Sanyo DS19204 Service Manual

Also see for DS19330: Owner's manual Owner's manual Service manual

Contents

Sanyo DS19204 Service Manual Manual pdf 29 page image

MODEL DS19330 Chassis No. 19330-02SCHEMATIC DIAGRAMSCAPACITOR 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 DIAGRAM151920212213102533OSD (R)OSD (G)OSD (B)OSD (BLK)RESETAFT S-CURVEPOWER FAILPOWERON/OFFSTANDBY MODEALWAYS +5VCONTROLQ693,Q695D612PHOTOCOUPLERIC601POWERREG.Q68112V SWDRIVEIC6815V REG.D601-D604FULL WAVERECTIFIERQ613ERR.AMP.Q601SW.T601CONVERTERTRANS.LF601LINEFILTERPS601POSISTORL901DEGAUSINGCOILAC120V60HzF601ACFUSEC601+135VD625TJ1TJ5D6244A 125V+12VQ62712V SW.Y CV IN121314158OSDSW.RGBOUTCONTBRITECOLORDEMODSHARPBPABLACKSTRETCHDELAYLINESYNCSEP.HORIZ.DRIVERVIDEODET.FMDET. SWBUSINTERFACEIC101SIGNAL PROCESSSDA 9SCL 1078/7911Y 52Y 5449HVBEAMVOLTAGEDETECT.ABL-INRF AGC 77ACLX141SAWFILTERA101UHF/VHF TUNERWITH PLL& BAND SWIFAGCIC802EEPROM67A1901RC PRE-AMPSW1901-1906CONTROL KEYSRF AGCBUS SCLBUS SDAIIC SCLIIC SDARC INKEY INX INX OUT94321281267111718IC801CPUWITHCAPTIONDECODERX 801ANTC809C808IC501VERT.OUTPUTQ401HORIZ.DRIVET401H-DRIVETRANS.Q402HORIZ.OUTPUTHOLD DOWNDETECT.3040171819HOLD DOWNT402HORIZ.OUTPUTTRANS.H.V.DEFLECTIONYOKEL902ABLAFCFOCUSSCREENHEATER6/79451VH5H-PULSEABLQ721Q711Q701-R OUT-G OUT-B OUTGRBQ901PIX TUBE(7V)D429 D428(13V)R428g8mamANODE LEAKDETECT.66735636 V-STP 16AUDIO OUTAUDIO IN37 H-S3326IC001AUDIOAMP.7 1 SP901SPEAKERD482VIDEOEXT. VIDEOINT. VIDEO1K1003FRONTAV INQ4869V REG.Q4905V REG.5VALWAYS12V9VH-S V-S5VB6D801D802CAPVIDEOOUTVIDEOSW.Q831RESETEXT. VIDEOINT. VIDEOEXT. VIDEOEXT. AUDIOD626 26V26VD481200VWAVEFORMSNote: Voltages were measured with offset color-bar signal and controls set for normal picture.IC101- 17(R-Output)3.4V HORIZIC101- 18(G-Output)3.4V HORIZIC101- 19(B-Output)3.4V HORIZIC101- 52(Video Input)1.0V HORIZIC501- 5(Vertical Output)50 VERTIC501- 1(Inverting Input)0.6V VERTTP16(Internal Video)1.0V HORIZQ401- B(Horizontal Drive)0.9V HORZQ402- B(Horizontal Output)21V HORZT402- 9(Heater)28V HORIZQ601- G(Power Switching)15V 50KHzDevice/Pin # Volts/ModeIC101-36 5.0IC101-37 4.3IC101-38 4.7IC101-39 GNDIC101-40 0IC101-41 GNDIC101-42 GNDIC101-43 GNDIC101-44 2.0IC101-45 3.4IC101-46 1.8IC101-47 2.8IC101-48 GNDIC101-49 2.2IC101-50 GNDIC101-51 GNDIC101-52 2.5IC101-53 4.9IC101-54 2.7IC101-55 2.5IC101-56 2.2IC101-57 GNDIC101-58 3.6IC101-59 4.4IC101-60 4.4IC101-61 GNDIC101-62 GNDIC101-63 GNDIC101-64 GNDIC101-65 2.4IC101-66 2.2IC101-67 2.2IC101-68 2.4IC101-69 3.2IC101-70 GNDIC101-71 GNDIC101-72 GNDIC101-73 2.3IC101-74 GNDIC101-75 2.2IC101-76 2.6IC101-77 2.6IC101-78 2.9IC101-79 2.9IC101-80 GNDIC501-1 2.5IC501-2 25.9IC501-3 2.9IC501-4 GNDIC501-5 11.5IC501-6 26.5IC501-7 2.6IC601-1 136.0IC601-2 29.2IC601-3 GNDIC681-1 13.4IC681-2 GNDIC681-3 5.0IC801-1 5.0IC801-2 5.0IC801-3 4.4IC801-4 4.3IC801-5 GNDIC801-6 1.9IC801-7 2.7IC801-8 5.0IC801-9 2.7IC801-10 2.4IC801-11 0IC801-12 0IC801-13 4.9IC801-14 3.5IC801-15 2.7IC801-16 4.6IC801-17 5.1IC801-18 4.3IC801-19 0IC801-20 0IC801-21 0IC801-22 0.4IC801-23 4.9IC801-24 4.9IC801-25 4.9IC801-26 GNDIC801-27 GNDIC801-28 4.9IC801-29 GNDIC801-30 GNDIC801-31 GNDIC801-32 GNDPOWER ON: POWER OFF:IC801-33 4.9 0IC801-34 N.C.IC801-35 4.9IC801-36 5.0IC802-1 GNDIC802-2 GNDIC802-3 GNDIC802-4 GNDIC802-5 4.9IC802-6 4.9IC802-7 GNDIC802-8 5.0Device/Pin # Volts/ModePOWER ON: POWER OFF:D612-1 26.1 9.7POWER ON: POWER OFF:D612-2 25.1 8.5POWER ON: POWER OFF:D612-3 0.2 0.3POWER ON: POWER OFF:D612-4 4.0 0.2IC001-1 5.8IC001-2 12.8IC001-3 N.C.IC001-4 GNDIC001-5 N.C.IC001-6 N.C.IC001-7 1.6IC001-8 GNDIC101-1 GNDIC101-2 GNDIC101-3 GNDIC101-4 GNDIC101-5 GNDIC101-6 5.1IC101-7 2.4IC101-8 2.4IC101-9 4.5IC101-10 4.5IC101-11 3.8IC101-12 0.1IC101-13 0.1IC101-14 0.1IC101-15 0.2IC101-16 8.2IC101-17 2.5IC101-18 2.4IC101-19 2.5IC101-20 GNDIC101-21 GNDIC101-22 GNDIC101-23 GNDIC101-24 GNDIC101-25 N.C.IC101-26 2.1IC101-27 2.6IC101-28 5.3IC101-29 2.7IC101-30 0.4IC101-31 GNDIC101-32 N.C.IC101-33 1.0IC101-34 1.8IC101-35 N.C.VOLTAGE CHARTSNOTE: Voltages were measured using color-bar signal and the controls set for normal picture.Device/Pin # Volts/ModeQ401-B 0.3Q401-C 17.7Q401-E GNDQ402-B 2.9Q402-C N/AQ402-E 3.0Q486-B 9.9Q486-C 10.5Q486-E 9.2Q490-B 5.9Q490-C 6.7Q490-E 5.2POWER ON: POWER OFF:Q601-G 4.0 0.3POWER ON: POWER OFF:Q601-D 156 169POWER ON: POWER OFF:Q601-S 0.2 0POWER ON: POWER OFF:Q613-B 0.2 0.1POWER ON: POWER OFF:Q613-C 3.9 0.1Q613-E GNDPOWER ON: POWER OFF:Q627-B 12.7 8.0POWER ON: POWER OFF:Q627-C 13.2 0POWER ON: POWER OFF:Q627-E 13.3 6.6POWER ON: POWER OFF:Q681-B 0.7 0POWER ON: POWER OFF:Q681-C 0 9.1Q681-E GNDPOWER ON: POWER OFF:Q693-B 0.5 7.0POWER ON: POWER OFF:Q693-C 25.0 7.2POWER ON: POWER OFF:Q693-E 0.3 6.5POWER ON: POWER OFF:Q695-B 25.1 7.9Q695-C GNDPOWER ON: POWER OFF:Q695-E 25.1 8.5Device/Pin # Volts/Mode Device/Pin # Volts/ModeQ701-B 2.4Q701-C 138.7Q701-E 2.2Q711-B 2.4Q711-C 139.8Q711-E 2.2Q721-B 2.6Q721-C 134.1Q721-E 2.4Q831-B 4.2Q831-C 4.9Q831-E 4.9SERVICE 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 IS26.0KV AT ZERO BEAM CURRENT AT 120 VOLTS AC LINE, AND MUST NOT EXCEED 27.8KV UNDER ANYOPERATING CONDITION. SEE HIGH VOLTAGE CHECK ON PAGE 7.1 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 set for normal picture. Waveforms marked withan ✽ may vary with signal strength.5. The Symbol indicates a fusible resistor, which protects the circuit from possible short circuits.

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