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S/M No.:CN001N-010
Service Manual
Color Television
CHASSIS : CN-001N
Model :
DTQ-14V1FCN/20V1FCN U.S.A
DTQ-14V5FCN/20V4FCN Canada
DTQ-14V1FSN/20V1FSN
Middle America
DTQ-14V5FSN/20V4FSN
(AC 110V)
DTQ-14V3FSN/20V3FSN
DTQ-14U1FSN/20U1FSN
DTQ-14V1FSPN/20V1FSPN
Mexico,Chile,
DTQ-14V5FSPN/20V4FSPN
Peru (AC 220V)
DTQ-14U1FSPN/20U1FSPN
DTQ-14V1FCN DTQ-20V4FCN
DTQ-14V3FCN
DTQ-14V5FCN DTQ-14U1FSN
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr Dec. 2000
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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 ...............................................................................................................................
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PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSON- THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- NEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENTIAL ING PROPERTY DAMAGE OR USER INJURY. SOURCE OF
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PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS CAUTION : Do not attempt to modify this product in any way. Unau- GRAPHIC SYMBOLS : thorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. The lightning flash with arrowhead symbol, Service work should be performed only after you are thoroughly within an equilateral triangle, is intended to alert familiar with all of the following safety checks
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4. Wall and shelf mounted installations using a commercial mounting SUBJECT : IMPLOSION kit, must follow the factory approved mounting instructions. A 1. All direct viewed picture tubes are equipped with an integral implo- receiver mounted to a shelf or platform must retain its original sion protection system, but care should be taken to avoid damage feet(or the equivalent thickness in spacers) to provide adequate are flow across the bottom, bolts or screws used for fasteners during installation
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SPECIFICATIONS DTQ-14/20V1FCN MODEL DTQ-14V5/20V4FCN DTQ-14/20V1FSPN DTQ-14/20V1FSN DTQ-14/20U1FSN DTQ-14/20U1FSPN REMARKS DTQ-14V5/20V4FSPN ITEMS DTQ-14V5/20V4FSN DTQ-14/20V3FSN TV STANDARD NTSC-M POWER INPUT AC 120V 60 Hz AC 220V 50/60 Hz 14 = 55W POWER CONSUMPTION 20 = 68W TUNING SYSTEM Frequency Synthesizer ( FS ) Tuning System VHF : 2 ~ 13 (12) TUNING RANGES UHF : 14 ~ 69 (56) CATV : 1 ~ 125 (125) SOUND OUTPUT 1.3 W 1.3 W+1.3 W 1.3 W SPEAKER 3 W 8 ohm ANTENNA I
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BLOCK DIAGRAM 5 ) H ( E T U M . A 6
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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. ® ® ® • Then, the screen will appear as follows. S2 SCRN S8 W/B • Using the channel up or channel d
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ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARKS INITIAL RANGE S2 Screen Adjustment - - Auto RF AGC - - Video Level (VIDEOL) 7 0 ~ 7 Must be set to 7 RF AGC Delay (RFAGCD) * 0 ~ 63 Align RF AGC threshold S5 FM Level (FM.LEV) 8 0 ~ 31 Must be set to 20 AGC Point 3.75 - Select AGC reference voltage A/D VALUE - - 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
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ALIGNMENT INSTRUCTIONS 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. IF CONTROL AUTO RFAGC START VIDEOL 7 RFAGCD 10 FM.LEV 8 AGC POINT 3.75 A/D VALUE : 8DH ¡ãå ¡ MOVE ¸ ¢ ¢º ADJUST RECALL : SET • Select RFAGCD item, press the volu
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ALIGNMENT INSTRUCTIONS 4-3. Vertical Size Adjustment • Select “V.SIZE” item, adjust “ V.SIZE” data value to proper vertical size as follows. 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. RD 58 GD 10 BD 65 RB 105 GB 160 BB 100 ¡ã å ¡ MOVE ¢¸ ¢º ADJUST RECALL : SET • Using volume up or volume down, adjust service adjustment data of RD/GD/BD and RB/GB/BB until a good gray scal
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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 = 27 TINT • Fixed value = 32 COLOR • Fixed value = 20 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” 11
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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. • Using the the channel up ( ¡ã ) or down ( ¡å ) duttons, select prental control. • Using the volume up ( º ¢ ), set the password Menu. • Push buttons of remote control in sequence as follows. 2 2 1
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VOLTAGE CHART 1 0 0 2 0 0 3 0 0 4 0 5 0 6 0 0 0 8 9 0 0 0 0 1 0 0 0 2 0 0 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 0 0 1 0 0 0 3 1 2 0 0 3 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 16 0.5 4.95 43 15 2.52 42 14 41 13 40 12 3.27 39 11 0.35 2.81 38 10 0.55 37 90 3.41 36 80 0.36 35 70 34 60 33 50 0.31 2.79 32 0.82 0.87 NC NC 31 5.87 7.81 30 5.52 7.56 (MONO ONLY) 1.4 1.71 29 10.92 14.55 I601 1.37 0.81 28 OFF ON 0.16 0.69 27 PIN LOC MODE 2.2 2.65 26 0.6 5.05 4.23 5.14 25 20 2.56 24 7.6
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VOLTAGE CHART 1 1 0 0 2 0 3 0 4 0 0 5 6 6 7 0 8 8 9 0 0 1 0 2 3 4 5 0 6 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 36 35 4.99 5.04 34 33 4.99 5.04 32 4.08 31 4.99 5.04 30 4.71 4.77 29 4.92 4.97 28 3.46 3.81 27 26 I701 OFF ON PIN LOC MODE 25 NC NC 24 NC NC 23 22 21 20 19 4.99 4.14 18 4.55 5.04 4.99 4.65 17 3.45 7.55 3.52 16 3.91 2.35 2.47 2.69 15 3.21 4.53 3.37 3.4 14 11.02 14.4 4.89 4.95 13 173.53 163.8 4.89 12 4.12 6.72 I801 0.49 2.22 11 OF ON 10 PIN LOC MODE 4.99 5.04 4.99 5.04 4.92 4.97 70 2.
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VOLTAGE CHART C 0 C 5 E E 0 0 B 0 C C E 0 0 E 0 B C 0 C E 0 0 E 5 0 B C 0 C 0 E 0 0 E 0 0 B 0 B 0 C 0 C 0 E 0 0 E 0 B C 0 C 5 E 0 E B 0 B C C 0 E 0 0 E 0 0 0 B 0 C 5 E 0 0 0 15 B0 Q702 5.02 0.68 B0 Q851 Q701 4.01 4.99 5.02 5.59 5.6 2.31 10.88 5.02 Q805 1.69 Q602 12.31 9.71 118.96 132.6 B0 119.38 133.1 Q804 Q404 0.4 10.1 0.68 0.66 Q760 Q403 2.89 0.59 4.9 0.07 B0 0.21 Q707 Q402 4.2 5.02 132 4.29 4.32 B0 4.92 4.95 Q704 Q401 4.9 4.93 42.28 38.6 B0 2.48 2.49 Q703 3.28 3.32 Q201 5.02 5.02 OFF ON OFF O
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WAVEFORMS 16 (8) I301 PIN7 (7) I101 PIN 46 (5) I101 PIN 44 (5) I101 PIN 40 (4) I101 PIN 23 (3) I101 PIN 21 (2) I101 PIN 20 (1) I101 PIN 19
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WAVEFORMS 17 (16) T402 PIN 200V (15) T402 PIN HEATER (14) T402 PIN 10.5V (13) T402 PIN 25.5V 1) I701 PIN 18 (12) I801 PIN 2 (10) I701 PIN 17 (9) I701 PIN 7
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WAVEFORMS . 18 T SOCKET PIN G (22) CR T SOCKET PIN R (21) CR T SOCKET PIN B (20) CR OR (19) Q403 COLLECT (18) T801 PIN 133V (17) T401 PIN H.V
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SCHEMATIC DIAGRAM 19
