Teac Tascam Model 3 Mixer Service Manual 电路图.pdf

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1、 RadioFans.CN 收音机爱 好者资料库 I . INTRODUCTION F u l f i l l i n g the needs o f people w i t h more t a l e n t than money i s the fundamental premise on which TEAC Tascam Series recording gear i s b u i l t . So we designed the Model 3 t o be as v e r s a t i l e as possible. With the r i g h t combina

2、tion o f features and functions f o r home o r studio recording, PA o r disco mixing. The Model 3 j u s t about does it a l l . Youll f i n d it a s u r p r i s i n g l y functional mixer, and i t s w i t h a c e r t a i n pride t h a t we now begin t o te11 you how it works, some o f the many thing

3、s you can do w i t h it, and how t o service it. The Model 3 i s manufactured i n our professional products division, and incorporates the same design philosnphy as the highly successful TEAC Tascam Series Model 10 mixing console. Many o f the parts, c i r c u i t s , and production assembly procedu

4、res are the same. Also, the design alternatives t h a t were chosen f o r cost purposes were exhaustively researched and tested t o avoid any compromise i n performance. RadioFans.CN 收音机爱 好者资料库 2. SPECIFICATION Input/output channel s Input se1 ector Mic input Mic impedance Input impedance Nominal in

5、put level Minimum input level Maximum input level Phono input Input impedance Nominal input level Minimum input level Line input Line impedance Nominal input level Minimum input level Maximum input level Line output/Aux. output Load impedance Nominal output level Maximum output level Monitor output

6、Load impedance Nominal output level Maximum output level Headphones Load impedance Maximum output level Frequency response Signal t o noise ratio, overall One mic input 8 mic inputs One l i n e input 8 l i n e inputs One phono input 8 input/4 output Chan. 1 % 4 M I C (LOW Z)/OFF/LINE Chan. 5 6 M I C

7、 (LOW Z)/PHONO/LIIVE Chan. 7 % 8 M I C (HIGH Z)/PHONO/LINE Hi-Z: 10K ohms Lo-Z: 200 ohms Hi-Z: greater than 100K ohms Lo-Z: greater than 1K ohms -50dB (3 mV) -66dB (0.5 mV) t10dB (3V) w140dB attenuator Greater than 45K ohms -54dB ( a t 1KHz) -60dB ( a t 1KHz) Greater than 20K ohms -10dB (0.3V) -1 6d

8、B +24dB (15V) Greater than 10K ohms -10dB (0.3V) +14dB (5V) Greatei- than 10K ohms -2dB (0.78V) +16dB (6.3V) 8 ohms 1 W (rear panel ) , 100mW ( f r o n t panel ) 30Hz 20KHz, 12dB (measured a t nomina1 input levels) Hi-Z: greater than 65dB WTD, 60dB UNWTD LO-Z: greater than 75dB WTD, 70dB UNWTD Great

9、er than 6OdB WTD, 55dB UNWTD Greater than 75dB WTD, 70dB UNWTD Greater than 73dB WTD, 68dB UNWTD Greater than 65dB WTD, 55dB UNWTD RadioFans.CN 收音机爱 好者资料库 Equa1 ization Crosstal k Distortion, overall (Mic input t o output) Fader attenuation Send and receive data Accessory send level Accessory recei

10、ve l evel Bus input, sub-mix buss input Input impedance Nomi nal l evel Monitor input Input impedance Nominal level Sub-mix input Input impedance Nominal level Cue output Load impedance Nominal level Direct output Load impedance Nominal level Power requirements Peak and d i p type, il5dB continuousl

11、y variable Hi-band - 3KHz % lOKHz, switchable lo-band - 75Hz % 200Hz, switchable Greater than 60dB ( a t 1KHz) 0.3% THD maximum Greater than 60dB Nominal -10dB (0.3V) i n t o 10K ohms o r higher Nominal -10dB (0.3V) i n t o 10K ohms o r higher Greater than 10K ohms -2dB (0.78V) Greater than 10K ohms

12、 -2dB (0.78V) Greater than 10K ohms -10dB (0.3V) Greater than 10K ohms -10dB (0.3V) Greater than 10K ohms -10dB (0.3V) 117V (200V, 220V%240V, 250V) AC, 50/60Hz, 40W MIC IN ILO-zl LINE IN MIC IN (LO-II PHONO MIC IN 1111-11 PHONO CHAN 1 - 4 CHAN 1-4 CHAN 5.6 CHAN 5,6 CHAN 5,6 CHAN 7,8 CHAN 7.8 CHAN 7.8 MONITOR OUT LEFT 7 SUE Y I X S U B M I X I N 1201 YASTER anwr 0 - 1-101 - - 1-101 - - Oy - YIX l 2 I sue wix IN O I 1.81 1-io1 1 1 O 3 7 J SUE MIX OUT HEADPHONES (FRONTI IMAX 100mW/Bfll HEADPHONES (REARI IMAX IW/BLll 4. OPENING T H E PACKAGE