ramsa_wrda7(2) 电路图.pdf

《ramsa_wrda7(2) 电路图.pdf》由会员分享，可在线阅读，更多相关《ramsa_wrda7(2) 电路图.pdf（83页珍藏版）》请在收音机爱好者资料库上搜索。

1、SPECIFICATIONS General Power requirement :AC 220 240 V 50 Hz Power consumption :105 W (with options) Frequency response :20 Hz - 20 kHz, +1 dB - 2 dB T.H.D. (total harmonic distortion) :Less than 0.1 % (input = +10 dB/1 kHz, output = +4 dB/RL 600 ) Equivalent input noise :128 dB (Rs = 150 Input sens

2、itivity = 60 dB typical) Residual noise :93 dB typical Maximum voltage gain :84 dB: MIC/LINE(1-16) in to BUS out 84 dB: MIC/LINE(1-16) in to MASTER out 84 dB: MIC/LINE(1-16) in to AUX out Common Mode Rejection Ratio :More than 80 dB (1kHz) Crosstalk :90 dB typical (1kHz) Dynamic Range (Fs = 48kHz, D

3、IN audio filter) : 113 dB typical : DA converter (digital in to analog out) 112 dB typical : AD converter (analog in to digital out) 110 dB typical : AD + DA (analog in to analog out) AD Converter :24 bit, 64 times oversampling (input 1 to 16) 20 bit, 64 times oversampling (aux returns 3 to 6) DA Co

4、nverter :24 bit, 64 times oversampling (MASTER, MONITOR A) 24 bit, 128 times oversampling (MONITOR B) 20 bit, 128 times oversampling (aux returns 3 to 6) Internal signal processing :32 bit (Dynamic range 192 dB) Sampling Frequency (Fs) :Internal: 44.1 kHz and 48 kHz External: 44.1 kHz 6 % and 48 kHz

5、 6 % Signal delay :Less than 2.5 ms, MIC/LINE input to MASTER out Audio Mixer WR-DA7 ORDER NO. AVS9807114C8 C 1998 Matsushita Communication Industrial Co., Ltd. A l l r i g h t s r e s e r v e d . U n a u t h o r i z e d c o p y i n g a n d distribution is a violation of law. The Meter Bridge shown

6、in photo is one of the optional accessories. Downloaded from www.M manuals search engine RadioFans.CN 收音机爱 好者资料库 This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-tech

7、nical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could

8、 result in serious injury or death. !WARNING CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. This symbol warns the user that uninsulated voltage

9、within the unit may have sufficient magnitude to cause electric shock. Therefore, it is dangerous to make any kind of contact with any inside part of this unit. This symbol alerts the user that impotant literature concerning the operation and maintenance of this has been included. Therefore, it shou

10、ld be read carefully in order to avoid any problems. There are special components used in this equipment which are important for safety. These parts are indicated by the ” Y ” mark on the schematic diagram and the replacement parts list. It is essential that these critical parts should be replaced w

11、ith manufacturers specified parts to prevent shock, fire, or other hazards. Do not modify the original design without permission of manufacture. IMPORTANT SAFETY NOTICE Dynamics Compressor Threshold :40 dB - 0 dB (1 dB/step) Ratio :1.0, 1.1, 1.3, 1.5, 1.7, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10,

12、 20, (16 points) Attack time :0 ms - 250 ms (1 ms/step) Release time :5 ms - 2000 ms (5 ms/step) Gain :0 dB - +12 dB (0.5 dB/step) Gate Threshold :80 dB - 15 dB (1 dB/step) Attack Time :0 ms - 250 ms (1 ms/step) Release time :5 ms - 2000 ms (5 ms/step) Expander Threshold :80dB - 15dB (1dB/step) Rati

13、o :1.0, 2.0, 3.0, 4.0, 5.0, 6.0, Attack time :0 ms - 250 ms (1 ms/step) Release time :5 ms - 2000 ms (5 ms/step) Range :0 dB - +40 dB (0.5 dB/step) Equalizer LOW band PEQ (parametric equalizer) type:Q = 0.5 - 50 (41 steps) F = 20 Hz - 20 kHz (1/12 oct step) G = 15 dB (0.5 dB/step) LOW band SHL (shel

14、ving low) type :F = 20 Hz - 1.6 kHz (1/12 oct step) G = 15 dB (0.5dB/step) LOW band HPF (high-pass) type :F = 20 Hz - 1.6 kHz (1/12 oct step) LOW-MID band PEQ type :Q = 0.5 - 50 (41 steps) F = 20 Hz - 20 kHz (1/12 oct step) G = 15dB (0.5dB/step) HIGH-MID band PEQ type :Q = 0.5 - 50 (41 steps) F = 50

15、 Hz - 20 kHz (1/12 oct step) G = 15 dB (0.5 dB/step) HIGH band PEQ type :Q = 0.5 - 50 (41 steps) F = 50 Hz - 20 kHz (1/12 oct step) G = 15 dB (0.5 dB/step) HIGH band SHH (shelving high) type :F = 1 kHz - 20 kHz (1/12 oct step) G = 15 dB (0.5 dB/step) HIGH band LPF (low-pass) type:1 kHz - 20 kHz (1/1

16、2 oct step) Downloaded from www.M manuals search engine RadioFans.CN 收音机爱 好者资料库 Delay :0 - 14,400 samples/0 - 300 ms (Fs = 48 kHz), 0 - 326 ms (Fs = 44.1 kHz) Phase :normal/reverse (switchable) Stereo meter :Bar graph type LED, Left and Right, 20 points for each VU or PPM (selectable), Peak hold on/

17、off, Fader :100 mm motor fader ( x 21), +10 db - 90 dB dB Display :LCD, 320 x 240 dot, with backlight Memory :SCENE MEMORY (Snapshot) 50 registers CHANNEL library50 registers EQUALIZER library50 registers DYNAMICS library50 registers AUTOMATION4 mix Ambient operating temperature :0 C - 40 C (32 F -

18、104 F) Dimensions (mm) :698 (W) x 244 (H) x 549.5 (D) Weight (without options) :23kg (51lbs) Finish :ABS resin (Top Panel), Blue black Standard Accessories :Power Cord, Users Guide, Warranty Card, Registration Card Dimensions and weights indicated are approximate. Specifications are subject to chang

19、e without notice. Digital In and Out 2TR IN (INPUT 15,16) : In/Out :In Format :IEC 958 Professional (AES/EBU) or Consumer (S/PDIF) switchable Level :RS-422 (AES/EBU) or 0.5 V pp/75 (S/PDIF) Connector :XLR 3-31 REC OUT : In/Out :Out Format :IEC 958 Professional (AES/EBU) or Consumer (S/PDIF) switchab

20、le Level:RS-422 (AES/EBU) or 0.5 Vpp/75 (S/PDIF) Connector :XLR 3-32 AUX RETURN 1/2 : In/Out :In Format :IEC 958 Consumer (S/PDIF) Level :0.5 V pp/75 Connector :RCA pin jack Input TypeSource ImpedanceSignal Level (Nominal-before clipping) Connector Type CH input 1-8 5 kmics, 50 - 600 60 dB - 46 dBXL

21、R 3-31 (bal) lines, 600 +10 dB - +24 dBXLR 3-31 (bal) CH input 9-16 5 kmics, 50 W - 600 60 dB - 46 dBTRS phone jack (bal) lines, 600 +10 dB - +24 dBTRS phone jack (bal) CH Insertion Returns 1-16 10 k lines, 600 +4 dB - +18 dBTRS phone jack (unbal) 2TR B IN (analog) 10 k lines, 600 +4 dB - +18 dBTRS

22、phone jack (bal) AUX returns 3-6 10 k lines, 600 +4 dB - +18 dBTRS phone jack (unbal) Input TypeOutput ImpedanceAdapted Load ImpedanceSignal Level (Nominal-before clipping) Connector Type MASTER L/R 5 k 150 lines 600 +4 dB - +18 dB XLR 3-32 (bal) AUX sends 3 - 6 75 lines 10 k +4 dB - +18 dB TRS phon

23、e jack (unbal) INSERTION 1 - 16 10 lines 10 k +4 dB - +18 dB TRS phone jack (unbal) REC OUT L/R (analog) 150 lines 10 k +4 dB - +18 dB TRS phone jack (bal) MONITOR A out L/R 150 lines 600 +4 dB - +18 dB TRS phone jack (bal) MONITOR B out L/R 150 lines 600 +4 dB - +18 dB TRS phone jack (bal) Headphon

24、es 8 phones 40 /8 400 mW/100mW Stereo phone jack (unbal) Analog Inputs (0 dB = 0.775 Vrms, 0 dBV = 1 Vrms) Analog Outputs (0 dB = 0.775 Vrms, 0 dBV = 1 Vrms) Downloaded from www.M manuals search engine RadioFans.CN 收音机爱 好者资料库 AUX SEND 1/2 : In/Out :Out Format :IEC 958 Consumer (S/PDIF) Level :0.5 V

25、pp/75 Connector :RCA pin jack WORD CLOCK IN : In/Out :In Level :TTL/75 switchable Connector :BNC WORD CLOCK OUT/THROUGH : In/Out :Out Level :TTL/75 , Pass-through (75 OFF) or termination (75 ON) Connector :BNC MIDI IN : In/Out :In Format :MIDI Connector :DIN Connector 5P MIDI OUT : In/Out :Out Forma

26、t :MIDI Connector :DIN Connector 5P TO PC : In/Out :In and Out Connector :Mini-DIN Connector 8P RS422/485 : In/Out :In and Out Connector : D-sub 9P FOOT SWITCH : In/Out :In Level :TTL level, Normally Open (Unlatch type) Connector :Phone jack Optional Accessories Meter Bridge : Type :Bargraph LED, 26

27、 channels, 15 points for each Format :RAMSA original Level NET II Power :DC 7 V Connector :D-sub 15P WR-ADTA (ADAT Interface card (8 in / 8 out) Type :ADAT (DIRECT OUT / BUS / AUX / MASTER, Input 9-32) In/Out :In and Out Connector :Optical WR-TDIF (TDIF Card (8 in / 8 out) Type :TDIF (DIRECT OUT / B

28、US / AUX / MASTER, Input 9-32) In/Out :In and Out Format :TDIF-1 Connector :D-sub 25P (in and out) WR-AESS (AES/EBU Card (8 in / 8 out) Type :AES/EBU/SPDIF Signal type :RS422 Connector :D-sub 25P (in and out) Downloaded from www.M manuals search engine WR-ADDA (A-D/D-A Card (8 in / 8 out) Input 1 -

29、8 (balanced) Indicated impedance :10k Nominal source impedance :50 600 Nominal input level :+4dB (1.23V) Maximum input level before clipping :+18dB (6.15V) Connector type :D-sub 25P Output 1 - 8 (balanced) Indicated impedance :10k Nominal source impedance :150 Nominal input level :+4dB (1.23V) Maxim

30、um input level before clipping :+18dB (6.15V) Connector type :D-sub 25P WR-SMPT (SMPTE/V SYNC Card) SMPTE IN In/Out :In Format :SMPTE (LTC) Signal type :nominal -10dBV / 10k Connector :XLR V SYNC In/Out :In Format :NTSC (B/W or color) / PAL Signal type :75 , termination Connector :BNC WR-TNDM (TANDE

31、M Card (for running two DA7mixers simultaneously) Type :TANDEM connection In/Out :In and Out Format :RAMSA SSA Signal type :RS422 Connector :D-sub 25P Downloaded from www.M manuals search engine CONTENTS Major Operating Controls and Their Functions.1 Self Check Procedure. 13 Wiring Diagram . 21 Bloc

32、k Diagram Overall Block Diagram. 22 Main Board (CPU Section) . 23 Main Board (Panel Control CPU Section). 24 Main Board (DSP Section-1) . 25 Main Board (DSP Section-2) . 26 Main Board (Audio Interface Section). 27 AD/DA Board (1/2). 28 AD/DA Board (2/2). 29 Fader Drive Board (1/2). 30 Input Switch B

33、oard/Fader Drive Board (2/2). 31 HA Board and INS Board. 32 Monitor VR/HP/TB Boards. 33 EFX Board . 34 Block Diagram . 35 Level Diagram. 36 Schematic Diagram Monitor VR/HP/TB Boards. 38 Bus Relay Board. 39 Power-1/Power-2 Boards. 41 HA Board and INS Board. 44 EFX/Meter Board. 45 Fader Drive Board . 47 Input Switch Board. 50 AD/DA Board (2/3). 52 AD/DA Board (3/3). 53 AD/DA Board (1/3). 54 Main Board (1/4). 55 Main Board (2/4). 56 Main Board (3/4). 57 Main Board (4/4). 58 WR-MTBR . 59 WR-TNDM .