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NAD C 542 Service Manual

Other manuals for C 542: Catalog, Owner's Manual, Owner's Manual
Manual is about: NAD Compact Disc Player Owner's Manual C 542

Summary of C 542

  • Page 1

    Nad c 542 c o m pa c t disc player c 542 comp act disc pla yer ser vice manual.

  • Page 2: Safety Information

    - 2 - catuion hgkjdhsgkjhgsjk advarsel hgkjdhsgkjhgs kbvnclknbcvlknlknvlkncvncl vk jk advarsel hgklfh;l;hjmnmd hfkljhjldkljlkdjlkfhjhsgmmkjhgsjk varing hgkjdhsgkjhgklg djh klhkfg;lkng;lkjgf;lkjgf;lkjfl;sjk varo! Hgkjd hsgkjhjbjkbkjbjkgs kbvn clknb cvlknlkn vlknc vncl vk jk vorsict! Hgklfh;l;h hbh hj...

  • Page 3: Service Safety Precautions

    - 3 - service safety precautions 1. Replacing the fuses caution: for continued protection against the risk of fire replace only with same type of fuse. Reference no part number description m507 *ah 5120-0052-0 fuse t1.6a 250v 5x20mm m507 *c 5120-0050-0 fuse t1.6a 250v 5x20mm m512, m513 *ah 5120-0020...

  • Page 4: Specifications

    - 4 - specifications disc capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One disc, 120 or 80 mm decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Burr-brown delta sigma 24bit digital filter . . . . . . . . . . . . . . . . . . . ....

  • Page 5: Rear Panel / Front Panel

    - 5 - digital optical out digital optical out digital out digital out trigger switch trigger switch ir in in off off auto auto nad link out in ' 2003 nad c 542 4 5 6 7 1. Line out 2. Digital optical & coaxial output 3 nad link in / out 4. Ir input 5. Trigger in 6. Trigger switch 7. Ac line cord 1. P...

  • Page 6: Disassembly Instructions

    - 6 - disassembly instructions 1. Remove machine screws m 4.0 x 6.0 ( 1 to 4 ) from the side panels. Remove tapping screw 3.0 x 8.5 ( 5 )from the back panel. Refer to figure no.1 . Figure no.1 2. Pull both sides of the top cover slightly outwards 6 and tilt approx. 35˚ and then remove in the directi...

  • Page 7: Block Diagram

    - 7 - block diagram u301 m38b59ef system control cpu & vfl display driver q401- q403 mute circuit q301-q304 mute m313 rca jack q307 m313 ir_in m318 rca jack digital output u402 nad link micro- controller u403 74hc00 nand gate nad link in m501 vfl display m314 trigger switch m315 trigger in nad link ...

  • Page 8: Wiring Diagram

    - 8 - wiring diagram m102 (16pin) m301a m505a m506a m120a m105a (6pin) cd mechanism live board displa y board key board main board led board m101 (5pin) brown black neutral live red m502 transformer.

  • Page 9: Rf Pattern Testing

    - 9 - rf pattern testing nad - c 542 pcb testing points diagram testing procedure (1) load the test disc (sony test cd yeds-7) and set the unit into play mode. (2) connect the scope to r227 (pin 15 of u101) and dgnd (j144). Scope setting: coupling : ac. Vertical sensitivity : 0.2 v/ div. Horizontal ...

  • Page 10: Important Notes

    - 10 - important notes instruction for handling optical system block pick-up electrostatic breakdown of the laser diode in the optical system block may occur due to a potential difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground must be provided as follows to...

  • Page 11

    - 11 - precautions when changing laser pick-up when removing the pick-up assembly, short circuit the pcb tracks on the optical block as show in the drawing in order to protect the pick-up before removal. Note : replacement pick-up assemblies are supplied with the pcb pattern already protected. Do no...

  • Page 12: Pcb Layout

    - 12 - pcb layout display board key board live board led board.

  • Page 13

    - 13 - main board.

  • Page 14

    - 14 - l302 10uh vcc r308 3k r309 3k x301 4.00m unld load xrst xlat clok data scor sysm rw/rom/ldoff rw/rom/ldoff sclk sqck 1/2x cd/cdr disco di/sw r331 4k 7 r332 1k r333 4k 7 r328 4k7 r327 4k 7 r334 4k 7 sqso sens c301 33p c302 33p c303 0.01u 1 2 3 q311 8050 d303 in4148 r312 10k r311 100k c308 10u/...

  • Page 15

    Sl+ 1 sl- 2 rcin1 3 srdr 4 sfdr 5 vrefi 6 vrefo 7 gnd 8 frdr 9 ffdr 10 rcin2 11 fcs+ 12 fcs- 13 gnd1 14 mute 15 trk+ 16 trk- 17 rcin3 18 tfdr 19 trdr 20 vcc 21 vcc1 22 vbin 23 spdr 24 vbin1 25 sp- 26 sp+ 27 gnd2 28 gnd 29 gnd 30 u202 ba6392 sqso 1 sqck 2 xrst 3 sysm 4 data 5 xlat 6 clok 7 sens 8 scl...

  • Page 16

    - 16 - vc 1 vdd 2 e 3 d 4 a 5 b 6 c 7 f 8 gnd 9 ld 10 vr 11 pd 12 fcs+ 13 trk+ 14 trk- 15 fcs- 16 m102 16pin ld 1 pd 2 eq_in 3 ac_sum 4 gnd 5 a 6 b 7 c 8 d 9 e 10 f 11 sw 12 dvcc 13 dvc 14 rfac 15 fe 16 fei 17 te 18 te_bal 19 ce 20 cei 21 vcc 22 rfg 23 bst 24 vfc 25 rfc 26 vc 27 rfdco 28 rfdci 29 dc...

  • Page 17

    - 17 - lrck pcmd bck clko m302a 16.9344mhz c328 20p c329 20p dgnd dgnd c320 10u/16v agnd c324 10u/16v agnd c376 100u/16v c378 224k r362 4k7 r360 15.2k c353 100p r396 4k7 a-12v agnd r364 1k5 r368 2k2 r372 2k2 c357 2700p c363 4700p c367 680p r376 75r r374 100k r380 75r 1 2 m317a l q302 2sd655f q304 2s...

  • Page 18

    - 18 - 1 2 3 4 5 6 7 8 9 10 11 m502 transformer toroid m507 t1.6a 250v m514 t315ma 250v m512 t1a 250v m513 t1a 250v j800 120v j801 230v ac1 cordest 1 2 3 4 m810 tln120a150w3r0 m802 power_sw c800 4700p ferrite ring only in c version d514 in4001 d516 in4001 c543 104k c541 104k c501 104k d515 1n4001 d5...

  • Page 19: Ic Block Diagram

    - 19 - main board u101: cxa2581n ic block diagram ac sum ac vca eq_on/off vc d vcc r w/r om r w/r om r w/r om r w/r om r w/r om r w/r om r w/r om vc vc vc dv c dv c v ofst v ofst b c a d v ofst eq apc 23 rfg 24 bst 26 rfc 25 vfc 14 dvc 27 vc 5 gnd 22 vcc 1 ld 2 pd 12 sw 11 e 10 f 9 d 8 c 7 b 6 a 15 ...

  • Page 20

    - 20 - main board u201: cxd3017q clock generator efm demodurator error corrector 16k ram digital out d/a interface serial-in interface over sampling digital filter pwm pwm timing logic 3rd-order noise shaper sub code processor servo auto sequencer servo interface servo block dac block signal process...

  • Page 21

    - 21 - port p5(8) 8 port p6(6) 6 port p7(8) 8 port p8(8) ram 8 port p9(2) 2 port p0(8) a-d converter (10-bit x 12 channel) serial i/o serial i/o1(clock-synchronized) (256 byte automatic transfer) serial i/o2 (clock-synchronized or uart) timers timer x(16-bit) timer 1(8-bit) timer 2(8-bit) timer 3(8-...

  • Page 22

    Input port 3 counter timers (2) interrupt control two analog comparators port 2 i/o (bit programmabel) 1 p24 p25 p26 p27 p28 xtal 2 xtal 1 p31 p32 p23 p22 p21 p20 gnd p02 p01 p00 p33 18 9 10 i/o vcc alu otp program counter machine timing & inst. Control flag flegister pointer general-purpose registe...

  • Page 23: Troubleshooting Guide

    - 23 - troubleshooting guide set power switch to on. Is power turned on ? Check fuses m507, m512-m514 open ? M507,m512-m514 defective crystal x301 defective. Microprocessor ic u401 defective. Motor drive transistor q104, q105, q106, q107 defective. Can tray be opened ? Can tray be closed ? Does init...

  • Page 24: Electrical Parts List

    - 24 - disp assy pc board pcb-n0a70c-disp pcb assy disp n0a70c wire m505a 7009-9620-0 conn wire assy 12p 100mm m506a 7010-2224-0 conn wire assy awg28 pc board 1725-711a-0000 pcb key n0a7xc c542 miscellaneous 0017 4134-8701-0 holder, vfd corner 0024 4152-4841-1 black cushion (el/lcd) led1 3700-5810-r...

  • Page 25

    - 25 - led d304 3700-3517-rg led red/green (l-469hgw) wire m301a 7703-1280-2004 conn.Assy 3p p2.5 l=280 pc board 1725-201b-0100 pcb main n0a70c c542 live assy pc board *ah pcb-n0a70c-live pcb assy live n0a70c *ce pcb-n0a71c-live pcb assy live n0a71c switch m802 5200-3151-0-01 power switch pc board 1...

  • Page 26

    - 26 - c218 150f-101k-2-fc cc 50v 100pf 10% at 3.5x2 c219,c220 150f-474m-5-ii cc 50v 0.47µf 20% rl 5x5 c226 157f-334m-5-gmk ce 50v 0.33µf 20% rl 4x7 c229 157d-477m-5-ovk ce 16v 470µf 20% rl 8x11.5 c303,c370 153f-103j-5-im cm 50v 0.01µf 5% rl 5x7 c305 157d-227m-5-omk ce 16v 220µf 20% rl 8x7 c306,c514...

  • Page 27

    - 27 - m301b 2102-031s-004 3 pin st. Wafer m502 2101-1811-0 8p pin connector p=3.96 m505b 2102-121s-004 12p st.Wafer m506b 2102-161s-004 16p st wafer p=2.5 jack m313,m315 2113-1743-0 mono jack htj-035-12e m317 2113-1300-0 2p rca jack w/r au m318 2113-1170-0 1p rca jack yl au m319 2113-1121-0 2p rca ...

  • Page 28

    - 28 - r105,r110,r30-r310 4711-302a-2 rmf 1/8w 3k 1% at r106 4711-154a-2 rmf 1/8w 150k 1% at r107,r212,r220,r225,r311, 4711-104a-2 rmf 100k 1/8w 1% at r373,r374,r410,r414 r108 4711-683a-2 rmf 1/8w 68k 1% at r109,r119,r218,r219,r322 4711-153a-2 rmf 1/8w 15k 1% at r112,r113,r114 4711-512a-2 rmf 1/8w 5...

  • Page 29

    - 29 - transistor q101,q104,q105 4860-0060-5 tr ss8550 c/d samsung rl q103,q106,q107,q307-q312 4860-0050-5 tr ss8050 c/d samsung rl q301-q304 4860-1780-5 tr 2sd655f hfe:600-1200 q401,q403 4860-0660-5 tr 2sa1015 (g.R.) rl q402 4851-012f-5 tr 2sd1012f/g hfe q404 485a-114e-5 tr dta114esa rohm q405 485c...

  • Page 30: Mechanism Exploded View

    - 30 - mechanism exploded view 27 11 3 15 28 29 22 10 1 9 24 (x2) 21 (x4) (x2) (x4) 23 30 31 (x2) 8 26 26 5 12 17 16 6 25 (x2) (x2) 14 32 20 13 25 19 18 (x2) 2 7 4 wsl-2130ccm.

  • Page 31

    - 31 - 1 4102-9000-0 outside main chassis 1 2 4102-9001-0 tray 1 3 4102-9002-0 subchassis 1 4 4102-9003-0 chucking plate 1 5 4102-9004-0 drive gear 1 6 4102-9005-0 control cam 1 7 4102-9006-0 chucking pulley 1 8 4102-9007-0 gear cover 1 9 4102-9008-0 tray gear 1 10 4102-9009-0 intermediate gear 1 11...

  • Page 32: Exploded View

    - 32 - exploded view m500

  • Page 33: Exploded View Parts List

    - 33 - 0001 *ah grey/*ce grey 1466-5103-0 fascia black (c542) 0001 *ah ti/*ce ti 1466-5104-1 fascia silver (c542) 0002 1402-3783-2 strap (c542) 0003 *ah grey/*ah ti 1402-3526-1 chassis c542(ah) 0003 *ce grey/*ce ti 1402-3527-1 chassis c542(c) 0005 *ah grey/*ce grey 1402-3531-0 top cover black (c542)...

  • Page 34

    - 34 - note: - the components identified by mark are critical for risk of fire and electrical shock. Replace only with part number specified. - : usa, canadian model only. - : european model only. 0211 2904-3006-0000 screw m3x6 0213 2954-3008-3000 t3x8mm self tapping 0216 2954-3008-0000 tapping 3x8m...

  • Page 35: Packing Diagram

    - 35 - packing diagram item part no. Description q’ty 1. 1435-8401-0-2 carton box c542 1 2. 1490-3783-2 polyform endcap 2 3. 1497-1062-0 polybag manual 1 4. 1497-1302-0 polybag 1 5. 1497-1332-1 polybag 1 6. 1497-1432-0 epe bag (412) 1 7. 4301-7073-0 instruction manual 1 8. 2103-7302-1 rca plug (male...

  • Page 36: Ser

    Ser vice manual © nad 2003 c 542 comp act disc pla yer nad electronics international toronto.