Primare-PRE30-pre-sch 电路图 维修手册.pdf

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1、PRE30 PRE-AMPLIFIER SERVICE MANUAL VOLUME PRE-AMPLIFIER DC AU A V T A UT TAPE OUT B 1 2B LEVELSURR OPERATE STANDBY PRE30 RadioFans.CN 收音机爱 好者资料库 CONTENTS CIRCUIT DIAGRAMS1. TECHNICAL SPECIFICATIONS2. RadioFans.CN 收音机爱 好者资料库 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:7-Dec-200

2、1 Sheet of File:E:PRIMAREPRE30SCHEM1133-3.SCHDrawn By: P1.0/T2 2 P1.1/T2EX 3 NIC* 12 P1.2/ECI 4 P3.1/TxD 13 P1.3/CEX0 5 P3.2/INT0 14 P1.4/CEX1 6 P3.3/INT1 15 P1.5/CEX3 7 P3.4/TO/CEX3 16 P1.6/SCL 8 P3.5/T1/CEX4 17 P1.7/SDA 9 P3.6/WR 18 RST 10 P3.7/RD 19 P3.0/RxD 11 Vss 22 XTAL2 20 NIC* 1 XTAL1 21 Vcc

3、 44 P0.0/AD0 43 P0.1/AD1 42 P0.2/AD2 41 P0.3/AD3 40 P0.4/AD4 39 P0.5/AD5 38 P0.6/AD6 37 P0.7/AD7 36 EA/Vpp 35 NIC* 34 ALE 33 PSEN 32 P2.7/A15 31 P2.6/A14 30 P2.5/A13 29 P2.4/A12 28 P2.3/A11 27 P2.2/A10 26 P2.1/A9 25 P2.0/A8 24 NIC* 23 U4 89C660 NC 1 LX 2 SX 3 NC 5 SY 6 LY 7 VCC 8 GND 4 U582B715 A0 1

4、 A1 2 A2 3 SDA 5 SCL 6 NC 7 VCC 8 VSS 4 U6 PCD8582 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P2 HEADER 10X2 VCC 2 VOUT 1 GND 3 IR2 R15 10R C9 10u 16V R16 10K +5V IR-RECEIVER INPUT SELECTOR 1 11 2 12 3 13 4 1 5 2 6 3 7 4 8 5 9 10 A 9 B 7 C 6 D 14 U7 74HCLS147D VCC R18 4K7K R19 4K7 R20 4K7 C1

5、0 100N C11 100N C12 100N R21 100R C13 100N SW1 SW-12WAY X2 20MHz C20 10p C21 22p L1 INDUCTOR Q3 BC850 Q4 BC850 R22 R23 R24 R25 R26 R27 R28 G 1 DP 2 A 3 F 4 COM1 5 COM2 10 B 9 C 8 E 7 D 6 DISP2 DUAL_DISP +5V SER 14 SRCLK 11 SRCLR 10 RCLK 12 E 13 O0 15 O1 1 O2 2 O3 3 O4 4 O5 5 O6 6 O7 7 Q7 9 VCC 16 GN

6、D 8 U8 74HC595 +5V +5V 7X470R SER 14 SRCLK 11 SRCLR 10 RCLK 12 E 13 O0 15 O1 1 O2 2 O3 3 O4 4 O5 5 O6 6 O7 7 Q7 9 VCC 16 GND 8 U9 74HC595 +5V R331K33 R34 1K33 R36 1K33 R37 1K33 R38 1K33 C14 100N C15 100N SER 14 SRCLK 11 SRCLR 10 RCLK 12 E 13 O0 15 O1 1 O2 2 O3 3 O4 4 O5 5 O6 6 O7 7 Q7 9 VCC 16 GND 8

7、 U10 74HC595 +5V C16 100N D1 R41 1K33 B 1 COM 2 A 3 SW8 ENCODE-EC16 +5V R391K33 R40 1K33 VOLUME C17 100N C18 100N C22 220U/16V R42 1K R46 10R R43 1K R47 10R 1 2 3 4 P3 C23 22UF R48 10K +5V +5V +5V D13 BYD17 SW3 SW-12WAY GND +5V R50 1K C19 100N R51 100R +5V 1 2 JP1 HEADER 2 R49 10K +5V FLASH DOWNLOAD

8、 R44 1K R45 1K +5V D2D3D4D5D6D7D9D10D11D12 R52 1K33 R53 1K33 R55 1K33 1 2 3 4 SW9 1 2 3 4 SW10 1 2 3 4 SW11 R1 4K7 R2 4K7 R3 4K7 R4 4K7 R5 4K7 R6 4K7 +5V R7 4K7 R8 4K7 R9 4K7 R10 0R R11 0R R12 0R C3 220U/16V C2 100N D8 R13 1K33 VCC+5V Q2 BD140 Q1BC850 R14 10k R17 22k 1 2 JP2 HEADER 2 R29 1R +5V R30

9、22K R31 10R C1 100N DISPALY EM1133-3 1/1 BN ON/OFF +5V ON/OFF G 1 DP 2 A 3 F 4 COM1 5 COM2 10 B 9 C 8 E 7 D 6 DISP1 DUAL_DISP R32 1K33 R35 10K R54 10K R56 1K R57 1K +5V RadioFans.CN 收音机爱 好者资料库 TECHNICAL SPECIFICATIONS Analogue inputs 2 x XLR 5 x RCA Analogue outputs 1 x XLR 2 x RCA Analogue record output 1 x RCA Sensitivity RCA 280mV XLR 560 mV Sensitivity adjustment +20dB Frequency response DC-100KHZ, -0.1db Tape output 280mV Gain 16dB Signal to noise A-weighted -118 dB THD+noise 0.01% DIMENSIONS (WXDXH) 430X385X100 MM Weight 9.5Kg