Sanyo TRC-2050C Service Manual - Page 7

SCHEMATIC DIAGRAM (AMPLIFIER) DIC MIC41 DICT (L-CH) MIC42 CONF (R-CH) CN401 MIC 1 (L-CH) 1 2 6 3 4 5 CN402 MIC 2 (R-CH) 1 2 6 3 4 5 R-CH L-CH CN403 REMOTE 2.4 4.8 S4002 -1 R4043 100K S4001 -1 PLAY 7 IC403 -1 TC7WB66FK 1 2 REC R4718 2.2K IC404 TC7SB66FU R4730 1K GND 3 4 CE OUT 2 5 VDD IN 1 S4200 -1 S4200-2 R4830 1K 2 3 1 R4202 100K CONF 6 R4203 100K C4200 0.1 4 5 C4201 0.1 IC420 TC7WB66FK 8765 1234 R4204 2.2K R4205 2.2K S4201 CUE-INDEX D4200 POWER R4201 180 CONF DICT 3V GND CUE-INDEX LED 12345678 CONF DICT 3V GND CUE-INDEX LED 12345678 R4818 2.2K SP S4001:RECORD/PLAY SW S4002:TAPE SPEED SW S4003:PLAY SPEED SW S4004:PAUSE SW S4005:VAS SW S4200:REC MODE SW S4201:CUE-INDEX SW R4045 100K IC409 TC7WB66FK 8765 1234 Q4902 2SB1295 R4908 47K Q4903 KRC103S C4702 8200P C4703 0.015 R4753 0 R4717 4.7K C4707 0.1 R4709 6.8K R4710 10K C4716 1000P C4715 0.01 R4708 4.7K C4701 47;6.3-T (B2) -2 TC7WB66FK R4703 680 5 6 3 R4704 C4704 56 4.7 C4750 0.01 VR401-1 10K R4707 C4706 5.6K 0.047;B R4706 18K R4711 470K C4708 47;6.3-T (B2) C4709 1.0 S4005 R4712 1M C4710 0.47 R4713 560K R4714 C4711 18K 0.47 R4715 C4713 1 0.1 R4716 C4714 1 0.1 C4731 0.1 R4705 C4705 27K 4700P C4751 0.01 R4044 100K 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 IC401 LA4167M R4720 6.8K 123 (L-CH) 5 4 IN VDD OUT CE GND IC408 TC7SB66FU D4701 UDZS10B C4730 0.022 PAUSE VREF CUE-TONE 1.6 PRE-NF 1.5 PRE-OUT RX 300K EQ 51.5dB 1.6 REC-IN 1.6 REC-OUT 0 ALC-CONT MIC REC 20K RX 0 VAS VOX-CONT ALC 1.4 0 VOX VOX-DELAY VOX 0 CUE TONE ON/OFF CUE TONE OSC 1.6 1.6 CUE TONE OUT 1.6 POWER-IN 1.2 1 POWER-OUT1 0 POWER GND R.F 1.2 2 POWER-OUT2 3.0 VCC 0 PRE-GND 2K RX MIC VCC 1.6 EQ-IN RX 1.6 MIC-IN 1.6 VREF-OUT 2.7 MIC-VCC 1.6 AF-OUT 0.2 LED-DRIVE 1.6 2.7 R/P-SW 0.7 PAUSE 1.2 R/P-MUTE 0.2 GVN-CONT 1.3 GVN-VREF R/P 2.8 VS 0 GVN-GND GVN GVN-OUT 1.7 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 R4014 10K R4719 3.3K C4720 3900P C4721 C4722 4700P 0.1 C4727 0.1 C4723 47;6.3-T (B2) C4724 220;4 C4725 220;4 C4726 22/6.3 OFF S4004 ON R4752 1K R4723 120K R4012 3.3K R4013 1K VR471 1K 4.8 S4002-2 R4727 560 2.4 R4728 470 S4001-2 REC Q4003 C2412K S4003 IC405 -1 TC7WB66FK 6 C4802 8200P R4810 10K D4001 DAN202K 3 R4021 10K PLAY Q4002 C2412K R4034 10K 6.8K 0.1 C4807 R4809 Q4001 C2412K 5 SLOW NOR C4803 0.015 FAST R4022 2.2K R4023 2.2K R4025 10K R4024 10K C4841 2.2 Q4004 C2412K R4026 8.2K R4027 R4028 680 10K R4029 10K Q4005 C2412K Q4006 D1048 R4030 5.6K R4032 10K R4031 130 R4817 4.7K R4841 470K R4808 4.7K S4001-3 PLAY 1 R4803 680 R4804 56 C4851 0.01 C4804 4.7/25 C4805 R4805 4700P 27K C4850 0.01 VR401-2 10K C4806 0.047 R4807 5.6K R4806 18K R4811 470K REC R4853 0 C4808 47/4 C4809 1.0 R4812 1M C4810 0.47 C4811 R4814 0.47 18K C4815 0.01 C4812 47;6.3-T R4813 560K C4816 1000P R4033 910 C4842 2.2 IN VDD OUT CE GND IC406 TC7SB66FU C4831 0.1 123 54 R4815 1 C4813 0.1 R4816 C4814 1 0.1 C4801 47;6.3-T (B2) 2 7 -2 R4015 4.7K TC7WB66FK 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 R4003 4.7K R4901 1.5K 123 C4901 220/4 (R-CH) IC402 LA4167M PAUSE VREF CUE-TONE 1.6 PRE-NF 1.5 PRE-OUT RX 300K EQ 51.5dB 1.6 REC-IN 1.6 REC-OUT 0 ALC-CONT MIC REC 20K RX 0 VAS VOX-CONT ALC 1.4 0 VOX VOX-DELAY VOX 0 CUE TONE ON/OFF CUE TONE OSC 1.6 1.6 CUE TONE OUT 1.6 POWER-IN 1.2 1 POWER-OUT1 0 POWER GND R.F 1.2 2 POWER-OUT2 3.0 VCC 2K RX MIC VCC 0 PRE-GND 1.6 EQ-IN RX 1.6 MIC-IN 1.6 VREF-OUT 2.7 MIC-VCC 1.6 AF-OUT 0.2 LED-DRIVE 1.6 2.7 R/P-SW 0.7 PAUSE 1.2 R/P-MUTE 0.2 GVN-CONT 1.3 GVN-VREF R/P 2.8 VS 0 GVN-GND GVN GVN-OUT 1.7 54 R4035 120K R4820 6.8K C4820 3900P C4821 4700P C4822 0.1 C4828 0.1 C4823 47/4 C4824 220;4 C4825 220;4 C4826 22/6.3 R4823 120K R4011 100K R4701 39 R4004 4.7K Q4007 XP151A13A0MR R4801 39 R4819 3.3K PLAY S4001-4 REC R4001 470K This is a basic schematic diagram. - 6 - Q4011 KRC103S Q4010 KRC103S Q4009 KTA1504 R4002 47K - 7 - R4010 100K Q4008 XP151A13A0MR D4002 1SS355 D4003 1SS355 IN VDD OUT CE GND IC407 TC7SB66FU C4830 0.022 D4801 UDZS10B D4901 UDZS10B C4031 470/4 D4921 RB161M CN491 CN405 HEAD PHONE 1 2 6 3 4 5 C4030 220/4 POWER SW