Daewoo DTQ-14P2/P3FCG User manual

Service Manual
Color Television
CHASSIS :CN-001G
Model
S/M No.:TCN001GEF0
DTQ-14P2/P3FCG
DTQ-14P2/V1FCWG/P2SCG
DTQ-14V1/V5FCG/V1/V4SCG
DTQ-14V5FCNG/15U5SCG
DTQ-14V6FCBG/FCPG/FBBG/FPPG
DTQ-14J4FCGG/FCCG
DTQ-20V1/V4/V5FCG
DTQ-20V1/V4SCG
DTQ-20P2/P3FCG/P2SCG
U.S.A
CANADA
(AC120V)
DTQ-14V6NBG/NPG
DTQ-14V1/V3/V5FSG
DTQ-14V1/V3/V4/V5/V8/V9SSG
DTQ-14U1FSG/SSG/20U1FSG/SSG
DTQ-20P2SSG/15U5FSG/SSG/15U7SSG
DTQ-20V1/V3/V4FSG
DTQ-20V1/V3/V4/V5/V8/V9SSG
Middle America
(AC 110V)
DTQ-14V1/V4/V5FSPG
DTQ-14V1/V4/V5/U1SSPG
DTQ-14V6NBPM/NPPG
DTQ-20V1/V4FSPG
DTQ-20V1/V3/V4/U1SSPG
DTQ-15U5SSPG
DTQ-14V1/V4/V8SSFG
DTQ-20V1/V4/V8SSFG
DTQ-14V4/20V4FCFG
Chile, Peru, Philippines
(AC220V)
(AC90~250)
Korea, USA, Japen(AC90~260V)
http ://svc.dwe.co.kr
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center(http://svc.dwe.co.kr)
DAEWOO ELECTRONICS Corp.

1
TABLE OF CONTENTS
APPENDIX (Appendix is provide only by internet [http://svc.dwe.co.kr])
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
IC DESCRIPTION ................................................................................................................................ 1
TROUBLE SHOOTING CHARTS........................................................................................................ 7
NO POWER..................................................................................................................................................... 7
NO PICTURE................................................................................................................................................... 8
NO SOUND...................................................................................................................................................... 9
CH DON’T MEMORY or CH SKIP ................................................................................................................. 10
NO COLOR...................................................................................................................................................... 11
NO VERTICAL DEFLECTION......................................................................................................................... 11
NO ON-SCREEN DISPLY ............................................................................................................................... 12
REMOTE CONTROL DOES NOT OPERATE................................................................................................. 12

2
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS
CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY.
NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-
TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID
THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT-
ING PROPERTY DAMAGE OR USER INJURY.
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOR-
OUGHLY 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.
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 TRANS-
PORTED 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 SOL-
DER JOINTS, SOLDER SPLASHES OF SHARP SOLDER POINTS. BE CER-
TAIN 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 ORIGI-
NAL 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 PRO-
TRUDING 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 SPECI-
FIED 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 CHAN-
NEL SELECTOR KNOB, ANTENNA TERMINALS, HANDLE AND SCREWS) TO
BE SURE THE SET IS SAFE TO OPERATE WITHOUT DANGER OF ELECTRI-
CAL 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 CAPACI-
TOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER POPE, CON-
DUIT, 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.
SUBJECT : GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL,
WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED
TO ALERT THE SERVICE PERSONNEL TO THE PRES-
ENCE OF UNINSULATED “DANGEROUS VOLTAGE”
THAT MAY BE OF SUFFICIENT MAGNITUDE TO CON-
STITUTE 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 PERSON-
NEL 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 VOLT-
AGE IS AT THE FACTORY SPECIFIED LEVEL. THE PROPER VALUE IS
GIVEN IN THE APPLICABLE SCHEMATIC. OPERATION AT HIGHER VOLT-
AGES MAY CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH VOLTAGE
SUPPLY AND UNDER CERTAIN CIRCUMSTANCES, AMY PRODUCE RADIA-
TION 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 ACCU-
RATE 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 VENTILA-
TION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL
MOUNTING KIT, MUST FOLLOW THE FACTORY APPROVED MOUNTING
INSTRUCTIONS.APRODUCTMOUNTEDTO A SHELF ORPLATFORMMUST
RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPAC-
ERS)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 MOUNT-
ING TO THE CART. CAUTION THE CUSTOMER ON THE HAZARDS OF TRY-
ING 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.
10WATT
GOOD EARTH GROUND
SUCH AS THE WATER
PIPE, CONDUIT, ETC. 1500 OHM
A.C. VOLTMETER
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
0.15 uF

3
PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS
CAUTION : Do not attempt to modify this product in any way. Unau-
thorized 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 guide-
lines. To do otherwise, increases the risk of potential hazards and
injury to the user.
SAFETY CHECKS
Aftertheoriginal serviceproblemhas beencorrected, a checkshould
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
repairshop.
2.Neverrelease arepairunless allprotectivedevices suchasinsula-
tors, barriers, covers, shields, strain reliefs, and other hardware
have been reinstalled per original design.
3.Soldering mustbe inspectedtodiscoverpossiblecoldsolderjoints,
frayed leads, damaged insulation (including A.C. cord), solder
splashes or sharp solder points. Be certain to remove all loose for-
eign 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 leadsor componentsshouldtouchareceiving tubeor aresistor
rated at 1 watt or more. Lead tension around protruding metal sur-
faces must be avoided.
6. All critical components such as fuses, flameproof resistors, capaci-
tors, etc. must be replaced with exact factory types. Do not use
replacement components other than those specified or make
unrecommendedcircuitmodifications.
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 imme-
diately.
GRAPHIC SYMBOLS :
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to alert
theservicepersonnel tothe presence ofuninsu-
lated “dangerous voltage” that may be of suffi-
cienty magnitude to constitute a risk of electric
shock.
The exclamation point within an equilateral tri-
angle is intended to alert the service personnel
to the presence of important safety information
inservice 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 ser-
vice manual with the following wording or equiv-
alent.
“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 UNIQUE-
MENT 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
atthe factoryspecified level.The propervalue isgivenintheappli-
cable schematic. Operation at higher voltages may cause a failure
of the picture tube or high voltage supply and, under certain cir-
cumstances, 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.
Alwaysre-installthem.
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 monitor-
ingthehighvoltagewith ameter tobe certainthatthe highvoltage
does not exceed the specified value and that it is regulating cor-
rectly. We suggest that you and your service organization review
test procedures so that voltage regulation is always checked as a
standardservicing procedure.And thatthe highvoltage readingbe
recorded on each customer’sinvoice.
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).
10WATT
Good earth ground,
such as the water
pipe, conduit, etc. 1500 OHM
A.C. VOLTMETER
Place this probe
on each exposed
metal part.
0.15 uF

4
SUBJECT : IMPLOSION
1. All direct viewed picture tubes are equipped with an integral implo-
sion 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
heatedairflow.
2. Avoid conditions of high humidity such as : Outdoor patio installa-
tions 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 cus-
tomized 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
thecart. Cautionthe customeron thehazards oftrying toroll acart
with small casters across thresholds or deep pile carpets.
7.Cautioncustomers againsttheuse ofacart orstandwhich hasnot
been listed by underwriters laboratories, inc. For use with their
specific model of television receiver or generically approved for
usewithT.V.’s of the same or larger screen size.

MODEL
ITEMS DTQ-20V1/V4FSPG
DTQ-20V1/V3/V4/U1SSPG
DTQ-15U5SSPG
DTQ-14V1/V4/V5FSPG
DTQ-14V1/V4/V5/U1SSPG
DTQ-14V6NBPG/NPPG
DTQ-14V1/V4/V8/U1SSFG
DTQ-20V1/V4/V8/U1SSFG
DTQ-14V4/20V4FCFG
REMARKS
TV STANDARD NTSC-M
POWER INPUT AC 120V 60 Hz AC 220V 50/60 Hz
AC90-250V(FCFM Series)
POWER CONSUMPTION 14 = 55W
20 = 65W
TUNING SYSTEM Frequency Synthesizer ( FS ) Tuning System
TUNING RANGES
VHF : 2 ~13 (12)
UHF : 14 ~69 (56)
CATV : 1 ~125 (125)
SOUND OUTPUT 1.3 W (14/20U1 Series/20V8 Series 1.3W + 1.3W)
SPEAKER 3 W 8 ohm
ANTENNA INPUT
IMPEDANCE 75 ohm Unbalanced
AUXILIARY
INPUT TERMINAL
Front : Video, Audio
Rear : Video, Audio
"P" Series Without Video, Audio
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
SPECIAL FUNCTIONS
3-Language OSD
With CAPTION
Wake-up On/Off Time
Sleep Timer
Power Restore
DTQ-14P2/P3FCG
DTQ-14P2/V1FCWG/P2SCG
DTQ-14V1/V5FCG/V1/V4SCG
DTQ-14V5FCNG/15U5SCG
DTQ-14V6FCBG/FCPG/FBBG/FPPG
DTQ-14J4FCGG/FCCG
DTQ-20V1/V4/V5FCG
DTQ-20V1/V4SCG
DTQ-20P2/P3FCG/P2SCG
DTQ-14V6NBG/NPG
DTQ-14V1/V3/V5FSG
DTQ-14V1/V3/V4/V5/V8/V9SSG
DTQ-14U1FSG/SSG/20U1FSG/SSG
DTQ-20P2SSG/15U5FSG/SSG/15U7SSG
DTQ-20V1/V3/V4FSG
DTQ-20V1/V3/V4/V5/V8/V9SSG
SPECIFICATIONS
5

BLOCK DIAGRAM
6

7
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.
• 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 menus
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
ADJUSTMENT NOTES
NECESSARY UNNECESSARY
I701
(U-COM) OData is stored in I703.
I101
(MAIN) O
I703
(EEPROM) O
Initial setting values are written from I701.
Adjusting Items
CRT OAdjust items related to picture tube only.(White Balance adjustment)
S2 SCRN
S5 IFC
S6 GEO
S8 W/B
S9 DP
S12 FACT
S5 RFAGCD
S6 H.SHIFT/V.SHIFT/V.SIZE
S8 RD/BD/RB/GB/BB
S9 Brightness

8
ALIGNMENT INSTRUCTIONS
Table-B
*
indicates the items with different settings each of sets
S2
Align RF AGC threshold
Select AGC reference voltage
22 10
Automatically turn off in
15min for no received signal
0 0 0,1 0,1
1 0 0,1 0,1
0 0 0,1 0,1
0 0 0,1 0~3
0 0 0~3 0~3
3 0 0~3 0,1
0 0 0,1 0,1
0 1 0,1 0,1
ON 15 ON,OFF 0~30
Align RED OUT AC level
Align BLUE OUT AC level
Align RED OUT DC level
Align Green OUT DC level
Align BLUE OUT DC level
Align common RGB DC level
1 0 0,1 0,1
0 1 0,1 0,1
0 1 0,1 0,1
0 1 0,1 0,1
00,1
00,1
00,1
S12 Factory Initialization
DATA
INITIAL RANGE
Auto Hvco
Auto RFAGC
MODE ADJUSTMENT ITEMS
OK OK, NG
EXT
Screen Adjustment
H Vco adj
RF-DELAY
AGC Point
VCO CH NO AGC CH NO
Auto Vco - - OK 0~6333
04 0~7
90 0~125
OK OK, NG
0~15
02 0~7
3.75 3.25/3.5/3.75/4.0
-
REMARKS
Vif F
C Clip Level
TRAP Off
NO NO,YES
NO NO,YES
38 0~63
Black stretch discharge
Black stretch charge
Forwarding Mode
Killer levelTake off
ABCL Gain
AFT defeat
HVBLK off
Sharpness
Video Tsharp
ABCL
Blackstre.off
SsliceDown2
SsliceDown1
OSD level
00,1
Tint
Color
10,1
00,1
00,1
40~7
00,1
00,1
10,1
00,1
40~7
64 0~127
64 0~127
Brightness
Contrast
128 0~255
128 0~255
128 0~255
00 0~255
127 0~255
00 0~255
63 0~127
63 0~127
140 0~255
70 0~155
12 0~27
42 0~77
15 0~27
38 0~43
SCR B-BIAS
SCR R-DRIVE
SCR B-DRIVE
SCR BRIGHT
GB(Green Bias)
BB(Blue Bias)
SCR R-BIAS
SCR G-BIAS
VIF VIDEO OUT GAIN
RD(Red Drive)
BD(Blue Drive)
RB(Red Bias)
20~3
AFC1 Gain
AFC2 Gain
Analog OSD
US/JA SW
SYNC DET
Auto Slice Down
FBL Vth L
BGpFbp OFF
00~3
OK, NG
VBLK Shift
VBLK Shift On
NO SD POWER OFF
H.Shift(Horizental Shift)
V.Shift(Vertical Shift)
V.Size(Vertical Size) 03 0~7
09
S7(2)
Service SW
V Mute
HTONE SW
White Back
V Free
Gamma Control
Trap Fine ad
H Free
WINDOW
FM Level
S5
S6
S7(1)
Y SW LPF
Y DL Fine
Y DL Time
VOUT STOP
Fsc Free
VIF VCO Adj
S8(1)
S8(2)
S9
S11

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.
2. ASSEMBLY ADJUSTMENTS
) 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
IF CONTROL
AUTO VCO  OK
VIF VCO ADJ 33
AUTO HVCO OK
HVCO ADJ 04
AUTO RFAGC START
RF-DELAY 90
AGC POINT 3.75
VCO CH NO 22  AGC CH NO 10

4-3. Vertical Size Adjustment
• Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows.
• You can see the OSD as shown in below.
4- . Horizontal SHIFT Adjustment
• Select H.SHIFT item, adjust H.SHIFT data value to obtain proper horizontal centering of the
internal cross pattern at the left and right of the screen.
4-2. Vertical SHIFT Adjustment
• Select V.SHIFT item, adjust V.SHIFT data value to center the raster properly on thescreen.
GEOMETRY
H. SHIFT 09
V. SHIFT 02
V. SIZE 38
VBLK SHIFT 03
VBLK SHIFT ON NO
NO SD POWER OFF  NO
MOVE ADJUST RECALL:SET
10
ALIGNMENT INSTRUCTIONS
4) GEOMETRIC ADJUSTMENTS (S6)
• Enter the service mode and select service adjustment S6.

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 = 12
TINT
∑ Fixed value = 42
COLOR
∑ Fixed value = 15
SHARPNESS
∑ Fixed value = 38
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.
BRIGHTNESS 64
CONTRAST 12
TINT 42
COLOR 15
SHARPNESS 38
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 64
BD 64
RB 128
GB 128
BB 128
MOVE ADJUST RECALL : SET

12
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.
• Using the the channel up ( ) or down ( ) duttons, select prental control.
• Using the volume up ( ), set the password Menu.
• 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.
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.
• Using the channel up ( ) or down ( ) buttons, select S12 FACT.
Press the volume up ( ) 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.
ALIGNMENT INSTRUCTIONS
S2 SCRN
S5 IFC
S6 GEO
S8 W/B
S9 DP
S12 FACT
Closed Caption : OFF
CC on Mute : OFF
Power Restore : OFF
Parental Control
Special
Select Adjust n Exit
Enter the Password
# # # #
Parental control
[0 - 9] : Adjust n Prev.
Enter a New Password
Parental control
[0 - 9] : Adjust
n
Prev.
Repeat the Password
# # # #
Parental control
[0 - 9] : Adjust
n
Exit

VOLTAGE CHART
13
ON
ONON
ON OFF
OFFOFF
OFF ON
ONON
ON OFF
OFFOFF
OFF
1 4.9 0 49 5.73 0
2 2.63 0 50 2.28 0
3 5.04 0 51 2.44 0
4 5.04 0 52 2.22 0.2
5 3.74 0 53 3.23 0.36
6 2.97 0 54 3.2 0
7 3.4 0 55 3.27 0.1
800 5600
900 5700
10 0.8 0 58 2.2 0
11 2.14 0 59 1.75 0
12 7.8 0 60 2.2 0
13 0 0 61 2.62 0
14 2.17 0 62 2.62 0.16
15 2.17 0 63 1.52 0.16
16 2.28 0 64 1.52 0
17 3.77 0
18 2.8 0 ON
ONON
ON OFF
OFFOFF
OFF
19 4.26 0 1 2.99 0
204.870224.970.47
21 0 0 3 2.55 0
2200 400
23 0 0 5 15.53 0
24 0 0 6 25.63 3.57
25 5.05 5.05 7 2.99 0
26 3.71 5.05
27 3.71 5.05 ON
ONON
ON OFF
OFFOFF
OFF
28 5 0 1 12.76 9.92
29 2.49 2.36 2 6.65 0
30 5 5.03 3 6.88 0
31 2.74 0 4 0.824 0
32 5.64 5.68 5 0 0
33 2.09 0 6 0 0
34 3.24 3.19 7 0 0
3500 800
3600 900
37 2.89 0.3 10 0 0
38 1.99 0.3 11 0 0
39 5.08 0 12 0 0
40 5.08 0 13 0 0
41 2.55 0.3 14 0 0
42 8.55 8.35 15 0 0
43 3.24 0.24 16 0 0
44 7.86 0.1
45 0 0 ON
ONON
ON OFF
OFFOFF
OFF
46 0 0 1 2.47 2.05
47 8.46 0 2 0 0
48 1.96 0 3 11.98 8.28
L/C
L/CL/C
L/C PIN
PINPIN
PIN L/C
L/CL/C
L/C PIN
PINPIN
PIN
PIN
PINPIN
PIN MODE
MODEMODE
MODE
MODE
MODEMODE
MODE MODE
MODEMODE
MODE
1803
I101
I301
L/C
L/CL/C
L/C
L/C
L/CL/C
L/C
MODE
MODEMODE
MODE
I601
L/C
L/CL/C
L/C PIN
PINPIN
PIN MODE
MODEMODE
MODE
PIN
PINPIN
PIN

VOLTAGE CHART
14
ON
ONON
ON OFF
OFFOFF
OFF ON
ONON
ON OFF
OFFOFF
OFF
1 0 5 5.06 5.06
2 0 6 5.06 5.06
30 700
4 0 8 5.06 5.06
50
60 ON
ONON
ON OFF
OFFOFF
OFF
7 2.64 1 1.58 164
80 2NCNC
9 5.04 3 0 0
10 0 4 19.6 13.3
11 0 5 0.18 0
12 5.05 6 1.2 1.65
13 5.05 7 2.76 0.6
14 0
15 5.03
16 0.96
17 1.4
18 0
19 0
20 5.05
21 0
22 5.05
23 1.69
24 2.14
25 0.27
26 2.47
27 5
28 1.98
29 5.04
30 3.67
31 3.72
32 5.04
33 0
34 0
35 0
36 0
37 4.86
38 4.25
39 2.8
40 5.05
41 0
42 5.05
ON
ONON
ON OFF
OFFOFF
OFF
100
200
300
400
L/C
L/CL/C
L/C
MODE
MODEMODE
MODE MODE
MODEMODE
MODE
L/C
L/CL/C
L/C PIN
PINPIN
PIN L/C
L/CL/C
L/C PIN
PINPIN
PIN
PIN
PINPIN
PIN MODE
MODEMODE
MODE
L/C
L/CL/C
L/C
I703
I801
I701
PIN
PINPIN
PIN MODE
MODEMODE
MODE

VOLTAGE CHART
15
ON
ONON
ON OFF
OFFOFF
OFF ON
ONON
ON OFF
OFFOFF
OFF
C 29.7 33.6 C 15.4 10.47
E 0 0 E 7.87 0
B 0.3 0 B 8.46 0
C 9.9 0 C 6.82 0
E 0 0 E 5.09 0
B 0 0 B 5.72 0
C 0 0 C 17.12 11.6
E 2.07 0 E 8.49 8.37
B 1.76 0 B 9.08 8.95
C 0.3 0 C 6.49 0
E 9.8 0.39 E 0 0
B 9.9 0 B 0 0.65
C 6.86 0 C 5.05 5.05
E 0 0 E 0 4.34
B 0 0.69 B 0 0
C 13.99 8.4 C 5.04 5.05
E 5.04 5.06 E 0 0
B 5.04 5.68 B 0 0
Q404
Q501
MODE
MODEMODE
MODE MODE
MODEMODE
MODE
L/C
L/CL/C
L/C PIN
PINPIN
PIN L/C
L/CL/C
L/C PIN
PINPIN
PIN
Q575
Q653
Q701
Q801
Q403
Q807
Q873
Q707
Q703
Q401

WAVEFORMS
16
(1) I101 PIN 14
V:1V/div
H:25us/div
(2) I101 PIN 15
V:1V/div
H:25us/div
(3) I101 PIN 16
V:1V/div
H:25us/div
(4) I101 PIN 5
V:500mV/div
H:5ms/div
(5) I101 PIN 40
V:500mV/div
H:25us/div
(6) I101 PIN 58
V:500mV/div
H:25us/div
(7) I101 PIN 63
V:10V/div
H:5ms/div
(8) I101 PIN 37
V:2V/div
H:25us/div

WAVEFORMS
17
(9) I701 PIN 38
V:20V/div
H:25us/div
(10) I801 PIN 7
V:100V/div
H:10us/div
(11) T402 PIN 25.5V
V:100V/div
H:25us/div
(12) T402 PIN 10.5V
V:50V/div
H:25us/div
(13) T402 PIN HEATER
V:10V/div
H:25us/div
(14) T402 PIN 180V
V:100V/div
H:25us/div

WAVEFORMS
18
(17) T401 PIN H.V
V:100V/div
H:25us/div
(18) T801 PIN 133V
V:100V/div
H:10us/div
(19) Q401 COLLECTOR
V:5V/div
H:25us/div
(20) CRT SOCKET PIN B
V:50V/div
H:25us/div
(21) CRT SOCKET PIN R
V:50V/div
H:25us/div
(22) CRT SOCKET PIN G
V:50V/div
H:25us/div

19
SCHEMATIC DIAGRAM