Daewoo DTQ-14V4, DTQ-15U5, DTQ-14U1, DTQ-20P2, DTQ-20V1 Service Manual
...
S/M No.:TCN001MEF0
Service Manual
Color Television
CHASSIS : CN-001M
Model
DTQ-14P2/P3FCM
DTQ-14P2/V1FCWM/P2SCM
DTQ-14V1/V5FCM/V1/V4SCM
DTQ-14V5FCNM/15U5SCM
DTQ-14V6FCBM/FCPM/FBBM/FPPM
DTQ-14J4FCGM/FCCM
DTQ-20V1/V4/V5FCM
DTQ-20V1/V4SCM
DTQ-20P2/P3FCM/P2SCM
U.S.A
CANADA
(AC120V)
DTQ-14V6NBM/NPM
DTQ-14V1/V3/V5FSM
DTQ-14V1/V3/V4/V5/V8/V9SSM
DTQ-14U1FSM/SSM/20U1FSM/SSM
DTQ-20P2SSM/15U5FSM
DTQ-20V1/V3/V4FSM
DTQ-20V1/V3/V4/V8/V9SSM
DTQ-14V1/V4/V5FSPM
DTQ-14V1/V4/V5/U1SSPM
DTQ-14V6NBPM/NPPM
DTQ-20V1/V4FSPM
DTQ-20V1/V3/V4/U1SSPM
DTQ-15U5SSPM
DTQ-14V1/V4SSFM
DTQ-20V1/V4SSFM
DTQ-14V4/20V4FCFM
Chile, Peru, Philippines
Korea, USA, Japen(AC90~250V)
Middle America
(AC 110V)
(AC220V)
Dominica
(AC60~180)
DAEWOO ELECTRONICS CO., LTD
: //svc.dwe.co.kr
http
May. 2002
TABLE OF CONTENTS
SAFETY PRECAUTIONS.................................................................................................................... 2
PRODUCT SAFTY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCS......................................... 2
PRODUCT SAFTY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS............................. 3
SPECIFICATIONS ............................................................................................................................... 5
BLOCK DIAGRAM .............................................................................................................................. 6
ALIGNMENT INSTRUCTIONS............................................................................................................ 7
SERVICE MODE ADJUSTMENTS.................................................................................................................. 7
ASSEMBLY ADJUSTMENTS.......................................................................................................................... 8
PARENTAL CONTROL PASSWORD SETTINGS...........................................................................................12
VOLTAGE CHART ..............................................................................................................................13
WAVEFORMS......................................................................................................................................16
SCHEMATIC DIAGRAM......................................................................................................................19
EXPLODED VIEW ...............................................................................................................................20
ELECTRICAL PARTS LIST.................................................................................................................28
APPENDIX (Appendix is provide only by internet [http://svc.dwe.co.kr])
IC DESCRIPTION ................................................................................................................................ 1
TROUBLE SHOOTING CHARTS........................................................................................................ 8
NO POWER..................................................................................................................................................... 8
NO PICTURE................................................................................................................................................... 9
NO SOUND...................................................................................................................................................... 10
CH DON’T MEMORY or CH SKIP ................................................................................................................. 11
NO COLOR...................................................................................................................................................... 12
NO VERTICAL DEFLECTION......................................................................................................................... 12
NO ON-SCREEN DISPLY ............................................................................................................................... 13
REMOTE CONTROL DOES NOT OPERATE................................................................................................. 13
1
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS
CAUTION
NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFACTURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID
THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULTING PROPERTY DAMAGE OR USER INJURY.
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND
SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF
POTENTIAL HAZARDS AND INJURY TO THE USER.
WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTECTION
FROM A.C. LINE SHOCK.
: DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY.
SAFETY CHECKS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRECTED, A CHECK
SHOULD BE MADE OF THE FOLLOWING:
SUBJECT:FIRE & SHOCK HAZARD
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAY AS
TO AVOID POSSIBILITY OF ADJACENT COMPONENT SHORTS. THIS IS
ESPECIALLY IMPORTANT ON THOSE MODULES WHICH ARE TRANSPORTED TO AND FROM THE REPAIR SHOP.
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES SUCH AS
INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN RELIEFS, POWER
SUPPLY CORDS, AND OTHER HARDWARE HAVE BEEN REINSTALLED PER
ORIGINAL DESIGN. BE SURE, THAT THE SAFETY PURPOSE OF THE
POLARIZED LINE PLUG HAS NOT BEEN DEFEATED.
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE COLD SOLDER JOINTS, SOLDER SPLASHES OF SHARP SOLDER POINTS. BE CERTAIN TO REMOVE ALL LOOSE FOREIGN PARTICLES.
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR DETERIORATION TO
PARTS AND COMPONENTS, FOR FRAYED LEADS, DAMAGED INSULATION
(INCLUDING A.C. CORD), AND REPLACE IF NECESSARY. FOLLOW ORIGINAL LAYOUT, LEAD LENGTH AND DRESS.
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECEIVING TUBE OR A
RESISTOR RATED AT 1 WATT OR MORE. LEAD TENSION AROUND PROTRUDING METAL SURFACES MUST BE AVOIDED.
6. ALL CRITICAL COMPONENTS SUCH AS FUSES, FLAMEPROOF RESISTOR,
CAPACITORS, ETC. MUST BE REPLACED WITH EXACT FACTORY TYPES.
DO NOT USE REPLACEMENT COMPONENTS OTHER THAN THOSE SPECIFIED OR MAKE UNRECOMMENDED CIRCUIT MODIFICATIONS.
7. AFTER RE-ASSEMBLY OF THE STE ALWAYS PERFORM AN A.C. LEAKAGE
TEST ON ALL EXPOSED METALLIC PARTS OF THE CABINET. (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS, HANDLE AND SCREWS) TO
BE SURE THE SET IS SAFE TO OPERATE WITHOUT DANGER OF ELECTRICAL SHOCK. DO NOT USE A LINE ISOLATION TRANSFORMER DURING
THIS TEST USE AN A.C. VOLTMETER, HAVING 5000 OHMS PER VOLT OR
MORE SENSITIVITY, IN THE FOLLOWING MANNER : CONNECT A 1500 OHM
10 WATT RESISTOR, PARALLELED BY A .15 MFD. 150V A.C. TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER POPE, CONDUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME.
MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500 OHM
RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG AND
REPEAT A.C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED METALLIC
PART. VOLTAGE MEASURED MUST NOT EXCEED .75 VOLTS R.M.S THIS
CORRESPONDS TO 0.5 MILLIAMP A.C. NAY VALUE EXCEEDING THIS LIMIT
CONSTITUTES A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED
IMMEDIATELY.
A.C. VOLTMETER
0.15 uF
GOOD EARTH GROUND
SUCH AS THE WATER
PIPE, CONDUIT, ETC.
1500 OHM
10WATT
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
SUBJECT : GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL,
WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED
TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE”
THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL
TRIANGLE IS INTENDED TO ALERT THE SERVICE
PERSONNEL TO THE PRESENCE OF IMPORTANT
SAFETY INFORMATION ON SERVICE LITERATURE.
SUBJECT : X-RADIATION
1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENTIAL
SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PICTURE TUBE.
HOWEVER, THIS TUBE DOES NOT EMIT X-RAYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE PROPER VALUE IS
GIVEN IN THE APPLICABLE SCHEMATIC. OPERATION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH VOLTAGE
SUPPLY AND UNDER CERTAIN CIRCUMSTANCES, AMY PRODUCE RADIATION IN EXCESS OF DESIRABLE LEVELS.
2. ONLY FACTORY SPECIFIED C.R.T ANODE CONNECTORS MUST BE USED.
DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN COLOR SETS.
ALWAYS RE-INSTALL THEM.
3. IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRATION OF THE
METER SHOULD BE CHECKED PERIODICALLY AGAINST A REFERENCE
STANDARD. SUCH AS THE ONE AVAILABLE AT YOUR DISTRIBUTOR.
4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY THERE
IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY TIME A COLOR
CHASSIS IS SERVICED, THE BRIGHTNESS SHOULD BE RUN UP AND
DOWN WHILE MONITORING THE HIGH VOLTAGE WITH A METER TO BE
CERTAIN THAT THE HIGH VOLTAGE DOES NOT EXCEED THE SPECIFIED
VALUE AND THAT IT IS REGULATING CORRECTLY. WE SUGGEST THAT
YOU AND YOUR SERVICE ORGANIZATION REVIEW TEST PROCEDURES
SO THAT VOLTAGE REGULATION IS ALWAYS CHECKED AS A STANDARD
SERVICING PROCEDURE, AND THAT THE HIGH VOLTAGE READING BE
RECORDED ON EACH CUSTOMER’S INVOICE.
5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN A
PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE, AVOID
BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND THE HIGH
VOLTAGE SUPPLY. DO NOT OPERATE THE PRODUCT LONGER THAN IS
NECESSARY TO LOCATE THE CAUSE OF EXCESSIVE VOLTAGE.
6. REFER TO HV, B+ AND SHUTDOWN ADJUSTMENT PROCEDURES
DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS (WHERE
USED).
SUBJECT : IMPLOSION
1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTEGRA
IMPLOSION PROTECTION SYSTEM. BUT CARE SHOULD BE TAKEN TO
AVOID DAMAGE DURING INSTALLATION. AVOID SCRATCHING THE
TUBE. OF SCRATCHED REPLACE IT.
2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES.
SUBJECT : TIPS ON PROPER INSTALLATION
1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBYHOLE OR
CLOSELY FITTING SHELF SPACE, OVER OR CLOSE TO HEAT DUCT, OR IN
THE PATH OF HEATED AIR FLOW.
2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO
INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIATORS
WHERE STEAM LEAKAGE IS A FACTOR, ETC.
3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT REAR VENTING.
THE CUSTOMER SHOULD ALSO AVOID THE USE OF DECORATIVE
SCARVES OR OTHER COVERINGS WHICH MIGHT OBSTRUCT VENTILATION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL
MOUNTING KIT, MUST FOLLOW THE FACTORY APPROVED MOUNTING
INSTRUCTIONS. A PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST
RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPACERS)TO PROVIDE ADEQUATE AIR FLOW ACROSS THE BOTTOM, BOLTS
OR SCREWS USED FOR FASTENERS MUST NOT TOUCH ANY PARTS OR
WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED INSTALLATIONS.
5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON
SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS
PROPERLY SECURED.
6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS MOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS ACROSS THRESHOLDS OR
DEEP PILE CARPETS.
7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND WHICH
HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES. INC. FOR
USE WITH THEIR SPECIFIC MODEL OF TELEVISION RECEIVER OR
GENERICALLY APPROVED FOR USE WITH T.V.S OF THE SAME OR
LARGER SCREEN SIZE.
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS,
EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SINGLE
OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND
FAMILY.
2
PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS
CAUTION : Do not attempt to modify this product in any way. Unauthorized modifications will not only void the warranty, but may lead to
your being liable for any resulting property damage or user injury.
Service work should be performed only after you are thoroughly
familiar with all of the following safety checks and servicing guidelines. To do otherwise, increases the risk of potential hazards and
injury to the user.
SAFETY CHECKS
After the original service problem has been corrected, a check should
be made of the following:
SUBJECT : FIRE & SHOCK HAZARD
1. Be sure that all components are positioned in such a way as to
avoid possibility of adjacent component shorts. This is especially
important on those chassis which are transported to and from the
repair shop.
2. Never release a repair unless all protective devices such as insulators, barriers, covers, shields, strain reliefs, and other hardware
have been reinstalled per original design.
3. Soldering must be inspected to discover possible cold solder joints,
frayed leads, damaged insulation (including A.C. cord), solder
splashes or sharp solder points. Be certain to remove all loose foreign particals.
4. Check for physical evidence of damage or deterioration to parts
and components, and replace if necessary follow original layout,
lead length and dress.
5. No leads or components should touch a receiving tube or a resistor
rated at 1 watt or more. Lead tension around protruding metal surfaces must be avoided.
6. All critical components such as fuses, flameproof resistors, capacitors, etc. must be replaced with exact factory types. Do not use
replacement components other than those specified or make
unrecommended circuit modifications.
7. After re-assembly of the set always perform an A.C. leakage test
on all exposed metallic parts of the cabinet, (the channel selector
knob, antenna terminals, handle and screws) to be sure the set is
safe to operate without danger of electrical shock. Do not use a
line isolation transformer during this test. Use an A.C. voltmeter,
having 5000 ohms per volt or more sensitivity, in the following
manner : connect a 1500 ohm 10 watt resistor, paralleled by a 15
mfd. 150V A.C. type capacitor between a known good earth
ground (9water pipe, conduit, etc.) and the exposed metallic parts,
one at a time. Measure the A.C. voltage across the combination of
1500 ohm resistor and 0.15 MFD capacitor. Reverse the A.C. plug
and repeat A.C. voltage measurements for each exposed metallic
part. Voltage measured must not exceed 0.75 volts R.M.S. This
corresponds to 0.5 milliamp A.C. Any value exceeding this limit
constitutes a potential shock hazard and must be corrected immediately.
A.C. VOLTMETER
GRAPHIC SYMBOLS :
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to alert
the service personnel to the presence of uninsulated “dangerous voltage” that may be of sufficienty magnitude to constitute a risk of electric
shock.
The exclamation point within an equilateral triangle is intended to alert the service personnel
to the presence of important safety information
in service literature.
Fuse symbol is printed on pcb adjacent to the
fuse, with “RISK OF FIRE REPLACE FUSE AS
MARKED”. The symbol is explained in the service manual with the following wording or equivalent.
“CAUTION :
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD, REPLACE ONLY WITH SAME TYPE (4A, 125V)” and
“
ATTENTION
: AFIN D’ASSU UNE PROTECTION PERMANENTE
CONTRE LES RISQUES D’INCENDIE, REMPLACER UNIQUEMENT PAR UN FUSIBLE DE MEME TYPE ET DE ”4A, 125V”.
SUBJECT : X-RADIATION
1. Be sure procedures and instructions to all service personnel cover
the subject of X-rays in current T.V. receivers is the picture tube.
However, this tube does not emit X-rays when the high voltage is
at the factory specified level. The proper value is given in the applicable schematic. Operation at higher voltages may cause a failure
of the picture tube or high voltage supply and, under certain circumstances, may produce radiation in excess of desirable levels.
2. Only factory specified C.R.T. anode connectors must be used.
Degaussing shields also serve as X-ray shield in color sets.
Always re-install them.
3. It is essential that the serviceman has available an accurate and
reliable high voltage meter. The calibration of the meter should be
checked perio - dically against a reference standard. Such as the
one available at your distributor.
4. When the high voltage circuitry is operating properly there is no
possibility of an X-radiation problem. Every time a color chassis is
serviced, the brightness should be run up and down while monitoring the high voltage with a meter to be certain that the high voltage
does not exceed the specified value and that it is regulating correctly. We suggest that you and your service organization review
test procedures so that voltage regulation is always checked as a
standard servicing procedure. And that the high voltage reading be
recorded on each customer’s invoice.
5. When troubleshooting and making test measurements in a receiver
with a problem of excessive high voltage, avoid being unnecessarily
close to the picture tub eand the high voltage compartment.
Do not operate the chassis longer than is necessary to locate the
cause of excessive voltage.
6. Refer to HV, B+and Shutdown adjustment procedures described in
the appropriate schematic and diagrams(where used).
Good earth ground,
such as the water
pipe, conduit, etc.
0.15 uF
1500 OHM
10WATT
Place this probe
on each exposed
metal part.
3
SUBJECT : IMPLOSION
1. All direct viewed picture tubes are equipped with an integral implosion protection system, but care should be taken to avoid damage
during installation. Avoid scratching the tube. If scratched, replace
it.
2. Use only recommended factory replacement tubes.
SUBJECT : TIPS ON PROPER INSTALLATION
1. Never install any receiver in closed-in recess, cubbyhole or closely
fitting shelf space over, or close to heat duct, or in the path of
heated air flow.
2. Avoid conditions of high humidity such as : Outdoor patio installations where dew is a factor. Near steam radiators where steam
leakage is a factor, etc.
3. Avoid placement where draperies may obstruct rear venting. The
customer should also avoid the use of decorative scarves or other
coverings which might obstruct ventilation.
4. Wall and shelf mounted installations using a commercial mounting
kit, must follow the factory approved mounting instructions. A
receiver mounted to a shelf or platform must retain its original
feet(or the equivalent thickness in spacers) to provide adequate
are flow across the bottom, bolts or screws used for fasteners
must not touch and parts or wiring. Perform leakage test on customized installations.
5. Caution customers against the mounting of a receiver on sloping
shelf or a tilted position, unless the receiver is properly secured.
6. A receiver on a roll-about cart should be stable on its mounting to
the cart. Caution the customer on the hazards of trying to roll a cart
with small casters across thresholds or deep pile carpets.
7. Caution customers against the use of a cart or stand which has not
been listed by underwriters laboratories, inc. For use with their
specific model of television receiver or generically approved for
use with T.V.’s of the same or larger screen size.
4
SPECIFICATIONS
DTQ-14P2/P3FCM
DTQ-14P2/V1FCWM/P2SCM
MODEL
ITEMS
TV STANDARD NTSC-M
POWER INPUT
POWER CONSUMPTION
TUNING SYSTEM Frequency Synthesizer ( FS ) Tuning System
TUNING RANGES
SOUND OUTPUT 1.3 W (14/20U1 Series/20V8 Series 1.3W + 1.3W)
SPEAKER 3 W 8 ohm
ANTENNA INPUT
IMPEDANCE
AUXILIARY
INPUT TERMINAL
DTQ-14V1/V5FCM/V1/V4SCM
DTQ-14V5FCNM/15U5SCM
DTQ-14V6FCBM/FCPM/FBBM/FPPM
DTQ-14J4FCGM/FCCM
DTQ-20V1/V4/V5FCM
DTQ-20V1/V4SCM
DTQ-20P2/P3FCM/P2SCM
DTQ-14V6NBM/NPM
DTQ-14V1/V3/V5FSM
DTQ-14V1/V3/V4/V5/V8/V9SSM
DTQ-14U1FSM/SSM/20U1FSM/SSM
DTQ-20P2SSM/15U5FSM
DTQ-20V1/V3/V4FSM
DTQ-20V1/V3/V4/V8/V9SSM
AC 120V 60 Hz
DTQ-14V1/V4/V5FSPM
DTQ-14V1/V4/V5/U1SSPM
DTQ-14V6NBPM/NPPM
DTQ-20V1/V4FSPM
DTQ-20V1/V3/V4/U1SSPM
DTQ-15U5SSPM
AC 220V 50/60 Hz
14 = 55W
20 = 68W
VHF : 2 ~ 13 (12)
UHF : 14 ~ 69 (56)
CATV : 1 ~ 125 (125)
75 ohm Unbalanced
Front : Video, Audio
Rear : Video, Audio
"P" Series Without Video, Audio
DTQ-14V1/V4SSFM
DTQ-20V1/V4SSFM
DTQ-14V4/20V4FCFM
AC60-180V(SSFM Series)
AC90-250V(FCFM Series)
REMARKS
INTERMEDIATE
FREQUENCIES
Picture IF Carrier Frequency : 45.75 MHz
Sound IF Carrier Frequency : 41.25 MHz
Color Sub-Carrier Frequency : 3.579545 MHz
REMOTE CONTROL R-43A08
3-Language OSD
With CAPTION
SPECIAL FUNCTIONS
Wake-up On/Off Time
Sleep Timer
Power Restore
5
BLOCK DIAGRAM
#2
5
LA78041
Coupler
I805/I806
MR2520
D881~
D884
A.MUTE(H)
6
ALIGNMENT INSTRUCTIONS
1. SERVICE MODE ADJUSTMENTS
Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if
service adjustments are required.
1) How to enter the service mode using the user remote control.
•
Turn the set on.
•
Direct the remote control to the reception window of TV.
•
Push buttons of remote control in sequence as follows.
1 → MUTE → DISPLAY → MUTE
•
Then, the screen will appear as follows.
S2 SCRN
S5 IFC
S6 GEO
S8 W/B
S9 DP
S12 FACT
S7 PTRN NORMAL
•
Using the channel up or channel down button, select the item you wish to adjust.
(The color of selected item turns into the red.)
•
Press the volume up or down button to enter in the service mode you wish to adjust.
2) How to memorize the adjusted values in the service mode.
•
Must press
DISPLAY
button the state which the screen is displaying each of service
after all adjustments are completed each of all service menu.
Table-A : Adjust the values of service mode when a part is replaced.
PART
REPLACED
I701
(U-COM)
I101
(MAIN)
I703
(EEPROM)
NECESSARY UNNECESSARY
ADJUSTMENT
O
O
O
Data is stored in I703.
Initial setting values are written from I701.
Adjusting Items
S5 RFAGCD
S6 H.PHASE/V.POSI/V.SIZE
S8 RD/BD/RB/GB/BB
S9 Subbrightness
menus
NOTES
CRT O Adjust items related to picture tube only.(White Balance adjustment)
7
8
ALIGNMENT INSTRUCTIONS
Table-B
*
indicates the items with different settings each of sets
MODE ADJUSTMENT ITEMS
DATA
REMARKS
INITIAL RANGE
S2 Screen Adjustment - -
S5
Auto RF AGC - -
Video Level (VIDEOL) 7 0 ~ 7 Must be set to 7
RF AGC Delay (RFAGCD) * 0 ~ 63 Align RF AGC threshold
FM Level (FM.LEV) 8 0 ~ 31 Must be set to 30
AGC Point 3.75 - Select AGC reference voltage
A/D VALUE - -
S6
Horizontal Phase(H.PHASE) * 0 ~ 31 Align sync to flyback pulse, using internal cross pattern(S7)
Vertical Position (V.POSI) * 0 ~ 63 Align vertical DC bias, using internal cross pattern(S7)
Vertical Size (V.SIZE) * 0 ~ 127 Align vertical amplitude, using internal cross pattern(S7)
NO SD POWER OFF YES - Automatically turn off in 15min for no received signal.
Vertical S-Correction (V SC) 0 0 ~ 31 Must be set to 7
Vertical Linearity (V LIN) 18 0 ~ 31 Must be set to 18
S7
Internal Black - - Display internal BLACK pattern
Internal 100% White - - Display internal 100% WHITE
Internal 60% White - - Display internal 60% WHITE
Internal Cross Pattern - - Display internal CROSS pattern
S8
Red Drive (RD) * 0 ~ 127 Align RED OUT AC level
Green Drive (GD) 10 0 ~ 15 Must be set to 10
Blue Drive (BD) * 0 ~ 127 Align BLUE OUT AC level
Red Bias (RB) * 0 ~ 255 Align RED OUT DC level
Green Bias (GB) * 0 ~ 255 Align GREEN OUT DC level
Blue Bias (BB) * 0 ~ 255 Align BLUE OUT DC level
S9
S11
Subbrightness * 0 ~ 127 Align common RGB DC level
Must be set to 20
Must be set to 32
Must be set to 32
Must be set to 20
Contrast 10 0 ~ 27
Tint 27 0 ~ 77
Color
Sharp
RGDEF
BGSLC
HBR
HBL
GYAng
CkOPE
WPL
PREADJ
Dcrest
BLKSTR
BLKGAN
Hout On
Hout of
1
3
1
6
1
1
0
0
3
3
3
3
3
0,1
0~3
0~7
0~7
0,1
0~7
0,1
0~3
0~3
0~3
0~3
0~31
0~31
15
30
0 ~ 47
0 ~ 30
S12 Forwarding Mode - Factory Initialization
9
2) FOCUS ADJUSTMENT
•
Turn in a local station and adjust the Focus Control knob (located on FBT) for best picture
details at high light condition.
3) RF AGC DELAY ADJUSTMENT (S5)
•
Receive a good local channel.
•
Enter the service mode and select service adjustment S5.
•
You can see the OSD as shown in below.
•
Select RFAGCD item, press the volume up or down button until noise or beat in picture disappears.
•
Press the DISPLAY button to memorize the data.
IF CONTROL
AUTO RFAGC START
VIDEOL 7
RFAGCD 10
FM.LEV 30
AGC POINT 3.75
MOVE ADJUST RECALL : SET
2. ASSEMBLY ADJUSTMENTS
1) SCREEN ADJUSTMENT (S2)
•
Enter the service mode and select service adjustment S2.
•
You cna see the one horizontal line on the screen.
•
Adjust the Screen Control Volume (located on FBT) so that the horizontal line onscreen may be
disappeared.
•
Press the volume up or down button to exit in the screen adjustment mode.
IN THE SCREEN ADJUSTMENT MODE, DONT PRESS OTHER BUTTONS EXCEPT VOLUME UP OR DOWN BUTTON.
NOTE
ALIGNMENT INSTRUCTIONS
10
ALIGNMENT INSTRUCTIONS
4-3. Vertical Size Adjustment
•
Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows.
4) GEOMETRIC ADJUSTMENTS (S6)
•
Enter the service mode and select service adjustment S7.
•
Whenever you select the “S7” using the volume up or down button, the screen is changing like this.
•
Using the volume up or down button, select internal cross pattern.
•
Select service adjustment S6
•
You can see the OSD as shown in below.
4-1. Horizontal Position Adjustment
•
Select H.PHASE item, adjust H.PHASE data value to obtain proper horizontal centering of the
internal cross pattern at the left and right of the screen.
4-2. Vertical Position Adjustment
•
Select V.POSI item, adjust V.POSI data value to center the raster properly on thescreen.
GEOMETRY
H. PHASE 17
V. POSI 29
V. SIZE 80
NO SD POWER OFF YES
VSC 7
V LIN 18
MOVE ADJUST RECALL : SET
NORMAL BLACK WHITE100 WHITE60 CROSS
11
ALIGNMENT INSTRUCTIONS
•
Select Subbrightness item, adjust Subbrightness data value
to obtain normal
brightness level.
•
Press the DISPLAY button to memorize the data.
CONTRAST
•
Fixed value = 20
TINT
•
Fixed value = 32
COLOR
•
Fixed value = 32
7) FACTORY OUTGOING MODE (S12 : FACT)
•
If you select the S12, then the set becomes factory outgoing status.
•
You can see the OSD “outgoing OK”
6) DIGITAL PRESET(D.P) ADJUSTMENTS(S9)
SUBBRIGHTNESS ADJUSTMENT
•
Receive a good local channel.
•
Enter the service mode and select service adjustment S9.
•
You can see the OSD as shoown in below.
D.P.
SUB BRIGHTNESS 64
CONTRAST 20
TINT 32
COLOR 32
MOVE ADJUST RECALL : SET
5) WHITE BALANCE ADJUSTMENT(S8)
•
Receive a good local channel.
•
Enter the service mode and select service adjustment S8.
•
You can see the OSD as shown in below.
•
Using volume up or volume down, adjust service adjustment data of RD/GD/BD and RB/GB/BB until a good gray
scale with normal whites is obtained.ALIGNMENT INSTRUCTIONS
•
Press the DISPLAY button to memorize the data.
RD 58
GD 10
BD 65
RB 105
GB 127
BB 100
MOVE ADJUST RECALL : SET
ALIGNMENT INSTRUCTIONS
3. PARENTAL CONTROL PASSWORD SETTINGS
If user forget Parental Control Password as follows.
1) CHANGE THE PASSWORD.
• Turn the set on.
• Direct the remote control to the reception window of your TV/VCR
• Using the MENU buttons, select the Special menu.
¡ã
• Using the the channel up (
• Using the volume up (
• Push buttons of remote control in sequence as follows.
2 2 1 1
• Parental control password is reset.
• Using the 0~9 buttons, enter the password.
• Using the 0~9 buttons, repeat the password.
) or down ( ¡å ) duttons, select prental control.
¢º
), set the password Menu.
Special
Closed Caption : OFF
CC on Mute : OFF
Power Restore : OFF
Parental Control
Select Enter n Exit
Parental control
Enter New Password
[0 - 9] : Adjust
n
Exit
Parental control
Enter the Password
[0 - 9] : Adjust
Parental control
Repeat the Password
[0 - 9] : Adjust
# # # #
# # # #
n
Exit
n
Exit
2) RESET THE PASSWORD
• Turn the set on.
• Direct the remote control to the reception window of your TV/VCR.
• Push buttons of remote control in sequence as follows.
1 MUTE DISPLAY MUTE
• Then, the screen will appear as follows.
FIELE SVC
S2 SCRN V.=02h RCCR=00h
S5 IFC
S6 GEO
S8 W/B
S9 DP
S12 FACT
S7 PTRN NORMAL
¢º S10 SOUND
¡ã
• Using the channel up (
Press the volume up (
) or down ( ¡å ) buttons, select S12 FACT.
¢º
) button, the set becomes factory outgoing status.
• Parental control password is reset.
• Using the MENU buttons, select the parental control menu, set the new password.
12
VOLTAGE CHART
13
LOC PIN
MODE
LOC PIN
MODE
ON OFF ON OFF
I501 1 2.17 0 44 2.63 0
2 1.95 0 45 2.39 0
3 2.7 0 46 2.16 0
4 2.39 0.49 47 3.62 0
5 2.86 0 48 4.23 0.51
6 2.86 0 49 4.23 0.51
7 0 0 50 2.3 0
8 4.87 0.57 51 2.19 0.65
9 1.76 0 52 1.99 0.32
10 2.46 0.28 53 2.39 0
11 4.9 4.93 54 3.08 0.3
12 4.86 4.92
LOC PIN
MODE
13 3.59 0 ON OFF
14 1.38 0 I301 1 2.21 0
15 1.39 0 2 25.7 0
16 1.39 0 3 2.27 3.63
17 0 0 4 0 0
18 8.11 0.235 5 13.65 0
19 2.61 0.232 6 26.2 0.43
20 2.57 0 7 2.21 0
21 2.71 0
LOC PIN
MODE
22 NC NC ON OFF
23 2.27 0 I401 1 7.66 0
24 2.59 0 2 0 0
25 5.12 4.23 3 4.95 0.6
26 2.62 2.2
LOC PIN
MODE
27 0.94 0.16 ON OFF
28 0.86 1.37 I601 1 12.09 7.19
29 1.69 1.4 2 6.2 0
30 4.96 0.706 3 6.5 0
31 0 0 4 0.824 0
32 2.73 0.31 5 0 0
33 0 0 6 0 0
34 0 0 7 0 0
35 2.37 0 8 0 0
36 3.38 0 9 0 0
37 1.72 0 10 0 0
38 2.77 0.35 11 0 0
39 5.09 0 12 0 0
40 2.12 0 13 0 0
41 0 0 14 0 0
42 2.45 0 15 0 0
43 4.84 0.5 16 0 0
VOLTAGE CHART
14
LOC PIN
MODE
LOC PIN
MODE
ON OFF ON OFF
I701 1 4.86 4.96 I703 1 0 0
2 4.81 4.94 2 0 0
3 5.03 4.97 3 0 0
4 5.03 4.97 4 0 0
5 0 0 5 4.91 4.94
6 1.9 1.87 6 4.86 4.92
7 2.71 2.67 7 0 0
8 4.99 4.91 8 5.01 4.95
9 5.04 4.95
LOC PIN
MODE
10 0 0 ON OFF
11 2.28 0 I801 1 2.47 0
12 0 4.88 2 2.33 1.33
13 4.93 4.87 3 0 0
14 3.71 3.64 4 18.28 9.19
15 2.66 2.44 5 137.2 145
16 0 4.88 6 0.067 0
17 4.96 0.71 7 137.2 145
18 4.07 4.95
19 0 0
20 0 0
21 0 0
22 0 0
23 4.84 4.56
24 0 0
25 0 0
26 0 0
27 0 0.22
28 5.03 4.93
29 4.8 4.7
30 5.05 4.95
31 0 4.88
32 5.05 4.95
33 0 0
34 0 0
35 0 0
36 0 0
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