Teac-TascamDM24-mix-sm 维修电路原理图.pdf

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1、Effective : July, 2002S-0065SERVICE MANUALCONTENTS1. SPECIFICATIONS 22. SELF DIAGNOSTIC FUNCTION 73. HOW TO CHECK THE MAIN PCB VERSION 204. DOWNLOADING & BACKING-UP THE SRAM DATA215. UPDATING THE PROGRAM 236. ERROR MESSAGES 297. BLOCK DIAGRAMS 388. EXPLODED VIEWS AND PARTS LIST 579. PC BOARDS AND PA

2、RTS LIST 6510. INCLUDED ACCESSORIES 90目次1. 仕様 22. 自己診断機能 73. MAIN PCB Version確認方法 204. SRAM 215. 236. 297. 388. 分解図 579. 基板図 6510. 付属品 90D DMM- -2 24 4Digital Mixing ConsoleINSTRUCTIONS FOR SERVICE PERSONNELBEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-CUR-RENT OR RESISTANCE MEASUREMENTS

3、TO DETERMINE THAT EXPOSEDPARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT.RadioFans.CN 收音机爱 好者资料库21. SPECIFICATIONS仕様TASCAM DM-24All specifications are given with the factory referencelevelof 16dBFS.MIC inputs (channels 1 through 16)Balanced XLR-type female connectors(1=ground, 2=hot, 3=cold)A

4、djustable input level: 56dBu (TRIM max) to 2dBu(TRIM min)Input impedance: 2.2kPHANTOM (+48V)+48V phantom power. Switchable in blocks of 4 chan-nels (14, 58, 912, 1316)LINE IN (BAL) inputs (channels 1 through 16)Balanced 1/4” jacks (sleeve=ground, ring=cold, tip=hot)Adjustable input level: 42dBu (TRI

5、M max) to +12dBu(TRIM min)Input impedance: 10kINSERT connections (channels 1 through 16)1/4” TRS jacks (sleeve=ground, ring=return, tip=send)Send: nominal output level 2dBu, maximum outputlevel +20dBu, output impedance 100Return: nominal input level 2dBu, headroom 16dB,input impedance 10kASSIGNABLE

6、RETURNS (BAL) (1 through 4)Balanced 1/4” jacksNominal input level: 2dBuHeadroom: 16dBInput impedance: 5kASSIGNABLE SENDS (1 through 4)Quasi-balanced 1/4” jacksNominal output level: 2dBuMaximum output level: +14dBuOutput impedance: 1002 TR IN (L/R)2 x RCA pin jacksNominal input level: 10dBVHeadroom:

7、16dBInput impedance: 10kSTEREO OUTPUT (L/R)Balanced XLR-type male connectorsNominal output level: +4dBuMaximum output level: +20dBuOutput impedance: 100STEREO INSERT (L/R) 1/4” TRS jacksSend: nominal output level 2dBu, maximum outputlevel +14dBu, impedance 100Return: nominal input level 2dBu, headro

8、om 22dB,impedance 10k入出力出力仕様基準 16 dBFS（Full Scale） （標準設定） 仕様表示。対応基準 20 dBFS 9dBFS 変更場合、最大出力（0 dBFS時出力）変。MIC 入力（CH1-16）XLR331、（1 :GND 、2 :HOT 、3 :COLD）入力 : 2.2 k 入力 : 56 dBu 2 dBuLINE IN 入力（CH1-16 ）6 、（Tip : HOT、Ring : COLD、Sleeve : GND）入力 : 10 k 規定入力 : 42 dBu12 dBuOL （CH1-16） INPUT MIC/LINE 入力設定越点灯（

9、SETUP 画面設定）設定 : OVER、0、2、4、6、8、10、12、18、30、42（dB）中選択PHANTOM（+48V） 48V 電源 4 単位（1-4、5-8、9-12、13-16）可能INSERT（CH1 16）6 3極（TRS）、（Tip :SEND、Ring :RTN、Sleeve :GND）SEND（Tip）出力 : 100 規定出力 : 2 dBuRETURN （Ring）入力 : 10K 規定入力 : 2 dBuASSIGNABLE RETURNS（BAL） （1 4）入力 : 5 K規定入力 : 2 dBuASSIGNABLE SENDS（14）出力 : 100 規定

10、出力 : 2 dBuSTEREO OUTPUTS （BALANCED）XLR-3-32 、（1 : GND 、2 : HOT 、3 : COLD ）出力 : 100 規定出力 : 4 dBu（16 dBFS）RadioFans.CN 收音机爱 好者资料库3TASCAM DM-24STEREO INSERT 63極（TRS）、（Tip : SEND 、Ring : RTN 、Sleeve : GND）SEND（Tip）出力 : 100 規定出力 : 2 dBuRETURN（Ring）入力 : 10K 規定入力 : 2 dBuMONITOR OUTPUTS - CR（BAL）6、（Tip : HO

11、T 、Ring : COLD 、Sleeve : GND）出力 : 100 規定出力 : +4 dBu（ 16dBFS）/CR VR MAX 時MONITOR OUTPUTS - STUDIO6、出力 : 100 規定出力 : 10 dBu（ 16dBFS）DIM CR 出力 0 dB 40 dB 範囲 （MONITOR 画面設定）減衰PHONES 出力6最大出力 : 120 mW +120 mW（33 負荷時）2TR INRCA 、入力 : 10 K 規定入力 : 10 dBV入出力TDIF-1（1、2、3） : D-sub 25 : TDIF-1 規格準拠ADAT IN/OUT : TOS

12、LINK : ADAT規格準拠DIGITAL INPUTS（1、2） : XLR-3-31/ RCA : AES3-1992（AES/EBU）IEC-60958（S/PDIF）規格準拠（自動検出）周波数変換機能内蔵MONITOR OUTPUTS (CR (BAL)Balanced 1/4” jacksNominal output level: +4dBu (CR VR max.)Maximum output level: +20dBu (CR VR max.)Output impedance: 100MONITOR OUTPUTS (STUDIO)RCA pin jacksNominal ou

13、tput level 10dBVMaximum output level: +6dBVOutput impedance: 100PHONES 2 x 1/4” stereo jacksMaximum output level: 120 mW + 120 mW (33 load)DIGITAL INPUTS (1, 2)2 x XLR-type female connectors (input impedance 110)2 x RCA pin jacks (input impedance 75)AES3-1992 or IEC60958 data format (automaticallyde

14、tected)24-bit word lengthSwitchable sampling frequency conversion availableDIGITAL OUTPUTS (1, 2)2 x XLR-type male connectors (output impedance 110)2 x RCA pin jacks (output impedance 75)AES3-1992 or IEC60958 data format (software selec-table)24-bit word lengthTDIF-1(1, 2, 3)3 x 25-pin D-sub connect

15、ors (metric lock screws)Conform to TDIF-1 standard24-bit word lengthADAT IN/OUT2 x “Lightpipe” optical connectorsConform to ADAT OPTICAL specifications24-bit word lengthSampling frequenciesInternal 44.1kHz/48kHz, 88.2kHz/96kHz (high samplingfrequencies)External 6.0% ofIsWORD SYNC INBNC connectorSwit

16、chable 75 terminationTTL levelWORD SYNC OUT/THRUBNC connectorSwitchable between through and outputTTL level4TASCAM DM-24DIGITAL OUTPUT（XLR） : XLR-3-32/ RCA : AES3-1992（AES/EBU）IEC-60958（S/PDIF）選択可周波数44.1 kHz、48 kHz、88.2 kHz、96 kHz（外部同期時許容周波数偏差： 6%）同期制御他WORD SYNC IN 入力: : BNC （）TTL 、75 ON/OFF 切替WORD

17、SYNC THRU/OUT 出力: : BNC （）THRU OUT選択可TTL 、75 RS-422: : D-sub 9 （）RS-422 準拠、 9 （P2）用GPI : : D-sub 9 （）TO METER : : D-sub 25 （） 、（MU-24）接続用MIDI IN 、OUT 、THRU : 5 DIN MIDI 規格準拠EXT SW6、2極TC IN 入力:RCA （）入力 : 20K 入力 : 30 dBVMIDI IN, OUT, THRU/MTC OUT3 x 5-pin DIN connectorsconform to MIDI specifica-tionsT

18、IME CODE INRCA pin jackConforms to SMPTE specificationsDTRS REMOTE OUT15-pin D-sub male (metric lock screws)Conforms to DTRS SYNC standardEXT SW1/4” mono jackTO METER25-pin D-sub connector (non-metric lock screws)For use with the optional MU-24/DMRS-422 (for Sony 9-pin)9-pin female D-sub connector (

19、non-metric lock screws)wired to RS-422 standardsGPI (for Machine start)9-pin female D-sub connector (non-metric lock screws)wired for GPI controlPin 1=GPI1, Pin 2=GPI2, Pin 3=GPI3, Pin 4=GPI4, Pin5=GPI5, Pin 6=GPI6,Pin 7=GPI7, Pin 8=GPI8, Pin 9=groundEQ switchOn/OffHIGH filterGain: 18dB, 0.5dB resol

20、utionFrequency: 31Hz to 19kHzQ: 0.27 to 8.65Type: Hi-shelving, Peak, LPFHI MID filter Gain: 18dB, 0.5dB resolutionFrequency: 31Hz to 19kHzQ: 0.27 to 8.65Type: Peak, NotchLO MID filterGain: 18dB, 0.5dB resolutionFrequency: 31Hz to 19kHzQ: 0.27 to 8.65Type: Peak, NotchLOW filterGain: 18dB, 0.5dB resol

21、utionFrequency: 31Hz to 19kHzQ: 0.27 to 8.65Type Low-shelving, Peak, HPF5TASCAM DM-24特性歪率(THD):0.1%以下（20 Hz 20 kHz 、LINE IN 4 dBu 入力 INSERT SEND）0.013%以下（1 kHz 、LINE IN 4 dBu 入力 STEREO OUTPUT）周波数特性:20Hz 25kHz、 0.5dB/ 1.5dB（MIC/LINE IN INSERT SEND）20Hz 20kHz、 0.5dB/ 1.0dB（LINE IN STEREO OUTPUT）20Hz 2

22、0kHz、 0.5dB/ 1.0dB（LINE IN BUSS/AUX OUTPUT）20Hz 25kHz、 0.5dB/ 1.5dB（2TR IN MONITOR OUTPUTS） （150、 20Hz 20kHz、 TRIM:最大、 60dB） : 128dBu以下MIC IN INSERT SEND 68dBu以下MIC IN STEREO OUTPUT (BAL) 74dBu以下MIC IN STEREO OUTPUT (UNBAL) 74dBu以下MIC IN BUSS/AUX OUTPUT 80dBu 以下2TR IN MONITOR OUTPUT機械的仕様 : 式 320 240

23、 LCD（可能）12 LED （2） : 100mm 、外形寸法 : 582(W) 657(D)198(H)mm質量 : 20.5 kg電源 : 100 V 、50/60 Hz AC消費電力 : 82 W 仕様外観、改善予告変更。THD (nominal level)20Hz 20kHz LINE IN to INSERT SEND: 0.1%1kHz LINE IN to STEREO OUTPUT: 0.013%Frequency response (nominal level)MIC/LINE IN to INSERT SEND:20Hz 25kHz +0.5dB/ 1.5dBLINE

24、IN to STEREO OUTPUT:20Hz 20kHz +0.5dB/ 1.0dBLINE IN to BUSS/AUX OUTPUT20Hz 20kHz +0.5dB/ 1.0dB2TR IN to MONITOR OUTPUTS20Hz 25kHz +0.5dB/ 1.5dBNoise level (20Hz 20kHz, TRIM:max, 150, 60dB)MIC IN to INSERT SEND: 128dBuMIC IN to STEREO OUTPUT (BAL): 68dBuMIC IN to STEREO OUTPUT (UNBAL): 74dBuMIC IN to

25、 BUSS/AUX OUTPUT: 74dBu2TR IN to MONITOR OUTPUT: 80dBMONITOR OUTPUTS: 70dBDisplaysBacklit 320 x 240 LCD with contrast control2 x 12-segment LED metersFaders17 x 100mm stroke, motor-driven touch-sensitive fadersMaximum overall dimensions (w x d x h) including rest582 x 657 x 198 (mm) 22.9 x 25.9 x 7.

26、8 (in)Weight20.5kg (45.1lbs)Voltage requirements120VAC, 60Hz230VAC, 50Hz240VAC, 50HzPower consumption82WPeak inrush current8AApplicable electromagnetic environmentE4 Specifications and appearance subject to changewithout notice.6TASCAM DM-24Dimensional Drawings 寸法図TASCAM93 mm(3.7 in)582 mm (22.9 in)

27、574 mm (22.6 in)657 mm (25.9 in)198 mm (7.8 in)7TASCAM DM-242. SELF DIAGNOSTIC FUNCTION自己診断機能2ND F. EQUALIZER HIGH LIBRARY -押（TASCAM文字押）電源投入、次DIAG画面表示。 JOG/DATA 各項目合、ENTER 押、移。、DIAG 起動時、SRAM 用電池電圧行、値（2.5V 未満 3.9V 以上） Pop-up 警告。Power to the unit while holding down 2ND F. + EQUALIZERHIGH + LIBRARY - (

28、until TASCAM appears scrolling).Then the DIAG menu screen will appear, as the illustrationbelow shows.You can move the cursor through the test items by using the cur-sor keys or JOG/DATA dial. When you press the ENTER key,the unit switches into the selected test mode.In addition, upon launch of DIAG

29、, the DM-24 checks the volt-age of the battery for SRAM and displays a pop-up warningmessage if the voltage lies in the range of error (below 2.5 V ormore than 3.9 V).In case the voltage is below 2.5 V :2.5V 未満：In case the voltage is more than 3.9 V :V:2.5V 未満：8TASCAM DM-24 LED TEST各LED点灯行。1. LED TE

30、ST 入次 Pop-up 表示、LED全点灯。（MU-24）接続、同時点灯。2. 押DIAG画面戻。全 LED 正常 LED TEST 項目付。 ALL LED TEST 中、SHIFT ENTER 押、次Pop-up 表示、各LED順番点灯。押 DIAG 画面戻。（、行。 ） LED TESTThis test checks if each of the LEDs illuminates.1. When the DM-24 switches into the LED TEST mode, a pop-up message, as shown below, appears and all th

31、e LEDsshould illuminate. They illuminate at the same time if the meter bridge (MU-24) is connected.2. Press a cursor key to return to the DIAG menu screen. If allthe LEDs are in order, the LED TEST item is check marked. You can press SHIFT + ENTER during ALL LED TEST.Then the next pop-up message wil

32、l appear and the LEDs willilluminate one at a time in sequence. Pressing a cursor keybrings you back to the DIAG menu screen.(This test does not run on the meter bridge.)9TASCAM DM-24 SW TEST各ON/OFF行。、LAYER STATUS 自動的 CH1-16 。1. SW TEST入、次画面表示。2. 画面上点滅順押、押表示消。、押連動LED 、ON点灯、OFF消灯。3. SW 終了、DIAG 画面戻、SW

33、 TEST項目付。 途中強制終了場合、同時押。 本体中 SHIFT + ENTER 押、（MU-24）SW入。ENTER押、DIAG画面戻。方法本体同様。 SW TESTThis test checks if each of the switches toggles on/off properly.When you run this test, the DM-24 is automatically set to CH-16for LAYER STATUS.1. When the DM-24 switches into the SW TEST mode, the fol-lowing scree

34、n will appear.2. Press the switches in sequence, the on-screen images ofwhich are blinking. Each time you press a switch, the corre-sponding on-screen image goes out.Pressing a switch associated with an LED causes the LED toilluminate to indicate the switch is activated. The LED turnsoff when the sw

35、itch is deactivated. 3. Upon completion of the check of all the switches, the DIAGmenu screen reappears with the SW TEST item checkmarked. To abort the switch test, press the left () and right ()cursor keys at the same time. When the switch test is being conducted on the DM-24 andyou press SHIFT + E

36、NTER, the switch test shifts to themeter bridge (MU-24). Pressing ENTER brings you back tothe DIAG menu screen.The switches on the meter bridge are tested in the same waythe switches on the DM-24 are.10TASCAM DM-24 FADER/SOLO VR READ TEST各読取値正常化。、LAYER STATUS 自動的 CH1-16 。1. FADER/SOLO VR READ TEST 入

37、、次画面表示。2. 動下矢印表示、動。、動周枠表示、画面上部読取値CH 表示。3. 正常、最大値最小値読次移動。、済絵消。4. 終了、SOLO 下矢印表示。5. SOLO 最大、最小回、DIAG 画面戻、FADER/SOLO VR READ TEST 項目付。 最大値最小値、一番上一番下以外位置読取場合、FADER SOLO VR 異常考。場合、正常付注意必要。 途中強制終了場合、ENTER押。 FADER/SOLO VR READ TESTThis test checks if the reading provided by each fader is correct.The DM-24 i

38、s automatically set to CH-16 for LAYER STA-TUS. 1. When the DM-24 swiches into the FADER/SOLO VRREAD TEST mode, the screen should look like this.2. An arrow mark is displayed below the image of a fader to bemoved. Push up and bring down that fader. A frame shouldbe displayed around the fader and the

39、 reading and CH num-ber are displayed in the upper part of the screen.3. If the fader works properly providing the prescribed maxi-mum and minimum values, go on to the next fader. Theimage of the previous fader, which has been checked, goesout.4. When all the faders have been checked, an arrow mark

40、is dis-played below the SOLO knob image.5. Turn the SOLO knob all the way up then all the way down,then the DIAG menu screen reappears with theFADER/SOLO VR READ TEST item check marked. If a fader offers the maximum/minimum value when it is notin the uppermost/lowermost position, something goes wron

41、gwith FADER/SOLO VR. Remember that this irregularitydoes not result in a test failure and a check mark is put to theFADER/SOLO VR READ TEST item on the menu. To abort the fader read test, press ENTER.11TASCAM DM-24 FADER TOUCH TESTFADER 機能行。触認識、複数同時触時正認識。1. FADER TOUCH TEST 入、以下画面表示。2. 触下矢印表示、触。、画面上

42、部触触表示。、触黒塗表示。3. 触正認識、次移動。、済絵消。4. 終了、DIAG 画面戻、FADER TOUCH TEST 項目付。 正認識場合、OPTION 画面 SET UP 画面、FADER SENSITIVITY CLOCK 周波数設定変。、FADER SENSITIVITY ON、ON/STATUS LED可能。 途中強制終了場合、ENTER押。 FADER TOUCH TESTThis test checks the faders for touch sensitivity. This test alsochecks if, when a single fader is touch

43、ed, only that fader sensesit or if, when two or more faders are touched, they all sense it.1. When the DM-24 switches into the FADER TOUCH TESTmode, the following screen will appear.2. Touch the fader, below the on-screen image of which anarrow mark is displayed. The number assigned to a fader to be

44、 touched is shown in theupper part of the screen, along with the number assigned tothe actually touched fader.The on-screen image of the fader knob you touch goes black.3. If the fader you touched is recognized by the DM-24, go onto the next fader. The on-screen image of the fader havingbeen checked

45、 goes out.4. When all the faders have been successfully checked, theDIAG menu screen reappears with the FADER TOUCHTEST item check marked. If faders are not recognized correctly, try changing theCLOCK setting for FADER SESITIVITY on the SET UPsub-screen under the OPTION screen.Also, you can set the

46、FADER SENSITIVITY setting to ONso that the ON/STATUS LED is available to check the fadersensitivy. To abort the fader sensisvity test, press ENTER.12TASCAM DM-24 FADER MOTOR TEST複数正常動作。1. FADER MOTOR TEST 入、次 Pop-up 表示、Multiple Fader Motor TEST 開始。、全 MIN 値 MAX 値 MIN値 15dB（STEREO25dB）移動。2. 移動終、次 Pop-

47、up 表示。3. 押 Pop-up 消、DIAG 画面戻、FADER MOTOR TEST 項目付。 Multiple Fader TEST SHIFT ENTER押、次 Pop-up 表示、SingleFader Motor TEST 開始。、 CH1 順番、1 1 MIN 値 MAX 値MIN 値移動。途中強制終了場合、押。 FADER MOTOR TESTThis test checks if the fader motors work properly either one byone or all at a time.1. When the DM-24 switches into t

48、he FADER MOTOR TESTmode, the following pop-up message will appear and theMultiple Fader Moter TEST will start.All the faders move from MIN value MAX value MINvalue 15 dB (or 25 dB with the STEREO fader).2. When all the faders have moved through the positions indi-cated above, the next pop-up message

49、 would appear.3. When you press a cursor key, the pop-up message goes outand the DIAG menu screen reappears with the FADERMOTOR TEST item check marked. Pressing SHIFT + ENTER at the Multiple Fader MotorTEST time, the next pop-up message appears and the SingleFader Motor TEST starts. The faders move

50、from MIN value MAX value MINvalue in 1 frame steps sequentially, starting with the fader onCH 1. To abort the process, press a cursor key.13TASCAM DM-24 POD & DIAL TEST各 POD 回左右方向認識正。1. POD & DIAL TEST 入、以下画面表示。2. 回 POD 枠表示、回。 （最初JOG/DATA表示）3. 最小値（左回）回最大値（右回）回、次POD移動。4. POD 終了、DIAG 画面戻、POD & DIAL TE