Sanyo DS27820 Service Manual

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Contents

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— 29 — — 30 — — 32 —— 31 —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.D601-D604FULL WAVERECTIFIERQ605ERR.AMP.Q604OSCQ601SW.T601CONVERTERTRANS.LF601LINEFILTERPS601POSISTORRL601RELAYL901DEGAUSINGCOILAC120V60HzF601ACFUSEC601D627+16V+130VD621 D694D624D6254A 125V+12VQ62712V SW.Y CV IN121314158IC101SIGNAL PROCESSSDA 9SCL 1078/7911Y 52C 544944Q135BUFFERPIP VCC3.3VBEAMVOLTAGEDETECT.ABL-INMUTES1-SWS2-SWPIP TV/AVPIP AV 1/2MAIN AV 1/2Q208CAPVIDEOOUTRF AGC 77ACLX141SAWFILTERINT. VIDEOC1/C2PIP CVBS INQ8073Q8083Q8076CVBSIN2324 25 45 47 8 51 49 32Q8005 Q80063322 13 IC8001PIP CONTROLERQ8090SDASCLCYH-SYNCV-SYNCQ8093Q8097CYPIPSYNCINQ831RESETA101UHF/VHF TUNERWITH PLL& BAND SWIFAGCIC802EEPROM67A1901RC PRE-AMPSW1901-1906CONTROL KEYSRF AGCBUS SCLBUS SDAIIC SCLIIC SDARC INKEY INX INX OUT28343233311091920303821H-S V-SIC801CPUWITHCAPTIONDECODERX 801ANTC809C8081235765IC501VERT.OUTPUTQ401HORIZ.DRIVET401H-DRIVETRANS.Q402HORIZ.OUTPUTHOLD DOWNDETECT.3040171819HOLD DOWNT402HORIZ.OUTPUTTRANS.H.V.AFCDEFLECTIONYOKEABLFOCUSSCREENHEATERV +B56/749341VH2H-PULSEABLY/V SELECTQ721Q711Q701-R OUT-G OUT-B OUTRGBQ901PIX TUBED481200V(7V)D429 D428(16V)R428g7jamANODE LEAKDETECT.L164X16175 SIF56373633264.5MHzSOUNDTRAPIC001AUDIOAMP.1085 31 (L)(R)K1021FIXEDAUDIO OUT (L)K1011FIXEDAUDIO OUT (R)SP901SPEAKER(R)SP902SPEAKER(L)MUTEQ001433938AV 2 RAV 1 LAV 1 RAV 2 L 333736 3413IC3401MTS DECODERK1001 A/V 1 INVIDEO INAUDIO IN (L)AUDIO IN (R)D482VIDEOH-SV-S5LRYY1 INC1 INS1 SWCK1051S1 IN AV1YK1002 A/V 2 INVIDEO INAUDIO IN (L)AUDIO IN (R)S1 SWPIP AV 1/2PIPTV/AVCVBS PIP11 14 10 4 9 15IC1002SELECT CVBSFOR PIP13 12 5 3 2 1INT. VFOR PIPEXT.V INFOR PIP13 V2 IN5 C1 IN2 Y1 IN1 V1 INHHHLLLH H HL L LQ1097Q1096S2-SW 11V2 14MAIN AV 1/2 9C1 4S1-SW 10V1/Y1 15V2V1/Y1IC1001SELECT V/Y + C1/C256SDLSCLQ202BUFFERIN SELECTOUT SELECT1311 7 SC3212 Y/V SELECTINT. VIDEOS CLOCK 3.5816 141591COMBFILTERC YC1/C2H PULSERESETOSDSW.RGBOUTCONTBRITECOLORDEMODSHARPBPABLACKSTRETCHDELAYLINESYNCSEP.HORIZ.DRIVERVIDEODET.FMDET.BUSINTERFACEHVVIDEOSW.+12V32 5VB9Q4869V REG.Q4905V REG.Q80003.3V REG.5VALWAYSB912VB49V5VB6D801D483+26VD508MODEL DS27820 Chassis No. 27820-00SCHEMATIC 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/ModeIC101-42 GNDIC101-43 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 1.4IC001-1 7.4IC001-2 GNDIC001-3 7.7IC001-4 15.5IC001-5 7.9IC001-6 10.8IC001-7 2.2IC001-8 1.4IC001-9 GNDIC001-10 1.4IC101-1 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 GNDDevice/Pin # Volts/ModeIC8001-29 0IC8001-30 GNDIC8001-31 N.C.IC8001-32 0.4IC8001-33 0.3IC8001-34 3.1IC8001-35 3.1IC8001-36 GNDIC8001-37 3.0IC8001-38 0.9IC8001-39 2.9IC8001-40 1.2IC8001-41 1.2IC8001-42 GNDIC8001-43 0.9IC8001-44 3.2IC8001-45 0.9IC8001-46 3.2IC8001-47 1.0IC8001-48 GNDIC8001-49 1.0IC8001-50 GNDIC8001-51 0.9IC8001-52 GNDPOWER ON: POWER OFF:Q001-B 0 0.7POWER ON: POWER OFF:Q001-C 7.7 0Q001-E GNDQ135-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 GNDQ446-B 4.0Q446-C GNDQ446-E 4.7Q486-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 GNDDevice/Pin # Volts/ModeIC3401-19 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 4.1IC3401-35 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 4.1IC8001-1 GRDIC8001-2 2.1IC8001-3 1.6IC8001-4 1.8IC8001-5 1.6IC8001-6 3.2IC8001-7 3.2IC8001-8 0.9IC8001-9 1.4IC8001-10 0.5IC8001-11 GNDIC8001-12 3.2IC8001-13 0.8IC8001-14 1.4IC8001-15 0.5IC8001-16 GRDIC8001-17 3.1IC8001-18 GRDIC8001-19 3.1IC8001-20 N.C.IC8001-21 0IC8001-22 0.2IC8001-23 0.1IC8001-24 0.3IC8001-25 2.2IC8001-26 GNDIC8001-27 3.1IC8001-28 N.C.Device/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 9.3IC1002-1 6.3IC1002-2 6.2IC1002-3 2.4IC1002-4 2.7IC1002-5 2.7IC1002-6 GNDIC1002-7 GNDIC1002-8 GNDIC1002-9 0IC1002-10 0IC1002-11 0IC1002-12 6.0IC1002-13 6.2IC1002-14 6.0IC1002-15 6.2IC1002-16 9.1IC3401-1 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 3.2Device/Pin # Volts/Mode Device/Pin # Volts/ModeQ8000-B 3.9Q8000-C 4.2Q8000-E 3.2Q8005-B 0.6Q8005-C 0.3Q8005-E GNDQ8006-B 0.6Q8006-C 0.2Q8006-E GNDQ8073-B 4.3Q8073-C 9.0Q8073-E 0Q8076-B 3.7Q8076-C GNDQ8076-E 4.4Q8083-B 2.9Q8083-C 0.2Q8083-E 3.1Q8090-B 0Q8090-C 3.4Q8090-E GNDQ8093-B 1.8Q8093-C 2.1Q8093-E 3.4Q8097-B 1.9Q8097-C 2.2Q8097-E 3.3POWER ON: POWER OFF:Q604-B –0.4 0.6POWER ON: POWER OFF:Q604-C –0.3 0Q604-E GNDPOWER 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: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 4.9Q1096-B 6.9Q1096-C 9.1Q1096-E 6.2Q1097-B 5.9Q1097-C 9.1Q1097-E 5.3Device/Pin # Volts/Mode

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