHANNEL NUMBER UP/DOWN
PICTURE MENU
SOUND SOUND MENU
P.P
PICTURE SWAP
TIME TIME MENU
FUNC TION FUNCTION MENU
0-9 ONE DIGIT SELECTION
-/--
MENU MENU DISPLAY
EXIT MENU DISPLAY
STEREO/NOMO SOUND SELECTION
PICTURE MODE SELECTION
SOUND MODE SELECTION
TUNE MENU SELECTION
CHILDLOCK
Figure 3
13
Program Diagram
10.ProgramDiagram
OPERATION MENU
OCT
TUNE
COLOR SYSTEM AUTO
SOUND SYSTEM B/G
BAND VHFL
SKIP OFF
PROG NO 19
SEARCH
FINE TUNE
AUTO SEARCH
6.Selecting color system
Usually this should be set in the Auto position. However if the colours displayed on
the screen are incorrect you can manually select the correct colour system. When
you have finished remember to turn it back to auto again so that other programs
will still work correctly. Use the CH+/- buttons to select COLOR SYSTEM then the
VOL+/- buttons to select a color system you need.. Press the EXIT button to save
the setting.
14
Program Diagram
O P E R A T IO N M E N U
7.
Program skip
p ure es
The Program ski feat enabl you t ski hi program s t you do notw i t
o p/ de hat sh o
be di ayed w hen usi t C H +/ but ons.These channel w i lst l be di ayed by
spl ng he - t s l il spl
di l usi t channelnum ber but ons on t rem ot cont .To ski ,press t
rect y ng he t he e rol p he
C H +/ but ons t sel t SK IP m enu,Press t V O L+/ but ons t t t ski
- t o ect he he - t o une he p
feat on/ Press t E X IT but on t save t set i
ure off. he t o he t ng.
8.Program N um ber
T he program num ber is the rem ote controlchannelnum ber.Y ou can change the
program num ber to see w hich channels are stored w ithoutexiting this m ain
m enu.Press the C H + /- button to selectPR O G N O ,Press the V O L + /- to change
the program num ber thatyou are adjusting.
9.B and S w itching (note:T his is a new item )
If you already know w hatband the channelis on,tuning can speed up by
selecting the correctband before going into the search m enu.T his feature
should only be used if you understand the channels in your localarea.
Picture A djustm ents OCT
PIC TU R E
C O N T R A ST 89
1 C ontrast(A dds depth to the picture) B R IG H TN E SS 66
Press the C H + /- buttons to selectC ontrast,then CO LO U R 50
press the V O L + /- buttons to adjustthe C ontrastlevel. SH A R PN ESS 50
TILT 08
2 B rightness (A dds sparkle and shine to the picture) IIIIIIIIIIIIIIIIIIIIIIIII.....
.....
Press the C H + /- buttons to selectB rightness,then
press the V O L + /- buttons to adjustthe brightness
level.
3 C olour (A dds colour depth)
Press the C H + /- buttons to selectC olour,then press the V O L + /- buttons to
adjustthe C olour level.
4 S harpness (A dds fine detail)
Press the C H + /- buttons to selectS harpness,then press the V O L + /- buttons to
adjustthe Sharpness level.
N ote:D o notturn the sharpness up to high if the reception is poor or has lots of
noise as itw illenhance the fine grain details.
15
O P E R A T IO N M E N U
Sound A djustm ents
Press t m enu but on t i or press t Sound but on on t rem ot cont ,
he t w ce he t he e rol
t di ay t Sound set i m enu.
o spl he t ng
1 V olum e (A djustthe loudness level)
OCT Press the C H + /- buttons to selectV olum e,
then press the V O L +/- buttons to adjustthe
SO U N D volum e level.
V O LU M E 50
B A SS 50
TR EB L E 50 2 B ass (A dd low frequency depth)
BA LA N CE 0 Press the C H + /- buttons to selectB ass,then
SURROUND OFF
W O O FE R ON press the V O L + /- buttons to adjustthe
W O O FE R V O L 50 volum e level.
IIIIIIIIIIIIIIIIIIIIIIIII.....
.....
3 T reble (A dd high frequency clarity)
Press the C H + /- buttons to selectT reble,then
press the V O L + /- buttons to adjustthe treble
level.
4 B alance (S elects betw een the leftand right
stereo channellevels)
Press the C H + /- buttons to selectB alance,
then press the V O L +/- buttons to adjustthe
balance level.
5 S urround (E nhances the stereo effectby
m aking the sound appear w ider)
Press the C H + /- buttons to select
SU R R O U N D ,then press the V O L + /- buttons
to turn this feature on/off.
6. oofer on/off
W
Press the CH+/- buttons to select
SURROUND, then pre ss the VOL+/-
buttons to turn this woofer on/off.
7.Woofer volume ad justment
Press the CH+/- buttons to select
WOOFER VOL, then press the VOL+/-
buttons to adjust woofer volume.
16
O P E R A T IO N M E N U
Functi M enu
on OCT
1. ackground (If t si
B he gnali very poor or t
s here i no
s FU N C T I N
O
inputsi he ct l
gnalt pi ure w i lm ut t bl
e o ack) BA CK G RO U N D ON
B L A C K ST R E TC H ON
Press the C H + /- buttons to selectB ackground, N O ISE R ED U C E O FF
then press the V O L +/- buttons to turn this feature FA D E ON
C H I D LO C K
L O FF
on/off. AV L O FF
SO FT C H A N G E O FF
2. oise R educe (P icture N oise & G rain reduction circuit.)
N
Press the C H + /- buttons to selectN oise R educe,then press the V O L + /-
buttons to turn this feature on/off.
4. hild L ock (E nables the T V frontcontrolbuttons to be locked)
C
Press the C H + /- buttons to selectC hild L ock,then press the V O L + /-
buttons to turn this feature on/off.
5. V L (A utom atic V olum e L im itcontrolreduces effectof large volum e
A
changes such as w hen the ads com e on) P ress the C H +/- buttons to select
A V L ,then press the V O L + /- buttons to turn this feature on/off.
6.B lack Stretch (A dds D eeper B lacks and increases the contrastrange)
Press the C H + /- buttons to selectB lack S tretch,then press the V O L + /- buttons
to turn this feature on/off.
C alender M enu
Ent C al he P- o ect ,
er ender m enu,press t P+/ t sel year m ont dat press t V O L+/
h, e, he -
t change cal
o ender setup.
SO L A R 2008 1 20
L U N A R 2002 12 18
S M T W T F S
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
17
M U L T I F U N C T IO N T IM E R
M ul Functi T i er
ti on m OCT
T he T V sethas in builta com prehensive tim er TIM E
thathas F ive basic functions C LO C K - :-
--
O N TIM E -- -
:-
1. lock
C
ON- OG
PR 1
2. n tim er so thatthe T V setcan be program m ed
O O FF TI E
M -:
- --
to turn on ata certain tim e SLEE P TI E R
M -- -
:-
3. ff tim er thatallow the T V setto turn off ata
O R EM IN D T I E
M -:
- --
presettim e R EM IN D PR O G 1
COUNT 00001:22
4. leep tim er to allow the T V setto turn off after
S
10 ~ 180 m inutes
5. rogram rem ind tim er,thatdisplays an on-
P
screen rem inder prom pt,w hen a program on a
differentchannelis due to start.
N ote:T he clock w illonly w ork if the T V setif leftturned on or in standby.
W hen the setis disconnectfrom the pow er supply or is turned off by the
m ain pow er sw itch on the frontpanel,the clock looses pow er and w ill
need to be resetw hen the pow er is reconnected.
18
M U L T I F U N C T IO N T IM E R
t adj t am ountof t m e before t TV setw i laut at cal y
o ust he i he l om i l
t off.E ach t m e t V O L + but on i pressed t sl t m e w i li
urn i he t s he eep i l ncreases by 10
m i es.T he m axi um sl t m e i 180 m i es.
nut m eep i s nut
5.R em i Ti e
nd m
Press t C H +/ but ons t sel R E M IN D TIM E ,t press t V O L+/ but ons t
he - t o ect hen he - t o
adj t H ours
ust he
Press t C H - B ut on t sel m i es and t V O L +/ t adj t m i es.
he t o ect nut he - o ust he nut
Press t C H - B ut on t sel R EM IN D -PR O G and t V O L +/ t sel t T V
he t o ect he - o ect he
channelt t TV setw i laut at cal y rem i you t t t w hi e w at ng
hat he l om i l nd o urn o l chi
anot channel
her .
6. ount
C
The funct on i used for di ay t TV setused for al t m e.
i s spl he li
OCT
Program N um ber E xchange EX C H A N G E
T his feature enables T V program s thatm ay PR O G R A M 1 1
be on a w rong T V channelnum ber to be PR O G R A M 2 1
EX C H A N G E
sw apped/exchanged.T his feature is very
usefulw hen A utom atic Search T uning has
been used,to reallocate the found program s
to the correctchannelnum bers.
Press the M enu button 6 tim es untilthe exchange m enu is displayed.
Press the C H + /- untilprogram 1 is selected.U se the V O L +/- buttons to
selectthe channelnum ber to be sw apped.(I.E if you w ish to exchange
C hannel2 and 4 PR O G R A M 1 should = 2)
Press the C H + /- untilprogram 2 is selected.U se the V O L + /- buttons to
selectthe channelnum ber to be sw apped.(I.E if you w ish to exchange
C hannel2 A nd 4 P R O G R A M 2 should = 4)
Press the C H + /- untilE X C H A N G E is selected.Press the V O L + button to
enable the exchange.
19
G E N E R A L O PE R A T IO N
1. hannelC hangi (218 possi e channel
C ng bl s)
U se ei her t C H +/ but ons on t rem ot or t frontof t T V sett change t
t he - t he e he he o he
channel s.
Or
rect y er he t he c
D i l ent t channelnum ber w i h t num eri keypad on t rem ot cont . he e rol
To sel channelnum bers from 10 ~ 99 press [-/ but on and ent t t o di t
ect --] t er he w gi
channelnum ber To sel channelnum bers from 100 ~ 218 press [-/ but on
. ect --] t
t i and ent t 3 di tchannelnum ber
w ce er he gi .
2. um e A dj m ent
Vol ust
Press t V O L +/ but ons on t rem ot or t frontof t TV sett adj t
he - t he e he he o ust he
um evel s he
vol e l .T he range i 0~99.W hen t Vol e but ons are pressed t vol e
um t he um
l eveli di ayed aut at cal y on t TV screen.
s spl om i l he
3. andby
St
ng he e rol he
U si t rem ot cont t T V setcan be pl aced i o st
nt andby m ode.St andby
m ode m ustbe used for t Ti er feat
he m o e
ures t operat correct y.A red st
l andby l ght
i
l ow he
w i lgl on t TV frontpanelw hen t TV seti plhe s aced i o st
nt andby.To t urn
t TV setback on agai press st
he n t he
andby but on on t rem ot cont agai Itw i l
e rol n. l
t a few seconds before a pi ure w i lbe di ayed.
ake ct l spl
4. ut
M e
Press t m ut but on on t rem ot cont t m ut t TV set sound.Pressi
he e t he e rol o e he s ng
t M ut agai w i lt t sound back on agai
he e n l urn he n.
5.
PresetPi ure M odes
ct
O ur engi neers have desi n
gned i 5 com m onl used pi ure set i t al ow fast
y ct t ngs o l
pi ure l
ct ect on ng
evelsel i dependi on w hatt of T V program i show i E ach
ype s ng.
s ect n urn ng he t
m ode i sel ed i t by pressi t "P ST D " but on on t rem ot cont . he e rol
The 5 m odes are
L i en- Thi i a new feat t bl
st s s ure hat acks outt TV screen w hen l st ng t
he i eni o
m usi onl channel
c y s
Soft- D esi gned for ni t m e l l ghtvi i
ght i ow i ew ng
St andard - D esi gned for room s t have good al round l ght ng
hat l i i
ch
R i - D esi t gh
gned for room s w i h hi am bi l ght ng such as dayt m e sport
ent i i i .
U ser- A spare set i t can be adj ed t personalt es
t ng hat ust o ast
ng he ust spl
U si t PIC T U R E adj m entdi ay m enu al 5 m odes can i
l ndependent y
l
adj ed.
ust
20
G E N E R A L O PE R A T IO N
6. resetSound M odes
P
O ur engineers have designed in 4 com m only used sound m odes to allow the
bestpossible sound to be selected quickly.E ach m ode is selected in turn by
pressing the "S ST D " button on the rem ote control.
T he 4 m odes are
Speech- D esigned to reduce the bass and treble w hich enhances the voice for
N ew s program s
T heatre- E nables extra bass and treble to enhance the m ovie experience
M usic- A djustthe sound to bestsuitm usic program s
U ser -A spare setting thatcan be adjustto personaltastes
U si t SO U N D adj m entdi ay m enu al 4 m odes can i
ng he ust spl l ndependent y adj ed
l ust
7. ecall(O n-screen D isplay)
R
T he C allbutton on the rem ote controlallow s the onscreen m enu to be
displayed,show ing the channelnum bers and colour system .
8. rogram Scan (A utom atically increm ents/scans the channels and displays
P
each channelfor a shorttim e)T he S C A N button on the rem ote controlturns
on/off the scan feature.
9. oom (C hanges the picture size form at)
Z
E ach tim e the Z O O M button is pressed the picture size w illchange.T here
are the follow ing size options.
N orm al- U sed for standard 4:3 picture program s
E nlargem ent- Z oom s the picture in to m agnify sm aller im ages.
10.Sw ap (Toggles betw een the lastchannelview and the currentchannel)
E ach tim e the SW A P button is pressed the lastchannelview is displayed.
11.A V inputselection
E ach tim e the T V /A V button is press the inputs selection w illcycle betw een
T V - A V 1- A V 2- S V H S - D V D - T V .
N otes:I. V 1 & SV H S share the sam e A V 1 audio inputs.
A
. A V m odes the R E C A L L status display w illonly display the colour
In
system .
12. ock
L
Press the L O C K button to selectC hildlock on/off.
21
Maintenance Service and Trouble Shooting
11. Maintenance Service and Trouble Shooting
a. TROUBLESHOOTING PROCESS
Grating off
Check +B
Abnormal Normal
Disconnect R214 to Check lamp filament,
check main voltage release and grating voltages
Normal
Abnormal None
Check TDA9373 Check R415, R505 Check CRT
voltage and R526 cathode voltage
Check V403, T401 Check N201 for
Check for short between
R, G and B
output voltage and ground
signal output
Check V402
Check for 300V voltage
Check TDA6107Q
Check pin 33 of
and peripheral circuit
N201 for output
Check N801 for
peripheral circuit
22
Maintenance Service and Trouble Shooting
Horizontal bright line
Check pin 21 and 22 of N201 for curve output
None Yes
Check R228 and C227 Check 16V and 47V
voltage
Abnormal Normal
Check N201 Check R413 and R408 Check N301 and
peripheral circuit
Check T444
Disabled remote control
Check receiver voltage
Abnormal Normal
Check pin 61 of Check receiver
N201 voltage
Check RR230 and C234
Check all pins of V801for voltage
Check N201
Check VD806 for
voltage output
23
Maintenance Service and Trouble Shooting
Pincushion distortion
Enter factory mode and adjust
5EWP to see if picture changes
None Yes
Check pin 20 of N201for voltage Check
and ground resistance V401 and DZ401
Check pin 12 N301 for voltage
Check C416
and ground resistance
Check and replace
Check and replace
VD404A andVD404B
N201 and N301
24
Maintenance Service and Trouble Shooting
TV program sound off
Check pin 7 of N201 for Yes Press mute button, or check
noise suppression and replace N201
No
Check N201 44 for
sound signal output
None Yes
Check and replace N201 Check N701 3 5
for sound signal output
Yes None
Check N701 15 18 Check V213, R243,
for sound signal output C246 and C706
None Yes
Check and
replace N701
Check N601 and peripheral
circuit components
25
Maintenance Service and Trouble Shooting
b. Troubleshooting guide
To assist in location possible faults use help guide below.
BREAKDOWN PHENOMENON
CHECKING
PICTURE SOUND
The aerial direction and connection
Picture with snow Noise
This is called ghosting which can be minimized with
an outside aerial, and good quality cable and
terminations. Altering the aerial direction can also
Double or Triple Image minimize this effect.
Normal
Electrical interference which can be caused by cars,
motorbikes etc, Fluorescent lamps and dirty
insulators on overhead power cables.
Disturb Noise
Volume Sound mute
Normal No sound
Ensure that the power supply is connected to
the TV set and turned on. Also ensure that the
TV set is not in "Listen Mode" or that the
brightness and contrast are not turned down.
No Picture No sound
Adjust colour control
No colour Normal volume
Adjust channel again
Scramble Normal or Weak Volume
Colour Purity fault which can be caused by moving the
TV set, placing magnets near the TV screen or turning
on/off house hold appliances such as vacuum cleaners
near the TV set. Turn the TV off with the mains power
Colour Spot Normal volume switch for 15 minutes. When the power is turn on again
the TV set will automatically degauss the picture. In
server cases leave the TV set turned off over night.
Note:
1.If the fault can not be repaired using the above guide consult with your local authorized service
center.
2.The TV set must only be repaired by a qualified registered service person. Never attempt to
remove the back cover as the TV set has dangerous voltages in side that may cause a fatally or fire.
3. The cabinet may produce the occasional "snapping sound" This is normal and caused by the
materials in the cabinet expanding with room temperature changes.
26
Circuit Diagram
12. Circuit Diagram
a. Pane hint picture
b. TU101
SF101
sound surface N610
Speaker1
TUNER N701
filter Sound processing and Sound
amplifying amplifying
Dark current Speaker2
SCL SDL
check-up
N201 MUTE
RM201 N501 R
remote Microprocessor and signal processor
Video frequency G CRT
control amplifying
B
SCL SDL
E2PROM
The second SIF filter
N301
field output
V-DY
Assistant +5.1V The second SIF WAVE TRAP
+8V power supply
V403 H-DY
line output
V-SYNC
tube
H-SYNC
+130V
Switch +46V
transformer +16V T444 +16.5V
+15V
FBT +200V
pillow figure
FOCUS
emendation
SCREEN
Figure 4
27
Circuit Diagram
Circuit Diagram
V+ V- P+ P- MENU TV/AV
1 TJC3-2Y AV1-VIN AV1-AL AV1-AR
CNB02 CNS01 RT01 CT01
RT02 RT03 75 102
100 75 Y C
CNS02
SDA SCL
RB03 RB06 RB08 RB07 RB09
1.2K 1K 620 470 CNB01
1.8K CNT01
TJC3-2Y 2 N702
HEF4053 TJC3-10A
A6-5V
A6-5V
R208 A6-5V N202