Durabrand DTV1307 Service Manual
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Durabrand DTV1307 Service Manual

Color television receiver
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SERVICE MANUAL
COLOR TELEVISION RECEIVER
DTV1307
All the specifications and features are subject to change without notice.
S/M CODE NO. M31G01VASM
ORIGINAL
DATE OF ISSUE 03/2007
VERSION (A)

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Summary of Contents for Durabrand DTV1307

  • Page 1 SERVICE MANUAL COLOR TELEVISION RECEIVER DTV1307 All the specifications and features are subject to change without notice. S/M CODE NO. M31G01VASM ORIGINAL DATE OF ISSUE 03/2007 VERSION (A)

  • Page 2: Important Service Safety Information

    IMPORTANT SERVICE SAFETY INFORMATION Operating the receiver outside of its cabinet or with its The picture tube used in this receiver employs integral back removed involves a shock hazard. Work on implosion protection. Replace with a tube of the same these models should only be performed by those who type number for continued safety.

  • Page 3: About Lead Free Solder (Pbf)

    ABOUT LEAD FREE SOLDER (PbF) Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a PbF printing on the PCB. (Please refer to figures.) Caution: • Pb free solder has a higher melting point than standard solder; Typically the melting point is 86°F~104°F(30°C~40°C) higher.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS IMPORTANT SERVICE SAFETY INFORMATION ..................A1-1 ABOUT LEAD FREE SOLDER (PbF)......................A1-2 TABLE OF CONENTS............................. A2-1 GENERAL SPECIFICATIONS ........................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP ......................... B1-1 2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ..............B2-1, B2-2 SERVICE MODE LIST .............................

  • Page 5: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 13 inch / 335.4mmV System CRT Type Normal Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Display Capability 480i Speaker 1Speaker Position Bottom Size 3 Inch Impedance Sound Output 1.0 W 10%(Typical) NTSC3.58+4.43 /PAL60Hz Tuning Broadcasting System Analog...
  • Page 6 GENERAL SPECIFICATIONS Remote Unit RC-NJ Control Glow in Dark Remocon Format Remocon Format Orion Custom Code 86-05 h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys 26 Keys Keys Power CH Up/MENU Cursor Up CH Down/MENU Cursor Down Volume Up/MENU Cursor Right Volume Down/MENU Cursor Left Closed Caption...
  • Page 7 GENERAL SPECIFICATIONS G-10 Features Picture Brightness, Contrast, Color, Tint, Sharpness Mode (Picture preference) Color Temperature Audio Tone Control (Bass, Treble, Balance) Stable Sound SRS WOW(SRS 3D/Focus/Tru Bass) Variable Audio Out Tuning TV/CABLE CH Program Add/ Delete Label CH Label Video Label Favorite CH Lock Hotel Lock...
  • Page 8 GENERAL SPECIFICATIONS G-11 Accessories Owner's Manual Language English / Spanish W/ Warranty Remote Control Unit Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Station List Important Safety Instruction Dew/AHC Caution Sheet AC Plug Adapter...
  • Page 9 GENERAL SPECIFICATIONS G-13 Set Size Approx. W x D x H (mm) 362 x 360 x 320.5 G-14 Weight Net (Approx.) 9.5 kg ( 77.2 lbs) Gross (Approx.) 11.0kg (83.8 lbs) G-15 Carton Master Carton Content ---- Sets Material Dimensions W x D x H(mm) x -- x --...

  • Page 10: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 1. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 11: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) REMOVAL NOTE Put Masking Tape (cotton tape) around the Flat Pack-...
  • Page 12 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 2-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 13: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 2 seconds. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.
  • Page 14 WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. INIT Table 1 CONFIRMATION OF INITIAL DATA Enter DATA SET mode by setting VOLUME to minimum.

  • Page 15: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS BEFORE MAKING ELECTRICAL 2. BASIC ADJUSTMENTS ADJUSTMENTS 2-1: CUT OFF Read and perform these adjustments when repairing the Adjust the unit to the following settings. circuits or replacing electrical parts or PCB assemblies. R.DRIVE=64, B.DRIVE=64, R.BIAS=128, G.BIAS=128, B.BIAS=128, BRI.CENT=122, CONT.MAX=100. CAUTION Place the set in Aging Test for more than 15 minutes.
  • Page 16 ELECTRICAL ADJUSTMENTS 2-8: OSD HORIZONTAL Activate the adjustment mode display of Fig. 1-1. Press the VOL.UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) "A" Fig. 2-1 00 OSD H Fig.
  • Page 17 ELECTRICAL ADJUSTMENTS PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator. minutes before performing the following adjustments.
  • Page 18 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB CP803B CP806 TP022 TP023 J801 CP802B CP801 CP803A FB401 TU001 TP401 CP502 S501A CD501 S501B OS101 CD101A CD101B J1001 SPEAKER J702 J703 CD101A TV MT PCB...

  • Page 19: Troubleshooting Guide

    TROUBLESHOOTING GUIDE NO POWER Is the voltage at the point (A) Is the voltage at pin G Check Q503 and associated circuit. in the Figure DC144V ? of Q502 DC5V ? Check Q502 and associated circuit. T501 Broken wire of R511 or short circuit Is the voltage at the point (B) in the Figure DC164V ? on GND.
  • Page 20 TROUBLESHOOTING GUIDE NO RASTER Does the RASTER Is the voltage of pin 4 of Check the output circuit and appear at maximum CP803 DC180V ? associated circuit. BRIGHT/CONTRAST ? Check the 180V line. Is the high voltage of Is the heater voltage at Contact defects of CRT or CRT ANODE 27KV~28KV ? pin 4 of J801 AC6.4V ?
  • Page 21 TROUBLESHOOTING GUIDE NO COLOR Are the waveform at pins 3, Defect of CRT or contact defects 7 and 9 of J801 normal ? of J801. Are the waveform at pins 3, Check the output circuit and 4 and 5 of CP802 normal ? associated circuit.
  • Page 22 TROUBLESHOOTING GUIDE NO VERTICAL Is the waveform at pin Check DY. 5 of CP401 normal ? Is the waveform at pin Check the circuit from pin 5 of 5 of IC401 normal ? IC401 to CP401. Is the waveform at pin 7 Is the voltage at pins2 Check IC401 and check associated of IC401 normal ?
  • Page 23 TROUBLESHOOTING GUIDE NO SOUND Is sound setting appropriate ? Is the waveform at pins 6 Check speaker and headphone jack. and 8 of IC1001? Is the AUDIO signal at pin Check IC7301 and associated circuit . 7 of IC7301? Is the AUDIO signal input Check the pins 2, 4 of IC701 and at pin 3 of IC7301? associated circuit .

  • Page 24: Ic Descripion

    IC DESCRIPTION OEC7177A (IC102) Pin name Function Unused(LOW is output). The POWER terminal outputs Hi-z at the standby. STANDBY_H It outputs LOW in front of 100ms that outputs HIGH. It outputs Hi-z after 5s that outputs LOW. It's an adjustment terminal of the volume. VOLUME_PWM It's output by PWM.
  • Page 25 IC DESCRIPTION OEC7177A (IC102) Pin name Function 8.7VREG_OUT Power output terminal for 8.7V Regulator in IC. HVCO_F/B Feedback terminal for horizntal VCO. AFC_FILTER Filter terminal for horizntal AFC1 circuit. DEF_GND GND. FBP_IN FBP Input terminal. H OUT Output terminal for horizontal drive pulse. DEF_VCC Power input terminal.
  • Page 26 IC DESCRIPTION OEC7177A (IC102) Pin name Function GND. FILT Filter connection terminal for clock. AT +5V. Unused(LOW is output). Input terminal for power failure detection. When LOW is input, the power failure processing is done. POWER_FAIL The POWER FAIL detection is not done at the time of the POWER OFF (The terminal "STANDBY-H" outputs Hi-z).

  • Page 27: Semiconductor Base Connections

    SEMICONDUCTOR BASE CONNECTIONS DIODE 1N4937 02DZ2.2-X(TH3ORION 1N4005-EIC 11E1-EIC 1SS355 TE-17 1SS133T-77 21DQ09N-TA2B1 AU02A-EIC RU2AM-EIC MTZJ10B T-77 MTZJ18B T-77 MTZJ3.3B T-77 MTZJ3.6B T-77 MTZJ30B T-77 MTZJ5.1B T-77 MTZJ5.6B T-77 MTZJ6.2B T-77 MTZJ8.2B T-77 MTZJ9.1B T-77 SR290-F OEC7177A HY5DU561622ETP-D43 AN7513 DSV321SV CS4348-CZZR R8A66953FP SN74LV4053APWR NJM2534V(TE2)

  • Page 28: Micon/Chroma

    R. SIGNAL G. SIGNAL MICON/CHROMA BLOCK DIAGRAM B. SIGNAL DEFLECTION SIGNAL AUDIO SIGNAL TUNER VIDEO SIGNAL MICON/CHROMA IC102 OEC7177A FB401 J801 Q803 RCA JACK 35 CVBS_IN1 BLUE OUT B OUT J702 Q802 18 3.58_XTAL X102 G OUT GREEN OUT 3.579545MHz RCA JACK V801 SOUND AMP...

  • Page 29: Digital Module

    DIGITAL MODULE BLOCK DIAGRAM +3.3V MD 16 AA 21 2Mx16 NOR FLASH X2401 IC2403 25MHz K8D3216UTC-PI07 27MHz CP2402 +3.3V IC2404 DSV321SV TRST_N DTV ASIC IC2401 SDDQ 256Mbit DDR SDSAM ASEBRKAK_N R8A66953FP IC2402 SDA 13 HY5DU561622ETP-D43 RESET_N +2.5V FLASH_WP +2.5V ASEMDO +3.3V +3.3V +10V...

  • Page 30: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS TV MT/CRT (INSERTED PARTS) SOLDER SIDE CD501 COMPONENTS SEEINSIDE BACK COVER. PIECE CRITIQUE VOIR AU VERSO. SERVICE INFORMATION ABOUT CRITICAL INFORMATIONPOUR SERVICE DES RISK OF FIRE - REPLACE AS MARKED. CAUTION ATTENTION C504 L501 R503 R519 R520 S501B Q503 D503...
  • Page 31 PRINTED CIRCUIT BOARDS TV MT/CRT (CHIP MOUNTED PARTS) SOLDER SIDE CMF103A R113 R004 R150 R005 IC7301 IC101 Q002 IC005 R7309 R133 Q7302 Q7301 R137 R106 R7305 R7306 R7308 Q003 R7310 R546 IC001 Q509 R419 R104 R118 Q1001 Q504 R814 R809 R811 CCF078A...

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