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Durabrand HPS-2971 Service Manual
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Durabrand HPS-2971 Service Manual

Durabrand HPS-2971 Service Manual

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Service Manual

Model HPS-2971
Customer: Wal Mart
CODE: 1.01.72420.57
___________________________
Approved Signature

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Summary of Contents for Durabrand HPS-2971

  • Page 1: Service Manual

    Service Manual Model HPS-2971 Customer: Wal Mart CODE: 1.01.72420.57 ___________________________ Approved Signature...

  • Page 2: Table Of Contents

    HPS-2971 INDEX PRODUCT SPECIFICATION PACKAGING BOX TECHNICAL SPECIFICATION CALIBRATION SCRIPT MATERIAL LIST ELECTRICAL SCHEME MAIN AND REMOTE CONTROL PCB SILKTOP AND SOLDERS MAIN PCB REMOTE CONTROL PCB EXPLODED VIEW BLOCK DIAGRAM...
  • Page 3 HPS-2971 Esc. 1/4 gabinete frontal= impressão GABINETE FRONTAL 1.86.90200.90 (ABS R PR) PRETO Fl. 2/4 mec. 1.57.72420.08 1.86.02063.99 (HI PS 478 DOW) alternativo 1.87.33670.00 inj. 1.57.72420.09 1.86.96123.08 (PIG CZ MÉDIO) acab. 1.57.72420.07 TECLA POWER SAP SAP STEREO mec. 1.67.72420.02 inj. 1.67.72420.07 acab.
  • Page 4 HPS-2971 Esc. 1/4 GABINETE TRASEIRO ETIQUETA IDENTIFICAÇÃO Fl. 3/4 mec. 1.57.72466.01 inj. 1.57.72466.02 ETQ. DE IDENTIFICAÇÃO acab. 1.06.72420.12 ATENCIÓN ATENCIÓN NO ABRA, RIESGO DE CHOQUE ELÉCTRICO. NO ABRA, RIESGO DE CHOQUE ELÉCTRICO. CAUTION CAUTION RISK OF ELECTRIC SHOCK. DO NOT OPEN.
  • Page 5 RC-201 (1.02.72357.90) Esc. 1/1 GABINETE SUP. CR mec. 1.57.72254.05 inj. 1.57.72357.05 acab. 1.57.72357.06 GABINETE INF. CR mec. 1.57.52181.04 acab. 1.57.72254.08 TAMPA PORTA PILHAS mec. 1.57.52181.05 acab. 1.57.72254.09 TECLADO BORRACHA acab. 1.77.72357.02 (import.) MUTE MUTE ON/OFF ON/OFF P.SKIP P.SKIP P.CHANNEL P.CHANNEL A U T O I M AG E A U T O I M AG E Impressão preto...
  • Page 7 HPS-2971 3. TECHINICAL SPECIFICATION Procedure to check up color TV electrical parameters Audio 3.1.1 Output power at 10% THD Connection through external video and audio input a) TV setup in “PP” condition. b) Connect a color bar generator (PAL-M system) to video input.
  • Page 8 HPS-2971 3.1.3 Audio frequency response in TV’s without tone control a) TV adjustment condition: ü Balance center ü Bass center ü Treble center b) Connect a color bar generator (PAL-M system) to video-in. c) Connect to the audio input TV - an audio generator adjust to 500 mVac level, and sine wave 1kHz.
  • Page 9 HPS-2971 3.1.5 Channel separation in Stereo reception for the stereo television set a) TV setup in PP condition. b) Apply a 60dBmV signal (frequency and channel factory defined) with 88% video modulation and audio stereo carrier modulation within the standard “MTS”...
  • Page 10 HPS-2971 f) Active the SAP function in the Test Television. g) Read Vac at the AC volt-distortion-meter. h) Repeat all above procedures, connecting the volt-distortion-meter at the Right channel Minimum Nominal Maximum Unit Output Level 450,00 500,00 550,00 Distortion (THD)
  • Page 11 HPS-2971 117V “PP” 135,00 117V Stand-By 1,50 234V “PP” 135,00 234V Stand-By 1,50 3.2.2 Main Power Supply a) Connect the TV set under test to 110Vac/60Hz line. b) Turn on the TV and apply a 60dBµV signal (frequency and channel defined by factory) 88% modulated with white pattern and audio signal with 400Hz frequency modulated in FM with ±25kHz of deviation.
  • Page 12 HPS-2971 “PP” 100V +B (Cathode of D807) 130,50 132,50 134,50 “PP” 100V Áudio (Cahtode of D808) 20,00 22,00 24,00 “PP” 100V Tuner (Cathode of DZ101) 30,00 33,00 36,00 “PP” 100V +5V (Emitter of Q101) 4,50 5,00 5,50 “PP” 100V +3V3 (Emitter of Q804)
  • Page 13 HPS-2971 Condition Minimum Nominal Maximum Unit min. 28,50 30,50 32,50 =1,70mA 26,50 28,50 30,50 3.2.6 WHITSTANDING VOLTAGE Adjust the HI_POT equipment to 1500 Vac voltage, and the desired test current, in accordance with the below specification table. When the TV set have a power switch, make sure that this switch stay in the ON mode.
  • Page 14 HPS-2971 WHEIGHT (PAL-N) 16,20 16,50 16,80 Blocks HEIGHT (PAL-M) 12,70 13,00 13,30 Blocks WHEIGHT (PAL-M) 16,70 17,00 17,30 Blocks 3.3.2 Frame centralization Preparation: a) Connect the TV receiver under test to a 117 V line. Turn On the TV and position the bright and contrast control to the maximum, and the saturation and volume controls to the minimum position.
  • Page 15 HPS-2971 3.3.3 FRAME ASPECT RATIO a) Connect the receiver under test to a 117V line. Turn on the TV and adjust bright and contrast control to max. position, saturation and volume to min. Position. Wait for the heat period. b) Apply to the antenna input a 60dBµV level signal with 88% modulated...
  • Page 16 HPS-2971 M = An/15. Horizontal deviation between major blocks (DH Read first the 15 blocks wide (from b1 to b15) and select the biggest read ) for calculate the deviation: máx Minor Horizontal deviation between blocks (DH Read first the 15 blocks wide (from b1 to b15) and select the smallest read ) for calculate the deviation: mín...
  • Page 17 HPS-2971 3.3.5 Vertical Linearity a) Connect the receiver to a 117V line Turn on the TV and adjust bright and contrast control to max. position, saturation and volume to min. Position. Wait for the heat period (please see the specification for this model).
  • Page 18 HPS-2971 3.3.6 Pin-Cushion & Shape of Raster a) Connect the receiver to a 117V line. Turn on the TV and adjust bright and contrast control to max. position, saturation and volume to min. Position. Wait for the heat period (please see the specification for this model).
  • Page 19 HPS-2971 g) At a distance of 5 times the height of the screen, observe that no color dirty may appears. h) Repeat this procedures now utilizing a red pattern. Note: ü If the receiver is moved during the test procedure, always degauss again the...
  • Page 20 HPS-2971 Point X, Y LIMITS (mm) BG, RG b, c d, e f, g, h, j f’, g', h', j' k, l, m, n s, t, u, v Video 3.6.1 Sensibility and Signal /Noise Rate a) Adjust the TV to a “PP” condition.
  • Page 21 HPS-2971 3.6.3 Sensibilidade de recepção de Closed Caption a) Adjust the TV to a “PP” condition. b) Apply a 60dBµV signal (frequency and channel defined by factory) 88% modulated with color bars (Pal-M) with Closed Caption signal. c) Observe on the TV screen in test and reduce the generator output level until the minimum value that be possible identify the characters of the C.C...

  • Page 22: Calibration Script

    HPS-2971 4. CALIBRATION SCRIPT Note: This guide is only an orientation and, for some items, may be adapted by Factory Engineering to best conform to the productive process. INTRODUCTION Note: ü It is necessary to pre-heat the TV during 15 minutes, before its calibration.
  • Page 23 HPS-2971 Important recommendations 4.1.1 Before beginning the adjustments, the TV set should be a pre-heated during at least 15 minutes. 4.1.2 The positioning of the TV set should obey the magnetic parameters of South America that it is -120 vertical mG. In the practice, this is gotten with a relative precision, positioning the TV set with the face (screen) of the CRT pointing to the geographical East.
  • Page 24 HPS-2971 *** This registers must be changed to default value. Register Default Name Limits Description number WBlk 00 255 Timing of ‘wide blanking’ PWLi 00 63 Peak white limiting OSIF 00 63 Off-set IF demodulator*** 00 63 Offset vertical*** 00 63 Text area start***...
  • Page 25 HPS-2971 Register Default Name Limits Description number 00 63 Balance 00 63 Bass 00 63 Treble 00 63 Subwoofer Stereo alignment data for wideband 00 31 expander Stereo alignment data for spectral 00 31 expander 00 03 Not used 00 03 Attack time at AVL...
  • Page 26 HPS-2971 Please check register values before modifications. Register Name Limits Description Default number STBY 00 03 Standby IDET 00 02 Mute action 00 00 Initialization 00 00 Screen adjust Register 96 (STBY) Register 97 (IDET) Value Description Value Description The audio/video mute...
  • Page 27 HPS-2971 Geometry of the Image a) Using the PM - 5515 generator, apply the crosshatch pattern with circle. b) Adjust the bellow items, until obtaining the best circle symmetry and positioning, as well as the minor image geometric distortion: ü Use the register (VSl) to adjust the Vertical slope;...
  • Page 28 HPS-2971 Pwuc Register: Pwlc Register: TC Register:...
  • Page 29 HPS-2971 White balance Note: ü The cut point doesn’t need adjustment, because it’s automatically made by the IC101. ü The white adjustment is already pre-adjusted and incised in the IC101 and, thus, its adjustment is not necessary. Otherwise, if it is necessary to change the temperature of the white pattern, proceed in the following way: a) Enter in the service mode.
  • Page 30 HPS-2971 b) Press VOLØ or ×VOL to select and adjust the screen control localized on the FBT, until the horizontal line be slightly visible on the screen center. AGC adjustment Mode 1: ü Apply a PHILIPS pattern with 60dBµV of intensity and adjust the delay...

  • Page 31: Material List

    HPS-2971 5. MATERIAL LIST MAIN PCB CAPACITORS CODE DESCRIPTION POSITION 1330104106 C.POLYEMT 100KPF/63V K C807 1330104106 C.POLYEMT 100KPF/63V K C812 1330104421 C.POLYMET 100KPF/250V J C404 1330104421 C.POLYMET 100KPF/250V J C904 1330104421 C.POLYMET 100KPF/250V J C907 1330104421 C.POLYMET 100KPF/250V J C911 1330224122 C.POLYMET 220KPF/63V K...
  • Page 32 HPS-2971 CODE DESCRIPTION POSITION 1380101224 ELCO 100UF/16V M 5X11MM C705 1380101228 ELCO 100UF/16V M 6,3x11MM C705 1380101224 ELCO 100UF/16V M 5X11MM C706 1380101228 ELCO 100UF/16V M 6,3x11MM C706 1380101224 ELCO 100UF/16V M 5X11MM C720 1380101228 ELCO 100UF/16V M 6,3x11MM C720...
  • Page 33 HPS-2971 CODE DESCRIPTION POSITION 1380479622 ELCO 4,7UF/100V M 5x11mm C602 1380479622 ELCO 4,7UF/100V M 5x11mm C629 1380479522 ELCO 4,7UF/50V M 5X11MM C602 1380479522 ELCO 4,7UF/50V M 5X11MM C629 1380479622 ELCO 4,7UF/100V M 5x11mm C626 1380479622 ELCO 4,7UF/100V M 5x11mm C630...
  • Page 34 HPS-2971 CODE DESCRIPTION POSITION 1492010400 CAP.SMD X7R 100KPF/16V K 0603 C603 1492010400 CAP.SMD X7R 100KPF/16V K 0603 C622 1492010400 CAP.SMD X7R 100KPF/16V K 0603 C721 1492010400 CAP.SMD X7R 100KPF/16V K 0603 C740 1492010400 CAP.SMD X7R 100KPF/16V K 0603 C765 1492012200 CAP.SMD X7R 1,2KPF/50V K 0603...
  • Page 35 HPS-2971 CODE DESCRIPTION POSITION 1291102318 ELCO 1000UF/16V M 10X16MM C660 1291102317 ELCO 1000UF/16V M 10X16MM C660 1291102419 ELCO 1000UF/25V M 10X20MM C868 1291220017 ELCO 22UF/250V M 10X20MM C420 1291220017 ELCO 22UF/250V M 10X20MM C902 1292471058 ELCO 470UF/385V M 35X40MM C816...
  • Page 36 HPS-2971 CODE DESCRIPTION POSITION 1183510292 RES.METAL FILME 1/2W 1K 5% N R631 1183510292 RES.METAL FILME 1/2W 1K 5% N R647 1183510292 RES.METAL FILME 1/2W 1K 5% N R770 1183510292 RES.METAL FILME 1/2W 1K 5% N R809 1183510292 RES.METAL FILME 1/2W 1K 5% N...
  • Page 37 HPS-2971 CODE DESCRIPTION POSITION 1183582292 RES.METAL FILME 1/2W 8,2K 5% N R405 1502500003 RES.SMD 0R 5% 0603 R705 1502510103 RES.SMD 100R 5% 0603 R103 1502510103 RES.SMD 100R 5% 0603 R104 1502510103 RES.SMD 100R 5% 0603 R209 1502510103 RES.SMD 100R 5% 0603...
  • Page 38 HPS-2971 CODE DESCRIPTION POSITION 1502522203 RES.SMD 2,2K 5% 0603 R626 1502522203 RES.SMD 2,2K 5% 0603 R636 1502522203 RES.SMD 2,2K 5% 0603 R703 1502522203 RES.SMD 2,2K 5% 0603 R704 1502522203 RES.SMD 2,2K 5% 0603 R749 1502522203 RES.SMD 2,2K 5% 0603 R837 1502522303 RES.SMD 22K 5% 0603...
  • Page 39 HPS-2971 CODE DESCRIPTION POSITION 1185515851 RES.METAL FILME 1W 0,15R 5% V R813 1125709500 NTC 10R TP10D15LKBEGMNR NTC801 1125707400 RES.COEF.NEG.NTC 10R NTC801 1184510025 RES.M.FILME 2W 10R 5% D.KINK R420 1184510045 RES.METAL FILM 2W 10R 5% N MG R420 1184510025 RES.M.FILME 2W 10R 5% D.KINK...
  • Page 40 HPS-2971 CODE DESCRIPTION POSITION 1700100015 TRANSISTOR SMD BC846B Q605 1700100015 TRANSISTOR SMD BC846B Q606 1700100015 TRANSISTOR SMD BC846B Q807 1700100015 TRANSISTOR SMD BC846B Q808 1139999440 TRANSISTOR KSD1408-YTU Q406 1139999188 TRANSISTOR 2SD2061E/F Q406 1139999392 TRANSISTOR BU2520DX-ON5126 Q402 1139999397 TRANSISTOR 2SC-5280 Q402 1139999468 TRANS.POWER MOSFET STP6NK90ZFP...
  • Page 41 HPS-2971 CODE DESCRIPTION POSITION 1415180801 DIODO RETIFICADOR SK 4F1/06 D410 1415180901 DIODO RETIFICADOR SK107 D301 1410430015 DIODO RETIFICADOR 1N4004 D301 1415180901 DIODO RETIFICADOR SK107 D816 1410430015 DIODO RETIFICADOR 1N4004 D816 1415180901 DIODO RETIFICADOR SK107 D817 1410430015 DIODO RETIFICADOR 1N4004 D817...
  • Page 42 HPS-2971 MISCELLANEOUS CODE DESCRIPTION POSITION 1027248201 PCI INS.MANUAL 1027242012 PCI INS.IA/SMD 1107242004 PCI CONJUNTO 1479906734 INDUTOR FIXO 2,2UH K AXIAL L703 1479906734 INDUTOR FIXO 2,2UH K AXIAL L704 1479907634 INDUTOR FIXO 5,6UH K AXIAL L705 1479907634 INDUTOR FIXO 5,6UH K AXIAL...
  • Page 43 HPS-2971 CODE DESCRIPTION POSITION 1641000167 CABO MON.1VC/TER.18AWG MR 320 1271206100 RECEPTOR IR 36KHZ TSOP34836 RM701 1271205900 RECEPTO IR 36KHZ TSOP1836SS3V3 RM701 1271206300 RECEPTOR IR 36KHZ KSM-602LM2D RM701 1271205900 RECEPTO IR 36KHZ TSOP1836SS3V3 RM701 1271505600 SIN 181CH UV1336B/AFS4 MK4 USA TU101...
  • Page 44 ETIQ.ADES.N.SERIE C/5 1738001100 MALHA DE ATERRAMENTO 5(E8) 1677234201 EMBLEMA DURABRAND 1510454007 ALTO FALANTE 2x5" 7-10W 8R 2(G5.E3) 1067242013 MANUAL DE INSTRUCOES HPS-2971 1850120205 MANTA POLIPRO.EXP.1250x550x0,7 1769900122 SACO PLASTICO 250X400X0,05 AD 1769900058 SACO PLASTICO 120X120X0,05MM A 1886510100 GRAMPO 35 X 15 1886000100 PILHA PEQUENA AA 1.5V...
  • Page 45 HPS-2971 REMOTE CONTROL PCB CODE DESCRIPTION POSITION 1027235790 CONTROLE REMOTO MONTADO RC201 1027226304 PCI CONTROLE REM.MAN.MONT 1027226314 PCI CONTROLE REM.SMD/AUT MONT 1107226331 PCI CONTROLE REMOTO (15PCS) 1710100137 I.C.SMD PT1140/PT0249 1710100088 I.C. SMD UPD-64GS492-E2 1700100014 TRANSISTOR SMD BC817/25 1502518903 RES.SMD 1,8R 5% 0603 1502522902 RES.SMD 2,2R 5% 0805...

  • Page 46: Electrical Scheme

    HPS-2971 6. ELECTRICAL SCHEME 6.1 MAIN AND REMOTE CONTROL PCB 7. SILKTOPS AND SOLDERS 7.1 MAIN PCB 7.2 REMOTE CONTROL PCB 8. EXPLODED VIEW 9. BLOCK DIAGRAM...
  • Page 47 Q401 KSP42TA KSP42TA 390pF/500V 390pF/500V 4,7KpF/2KV 4,7KpF/2KV SK-3G08 SK-3G08 C422 C422 L405 L405 INCLUSAO DE MODELO: HPS2971; HPS 2971 DURABRAND;TO 2971 INCLUSAO DE MODELO: HPS2971; HPS 2971 DURABRAND;TO 2971 KEILA KEILA 02.07.04 02.07.04 VR802 VR802 C802 C802 350uH 350uH ALT.

  • Page 48: Main Pcb

    R812 C843 FB801 R814 CN802 C846 C420 D416 L807 VR802 R439 C833 Q801 L405 C419 D808 D417 D812 D804 CN401A R852 C867 C816 C802 C842 Q406 R850 D802 F801 R849 R851 C870 L400 205V T4AL 250V R854 MAIN PCB HPS-2971...
  • Page 49 C837 R627 C710 R714 C709 C760 R200 R604 C765 R743 R715 R842 C656 R723 R605 R201 R310 R771 IC701 C316 C310 R418 C312 Q301 R301 Q405 C308 R417 R843 R840 R848 R855 R845 Q808 Q407 C426 C842 MAIN PCB HPS-2971...

  • Page 50: Remote Control Pcb

    LD01 POWER MUTE PSKIP AUTO P.CH OSD/OUT ST/SAP MENU SLEEP TR01 REMOTE CONTROL PCB HPS-2971...
  • Page 51 R01 TR01 REMOTE CONTROL PCB HPS-2971...
  • Page 53 IC301 TDA8177 TU101 TUNER VERTICAL OUTPUT VERTICAL DEFLECTION CURRENT IC901 TDA6106 I²C BUS RGB AMP IR RC SENSOR IC101 TDA9573 - µCONTROLLER -15V AUDIO / VIDEO IC901 IF PROCESSOR AUX INPUT TDA6106 Y/C PROCESSOR +15V RGB AMP V901 SYNC PROCESSOR I²C BUS IC701 STANDBY_L...