Technics-SHMZ1200-mix-sm 电路图 维修手册.pdf

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1、file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0000000000.html Service Manual TOP NEXT ORDER NO. AD0407060C0 A2 DJ Mixer G SH-MZ1200PP SH-MZ1200EB SH-MZ1200EG SH-MZ1200EP SH-MZ1200GN Colour K.Black Type S.Silver Type Specification Input sensitivity/Input impe

2、dance PHONO (TRIM center) 2.5mV/47k LINE (TRIM center) 250mV/10k EFFECT RETURN 250mV/47k MIC 0.7mV/1k Rated output voltage/Output impedance MASTER 1, 2 (RCA) 1V/600 MASTER 1 (XLR) 1V/600 MONITOR 1V/1k REC OUT 250mV/1k EFFECT SEND 250mV/1k Headphone output 30mW/32 Frequency response MASTER 1, 2 20Hz

3、to 20,000Hz REC OUT 20Hz to 20,000Hz EFFECT RETURN 20Hz to 20,000Hz MIC 20Hz to 20,000Hz file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0000000000.html (1 of 2)08-09-30 17:49:12 RadioFans.CN 收音机爱 好者资料库 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/tec

4、hnics SH-MZ1200EB_EG_EK_PP_GN/s0000000000.html Digital audio input Coaxial digital input Compatible sampling rate 48kHz/44.1kHz/32kHz (PCM) Digital audio output Coaxial digital output Sampling rate 44.1kHz (PCM) Equalizer characteristics CD/LINE/PHONO LOW +12dB, -24dB (50Hz) MID +12dB, -24dB (1kHz)

5、HIGH +12dB, -24dB (10kHz) MIC LOW +12dB, -24dB (100Hz) HIGH +12dB, -24dB (10kHz) General Power supply AC120V, 60Hz (PP area) AC230-240V, 50Hz (EB,EG,EP,GN areas) Power consumption 35W Dimensions (WHD) 300mm 103mm 330mm (11-26/32” 4-1/16” 13”) Mass 5.3kg (11.7lb.) Note: Specificationsare subject to c

6、hange without notice. Mass and dimensions are approximate. 2004 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. TOP NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0000000000.html

7、(2 of 2)08-09-30 17:49:12 RadioFans.CN 收音机爱 好者资料库 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0100000000 x.html 1 Safety Precaution TOP PREVIOUS NEXT (This “Safety Precaution” is applied only in U.S.A.) 1. Before servicing, unplug the power cord to prevent

8、 an electric shock. 2. When replacing parts, use only manufacturers recommended components for safety. 3. Check the condition of the power cord. Replace if wear or damage is evident. 4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc. 5. Befor

9、e returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the customer from being exposed to a shock hazard. Insulation Resistance Test 1. Unplug the power cord and short the two prongs of the plug with a jumper wire. 2. Turn on the power

10、 switch. 3. Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as screw heads, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M and 5.2M to allexposedparts. (Fig. A) Equipment without antenna te

11、rminals should read approximately infinity to all exposed parts. (Fig. B) *Note: Some exposed partsmay beisolatedfrom the chassis by design. These will read infinity. (Fig. A) file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0100000000 x.html (1 of 3)08-09-30 1

12、7:49:37 RadioFans.CN 收音机爱 好者资料库 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0100000000 x.html (Fig. B) file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0100000000 x.html (2 of 3)08-09-30 17:49:37 file:/C|/Documents an

13、d Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0100000000 x.html 4. If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repaired and rechecked before it is returned to the customer. TOP PREVIOUS NEXT file:/C|/Docum

14、ents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0100000000 x.html (3 of 3)08-09-30 17:49:37 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0200000000 x.html 2 Caution for AC Mains Lead TOP PREVIOUS NEXT file:/C|/Documents and Setting

15、s/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0200000000 x.html (1 of 2)08-09-30 17:49:40 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0200000000 x.html TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB

16、_EG_EK_PP_GN/s0200000000 x.html (2 of 2)08-09-30 17:49:40 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0300000000 x.html 3 Accessories TOP PREVIOUS NEXT G AC power supply cord.1pc. H For U.S.A. and Canada. (K2CB2CB00006) G For the United Kingdom. (RJA0053-3

17、X) G For Australia and New Zealand. (K2CJ2DA00008) file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0300000000 x.html (1 of 2)08-09-30 17:49:53 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0300000000 x.html G For other

18、s (RJA0019-2X) Note: The included AC power supply cord is for use with this unit only. Do not use it with other equipment. TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0300000000 x.html (2 of 2)08-09-30 17:49:53 file:/C|/Documents and Sett

19、ings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0400000000o.html 4 Component Part Name TOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0400000000o.html08-09-30 17:49:56 Input switch for adjusting left and right

20、input individually (L/R SPLIT) Input switch (CH1-CH4) CD/LINE DIGITAL: Line or CD input, Digital input LINE: Line input PHONO 1-3: Turntable phono input Input control knob (CH1-CH4) Input level control knob (TRIM) High-tone input control knob (HIGH) Mid-tone input control knob (MID) Low-tone input c

21、ontrol knob (LOW) Channel effect (CH1-CH4) switch (EFFECT) Power indicator lamp (POWER) Output level meter (OUTPUT LEVEL) Play mode lamp (PLAY MODE) Master output control knob (MASTER) Master level volume control knob (MASTER LEVEL) Master balance control knob (MASTER BALANCE) Output separation ON,

22、OFF switch (SEPARATE OUT) Monitor control knob (MONITOR) Monitor level volume control knob (LEVEL) Monitor mixing control knob (MIXING) Monitor mode switch (MODE) Monitor select button-display lamp (CUE) CH1-CH4: CH1-CH4 monitor selector EFFECT: Effector monitor selector Channel fader (CH1 - CH4) Cr

23、oss fader (CROSS FADER) Cross fader Assign A, B switch (C. FADER ASSIGN) Effector output switch (PRE/POST) Input-output effect control knob (EFFECT) Output effect control knob (SEND) Input effect control knob (RETURN) Microphone input control knob (MIC) Microphone level volume control knob (MIC LEVE

24、L) High-tone microphone control knob (HIGH) Low-tone microphone control knob (LOW) Control panel Cross fader curve control switch (C.FADER CURVE) Curve switch (CURVE) Cross fader operation switch (CROSS FADER) Fader operation switch (CH1-CH4 FADER) Headphone terminal (PHONES) Fader start (ON, OFF) s

25、witch (FADER START) Front panelRear panel Power button (POWER OFF ON) Turntable earth terminal (PHONO EARTH) Input terminal (CH1-CH4) CD/LINE: CD or line terminal LINE: Line terminal PHONO 1-3: Turntable phono terminal Microphone input terminal (MIC1, MIC2) Effector input-output terminal (EFFECT RET

26、URN, EFFECT SEND) Player control (CH1, CH4) terminal (PLAYER CONTROL) Digital output terminal (DIGITAL OUT) Digital input (CH1, CH4) terminal (DIGITAL IN) Output terminal Master out 1, 2 terminal (MASTER OUT) Monitor out terminal (MONITOR OUT) Rec terminal (REC OUT) Power input terminal (AC IN ) fil

27、e:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0500000000o.html 5 Fader Replacement Instructions TOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0500000000o.html08-09-30 17:50:15 DJ Mixe

28、r Fader Replacement Instructions First, remove the AC power supply cord (AC mains lead) and follow the steps below to replace with a new fader. 1Remove all five channel fader, cross fader knobs, and the re- placement panel Remove the four plate screws on the replace- ment panel. Replacement panel 2R

29、emove the channel fader or cross fader to be replaced Do not let the screws fall inside the unit. -1 Remove the two fader fastening screws -2 Remove the fader Channel fader Turn on an angle and lift to remove. Cross fader Turn on an angle and lift to remove. -3 Remove the fader cable while hold- ing

30、 the 3 pin connector 3 pin connector -4 Cross fader Remove the two fastening screws, the optical device unit, and then the cross fader. Move the lever toward the center and remove. Do not change the shape of the optical device unit or the 4 pin terminal. Lever 4 pin terminal 3Attach the new channel

31、fader or cross fader Attach by performing the opposite of the re- move step. 4Attach the replacement panel and knobs file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0600000000e.html 6 Operation Checks and Component Replacement Procedures TOP PREVIOUS NEXT G Th

32、is section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. G For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. 6.1 Checking fo

33、r the output P.C.B., monitor P.C.B., sub P.C.B., headphones P.C.B. and front sw P.C.B. 6.2 Checking for the power transformer P.C.B. 6.3 Checking for the input P.C.B. and sub P.C.B. 6.4 Checking for the EQ P.C.B. and LED P.C.B. 6.5 Removal of each P.C.B. 6.5.1 Removal of sub P.C.B. and output P.C.B.

34、 6.5.2 Removal of the input P.C.B. 6.5.3 Removal of the EQ P.C.B. TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0600000000e.html08-09-30 17:50:21 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s060100

35、0000.html 6.1 Checking for the output P.C.B., monitor P.C. B., sub P.C.B., headphones P.C.B. and front sw P. C.B. TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (1 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez

36、/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (2 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.htm

37、l file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (3 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics

38、SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (4 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (5 of 10)08-09-30 17:50:

39、24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (6 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics

40、 SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (7 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html file:/C|/Documents and

41、Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (8 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html G Check the output P.C.B., monitor P.C.B., sub power P.C.B., headphones P.C.B. and front

42、 sw P.C. B. as shown below. file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (9 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html TOP PREVIOUS NEXT file:/C|/Documents

43、and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0601000000.html (10 of 10)08-09-30 17:50:24 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0602000000.html 6.2 Checking for the power transformer P.C.B. TOP PREVIOUS NEXT G Follow the (Step

44、1) - (Step14) of item6.1. G Check the power transformer P.C.B. as shown below. file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0602000000.html (1 of 2)08-09-30 17:50:26 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s060

45、2000000.html TOP PREVIOUS NEXT file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0602000000.html (2 of 2)08-09-30 17:50:26 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html 6.3 Checking for the input P.C.B. a

46、nd sub P.C.B. TOP PREVIOUS NEXT G Follow the (Step 1) - (Step14) of item6.1. :28file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html (1 of 4)08-09-30 17:50 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s06030

47、00000.html :28file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html (2 of 4)08-09-30 17:50 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html G Check the input P.C.B. and sub P.C.B. as shown below.

48、 :28file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html (3 of 4)08-09-30 17:50 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html TOP PREVIOUS NEXT :28file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0603000000.html (4 of 4)08-09-30 17:50 file:/C|/Documents and Settings/lopez/Pulpit/SHMZ1200/technics SH-MZ1200EB_EG_EK_PP_GN/s0604000000.html 6.4 Checking for the EQ P.C.B. and LED P.C.B. TOP PREVIOUS NEXT G Fol