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1、67 16 方框图和线路图 16 方框图和线路图 16.1. 线路图注意事项 16.1. 线路图注意事项 68 16.2. 主要集成电路方框图 16.2. 主要集成电路方框图 TH-42PV30CTH-42PV30C INITIALIZE PULSE 64 64 S.R S.R S.R 64 S.R 64 64 S.R 64 S.R CONTROL PULSE VOLTAGE SCAN SC20D20 CONTROL DISCHARGE MAIN MPU SUB MPU ROM A/D BUS 24bit FORMAT CONVERTER RGB PROCESSOR PROCESSOR SUB
2、-FIELD PLASMA AI SDRAM D34D33 P25D25 P27D27 P9 P12 P11SS11 SS12 SS42SS34 SS57 SS31 SUSTAIN PULSE ERASE PULSE ADDRESS VOLTAGE (VE) 5V UR12V STB7V D3 SDRAM PROCESS VOLTAGE RECTIFIER CONTROL SUSTAIN VOLTAGE RECTIFIER SUSTAIN VOLTAGE VDA 15V 5V 12V P23P2 VSUS LINE FILTER STAND BY PF1 PF10 PF2 POWER SWIT
3、CH SC SU SD CONTROL D P SOS ON/OFF STB5V S34 S STB PS VDA SS PF SS2 SS3 AC IN AC IN 15V 64 64 S.R S.R S.R 64 S.R 64 64 S.R 64 S.R PRIMARY CIRCUIT SS21 SS58 D31D32 SUB-FIELD PLASMA AI PROCESSOR SDRAMROM RECTIFIER POWER RELAY FACTOR CONTROL VOLTAGE PROCESS CONTROL VOLTAGE STANDBY RECTIFIER CONTROL VOL
4、TAGE RECTIFIER STANDBY LOW VOLTAGE PROTECTOR VOLTAGE HIGH PROTECTOR SYNC PROCESSOR/ HD/VD VDHD VSUS M P30-P33 FAN HEADPHONE RGB/PC G5 SELECT DG3 DG6 DG2 DG7 KEYSCAN G GC2S G7 MICOM MICOM CONVERT EEPROM RGB AMP VIDEO3 PC ING18 DG1 TA DG18 TUNER MAIN TEXT DG T10 SDRAM GC2M SDRAM TUNER 30VPA2 CONVERTER
5、 PA5 PA7 R OUT PA PA6PRE AMP SPEAKER PA3 DC/DC L OUT L OUT R OUT SD CARD I/F JG Y/C OUT PC CARD DG10 P7 P5 +12Vs 12V STB5V 15V K24 VDA C4C3K S.R.S.R.S.R.S.R. C43 C33 C44 C42 POWER ON STAND BY G R LED REMCOM RECEIVER SENSOR CAT S.R.S.R. C41C31 S.R.S.R. S.R. C2 S.R.S.R.S.R.S.R.S.R.S.R. C11 S.R. C21 C1
6、 C12C22C32 SC2 SC23 SS32 MSP AUDIO AV4 OUT H H9 H1 SWITCH AV1 AV2 AV H10H11 H4DG4 JG3 PA10 NR 21V STB 5V NR 14V SPEAKER WOOFER PA1 WOOFER TB TUNER SUB T11 69 16.3. PF 电路板方框图 16.3. PF 电路板方框图 + L.FL.F -+ + + OVP Q Vref - Soft - VOVP Thermal Vcc(start) S IF/B + R GND Q comp Detection + UVLO Vcc comp Ze
7、ro Current Limit F/B Current Limit Z/C drive On Time Timer + R On Dead Timer D Timer comp VUL + Stand-By Peak S - - + Restart Latch-stop Current /Vcc(startup on) UVLO Vcc(startup off) - S Startup comp Burst Peak Startup Shutdown /Vcc(stop) L.F + + L.F 400V DC187V AC120V R928 C971 R925 C974 LF904 1 2
8、 34 CF902 CF901 R924 R901 L921 C924 R940 C921 D925 R934 C911 C970 RL901 S901 IC921 LF909 1 2 34 C910 C915 R975 C914 C926 F901 D920 R974 C922 C920 D922 R929 C925 C902 R904 C928 F902 K5D312BK0012 F900 R976 D970 C903 D926 R935 IC920 3 1 45 2 R927 R972 R973 LF911 1 23 4 C901 R971 C975 R970 D990 R990 R99
9、2 Q990 C990 C972 C973 D971 LF915 1 2 34 T920 2 S3 3 S4 5 S1A 7 S2A 8 S2B 10 V1 11 V2 12 NC 13 NC 14 P1 15 NC 16 PT 17 NC 18 P2 6 S1B T3.15AL 250V HOTCOLD HOTCOLD HOTCOLD HOT COLD IC970 ERROR VOLTAGE DET POWER CONTROL 4 PF2 FEED BACK 1 1 4 PF1 LIVE LIVE TO P9 NEUTRAL NEUTRAL LIVE T8AH 250V 1 2 14V(UN
10、 REG) 3 21V(UN REG) 4 REF_2.5V NEUTRAL T8AH 250V TO PA10 POWER ON/OFF CONTROL STAND-BY 5V 9 PF10 1 7 2 5 AC CORD GND AC INLET AC_ON/OFF STB_5V UNR_21V UNR_21V UNR_14V HOT COLD PF Tuner Power Supply HOT COLD HOT COLD # $ 3 2 1 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! TH-42PV30CTH-42PV30C 70 16.4. PF 电路板线路
11、图 16.4. PF 电路板线路图 A B C D E F 123456789 ? ? ? ? PF-? TNPA2926AB! + + + L.F + -+ + L.F L.F L.F + RESET REG - REG TFC S/GND Mirror Vcc - OVP Q - BEC DRIVE REG RTFC + Current R + BD OSC D + OLP LATCH + BTC DRV FB/OLP TSD S - Current OCP OCP/BD Mirror HOTCOM100V-240V AC100V-240V -140Vp -140Vp 585Vp R938
12、 100k C929 50V 10u F901 K5D802BNA003 JS80 C971 35V 1200u JS70 PF1 1 * 3 2 4 * 1/2W R939 0.82 D921 B0EAKT000018 TP978 C990 50V 10u LF904 G0B123K00001 1 * 2 * 3 * 4 * IC970 AN1431M-E1 CATHODE 3 1 REFERENCE ANODE 2 1% R975 2.32k 7W R904 3.3 * L973 10u TP904 T920 ETS29AK7E6AD 2S3 3S4 5S1A 7S2A 8S2B 10 V
13、1 11 V2 12 NC 13 NC 14 P1 * 15NC 16 PT 17 NC 18 P2 * 6S1B C973 25V 1000u D990 MA3X152K0L C974 50V 3300p D920 B0EBNT000002 DJ501-0(M)-0 RL901 K6B1ADA00023 * * * * L971 10u 0 R994 R972 100 D926 B0HCMM000001 C922 50V 0.1u JS9 IC921 B3PAA0000261 1/2W R924 3.3 C917 470p C926 50V 470p Q990 2SD13280TL L972
14、 0 D922 B0HCMM000001 C916 470p R992 47k C903 1u * L921 EXCELSA24T L922 EXCELDR35V C915 0.22u * R970 680 C910 220p C914 220p 1W R920 100k 1W R921 100k F900 K5D802BNA003 R928 470 C902 0.22u * C911 220p R927 560 C924 2kV 470p * C970 1kV 330p C931 50V 150p PF10 1 2 3 4 5 6 7 8 9 C972 1kV 330p CF901 ERZV
15、10V621P2 D925 B0HCMM000001 D971 B0HAPM000012 GTGT 2W R923 10 C920 450V 150u * C901 1u * L970 EXCELSA24T R935 1k C927 50V 220p R971 470 JS12 JS11 TP979 R922 220k R973 2.2k R933 180 LF915 G0B123K00001 1 * 2 * 3 * 4 * 0R993 D970 FMLG12SLF118 * LF909 G0B123K00001 1 * 2 * 3 * 4 * 1/2W R901 1M * 1% R974 1
16、6.9k 1/2W R932 0.82 D929 B0BA01000046 TP901 JS73 ZA901 K4ZZ01000121 CF902 ERZV10V621P2 S901 J0LT00000009 S915 J0LT00000009 R990 3.3k * R936 22k K5D312BL0008 F902 LF911 G0B353G00001 1 * 2 * 3 * 4 * C928 50V 2200p 1/2W R902 1M * C923 400V 0.01u JS10 C930 50V 0.01u C921 50V 33u PF2 1 * 3 4 * 1/2W R931 0.68 R940 100 TP977 R934 150 IC920 C5HABZZ00121 1 3 5 4 6 7 L920 J0JKB0000038 * K2AH3H000028 AC LINE CODE VR160V 73uA -0.65V GND T3.15A
