厦华TV21E6A彩电原理图

1 2 3 4 A B C D 4 3 2 1 D C B A Standby 1 SCL 2 SDA 3 Tuning 4 System 5 Key 6 Vol.1 7 MUTE 8 Vss C/P 9 Band1 10 Band2 11 VssA 12 SECPLL 13 Vp2 14 DECDIG 15 PH2LF 16 PH1LF 17 Gnd3 18 DECBG 19 AVL/EWD 20 VDRB 21 VDRA 22 IF1 23 IF2 24 IREF 25 VSC 26 Tuner AGC 27 AUDEEM/SIF1 28 DECSDEM/SIF2 29 Gnd2 30 SNDPLL/SIFAGC 31 AVL/REFO 32 H. out 33 FBISO 34 AUDEXT/QSSO 35 EHTO 36 PLLIF 37 IFVO/SVO 38 Vp1 39 CVBSINT 40 Gnd1 41 CVBS/Y 42 CHROMA 43 AUDOUT/AMOUT 44 INSSW2 45 R2/Vin 46 G2/Yin 47 B2/Uin 48 BCLin 49 Blanking 50 Rout 51 Gout 52 Bout 53 VddA 54 VpE 55 VddC 56 OscGnd 57 XTALin 58 XTALout 59 Reset 60 VddP 61 AV1 62 AV2 63 IRin 64 N301 TDA93XX/OM8371 R913 470 R923 470 R918 2.7K R928 2.7K R938 2.7K VD921 1N4148 VD911 1N4148 + C941 10uF/250V C943 1000pF/2KV H-Gnd R403 1.8K + C406 100uF/25V +15V VD470 FR154 + C458 10uF/160V R480 2/1W R460 1K 1/4W R463 5.6K T450 2 R454 270 C451 3900pF/500V R453 1K/1/2W + C453 47uF/35V +24V R452 100 L450 LF-05 V451 2SC5296 C455 9n1/2KV C456 6n8/2KV C457 36n/400V VD451 RU4DS VD452 RU4C L441 410uH + C446 6.8uF V171 2SC1815 R171 33K VD171 1N4148 + C171 47uF/16V + C743 100uF/16V 1 3 5 4 2 Z301 K2974 V308 2SC1674 C308 1000pF C311 10nF R304 56 R305 120 R308 680 R306 1K L302 1uH C309 0.1uF R311 33 1 2 3 RM R743 100 WP 1 n.c. 2 A2 3 Vss 4 Vdd 8 PTC 7 SCL 6 SDA 5 N702 24C08 R737 3.3K R736 3.3K R723 100 R724 100 +5V + C337 1uF/50V R331 15K + C333 47uF/10V L331 10uH + C339 2.2uF/50V C411 0.1uF R411 39K R401 100 R402 100 R318 27K R317 15K R316 680 R383 100 R382 100 R381 100 R380 220 X761 12MHz C762 33pF C761 33pF R702 3.3K R704 10K R705 10K N703 uPC574 R706 10K R707 10K V701 PH2369 R721 3.3K R722 3.3K + C703 22uF/50V C703A 0.01u C706 0.1uF + C751 10uF/16V L753 10uH L751 10uH R322 390 C326 0.1u + C361 100uF/16V L361 10uH R487 27K + C322 10uF/16V R451 2.2K C366 1000P C365 0.047uF V351 2SC1815 R321 2.7K R484 1K R483 8.2K C481 1000P +8V SW501 KDC-A11 L501 ET24 1 R501 220K / 1/2W C501 0.22uF/250VAC C505 1000pF/1KV C506 1000pF/1KV C504 1000pF/1KV C503 1000pF/1KV VD506 RL207 VD505 RL207 VD503 RL207 VD504 RL207 F501 T3.15AL250V + C507 150uF/400V L351 8.2uH R351 220 R398 4.7 1/4W + C352 100uF/16V R353 330 R354 220 R365 390 R366 430 SW06 TV/AV R701 1.2K R702 2K R703 2.7K R704 5.1K R705 6.8K R806 47 R733 4.7K + C871 10uF/16V C374 0.022u C373 0.022u C372 0.022u + C123 10uF/16V C723 0.01u + C807 10uF/16V R708 47 R709 10K +5V + C325 4.7uF/15V R728 3.3K +3.3V R405 1.8K C721 1000P + C723A 47uF/16V R1015 1.5K VD1775 C756 0.1u + C755 2.2uF/16V VD300A MTZJ5.1 1 R300A 22/1W V911 2SC2482 V921 2SC2482 V931 2SC2482 C921 470pF R924 47 C911 470pF R914 47 C705 0.1uF R701 5.6K R703 10K C701A 120pF C701 120pF R911 470 R921 470 R931 470 2 R915 15K/2W 2 R925 15K/2W 2 R935 15K/2W INVIN 1 VCC1 2 PUMP UP 3 VCC1 4 VOUT 5 VCC2 6 NON-INVIN 7 N401 LA78041 C403 0.033uF R407 180 1 R404 1 1/4W C405 180/500V -15V VD401 RGP10D C404 0.22u C460 0.1uF R472 0.47/1W + C474 100uF/25V +15V VD471 FR154 R470 0.47/1W + C471 100uF/25V -15V +B L452 37uF 1 R466 1K/1W + C466 4.7uF/160V C467 0.47uF/250V VD436 RGP15J R457 10K R456 100K R458 1k R435 18K VD431 1N4148 VR431 50K 2 R445 5.1 1W + C430 47uF/35V R433 2.7K R431 2.7K R438 270K VR432 10K C439 0.1uF R432 4.7K VCC 1 CH1OUT+ 2 GND(CH1OUT 3 CH1OUT- 4 STANDBY 5 CH1IN 6 GND 7 CH2IN 8 VOLUME 9 CH2OUT(-) 10 GND(CH2OUT) 11 CH2OUT- 12 N161 AN7522 + C121 10uF/16V + C157 4.7uF/50V C158 5600 R158 4.7K R157 8.2K + C153 4.7uF/50V C154 5600 R154 4.7K R153 8.2K + C161 1000uF/50V C162 0.1uF R161 1.8K + C745 22uF/16V R745 47K R163 2.7K + C804 1uF/50V + C806 1uF/50V R816A 10K + C813 1uF/50V R818A 10K + C815 1uF/50V V801 2SC1815 R801 68 R805 1K + C823 47uF/16V R824 100 R426 6.8K 7 8 1 3 12 11 10 16 14 15 13 T501 BCK40-1829A **************** 5 R502 MF72-2-7Ω-M R519 12M/1W C535A CT7 Y1-250VAC-1000pF 7 6 5 3 4 1 10 2 HV FO SC 8 T451 BSC24-01N40 CRT PS501 MZ72-14RM A101 ET-5CE-K04 1 2 XS501 1 2 L511 QHXC-63C L502 ET24 C408 0.033uF 1 R406 1/1W R436 39K C437 0.1uF R430 10 1/4W V450 2SC2383 C452 1000P/500V C472 0.01U C475 0.01U 1 2 3 4 HV FOCUS SCREEN GND 1 2 3 4 190V CRT GND HEATER GND XS402 +190V L412 DY 1 2 3 4 XS403 XS1801 Vi2 Li2 Ri2 A5 1 2 3 4 1 2 3 4 XS801 XS895 +8V R1-in L1-in V1-in Rout Lout Vout +8V IF MB BL BH TU AGC C302 0.01u + C301 10u/10V + C303 4.7u/16V + C304 4.7u/16V + C307 10u/16V R301 100 R302 100 SW01 P+ SW02 P- SW03 V+ SW04 V- SW05 MENU +8V +8V C323 820P C324 4700P C321 3300P C313 2200P C401 1000P C402 1000P C338 0.1uF C336 4700P C335 2200P C334 0.22u C332 0.01u +8V C331 0.22u C732 0.01u 1 2 1 2 XS701 PD12 A4 +3.3V C707 0.1u +130V R701A 2.2K R731 4.7K R735 3.3K 1 2 3 A3 1 2 3 A1 C744 0.01u R741 3.3K R742 3.3K +3V C752 0.1u +12.5V + C163 10uF/50V 1 2 1 2 XS161 XS162 B G R 1 2 3 4 5 1 2 3 4 5 B G R IK GND GND IK R G B R933 470 VD931 1N4148 C931 470pF R934 47 1 2 3 4 HV FOCUS SCREEN GND 1 2 3 4 190V CRT GND HEATER GND 1 A2 C362 0.022U +8V VD483 8.2V +8V Z351 XT-6.5/6.0/5.5 +8V +8V V121 2SC1815 R133 4.7K R128 1K V122 2SC1815 R131 4.7K R129 1K R732 3.9K + C116 47uF/16V + C163A 10uF/16V C391 0.1 AC127V-AC240V 50Hz V432 D880 MODEL: PH03VS-21 COLOUR TV SCHEMATIC DIAGRAM V431 2SA V433 2SC + C435 47uF/35V + C438 470uF/16V R450 8.2K R459 39K L453 120uH R467 22K BL BH VL VH U L L H H H H + C340 4.7uF/50V C364 0.047uF Rin2 1 Rin1 2 Vin2 3 Vout 4 Vin1 5 INH 6 A 11 Lin1 12 Lin2 13 Lout 14 Rout 15 VDD 16 VEE 7 VSS 8 B 10 C 9 N801 TC4053 R371 2.2K 1 2 3 4 TO XS893 R370 5.6K R375 4.3K R374 4.3K + C464 10uF/16V R455 10K Q452 2SC1015 C461 2200pF R434 220 R464 220K/0.25W R L L R R126 10K R127 10K +8V TV AV1/SCART/S-VHS/YUV AV2 A B C 、 、 INH 1 1 0 0 1 0 1 2 3 4 1 2 3 4 +8V R825A 10K R825 1K C824 470pF + C825 1uF/50V R827A 10K R827 1K C826 470pF + C827 1uF/50V VD941 HZ9A3 C942 560P V912 BF421 V922 BF421 V932 BF421 R912 1K R922 1K R932 1K VD912 ISS244 VD922 ISS244 VD932 ISS244 C912 470pF C922 470pF C932 470pF VD913 BAV21 VD923 BAV21 VD933 BAV21 PIN62 PIN63 PIN5: LOW LEVER = S-VHS HIGH LEVER =AV1 + C811 47uF/16V R815 100 YUV Y Cb Cr XS861 Y C C861 1000pF 1 2 3 4 XS893 1 1 2 2 3 3 4 4 5 5 N501 FSCQ0765RT C483 10P 1 R485 10K/1/4W R486 100/1/4W C482 100pF/500V VD472 RGP10D R473B 0.47/1W + C477 22uF/250V R473 220K/1/2W 180V R802A 10K R803A 10K R802 1K R803 1K R172 47K V173 2SC1815 R175 33K R734 1K 5V VD734 1N4148 +8V R174 270K R173 68K + C172 10uF/16V VD171A 1N4148 R511 10K C574 0.01uF VD524\ HER308 VD525 FR154 C527 470P/2KV C529 470P/1KV + C528B 220uF/160V R548 10K + C530 330uF/35V R556 22K 2W VR501 B-20K C571 0.01uF R560 1.2K C543 470p/1KV + C525 470uF/16V VD543 FR154 C521 470p/1KV + C522 1000uF/25V VD521 FR154 C523 470p/2KV + C524 1000uF/25V VD522 FR154 +12V R540 2.2K +26V +8V + C572 100uF/10V +5V V542 2SB892 R543 10K R539 51K R561 27 1/4W VD564 MTZ3.3 +3.3V + C573 47uF/16V OUT IN N505 KA7805 V504 2SC1815 V540 TL431LP + C532 470uF/16V V571 2SD400E 2 R580 100/2W VD572 1N4148 VD571 8.2V R581 560 2 R546 270/2W R541 1K R531 1K + C536 10uF/10V OUT IN N502 KA7805 +5V-2 2 R545 22/2W +5V 110V R539A 51K VD544 IN4148 C544 0.1uF R544 1K K R A VD561 IN4148 VD562 IN4148 C537 0.01uF R848 75 R815A 75 R852 75 C512 1000p/2KV L505 0.5uH + C514 IN4746A R515 2.4K R513 8.2 / 1/4W R512 2.7K VD510 FR154 VD512 FR154 VD511 1N4148 C513 470pF C511 0.1uF C510 33nF VD509 HZ4A2 VD508 J R507 120K R508 120K 1 2 3 4 N504 BPC817 R861 100 R162 10K R816 1K R818 1K VD563 HZ4B2 VD514 47uF/50V R514 1K/1W C517 10uF/50V + C1101 47uF/16V XS702 PD15 R482 1K C502 0.22uF/250VAC C518 CT7 Y1-250VAC-470pF TDA93XX TDA9341 TDA9351 TDA9361 TDA9381 注： 表示 、 、 和 ，这些都可应用于此电路板上。 第七章 电路原理图 26