1. DL manuals
  2. NAD
  3. Receiver
  4. C 525BEE
  5. Service Manual

NAD C 525BEE Service Manual

Other manuals for C 525BEE: Catalog, Owner's Manual
Manual is about: NAD Electronics International Owner's Manual Compact Disc Player C 525BEE

Summary of C 525BEE

  • Page 1

    Nad c 525bee compact disc player c 525bee comp act disc pla yer se rv ic e m a n u a l.

  • Page 2: Safety Information

    - 2 - - 3 - safety information caution this device complies with part 15 of the fcc rules. Operation is subject to the following two conditions:- (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undes...

  • Page 3: Service Safety Precautions

    - 2 - - 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 m502-m504 *ca 5120-0020+0 fu t1a 250v ul/csa 5x20mm m502-m504 *eu 5120-0018+0 fu t1a 250v semko/ude 5x20m...

  • Page 4: Specifications

    - 4 - - 5 - specifications disc capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One disc, 120 or 80 mm decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Burr-brown delta sigma 20bit digital filter . . . . . . . . . . . . . ....

  • Page 5: Rear Panel / Front Panel

    - 4 - - 5 - © 2006 nad c525bee 1. Line out 2. Digital out 3. Ac line cord 1. Power on / off 2. Disc drawer 3. Display 4. Open 5. Play / pause 6. Time 7. Stop 8. Repeat 9. Random 10. Scan back ( ) / forward ( ) 11. Skip back ( ) / forward ( ) 12. Standby led © 2006 nad c525bee rear panel / front pane...

  • Page 6: Disassembly Instructions

    - 6 - - 7 - 7 6 6 5 4 3 1 2 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 ...

  • Page 7: Block Diagram

    - 6 - - 7 - block diagram u401 m38223e4hp4 system control cp u & lcd display drive r q401- q405 mute circuit q301-q304 mute m317 rca jack u302 pmc1710 m318 rca jack digital output m501* lcd display 8 7 27 22 2 1 3 51 78 35 1 2 16 13 3 61 62 63 51 43 39 40 46 45 38 24 12 9 2 4 3 6 60 l r l r cd audio...

  • Page 8: Wiring Diagram

    - 8 - - 9 - wiring diagram 115v:j401,j404 230 v:j 403 l401 j40 3 j4 06 j4 07 j4 02 j40 4 j401 172 3-0 06a +00 00 8v 0v 0v 8v 15v 0v 15v issue b m120c m505b m301 live neutral m500a m102 (16pin) m105 (6pin) m505a cd mechanism transformer board displa y board led board key board live board m101 (5pin) ...

  • Page 9: Rf Pattern Testing

    - 8 - - 9 - rf pattern testing nad - c 525bee 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. Ho...

  • Page 10: Important Notes

    - 10 - - 11 - 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 fol...

  • Page 11

    - 10 - - 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....

  • Page 12: Pcb Layout

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

  • Page 13

    - 13 - main board.

  • Page 14

    - 14 - - 15 - schematic diagram display sl + 1 sl - 2 rc in 1 3 sr dr 4 sf dr 5 vr ef i 6 vr ef o 7 gn d 8 fr dr 9 ff dr 10 rc in 2 11 fc s+ 12 fc s- 13 gn d1 14 m ut e 15 tr k+ 16 tr k- 17 rc in 3 18 tf dr 19 tr dr 20 vc c 21 vc c1 22 vb in 23 sp dr 24 vb in 1 25 sp - 26 sp + 27 gn d2 28 gn d 29 gn...

  • Page 15

    - 14 - - 15 - mcu p6 7/ a n 7 1 p6 6/ a n 6 2 p6 5/ a n 5 3 p6 4/ a n 4 4 p6 3/ a n 3 5 p6 2/ a n 2 6 p6 1/ a n 1 7 p6 0/ a n 0 8 p5 7/ a d t 9 p5 6/ t o u t 10 p5 5/ c n t r 1 11 p5 4/ c n t r 0 12 p5 3/ r t p1 13 p5 2/ r t p0 14 p5 1/ in t 3 15 p5 0/ in t 2 16 p4 7/ sr d d y 17 p4 6/ sc l k 18 p4 ...

  • Page 16

    - 16 - - 17 - v c 1 v c c 2 e 3 d 4 a 5 b 6 c 7 f 8 g n d 9 l d 10 v r 11 p d 12 f c s + 13 t r k + 14 t r k - 15 f c s - 16 m 10 2 16 pi n l d 1 p d 2 e q _i n 3 a c _s u m 4 g n d 5 a 6 b 7 c 8 d 9 e 10 f 11 s w 12 d v c c 13 d v c 14 r fa c 15 f e 16 fei 17 t e 18 t e _b a l 19 c e 20 c e i 21 v ...

  • Page 17

    - 16 - - 17 - l r sy r o m x a c k 2 c l k o a 16 .9 34 4m h z c 32 8 20 p c 32 9 20 p d g n d d g n d c 32 0 10 u/ 6. 3v a g n d c 33 2 10 u/ 6. 3v c 37 6 22 u/ 25 v c 37 8 22 4k r 35 6 6k 8 r 36 0 6k 8 c 35 3 33 0p r 36 4 1k 5 r 36 8 2k 2 r 37 2 2k 2 c 35 7 27 00 p( m ) c 36 3 47 00 p( m ) c 36 7 ...

  • Page 18

    - 18 - - 19 - 10 1 2 3 4 5 6 7 8 9 m 50 0 1 2 3 4 m 81 0 t l n 12 0a 15 0w 3r 0 a c 1 a c c o r d e s t f e r r it e r in g * o n l y i n c v e r s io n m802 power_sw c800 4700p j8 00 23 0v j8 01 12 0v d 51 4 in 40 01 d 51 6 in 40 01 c 54 3 10 4k c 54 1 10 4k c 50 1 10 4k d 51 5 1n 40 01 d 51 7 1n...

  • Page 19: Ic Block Diagram

    - 18 - - 19 - ac sum ac vca eq_on/off vc dvcc rw/r om rw/r om rw/r om rw/r om rw/r om rw/r om rw/r om vc vc vc dv c dv c vofst vofst b c a d vofst 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 rf ac 30 dc_ofst 29 rfdci 28 rfdco 17 fei 16 fe...

  • Page 20

    - 20 - - 21 - main board u301: 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 ...

  • Page 21

    - 20 - - 21 - input interface timing control digital filter mode control noise shaper 5-level dac left low pass filter left cmos amp left 5-level dac right low pass filter right cmos amp right 1 2 3 4 6 8 10 12 5 7 9 11 13 14 lrcin din bckin clko xti xto dgnd vdd vcc2r agnd2r ext1r ext2r voutr agnd1...

  • Page 22

    - 22 - - 23 - a1 b1 y1 a2 b2 y2 gnd vcc b4 a4 y4 b3 a3 y3 1 2 3 4 5 6 7 14 13 12 11 10 9 8 main board u403: tc74hc00ap v0 gnd v1 main board u503: upc79m12hf amplifier 1 output inverting input non-inverting input v – amplifier 2 v + output inverting input non-inverting input 1 2 3 4 8 7 6 5 + – – + m...

  • Page 23: Troubleshooting Guide

    - 22 - - 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 ? Do...

  • Page 24: Electrical Parts List

    - 24 - - 25 - electrical parts list live assy pc board *eu titanium/grey pcb-c521b27+live pcb assy live c521beec *ca titanium/grey pcb-c521bd7+live pcb assy live c521bee capacitors c800 8910-0049+0 cap400v 4700p switch m802 5200-3151+0-01 power switch pc board 1725-221b+0100 pcb main n0a60c c521 bee...

  • Page 25

    - 24 - - 25 - miscellaneous j406, j407 4132-1071+0 terminal pin display assy pc board pcb-c521bd7+disp pcb assy display c521bee wire m509a 7010-1300+1 cn assy shield 2p p2.5 pc board 1725-221b+0100 pcb main n0a60c c521 bee wire m505a, m505b 7009-9630+1 conn wire assy 14p 100mm miscellaneous 0011 413...

  • Page 26

    - 26 - - 27 - wire m120c 7012-6347+0 connector wire assy pc board 1725-211b+0000 pcb key n0a60c led assy pc board pcb-c521bd7+led pcb assy led c521bee led d304 3700-3517+rg led red/green (l-469hgw) pc board 1725-221b+0100 pcb main n0a60c c521 bee wire m301b 7012-7300+0 wire-conn 3p p2.5 #26 main ass...

  • Page 27

    - 26 - - 27 - c216 150f-103k+2-fc cc 50v 0.01uf 10% at 3.5 c217 150f-104k+2-fc cc 50v 0.1uf 10% at c218 150f-101k+2-fc cc 50v 100pf 10% at 3.5x c219, c220 150f-474m+5-ii cc 50v 0.47uf 20% rl 5x5 c221 150f-392k+2-gd cc 50v 0.0039uf 10% at c222 150f-104k+2-fc cc 50v 0.1uf 10% at c223 153f-152j+5-jm cm...

  • Page 28

    - 28 - - 29 - c386 150f-104k+2-fc cc 50v 0.1uf 10% at c387 150f-103k+2-fc cc 50v 0.01uf 10% at 3.5 c390, c391 157d-477m+k-ovi ce 16v 470uf 20% rlt c407 157d-228m+5-x=i ce 16v 2200uf 20% rl c417 150f-104k+5-ii cc 50v 0.1uf 10% rl 5x5 c418 157e-106m+5-iu ce 25v 10uf 20% rl 5x11 c501, c502, c503, c504,...

  • Page 29

    - 28 - - 29 - m500a 2102-071s+004 wf t8 de 7pin coulomb m505a, m505b 2102-141s+004 14p st. Wafer p=2.5 m509 2102-021s+004 2p st.Wafer m509a 2102-022s+008 wafer 2pin pitch=2.54mm jacks/sockets m317 2113-1300+0 2p rca jack w/r au m318 2113-1170+0 1p rca jack yl au coils l201 1801-270k+m coil 27 uh,10%...

  • Page 30

    - 30 - - 31 - r107 4701-104j+2 rcf 1/8w 100k 5% at r108 4701-683j+2 rcf 1/8w 68k 5% at r109 4711-153a+2 rmf 1/8w 15k 1% at r110 4701-302j+2 rcf 1/8w 3k 5% at r111 4701-472j+2 rcf 1/8w 4.7k 5% at r112, r113, r114 4701-512j+2 rcf 1/8w 5.1k 5% at r115 4701-182j+2 rcf 1/8w 1.8k 5% at r116, r117 4701-123...

  • Page 31

    - 30 - - 31 - r340 4701-100j+2 rcf 1/8w 10r 5% at r341 4701-561j+2 rcf 1/8w 560r 5% at r346 4701-103j+2 rcf 1/8w 10k 5% at r347 4701-102j+2 rcf 1/8w 1k 5% at r353 4711-122a+2 rmf 1/8w 1.2k 1% at r354 4701-271j+2 rcf 1/8w 270r 5% at r355, r356 4711-682a+2 rmf 1/8w 6.8k 1% at r357 4701-271j+2 rcf 1/8w...

  • Page 32

    - 32 - - 33 - u305, u306 3130-9340+0 ic opa2604 opamp dip8 u403 3130-4160+0 ic tc74hc00ap(f/m) u501 3130-2020+3 ic mc7805ctg reg 5v 1.5a u502 3130-2520+2 ic njm7812fa-#zzzb u503 3130-3800+0 ic njm7912fa-#zzzb u504 3130-9030+0 ic regulator njm78l09l2a u506 3130-2020+3 ic mc7805ctg reg 5v 1.5a u507 31...

  • Page 33

    - 32 - - 33 - note: - the components identified by mark are critical for risk of fire and electrical shock. Replace only with part number specified. - : canadian model only. - : european model only. - capacitors : cp-polystyrene, cm-mylar, ce-electrolytic, cc-ceramic, ctc-npo. - resistors : rmf-meta...

  • Page 34: Mechanism Exploded View

    - 34 - - 35 - 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 35

    - 34 - - 35 - item part no. Description qty 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 ...

  • Page 36: Exploded View

    - 36 - - 37 - exploded view 0006 0205 0001 0204 0008 0010 0216 0019 0228 0227 0013 0210 u506 0226 u503 0225 m317 u501 u507 0003 0014 0101 m501 0219 0012 0219 0005 0201 0202 0219 0219 0213 0206 021 1 0018 0208 0207 0225 0304 0002 0218 0209 0020 0223 0224 0226 0007.

  • Page 37: Exploded View Parts List

    - 36 - - 37 - exploded view parts list item part no. Description 0001 *eu grey / *ca grey 1466-510a+2 fascia black nacdc525b 0001 *eu titanium / *ca titanium 1466-510b+2 fascia silver nacdc525b 0002 1402-3783+2 strap (c542) 0003 *eu titanium/grey 1402-352i+1 chassis-rear c nacdc525b 0003 *ca titaniu...

  • Page 38

    - 38 - - 39 - note: - the components identified by mark are critical for risk of fire and electrical shock. Replace only with part number specified. - : canadian model only. - : european model only. 0217 2842-3367+0 metal washer 0218 2954-3006+0000 3x6mm b-tite (yel.Zn) 0219 2904-3006+3000 screw m3x...

  • Page 39: Packing Diagram

    - 38 - - 39 - packing diagram 1 2 9 10 4 8 3 5 7 11 2 6 item part no. Description q’ty 1. 1435-8302+0-2 carton box c525bee 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. 4301-7231+0 instruction ma...

  • Page 40: Vic

    Se r vic e m a n u a l © nad 2006 c 525bee comp act disc pla yer nad electronics international toronto.