Jun,1999 SC-8850 1 2 3 4 5 6 7 8 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20 20 20 20 21 21 21 21 22 22 22 22 23 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 27 27 27 27 28 28 28 28 L R OUTPUT 1 2 (A) (B) (C) YKC21-3793 INPUT D D L R OUTPUT-1 (L) OUTPUT-1 (R) TER1 2 3 4 1 INPUT(L) INPUT(R) M5218AFP + (Fram e) IC2C YKC21-3793 D YKC21-3793 OUTPUT-2 (L) OUTPUT-2 (R) JK2 D YKC21-3793 + 15 8 4 - - 15 JK2 B 32 42 31 L5 C26 0.1 A JK2A L8 C48 0.1 A D 10 20 D A L4 L6 12 22 11 YKC21-3793 C12 0.1 UPC4570G + C14 0.1 R17 100 C22 1000p R30 100 C34 1000p L7 L9 JK2 C D 0.1 IC3C 33k A 33k A R38 220 C43 1000p A R43 220 C51 1000p A 52 62 51 L11 C64 0.1 A + 15 8 4 - 15 PHL R15 10k R14 10k C20 33/16 R20 Q1 A 2SC3326A PHR R27 10k C32 33/16 R33 Q2 A 2SC3326A C41 33/16 R39 R40 100k A C49 33/16 R42 22k R45 R44 100k A L10 L12 - A R16 470 2 3 A A R29 470 2 3 A A R37 22k 100k A 100k A R56 100 R55 470 C58 33/16 C59 1000p R71 470 R72 100 C68 1000p C13 C15 0.1 1 R22 10k M5218AFP MUTE 1 R35 10k M5218AFP MUTE A A 33k A 33k A 0dB C17 33p - 6 5 7 + IC2B C27 33p R28 10k - 2 3 1 + IC2A C39 33p R36 22k - 2 3 1 + IC4A UPC4570G C45 33p R41 22k - 6 5 7 + IC4B UPC4570G R58 A 2SC3326A C67 33/16 R73 A 2SC3326A R21 10k R34 10k 0dB 2 3 Q4 A 2 3 Q6 A HeadPhone A C44 33/16 13 23 C47 33/16 0dB 1 R60 10k MUTE 1 R74 10k MUTE (Mini-Jack) CN4 B8B-PH-K-S 6 6 7 7 8 8 22 12 C54 33p R48 10k - 2 3 1 + IC5A M5218AFP C61 33p R65 10k - 6 5 7 + IC5B M5218AFP 2 2 3 3 4 4 5 5 D VR1A 1 A A A YKB21- 5130 1 1 VOLSW C19 33/16 C31 33/16 VR1B 10 D R51 10k R68 10k PHONES BOARD JK 1 2 3 1 L2 C10 0.1 +5 D R9 10k IC3A UPC4570G IC3B UPC4570G 20 IC7A UPC4570G IC7B UPC4570G ANALOG BOARD ASSY (71344745) / PHONES BOARD ASSY (71344756) L1 C5 330p C6 330p L3 fc=16kHz R10 18k(0.5%) C16 390p(F) - 2 3 1 + R23 18k(0.5%) R24 10k(0.5%) C25 390p(F) - 6 5 7 + UPC4570G + fc=16kHz +5.1dB R46 18k(0.5%) R47 10k(0.5%) C55 390p(F) - 2 3 1 + R62 18k(0.5%) C62 390p(F) - 6 5 7 + +5.1dB R11 10k(0.5%) R13 18k(0.5%) R18 100k C21 2200p(F) A R26 18k(0.5%) C33 2200p(F) A + 15 IC4C - 15 R50 18k(0.5%) C57 2200p(F) A R64 10k(0.5%) R67 18k(0.5%) C66 2200p(F) A 1 1 2 2 3 3 51048-0300 (WireTrap) (CableHolder) R12 10k(0.5%) A R25 10k(0.5%) A A 8 4 - A R49 10k(0.5%) A R66 10k(0.5%) A CN3 R19 100k A R32 100k A C40 0.1 C42 0.1 R54 100k A R70 100k A RibonCable 3x150 C18 33/16 C30 33/16 R31 100k C56 33/16 R53 100k C65 33/16 R69 100k CN2 1 1 2 2 3 3 52147-0310 5.6Vp-p A 5.6Vp-p 5.6Vp-p A A 5.6Vp-p R3 68(1/2W) (5025) A R7 68(1/2W) (5025) R80 100k A R81 100k A +5 D C53 220/16 C52 D C46 100/25 C50 100/25 DA2L DA2R DA1L DA1R VOLSW A M5218AFP + C70 47/16 C71 47/16 +5 D D + 15 A - 15 CN5 B6B-PH-K-S 1 1 2 2 3 3 4 4 5 5 6 6 IC5C IC1B NJM4556AM IC1A NJM4556AM 0.1 C38 33/16 + 15 + 15 8 4 - A A - 15 - 15 R2 10k - 6 5 7 + R6 10k - 2 3 1 + C37 0.1 A Wiring 6X150 0.1 0.1 33p R4 33k A 33p R8 33k A + 15 +5 A IN 1 OUT 3 A HeatSink) (with SRA-2500 MUTE C60 0.1 C24 C29 R1 10k A C1 R5 10k A C9 SWITCHING POWER SUPPLY WIRING 7X100-P2.5 BOARD AN7805F COM 2 A (TO-220) Main BOARD 2SA1037KR 1 - 15 - 15 IC7C UPC4570G + C2 33/16 C11 33/16 (Board-In) MAIN WIRING 8X80-P2.5 (Board-In) IC6 + 15 Q10 R61 1k Mute Contr ol 8 4 PHL PHR CN6 CN7 C36 0.1 A 3 2 R75 10k D - A NJM4556AM + A +5 D 1 1 2 2 3 3 4 4 5 5 6 6 7 7 D A +5 A A D 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 D A R59 10k C63 2.2/50 C23 0.1 C28 0.1 C4 10/25 IC1C C8 10/25 + 15 - 15 +5 D + 15 - 15 A C35 10/25 MRST NC 1 NC 2 NC 3 NC 8 DLY 5 M51953BFP + 15 8 4 - - 15 + 15 R57 22k RST 6 VCC 7 GND 4 IC8 C3 0.1 A C7 0.1 L20 +5 D D A B C D E F G H I J K L M N O P Q R S T U 20 1 2 1 2 1 2 3