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TUNER

NOTE:

  1. RESISTORS ARE CARBON FILM 5% 1/8W 

UNLESS OTHERWISE SPECIFIED.

 

2. CERAMIC CAPACITORS ARE 50V 10% 

UNLESS OTHERWISE SPECIFIED.

SHEET:    2  OF 3

TITLE:

SIZE:

REV:

Revision

Sheet Size

Company Name

FILE:

NATNC426(A)

Product Code:

Customer

N09CSXX

NAD

C426 TUNER

GND

GND

FM

GND

1

2

3

ANT

GND

ANT

7

4

6

8

IF

GND

B+

OSC

5

VT

NMRF-5077

MITSUMI FE450-G11

R901

R904

R907

R903

R905

R908

R975

R959

R960

C901

C961

C962

Q901

3K3

-

-

1K

-

-

33K

120K

120K

-

332

332

-

33K

330

3K3

12K

680

470

56K

270K

270K

223

152

152

2SC945A-P

AH

C

R957

4K3

3K

R958

4K3

3K

TUNER_L

TUNER_R

M971

M901

FM_SD

(M)

(M)

(M)

(M)

(M)

(M)

SEP.

(M)

R960

*

C964

22U/16V

1

FM

_I

2

A

M

_M

IX_O

3

FM

_I_BYPASS

4

AM_

I

5

GND

6

TU

7

ST

8

VC

C

9

FM

_DE

T

E

C

T

10

AM_

N

AR

R

O

W

11

FM

_S_O

12

A

M

_S_O

13

IF_B

UFF

14

PHAS

E_

CO

MP

15

P

ILOT_DE

TE

C

T

16

R_O

17

L_O

18

R_I

19

L_I

20

R_M

P

X_O

21

L_M

P

X_O

22

MPX

_

I

23

FM

_DM

_

O

24

AM_

D

ET

ECT

_

O

25

AM_

A

GC

26

AF

C

27

A

M

_RF_I

28

RE

G

29

OSC

30

O

S

C_

BUF

F

U901

LA1837

R963
100K

R959

*

C961

*

R957

*

R958

*

C962

*

C963

22U/16V

C959

10U/16V

C960

10U/16V

R961
470R

R962
470R

R964
100K

E

C

B

Q944

2SD1468A

Q943

2SD1468A

C953

272J

C954

272J

C951

10U/16V

R954

10K

R975

*

C979

10U/16V

C970

223

1

2

3

R941

22K

C976

223Z

C977

10U/16V

1

2

P901

C978

223Z

C975

10U/16V

C974

223Z

R973

18K

C971

8P (NPO)

R972
10K

C973

473J

C982

101J

C981
223Z

C949
223Z

E

C

B

Q942
2SC1740S

R949

3K3

R951

1K

R950

680K

C950
223Z

E

C

B

Q945

DTA114ES

R968

1K

C967

10U/16V

C948

1U/50V

R948

10K

C947

0.47U

50V

C946

1U/50V

R946

3K3

R945

10K

R947

10K

C968

223Z

C969

47U
16V

C943

2u2

50V

3

2

1

M911
CST12

450JL3

R974
100K

C941

223Z

C942

1000U

16V

D902

9.1V

1/2W

R931

22E

C932

223Z

C944
4.7u

50V

R944
100K

C945

101J

R943

8K2

R942
4K7

R913

0R

M985

4.332MHz

C989

30P (NPO)

C988

30p (NPO)

C985

561

C987

223Z

C986

6V3

100u

C990

6V3

100u

R987

1K

R986

1K

R985

1K

L985

100uH

R953

22K

R952

22K

R922

1K

R921

1K

C925

20P (NPO

)

C924

20P (NPO

)

R923

1K

C930

223Z

C931

100U/6V3

R924

1K

C927

2u2/50V

C926

333J

B

C

E

Q923

2SC1740S

R929

3K3

R928

220

R927

10K

C929

0.22U/16V

C928

10U/16V

1

3

2

M902

SFE10.7MA5

R902

22E

R901

*

B

C

E

Q901

*

C901

*

1

3

2

M903

SFE10.7MA5

R904

*

R908

*

R907

*

B

C

E

Q902

2SC1923-0

R909
330E

R910

330E

1

3

2

M904

SFE10.7MA5

C902

223Z

C903

223Z

1003

C904

10U/16V

R579

100K

68

2200p

5p

100K

0.018u

1.5p

2200p

100K

3

1

4

6

5p

27p

470K

470p

8p

10K

100E

0.018u

15p

330E

330K

5p

10E

220

330E

22p

1K8

10K

5p

0.7p

2K7

82p

0.018u

22E

10K

1

3

4

L941

NFIF-4081

4

6

1

3

L942

NFIF-4082

M971-A

M971-B

M971-C

1

2

3

4

6

L903

*

NMC-4085

4

6

1

2

3

L972

NMIF-4062

1

2

3

4

6

L904

*

NMC-4085

R956

10K

C965

272K

C906

100U/16V

R903

*

R905

*

R911

100

C991

102

C916

330p

L901

22uH

R906

10K

C911

20p

B

C

E

Q922

2SC1740S

C912

102

C913

102

M905

7.

2M

H

z

R916

1K

R918

4K7

C914

100p

C915

100p

R919

1K

R920

1K

E

C

B

Q903

DTA114ES

RDSID/READY

RDCL

RDDA

RST

MODE

VDDD

VSSD

XIN

XOUT

TEST

CIN

FLOUT

VSSA

VDDA

MPXIN

VREF

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

U902

LC72723

L905

100uH

C992

0.01u

1

XIN

2

CE

3

DI

4

CL

5

DD

6

SY

C

7

IN0

8

IN1

9

OUT0

10

OUT1

11

OUT2

12

OUT3

13

OUT4

14

OUT5

15

LC

TR

16

HCT

R

17

OUT6

18

AMI

N

19

FM

IN

20

VD

D

21

PD1

22

PD2

23

VSS

24

XOUT

U903

LC7218

R915

10K

E

C

B

Q980

DTC114

R989
10K

E

C

B

Q981

DTA114

R983

100K

Q982

2SK363BL

D980

1N4148

R984

1M

R988
470

C980

224K

R981

100

R995
100k

R996

0R

R993

100K

R994

100k

R998

0R

R997

100K

R969

100K

E

C

B

Q984

C114

R992

2K2

R912

100uH

J965

1N4001

R955

100uH

C966

223K

C998

152K

C999

152K

C994

152K

C993

152K

GND

GND

+9V

+5V-D

+9V

+5V-D

+9V

-9V

+12V

FM_STEREO

FM_SD

TUNER-MUTE

RDS_SIG

RDS-DATA

RDS_CLK

AM-SMETER

FM-SMETER

DATA-I

N

CLK

CE-P

LL

DATA-O

UT

Содержание C 426

Страница 1: ...NAD C 426 STEREO AM FM TUNER C 426STEREO AM FM TUNER SERVICE MANUAL...

Страница 2: ...critical with regard to the risk of fire and electric shock Replace only with parts recommended by the manufacturer CONTENTS DESCRIPTION PAGE SPECIFICATIONS 3 4 REAR PANEL FRONT PANEL 5 DISASSEMBLY IN...

Страница 3: ...tem 8 1000 7 Output 999 mV 100 180 30 10mV 1000 8 Loop sensitivity 20dB S N 999 1000 dB 68 603 600 dB 68 1404 1400 dB 68 9 Frequency response 100 2 3KHz 999 1000 dB 0 6dB 400 Hz 5mV FM BAND SPECIFICAT...

Страница 4: ...dB 0 1 5 1KHz Ref UL 75Us CE50Us 10 Channel Separation 30 Hz dB 28 60dBu IHF wtd 1 KHz dB 38 10KHz dB 28 11 Alternate channel selectivity 400KHz IHF UL dB 35 CE dB 60 12 Muting level dBu 18 6 13 Outpu...

Страница 5: ...ENSOR 10 VFD 11 PRESET TUNE CONTROL KNOB 1 2 3 4 5 6 7 8 9 10 11 FRONT PANEL 1 4 3 2 5 6 7 REAR PANEL IMPORTANT NOTES 1 Show the software version Press DISPLAY and FM AM 2 Light UP all the icon on the...

Страница 6: ...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 remo...

Страница 7: ...1 AM FM IF LA1837 MUTING IR IN U701 74HC86 STANDBY POWER SUPPLY RS232 M218 REMOTE SENSOR POWER SUPPLY VFD STANDBY 3V3 VP 5V CPU 10V AC INPUT RELAY L R VT VT ce data clk RDS CLK RDS SIG RDS DATA MPXIN...

Страница 8: ...8 WIRING DIAGRAM TRANSFORMER MAIN board DSP board PSU board LED board KEY board YELLOW BLUE WHITE 7013 0490 0...

Страница 9: ...9 ADJUSTMENT POINTS DIAGRAM OSC RF VT...

Страница 10: ...PUT TERMINAL L R ANTENNA TERMINAL ANTENNA TERMINAL ANTENNA TERMINAL AM LOOP ANTENNA Accessory AM LOOP ANTENNA 60cm DIGITAL MILLIVOLT METER VT_J911 FM SIGNAL GENERATOR AM SIGNAL GENERATOR FM SIGNAL GEN...

Страница 11: ...Channel L or R 1kHz 99 0MHz Oscilloscope R941 Maximum separation Repeat stereo distortion and stereo separation alignment until THD at minimum and separation at maximum Distortion Meter Minimum Mute...

Страница 12: ...18 J19 J20 J21 J26 J27 J28 J29 J30 J31 J32 J33 J34 J35 J36 J37 J38 M210 J202A J2 J3 C202 C201 C212 C213 C211 C210 R222 R221 R220 R219 Q201 R227 R216 R215 J263 R210 R211 J264 R225 D206 J265 J270 J262 R...

Страница 13: ...J950 R946 J949 C911 C944 R945 C945 J941 C932 C969 C979 C981 C982 C978 C977 C976 C975 C974 C971 C973 C927 C912 Q922 C913 Q923 C902 C903 C926 C928 C929 Q902 C901 Q901 C904 Q903 C914 C915 C930 C931 C925...

Страница 14: ...14 MAIN BOARD Bottom side 1 8 9 16 1 14 15 28 1 7 8 14 1 8 9 16...

Страница 15: ...24 P0 3 23 P0 4 22 P0 5 21 VDD 20 P0 6 19 P0 7 17 P1 1 18 P1 0 16 P2 5 15 P2 4 U201 P89LCP936 C223 100u C222 104K R215 470R R216 470R R219 680R R220 820R R221 1K8 R222 680R 49 LED2 50 LED1 51 GND 52...

Страница 16: ...3 0R M985 4 332MHz C989 30P NPO C988 30p NPO C985 561 C987 223Z C986 6V3 100u C990 6V3 100u R987 1K R986 1K R985 1K L985 100uH R953 22K R952 22K R922 1K R921 1K C925 20P NPO C924 20P NPO R923 1K C930...

Страница 17: ...100u C401 223K 1 2 3 4 5 6 7 8 J401 C419 10V 47u B C E Q403 8050 D412 10V C421 16V 47u R404 1K AC INPUT IN GND OUT U402 78M05 R418 47K D101 1N4007 D102 1N4007 D103 1N4007 D104 1N4007 C102 400V 4 7U L1...

Страница 18: ...ing Circuit Grid Driver Segment Driver Grid Driver Key Scan Output Control Dispaly Memory Timing Generator Key Matrix Memory SG2 KS2 SG3 KS3 SG4 KS4 SG5 KS5 SG6 KS6 SG7 KS7 SG8 KS8 SG9 KS9 SG10 KS10 S...

Страница 19: ...R AND OSCILLATOR TIMER 0 TIMER 1 REAL TIME CLOCK SYSTEM TIMER SPI ADC1 DAC1 ADC0 DAC0 P89LPC935 936 P3 1 0 P2 7 0 P1 7 0 P0 7 0 X2 X1 TXD RXD SCL SDA T0 T1 CMP2 CIN2B CIN2A CMP1 CIN1A CIN1B OCA OCB OC...

Страница 20: ...3 12 11 10 9 8 1A 1B 1Y 2A 2B 2Y GND VCC 4B 4A 4Y 3B 3A 3Y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 ALC AM OSC AM MIX AM RF AMP REG AGC AM IF AM S METER TUNING...

Страница 21: ...TEST 57kHz BPF SCF SMOOTHING FILTER OSC CLK 4 332MHz 9 XIN 8 XOUT RDS ID DETECT RAM 128bits 21 22 16 15 20 23 8 7 17 14 13 12 11 10 9 5 4 3 2 18 19 24 1 6 XIN FMIN AMIN CE DI CL D0 OUT0 OUT1 XOUT PHA...

Страница 22: ...4 V 18 k Error flag armed EMI Jittering VCC Startup Source Drain Flip Flop DCmax 65 Reset Reset High when VCC 3 V Driver S Q R Iref 7 4 mA IVCC Set Q VCC 8 Rsense 250 ns L E B 7 5 Soft Start Startup...

Страница 23: ...STOR Q201 485C 114E K TR DTC114ES RLT RESISTOR R221 4705 182J C RCF 1 4W 1 8K 5 ATS R219 R222 4705 681J C RCF 1 4W 680R 5 ATS R220 R252 4705 821J C RCF 1 4W 820R 5 ATS R210 R211 4711 151A 2 RMF 1 8W 1...

Страница 24: ...04 SVC C42626 LED PCB ASSY LED EU CA PC BOARD 1006 1726 042A 000B PCB MAIN KEY DIS PSU LED WAFER SOCKET J203B2 2102 040R J01 WAFER 4P P2 0 90DEG MISCELLANEOUS D209 3700 2858 AB LED SP 5X5XL0 5 AM BU M...

Страница 25: ...RLT 5x5 C707 153F 102J K IM CM 50V 1000P 5 RLT 5x7 C708 150F 104K K II CC 50V 0 1U 10 RLT 5x5 C709 157D 477M K OVE CE 16V 470U 20 RLT C901 EU 150F 223K 2 FD CC 50V 0 022uF 10 AT C902 C903 150F 223K 2...

Страница 26: ...C970 150F 223K 2 FD CC 50V 0 022uF 10 AT C971 15CH 080D 5 GG CTC 0 60 8pF 0 5pF RL C973 153I 473J V NLM CM 63V 0 047U 5 RBT 7 2 C974 150F 223K 2 FD CC 50V 0 022uF 10 AT C975 157D 106M K IU CE 16V 10U...

Страница 27: ...P2 5 RIGHT J401B 2102 081S 004 WAFER 8P P2 5 ST O205 EU 2107 0681 0 ANT TERMINAL DIN TYPE O205 CA 2107 0641 0 ANT TERMINAL F TYPE JACK SOCKET M303 2113 1179 0 PHONE JACK D3 5 BK M987 2113 1300 0 2P R...

Страница 28: ...1 8W 2 7K 1 AT R906 4701 103J 2 RCF 1 8W 10K 5 AT R912 4701 101J 2 RCF 1 8W 100R 5 AT R915 4701 103J 2 RCF 1 8W 10K 5 AT R927 4701 103J 2 RCF 1 8W 10K 5 AT R944 4701 104J 2 RCF 1 8W 100K 5 AT R945 470...

Страница 29: ...05 563J C RCF 1 4W 56K 5 ATS R975 CA 4705 243J C RCF 1 4W 24K 5 ATS R959 R960 EU 4701 274J 2 RCF 1 8W 270K 5 AT R959 R960 CA 4705 124J C RCF 1 4W 120K 5 ATS IC U201 3132 3561 0 IC MCU 16K FLASH P89 U2...

Страница 30: ...2 C103 157T 475M 5 S5T CE 400V 4 7U 20 RL C104 8910 0091 0 CC 400V 0 01UF 20 RL C105 157D 106M K IUE CE 16V 10U 20 RLT 5X11 C106 157Q 476M K LUTU CE 35V 47U 20 RLT C107 C110 157D 477M K OVE CE 16V 470...

Страница 31: ...R102 4718 104J 2 RMF 1W 100K 5 AT R103 4715 152A 2 RMF 1 4W 1 5K 1 AT R106 4711 203A 2 RMF 1 8W 20K 1 AT R108 EU 4717 335J 2 S1 RMF 1 2W 3 3M 5 AT R301 4701 101J 2 RCF 1 8W 100R 5 AT R104 4705 102J C...

Страница 32: ...32 EXPLODED VIEW X2 15 14 13 X5 X4 11 4 X10 26 3 X10 1 2 30 X4 27 28 24 X2 25 9 10 24 23 5 29 7 6 X4 12 22 21 X5 19 X4 20 18 16 17 30 14X2 8 31...

Страница 33: ...402 3534 0 COVER TOP SECC BLACK 1 1402 3532 0 TOP COVER SILVER 1 18 2900 4006 2010 M4X6 TITANNIUM VERSION 4 2900 4006 3010 M4X6 GREY VERSION 4 19 2954 3010 4000 SCREW M3X10 TITANNIUM VERSION 1 2954 30...

Страница 34: ...0021 0 CD MANUAL 1 5 1497 7492 0 POLYBAG 600X600X0 04MM 1 6 4201 0010 0 NON WOVEN CLOTH BAG 1 7 2107 0661 1 300 OHM T ANTENNA 1 8 2107 1131 0 NMA 3057 AM LOOP ANTENNA 1 9 4060 0530 0 GREENCELL 3A SIZ...

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