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S/M No.:TCN001MEF0
Service Manual
Color Television
CHASSIS : CN-001M
Model
DTQ-14P2/P3FCM
DTQ-14P2/V1FCWM/P2SCM
DTQ-14V1/V5FCM/V1/V4SCM
U.S.A
DTQ-14V5FCNM/15U5SCM
CANADA
DTQ-14V6FCBM/FCPM/FBBM/FPPM
(AC120V)
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
Middle America
DTQ-14U1FSM/SSM/20U1FSM/SSM
(AC 110V)
DTQ-20P2SSM/15U5FSM
DTQ-20V1/V3/V4FSM
DTQ-20V1/V3/V4/V8/V9SSM
DTQ-14V1/V4/V5FSPM
DTQ-14V1/V4/V5/U1SSPM
Chi
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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-14P2/P3FCM DTQ-14P2/V1FCWM/P2SCM DTQ-14V1/V5FCM/V1/V4SCM MODEL DTQ-14V5FCNM/15U5SCM DTQ-14V6FCBM/FCPM/FBBM/FPPM DTQ-14J4FCGM/FCCM ITEMS DTQ-14V1/V4/V5FSPM DTQ-20V1/V4FSPM DTQ-20V1/V4/V5FCM DTQ-14V1/V4SSFM DTQ-20V1/V4SCM DTQ-14V1/V4/V5/U1SSPM DTQ-20V1/V3/V4/U1SSPM DTQ-20P2/P3FCM/P2SCM DTQ-20V1/V4SSFM REMARKS DTQ-14V6NBM/NPM DTQ-14V6NBPM/NPPM DTQ-15U5SSPM DTQ-14V4/20V4FCFM DTQ-14V1/V3/V5FSM DTQ-14V1/V3/V4/V5/V8/V9SSM DTQ-14U1FSM/SSM/20U1FSM/SSM DTQ-20P
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BLOCK DIAGRAM 6 A.MUTE(H) 5 LA78041 #2 D881~ D884 I805/I806 MR2520 Coupler
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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 30 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. 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. NOTE IN THE SCREEN ADJUSTMENT MODE, DONT PRESS OTHER BUTTONS EXCEPT VOLUME UP OR DOWN BUTTON. 2) FOCUS ADJUSTMENT • Turn in a loca
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ALIGNMENT INSTRUCTIONS 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. NORMAL BLACK WHITE100 WHITE60 CROSS • Using the volume up or down button, select internal cross pattern. • Select service adjustment S6 • You can see the OSD as shown in below. GEOMETRY H. PHASE 17 V. POSI 29 V. SIZE 80 NO SD POWER OFF YES VSC 7 V L
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ALIGNMENT INSTRUCTIONS 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 127 BB 100 MOVE 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 scale with normal whites is obtained.ALIGNMENT INSTRUCTIONS • Press the DISPLAY button to memorize the data. 6) DIGITAL PRESET(D.P) ADJ
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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 MODE MODE LOC PIN LOC PIN 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 MODE LOC PIN 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 MODE LOC P
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VOLTAGE CHART MODE MODE LOC PIN LOC PIN 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 MODE LOC PIN 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
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VOLTAGE CHART MODE MODE LOC PIN LOC PIN ON OFF ON OFF Q201 C 5.03 4.95 Q703 C 5.04 4.17 E 3.29 3.26 E 0.44 0 B 2.51 2.47 B 1.06 0 Q401 C -3.63 35.55 Q704 C 5 4.92 E 0 0 E 4.97 4.89 B 0.35 0 B 4.35 4.28 Q402 C 130.2 102.3 Q707 C 5.05 4.98 E 0 0 E 0.18 4.19 B 0 0 B 0.06 4.89 Q404 C 10.23 0 Q804 C 0 0 E 0 0 E 132.6 102.2 B 0 0 B 132.2 102.2 Q501 C 0 0 Q805 C 12.12 7.19 E 3.59 0 E 5.03 4.96 B 4.53 0 B 5.63 5.59 Q575 C -0.1 0 Q806 C 5.13 0 E 10 0 E 5.05 4.98 B 10.22 0 B 4.46 5.45 Q653 C 6.52 0 Q871 C
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WAVEFORMS (1) I101 PIN 19 (2) I101 PIN 20 V:1V/div V:1V/div H:25us/div H:25us/div (3) I101 PIN 21 (4) I101 PIN 23 V:1V/div V:500mV/div H:25us/div H:5ms/div (5) I101 PIN 40 (6) I101 PIN 44 V:500mV/div V:500mV/div H:25us/div H:25us/div (7) I101 PIN 46 (8) I101 PIN 6 V:500mV/div V:10V/div H:25us/div H:5ms/div 16
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WAVEFORMS (9) I701 PIN 7 (10) I101 PIN 17 V:1V/div V:2V/div H:50us/div H:25us/div (11) I701 PIN 18 (12) I801 PIN 7 V:20V/div V:100V/div H:25us/div H:10us/div (13) T402 PIN 25.5V (14) T402 PIN 10.5V V:100V/div V:50V/div H:25us/div H:25us/div (15) T402 PIN HEATER (16) T402 PIN 200V V:10V/div V:100V/div H:25us/div H:25us/div 17
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WAVEFORMS (17) T401 PIN H.V (18) T801 PIN 133V V:100V/div V:100V/div H:25us/div H:10us/div (19) Q401 COLLECTOR (20) CRT SOCKET PIN B V:5V/div V:50V/div H:25us/div H:25us/div (21) CRT SOCKET PIN R (22) CRT SOCKET PIN G V:50V/div V:50V/div H:25us/div H:25us/div 18
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SCHEMATIC DIAGRAM 19
