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NAD C275BEE C/AH Service Manual

Other manuals for C275BEE C/AH: Datasheet, Owner's Manual, Owner's Manual

Summary of C275BEE C/AH

  • Page 1

    La u na m e ci vr es la u na m e ci vr es c275bee c/ah $%, / - #"%% , ! 5 . ! - % #) 6 2% 3 © nad 2010 nad electronics international toronto c275bee h a/ c stereo amplifier c275bee h a/ c stereo amplifier stereo amplifier.

  • Page 2: Contents

    Contents front panel/rear panel view 3 specifications 4 alignment procedure/alignment points 5 wiring diagram 6 schematic diagram 7-12 pcb layout 13-18 electrical parts list 19-32 exploded view 33 exploded view parts list 34 packing diagram 35 service safety precautions 1. Replacing the fuses cautio...

  • Page 3

    45"/%#: #6550/ 45"/%#: -&% #3*%(& .0%& */%*$"503 40'5 $-*11*/( */%*$"503 '30/51"/&-3&"31"/&-7*&8 */1654&-&$5 */165 */165 -&7&- $0/530- #3*%(& .0%& 40'5 $-*11*/(™ 7 53*((&3 */*/1654&/4&0''"650 7 53*((&3 */165 '64& )0-%&3 41&",&34 " # "$ ."*/4*/165 108&348*5$) '30/5 1"/&-$0/530-4 3&"3 1"/&-$0/530-4 - ...

  • Page 4: Specifications

    Fixed in, speaker out continuous average power , stereo,8 and 4 ohms at rated thd ,20-20k > 150w continuous average power 8 ohms , bridge mode > 330w rated thd, 20-20k, smpte and ccif imd, dim 100 clipping power ( 1% thd at 1khz) >170w ihf dynamic power 8 ohms >250w ihf dynamic power 4 ohms >410w ih...

  • Page 5

    A. Dc offset voltage the dc offset between offset test point and agnd must be within 0+/-20mv. B. Idling current the idling current in the output stage of the poweramp should be set to 30ma+/-5ma per pnp-npn transistor pair (this means the mid point voltage is 6.6mv with down limit of 5.5mv and up l...

  • Page 6

    L e f t p o we ram p bo ard ri g h t p o we ram p bo ard pad6 pad3 pad2 pad5 pad4 from pad1-6 f r om p 208a f r om p 206b f r om p 204a t o l e f t p 101b t o l e f t p 103b to p901b to l&r p102b to p402b from p901a from xformer from xformer from xformer from xformer f ro m re ar p ane l l &n t o r ...

  • Page 7

    Isc biridge scn/mute gnd out in isc tp protect offset tp fb tp2 scp o/p tp1 -15v vcc +80v vss vcc -80v +15v -15v -15v vcc +15v +15v -15v +15v +80v -80v 1 1 1 /5w /5w /5w /5w t o m ai n bo ard /1% /1kv /100v /1w /1/4w /100v /1w/1% /1w/1% /1w/1% /1% /1/2w /1% /1w/1% dc servo /100v /3w /1w /1% /1kv t o...

  • Page 8

    Vcc isc br scn/mute protect l scp isc relay scn/mute protect r scp l o/p r o/p vss bridge 12v trig in dgnd mute sen defeat sc led trig enable protect signal +15v agnd +5v bg led +26v -80v +80v +15v +80v -80v +15v -15v +80v -80v +15v -15v vcc vss -15v -26v -26v +36v +36v +36v +26v -26v +5v +5v +5v +1...

  • Page 9

    Trig enable protect red amber signal blue dgnd dgnd +15v agnd thermal prot sc led bg led +5v +15v agnd mute trigger sen defeat stby +5.6v on/off +5v +5v +15v +5v +5v +15v +5v +5v +5v +15v +5v +5v +5v all polyester capacitors are 63v 5% unless noted. All elec. Capacitors are 50v 20% unless noted. All...

  • Page 10

    Thermal prot stby dgnd +5.6v +12v agnd +5.6vd +5.6vd a ssemb led i n th e r ear pan el /y type /1w /x type /10v w403 only for c version w401&w402 only for ah version /x t y pe /400v /16v neutral live for ic402 all polyester capacitors are 63v 5% unless noted. All elec. Capacitors are 50v 20% unless ...

  • Page 11

    Ro ut rin+ rin- g ndr lo ut g ndl lin- lin+ +26v -26v all capacitors are smd0805 5% unless noted. All resistor are smd0805 1/10w 5% unless noted. /1% /1% /1% /1% r618 10 r618 10 r621 560 r621 560 r609 1.5k r609 1.5k r610 1.5k r610 1.5k c614 1uf c614 1uf c611 n.I. C611 n.I. Q614 2sc3324 q614 2sc3324 ...

  • Page 12

    S p e ake r a s p e ake r b bp901c bin bp901c binding post 6 5 bp901b bi bp901b binding post 3 4 p901b 6pin3.96-c p901b 6pin3.96-c 1 2 3 4 5 6 bp901a binding post 2 1 bp901d bin bp901d binding post 7 8 - 12 - schematics diagram.

  • Page 13

    !" # # # # # # $ #&'#&;# $ $ #==?&;# # ; $ ? @ $ ;& $ [ # $ @ @ \ ] ? ? @ = # @ ; # # ] ? ' $ @ = # ;= @ = # # ; # # = # # @ [ ? # @ ] ? & ;& # @ @ = # && = @ = # \ \& ' ; # # # @ $ $ # # # ' # # # # = # # @@ = # # # # - 13 - pcb layout.

  • Page 14

    ;=#&'#&;# ;=#==?&;# # ; # ? \ \ & \& ?\ ' # # ' # # # &=]? ?? [ # # ;& & @=# @=# && ' #^ #^ [ # # # # # # [ @ @ \& ; # \& ; [ #^ #^ &=]? [ ?? ;#@ _` ! " & ;& ; ; && ; @=# @=# ' ' & # { & # # # # # # & # # # & - 14 - pcb layout.

  • Page 16

    ‰Š‰#&'#&;# ‰Š‰#==?&;# !" - 16 - pcb layout (01-37506-00).

  • Page 18

    _`_`^‡"==?&;# _`_`^‡"&'#&;# _`_`^‡"!" - 18 - pcb layout.

  • Page 19

    Designator description part type part number footprint p/n 01-37501-00 pcb1 board (poweramp module) diode d101 switch diode 1n4148 33-44148-00 dax/.300x.080/.031 d102 switch diode 1n4148 33-44148-00 dax/.300x.080/.031 d103 switch diode 1n4148 33-44148-00 dax/.300x.080/.031 d104 switch diode 1n4148 3...

  • Page 20

    Designator description part type part number footprint q133 transistor ksc2690aystu 31-02690-00 to126/90/ecb q135 transistor ksc2690aystu 31-02690-00 to126/90/ecb q136 transistor ksc2690aystu 31-02690-00 to126/90/ecb q137 transistor ksa1220aystu 31-01220-00 to126/90/ecb q138 transistor ksa1220aystu ...

  • Page 21

    Designator description part type part number footprint r127 metal film resistor 10Ω, 1/6w, 5% 07-20100-50 ax/.200x.080/.031 r128 metal film resistor 10Ω, 1/6w, 5% 07-20100-50 ax/.200x.080/.031 r129 metal film resistor 10Ω, 1/6w, 5% 07-20100-50 ax/.200x.080/.031 r130 metal film resistor 1kΩ, 1w, ±1% ...

  • Page 22

    Designator description part type part number footprint r184 metal film resistor 470Ω, 1/6w, 5% 07-20471-50 ax/.200x.080/.031 r185 metal film resistor 47kΩ, 1/6w, 5% 07-20473-50 ax/.200x.080/.031 r186 metal film resistor 22kΩ, 1/6w, 5% 07-20223-50 ax/.200x.080/.031 r187 metal film resistor 2k2Ω, 1/6w...

  • Page 23

    Designator description part type part number footprint c102 polyester capacitor 100nf, ±5%, 250v 25-10422-01 rad/cap/.300x.150/ls.200/.031 c103 alu electrolytic capacitor 10uf/50v, ±20%, 105 06-10051-01 cpcyl1/d.200/ls.200/.031 c104 ceramic capacitor 33pf, ±5%, 1kv 05-33013-02 cpax/.200x.100/.031 c1...

  • Page 24

    Designator description part type part number footprint pot rv102 semi pot 500Ω, vertical type 09-02501-02 vres17 rv103 semi pot 10kΩ, vertical type 09-02103-02 vres17 rv104 semi pot 100Ω, vertical type 09-02101-01 vres17 connector p101b housing 11pin2.54-c 13-22511-01 blkcon.100/vh/tm1sqs/w.300/11 p...

  • Page 25

    Designator description part type part number footprint resistor r201 metal film resistor 10kΩ, 1/6w, 5% 07-20103-50 ax/.200x.080/.031 r202 metal film resistor 22kΩ, 1/6w, 5% 07-20223-50 ax/.200x.080/.031 r203 metal film resistor 22kΩ, 1/6w, 5% 07-20223-50 ax/.200x.080/.031 r204 metal film resistor 1...

  • Page 26

    Designator description part type part number footprint r258 metal film resistor 100kΩ, 1/6w, 5% 07-20104-50 ax/.200x.080/.031 r259 metal film resistor 100kΩ, 1/6w, 5% 07-20104-50 ax/.200x.080/.031 r260 metal film resistor 330kΩ, 1/6w, ±5% 07-20334-50 ax/.200x.080/.031 r263 metal film resistor 220Ω, ...

  • Page 27

    Designator description part type part number footprint c242 polyester capacitor 100nf, ±5%, 63v 25-10461-07 rad/cap/.300x.150/ls.200/.031 c243 ceramic disc capacitor 10pf, ±5%, 1kv 05-10013-01 cpax/.200x.100/.031 c244 alu electrolytic capacitor 100uf, 6.3v, ±20%, 105 06-10160-07 cpcyl1/d.200/ls.200/...

  • Page 28

    Designator description part type part number footprint to p901b wire ul1015#16awg, l=120mm(black wire), l=100mm(orange/white/blue/ red wire) 14-27606-00 g201 ground solder tap gnd-8 32-28042-00 switch s201 switch sssu122na1 j11-05202-10 slideswitches/sssu141500 s202 switch sssu122na1 j11-05202-10 sl...

  • Page 29

    Designator description part type part number footprint relay rl401 relays dh1u5vdc tv-8 dh5d1-o a12-02101-01 fuse f401 fuse t1al/250v a20-12102-00 fuse holder f401 fuse holder ls-ptf-78 (cq-200c) a20-20000-06 rad/.1000x.400/ls.850/.066 connector j401 jack hs4-ci9120-b009v1-m032 32-26304-00 j402 jack...

  • Page 30

    Designator description part type part number footprint r914 metal film resistor 1kΩ, 1/6w, 5% 07-20102-50 ax/.200x.080/.031 r915 metal film resistor 4.7kΩ, 1/6w, ±5% 07-20472-50 ax/.200x.080/.031 r916 metal film resistor 1kΩ, 1/6w, 5% 07-20102-50 ax/.200x.080/.031 r917 metal film resistor 1kΩ, 1/6w,...

  • Page 31

    Designator description part type part number footprint resistor r601 chip resistor 1megΩ ,1/8w,±5% 07-90105-00 sm/r_0603 r602 chip resistor 1megΩ ,1/8w,±5% 07-90105-00 sm/r_0603 r603 chip resistor 220Ω ,1/8w,±5% 07-90221-00 sm/r_0603 r604 chip resistor 220Ω ,1/8w,±5% 07-90221-00 sm/r_0603 r605 chip ...

  • Page 32

    Designator description part type part number footprint switch to fuse holder wire ul1672#16awg , red, l=100mm a14-37501-00 ac inlet to j401 wire ul1672#16awg,blue, l=460mm a14-37501-01 fuse holder to j402 wire ul1672#16awg , red, l=380mm a14-37501-02 p206b--p101b(l ch) wire ul2468#24awg*5c&6c,t wo t...

  • Page 33

    S011 c006 s002 t001 r002 s011 r004 r005 r006 s006 r003 r007 s005 s002 r001 s014 s013 c005 c011 s007 c009 c004 s015 s009 s002 s002 c012 s003 s010 c010 c001 c003 s016 s002 c007 c008 s005 c002 s012 s004 s002 f002 s001 f004 s002 f010 f007 f008 f001 f005 f009 f003 f006 f011 s003 f012 s008 a003 a004 s005 ...

  • Page 34

    Ref.No part no. Description qty. Ref.No part no. Description qty. 01-37501-00 poweramp module board 2 f008 76-062001-1 led lens 2 a001 70-124010-1 main heatsink 2 f009 79-124003-0 cr foam c 1 a002 85-010001-0 spacer 10 f010 79-062001-0 rubber pad 4 a003 66-018005-0 thermal switch clamping 4 f011 01-...

  • Page 35

    $= " = #‡!_‰"_` " \ ‡_` \~ ‡_` ~ ? ‡_` ?~ =`}•` ˆ"ƒ ˆ€^ ˆ‹Š ` ‰–— ˆ‹Š ` ‰–— { \~ { ?~ ˆ€^ ;`‡"†!"_` `†ˆ `† ˆ€^ "` ˜ - 35 - packing diagram.

  • Page 36: Version History

    Circuit change date improve the q147 power dissipation 1) r186 changed from 10k to 22k 2) r187 changed from 510 ohms to 2.2k dec. 10. 08 correction for power off pop noise c245/c253 changed from 100nf to 10uf/50v electrolytic capacitor change top cover & chassis for better fit from serial number: h0...