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ST-SE370

11

11

5-3.

SCHEMATIC  DIAGRAM  – MAIN Section –

 See page 9 for Waveform.

 See page 14 for IC Block Diagram.

R904

R303

R310

R903

CNP951

C352

C351

L351

R908

R910

R909

R907

R906

R905

C906

C909

D904

D

9

03

C903

C904

C908

R902

D907

C907

C911

D908

R804

D902

D901

C901

C902

C951

CNP901

JW902

JW901

CN951

CNP701

C910

R901

R805

R803

X801

C806

C

807

C803

R802

C802

C805

C801

C804

C808

R801

C201

C202

C

203

R202

C207

RV201

C204

C206

C205

C102

C101

CNP702

C301

C319

R301

R306

C304

C303

R305

R304

R302

C302

R308

C306

JW302

C308

C307

IC301(2/2)

R309

R311

R312

R321

Q301

L352

R352

R351

JW305

JW303

JW301

R307

CN101

J301

PT901

PC901

S901

JW306

JW304

Q302

R319

R320

Q801

C104

C103

R105

R104

R201

C305

TB101

IC301(1/2)

D906

D

905

IC201

IC801

Q901

C905

IC901

EP901

R900

47k

100k

470

100k

2P

1000p

1000p

470

470

470

470

470

470

220
50V

47

16V

11ES2

11E

S2

47

50V

47

50V

10

50V

47k

11ES2

470

6.3V

0.47

50V

1SS133

220

11ES2

11ES2

0.01

0.01

1000p

250V

2P

2P

9P

10

50V

47k

100

2.2k

4.332MHz

82p

47p

0.01

47

47

16V

560p

0.01

0.01

2.2
50V

10k

330p

0.01

0.01

100

0.1
50V

22k

0.01

0.01

47

16V

10

50V

0.01

8P

4.7
50V

220
16V

100k

10k

10

50V

10

50V

10k

100k

100k

4.7
50V

4.7k

100p

4.7
50V

4.7
50V

NJM4558D

470

1k

1k

10

2SD2144S

47k

47k

4.7k

15P

2SD2144S

100

100

2SC1740S

10

50V

0.01

10k

10k

470

100p

NJM4558D

MTZJ-T-72-6.2

M

TZJ-T-72-3

0

LA1235

BU1924

BLIN4M

2200

35V

LA5667

3.3M
1/2W

A1

A2

A3

A4

A1

A4

Z1

Z2

Z1

Z2

A2

A3

+5V

GND

POWER

CLK

DATA

D-IN

RDS-C

-30V

CE

ST

AST

MUTE

EON

G

G

(CHASSIS)

230V

120V

100V

OR

0V

(CHASSIS)

QUAL

RDDA

IN

VDD

VDD

RDCL

TEST

MODE

IFIN

MUTE

VCC

SIG.

GND

RESET

5V-IN

+5V

+13V-IN

+13V

L

R

LINE OUT

* NOT REPLACEABLE:

BUILT IN TRANSFORMER

TRANSFORMER

POWER

(US)

(EXCEPT US)

(US)

AC IN

POWER

(EXCEPT AEP,UK)

(AEP,UK)

(AEP,UK)

(EXCEPT AEP,UK)

MUTING

MUTING

LINE AMP

(AEP,UK)

(EXCEPT AEP,UK)

(EXCEPT AEP,UK)

(AEP,UK)

MUTING

SWITCH

+5V,+13V

REGULATOR

MUTE

NULL

LIMITER

RDS

DECODER

SWITCH

FM DET

FM SIGNAL

DETECTOR

THE ASSEMBLED

BLOCK

(

(

SUPPLIED WITH

(CHASSIS)

AM

FM

75

COAXIAL

ANTENNA

SCOUT

CIN

VSSA

VREF

VSSD

TS7

OSCO

OSCI

FL2

FL1

SIGNAL

RDS-DATA

10

µ

H

10

µ

H

(Page 13)

(Page 13)

w w w . x i a o y u 1 6 3 . c o m

Q Q 3 7 6 3 1 5 1 5 0

9

9

2

8

9

4

2

9

8

T E L

1 3 9 4 2 2 9 6 5 1 3

9

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

Q

TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for ST-SE370 - Tuner

Page 1: ...1 1 602 kHz 9 kHz step LW 144 288 kHz 1 kHz step Intermediate frequency 450 kHz Usable Sensitivity with AM loop aerial MW 200 µV m LW 700 µV m Signal to noise ratio MW 54 dB 50 mV m 999 kHz LW 50 dB 50 mV m 216 kHz Harmonic distortion 0 3 50 mV m 400 Hz Selectivity 50 dB General Power requirements U S models 120 V AC 60 Hz Australian models 230 V AC 50 Hz Other models 230 V AC 50 60 Hz Power consu...

Page 2: ...l parts for AC leakage Check leakage as described below LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis must not exceed 0 5 mA 500 microamperes Leakage current can be measured by any one of three methods 1 A commercial leakage tester such as the Simpson 229 or RCA WT 540A Follow the manufa...

Page 3: ...ER 1 7 8 12 PTY European model only qg 14 15 RETURN 7 9 SHIFT qa 8 11 TUNE MODE 6 8 10 TUNING SELECT 4 7 12 14 1 2 3 4 5 6 7 8 9 0 1 23 5 6 4 7 8 9 0 qa qs qd qf qg qh 1 FM ANTENNA terminal 2 AM ANTENNA terminal 3 LINE OUT jack Rear Panel ANTENNA LINE OUT FM U 75Ω COAXIAL R L AM 2 1 3 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 139422...

Page 4: ...2 CASE 407026 2 2 CASE 407026 Page 4 2 3 MAIN BOARD Page 5 SET 1 two screws case 3 TP2 2 two screws case 3 TP2 3 three screws case 3 TP2 4 case 407026 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ...01 1 wire flat type 15 core CN101 3 screw BV RING 3 screw BVTP3 8 S 4 screw BVTT3 6 S www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 6: ...R 3 Circuit Check Mode Set to the reception frequency that the circuit can receive FM STEREO RDS stations Set the input level to above 70 dB This enables circuit check to be performed in any of the reception modes FM AM MW LW Set to a desired band before setting the test mode 1 Turn OFF the power 2 While pressing 4 and BAND together turn ON POWER The items in the following table will be checked au...

Page 7: ... Change over of AM Tuner Step between 9 kHz and 10 kHz US model only A step of AM channels can be changed over between 9 kHz and 10 kHz 1 Turn OFF the power 2 While pressing 9 or turn ON POWER www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com ht...

Page 8: ...justment Location MAIN BOARD Component Side FM RF signal generator set FM ANTENNA 75 Ω coaxial TB101 Carrier frequency 98 MHz Modulation 1 kHz 40 kHz deviation Output level 6 3 mV 76dBµ 75 Ω open IC201 CN101 RV201 FM SIGNAL LEVEL Adjustment www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 ...

Page 9: ...ditions no mark FM Can not be measured Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F FM Note The components identified by mark 0 or dotted line with mark 0 are critical...

Page 10: ...ILT IN TRANSFORMER POWER TRANSFORMER 9 8 A DISPLAY BOARD CN702 B DISPLAY BOARD CN701 1 7 E E 1 8 16 9 1 8 16 9 1 4 8 5 AEP UK EXCEPT AEP UK E E EXCEPT AEP UK AEP UK EXCEPT AEP UK EXCEPT AEP UK L R LINE OUT 1 681 063 11 11 75Ω COAXIAL AM FM TUNER PACK SUPPLIED WITH THE ASSEMBLED BLOCK ANTENNA AEP UK A B C D E 1 2 3 4 5 6 7 8 9 10 TB101 Page 12 Page 12 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1...

Page 11: ...k 0 01 0 01 47 16V 10 50V 0 01 8P 4 7 50V 220 16V 100k 10k 10 50V 10 50V 10k 100k 100k 4 7 50V 4 7k 100p 4 7 50V 4 7 50V NJM4558D 470 1k 1k 10 2SD2144S 47k 47k 4 7k 15P 2SD2144S 100 100 2SC1740S 10 50V 0 01 10k 10k 470 100p NJM4558D MTZJ T 72 6 2 MTZJ T 72 30 LA1235 BU1924 BLIN4M 2200 35V LA5667 3 3M 1 2W A1 A2 A3 A4 A1 A4 Z1 Z2 Z1 Z2 A2 A3 5V GND POWER CLK DATA D IN RDS C 30V CE ST AST MUTE EON G...

Page 12: ...FM MODE BAND PTY 1 681 064 11 11 S701 715 717 718 721 724 727 728 ENCODER BOARD 1 681 065 11 11 TUNING SELECT 1 3 1 2 3 SW BOARD 1 681 066 11 11 4 1 MENU RETURN TUNE MODE CHARACTER A B C D E 1 2 3 4 5 6 7 8 9 10 11 12 EXCEPT SP AUS EXCEPT US US SP AUS EXCEPT AEP UK AEP UK EXCEPT AEP UK AUTO BETICAL SELECT AEP UK 1 80 40 25 Page 10 Page 10 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8...

Page 13: ...15 P16 P17 P18 G1 P1 G1 Z1 Z2 Z3 Z4 Z5 Z6 Z1 Z2 Z3 Z4 Z5 Z6 Z6 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Z7 Z8 Z7 Z8 G11 G10 G9 G8 P1 P18 P17 P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 RDS DATA VDD PLL DATA OUT AVDD AVREF GND NC GND X1 X2 VDD VFL FL2 FL1 MUTE POWER AST ST 5V GND IC IS1 IS2 IS3 IS4 AVSS GND GND NC NC NC NC NC NC NC NC NC NC KEY2 DC CUT NC EON KEY1 SI NC RDS DATA RDS CLK RE...

Page 14: ...sed fixed at L 25 EON EON output control terminal Not used open 26 KEY1 I Key input terminal A D input 27 KEY2 I Key input terminal A D input 28 SI I Signal input terminal 29 AVDD Analog power supply terminal 5V 30 AVREF Reference voltage input terminal 5V 31 GND Ground terminal 32 NC Not used open 33 GND Ground terminal 34 X1 I Main system clock input terminal 4 19MHz 35 X2 O Main system clock ou...

Page 15: ...dardized parts so they may have some difference from the original one Color Indication of Appearance Parts Example KNOB BALANCE WHITE RED Parts Color Cabinet s Color Ref No Part No Description Remark Ref No Part No Description Remark 2 4 232 149 11 CASE 407026 BLACK 2 4 232 580 11 CASE 407026 SILVER 3 4 210 291 01 SCREW CASE 3 TP2 BLACK 3 4 210 291 11 SCREW CASE 3 TP2 SILVER 4 X 4953 448 1 FOOT AS...

Page 16: ...3 4 231 973 11 BUTTON POWER SILVER 54 1 681 067 11 AC SW BOARD 55 4 951 620 01 SCREW 2 6X8 BVTP 56 A 4476 428 A DISPLAY BOARD COMPLETE AEP UK 56 A 4476 434 A DISPLAY BOARD COMPLETE US 56 A 4476 437 A DISPLAY BOARD COMPLETE SP AUS 57 1 681 065 11 ENCORDER BOARD 58 1 681 066 11 SW BOARD 51 52 53 supplied with RV701 54 55 55 56 57 58 55 55 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 139422965...

Page 17: ...RD POWER AUS 0106 1 783 531 31 CORD POWER US 107 4 233 386 01 PANEL BACK AEP SP 107 4 233 386 11 PANEL BACK UK 107 4 233 386 21 PANEL BACK US 107 4 233 386 31 PANEL BACK AUS 108 1 773 002 11 WIRE FLAT TYPE 15 CORE 0PT901 1 429 466 11 TRANSFORMER POWER US 0PT901 1 429 467 11 TRANSFORMER POWER EXCEPT US TB101 1 693 407 23 TUNER US TB101 1 693 410 25 TUNER PACK EXCEPT US 1 7 685 646 79 SCREW BVTP 3X8...

Page 18: ...UCTORS In each case u µ for example uA µA uPA µPA uPB µPB uPC µPC uPD µPD CAPACITORS uF µF COILS uH µH The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified When indicating parts by reference number please include the board FILTER FL701 1 517 516 11 INDICATOR TUBE FLUORESCENT IC IC701 8 759 834 92 IC uPD78045FGF 130 3B9 IC702...

Page 19: ... ENCODER BOARD VARIABLE RESISTOR RV701 1 467 703 11 ENCODER ROTARY TUNING SELECT A 4476 427 A MAIN BOARD COMPLETE AEP UK A 4476 433 A MAIN BOARD COMPLETE US A 4476 436 A MAIN BOARD COMPLETE AUS A 4476 439 A MAIN BOARD COMPLETE SP 7 685 647 79 SCREW BVTP 3X10 TYPE2 IT 3 CAPACITOR C101 1 127 876 11 CERAMIC 0 01uF 10 50V C102 1 126 964 11 ELECT 10uF 20 50V C103 1 127 876 11 CERAMIC 0 01uF 10 50V C104...

Page 20: ...49 441 11 CARBON 100K 5 1 4W AEP UK R303 1 249 441 11 CARBON 100K 5 1 4W AEP UK R304 1 249 441 11 CARBON 100K 5 1 4W AEP UK R305 1 249 429 11 CARBON 10K 5 1 4W AEP UK R306 1 249 429 11 CARBON 10K 5 1 4W AEP UK R307 1 249 425 11 CARBON 4 7K 5 1 4W AEP UK R308 1 249 425 11 CARBON 4 7K 5 1 4W AEP UK R309 1 249 413 11 CARBON 470 5 1 4W R310 1 249 413 11 CARBON 470 5 1 4W R311 1 249 417 11 CARBON 1K 5 ...

Page 21: ...EPT US ACCESSORIES PACKING MATERIALS 1 501 374 11 ANTENNA LOOP AM 1 501 659 41 ANTENNA FM 0 1 770 019 11 ADAPTOR CONVERSION PLUG 3P UK 1 776 263 11 CORD CONNECTION AUDIO CORD 4 233 395 11 MANUAL INSTRUCTION ENGLISH 4 233 395 21 MANUAL INSTRUCTION FRENCH GERMAN SPANISH DUTCH AEP 4 233 395 31 MANUAL INSTRUCTION SWEDISH ITALIAN POLISH AEP 4 233 395 41 MANUAL INSTRUCTION DANISH FINNISH AEP 4 233 395 5...

Page 22: ...he revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2001 04 New www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

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