Toshiba MW30G71 Service Manual - Page 93

A B C D E F Y/C/A/HEAD AMP SCHEMATIC DIAGRAM 8 (VCR PCB) G H R4545 FSC 1K L4506 P.CON+5V_VCR 100uH 0305 Y/C_DATA Y/C_CLK P.CON+5V_VCR 12K Y/C_CS H.SW 12K 1/4W R4528 C_ROTARY VCR_A_MUTE R4523 H.AMP_SW1 COMP ENV_DET 47uH 0305 L4505 R4530 22K R4525 22K BUFFER 12 Q4507 KTC3875S_Y_RTK R45374.0 5.0 1.8K 3.4 1/4W 7 R4541 3.3K 8.2K C4546 50V1 KA 6.3V 47 KA C4545 R4524 47K C4556 0.01 B 0.022 B 1.5K C4549 50V 1 KA C4547 0.022 B C4535 0.1 B FROM/TO Hi-Fi C4543 C4519 0.1 B NORMAL_A Y/C_AUDIO FSC R4534 C4555 C4558 6.3V 47 KA R4539 HF2 R4544 0.1 B C4561 50V 1 KA 100CT3R502 X4501 3.579545MHz HF_COM HF1 C4550 680K 0.01 B C4559 R4559 2.2K 1/4W 6 FROM/TO CYL Y/C/AUDIO/HEAD AMP IC IC4501 LA71206M-MPB-E 0.5 2.8 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 0.1 B 0 2.2 0.8 4.7K 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 R4513 820 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 CP4501 TOC-C09X-A1 9 HF1 (R) C4521 0.068 B 60 59 58 57 56 55 54 53 52 51 2.2 COMPOUT ENV AUDIO C-ROT C-GND KILL DET MUTE RF-SW SERAIL C-VCC 0 DET HA SW IN DECODER 50 49 48 47 VX01 320FH VCO SLD 46 45 44 ALWAYS VDD 5V B 43 42 4Fsc PLL 41 CLOCK 0 VSS 1.7 BUFFER Q4509 KTA1504S_Y_RTK 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) L4501 P.CON+5V_VCR C4514 0.047 B C4522 0.047 B HA GND 4.0 CHROMA DET 1.8 ACC DET 0.7 P 0.7 R 0.7 H P L 5.0 HA VCC PR REC PB REC APC APC AFC PR C-LPF RP BEFORE AFTER BGA BGA BGA RP Main CONV 3.58M BPF2 B-UP AMP CNC PB AMP B.D P TIMMING OUT OUT 0 DRIVER AUTO-BIAS VSS 3.0 CCD CLAMP IN 2.8 VCA 3.1 VCA 3.1 CLAMP 2.6 VCP 1.7 0 2.3 R4557 C4565 82K 1/4W R4560 50V 1 KA 100K C4566 C4570 50V1 KA C4502 1B C4505 0.33 B C4508 6.3V 47 KA 22uH 0305 1.7 1.8 0 HA ACC P AMP R + ACC 4.21M BPF DET 3.58M BPF1 PB-C YNR/COMB VIDEO AGC 2.0 50V1 KA 1 2 3 4.0 REG 4V 2.0 C4569 0.1 B C4575 25V 10 KA 4 PRE GND 2.0 P H 2.0 L R 2.0 P Sub CONV PR R P DETAIL ENH R CLAMP 1/2 N.L. P DEEM PB-C FBC NL EMPHA NL EMPHA Y-LPF R NC1 Y/C MIX R P R P FM 2.3 BAL TC1 2.3 1.6 AGC TC2 C4567 50V 0.22 KA C4564 0 MOD 2.9 10V 33 KA A-GND 2.2 1 2 ALC 4.9 3 A-VCC 2.3 ALC DET R-EQ TEST NORMAL DOUBBLE FM QV/QH 6DB SUB LIM DEM LPF 3.6 R P LPF LINE AMP REC FM-EQ MAIN DE-EM SYNC SEP V.SYNC NC 0 SEP VREF FM P R AGC PB FM EQ S-EQ PR PR 4.9 Y-VCC 3 CD4501 2F061502 FFC FROM/TO HEAD AUDIO CONTROL CP4502 IMSA-9604S-06C 6 AUDIO REC NORMAL_A R4504 12K P.CON+5V_VCR 5.2 V.REC_ST_H 0 SWQ4503 5.3 C4523 R4505 12K C4517 16V 22 KA 0.1 B C4524 C4518 6.3V 220 KA 0.1 B R4512 L4503 10 1/4W COIL,BIAS OSC L4502 1626009 100uH 0305 R4509 0 2.0 Vref 2.3V 12 PB,EE EQ AMP SP,LP PB,EE REC:LP