Tascam 202MKV Service Manual 电路图.pdf

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1、2 20 02 2 Double Auto Reverse Cassette Deck Effective : February, 2009 S-0185 CONTENTS 1. Specifications 2 2. Adjustment and Checks 4 3. Mounting the Reel Sensor 9 4. Exploded Views and Parts List 10 5. PC Boards and Parts List 15 6. Included Accessories 23 目次 1. 仕様 2 2. 調整確認 4 3. 組付方法 9 4. 分解図 10 5

2、. 基板図 15 6. 付属品 23 INSTRUCTIONS FOR SERVICE PERSONNEL BEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-CUR- RENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT. RadioFans.CN 收音机爱好者资料库 2 1. Specifications 仕様 TASCAM 202MKV Rating 1

3、Erase and 1 Record/Playback(Rotating) Deck 2; 1 Erase and 1 Record/Playback(Rotating) Type of Tape:Cassette tape C-60 and C-90 (Philips type) Tape Speeds:4.76 cm/sec (1-7/8 ips) 9.5 cm/sec (3-3/4 ips) (High speed dubbing) Pitch Control:12% Motors:2 DC servo motors (1 ea. deck) Wow and Flutter:0.25 %

4、 (WRMS) Frequency response (Overall, -20 dB): 3019,000 Hz, Metal tape(Playback only) 3018,000 Hz, CrO2 tape 3017,000 Hz, Normal tape Signal-to-Noise Ratio (Overall): 59 dB (NR off, 3 % THD Level, Weighted) 69 dB (Dolby B NR on, over 5 kHz) Fast Winding Time:Approximately 160 seconds for C-60 Inputs

5、Line:-9 dB, 50 k Mic:-57 dB, 200 Outputs: Line:-4.5 dB for load impedance of 50 k or more Headphones: 1 mW / 32 Physical specifications Power Requirements: General Export model 120 / 230 V AC, 50-60 Hz U.S.A./Canada model 120 V AC, 60 Hz Europe model230 V AC, 50 Hz () Australia model240 V AC, 50 Hz

6、() Power Consumption: 22 W Dimensions (W x H x D): 482 x 138.5 x 286 mm (17-1/8 x 4-15/16 x 11-1/2) Weight (net):5.5 kg (12.1 lbs.) Standard Accessories: Rack mounting kit x 1 0 dB=0.775V 定格性能形式:42 構成: Deck 1：録音/再生1 消去1 Deck 2：録音/再生1 消去1 使用:C-60, C-90 速度:4.8cm/sec, 9.5cm/sec（倍速時） :12% : Deck 1：DC1

7、Deck 2：DC1 :0.25% (W.RMS) 0.1% (W.Peak)* 周波数特性(総合) ：3019,000Hz (再生) ：3018,000Hz ：3017,000Hz SN比(総合)58dB（NR OFF, 規定録音） 69dB（B NR ON, CCIR-ARM）早巻時間約160秒（C-60）入力：9dB（入力50k）：57dB（入力200）出力：4.5dB （負荷50k以上）：1mW / 32 一般電源100V AC, 5060Hz 消費電力16W 外形寸法482138.5286mm (WHD) 質量5.5kg 付属品 1, 0 dB=0.775V Radi

8、oFans.CN 收音机爱好者资料库 3 TASCAM 202MKV Dimensional drawings(外形寸法） RadioFans.CN 收音机爱好者资料库 1. 機構部調整 1-1 (再生法) FWD, REV両方向巻始、中間、巻終測定。 1. LINE OUT端子接続。 2. MTT-111N再生。 3. 値0.25% (JIS WTD) 以下確認。 1-2 1. LINE OUT端子周波数接続。 2. MTT-111N巻始部FWD方向再生。 3. 周波数値下表範囲内、各調整VR調整。 4. 巻始巻終再生、変動幅確認。変動幅：120Hz以内（） 60Hz以内（） 1-

9、3 1. 型測定値下記範囲内確認。：3075g-cm ： 1.56g-cm 早送/巻戻：55170g-cm MTT-8111W：巻取（FWD用） MTT-8121W：巻取（REV用） MTT-8242：早送巻戻 1. MECHANICAL ADJUSTMENT 1-1 Wow and flutter (playback method) In both FWD and REV play modes, these measurements should be made at the beginning, middle, and the end of the tape. 1. Connect

10、 a wow-and-flutter meter to the LINE OUT. 2. Load and play a TEAC MTT-111N test tape. 3. Check that the readings on the wow-and-flutter meter is within 0.25% (JIS WTD). 1-2 Tape speed 1. Connect a frequency counter to the LINE OUT. 2. Load a TEAC MTT-111N test tape and play in FWD direc- tion the be

11、ginning of the test tape. 3. Adjust each variable resistor to get the following values. 4. In play mode, check that the following values are obtained at the beginning and end of the tape. Speed driftingWithin 120Hz (HIGH speed) Within 60Hz (LOW speed) 1-3 Reel torque 1. Load the cassette torque mete

12、r on the deck and read the pointer indication on the dial scale for each tape transport operation. The measured torque should be within the following specified values. Take-up: 30 to 75g-cm Supply: 1.5 to 6g-cm FF/REW: 55 to 170g-cm Torque meter MTT-8111W: Forward torque R11/R21) 0dB is referenced t

13、o 0.775V. The AC voltmeter used in the procedures must have an input impedance of 1M or more. Unless specified otherwise, adjustments and checks are made in FWD direction. 2-2 Adjustment locations 2. 部調整 2-1 注意部調整確認前、走行系消磁清掃行。特指定限、調整Lch, Rch順序行。尚、R11/R21記回路番号 Lch/Rch示。 0dB0.775V。測定使用計入力1M以上使用。

14、特指定場合、調整確認FWD方向行。 2-2 調整個所 Fig. 2-2 6 TASCAM 202MKV 2-3 Playback performance 再生系 Deck settings:TEAC test tapes: Mode: PLAYMTT-150:For Dolby level calibration DOLBY NR Switch:OFFMTT-25702:For playback frequency response check NORMAL tape MTT-5513: For S/N check NORMAL tape ITEM 項目 SETTING 設定 INPU

15、T SIGNAL 入力信号 ADJUSTMENTS 調整個所 MEASURING POINTS, RESULT 測定個所調整値 REMARKS 備考 1. Head azimuth adjustment 調整 Connection:Fig. 2-4 Check and adjust in FWD, REV respec- tively FWD、REV 調整確認 MTT-150CCheck LINE OUT: Phase: within 45 位相: 45 以内 (Fig. 2-5) 2. DOLBY level Connection:Fig. 2-2 FWD PLAY MTT-150C R1

16、1/R21 W12/W15: 300mV REC/PLAY1 1 3. Playback output level 再生出力 Connection:Fig. 2-3 FWD/REV PLAY MTT-150CCheck LINE OUT: 4.51dB Ref. output level 基準出力 4. Meter level MTT-150CCheck LEVEL METER: mark1dot 5. PHONES output level PHONES 出力 MTT-150CCheck PHONES: 133dB 32load 32負荷 6. Playback frequency resp

17、onse 再生周波数特性 Connection:Fig. 2-3MTT-25702Check 7. Playback S/N ratio 再生S/N比 Connection:Fig. 2-3 MTT-5513 Playback the leader tape portion 部再生 Check46dB min. Ratio of ref. level to noise 基準出力比 MTT-25702 (12.5kHz) Azimuth screws 調整 LINE OUT: Maximum output level at L & R-ch Lch、Rch出力最大 R12/R22REC/

18、PLAY2 2 7 TASCAM 202MKV 2-4 Recording performance 録音系 Deck settings:TEAC recording test tapes: Mode:REC/PLAYMTT-5513:For NORMAL DOLBY NR Switch: OFFMTT-5563: For CrO2 REC LEVEL Control: Specified position (Item 8)MTT-5572:For META ITEM 項目 SETTING 設定 INPUT SIGNAL 入力信号 ADJUSTMENTS 調整個所 MEASURING POI

19、NTS, RESULT 測定個所調整値 REMARKS 備考 8. Specified LINE input level 規定入力 Connection:Fig. 2-3 Mode: REC LINE IN: 400Hz/9dB REC LEVEL LINE OUT: 4.5dB After adjusting, do not move (Specific position) 調整後動（規定位置） 9. Bias osc frequency 発振周波数 Connection:Fig. 2-2 TAPE: MTT-5513 Mode: REC LINE IN: No signal 無信号

20、 L301 P303 Pin 2: 100kHz REC/PLAY2 2 10. Step up coil Connection:Fig. 2-2 TAPE: MTT-5572 Mode: REC LINE IN: No signal 無信号 L103/L203 TP3/TP4: Min. DC voltage DC電圧最小 REC/PLAY2 2 11. Record bias 録音 Connection:Fig. 2-3 TAPE: MTT-5513 LINE IN: 250Hz/10kHz 42dB R14/R24 LINE OUT: Nearly equal level at both

21、 frequencies 両周波数録再出力同(0.5dB) REC/PLAY2 2 12. MPX filter MPX Connection:Fig. 2-3 Mode: REC LINE IN: 19kHz/12dB L101/L20130dB min. Ratio of ref. level to signal 基準出力対比 13. Record level 録音 Connection:Fig. 2-3 TAPE: MTT-5513 LINE IN: 400Hz/12dB R13/R23 LINE OUT: 7.5dB REC/PLAY2 2 14. Total har- monic

22、 distortion 総合歪率 Connection:Fig. 2-3 TAPE: MTT-5513 MTT-5563 LINE IN: 400Hz/12dB Check NORMAL: 2.0% or less CrO2 : 2.5% or less TAPE: MTT-5563Check LINE OUT: 7.51dB 15. Overall frequency response 録再周波数特性 Connection:Fig. 2-3 TAPE: MTT-5513 MTT-5563 LINE IN: 40Hz12.5kHz 42dB Check 16. Overall S/N rat

23、io 総合S/N比 Connection:Fig. 2-3 TAPE: MTT-5513 MTT-5563 LINE IN: No signal 無信号 Check NORMAL : 45dB min. CrO2 : 46dB min. Ratio of ref. level to noise 基準出力比 L401 L503/L603 R52/R62 P310 Pin 1: 100kHz REC/PLAY1 1 W39/W40: Min. DC voltage DC電圧最小 REC/PLAY1 1 REC/PLAY1 1 R51/R61REC/PLAY1 1 8 TASCAM 202MKV

24、ITEM 項目 SETTING 設定 INPUT SIGNAL 入力信号 ADJUSTMENTS 調整個所 MEASURING RESULT 調整値 REMARKS 備考 17. Erase effi- ciency 消去率 Connection:Fig. 2-3 TAPE: MTT-5563 1kHz B.P.F in LINE IN: 1kHz/1dB Check65dB min. Ratio of the 1kHz record- ed portion to the erased portion. 未消去部分消去部分比 18. REC MUTE function REC MUTE

25、効果 Connection:Fig. 2-3 TAPE: MTT-5563 1kHz B.P.F in LINE IN: 1kHz/1dB Check55dB min. Ratio of the 1kHz record- ed portion to the REC MUTE portion. 録音部分 REC MUTE 部分比 19. Channel separation Connection:Fig. 2-3 TAPE: MTT-5563 1kHz B.P.F in LINE IN: Lch 1kHz/ 9dB Rch No signal 無信号 Check35dB min. Ratio

26、of Lch (1kHz) to Rch (no signal). Lch (1kHz)Rch (無信号) 比 20. Adjacent track crosstalk 間 Connection:Fig. 2-3 TAPE: MTT-5563 LINE IN: Lch No signal 無信号 Rch 125Hz/ 9dB Check40dB min. Invert tape and play Rch track. Check leakage level against the output refer- ence of previously recorded portion. 反転再生

27、時Rch出力比（同位相）（逆位相） Fig. 2-4Fig. 2-5 Fig. 2-3 9 3. Mounting the Reel Sensor 組付方法 TASCAM 202MKV 1. In advance, attach a SHEET, SENSOR 222SLMK2 G to a SHEET, REFLEX 222SLMK2 G. 2. Move the winged gear on the center in the direction of the arrow and fit the combination of sheets into the gear shaft be

28、low the winged gear position. 3. Mount the SENSOR PCB Assy. 1. 予SHEET,SENSOR 222SLMK2 GSHEET,REFLEX 222SLMK2 G貼付。 2. 中央羽付歯車矢印方向避、下歯車軸挿入。 3. SENSOR PCB Assy取付。 Let this part escape in the direction of the arrow. 部品矢印方向避。 Attach in the position indicated by the arrow. 矢印位置取付。 Fix on the position indi

29、cated by the arrow using SCREW, BPP 2*8 FZC G. 矢印位置SCREW, BPP 2*8 FZC G固定。 4. Exploded Views and Parts List Exploded View-1 10 分解図 TASCAM 202MKV R O P I T T R Y U : S X X X X X X C Z : : ? M M X ? X X S C B B B N V V V A A Exploded View-1 REF.NO.PARTS NO.DESCRIPTIONREMARKS 1- 13M0016100BBONNET G 1-

30、2M02753900BMECH ASSY,RP CRP42606 G 1- 33M0029810AHOOK,EJECT A W-780R G 1- 4M02520800ATRSN SPR,EJECT 202MK4 G 1- 5AM02719600BBRACKET,EJECT A G 1- 5BM02719700ABRACKET,EJECT B G 1- 63M0053700AKNOB,SLIDE(B) G 1- 7PCBA,SLIDE SW 202MK5 G .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1- 83M0011200ADAMPER

31、,(SD-385) 1- 93M0026600HRACK MOUNTING 102MK2 G 1-10PCB ASSY,KEY 202MK5 G .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-11PCB ASSY,CONTROL 202MK5 G .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-123M0054000BPLATE,SHIELD G 1-13M02465800AKNOB,EJECT L 202MK4 G 1-143M0010400ATORSION SPRING,CASE I

32、G 1-15M02487300ABUTTON,PLAY 202MK4 G 1-16PCBA,MIC 202MK5 G Except E .GATHER PCBA,B 202MK5 G (Refer to page 17) PCBA,MIC EUR 202MK5 G E .GATHER PCBA,B 202MK5 G (Refer to page 17) 1-173M0056100ABRACKET,BASE G 1-183M0056000ABRACKET,TOP G 1-19PCBA,VR 202MK5 G.GATHER PCBA,C 202MK5 G (Refer to page 18 & 1

33、9) 1-20PCBA,PHONE 202MK5 G.GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-21M02465900AKNOB,EJECT R 202MK4 G 1-223M0010500BTORSION SPRING,CASE II G 1-233M0026500BWINDOW,LID AD500 G 1-243M0030000EHOOK,EJECT B W-780R G 1-25M02888800AFRONT PANEL,202MK5 G 1-263M0134900ABADGE TASCAM SILVER G 1-273M00111

34、00ACASE,LEAD W-780R G 1-28M01509810ABUTTON,POWER BLK G 1-293M0052600ABUTTON,CLEAR(B) G 1-30M02888900AWINDOW,FL 202MK5 G 1-31M02551900BPLATE,REFLECT S-LINE G 1-32AM02473500ADOOR,LID1 202MK4 G 1-32BM02473600ADOOR,LID2 202MK4 G 1-333M0052500BBUTTON,WINDOW(B) G 1-34M02487400AKNOB,REC 202MK4 G 1-353M0052

35、900AKNOB,M(B) G 1-373M000880BUSHING, #2271(CSA)-G 1-383E000350POWER CORD,UK G UK 1-383E000360POWER CORD,AUS G A 1-383E009230POWER CORD,UL/CSA SPEI-G ETC 1-383E015210POWER CORD,EUR-G E 1-38E0140630POWER CORD,KOREA WS-006 K 1-38E0140770POWER CORD,JPN PSE 7A G J 1-38E0148200POWER CORD,CQ-5818-00 G CH 1

36、-38E0156970POWER CORD,TM 7A BSMI G T 1-39M02465500BPANEL,REAR 202MK4 G Except ETC 1-39M02465593BPANEL,REAR EXTC 202MK4 G ETC 1-40M02953800AAC SELECT ASSY,202MK5 G ETC 3E040130SW,SL14-22AH-0AN G ETC E01557100AHARNESS ASSY,WHT (0V) G ETC E01557200AHARNESS ASSY,BRW (120V) G ETC E01557300AHARNESS ASSY,O

37、RG (230V) G ETC TASCAM 202MKV 11 Exploded View-1 REF.NO.PARTS NO.DESCRIPTIONREMARKS 1-41PCBA,REC AMP 202MK5 G .GATHER PCBA,B 202MK5 G (Refer to page 17) 1-42PCBA,TR 202MK5 G.GATHER PCBA,A 202MK5 G (Refer to page 15 & 16) 1-43PCBA,MAIN 202MK5 G.GATHER PCBA,A 202MK5 G (Refer to page 15 & 16) 1-443M001

38、6400CBRACKET, LINKAGE G 1-45PCBA,TRANS A JPN 202MK5 G J .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-45PCBA,TRANS A EUR 202MK5 G K,A,E,CH,UK .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-45PCBA,TRANS A EXTC 202MK5G ETC,TM .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-46PCBA,TRANS B 202M

39、K5 G J .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-46PCBA,TRANS B EUR 202MK5 G K,A,E,CH,UK .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-46PCBA,TRANS B EXTC 202MK5G ETC,TM .GATHER PCBA,C 202MK5 G (Refer to page 18 & 19) 1-473E0399900ATRANS,POWER W-860R ALL G 1-48M02482500ALINK,POWER 202MK4

40、 G 1-493M0010830FMAIN CHASSIS, W-790R G 1-503M0062000BINSULATE SHEET W-790R G 1-513M003070SUPPORT,PCB SCB-8-G 1-523M001950FOOT,21MM G 1-533M0118800BRING,POWER CC-222 G 1-54M02719800ALEAF,SPRING G 1-55M02719300ALEVER,CTRL 1-56M02719500CLEVER,STPR R G 1-57M02719400ALEVER,STPR L G 1-58PCB ASSY,SENSOR 2

41、22SL2 G.GATHER PCBA,SER 222SL2 G (Refer to page 21) 1-59M02757500CSHEET,SENSOR 222SLMK2 G 1-60M02876800ASHEET,REFLEX 222SLMK2 G 1-61M02888700ABRACKET,LEAD 202MK5 G 1-62E01523500AFLAT CABLE,11P P=1.25 G 1-70B00197612ASCREW,PPSU 3*12 FZB G 1-71B00170608ASCREW,VPCR 3*8 FZB G 1-72B00199008ASCREW,BPP 3*8

42、 FZC G 1-73B00198204ASCREW,BPS 2.6*4 FZC G 1-74B00198306ASCREW,BPS 3*6 FZC G 1-75B00198606ASCREW,BPS 3*6 FZB G 1-76B00199708ASCREW,BPB 3*8 FZB G 1-77B00256308ASCREW,PPPT 3*8FZB G 1-78B00198706ASCREW,BPS 4*6 FZB G 1-79B00197806ASCREW,PPSU 3*6 FZC G 1-80B00247300ASCREW,PPSP 4*1.3FZC G 1-81B00199808ASC

43、REW,BPB 4*8 FZB G 1-823M002020FIBER WSHR,3X8X0.3T BLK 1-83B00247000ASCREW,DPS 3*6.9FZB G 1-84B00198808ASCREW,BPP 2*8 FZC G 1-85B00199406ASCREW,BPB 3*6 FZC G 3E002720FER.CORE K5AT18.3X10X10 G E0132620FER,CORE CTNF-65B G 3E002730FER.CORE K5AT 13X7X5 G TASCAM 202MKV 12 Exploded View-2 13 TASCAM 202MKV

44、The parts with no referrence number in the exploded views are not supplied. 分解図部番部品供給。 A A 1 q 1 2 6 4 8 5 7 0 3 Exploded View-2 REF.NO.PARTS NO.DESCRIPTIONREMARKS 2- 1V00178500A ROOLER, PINCH CC-222SLMK2.50-027-4685 2- 2V00178600A GEAR, REEL B CC-222SLMK2 .50-222-31333 2- 3V00178700A GEAR, IDLER CC

45、-222SLMK2.50-222-41226 2- 4V00178900A MOTOR ASSY CC-222SLMK2.50-093-41644 2- 5V00179000A WIRE, MOTOR 4 CC-222SLMK2.50-072-4516 2- 6V00179100A BELT, SR CC-222SLMK2.02-083-4283 2- 7V00179200A BELT, FR CC-222SLMK2 .02-083-4293 2- 8V00178800ACLUTCH ASSY, REEL .50-093-41399 2-10V00179300A PCB ASSY,S CC-222SLMK2 .50-093-4166