Toshiba MW20H63 User Manual - Page 24

A B C D E F G Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM (VCR MT PCB) 8 R4545 FSC 1K P.CON+5V Y/C_CLK P.CON+5V Y/C_DATA L4506 47uH 12K Y/C_CS H.SW 12K R4528 C_ROTARY VCR_A_MUTE H.AMP_SW1 COMP ENV_DET FROM REGULATOR P.CON+9V 7 P.CON+5V W864 R4524 47K C4538 0.1 B R4523 R4525 22K R4530 22K L4505 47uH 6.3V 47 KA_P 1.8K BUFFER 12 Q4507 KTC3875S_Y_RTK R45374.0 5.0 1.8K 3.4 1/4W W880 NC C4556 0.01 B 1.5K C4549 50V 1 KA_P R4541 C4547_1 8.2K C4546 50V1 KA_P C4545_1 C4543_1 C4535 0.1 B FROM/TO Hi-Fi NORMAL_A Y/C_AUDIO FSC HF2 HF_COM HF1 6 FROM/TO CYL CP4501 TOC-C09X-A1 9 HF1 (R) 8 HF COM 7 HF2 (L) 6 SP-CH1 (R) 5 SP COM 4 SP-CH2 (L) 3 EP/LP-CH1 (R) 2 EP/LP COM 5 1 EP/LP-CH2 (L) 4 CD4501 2F061502 3 FROM/TO HEAD AUDIO CONTROL CP4502 IMSA-9604S-06C 6 AUDIO REC 5 AUDIO PB 4 CTL+ 3 CTL- 2 AE HEAD(+) 1 AE HEAD(-) 2 W801 TO FULL ERASE HEAD CP4503 B2013H02-2P 2 FE HEAD(GND) GND 1 FE HEAD(HOT) HOT 2.2 1/4W C4558_1 0.022 B C4502 0.1 B C4505 0.1 F C4508_1 6.3V 220 KA_P C4509 0.1 B P.CON+5V L4501 100uH 0607 NORMAL_A P.CON+5V R4504 SW 12K Q4503 KRA103SRTK R4505 8.2K 5.2 V.REC_ST_H 0 COIL,BIAS OSC L4502 5.3 1626010 CTL+ CTL- R4501 15 560 0 AUDIO PB SW 0.7 R4502 Q4501 KTC3875S_Y_RTK 0 10K 6 1 5 2 4 3 C4506 100V 0.033 MMTS AUDIO PB SW Q4502 KTC3875S_Y_RTK 0 0.7 R4503 10K 0 C4511_1 6.3V 220 YK_P 0.015 B 3.3K R4510 R4507 1M C4534 0.0047 B R4522 220K 1/4W C4501 0.0022 B 0.022 B 6.3V 47 KA_P C4555 R4534 50V 1 KA_P C4550_1 R4539 R4544 0.1 B C4561 100CT3R502 3.579545MHz 680K 0.01 B X4501 4.7K 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 R4513 1.5K 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 C4521 0.068 B C4514 0.047 B C4522 0.047 B C4523_1 Y/C/AUDIO/HEAD AMP IC IC4501 LA71206M-MPB-E 2.2 0 4.0 1.8 0.7 0.7 0.7 5.0 1.7 1.8 0 2.0 2.0 2.0 0 2.2 4.9 2.3 0 0.5 2.8 60 59 COMPOUT ENV KILL DET DET HA GND CHROMA DET ACC DET P R P HA VCC HA PRE GND P R P A-GND 1 2 3 A-VCC C4559 R4559 2.2K 1/4W 0.1 B 0 0 0 4.8 4.8 4.8 5.0 1.9 2.6 4.0 3.3 3.3 2.3 NC 5.0 5.0 0 2.2 0.8 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 AUDIO C-ROT C-GND MUTE RF-SW HA SW IN SERAIL DECODER C-VCC VX01 320FH VCO SLD ALWAYS VDD 5V B 4Fsc PLL CLOCK 0 VSS 1.7 PR REC PB REC APC APC AFC TIMMING OUT OUT 0 DRIVER AUTO-BIAS BUFFER Q4509 KTA1504S_Y_RTK 1.7 0 2.3 VSS 3.0 R4557 RP BEFORE AFTER BGA BGA CCD CLAMP IN 2.8 C4565_1 82K 1/4W R4560 CNC BGA RP VCA 3.1 25V 10 KA_P 100K PB VCA H PR 3.58M AMP 3.1 C4570_1 L BPF2 CLAMP C-LPF Main CONV B-UP AMP B.D 2.6 C4566_1 50V 1 KA_P P VCP ACC P AMP R + ACC 4.21M BPF DET 3.58M BPF1 PB-C YNR/COMB VIDEO AGC 2.0 1 2 3 4.0 REG 4V 2.0 50V1 KA_P C4569 0.1 B C4572_1 25V 10 KA_P H L ALC R P ALC DET PB,EE Sub CONV LPF VREF REC PB,EE AMP DETAIL ENH P P R CLAMP NL EMPHA NL EMPHA R P Y-LPF R R N.L. DEEM PB-C NC1 Y/C MIX LINE AMP FM MOD R-EQ TEST NORMAL DOUBBLE LIM FM DEM REC FM-EQ SUB LPF MAIN DE-EM FM P R AGC PB FM EQ S-EQ PR PR VHS SOPB MUTE 1/2 BAL FBC TC1 R P R P AGC TC2 QV/QH 6DB SYNC SEP V.SYNC SEP Y-VCC 2.3 2.3 1.6 2.9 3.6 NC 0 4.9 2.8 C4567_1 50V 0.22 KA_P C4564_1 10V 33 KA_P 11 C4517 16V 22 KA_P 0.1 B C4524 C4518_1 0.1 B 6.3V 220 KA_P R4512 L4503 10 1/4W 100uH 0607 2.0 Vref 2.3V EQ AMP SP,LP REC:LP