Service manual pa 011437 19981101-45000 1.95k-998 printed in japan ’98.10 hamamatsu, japan contents specifications ................................................ 3/4 dimensions ........................................................... 4 panel layout .................................... 5 circuit...
Impor tant notice this manual has been provided for the use of authorized yamaha retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically yamaha products, are already known and under- stood by the users, and have therefo...
Specifications 3 mt400 dc 12v (650 ma or higher) 388 x 102 x 354 mm 2.8 kg ac adapter kpa4n, kpa6n c46–90 cassette tapes (type ii) 4-track/4-channel, one-way record-play 4-track record-play, hard permalloy x 1, 4-track erase, ferrite x1 dc servo motor x1 4.8 cm/s, 9.5 cm/s approximately+/–10% 0.12% ...
4 mt400 unit : mm dimensions h:102 d:354 w:388 w w w . X i a o y u 1 6 3 . C o m q q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 t e l 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://w...
Mt400 5 level 7 l –8 r 0 10 level 5 l –6 r 0 10 8 monitor/phones stereo st+cue cue stereo level min max 10 9 8 7 6 5 4 3 2 1 0 9 10 11 gain high 10 9 8 7 6 5 4 3 2 1 0 line mic –12 +12 mid –12 +12 low –12 +12 aux 1 0 10 aux 2 mix cue 0 10 0 10 pan input-flip tape tape mic/ line mic/line to l l r 1 1...
Mt400 6 12 13 14 15 16 17 18 19 20 pitch control tape speed switch rec select switches meter select switch dbx switch zero stop switch tape counter counter reset button cassette compartment recorder section transport section 4tr 4 stereo meter select rec select zero stop pitch noise reduction system...
Mt400 7 36 37 38 39 40 power on/off switch dc 12v sync out monitor outs stereo outs 30 31 32 33 4 +6 +3 0 –5 –10 +6 +3 0 –5 –10 power 3 2 1 r l rec 27 28 29 meter section aux send stereo input mic/line input insert i/o insert i/o 1 2 1 2 3 4 5 l 6 r 8 r 7 l 31 32 30 33 phones punch i/o 34 35 sync ou...
Mt400 8 mix 1/3 sub 1/3 sub 3/3 mix 3/3 rec 1/2 sub 2/3 mix 2/3 rec 2/2 circuit board layout www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.C...
9 block diagram mt400 ic101 3 1 ic103 2 7 ic104 3 1 ic201 3 1 ic303 2 7 ic105 3 1 ic106 ic107 ic110 ic110 ic111 ic108 ic109 2 1 6 7 2 1 6 7 2 1 6 7 2 1 6 7 2 1 3 1 6 7 6 7 mt400-3000 0 w w w . X i a o y u 1 6 3 . C o m q q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 t e l 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2...
10 disassembly procedure fig.1 mt400 [320]: bind head tapping screw-p 3x10 mfzn2bl (ep630660) [320] [320] 1. Lower case 1-1 remove the seven (7) screws marked [320]. The lower case can then be removed. (fig.1) 4. Sub 2/3, 3/3 circuit boards 4-1 remove the lower case. (see procedure 1.) 4-2 remove th...
11 fig.4 mt400 1 1a 2 3 4 5 6 7 1y 2a 2y 3a 3y v ss 8 9 10 11 12 13 14 v dd 6a 6y 5a 5y 4a 4y tc4069ubp ( ig001720 ) hex inverter 1 input (output)1 2 3 4 5 6 7 output (input)1 output (input)2 input (output)2 control2 control3 v ss 8 9 10 11 12 13 14 v dd control1 control4 input (output)4 output (inp...
12 mt400 to rec 1/2-cn504 to sub 1/3-cn101 to mix 3/3-cn110 to mix 2/3-cn109 to sub 2/3-cn107 to mix 2/3-cn112 to mix 2/3-cn108 to sub 1/3- cn102 circuit boards mix-1/3 circuit board component side mix : mt400-3400 w w w . X i a o y u 1 6 3 . C o m q q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 t e l 1 3 9...
From mix 1/3-cn101 1-insert i/o mic / line input 2-insert i/o from mix 1/3-cn111 to mix 1/3-cn109 1 2 3 4 5l 6r 7l 8r stereo input from mix 1/3-cn103 1 2 aux send sync out from mix 1/3-cn104 from rec 1/2-cn507 l r stereo out l r monitor out to rec 1/2-cn506 dc in power sw. To rec 1/2-cn501 to rec 1/...
14 from rec 1/2-cn503 punch i/o phones to rec 2/2-cn508 from sub 1/3-cn104 from sub 3/3-cn109 from sub 1/3-cn103 to sub 2/3-cn108 from mix 1/3-cn105 mt400 rec-1/2 circuit board component side rec-2/2 circuit board component side rec : mt400-3500 w w w . X i a o y u 1 6 3 . C o m q q 3 7 6 3 1 5 1 5 ...
Mt400 15 inspections a. Preparation 1. Set up set the level controls and switches as follows (unless otherwise specified). 1-1 ch 1, 2, 3, 4 gain volume line eq/ high, mid, low volume center aux 1, 2 volume minimum cue volume minimum input flp switch mic/ line pan volume center ch fader minimum 1-2 ...
Mt400 16 5. Test equipment required low frequency oscillator ac voltmeter (level meter) dc voltmeter oscilloscope frequency counter mirror cassette sony: mc112c (tx911100) torque meter sony: tw-2231 (tx913450), etc. 6. Mechanical adjustment 6-1 tape running check that a tape curl is not created when...
Mt400 17 www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.
Mt400 18 www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.
Mt400 19 troubleshooting symptom advice mt400 cannot be turned on. Make sure the ac adapter is connected to a suitable ac wall outlet securely and plugged into the dc 12v connector at the rear of the mt400. Make sure that a correct ac adapter is being used. Make sure that the mt400 power switch is s...
Mt400 20 www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.
Opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp a c b d g f e j i h l k a b c d e f g h i j k l 9 8 7 6 5 4 3 2 1 21 mt400 mt400 mt400 mt400 circuit diagram 1/4(mix1/3,2/3,3/3) mt4...
Dbx opamp inverter 1/2 opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp opamp inverter inverter analog switch analog switch inverter dbx dbx dbx to mecha head to mecha head to mecha head to mecha head to sub1/3 cn103 to rec 1/2-2/2 c2 1/2-2/2 to rec a4 to rec 1/2-2/2 b2 1/2-2/2 g6 to rec ...
2/2 inverter inverter opamp inverter from shield sheet to rec1/2-1/2 b5 to rec1/2-1/2 k7 6 g f h 5 4 3 2 1 a b a b c d e c d e f g h 23 mt400 mt400 mt400 mt400 circuit diagram 3/4(rec1/2-2/2,rec2/2) mt400-3200 1 to rec1/2-1/2 k6 to rec1/2-1/2 k7 to rec1/2-1/2 b5 rec1/2 rec2/2 w w w . X i a o y u 1 6...
Regulator to rec 1/2 cn506 led driver led driver led driver led driver a b c d e f g h 6 5 4 3 2 a 1 c b d g f e h 24 mt400 mt400 mt400 mt400 circuit diagram 4/4(sub-1/3,2/3,3/3) mt400-3300 1 pc2410ahf (xr833a00) 1 regulator +12v μ 3: output 2: common 2 3 1: input sub1/3 sub2/3 sub3/3 w w w . X i a ...
Parts list contents overall assembly .............................................. 2 cassette mechanism assembly ... 3 electrical parts ............................................. 5 the numbers with “pc.” or “pcs” in “remarks” show quantities for each unit. The parts with “--” in “part no.” are n...
Mt400 2 overall assembly 40 50 60 70 80 130 u80 u70 u160 u150 140 130 280 300 100 320 110 110 120 230 320 160 210 320 l30 l10 l20 120 260 320 220 320 270 200 320 290 10 20 30 150 90 40 170 310 320 250 240 u60 u90 u90 u30 u40 u20 u50 u110 u100 u130 u120 u140 5p 12p 15p cn105 mix cn103 sub cn104 sub 3...
Mt400 3 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * : new parts ref no. Part no. Description remarks qty rank rank : japan only overall assembly mt400 overall assembly mt400 10 upper case unit mt400-1100 20 lower case unit mt400-1200 30 cassette mechanism unit mt4...
Mt400 4 cassette mechanism assembly a60 a30 159 126 168 a60 153 127 a20b 169 166 160 158 153 133 134 a90 170 132 125 123 a80 166 167 101 128 170 168 129 173 a40 141 151 a70 a50 142 139 140 115 110 111 112 136 137 121 114 118 102 103 162 121 122 156 104 105 106 107 108 109 113 117 119 130 131 116 157...
5 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * : new parts ref no. Part no. Description...
6 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * : new parts ref no. Part no. Description remarks qty rank rank : japan only : new parts ref no. Part no. Description remarks qty rank rank : japan only electrical parts mt400 c413 ceramic capacitor up050 10p sl j 50v 01 c414 myl...
Mt400 7 * * * * * * * * * * * : new parts ref no. Part no. Description remarks qty rank rank : japan only jk202 phone jack ykb21-5074g input 2 insert i/o jk301 phone jack ykb21-5012g mic/line input 3 jk401 phone jack ykb21-5012g mic/line input 4 q101 digital transistor dtc143tsa-tp q201 digital tran...
Mt400 8 : new parts ref no. Part no. Description remarks qty rank rank : japan only r231 carbon resistor rd16s 8.2k j 1/6w 01 r232 carbon resistor rd16s 10k j 1/6w 01 r233 carbon resistor rd16s 39k j 1/6w 01 r241 carbon resistor rd16s 220 j 1/6w 01 r242 carbon resistor rd16s 100 j 1/6w 01 r301 carbo...
Mt400 9 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * r519 carbon resistor rd16s 100k j 1/6w 01 r521 carbon resistor rd16s 10k j 1/6w 01 -523 carbon resistor rd16s 10k j 1/6w 01 r524 carbon resistor rd16s 3.3k j ...
Mt400 10 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 部 品 名 vr303 rotary variable resistor evuf3kfk4b54 b50k high ch3 vr304 rotary variable resistor evuf3kfk4b54 b50k mid ch3 vr...
Mt400 11 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 部 品 名 c205 electrolytic cap. Uvr1a 220 m 10v c206 mylar capacitor ecqb1h 0.01 j 50v 01 c207 electrolytic cap. Uvr1h 3.3 m 50v c208 elec...
Mt400 12 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * c334 mylar capacitor ecqb1h 0.047 j 50v 01 c335 mylar capacitor ecqb1h 2200p j 50v 01 c336 mylar capacitor ecqb1h 1000p j 50v 03 ...
Mt400 13 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * c516 electrolytic cap. Uvr1e 470 m 25v c517 ceramic capacitor up050 0.1 f z 50v 01 c518 0ceramic capacitor rpu07f 0.01 fz 50 c519 ceramic capacitor rpu07f 0.01 fz 50v cn101 ...
Mt400 14 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * q103 digital transistor dtc314ts-tp q104 digital transistor dtc114tsa-tp q105 digital transistor dtc114tsa-tp q10...
Mt400 15 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * r131 carbon resistor rd16s 5.6k j 1/6w 01 r132 carbon resistor rd16s 12k j 1/6w 01 r133 carbon resistor rd16s 10k j 1/6w 01 r134 carbon resistor rd16s 33k j 1/6w 01 r135 carbon resistor rd16s 51k...
Mt400 16 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * r304 carbon resistor rd16s 100 j 1/6w 01 r305 carbon resistor rd16s 1m j 1/6w 01 r306 carbon resistor rd16s 100k j 1/6w 01 r307 carbon resistor rd16s 330k j 1/6w 01 r308 carbo...
Mt400 17 : new parts ref no. Part no. Description remarks qty rank rank : japan only r430 carbon resistor rd16s 100k j 1/6w 01 r431 carbon resistor rd16s 5.6k j 1/6w 01 r432 carbon resistor rd16s 12k j 1/6w 01 r433 carbon resistor rd16s 10k j 1/6w 01 r435 carbon resistor rd16s 51k j 1/6w 01 r436 car...
Mt400 18 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -303 connector base post 2p ph-b2b tp401 connector base post 2p ph-b2b -403 connector base post 2p ph-b2b tp501 connector base post 2p ph...
Mt400 19 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * * * * * * * * * * d111 diode 1sr139-400(t-32) 01 d201 led slr-342vrtc7 ch2 level meter +6,+3,0 01 -203 led slr-342vrtc7 01 d204 led slr-342gtc7 ch2 level meter -5 01 d205 led slr-342gtc7 ch2 level meter -1...
Mt400 20 : new parts ref no. Part no. Description remarks qty rank rank : japan only * * * * * sw301 slide switch sssu043-p06n1 rec select 3 sw401 slide switch sssu043-p06n1 rec select 4 vr101 rotary variable resistor evjz14f02b23 2kb pitch vr102 trimmer potentiometer evnd8aa03b13 1kb vr103 trimmer ...
