Toshiba 20AF41 Service Manual - Page 20

A 8 FROM/TO AV C.OUT Y.OUT TUNER_VIDEO 1 7 FROM/TO AV 2 CD701B 3 CH244001 4 6 B C D E F CHROMA / IF SCHEMATIC DIAGRAM (MAIN PCB) S804X S804Y R604 470 R605 10K L601 47uH 16V1000 YK S802Y C640 L205 47uH 5 R214 270 9.0 3.1 R223 150 C227 470P CH TV BUFFER Q203 2SA1037AK 2.4 3.1 0 R213 330 L204 12uH TV BUFFER 9.0 Q202 2SC2412K 4.1 3.5 R210 R211 150 CF203 EFCT4R5MW5 S803X 2.2K R204 220 R212 3.3K R203 1.2K C210 0.0022 B C211 R215 50V0.22 KA 470 7 S803Y D201 MTZJ12B 3.7 AUDIO BUFFER Q201 2SC2412K C213 10V100 YK R205 100 6 C212 0.1 B C604 50V1 KA C603 0.1 B C605 0.1 B C606 0.1 B C607 R747 75 R750 75 0.01 B C608 16V10 KA C633 0.47 TF C612 50V2.2 KA W842 W840 9 1K C611 R602 0.1 B 8 C610 0.68 TF C615 10V100 YK R603 8.2K C609 0.022 B W830 R632 150K R607 2.2K C638 11 10 R608 270 1/4W 100P CH C616 16V47 KA C617 C214 16V10 KA C215 33P CH C216 16V10 KA C634 0.22 B C601 0.1 B 0 4.1 2.4 9.0 2.4 3.7 2.8 3.6 2.4 2.5 1.9 2.4 2.5 2.5 2.5 2.7 1.5 0 6.0 4.9 9.0 7.1 4.0 2.1 0 6.0 3.4 2.0 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 0.01 B G H 8 FROM/TO MICON/TUNER SYNC_OUT SDA SCL OSD_B OSD_G 7 OSD_R OSD_BLK R.OUT 6 IF GND IF DET OUT LOOP FILTER IF VCC(9V) V REF DE-EMPH DC NF FILTER EXT AUDIO IN Y CLAMP FILTER CVBS LNT IN APL DET FILTER CVBS EXT IN U IN V IN C IN BLACK DET FILTER CVBS OUT DIG GND V OUT V RAMP H VCC(9V) H AFC FILTER H OUT SYNC OUT X-RAY FBP IN/GP OUT DIG VDD EW OUT TB1253N CHROMA IC201 R201 1K SIF/H CORR IN IF VCC(5V) VCO ADJ FILTER AUDIO OUT AFT OUT IF IN IF IN IF AGC RF AGC X'TAL(3.58MHz) APC FILTER CW OUT YC VCC(5V) R OUT G OUT B OUT YC GND SVM OUT YS/YM IN EXT R IN EXT G IN EXT B IN RGB VCC(9V) SCL SDA EHT IN IK IN ABCL IN 5 FROM/TO POWER GND_POWER 4 GND_SIGNAL P.CON+9V P.CON+5V FROM/TO MICON/TUNER AFT_OUT 3 AGC IF W844 CF201 EFCT4R5YS5A C201 R202 R218 2.2K R220 68 R217 6.8K 0.01 B 1K X601 3.579545MHz C629 0.0022 B R618 10V100 YK C631 39P CH C632 39P CH C218 0.01 B C208 0.01 B C209 50V0.47 KA C203 16V100 YK C204 16V10 KA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 3.0 5.0 0 0 0 0.1 2.7 3.2 2.1 2.0 2.9 1.6 5.0 4.8 4.8 4.8 0 2.2 0.1 2.2 2.2 2.2 9.0 5.0 5.0 1.1 9.0 6.0 NC 12 R625 W847 150K C623 0.01 B C624 R614 C619 6.3V 1000 YK R610 2.7K R612 2.7K 0.01 B R209 33K C222 C636 0.1 B C625 0.1 B L603 47uH 0.1 B C622 0.1 B C621 C620 1.8K 10K R615 2.7K R623 33K 50V0.22 KA C618 C627 0.01 B 8P CH C637 3P CH R619 C630 C206 0.1 B L202_1 0.82uHELF0505 1.5M R616 100 R617 100 R624 100 47uH R609 100 R611 100 R613 L604 C202 0.01 B L602 100uH D604 MTZJ6.2B D603 MTZJ6.2B D602 MTZJ6.2B D612 MTZJ6.2B W839 C602 0.1 B W848 L201 100uH0305 470 R221 L203 220 1/4W C220 2.2uH R219 0.1 B C221 1.3 6.2 0.01 B PRE AMP Q204 0.6 2SC2814 C207 5P CH 54321 OUTOUT G IN IN CF202 SAF45MFX220ZR R636 2.2K W849 13 14 15 R635 33K 1/4W 0 D611 1SS133 D613 1SS133 D614 1SS133 4.2 V.BLK 0 Q604 2SC2412K C935 50V 4.7 KA W820 W816 D605 11E1-EIC 50V4.7 KANP 270K C642 50V4.7 KANP C626 0.012 B 5 4 FROM/TO DEFLECTION V.OUT2 H.OUT AFC EW_OUT ABCL VM_OUT B.OUT 3 G.OUT R.OUT V.OUT1 R907 100 1/4W R908 100 1/4W C926 0.047 B C928 0.1 B C931 0.1 B R909 10M R904 470 R905 470 C966 0.1 B C967 0.1 B 2 FROM/TO AV FSC_OUT TUNER_AUDIO_L TUNER_AUDIO_R AUDIO_L TP901 1 NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE. NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL. NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE R906 SOUND DECORDER IC IC902 AN5829S 220K C917 50V4.7 KA C959 16V10 TT C922 +-10% 0.022 B C925 0.1 B C965 0.1 B C918 50V4.7 KA C919 50V2.2 KA C921 2.3 2.3 2.3 2.3 NC 0 5.0 5.0 0 24 23 22 21 20 19 18 17 GND AGC OUT SW DAC ZAP IIC Decoder 3.7 3.6 2.6 3.7 16 15 14 13 St.PLL Det VCA Det Pilot Input SAP Matrix Switch De-Emph (L-R)/SAP 75us Cancel Offset Filter SAPout Cancel Offset Expand Wide Band 2.3 1 2 3 4 L-R Filter L+R Filter L-R Demod Cancel Pilot Filter L+R Demod Stereo Filter Noise Filter SAP fH.2fH Trap Filter Filter Filter Wide Band Spectral Demod SAP RMS Det Wide Band 5 6 dbx De-Emph 7 Vcc 8 Expand Spectral 9 RMS Det Spectral 10 11 Det Noise 12 0 2.3 2.3 2.2 2.2 0.4 5.1 2.4 2.4 0.4 2.3 3.4 C930 0.1 B C932 L901 22uH 50V0.33 KA C927 0.022 B C929 16V3.3 TT +-10% C924 10V100 YK 0.1 B A B C D E F G 2 PCB010 1 TMX481 H