Yamaha MDX-596 Service Manual

Other manuals for MDX-596: Owner's Manual, Owner's Manual

Summary of MDX-596

  • Page 1

    Mdx-596 mdx-596 1 0 0 7 1 8 service manual mdx-596 important 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 inherant to the industry, and more specifically yamaha products, are already kno...

  • Page 2

    Mdx-596 mdx-596 ac leakage tester or equivalent equipment under test insulating table wall outlet ■ to service personnel 1 critical components information components having special characteristics are marked z and must be replaced with parts having specifications equal to those originally installed....

  • Page 3

    Mdx-596 mdx-596 2 ■ rear panels ▼ r model ▼ g, b models ▼ a model varo! : avattaessa ja suojalukitus ohitettaessa olet alttiina nÄkymÄttÖmÄlle laser-sÄteilylle. ÄlÄ katso sÄteeseen. Varning! : osynlig laserstrÅlning nÄr denna del Är Öppnad och spÄrren Är urkopplad. Betrakta ej strÅlen. Laser diode p...

  • Page 4

    Mdx-596 mdx-596 3 ■ specifications units : mm (inch) 265.9 (10 – 1/2") 287.8 (11 – 5/16") 15.2 (5/8") 6.7 (1/4") 435 (17–1/8") 16 (5/8") 80 (3 – 1/8") 96 (3 – 3/4") digital audio system system minidisc digital audio system disc minidisc recording method magnetic field variation overwrite reading met...

  • Page 5

    Mdx-596 mdx-596 ■ disassembly procedures (remove parts in disassembly order as numbered.) fig. 2 4 ■ internal view 1. Removal of top cover a. Remove 4 screws ( q ) and 3 screw ( w ) in fig. 1. 2. Removal of front panel a. Remove 4 connectors. Cb5, cb6, cb7, cb401 b. Remove 3 screws ( e ) in fig. 1. ...

  • Page 6

    Mdx-596 mdx-596 5 disassembly of md recorder unit remove the md recorder unit according to steps 1 and 3 of the disassembly procedure (page 4). Removal of magnetic head (fig.4) • once the magnetic head is removed, it will be neces- sary to perform “confirmation of magnetic head installation position...

  • Page 7

    Mdx-596 mdx-596 6 fig. 5 removal of md loading p.C.B./loading motor (fig. 5) 1. Remove 1 screw (b1). 2. Remove 3 hooks (b2) and then remove the md loading p.C.B. 3. Remove 2 screws (b3) and then remove the loading motor. (b3)x2 ø1.7x 3mm (b1)x1 ø1.7x 6mm (b2)x2 (b2)x1 md loading p.C.B. Loading motor...

  • Page 8

    Mdx-596 mdx-596 7 test mode 1. How to enter the test mode 1) press the power button while pressing the set/enter button and the play/pause button. Version of microprocessor is displayed about 1 second. T s m 1 c * * e * * version of eeprom protect data (from 01) version of microprocessor rom (from 0...

  • Page 9

    Mdx-596 mdx-596 8 3. How to cancel test mode (entry of eeprom adjustment value) 1) be sure to perform auto preliminary adjustment, auto adjustment and auto afb adjustment. ( “ complete ” appears on the display) 2) after completing above ajustments, press the rec button. (entry to eeprom initiates th...

  • Page 10

    Mdx-596 mdx-596 description of test modes 1. Eject mode to temp setting (of eeprom setting) [ _ _ eject _ _ _ ] to control setting (of eeprom setting) laser power setting (record/reproduction power) is performed. 2. Auto preliminary adjustment mode automatic preliminary adjustment is performed. [ _ ...

  • Page 11

    Mdx-596 mdx-596 10 ● confirmation of pick-up laser power recording and reproduction can be checked by using the laser power meter. However it should be used for checking only because there is variation in its measurement. When the measured value is excessively deviated from the reference value, repl...

  • Page 12

    Mdx-596 mdx-596 11 3. Auto adjustment mode disc in use: tdys1 (sony) [for reproduction] or commercially available mini disc for recording step setting method remark display 1 2 3 4 5 6 set the test mode. Load a disc. Press the set/enter button once. Adjusted values are output. Adjustment is complete...

  • Page 13

    Mdx-596 mdx-596 7. Test-rec mode disc in use: commercially available mini disc for recording (it is used to check the rec function at the specified address.) step setting method remark display 1 2 3 4 5 load a disc. Press the title button twice. Press the set/enter button. Press the set/enter button...

  • Page 14

    Mdx-596 mdx-596 ● forced rotation of loading motor it is possible to force the loading motor to rotate by turning the jog dial when the microprocessor version ( tsm1c**e** ) of the test mode or eject appears on display. (this is used when the disc cannot be ejected.) jog dial y : forced feeding of t...

  • Page 15

    Mdx-596 mdx-596 14 fig. 11 mechanism adjustment when making an adjustment, be sure to connect an extension cable for servicing and an expansion p.C.B. As shown in fig.12. Oscilloscope gnd ch1 ch2 x y ic1201 no.4 pin gnd (tp1202) ic1201 no.11 pin ein (tp1253) ic1201 no.12 pin fin (tp1254) 100k 470p 4...

  • Page 16

    15 eeprom setting mode transition diagram note) to return to the sub menu or main menu display of the test mode, press the delete/cancel button. 5. Eeprom setting mode disc in use: commercially available mini disc for recording (used to confirm/adjust setting values) 1) start the test mode. 2) load ...

  • Page 17

    16 slg ❍ ❍ 3e h sl2 ❍ ❍ 10 h sldlim ❍ ❍ 7f h sldlev ❍ ❍ 12 h slklvk ❍ ❍ 55 h slklvt ❍ ❍ 2e h slklvm ❍ ❍ 55 h slbkm ❍ ❍ 08 h slkrio ❍ ❍ 60 h slkroi ❍ ❍ 68 h slk1io ❍ ❍ 68 h slk1oi ❍ ❍ 60 h ● slide setting (sled) item on display set value ● control setting (control) item on display set value control1 ...

  • Page 18

    Mdx-596 mdx-596 ■ special test mode ● how to set to the special test mode press the power button while pressing the set/enter button and the stop button. Then all the indicators will light up. ● operation procedure every time the set/enter button is pressed, lighting of indicators and items on the d...

  • Page 19

    Mdx-596 mdx-596 18 can't rec can't copy digin unlock toc full utoc err r utoc err a utoc err l0 ~ 4 not audio disc full playback md protected error on display description countermeasure ■ error display • defect occurred 10 times continuously during rec- play. • recordable cluster became “0” due to o...

  • Page 20

    Mdx-596 mdx-596 19 can' t edit tmp over!! Disc err r disc err s disc err w toc err s toc err r u toc w err focus err blank disc toc w error eeprom error error on display description countermeasure mechanism error error on display description er_md2_* the head fails to move up. Er_md3_* the head fail...

  • Page 21

    Mdx-596 mdx-596 20 yes no no when md fails to operate when the objective lens of the optical pickup becomes dirty, md may fail to operate. Clean the objective lens first and check md for reproduction function. If it still fails to operate, check according to the following flow charts. Contaminant on...

  • Page 22

    Mdx-596 mdx-596 21 no ▼ yes no ▼ yes ▼ yes yes ▼ yes ▼ yes ▲ ▲ ▲ disc cannot be loaded properly. Does the loading function work properly when a disc is inserted? Does no.5 pin of cn1401 become “h”? Check cn1401, cn1931 and sw1932. Does a change occur at either no.12 or 13 pin of ic1601? Does a chang...

  • Page 23

    Mdx-596 mdx-596 22 ▼ no ▼ yes ▲ ▼ ▼ normal reproduction applicable when the e2-prom value has been confirmed as normal in the test mode is initialization done properly for reproduction of a high reflecting disc? Does the play time display count up properly? Is the disc turning properly? Check ic1201...

  • Page 24

    Mdx-596 mdx-596 23 yes ▲ ▲ yes no ▲ ▼ yes ▼ yes ▲ recording/reproduction function load a low reflection disc and after confirming the audio output in the normal reproduction mode, execute recording/reproduction. Check that the disc is not in the recording inhibited status. Is an rf waveform availabl...

  • Page 25

    Mdx-596 mdx-596 24 ▼ yes ▲ ▲ ▼ yes spindle motor does not run. Is a correct waveform provided at no.24 and 25 pins of ic1201 during the auto adjustment mode step 3 in the test mode? Check no.24 and 25 pins of ic1201 as well as solder connections and parts of the peripheral circuit. Is a waveform pro...

  • Page 26

    Mdx-596 mdx-596 25 ■ ic data mode sw bpf bias adip agc diff resistor & sw efm agc rf1 rf2 rf3 rf4 refi refo aout asw ain bin bsw bout 2-1 adagi adagc adipnf adipo gnd2 wbo vcc2 opicpw disc sgain dtemp 1234 1+2 pin 3+4 pitg nin gnd1 bias vcc1 efmagc dcnf efmo eout esw ein fin fsw fout eout bout aout ...

  • Page 27

    Mdx-596 mdx-596 26 the * marked terminal is a terminal which is not connected externally (open terminal). No. Pin name 33* adipnf 34 adagc 35 adagi 36 2-1 37 efmo 38 dcnf 39 efmago 40 vcc1 41 bias 42 gnd1 43 nin 44 pitg 45 3+4 46 pin 47 1+2 48 1234 function agc amplifier output terminal for adip sig...

  • Page 28

    Mdx-596 mdx-596 27 no. Pin name i/o 10 bin i 11 ein i 12 fin i 13 vbat i 14 vdd1 15 dgnd 16 test2 i 17* x176ko o 18 fodrf o 19 fodrr o 20 trdrf o 21 trdrr o 22 sldrf o 23 sldrr o 24 spdrf o 25 spdrr o 26 raa3 o 27 raa2 o 28 raa1 o 29 raa0 o 30* raa10 o 31 vdd2 32 raa4 o 33 raa5 o 34 raa6 o 35 raa7 o...

  • Page 29

    Mdx-596 mdx-596 28 no. Pin name i/o 65 xo o 66 din i 67 dout o 68 pllbvg o 69 dgnd 70 lrck o 71 bclk o 72 dfck o 73 addata i 74 dadata o 75* femon o 76* totmon o 77* temon o 78 sbck i/o 79 sbo i/o 80 sbsy i/o 81 sfsy i/o 82 fok o 83 sense o 84 cout o 85 mcck o 86 dintx o 87 vdd2 88 dgnd 89 rstx i 90...

  • Page 30

    Mdx-596 mdx-596 29 pin no. Name function 1, 2 dq0, dq1 data input/data output 3 we write enable 4 ras low address strobe 5 a9 address input 6 — 9 a0-a3 address input 10 vdd power supply (3.3v) 11 — 15 a4-a8 address input 16 oe output enable 17 cas column address strobe 18, 19 dq2, dq3 data input/dat...

  • Page 31

    Mdx-596 mdx-596 30 no. Pin name i/o 1 4m/16m o 2 64m o 3 ldvar o 4* adjs o 5 cin i 6* nc 7 unlock i 8 byte i 9 cnvss i 10* stid out o 11* seach out o 12 reset i 13* nc 14 vss 15 mcck i 16 vcc 17 p85 i 18 dint i 19 sfsy i 20 st-id i 21 serch i 22 mdrsw o 23* cdb sel o 24 dsense i 25 p-down i 26 hd on...

  • Page 32

    Mdx-596 mdx-596 31 no. Pin name i/o 55* p37 o 56* p36 o 57* p35 o 58* p34 o 59* p33 o 60* p32 o 61 p31 o 62 vcc i 63 innsw i 64 gnd 65 l3 data o 66 l3 mode o 67 l3 clk o 68* p24 o 69* p23 o 70 pcnt0 o 71* last o 72 ld on o 73 a/b o 74 sbsy o 75* dap on o 76* dfs0 o 77* dfs1 o 78 p12 o 79 p11 o 80 xr...

  • Page 33

    Mdx-596 mdx-596 32 pin no. Name function 1 vssa(adc) adc analog ground 2 vdda(adc) adc analog power supply 3 vinl adc input (left) 4 vref(a) adc reference voltage 5 vinr adc input (right) 6 vadcn adc reference voltage n 7 vadcp adc reference voltage p 8* mc1 mode control 1 (pull-down) 9* mp1 multi-p...

  • Page 34

    Mdx-596 mdx-596 33 ic6 : m30622m8-xxxfp main system microprocessor no. Port i/o name 1 p96/anex1 i/o 2 p95/anex0 i/o 3 p94/da1 i/o 4 p93/da0 i/o 5 p92/tb2in o dig_sw 6 p91/tb1in o /lmute 7 p90/tb0in 8 byte i gnd 9 cnvss i gnd 10 p87/xcin i/o 11 p86/xcout i/o 12 /reset i /reset 13 xout o xout 14 vss ...

  • Page 35

    Mdx-596 mdx-596 34 no. Port i/o name 40 p56/ale i/o 41 p55//hold i flash_gnd 42 p54//hlda o powerdown 43 p53/bclk i/o 44 p52//rd i/o 45 p51//wrh,/bhe i/o 46 p50//wrl,/wr i flash_vcc 47 p47//cs3 i/o 48 p46//cs2 i/o 49 p45//cs1 i int 50 p44//cs0 i md-load 51 p43/a19 i/o 52 p42/a18 i/o 53 p41/a17 i/o 5...

  • Page 36

    Mdx-596 mdx-596 35 ■ block diagram (md) 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 d gnd d gnd reset md-st dsck kdata mddata dstb d gnd d gnd dvdd dvdd pconto loadsw avcc l out aa gnd r out serch ad gnd r in aa gnd l in dig out d gnd dig in backup p down backup 70 34 ...

  • Page 37

    A b c d e f g h 1 2 3 4 5 6 mdx-596 ■ block diagram e-37/j-35 ic6 cpu m30622m8-xxxfp display drive ic601 mute control q8,d3,4,6 display v601 q4 q6 q5 q7 phones in power sw sw401 l302 fl1 fl2 d15 l r md (mdm-07a) ic201 ic5 ic4 q w e r t y u i o !0 !1 !2 !3 !4 !5 !6 q1 d1,2 !7 !8 !9 @0 @1 @2 @3 @4 @5 ...

  • Page 38

    A b c d e f g h 1 2 3 4 5 6 mdx-596 ■ test point waveform e-38/j-36 power on toc read(low reflection disc) toc read(low reflection disc) toc read(low reflection disc) play(low reflection disc) play(low reflection disc) toc read(high reflection disc) toc read(high reflection disc) toc read(high refle...

  • Page 39

    A b c d e f g h 1 2 3 4 5 6 mdx-596 ■ printed circuit board q to #3 : test point waveforms (see page e38/j36) e-41/j-39 c1616 xl1201 ic1101 cn1101 ic1202 ic1201 ic1601 cn1401 ic1701 ic1401 c1706 c1707 q1701 r1708 r1516 r1513 q1805 q1700 r1705 c1304 c1302 r1612 ic1702 c1702 l1701 d1401 r1801 ic1300 c...

  • Page 40

    A b c d e f g h 1 2 3 4 5 6 mdx-596 point q (pin 13 of ic6) v : 2v/div h : 20 µ sec/div dc range 1 : 1 probe point w ch1 : emitter of q2 ch2 : collector of q14 v : 2v/div ch1 v : 2v/div ch2 h : 5 sec/div dc range 1 : 1 probe 0v ch 2 ch 1 ac cord on ac cord off ■ printed circuit board (foil side) e-4...

  • Page 41

    A b c d e f g h 1 2 3 4 5 6 mdx-596 ■ printed circuit board (foil side) e-45/j-43 fl2 fl1 ac 2 gnd ac 1 l301 w301 #8 to : main(1) w302 #401 to : main(4) main (3) p.C.B. From : power cord wh be to : main (7) bl ye br or re r only fr om : main(3) main (4) p.C.B. Power ye br bl or re to : main (3) main...

  • Page 42

    ■ printed circuit board a b c d e f g h 1 2 3 4 5 6 mdx-595 e-46/j-44 cn1932 sw1936 lead in md mechanism switch pwb-e1 m901 md spindle motor m902 md sled motor or bl 1 6 cn1402 to md main pwb cw1932 bk rd tp1975 sw1931 disc media sw1930 write pro r1931 r1930 r1933 r1932 cn1931 sw1932 loading sw1934 ...

  • Page 43

    A b c d e f g h 1 2 3 4 5 6 i j k 7 8 ndx-596 ■ schematic diagram 1 2 3 4 5 6 7 10 16 30 17 18 19 22 23 24 25 21 27 28 31 29 20 26 32 33 14 15 12 13 tp1630 tp1303 tp1130 tp1415 tp1213 tp1136 tp1422 tp1421 tp1420 tp1451 tp1402 tp1403 tp1406 tp1407 tp1408 tp1410 tp1413 tp1412 tp1411 tp1404 tp1401 tp14...

  • Page 44

    A b c d e f g h 1 2 3 4 5 6 i j k l 7 8 mdx-596 * all voltages are measured with a 10m Ω /dc electric volt meter. * components having special characteristics are marked z and must be replaced with parts having specifications equal to those originally installed. * schematic diagram is subject to chan...

  • Page 45

    A b c d e f g h 1 2 3 4 5 6 i j k 7 8 ndx-596 * all voltages are measured with a 10m Ω /dc electric volt meter. * components having special characteristics are marked z and must be replaced with parts having specifications equal to those originally installed. * schematic diagram is subject to change...

  • Page 46: Remote Control Transmitter

    A b c d e 1 2 3 4 5 6 7 mdx-596 51 ■ schematic diagram remote control transmitter r1 2.2 Ω ki/o8 ki/o7 so rem vdd xout xin vss ki/o5 ki/o4 ki/o3 ki/o2 ki/o1 ki/o0 ki3 ki2 ki1 ki0 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 ic1 µ pd6133gs–459 c1 c2 c3 47 µ f x1 455khz 3(v) q1 ied1 220pf 220pf ...

  • Page 47: Parts List

    Mdx-596 mdx-596 52 abbreviations in this list are as follows : c.A.El.Chp : chip alumi. Electrolytic cap c.Ce : ceramic cap c.Ce.Array : ceramic cap array c.Ce.Chp : chip ceramic cap c.Ce.Ml : multilayer ceramic cap c.Ce.M.Chp : chip multilayer ceramic cap c.Ce.Safty : recognized ceramic cap c.Ce.Tu...

  • Page 48

    Mdx-596 mdx-596 schm ref. Part no. Description new parts * schm ref. Part no. Description new parts * 53 p.C.B. Main * v5731000 p.C.B. Main(r) * v5731100 p.C.B. Main(a) * v5731200 p.C.B. Main(bg) cb1 v3733000 cn 28p cb2 vt707200 l.Emit totx178 cb3 vt620100 l.Dtct torx178a cb4 vt620100 l.Dtct torx178...

  • Page 49

    Mdx-596 mdx-596 schm ref. Part no. Description new parts * schm ref. Part no. Description new parts * 54 p.C.B. Main * d5 vg437600 diode.Zenr mtzj5.6a 5.6v * d6 vg436500 diode.Zenr mtzj3.9a 3.9v z d7 vu264100 diode 1sr139-400 z d8 vu264100 diode 1sr139-400 z d9 vu264100 diode 1sr139-400 z d10 vu2641...

  • Page 50

    Mdx-596 mdx-596 55 p.C.B. Md main schm ref. Part no. Description remarks schm ref. Part no. Description remarks * new parts * new parts p.C.B. Md main c1100 aax02530 c.Chp 4.7uf 10v rckz0003awzz c1107 aax02650 c.Chp 0.033uf 16v vckycy1cb333k c1110 aax02750 c.Chp 1uf 6.3v vckytv0jb105k c1111 aax02780...

  • Page 51

    Mdx-596 mdx-596 56 p.C.B. Md main schm ref. Part no. Description remarks * new parts schm ref. Part no. Description remarks * new parts * ic1201 aax17310 ic lr37814 vhilr37814/1 ic1202 aax02150 ic ix2474af rhix2474afzz * ic1300 aax17270 ic 74act02t vhi74act02t1 * ic1301 aax17290 ic ftd2005 vhiftd200...

  • Page 52

    Mdx-596 mdx-596 57 p.C.B. Md main chip resistors schm ref. Part no. Description remarks * new parts schm ref. Part no. Description remarks * new parts r1463 aax01760 r.Car.Chp 10k Ω 1/16w vrscy1jb103j r1510 aax01750 r.Car.Chp 1k Ω 1/16w vrscy1jb102j r1511 aax03050 r.Car.Chp 8.2k Ω 1/16w vrscy1jb822j...

  • Page 53

    A b c d e 1 2 3 4 5 6 7 mdx-596 ■ exploded view 58 25 1-32 44 48 48 28 26 200 45 2 2 (5) 49 24 49 47 9 22 41 43 41 12 43 43 45 43 43 43 21 2 (7) 29 2 (1) 46 30 23 45 27 42 2 (3) 11 47 2 (4) 25 2 (2) 1-11 1-24 1-32 1-22 1-23 1-31 1-32 1-26 1-12 1-15 1-32 1-32 1-5 1-32 1-16 200-1 1-17 1-13 1-21 1-32 1...

  • Page 54

    Mdx-596 mdx-596 ■ mechanical parts ref. No. Part no. Description remarks markets new parts * 59 1-5 mf119200 flexible flat cable 19p 200mm * 1-11 v5235500 front panel bl * 1-11 v5235600 front panel ti * 1-12 v3080600 panel, sub bl * 1-12 v3080700 panel, sub ti 1-13 v3082300 spring 1-15 v3081800 supp...

  • Page 55

    A b c d e 1 2 3 4 5 6 7 mdx-596 60 ■ exploded view (md recorder unit) 7 4 12 5 2 sw1934 sw1933 sw1932 sw1931 sw1930 17 9 m903 3 pwb-e1 sw1936 m902 504 34 27 28 14 15 503 35 m901 507 501x2 24 507 511 pwb-e2 16 19 20 21 18 10 8 22 506 506x2 505x3 506 513 512x2 512 pwb-c 33x2 33x2 510x2 502 509 32 30 5...

  • Page 56

    Mdx-596 mdx-596 ref. No. Part no. Description remarks markets new parts * 61 ■ mechanical parts (md recorder unit) v5063300 md recorder unit v5063300 * 2 aax16830 ld base lchsm0089awzz * 3 aax16840 md base lchsm0090awzz * 4 aax16860 cartridge holder assy lhldx3007awm1 * 5 aax16980 slider lever assy ...

  • Page 57: Grease Application Diagram

    A b c d e 1 2 3 4 5 6 7 mdx-596 62 grease application diagram grease g : molykote pg-662 o : hydro-flute ep-68 7 4 5 2 9 3 m902 27 21 18 10 22 g g g g g g g g g g o g.

  • Page 58

    Parts list for carbon resistors 1/6w type part no. Hf45 7100 hf45 7110 hf85 7120 hf45 7130 hf45 7150 hf45 7180 hf45 7220 hf45 7240 hf85 7270 hf45 7300 hf45 7330 hf45 7360 hf45 7390 hf45 7470 hf45 7510 hf45 7560 hf45 7620 hf45 7680 hf45 7820 hf45 7910 hf45 8100 hf45 8110 hf45 8120 hf45 8150 hf45 8180...

  • Page 59: Mdx-596

    Mdx-596 mdx-596.