Sanyo DS31520 Service Manual

Also see for DS31520: Owner's manual Owner's manual

Contents

Sanyo DS31520 Service Manual Manual pdf 25 page image

CAPACITOR AND RESISTOR CODE CHARTCAPACITOR (Example)500 C K 1500 B D ........................... ±0.5pFT ............................ +50% –10%J ............................ ±5%K ........................... ±10%M ........................... ±20%N ........................... ±30%Characteristics P ........................... +100% – 0%Value code Z ........................... +80% –20%Tolerance code C ........................... ±0.25pFMaterial code C ........................... CeramicVoltage rating E ........................... ElectrolyticF ........................... PolyesterN ........................... PolypropyleneT ............................ TantalumK ........................... CeramicH ........................... MT-CompositeP ........................... NP. ElectrolyticM ........................... MT-PolypropyleneRESISTOR (Example)6 Y K 4.7 D ........................... ±0.5%F ........................... ±1%G ........................... ±2%J ............................ ±5%Value code K ........................... ±10%Tolerance code M ........................... ±20%Material code F ............................ FusibleWattage rating N ........................... Metalized CarbonS ........................... Oxide MetalizedY ........................... Wire WoundC ........................... SolidD ........................... Carbon FilmW .......................... Wire Wound— 25 — — 26 — — 28 —— 27 —FOR CONTINUED PROTECTION AGAINSTA RISK OF FIRE, REPLACE ONLY WITHTHE SAME TYPE 4A, 125V FUSE.ATTENTION: POUR MAINTENIR LA PROTECTIONCONTRE LES RISQUES D' INCENDIE UTILISER UNFUSIBLE DE RECHANGE DE MEME TYPE 4A, 125V.CAUTION4A 125VBLOCK DIAGRAM17424140392529327OSD (R)OSD (G)OSD (B)OSD (BLK)RESETAFT S-CURVEPOWER FAILPOWERON/OFFSTANDBY MODEALWAYS +5VCONTROLQ693,Q695Q635OVERLOADPROTECT.D612PHOTOCOUPLERIC601POWERREG.Q68112V SWDRIVEIC6815V REG.RESETD601-D604FULL WAVERECTIFIERQ605ERR.AMP.Q604OSCQ601SW.T601CONVERTERTRANS.LF601LINEFILTERPS601POSISTORRL601RELAYL901DEGAUSINGCOILAC120V60HzF601ACFUSEC601+12VD627+16V+130VD621 D694D624D6254A 125V+12VQ62712V SW.Y CV ININ SELECTOUT SELECT12441314158OSDSW.RGBOUTCONTBRITECOLORDEMODSHARPBPABLACKSTRETCHDELAYLINESYNCSEP.HORIZ.DRIVERVIDEODET.FMDET.BUSINTERFACEIC101SIGNAL PROCESSSDA 9SCL 1078/7911Y 52C 5449Q135BUFFERHVBEAMVOLTAGEDETECT.ABL-INMUTES1-SWS2-SWMAIN AV 1/2RF AGC 77ACLX141SAWFILTERINT. VIDEOSIFA101UHF/VHF TUNERWITH PLL& BAND SWIFAGCIC802EEPROM67A1901RC PRE-AMPSW1901-1906CONTROL KEYSRF AGCBUS SCLBUS SDAIIC SCLIIC SDARC INKEY INX INX OUT2834323331109192030131138123521IC801CPUWITHCAPTIONDECODERX 801ANTC809C8085IC501VERT.OUTPUTQ401HORIZ.DRIVET401H-DRIVETRANS.Q402HORIZ.OUTPUTHOLD DOWNDETECT.3040171819HOLD DOWNT402HORIZ.OUTPUTTRANS.H.V.AFCDEFLECTIONYOKEABLFOCUSSCREENHEATERV +B56/79341VH2H-PULSEABLQ721Q711Q701-R OUT-G OUT-B OUTGRBQ901PIX TUBED483+26V(7V)D429 D428(16V)R428g7samANODE LEAKDETECT.L164X161755636 V-S37 H-S33264.5MHzSOUNDTRAPIC002AUDIOAMP.762 31 (L)(R)AUDIO OUT (R)AUDIO OUT (L)SP902SPEAKER(R)SP901SPEAKER(L)MUTEHQ001+16V433938AV 2 RAV 2 L373613IC3401MTS DECODERA/V 2 INVIDEO INAUDIO IN (L)AUDIO IN (R)D482D481200VVIDEO5LR56SDLSCLSIDEPCCQ202BUFFERK1002RLQ4869V REG.Q4905V REG.5VALWAYSB912VB49V1032 5VB9H-S V-SQ688RELAYDRIVER5VB6D801Q208CAPVIDEOOUTVIDEOSW.C1/C2Q831RESET7 SC3212 V2/Y2INT. VIDEOS CLOCK 3.5816 141591COMBFILTERC YC1/C2H PULSEQ00513 V2 IN12 Y2 IN3 C2 INHHHLLLS2-SW 11V2/Y2 14MAIN AV 1/2 9C1/C2 4S1-SW 10IC1001SELECT V/Y + C1/C2YY2 INC2 INS2 SWCS2 IND508MODEL DS31520 Chassis No. 31520-00SCHEMATIC DIAGRAMSSERVICE NOTES:1. When replacing parts on circuit boards, clamp the lead wires to terminals before soldering.2. When replacing high wattage resistors on circuit board, keep the resistor body 10 mm (3/8) from circuit board.3. Keep wires away from high voltage and high temperature components.PRODUCT SAFETY NOTICETHE COMPONENTS DESIGNATED BY A STAR () ON THIS SCHEMATIC DIAGRAM DESIGNATE COMPONENTSWHOSE VALUES ARE OF SPECIAL SIGNIFICANCE TO PRODUCT SAFETY. SHOULD ANY COMPONENTDESIGNATED BY A STAR NEED TO BE REPLACED, USE ONLY THE PART DESIGNATED IN THE PARTS LIST. DO NOTDEVIATE FROM THE RESISTANCE, WATTAGE AND VOLTAGE RATINGS SHOWN.X-RADIATION WARNING NOTETHIS TV CONTAINS CRITICAL PARTS TO PROTECT AGAINST X-RADIATION. NOMINAL 2ND ANODE VOLTAGE IS29.0KV AT ZERO BEAM CURRENT AT 120 VOLTS AC LINE, AND MUST NOT EXCEED 30.0KV UNDER ANYOPERATING CONDITION. SEE HIGH VOLTAGE CHECK ON PAGE 8.1 1 11TOP VIEWSIDE VIEWCOUNT TERMINALS INARROW DIRECTIONMARKECBA KA KA KA KAKAKINFRARED EMITTINGA....ANODEK....CATHODEINTEGRATED CIRCUITS TRANSISTORS1DIODESPHOTO COUPLERSB ... BASEC ... COLLECTORE ... EMITTERE CB E CB E CBE CBE CBEC B E CBECB321 3 21 GND(2)IN(1)OUT(3)1 1TOP VIEW1CHIP TRANSISTORSBCETOP VIEWB ... BASEC ... COLLECTORE ... EMITTERCHIP RESISTORSTOP VIEW12312 x 10 = 12K ohm3NOTES ON SCHEMATIC DIAGRAMS1. All resistance values in ohms K=1,000 M=1,000,000.2. Unless otherwise noted on schematic, all capacitor values less than 1 are expressed in μF (Micro Farad),and the values more than 1 are in pF.3. Unless otherwise noted on schematic, voltage reading taken with VOM from point indicated to chassisground. Voltage reading taken using color-bar signal VHF channel 5, all controls at normal. Line voltage at 120volts. Some voltages may vary with signal strength.4. Waveforms were taken with color-bar signal and controls adjusted for normal picture. Waveforms markedwith an ✽ may vary with signal strength.5. The Symbol indicates a fusible resistor, which protects the circuit from possible short circuits.WAVEFORMSNOTE: Waveforms were taken with color-bar signal and the controls adjusted for normal picture.IC101- 17(R-Output)2.0V HORIZIC101- 18(G-Output)2.0V HORIZIC101- 19(B-Output)2.0V HORIZIC101- 52(Selected Video)1.0V HORIZIC501- 2(Vertical Output)58 VERTIC501- 5(Inverting Input)0.6V VERTQ202-E (TP16)(Internal Video)1.0V HORIZQ401- B(Horizontal Drive)0.7V HORZQ402- B(Horizontal Output)13V HORZT402- 9(Heater)28V HORIZQ601- B(Power Switching)6.0V 50KHzVOLTAGE CHARTSNOTE: Voltages were measured using color-bar signal and the controls adjusted for normal picture.Device/Pin # Volts/ModeIC101-43 GNDIC101-44 2.2IC101-45 3.7IC101-46 2.0IC101-47 3.0IC101-48 0IC101-49 2.5IC101-50 GNDIC101-51 GNDIC101-52 2.8IC101-53 5.2IC101-54 2.7IC101-55 2.7IC101-56 2.3IC101-57 GNDIC101-58 3.6IC101-59 4.4IC101-60 4.4IC101-61 GNDIC101-62 GNDIC101-63 GNDIC101-64 GNDIC101-65 2.5IC101-66 2.3IC101-67 1.9IC101-68 2.5IC101-69 3.2IC101-70 GNDIC101-71 GNDIC101-72 GNDIC101-73 2.3IC101-74 0IC101-75 2.3IC101-76 2.7IC101-77 2.3IC101-78 2.9IC101-79 2.9IC101-80 GNDIC301-1 0.9IC301-2 4.8IC301-3 2.0IC301-4 0IC301-5 5.1IC301-6 5.1IC301-7 0.3IC301-8 –0.3IC301-9 0.6IC301-10 0IC301-11 0IC301-12 1.5IC301-13 GNDIC301-14 1.9IC301-15 0IC301-16 1.5IC501-1 GNDIC501-2 13.7IC501-3 27.1IC501-4 2.9IC501-5 2.9IC501-6 26.2IC501-7 3.0IC501-8 2.9IC501-9 2.9IC501-10 13.3POWER ON: POWER OFF:IC601-1 129.2 92.5POWER ON: POWER OFF:IC601-2 31.1 9.8IC601-3 GNDIC681-1 POWER ON: POWER OFF:(IN) 11.6 7.3IC681-2 GNDIC681-3 POWER ON: POWER OFF:(OUT) 5.0 5.0IC801-1 4.0IC801-2 3.9IC801-3 4.9IC801-4 9.1IC801-5 0IC801-6 0IC801-7 0IC801-8 0.3IC801-9 0IC801-10 4.9IC801-11 0IC801-12 4.8IC801-13 4.9IC801-14 4.9IC801-15 1.9IC801-16 0.2IC801-17 2.1IC801-18 GNDIC801-19 2.2IC801-20 2.0IC801-21 GNDIC801-22 4.9IC801-23 0.2IC801-24 0.2IC801-25 4.8IC801-26 0.3POWER ON: POWER OFF:IC801-27 4.9 0IC801-28 2.3IC801-29 2.6IC801-30 0IC801-31 4.9IC801-32 3.6IC801-33 4.9IC801-34 3.7IC801-35 4.8IC801-36 4.9IC801-37 4.9IC801-38 0IC801-39 0IC801-40 0IC801-41 0IC801-42 0Device/Pin # Volts/ModePOWER ON: POWER OFF:D612-1 31.9 10.9POWER ON: POWER OFF:D612-2 31.0 9.8POWER ON: POWER OFF:D612-3 –.3 0.6POWER ON: POWER OFF:D612-4 13.3 1.4IC002-1 4.5IC002-2 10.3IC002-3 4.6IC002-4 GNDIC002-5 0IC002-6 1.4IC002-7 1.4IC002-8 GNDIC101-1 GNDIC101-2 GNDIC101-3 GNDIC101-4 GNDIC101-5 GNDIC101-6 5.1IC101-7 2.0IC101-8 2.6IC101-9 3.6IC101-10 3.7IC101-11 4.0IC101-12 1.5IC101-13 1.5IC101-14 1.5IC101-15 0IC101-16 8.3IC101-17 2.5IC101-18 2.5IC101-19 2.5IC101-20 2.25IC101-21 GNDIC101-22 GNDIC101-23 GNDIC101-24 GNDIC101-25 2.0IC101-26 2.4IC101-27 2.6IC101-28 5,3IC101-29 2.8IC101-30 0.6IC101-31 GNDIC101-32 4.9IC101-33 1.0IC101-34 1.8IC101-35 4.8IC101-36 3.9IC101-37 4.0IC101-38 4.7IC101-39 GNDIC101-40 0IC101-41 GNDIC101-42 GNDDevice/Pin # Volts/ModePOWER ON: POWER OFF:Q605-B 13.1 1.4POWER ON: POWER OFF:Q605-C –0.4 0.6POWER ON: POWER OFF:Q605-E 13.0 2.0POWER ON: POWER OFF:Q627-B 11.1 7.3POWER ON: POWER OFF:Q627-C 11.6 1.0POWER ON: POWER OFF:Q627-E 11.9 7.3POWER ON: POWER OFF:Q635-B 4.2 1.4POWER ON: POWER OFF:Q635-C 31.1 9.8POWER ON: POWER OFF:Q635-E 4.2 1.4POWER ON: POWER OFF:Q681-B 0.7 0POWER ON: POWER OFF:Q681-C 0 7.3Q681-E GNDPOWER ON: POWER OFF:Q688-B 11.6 1.0POWER ON: POWER OFF:Q688-C 0 0POWER ON: POWER OFF:Q688-E 11.5 1.0POWER ON: POWER OFF:Q693-B 0.5 6.2POWER ON: POWER OFF:Q693-C 30.9 8.9POWER ON: POWER OFF:Q693-E 0.4 5.7POWER ON: POWER OFF:Q695-B 30.9 9.6Q695-C GNDPOWER ON: POWER OFF:Q695-E 31.0 9.8Q701-B 2.6Q701-C 141.9Q701-E 2.5Q711-B 2.6Q711-C 143.1Q711-E 2.5Q721-B 2.6Q721-C 146.1Q721-E 2.5Q831-B 4.9Q831-C 4.9Q831-E 4.9Device/Pin # Volts/ModeIC3401-35 0IC3401-36 4.1IC3401-37 4.1IC3401-38 4.1IC3401-39 4.1IC3401-40 4.1IC3401-41 4.1IC3401-42 GNDIC3401-43 4.1IC3401-44 4.1IC3401-45 4.2IC3401-46 GNDIC3401-47 4.1IC3401-48 4.1POWER ON: POWER OFF:Q001-B 0.7 0POWER ON: POWER OFF:Q001-C 0 6.3Q001-E GNDQ005-B 9.6Q005-C 10.3Q005-E 10.3Q135-B 2.3Q135-C 5.2Q135-E 1.7Q202-B 2.7Q202-C GNDQ202-E 3.4Q208-B 2.8Q208-C GNDQ208-E 3.5Q401-B 0.3Q401-C 43.6Q401-E GNDQ402-B -0.1Q402-C 125.26Q402-E GNDQ486-B 9.9Q486-C 11.6Q486-E 9.1Q490-B 5.9Q490-C 6.9Q490-E 5.2POWER ON: POWER OFF:Q601-B –0.3 0POWER ON: POWER OFF:Q601-C 155.0 169.6Q601-E GNDPOWER ON: POWER OFF:Q604-B –0.4 0.6POWER ON: POWER OFF:Q604-C –0.3 0Q604-E GNDDevice/Pin # Volts/ModeIC802-1 GNDIC802-2 GNDIC802-3 GNDIC802-4 GNDIC802-5 4.9IC802-6 4.9IC802-7 GNDIC802-8 4.9IC1001-1 0IC1001-2 0IC1001-3 6.5IC1001-4 6.5IC1001-5 6.5IC1001-6 GNDIC1001-7 GNDIC1001-8 GNDIC1001-9 0IC1001-10 0IC1001-11 9.3IC1001-12 0.7IC1001-13 2.5IC1001-14 2.5IC1001-15 0IC1001-16 9.3IC3401-1 4.1IC3401-2 4.1IC3401-3 4.1IC3401-4 4.1IC3401-5 3.6IC3401-6 3.7IC3401-7 GNDIC3401-8 4.1IC3401-9 4.1IC3401-10 4.1IC3401-11 4.1IC3401-12 4.9IC3401-13 4.1IC3401-14 1.3IC3401-15 1.3IC3401-16 0IC3401-17 GNDIC3401-18 3.2IC3401-19 9.1IC3401-20 0IC3401-21 4.1IC3401-22 4.1IC3401-23 3.7IC3401-24 3.9IC3401-25 4.1IC3401-26 4.1IC3401-27 4.1IC3401-28 1.9IC3401-29 4.1IC3401-30 4.1IC3401-31 2.0IC3401-32 4.1IC3401-33 4.1IC3401-34 4.1Device/Pin # Volts/Mode

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