Sangean WR-11 User manual

Rev.C: IC LA1805 end of life
Date:2014/6/10
WR-11
2 Bands Radio Receiver
CONTENTS
Specification 2-5
Block Diagram 6
Main PCB Top View 7
Main PCB Bottom View 8
PCB-P Top View 9
PCB-P Bottom View 10
Wiring Diagram 11
Troubleshooting Flow Chart 12-14
Electrical Parts List 15-17
Mechanical Parts List 18-19
Exploded Views 20
IC Circuit Block Diagram 21-25
Semiconductor Lead Identifications 26
IC and Transistor Voltage Chart 27-29
All Schematic Diagram 30

Specification
FM. ELECTRICAL PERFORMANCE
Model：WR-11(FCC) Brand：SANGEAN
Temp：25∘C R.H：75% Date：2014/5/26
Condition Value
Test Item Input Output freq Nom. Lim. Unit
S/N=6dB Min 87.5 88
Tuning Range S/N=6dB Max 108.2 108
MHz
90 8 14
98 8 14
Max. Sensitivity S/N=6dB
106 8 14
dBμ
90 15 21
98 15 21
Usable Sensitivity S/N=30dB
106 15 21
dBμ
Stereo Ind. Sens.
75K DEV 106MHz dB
Stereo Separation(1KHz)
75K DEV (PILOT ON) 98MHz dB
3db Limiting(1mV) 98MHz 8 14 dBμ
Min. output 60dBμ98MHz 0.5 2 mv
Tuning Indicator Sens. 98MHz 16 22
Auto Tuning Stop Sens. 98MHz dBμ
Current Consumption 60dBμ
Rated output
98MHz 200 300 mA
S/N Ratio 60dBμ98MHz 50 44 dB
Am. suppression 60dBμ98MHz 46 30 dB
Speaker8Ω6.5 6 W
Output Power
Mod. 75kHz@100Hz Load 32Ω10% THD 98MHz 5+5 3+3 mW
T.H.D. (75KHz dev.) R.O. 98MHz 1 3 %
90M
96M
Calibration S/N=6dB
104M
±1000 KHZ
Over load capacity 10% THD 98MHz >106 dBμ
50 30 HZ
Audio-fidelity-3dB
(W/Pre-emphasis)50uS
CE-VERSION(CE-Europe)
60dBμ98MHz 15K 12K HZ
50 30 HZ
Audio-fidelity-3dB
(W/Pre-emphasis)75uS
US-VERSION(FCC-USA)
60dBμ98MHz 15K 12K HZ
REC OUT LEVEL
FM DEV=22.5KHZ 60dBμ@1KHZ 98MHz 130 +80/-40 mV
Supply Voltage：
AC120V/60Hz(USA) R.O：50mW Load：8 Ohm
Modulation：Dev.22.5kHz@1KHz
Remark：REC out Load =10Kohm
USA - Test output power to the
speaker load
Approved by：Released / Tested by：
2

Specification
AM ELECTRICAL PERFORMANCE
Model：WR-11(FCC) Brand：SANGEAN
Temp：25∘C R.H：75% Date：2014/5/26
Condition Value
Test Item Input Output freq Nom. Lim. Unit
S/N=6dB Min. 520 525
Tuning Range S/N=6dB Max. 1730 1715
kHz
603/600 k 48 54
999/1000k 48 54
Max. Sensitivity S/N=6dB
1404/1400k 46 52
dBμ/m
603/600 k 52 58
999/1000k 50 56
Usable Sensitivity S/N=
20dB
1404/1400k 50 56
dBμ/m
600k 18 24 dBμ
1000k 18 24 dBμ
AM EXT. ANT
Usable Sensitivity
(USA/Tw Only)
S/N=
20dB 1400k 18 24 dBμ
T. H. D. 74dBu/m R.O 1 3 %
Auto Tuning Stop Sens. dBμ
Tuning Indicator Sens. 40 50 dB
S/N Ratio 74dBu/m 38 32 dB
Current Consumption R.O 200 300 mA
100 Hz
Audiofidelity
(-6dB) 1K=0dB 2 KHz
Output power
Mod 80% @ 100Hz 94dBμ/m 10%THD 6.5 6 W
Over Load Capacity 80% 10%THD 100 >90 dBμ/m
A. G. C. F. O. M. 100dBμ/m
999/1000
KHZ
50 40 dB
700 ±60
1200 ±60
Callbration
1700 ±60
Whistle Modulation 74dBu/m
Supply Voltage：
AC120V/60Hz(USA) R.O：50mW Load：8 Ohm
Modulation：Dev.30% @400Hz
Remark：USA Test output power to
the speaker load
Approved by：Released / Tested by：
3

Specification
AUX-IN ELECTRICAL PERFORMANCE
Model：WR-11(FCC) Brand：SANGEAN
Temp：25∘C R.H：75% Date：2014/5/26
Value
Test Item Condition Nom. Lim. Unit
Output Power AUX IN=0.5V/100Hz
THD=10% 6.5 6 W
AUX IN
Dynamic Range
Output=R.0 /THD=<3%
AUX IN=100Hz 1.2 1 Vrms
I/S (Input Sensitivity)
AUX IN=100Hz
OUTPUT @ THD 10%
Volume=MAX
320 ±50 mV
0.1 <0.4 %
DISTORTION AUX IN =I/S 1KHz
OUT=R.O
MIN OUTPUT AUX IN =I/S 1KHz
Volume=MIN 0.5 <2 mV
S/N RATIO AUX IN =I/S 1KHz&GND
OUT=R.O (weighted DIN audio) 60 52 dB
100HZ 10 8
Frequency Response AUX IN=0.5V/1KHz
OUT=50mW=1kHz=0db 10KHZ 4 2
dB
REC OUT LEVEL AUX IN=(-10dB)300mV@1khz 310 ±80 mV
Supply Voltage：
AC 120V/60Hz(USA) R.O：50mW Load：8-OHM
Remark：REC out Load =10Kohm
USA - Test output power to the
speaker load
Approved by：Released / Tested by：
4

Specification
BLUETOOTH ELECTRICAL PERFORMANCE
Model：WR-11(FCC) Brand：SANGEAN
Temp：25∘C R.H：75% Date：2014/5/26
Value
Test Item Condition Nom. Lim. Unit
Transferring distance Directive distance >10 m
access time for link <15 Sec
100Hz 7 5 dB
Playing Frequency Response
MP3 1KHz 0dB
128kbps
Output = 50mW 10KHz 4 2 dB
S/N Ratio MP3 1KHz 0dB 128kbps
weighted- DIN audio;@500mW 70 60 dB
THD Of Playing MP3 1KHz 0dB 128kbps
weighted- DIN audio; @500mW <1 %
Current Consumption MP3 1kHz 0dB 128kbps
Output = R.O=@500mW 330 400 mA
Output power MP3 1kHz 0dB 128kbps
T.H.D. = 10% 6.5 6 W
REC OUT LEVEL MP3 1kHz 0dB 128kbps 920 ±150 mV
Supply Voltage：
AC120V/60Hz(USA) R.O：500mW Load：8Ω
Remark：USA - Test output power to
the speaker load
No Bluetooth feature, this page
without testing
REC out Load =10Koh
Approved by：Released / Tested by：
5

L R
SP1 8Ω
AM ANT L2
F-Terminal FM RF IN
RESET IC IC5
VCC-8V
VCC-3V3
VCC-8V
BACKLIGHT LED500-502
Q1 TUNINGLED CONTROL
L R
AUDIO
VCC-8V
REG2 IC4 XC62FP200
Bluetooth vcc-control Q20,21,22
REG3V3 IC2 LD1117AL
POWER SW Q400 , 401
TO-IC400
Q23 BT LED CONTROL
Volume VR200
AUX_IN JACK
AUDIO-OUTPUT
AUDIO-L/R
AM/FM SWITCH IC3-T4066 Band Switch
SW200
TUNER IC IC1-SI4835
AUDIO SWITCH IC21-TC7W53FU
TUNING VR VR2
Bluetooth-MD OP-AMP-IC20
UTC2115M
REC_OUT JACK
Headphone JACK
POWER AMP IC400-TDA7266SA
AC IN JACK 120V or 230V
DC IN JACK-12V
PT300 & Rectifier
Reg. 8V IC402
AM LED 503 FM LED 504 BT LED 506
EQ AMP-IC401 UTC4580
BLOCK DIAGRAM
6

MAIN PCB TOP VIEW
7

MAIN PCB BOTTOM VIEW
8

PCB-P TOP VIEW
9

PCB-P BOTTOM VIEW
10