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Yamaha DA824 Service Manual

Other manuals for DA824: Owner's Manual

Summary of DA824

  • Page 1

    Service manual pa 011524 hamamatsu, japan 1.44k-4111 k printed in japan '00.05 contents specifications ···································································· 3 panel layout ······································································· 4 circuit board layout ··················...

  • Page 2

    Da824 2 warning: chemical content notice! The solder used in the production of this product contains lead. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the california health and welfare agency (and possibly other ...

  • Page 3: Specifications

    Specifications da824 3 my8-ae, my8-td sampling rate my8-at da conversion resolution frequency response dynamic range * 1 gain error thd * 2 hum & noise level * 1 crosstalk signal delay peak nominal indicators signal lock power power requirements power consumption dimensions (w x h x d) weight free-a...

  • Page 4: Panel Layout

    On off power da converter lock peak signal nominal peak signal nominal 1 2 3 4 5 6 7 8 1 2 3 4 slot com thru 75 in on off word clock da converter model da824 8 2 3 4 5 6 7 8 2 3 4 5 6 7 1 output (bal) 1 5 6 7 8 9 10 11 1 peak, nominal & signal indicators 2 lock indicator 3 power indicator 4 power sw...

  • Page 5: Circuit Board Layout

    Da824 5 circuit board layout da dc pn sw jk main mysl 3nc2-v536450 3 cn004 cn905 cn902 cn003 cn001 cn011 cn962 cn961 cn963 cn010 cn008 cn009 cn005 cn006 cn002 cn007 cn002 cn102 cn101 cn301 cn501 cn701 cn302 cn502 cn702 cn901 cn904 cn052 cn053 cn054 cn051 cn906 cn003 ac mysl power transformer.

  • Page 6: Dimentions

    Da824 6 dimentions 67.5 67.5 345 430 13 88 h: 97.5 2 30 23 0 48 (33) 274 355 d: 366.8 w: 480 unit: mm.

  • Page 7: Block Diagram

    Da824 7 word clocl select ic917 44p ym3436dk (dir2) word clocl select d.F/da ak4393 ic918 44p ic002 28p ic101 ic102 ic102 ic103 ic103 ic203 ic203 output 1 jk101 jk102 signal +4dbv 15dbu 18dbu 24dbu lpf nominal peak lock sync.Fs.64fs.128fs.256fs ym3436dk (dir2) word clock in thru 75 ic902 ic923 sdata...

  • Page 8: Disassembly Procedure

    Da824 8 disassembly procedure da jk top cover power transformer if plate [180] [360] [180] [420] [290] [380] x16 [280] [a] [400] x14 [300] [400]: bind head tapping screw-b a4.0x8 mfzn2bl (vc688800) (fig. 1) [420]: bind head screw a4.0x12 mfzn2bl (vp156900) (fig. 2) [350] main 1. Top cover 1-1 remove...

  • Page 9

    Da824 9 [250] [240] [110] x2 fuse [240] [200] dc assembly opt assembly [200] mysl ac ac [250] [240]: bind head screw 4.0x8 mfzn2bl (eg340360) [250]: bonding tapping screw-b 3.0x8 mfzn2bl (vn413300) (fig. 3) [60a]: bind head tapping screw-b a4.0x8 mfzn2bl (vc688800) [110]: bonding tapping screw-b 3.0...

  • Page 10

    [60b] [40] [130] [130] [130] dc [40]: bind head tapping screw-b a3.0x8 mfzn2bl (vp157000) [60b]: bonding tapping screw-b 3.0x8 mfzn2bl (vn413300) (fig. 5) [130]: oval head screw 4.0x8 mfzn2bl (vs153600) (fig. 6) • dc assembly [40] [40] transistor holder rack mount angle rack mount angle [130] fuse f...

  • Page 11: Lsi Pin Description

    Da824 11 lsi pin description pin no. I/o function name pin no. I/o function name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 daux hdlt dout vfl opt sync mcc wc mcb mca sksy xi xo p256 lock vss tc dim1 dim0 dom1 dom0 km1 i o o o o o o o o o i i o o o o i i i i i auxiliary input for audio...

  • Page 12

    Da824 12 pin no. I/o function name pin no. I/o function name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 pe14 pe15 vss a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 vcc a17 ...

  • Page 13: Ic Block Diagram

    Ic block diagram hd74lv04afpel (is000400) hd74lvu04afpel (xy102a00) hex inverter main: ic911,915 hd74lv08afpel (is000800) quad 2 input and main: ic912 hd74lv32afpel (is003200) quad 2 input or main: ic928 hd74lv74afpel (is007400) dual d-type flip-flop main: ic914 sn74lv138ansr (is013810) 3 to 8 demul...

  • Page 14

    Da824 14 sn75121nsr (xu816a00) dual line driver main: ic923 sn75124ns (xn976a00) triple line receiver main: ic902 sn75c1168nsr (xu073a00) line driver / receiver main: ic906 njm2068d-d (xa987a00) njm2068md-t1 (xj553a00) njm4556al (xp844a00) dual operational amplifier pn: ic101,301,501,701 da: ic101-1...

  • Page 15: Circuit Boards

    3na-v485540 ac cord power transformer power on/off 2 3na-v485500 ac, sw(h,w,b): ac, sw(j,u,v): 2 ac cord power transformer power on/off da824 15 circuit boards ac circuit board (h,w,b) (xy032c0) ······································································· 15 ac circuit board (j, u, v) (xy...

  • Page 16

    3na-v485500 to mysl-cn052 power transformer to main-cn905 2 a' a to da-cn001 to pn-cn963 a' a power transformer dc circuit board (j, u, c) component side da824 16.

  • Page 17

    3na-v485540 to mysl-cn052 power transformer to main-cn905 2 b' b to da-cn001 to pn-cn963 b' b power transformer da824 17 component side dc circuit board (h,w,b).

  • Page 18

    3na-v485460 from da-cn002 12345 1 c' c c' c from main-cn906 from dc-cn009 67 8 pn circuit board component side da824 18.

  • Page 19

    Da824 19 3na-v485480 in 75 word clock off on thru 1 com to da-cn003 from dc-cn010 to mysl-cn053 to mysl-cn054 d' d main circuit board.

  • Page 20

    Main,mysl: 3na-v485480 1 d' d to pn-cn961 from main-cn902 from main-cn901 from dc-cn008 mysl circuit board component side component side da824 20

  • Page 21

    E' e 3na-v485480 1 da824 21 main circuit board.

  • Page 22

    E' e main,mysl: 3na-v485480 1 mysl circuit board pattern side pattern side da824 22.

  • Page 23

    3na-v485470 1 f' f output 1 2 3 4 5 6 to pn-cn962 to dc-cn011 to jk-cn501 to jk-cn301 to jk-cn301 da824 23 da circuit board.

  • Page 24

    Da, jk: 3na-v485470 1 f' f 7 8 output output from main-cn904 to jk-cn701 8 7 6 5 4 3 2 1 to da-cn102 to da-cn302 to da-cn502 to da-cn702 jk circuit board component side component side da824 24.

  • Page 25

    3na-v485470 1 g' g da circuit board da824 25.

  • Page 26

    Da, jk: 3na-v485470 1 g' g jk circuit board pattern side pattern side da824 26.

  • Page 27: Inspection

    Da824 27 (5) cross talk between odd channels and even channels conditions: input signal into odd channels. Even channels shorted using 150 ohms. Inspection 1. Preparations · 0 dbu=0.775 vrms · 0 dbv-1 vrms=2.2 dbu · the output impedance of the oscillator connected is 150 ohms. · the input impedance ...

  • Page 28

    Da824 28 (2) fs=39.69 khz (44.1 khz-10 %) · set the oscillator to 39.69 khz. · make the same input as 2-4 1 and confirm that the same output level is attained. Or, conduct a listening test for one minute to check that there is no noise. 3. Sound perform a listening test to confirm the following item...

  • Page 29: Test Program

    Da824 29 1. Reparations · connect pc (operating ms windows) to com terminal. · input 48 khz word clock to word clock in terminal. · insert the slot inspection jig (tx800810) into the slot. Lmy-slot inspection jig specification manual the test program inspects the following eight items. 1. Sram cpu c...

  • Page 30

    3. Automatic inspection use the keyboard for the pc to enter "test" and execute program the following items will be inspected automatically. At the end, a list of items determined to be ng (no good) will be displayed on the screen. 1. Sram (ic926, ic927) cpu connection check 2. Slot cpu 3. Slot cloc...

  • Page 31

    Da824 31 slot power supply peripheral connection check only the ng systems from the test results will be shown on the screen. [5] wc bnc displayed on the screen when the results of the word clock in terminal/ jk901 and cpu connection are ng. 4. Manual inspections in addition to the automatic tests, ...

  • Page 32: Flash Rom Upgrade

    Da824 32 flash rom upgrade the da824 is equipped with flash memory (main:ic919). The software in the flash memory can be upgraded from the com terminal. Upgrades can also be performed from a windows pc using the dedicated software. When the power is turned on, a check is made to confirm that the sys...

  • Page 33: Parts List

    Contents overall assembly······························································································································ 2 front panel assembly ····················································································································· 4 rear ...

  • Page 34: Overall Assembly

    Da824 2 overall assembly 390 400 90 50 380 350 290 420 410 280 70 140 270 370 372 80 90 110 120 125 200 360 195 36 10 35 150 160 55 240 210 250 220 15 38 37 60 70 120 125 110 180 170 110 100 20 30 130 230 310 190 130 300 40 260 rear panel assembly: see page 5 front panel assembly: see page 4 dc asse...

  • Page 35

    Da824 3 overall assembly overall assembly overall assembly overall assembly overall assembly bottom chassis label leg bind head tapping screw-b protection sheet label cord keep label rear panel assembly rear panel assembly rear panel assembly rear panel assembly bind head tapping screw-b bind head s...

  • Page 36: Front Panel Assembly

    Da824 4 front panel assembly front panel assembly front panel assembly sub chassis circuit board bind head tapping screw-b circuit board circuit board bonding screw front panel oval head screw power switch knob escutcheon, power switch description 10 20 30 40 40 50 60 70 80 90 ref no. -- -- v4067800...

  • Page 37: Rear Panel Assembly

    Da824 5 rear panel assembly rear panel assembly rear panel assembly rear panel assembly rear panel assembly rear panel rear panel rear panel ac cord assembly ac cord assembly ac cord assembly ac cord assembly cord strain relief cord strain relief cord strain relief circuit board circuit board bind h...

  • Page 38: Dc Assembly

    Da824 6 dc assembly dc assembly dc assembly heat sink insulation sheet circuit board circuit board bonding tapping screw-b holder, transistor pan head screw fuse fuse fuse fuse fuse fuse fuse fuse fuse fuse description 10 20 30 30 40 50 60 f2 f2 f3 f3 f4 f4 f5 f5 f6 f6 ref no. V5452300 v5452500 -- v...

  • Page 39: Electrical Parts

    Da824 7 electrical parts circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board circuit board ac shield plate jumper wire capacitor...

  • Page 40

    Da824 8 fuse holder fuse holder ic ic ic ic ic ic jumper wire jumper wire land terminal land terminal line filter flame proof c. Resistor metal oxide film resistor carbon resistor flame proof c. Resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor ...

  • Page 41

    Da824 9 electrolytic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Mylar capacitor mylar capacitor monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Mo...

  • Page 42

    Da824 10 monolithic ceramic cap. Monolithic ceramic cap. Mylar capacitor mylar capacitor monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Monolithic ceramic cap. Electrolytic cap. Electrolytic cap. Monolit...

  • Page 43

    Da824 11 ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic xlm connector phone jack xlm connector phone jack xlm connector phone jack xlm connector phone jack xlm connector phone jack xlm connector phone jack xlm connector phone jack xlm connector phone jack chip induc...

  • Page 44

    Da824 12 metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor carbon resistor carbon resistor carbon resistor (chip) carbon resistor (chip) carbon resistor (chip) carbon resistor (chip) metal film resistor metal film resistor metal film resistor metal f...

  • Page 45

    Da824 13 carbon resistor (chip) metal film resistor metal film resistor metal film resistor metal film resistor carbon resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film r...

  • Page 46

    Da824 14 metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor carbon resistor carbon resistor (chip) metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film r...

  • Page 47

    Vc328800 vc329500 vc329500 vc329400 vc329400 hf754750 hf754750 rd258100 rd258100 rd257100 rd257100 v3737500 v3737500 v3737500 v3737500 v3737500 v3737500 v3737500 v3737500 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk432900 vk4...

  • Page 48

    Ub245100 vr327300 vr327300 vu328200 v i 8 7 9 1 0 0 vq048500 vq048500 vq048500 vq048500 vu196300 vj861600 v i 8 7 8 3 0 0 vf728300 vt332900 vt332900 vq761400 vq761400 fz006970 fz006970 vq761400 i s 0 2 4 5 0 0 xn976a00 i s 0 2 4 5 0 0 i s 0 2 4 5 0 0 xu073a00 i s 0 2 4 5 0 0 i s 0 2 4 5 0 0 xy721a00...

  • Page 49

    Rd259100 rd256200 rd256200 rd256220 rd253470 rd257100 rd256150 rd250000 v i 1 9 5 1 0 0 rd250000 v i 1 9 5 1 0 0 re047100 re047100 vr365100 -- -- vl907400 v4854600 va078900 um407100 um407100 vt439600 vt439600 um407100 um407100 vt439600 vt439600 um407100 um407100 vt439600 vt439600 um407100 um407100 v...

  • Page 50

    Da824 18 diode diode diode diode diode diode lc filter lc filter ic ic ic ic led led led led led led led led led led led led led led led led led led led led led led led led led led metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor metal film resistor...

  • Page 51

    Da824 19 metal film resistor metal film resistor metal film resistor metal film resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor carbon resistor metal film resistor metal film resistor metal film resistor metal f...

  • Page 52

    -716 r717 -719 r801 r802 r803 r804 r805 r806 r807 r808 -810 r811 -813 r814 -816 r817 -819 r960 r961 r962 r963 tr101 -103 tr104 -106 tr201 -203 tr204 -206 tr301 -303 tr304 -306 tr401 -403 tr404 -406 tr501 -503 tr504 -506 tr601 -603 tr604 -606 tr701 -703 tr704 -706 tr801 -803 tr804 -806 tr960 tr961 w9...

  • Page 53

    Da824 21 fuse fuse fuse fuse fuse fuse description ref no. Kb003560 kb003060 kb003570 kb003070 kb003620 kb003100 part no. 1.60a ju 1.60a s 2.00a ju 2.00a s 4.00a ju 4.00a s j,u,v h,w,b j,u,v h,w,b j,u,v h,w,b remarks qty rank 01 01 01 01 01 01 *: new parts rank : japan only.

  • Page 54

    12 11 10 9 8 7 6 5 4 3 2 1 a b c d e f g h i j k l m n o p q 12 11 10 9 8 7 6 5 4 3 2 1 a b c d e f g h i j k l m n o p q da824 overall circuit diagram 1/3 (main,mysl) da824 da824 da824 mysl main kec-92534-3 transceiver transceiver transceiver transceiver transceiver transceiver liner driver/ receiv...

  • Page 55

    : mylar capacitor 12 11 10 9 8 7 6 5 4 3 2 1 a b c d e f g h i j k l m n o p q 12 11 10 9 8 7 6 5 4 3 2 1 a b c d e f g h i j k l m n o p q da824 overall circuit diagram 2/3 (da, jk) da824 da824 da824 kec-92533 jk kec-92355 da to main-cn904 to dc-cn011 to pn-cn962 output (bal) 1 output (bal) 2 outpu...

  • Page 56

    12 11 10 9 8 7 6 5 4 3 2 1 a b c d e f g h i j k l m n o p q 12 11 10 9 8 7 6 5 4 3 2 1 a b c d e f g h i j k l m n o p q da824 overall circuit diagram 3/3 (pn, ac, dc, sw) da824 da824 da824 pn dc sw ac op amp op amp to da-cn002 to main-cn906 1 1 1 3 3 3 5 5 5 7 7 7 8 8 8 6 6 6 2 2 2 4 4 4 op amp op...