1. DL manuals
  2. NAD
  3. Receiver
  4. C715
  5. Service Manual

NAD C715 Service Manual

Other manuals for C715: Catalog, Owner's Manual, Datasheet

Summary of C715

  • Page 1

    ! 5 . ! - % #) 6 2 % 3 #$2eceiver # #$!" #$2eceiver # #$!" for orignal dab module up to s/n a86c71512400 draft: march 2010

  • Page 3

    1- 3 caution : do not attempt to modify this product in any way. Never perform customized installations without manufacturer’s approval. Unauthorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. Service work should...

  • Page 4: Servicing Precautions

    1- 4 servicing precautions caution : before servicing the a/v receiver covered by this service data and its supplements and addends, read and follow the safety precautions. Note : if unforeseen circumstances create conflict between the following servicing precautions and any of the safety precaution...

  • Page 5: Specifications (C715)

    1- 5 specifications (c715) amplifier section power output stereo mode 25w (6 ohms within rated distortion, 1khz) ihf dynamic power (6 ohms) 28w total harmonic distortion at rated power 0.15% damping factor (6 ohms) >102 input sensitivity and impedance (tape in) 370mv/27kΩ frequency response +1 db/-3...

  • Page 6: Specifications (C715 Dab)

    1-6 specifications (c715 dab) amplifier section power output stereo mode 25w (6 ohms within rated distortion, 1khz) ihf dynamic power (6 ohms) 28w total harmonic distortion at rated power 0.15% damping factor (6 ohms) >102 input sensitivity and impedance (tape in) 370mv/27kΩ frequency response +1 db...

  • Page 7: Disassembly

    Disassembly removal of top cover removal of front panel 1- 7.

  • Page 8: Principal Parts Location

    Eqnmsoba bcldbg@mhrl gd@srhmj @looba sq@mrenqldq onvdqoba l@hmoba c@alnctkd stmdqlnctkd eqnmsoba bcldbg@mhrl gd@srhmj @looba sq@mrenqldq onvdqoba l@hmoba stmdqlnctkd rod@jdqoba rod@jdqoba principal parts location c715dabc c715ah & c715c 1-8 cjdksl2130ccmz cjdksl2130ccmz dab module up to s/n a86c7151...

  • Page 9

    C715ah exploded view (120v north american version) 1-9 1-10 c d mechans im s ony** classification time of application power pcb power pcb ass'y dab module rear panel washer nut cd mechanism program **chart b c715 change list c715c, c715ah, c715dabc cd mechanism change 2008.10 start cjdwsl11vf s anyo...

  • Page 10

    C715c exploded view (230v european version without dab receiver) 1-11 1-12 c d mechanis m s ony** classification time of application power pcb power pcb ass'y dab module rear panel washer nut cd mechanism program **chart b c715 change list c715c, c715ah, c715dabc cd mechanism change 2008.10 start cj...

  • Page 11

    C715dabc exploded view (230v european version with dab receiver) 1-13 1-14 w /o f -c onnector c d mechanis m s ony ** classification c715dabc old (dab 1.0 module) time of application 2007.11 start to a86c71512400 end power pcb cup12019z power pcb ass'y cop12019b dab module hnvfs2020v172c rear panel ...

  • Page 12

    -/" ÊÓ /,Ê" / /- " / /- )#",/#+$)!'2!-30).$%3#2)04)/. . 2 %,%#42)#!,42/5",%3(//4).''5)$% 35 $)!'2!-3 £°Ê"Ê,Ê°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°° Ó°Ê7, Ê,Ê °°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°...

  • Page 13

    2-2 ic block diagrams & pin description 74hc4066d quad bilateral switche handbook, halfpage mgr257 11 4y 12 4e 4z 10 3z 9 2z 3 1z 2 8 3y 6 3e 4 2y 5 2e 1 1y 13 1e fig.5 functional diagram. Handbook, halfpage mgr258 vcc gnd ne nz ny vcc fig.6 schematic diagram (one switch). 74vhc08ttr pin connection ...

  • Page 14

    2-3 ak4554.

  • Page 15

    2-4 st92f124v st92f124v1: architectural block diagram 256 bytes register file ram 4 kbytes st9 core 8/16 bits cpu interrupt management me mor y bu s rccu ext. Mem. Address data port0 ext. Mem. Address ports 1,9 re giste r bu s watchdog as ds rw wait nmi ds2 rw miso mosi sck ss a[10:8] a[21:11] a[7:0...

  • Page 16

    2-5 st92f124v1: pin configuration (top-view tqfp100) 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 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 100 99 98 97 96 95 94 93 92 91 ...

  • Page 17

    Nad c715_mcu_port table date : 2007/12/22 1 a20/p9.6 i/o o vfd-ce vfd chip enable pin 2 a21/p9.7 i/o nc 3 wait/wkup5/p5.0 i/o i dab-di dab data in 4 wkup6/wdout/p5.1 i/o i/o dab-clk dab clock 5 sin/wkup2/p5.2 i/o i/o dab-do dab data out/update port 6 wdin/sout/p5.3 i/o i dab-on update port 7 txclk/c...

  • Page 18

    73 p8.2/ain2 i/o nc 74 p8.3/ain3 i/o i jog1 volume encoder in + 75 p8.4/ain4 i/o i jog2 volume encoder in - 76 p8.5/ain5 i/o nc 77 p8.6/ain6 i/o nc 78 p8.7/ain7 i/o nc 79 avdd vdd +5v 80 avss gnd gnd 81 p7.0/ain8/ck_af i/o o power-h power on pin, active "h" 82 p7.1/ain9 i/o o p/f-data tuner and func...

  • Page 19

    2-8 fs2020 (venice) hw spec 1.2 serial flash band iii rf external dac or codec sdram (optional) usb i/face audio dac s/pdif & rdi i/faces 384kb ram serial i/faces fs1010 (chorus) keypad /rotary encode lcd 5v figure 1 - venice module block diagram (functions in white are on board, in grey are externa...

  • Page 20

    2-9 hy57v161610et pin configuration v ss dq15 dq14 vssq dq13 dq12 vddq dq11 dq10 vssq dq9 dq8 vddq nc udqm clk cke nc a9 a8 a7 a6 a5 a4 vss 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 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 v dd dq0 dq1 v ssq dq2 dq...

  • Page 21

    2-10 functional block diagram 1mx16 synchronous dram column addr. Latch & counter burst length counter refresh interval timer refresh counter dq0 dq1 dq2 dq3 dq4 dq5 dq6 dq7 dq8 dq9 dq10 dq11 dq12 dq13 dq14 dq15 address register i/o control test mode mode register self refresh counter column decoder...

  • Page 22

    2-11 i 2 c interface rtc control logic alarm frequency out rtc divider sda buffer crystal oscillator por switch scl buffer sda scl x1 x2 v dd v bat irq/ f out internal supply v trip seconds minutes hours day of week date month year user sram control registers pin number symbol description 1 x1 the x...

  • Page 23

    2-12 lc72723m pin assignment (dip16/mfp16) block diagram.

  • Page 24

    2-13 pin descriptions pin no. Pin function i/o pin circuit type reference voltage output (vdda/2) output 1 vref base band (multiplex) signal input input 2 mpxin subcarrier output (filter output) output 5 flout subcarrier input (comparator input) input 6 cin analog system power supply (+5 v) — — 3 vd...

  • Page 25

    2-14 m29w400d tsop connections note: 1. Nc = not connected dq3 dq9 dq2 a6 dq0 w a3 rb dq6 a8 a9 dq13 a17 a10 dq14 a2 dq12 dq10 dq15a–1 vcc dq4 dq5 a7 dq7 nc nc ai06854 m29w400dt m29w400db 12 1 13 24 25 36 37 48 dq8 nc nc a1 nc a4 a5 dq1 dq11 g a12 a13 a16 a11 byte a15 a14 vss e a0 rp vss chip enable...

  • Page 26

    Ta2125af 2-15 24 6 7 12 13 1 2 rl5 36 v r 35 34 33 32 31 30 control logic 3 stby stby rin fin 4ch driver stb in3 in4 reg stb 29 27 28 fin v cc 26 25 reg out n.C. 23 22 21 u 3 u 3 u 3 u 3 20 19 4 vcin in1 5 n.C. N.C. U 3 u 3 u 3 u 3 15 16 17 18 in2 n.C. N.C. 11 14 8 9 fin 10 gnd iref tsd rl4 rl3 rl2 ...

  • Page 27

    Terminal explanation no. Symbol function 1 out5a output terminal h-bridge 2 v m supply voltage terminal for logic h-bridge 3 out5b output terminal h-bridge 4 v cin input reference voltage 4ch btl 5 in1 input for ch1 4ch btl 6 n.C. Open ¾ 7 n.C. Open ¾ 8 n.C. 8, 9, 10, 27, 28, 29 are connected to pw ...

  • Page 28

    2-17 tc94a54mfg 1. Pin configuration and block diagram fpi1 fpi2 fni2 mdi ldo rvdd3 pnsel rfo fte tni tpi fni1 rvss3 pv ss 3 vco ref vcof pvr ef lp fo lpfn tm ax pdo pvdd 3 aw rc rf zi avs s3 rf rp fe i sb ad /r fd c te i te zi avdd 3 foo tr o vre f fm o ai n lrcko bcko ao ut pi o2 pi o3 do u t pi o...

  • Page 29

    2-18 3. Pin functions note: 3ai/f : 3 v circuit analog input/output pin 3i/f : 3 v circuit digital input/output pin 1.5ai/f : 1.5 v circuit analog input/output pin pin no. Pin name i/o description remark 1 rfzi i 3ai/f input pin for the rf ripple zero-cross signal. To be connected to the rfrp via 0....

  • Page 30

    2-19 pin no. Pin name i/o description remark 17 sfsy (emph) (lock) (monit) o 3i/f pin for outputting the playback frame sync signal. (emphasis flag output pin. Enph on: "h". Emph off: "l". The output polarity can be switched, using a command.) (lock signal) (pin for monitoring signals in the dsp.) 7...

  • Page 31

    2-20 pin no. Pin name i/o description remark 36 bus0 i/o 3i/f 37 bus1 i/o 3i/f 38 bus2 i/o 3i/f 39 bus3 i/o 3i/f data input/output pin for the microcontroller interface. To be fixed at "h" or "l" when communication is not in progress, so that the pin will not become hiz. 40 buck i 3i/f clock input p...

  • Page 32

    2-21 pin no. Pin name i/o description remark 57 dout o 3i/f digital-out output pin. Digital data for up to double speed can be output when a frequency of 16.9344 mhz is used. As per cp-1201 58 aout o 3i/f audio data output pin. Which bit is first (msb first or lsb first) can be selected, using a com...

  • Page 33

    Pin no. Pin name i/o description remark 75 pvss3 — 3.3 v grounding pin dedicated to the pll circuit. — 76 slco o 3ai/f efm slice level output pin. For both analog and digital slice modes, the output impedance # 2.5 k:. A capacitor to be connected is selected according to the servo operation band. 77...

  • Page 34

    Pin no. Pin name i/o description remark 94 fni2 i 3ai/f main beam input pin. Connected to pin diode c. — 95 fni1 i 3ai/f main beam input pin. Connected to pin diode a. — 96 fpi2 i 3ai/f main beam input pin. Connected to pin diode d. — 97 fpi1 i 3ai/f main beam input pin. Connected to pin diode b. — ...

  • Page 35

    Tc9163 2-24.

  • Page 36

    2-25.

  • Page 37

    2-26.

  • Page 38

    Tcc760 block diagram tdi, tms, tck ntrst, tdo xin, xout xtin, xtout xfilt ut_tx / gpio_b[8] ut_rx / gpio_b[9] gpio_a[15:0] gpio_b[29:21] gpio_b[9:7] gpio_b[5:0] gpio_d[17:15] gpio_a[11:0] exint[3:0] / gpio_a[15:12] tco2 / gpio_a[11] tco5 / gpio_a[8] tco1 / gpio_a[7] tco4 / gpio_a[4] tco0 / gpio_a[3]...

  • Page 39

    Pin description the status of the following gpio pins are latched at the rising edge of nreset and used to determine the system bus width and boot mode. External devices must not drive output levels onto these pins during reset period. Pin name state during reset state after reset during normal func...

  • Page 40

    Signal name shared signal pin # type description – tcc760 xd[3:0] 128:125 ncs[3:0] nd_noe[3:0] / gpio_b[5:2] 50:47 i/o external bus chip select [3:0] / nand flash output enable [3:0] / gpio_b[5:2] nd_nwe gpio_b[7] 57 i/o nand flash we. Active low. / gpio_b[7] nwe 58 i/o static memory write enable si...

  • Page 41

    Signal name shared signal pin # type description – tcc760 gpio_a[0] sdo0 / fgpio[0] 104 i/o gpio_a[0] / general purpose serial i/o 0 serial data output fgpio[0] gpio_b[29:28] usbh_dn, usbh_dp 54:53 i/o gpio_b[29:28] / usbh_dn, usbh_dp gpio_b[27:26] usb_dn, usb_dp 52:51 i/o gpio_b[27:26] / usb_dn, us...

  • Page 42

    Signal name shared signal pin # type description – tcc760 vdd_usb - 64 pwr power for usb i/o (3.3v) vdd_osc - 71 pwr digital power for oscillators (1.8v) vddi - 119 109 41 24 7 pwr digital power for internal core (1.8v) vddi_adc - 87 pwr digital power for adc (1.8v) vdda_adc - 81 pwr analog power fo...

  • Page 43

    Tda 7292 +5v 18k 15k in (l) 1 μf 15k 1 μf mute/ st-by gnd in (r) 1 μf 4.7 Ω 4.7 Ω 100nf 100nf out (l) out (r) 1000 μf 1000 μf +v s 3 5 7 9 6 11 2 4 + + - - d94au085 rl (l) rl (r) -v s μp 560 Ω 18k in- (l) 8 10 in- (r) 1 560 Ω 18k this is preliminary information on a new product now in development. D...

  • Page 44

    Tda 7313 pin connection (top view) 2-33.

  • Page 45

    L1 15 l1 l2 14 l2 l3 13 l3 input selector + gain c1 c2 c3 left inputs 3x 2.2 μ f supply r3 9 r3 r2 10 r2 r1 11 r1 c4 c5 c6 3x 2.2 μ f right inputs 231 v s agnd cref c9 2.2 μ f out(l) in(l) 17 16 vol + loud loud(l) 12 100nf c14 bass 19 5.6k r2 bout(l) 18 bin(l) 100nf c15 rb treble c17 2.7nf treble(l)...

  • Page 46

    32:(5&+(&. 12 )25$//32:(5,6215(/$ $7),5673/($6(&+(&.5 12 3rzhu/(' , v9dssolhg wr&1slqڪ" & khfn)ixvh & khfn4' risrzhu3&% & khfnwkh7 & kdqjh & khfnwkh)urqw0dlq srzhurq&lufxlw 12 )/' , v9dssolhg wr&1slqڧ d qg9dssolhg wr&1slqڦ" & khfn44ri0dlq 3&% & khfn3rzhu7udqviruphu , vdfyrowdjj d ssolhgwr%1 ڥ ڦڧ" & ...

  • Page 47

    86%3$57&+(&. '$%3$57&+(&. 32:(5 21 , qvhuwd86%0hpru\lqwkh 6(7 86% lfrqdsshdu rqwkh9)'" , v9dssolhgwr %1 ձ" , v9dssolhg wr,&ڣslq" f khfn7&&uhvhw f lufxlw & khfn7&&dqg 0&8 lqwhuidfh 2 . Yes yes yes no & khfn86%9 yes 32:(5 21 $xwrvfdqdsshdurqwkh 9)'" 86% dsshdurqwkh 9)'" , v99 d ssolhgwr%1 slq" & khfn:...

  • Page 48

    $8',23$57&+(&. $8',2 287387 32:(5 21 , v 3 rzhus9&&s9 9fruuhfwo\" , v5 , v)xqfwlrqpxwh z runhgfruuhfo\" & khfnixqfwlrq pxwhflufxlw , v9&55(&287387 & khfn3rzhuolqh & khfn,&9roxph,& yes yes no no yes & khfnvsrq f lufxlw & khfn,&)xqflwrq,& yes no no 1223(1&/26( 1 r23(1&/26( 3 xvk23(1&/26(.H\ , v,qglfdw...

  • Page 49

    1r3/$ 1 r3od\edfn 3 xvk23(1&/26(.H\ &1 slq +ǿ/ǿ+ " /d] hurq" / hq]xsgrzq" & khfn,&slq vljqdo 3 od\',6&exw qrwqrupdo & khfn,&,& 5 hsodfh&'wudyhuvhxqlw yes yes no yes & khfn4ru 5 hsodfh&'slfnxs yes no no & khfn,&slq vljqdo , v&1 f rqqhfwhg f ruuhfwo\" 5 hsodfh&'wudyhuvhxqlw & khfn,& & khfn,&ru&dug&deo...

  • Page 50

    1. Block diagram 2-39 2-40

  • Page 51

    2. Wiring diagram 2-41 2-42.

  • Page 52

    470 470 3. Schematic diagram main part 2-43 2-44.

  • Page 53

    Power & power amp & keyboard part 2-45 2-46.

  • Page 54

    4. Printed circuit boards main pcb data view (top) 2-47 2-48.

  • Page 55

    Main pcb data view (bottom) 2-49 2-50

  • Page 56

    Power pcb data view 2-51 2-52.

  • Page 57: Section 3

    Main pcb ass'y ( dabc : cop12018b, c : cop12018c, ah : cop12018d ) cup12018z pcb , main c715(291x216, fr-4, 2 array) ref no. Part no. Remarks cup12018z main board c101 ccus1h103kc cap , chip 0.01uf 50v k c103 ccus1h222kc cap , chip 2200pf 50v k c104 ccus1h222kc cap , chip 2200pf 50v k c108 ccus1h104...

  • Page 58

    C437 ccus1h104kc cap , chip 0.1uf 50v k c438 ccus1h104kc cap , chip 0.1uf 50v k c439 ccus1h104kc cap , chip 0.1uf 50v k c451 ccus1h102kc cap , chip 1000pf 50v k c452 ccus1h102kc cap , chip 1000pf 50v k c454 ccus1h103kc cap , chip 0.01uf 50v k c456 ccus1h561ja cap , chip 560pf 50v j c457 ccus1h220ja ...

  • Page 59

    D501 cvd1ss355t diode , chip d502 cvd1ss355t diode , chip d901 hvdudzs27bsr diode , zener 27v, 1712 type d902 hvdudzs9.1bsr diode , zener 9.1v, 1712 type d905 hvdudzs4.3bsr diode , zener 4.3v, 1712 type d906 cvd1ss355t diode , chip ic11 hvitc94a54mfg01 i.C , digital servo ic12 hvita2125afg i.C , mot...

  • Page 60

    R145 crj10dj223t res , chip 1608 size r146 crj10dj0r0t res , chip 1608 size r148 crj10dj100t res , chip 1608 size r149 crj10dj100t res , chip 1608 size r401 crj10dj562t res , chip 1608 size r402 crj10dj562t res , chip 1608 size r403 crj10dj102t res , chip 1608 size r404 crj10dj102t res , chip 1608 s...

  • Page 61

    R520 crj10dj473t res , chip 1608 size r521 crj10dj102t res , chip 1608 size r522 crj10dj101t res , chip 1608 size r523 crj10dj123t res , chip 1608 size r524 crj10dj103t res , chip 1608 size r525 crj10dj153t res , chip 1608 size r526 crj10dj104t res , chip 1608 size r527 crj10dj562t res , chip 1608 s...

  • Page 62

    R911 crj10dj471t res , chip 1608 size r912 crj10dj101t res , chip 1608 size r914 crj10dj0r0t res , chip 1608 size r917 crj10dj122t res , chip 1608 size r918 crj10dj181t res , chip 1608 size r919 crj10dj473t res , chip 1608 size r920 crj10dj330t res , chip 1608 size r921 crj10dj271t res , chip 1608 s...

  • Page 63

    Q902 hvtksc2316yt t.R ksc2316y cn11 cjp05ga19zy wafer , straight cn12 cjp06ga19zy wafer , straight cn13 cjp16ga117zy wafer cn21 cjp13ga117zy wafer , card cable cn31 cjp05ga19zy wafer , straight cn41 cjp05ga19zy wafer , straight cn42 cjp07ga19zy wafer , straight cn51 cjp03ga19zy wafer , straight cn61...

  • Page 64

    Power pcb ass'y ( dabc : cop12019b, c : cop12019c, ah : cop12019d ) cup12019z pcb , power c715(240x251, fr-1) ref no. Part no. Description remarks cup12018-1 usb board bn83 cwzc715bn83 shiel wire ass'y(5p, 250mm) c821 hcbs1h104zft cap , ceramic 0.1uf 50v z jk83 hjj9x001z jack, usb ref no. Part no. D...

  • Page 65

    Ref no. Part no. Remarks cup12018-4 speaker board bn31 cwb2b005050en wire ass'y bn62 cwb1c005200bm wire ass'y(5p, 200mm) c303 hcqi1h682jzt cap , mylar 6800pf 50v j c304 hcqi1h682jzt cap , mylar 6800pf 50v j c305 hcbs1h104zft cap , ceramic 0.1uf 50v z c306 hcbs1h104zft cap , ceramic 0.1uf 50v z cn53 ...

  • Page 66

    D213 cvd1n4003srt diode , rect 1n4003 d214 cvd1n4003st diode , rect 1n4003 d215 cvd1n4003st diode , rect 1n4003 d216 cvd1n4003st diode , rect 1n4003 d217 cvd1n4003st diode , rect 1n4003 et91 cne75 plate , earth f751 kba2c2000tlez fuse t 2a l 250v c715dabc, c715c f751 kba2c3000tluz fuse sb 3a 250v c7...

  • Page 67: Service Hint

    Service hint product: c715 hardware technical bulletin: c715-h2009-01 date: april 1 2009 subject: tray functionality note: this condition only affects a small number of units produced with this batch of leaf switches description : cd tray may not open or close. Reason : the tray sense switch can gro...

  • Page 68: .!$%,%#42/.)#3).4%2.!4)/.!

    ! 5 . ! - % #) 6 2 % 3 .!$%,%#42/.)#3).4%2.!4)/.!, 4/2/.4/ © # #$!".