Sangean WR-2 Manual de usuario

WR-2

FM RDS/AM PLL SYNTHESIZED

RECEIVER

CONTENTS

Specification ………………………………………………………………………………………………………2-8

Block Diagram ………………………………………………………………………………………………………9

Alignment Instructions……………………………………………………………………………………………10-15

Test Points Diagram…………………………………………………………………………….……….……………16

Main PCB Top View…………………………………………………………………………….……….……………17

Main PCB Bottom View.………………………………………………………………………….……..………..…..18

Control PCB Top View……………………………………………………………………………….………….……19

Control PCB Bottom View……………………………………………………………………………………………20

Wiring Diagram..….………………………………………….………………….….……………..……….21

Troubleshooting Flow Chart..….………………………………………….……………….….……………..……22

Electrical Parts List………………………………………………………………………………....……………23-26

Mechanical Parts List………………………………………………………………….………….…………….27-28

Exploded Views.…………………………………………………………………………….…………….……………29

IC Circuit Block Diagram…………………………………………..…………….………………………………30-37

IC and Transistor Voltage Chart….……………………………..…………………………….…………………38-41

Semiconductor Lead Identifications……………………………………………………………………..……..…42

Main Schematic Diagram………………………………………….…………………………………………………43

Control Schematic Diagram……………………………………….…………………………………………………44

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SPECIFICATION

FM. ELECTRICAL PERFORMANCE

Model: WR-2(CE) Brand: SANGEAN Temp: 25 ℃R. H. : 75 % Date:2005/5/20

Condition Value Test No.

Test Item Input Output freq Nom. Lim. 1. 2. Unit

S/N=6dB Min 87.5 ±0.1

Tuning Range S/N=6dB Max 108 ±0.1

MHz

Intermediate freq. S/N=6dB 10.7

±0.1

MHz

90 6 12

98 6 12

Max. Sensitivity S/N=6dB 106 6 12

dBμ

90 12 22

98 12 22

Usable Sensitivity S/N=30dB 106 12 22 dBμ

Image Rejection 127.4MHz R.O. 106 32 26

I.F. Rejection 10.7MHz S/N=6dB 90MHz 60 50 dB

3db Limiting(1mV) 98MHz 10 16 dBμ

Min. output 60dBμ98MHz 0.5 3 mv

Auto Tuning Stop Sens. 98MHz 20 26 dBμ

Current consumption 60dBμ98MHz 320 *400 mA

Spurious rejection 103.35MHz

Rated

output

98MHz 90 50 dB

S/N Ratio 60dBμDIN Audio 98MHz 50 40 dB

Am. suppression 60dBμ98MHz 46 30

Speaker8Ω98MHz 7 6

Mod75kHz

**Output Power 100Hz Load 32Ω10% THD 5+5 2+2 mW

T.H.D. (45KHz dev.) R.O. 98MHz 0.2 1 %

Over load capacity 10% THD 98MHz >106

dBμ

100 LOW 8 6

VR=MAX 10K HIGH 8 6

100 LOW 10 8

Audio Fidelity(1K=0dB)

(W/Pre-emphasis)50uS

100/1K 10K/1K VR=5mW 10K HIGH 8 6

Supply Voltage: AC 230V/50Hz R.O：50mW Load: 8 Ohm Modulation: Dev.22.5kHz @400Hz

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*Current consumption at light on and position is max

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SPECIFICATION

FM. ELECTRICAL PERFORMANCE

Model: WR-2(USA) Brand: SANGEAN Temp: 25 ℃R. H. : 75 % Date: 2005/5/20

Condition Value Test No.

Test Item Input Output freq Nom. Lim. 1. 2. Unit

S/N=6dB Min 87.5 ±0.1

Tuning Range S/N=6dB Max 108 ±0.1

MHz

Intermediate freq. S/N=6dB 10.7

±0.1

MHz

90 6 12

98 6 12

Max. Sensitivity S/N=6dB 106 6 12

dBμ

90 12 22

98 12 22

Usable Sensitivity S/N=30dB 106 12 22 dBμ

Image Rejection 127.4MHz R.O. 106 32 26

I.F. Rejection 10.7MHz S/N=6dB 90MHz 60 50 dB

3db Limiting(1mV) 98MHz 10 16 dBμ

Min. output 60dBμ98MHz 0.5 3 mv

Auto Tuning Stop Sens. 98.1MHz 20 26

dBμ

Current consumption 60dBμ98MHz 320 *400 mA

Spurious rejection 103.35MHz

Rated

output

98MHz 90 50 dB

S/N Ratio 60dBμDIN Audio 98MHz 50 40 dB

Am. suppression 60dBμ98MHz 46 30

Speaker8Ω98MHz 7 6

Mod75kHz

**Output Power 100Hz Load 32Ω10% THD 5+5 2+2 mW

T.H.D. (45KHz dev.) R.O. 98MHz 0.2 1 %

Over load capacity 10% THD 98MHz >106

dBμ

100 LOW 7 5

VR=MAX 10K HIGH 8 6

100 LOW 8 6

Audio Fidelity(1K=0dB)

(W/Pre-emphasis)75uS

100/1K 10K/1K VR=5mW 10K HIGH 8 6

Supply Voltage: AC 120V/60Hz R.O：50mW Load: 8 Ohm Modulation: Dev.22.5kHz @400Hz

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SPECIFICATION

MW ELECTRICAL PERFORMANCE

Model: WR-2(CE) Brand: SANGEAN Temp: 25 ℃R. H. : 75 % Date:2005/5/20

Condition Value Test No.

Test Item Input Output Freq. Nom. Lim. 1. 2. Unit

S/N=6dB Min. 522 ±1

Tuning Range S/N=6dB Max. 1629 ±1

kHz

Intermediate freq. S/N=6dB 450

±1

kHz

603 kHz 44 54

999 kHz 42 54

Max. Sensitivity S/N=6dB 1404kHz 40 48

dBμ/m

603 kHz 54 60

999 kHz 52 60

Usable Sensitivity S/N=20dB 1404kHz 48 56

dBμ/m

Image Rejection S/N=6dB 1404kHz 36 30

I. F. Rejection (450KHz) S/N=6dB 603 kHz 60 50

Selectivity(±10KHz) S/N=6dB 1404kHz 26 20

Bandwidth(-6dB) S/N=6dB 7 +-3

KHz

T. H. D. ( 5mV ) R.O 2 4 %

Auto Tuning Stop Sens. 59 66 dBμ/m

S/N Ratio (RF 5mV) 32

Current Consumption R.O 320 *400 mA

100

Audiofidelity

(-6dB) 1K=0dB 2

KHz

**Output power Mod 80%

at100Hz 94dBμ/m 10%THD 5

Over Load Capacity 80% 10%THD 100 >90

dBμ/m

A. G. C. F. O. M. 100dBμ/m

999kHz

50 40

Whistle Modulation(5mV/M) 74dBμ/m 2IF/3IF <15

Supply Voltage: AC 230 V/50Hz R.O：50mW Load: 8 Ohm Modulation: Dev.30% @400Hz

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SPECIFICATION

MW ELECTRICAL PERFORMANCE

Model: WR-2(UK) Brand: SANGEAN Temp: 25 ℃R. H. : 75 % Date:2005/5/20

Condition Value Test No.

Test Item Input Output Freq. Nom. Lim. 1. 2. Unit

S/N=6dB Min. 522 ±1

Tuning Range S/N=6dB Max. 1629 ±1

kHz

Intermediate freq. S/N=6dB 450

±1

kHz

603 kHz 44 54

999 kHz 42 54

Max. Sensitivity S/N=6dB 1404kHz 40 48

dBμ/m

603 kHz 54 60

999 kHz 52 60

Usable Sensitivity S/N=20dB 1404kHz 48 56

dBμ/m

Image Rejection S/N=6dB 1404kHz 36 30

I. F. Rejection (450KHz) S/N=6dB 603 kHz 55 40

Selectivity(±10KHz) S/N=6dB 1404kHz 26 20

Bandwidth(-6dB) S/N=6dB 7 +-3

KHz

T. H. D. ( 5mV ) R.O 2 4 %

Auto Tuning Stop Sens. 59 66 dBμ/m

S/N Ratio (RF 5mV) 32

Current Consumption R.O 320 *400 mA

100

Audiofidelity

(-6dB) 1K=0dB 2

KHz

**Output power Mod 80%

at 100Hz 94dBμ/m 10%THD 5

Over Load Capacity 80% 10%THD 100 >90

dBμ/m

A. G. C. F. O. M. 100dBμ/m

999kHz

50 40

Whistle Modulation(5mV/M) 74dBμ/m 2IF/3IF <15

Supply Voltage: AC 230 V/50Hz R.O：50mW Load: 8 Ohm Modulation: Dev.30% @400Hz

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SPECIFICATION

AUX-IN ELECTRICAL PERFORMANCE

Model: WR-2(ALL) Brand: ALL Temp: 25 ℃R. H. : 75 % Date: 2005/3/30

Condition Value Test No.

Test Item Input Output Freq. Nom. Lim. 1. 2. Unit

Output Power AUX IN=0.5V/100Hz

THD=10% 8 6

AUX IN

Dynamic Range

Output=R.0 (ATT=0)

THD=1%

AUX IN=100Hz 3 1

Vrms

I/S (Input Sensitivity) AUX IX=100Hz，ATT=0

OUT=7W

Volume=MAX 180 ±30 mV

DISTORTION AUX IN =I/S 1KHz

OUT=R.O 0.07 0.3 %

MIN OUTPUT AUX IN =I/S 1KHz

Volume=MIN 0.7 2

S/N RATIO AUX IN =I/S 1KHz&GND

OUT=R.O 62 50

100 8 6

Frequency Response AUX IN=0.5V/1KHz

OUT=50mW=0dB 10K 6 4

AUX IN =I/S 1KHz 230 ±30

REC OUT LEVEL

(REC OUT IMPD=47K) FM DEV=22.5K@1KHz 120 ±30 mV

ATT1 -3.5 -3

ATT2 -7 -6

AUX ATT AUX=I/S 1KHz

ATT0=0dB

ATT3 -10.5 -9

BASS/TREBLE

CONTROL

AUX_IN=I/S 1KHz

Output=R.0=0dB

BASS@100Hz

Treble@10KHz

BASS

-7 ~ +7 -10~+10 -8~+8 dB

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SPECIFICATION

MW ELECTRICAL PERFORMANCE

Model: WR-2(USA) Brand: SANGEAN Temp: 25 ℃R. H. : 75 % Date: 2005/5/20

Condition Value Test No.

Test Item Input Output Freq. Nom. Lim. 1. 2. Unit

S/N=6dB Min. 520 ±1

Tuning Range S/N=6dB Max. 1710 ±1

kHz

Intermediate freq. S/N=6dB 450

±1

kHz

600 kHz 44 54

1000 kHz 42 54

Max. Sensitivity S/N=6dB 1400kHz 40 48

dBμ/m

600 kHz 54 60

1000 kHz 52 60

Usable Sensitivity S/N=20dB 1400kHz 48 56

dBμ/m

Image Rejection S/N=6dB 1400kHz 36 30

I. F. Rejection (450KHz) S/N=6dB 600 kHz 60 50

Selectivity(±10KHz) S/N=6dB 1400kHz 26 20

Bandwidth(-6dB) S/N=6dB 7 +-3

KHz

T. H. D. ( 5mV ) R.O 2 4 %

Auto Tuning Stop Sens. 59 66 dBμ/m

S/N Ratio (RF 5mV) 32

Current Consumption R.O 320 400 mA

100

Audiofidelity

(-6dB) 1K=0dB 2

KHz

**Output power Mod 80%

at100Hz 94dBμ/m 10%THD 5

Over Load Capacity 80% 10%THD 100 >90

dBμ/m

A. G. C. F. O. M. 100dBμ/m

1000kHz

50 40

Whistle Modulation(5mV/M) 74dBμ/m 2IF/3IF <15

EXTANT Sens S/N=20dB 1400kHz 19 26

dBμ/m

Supply Voltage: AC 120 V/60Hz R.O：50mW Load: 8 Ohm Modulation: Dev.30% @400Hz

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SPECIFICATION

LW ELECTRICAL PERFORMANCE

Model: WR-2(UK) Brand: ROBERTS Temp: 25 ℃R. H. : 75 % Date:2005/3/14

Condition Value Test No.

Test Item Input Output Freq. Nom. Lim. 1. 2. Unit

S/N=6dB Min. 153 ±3

Tuning Range S/N=6dB Max. 279 ±3

KHz

Intermediate freq. S/N=6dB Min 450 ±3

KHz

162KHz 68

225KHz 66

Max. Sensitivity S/N=6dB 270KHz 64

dBμ/m

162KHz 62 68

225KHz 60 66

Usable Sensitivity S/N=20dB 270KHz 60 66

dBμ/m

Image Rejection S/N=6dB 270KHz 30 24

I. F. Rejection S/N=6dB 162KHz 60 50

Selectivity(±10KHz) S/N=6dB 270KHz 26 20

Bandwidth (-6dB) S/N=6dB 6 4-9

KHz

T. H. D. 100dB 30 % 3 5 %

S/N Ratio (5mV) 74dBu/m 32 26 dB

**Output power Mod 80% 94dBu/m 10%T.H.D

225KHz

Supply Voltage: AC 230 V R.O：50mW Load: 8 Ohm Modulation: Dev.30% @400Hz

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613

16 1

AGC

4 12

F-TERMINAL

CF28

AM OSC

L5, D7

AM FIL.

T1, CF1

AM/FM SW.

13 2

IC3

BA09T

IC200

H7805

P.T

IR200

IC201

4V Reg.

JK3

REC_OUT

FM OSC

L1, D1

B.P.F FM TANK

T3, T4, TC3

TC4, D6, D8

FM ANT

FM_ANT

IC8 PT2308

H.P AMP JK200

HEADPHONE

Radio ON

Q206, Q207

IC2 TA2099F

FM IF & AM

AM ANT

POWER SW

Q208, Q209

JK300

Key in

STN LCD

JK1

AUX IN IC4 TDA7313D

AUDIO CONT. IC

IC1

LA1117

FM FRONT

Power SW.

Q1, Q3, Q5

IC7 NJM4580D

SOUND IC

IC203 BU1924F

RDS IC

8 ohm

Speaker

IC202

TC9324F

μ-com

Power SW.

Q11, Q12

VT. CONT.

Q201, Q202

IC5 TDA7266L

Power Amp

BLOCK DIAGRAM

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1. ALIGNMENT FOR AM/LW IF

a. Required Instruments:

AM IF Sweep Generator with scope

b. Alignment Procedure

Mode Adjustment Procedure

(1) Press the power button to turn on the radio.

(2) Connect the input terminal of AM IF sweep generator in series with a

resistor of 1.2k ohm to the TP3 and TP4.

(3) Connect the RF output terminal of AM IF sweep generator to another test

point TP35.

(4) Adjust T1 to have a max. output with a marker frequency of 450 kHz on

AM T1

the sweep scope.

c. Instrument Connection

TP4 TP3

100uF

IN OUT

1.2KΩ

TP3

TP4 TP35

450KHz Marker

AM IF Sweep Generator

ALIGNMENT INSTRUCTIONS

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