Sangean WFR-20 User manual

WFR-20
Wi-Fi Internet Radio
CONTENTS
Specification ………………………………………………………………………………………………………2
Block Diagram ………………………………………………………………………………………………………3
Main PCB Top View…………………………………………………………………………….……….……………4
Main PCB Bottom View.………………………………………………………………………….……..………..…..5
Control PCB Top View…………………………………………………………………………….……….……………6
Control PCB Bottom View.………………………………………………………………………….……..………..…7
Wiring Diagram..….………………………………………….………………….….……………..………….8
Troubleshooting Flow Chart..….………………………………………….……………….….……………..…….9-12
Electrical Parts List………………………………………………………………………………....……………13-15
Mechanical Parts List……………………………………………………………………….………….…………….16
Exploded Views.…………………………………………………………………………….…………….……………17
IC Circuit Block Diagram…………………………………………..…………….………………………………18-21
IC and Transistor Voltage Chart….……………………………..…………………………….…………………22-25
Semiconductor Lead Identifications……………………………………………………………………..……..…26
Main Schematic Diagram………………………………………….………………………………………………27
Control Schematic Diagram……………………………………….…………………………………………………28

Specification
AUX-IN & LINE OUT ELECTRICAL PERFORMANCE
Model: WM201 Brand: ROBERTS Temp: 25 ℃R. H. : 75 % Date:2007/6/14
Condition Value Test No.
Test Item Input Output Freq. Nom. Lim. 1. 2. Unit
4.5 3.5 W
Output Power SP/HP AUX IN= 1V/100Hz
THD=10% 2.8 2
mW
AUX IN
Dynamic Range
Output=R.0 (ATT=0)
THD=3%
AUX IN=1K 1 0.5 V
I/S (Input Sensitivity) AUX IN=100Hz，ATT=0
THD=10%
Volume=MAX 200 ±50 mV
0.1 0.4
DISTORTION SP/HP AUX IN =I/S 1KHz
OUT=50mW/1mW 0.1 0.4 %
0.2 1
MIN OUTPUT SP/HP AUX IN = GND
Volume= 1step 0.1 0.5 mV
S/N RATIO AUX IN =I/S 1KHz&GND
OUT=R.O with 20kHz LPF 65 55 dB
100 8 5
Frequency Response AUX IN=I/S/1KHz
OUT=50mW=0dB 10K 8 5
dB
LINE OUT LEVEL
(REC OUT IMPD=10K) MP3 1KHz 128kbps 1000 ±80 mV
LINE OUT S/N
(REC OUT IMPD=10K) MP3 1KHz 128kbps with 20kHz LPF 65 55 dB
LINE OUT THD MP3 1KHz 128kbps 0.1 0.4 %
MP3 1KHz 128kbps 65 55 dB
Channel Separation
with 20kHz LPF AUX IN=I/S/1KHz 65 55 dB
127Hz 0 ±2
LINE OUT Frequency Response 10007Hz 0 ±2 dB
Supply Voltage: AC230V/50Hz SP/HP R.O.: 50mW/1mW Load: 8/32 Ohm Modulation:
1KHz/30% Mod
Remark:
( )首件產品 ( )客戶抽測:
( )成品 ( )例行抽測 ( )業務樣品:
( )半成品 ( )新機種 ( )工程變更:
Approved by Released/Tested by
2

BLOCK DIAGRAM
3

MAIN PCB TOP VIEW
4

MAIN PCB BOTTOM VIEW
5

CONTROL PCB TOP VIEW
6

CONTROL PCB BOTTOM VIEW
7

WIRING DIAGRAM
8

TROUBLESHOOTING FLOW CHART
( 1 ) Power can not be turned on
Yes
Check EN301.
Check whether the pin 36 of IC4
is 3.3V DC.
No
Yes
Check whether the pin 2 of CN1 is
3.3V DC.
Check whether the pin 2 of J302 is
3.3V DC.
No Yes
Check whether the pin 3 of IC2 is
3.3V DC.
Check IC304.
No
Check T1.
( 2 ) Wireless does not work
Yes
Check whether the wireless adaptor
can normally work.
Check whether the wired is selected
or inserted.
No
Yes
Check whether the pin1 of W301 is
about 5V DC
Check whether module1 can work
normally.
No
Yes
Check whether the pin4 of W305 is
5V DC.
Check Q303, Q306.
No
No
Check T1.
Check whether the pin3 of IC1 is
5V DC.
9

( 3 ) Wired does not work
Yes
Check whether JK5 (RJ45 jack) can
normally work.
Check whether IC5 can normally
work.
No
Yes
change JK5(RJ45 jack).
Check whether the pin37&39 of IC4
transmit correct data.
No
Yes
Check whether the W302 circuit can
normally work.
Check Q303, Q306 circuit.
No
Check whether J302 can normally
work, especially pin 24, 26.
No
No
Check whether IIS circuit can
normally work.
Check whether wireless is selected
for software.
Yes
Check whether wireless is selected.
10

( 4 ) LCD does not display
No
Check the Q301 circuit.
Check whether the pin17 of LCD is
3.3V DC and the boost circuit can
normally work.
Yes
No
Check MODULE.
Check whether the J303 (module)
can normally work
Yes
Power off or factory reset, then
power on again.
( 5 ) speaker and headphone can not output
Check whether the speaker is
Normal.
Yes
Yes
Check L303—316 circuits.
Check whether IC302 audio amplifier
circuit can normally work.
No
No
Check whether the IIS circuit is
normal.
Check J302 (module).
Yes
Check whether pin47 of IC302 is
9V DC.
No
No
Check whether pin1 of CN1 is 9V DC. Check Q1, Q2, Q3 circuit is normal.
11

( 6 ) Aux in can not work
Yes
Check whether W303 circuit is
Normal.
Check JK3.
No
No
Check IC301 circuit.
Check whether IC301 can normally
Work.
Yes
Check whether J301(module) can
normally work.
Yes
Check whether IC302 circuit is
Normal.
( 7 ) Line out can not output
Yes
Check W304 and JK4.
Check whether IC303 can normally
Work.
No
Check whether J302 and IIS circuit
can normally work.
12

WFR-20
PART NO. DESCRIPTION Q'TY REMARK
1013560-A CH IC XC6203E332PR 2 IC 2,304,
1014280-A CH IC XC62FP6002PRN 1 IC 305,
1015490-A CH IC AD8256A-KG 1 IC 302,
1015500-A CH IC AK4387ET TSSOP16 1 IC 303,
1015510-A CH IC AK5357ET TSSOP16 1 IC 301,
1015520-A CH IC RTL8150L 1 IC 4,
1015530-A CH IC 93LC46BT-I SOIC8 1 IC 5,
1015610-A CH IC BA05FP TO252-3 1 IC 1,
1020241-A CH TR 2SC1623-T1B-A L7 3 Q 302,303,305,
1021000-A TR 2SB772-A2-Q 1 Q 3,
1022272-A CH TR 2SC4154-G hFE:400 2 Q 1,2,
1030330-A CH FET SI2315DS 3 Q 301,304,306,
1041191TA DIODE 1N5817 2 D 1,2,
1041360-A DIODE BRIDGE 2A/50V 1 BR 1,
1041410-A DIODE BRIDGE W04M 1.5A 1 BR 2,
1045140T-A DIODE ZENER Z9.1VB 1 D 3,
1046010-A CH DIODE RLS4148 2 D 301,302,
1062201-A CH LED WHT HG-SS0335WFZ 4 LED800-803,
1133832T-A FIXED COIL 120μHK 2 L 309,310,
1135101U-A FIXED COIL 1500uH 4 L 301,302,315,318,
1150200-A CH Ferrite Bead-C 20 BD 5-10,301-314,
1150300T-A FERRITE BEAD 65R φ3.5 8 L 305-308,311-314,
11629K1-3A FIXED COIL 22uHK 6φx6.5 5 L 303,304,316,317,3,
1614151-A PCB C WIFI 1.6T/2 1 300.400.800,
1614161-A PCB A WIFI 1.6T/1 1 1_199,
1620960-A SPK 2.5" 8Ω8W 2 SP 1,2,
1640060-A JACK EP3.5φW/SW BLK 1 JK 1,
1640170-A JACK EP 3.5φN/SW GRN 1 JK 3,
1640360-A JACK EP3.5φN/SW GRY 1 JK 4,
1646050-A AC SOCKET HJC-037AP 1 JK 2,
1649310-A USB JACK 1 JK 6,
1649351-A JACK RJ45 G7412-080101 1 JK 5,
1650660U-A X'TAL 25M+-30PPM 1 X 1,
1650661U-A X' TAL 25M+-30PPM
1701003-A CNT BASE 2x3P 1 CN 3,
1701004-A CNT BASE 2x4P 2 CN 4,5,
1701006-A CNT BASE 2x6P 2 CN 1,2,
170117A6-A CH CNT BASE 2x20Px2-S 1 J 302,
170117K-A CH CNT BASE 2x10Px2-S 2 J 301,303,
1705600-A CNT/W 200
(
2+4P
)
1 W 302,
1705910-A CNT/W-A 180
(
2+6P
)
1 W 305,
1705920-A CNT/WIRE 260
(
2+3P
)
1 W 303,
1706260-A CN/W 180
(
2+6P
)
1 W 304,
1706270-A CN/W 200
(
2+4P
)
1 W 301,
1720730-A X'FM 120V 9V/0.8A UL 1 T 1,
1730112-A ROT/ENCO RE111F-41B1-15F 1 EN 301,
1900360U-A W/SPK 200
(
4+2P
)
1 W 307,
1901000-A W/SPK 150
(
6+2P
)
R/B 1 W 306,
1901410-A LCD/M WIFI 1 LCD301,
1901420-A WLAN/M EW-7318 MUG 1 MODUL
1901430-A IR/M RIRM2 1 MODUL
444763PT2-A EL 476M 16V 5x11 7 C 306,352,353,400-403,
441072PT2-A EL 107M 10V 5x11 3 C 361,391,404,
4422711T2-A EL 227M 6.3V 6x8 1 C 346,
442272KT0-A EL 227M 10V 6.3x11-T 3 C 355,375,384,
ELECTRICAL PARTS LIST
13

WFR-20
PART NO. DESCRIPTION Q'TY REMARK
ELECTRICAL PARTS LIST
441081KT0-A EL 108M 6.3V 8x11.5-T 2 C 396,415,
441083KT-A EL 108M 16V 10x16-S 3 C 4,40,41,
4433890T-A EL 338M 16V 13x25
(
5
)
3 C 3,13,38,
4900023T0-A EL 228M 25V 13x25 105℃1 C 12,
4B47612-A CH TA 476M 6.3V 3.2x1.6 2 C 362,409,
4B47615-A CH TA 476M 6.3V 3216
5410101-A CH CC 101J 50V NPO-C 17 C 308,310,317,319,320,
322,323,325,327,330,
339,349,367,53-56,
5410261-A CH CC 102K 50V X7R-C 17 C 334,335,356,357,371-
374,389,390,392-395,
413,414,316,
5410361-A CH CC 103K 50V X7R-C 7 C 57-59,419,420,423,426,
5410471-A CH CC 104Z 25V Y5V-C 74 C 303,309,311-313,328,
336-338,351,354,358,
-360,363,364,366,368
370,376-383,385-388,
397-399,405-408,410-
412,1,2,5-11,14,418,
39,42,416,417,15,16,
18-20,22-26,28,31-34
,37,49,50,
5410556-A CH CC 105Z 16V F-C 9 C 314,318,321,324,326,
329,331-333,
5420001-A CH CC 200J 50V NPO-C 4 C 35,36,43,44,
5422261-A CH CC 222K 50V X7R-C 2 C 421,422,
5427001-A CH CC 270J 50V NPO-C 2 C 29,30,
5447001-A CH CC 470J 50V NPO-C 16 C 301,302,304,305,307,
340-345,347,348,359,
365,424,
5482261-A CH CC 822K 50V X7R-C 2 C 45,46,
5610471-A CH CC 104Z 25V Y5V-B 4 C 17,27,51,52,
6130112-A CH RD 1/16W 10J-C 20 R 301,318,346,347,350-
353,359,360,362-365,
374,375,20-23,
6130116-A CH RD 1/16W 22J-C 1 R 307,
6130124-A CH RD 1/16W 100J-C 6 R 2,3,367,368,380,381,
6130128-A CH RD 1/16W 220J-C 3 R 310,325,345,
6130129-A CH RD 1/16W 270J-C 4 R 800-803,
613012A-A CH RD 1/16W 51J-C 4 R 4,5,7,8,
6130136-A CH RD 1/16W 1KJ-C 13 R 309,311-317,342,354,
356,376,378,
6130138-A CH RD 1/16W 1.5KJ-C 1 R 6,
6130140-A CH RD 1/16W 2.2KJ-C 2 R 348,349,
6130144-A CH RD 1/16W 4.7KJ-C 5 R 341,366,369,377,379,
6130148-A CH RD 1/16W 10KJ-C 5 R 321,324,343,344,13,
6130149-A CH RD 1/16W 12KJ-C 1 R 15,
6130150-A CH RD 1/16W 15KJ-C 6 R 329-331,333,335,336,
6130154-A CH RD 1/16W 33KJ-C 1 R 357,
6130156-A CH RD 1/16W 47KJ-C 2 R 11,14,
6130160-A CH RD 1/16W 100KJ-C 2 R 12,361,
6130165-A CH RD 1/16W 270KJ-C 1 R 17,
6130172-A CH RD 1/16W 1MJ-C 3 R 355,358,370,
613018N-A CH RD 1K69F-1608 1 R 9,
6130194-A CH RD 1/16W OJ-C 5 R 382,1,10,371,JP21,
14

WFR-20
PART NO. DESCRIPTION Q'TY REMARK
ELECTRICAL PARTS LIST
6132137-A CH RD 1/16W 1.2KF-C 1 R 304,
6132149-A CH RD 1/16W 12KF-C 2 R 302,305,
6132154-A CH RD 1/16W 33KF-C 1 R 308,
6132155-A CH RD 1/16W 39KF-C 1 R 306,
6132164-A CH RD 1/16W 220KF-C 1 R 303,
6180135-A CH RD 1/10W 820J-A 2 R 16,19,
64306B6-A RDF 1/2W 0.47J SM15
(
MG
)
1 R 18,
6500424-A CH RP 100Jx4-C 4 RP 301,302,304,305,
6500436-A CH RP 1KJx4-C 1 RP 303,
8000010-A W/JUMP 5
(
10
)
0.6mm 7 JP 5,8,9,11,17,18,25,
8000030-A W/JUMP 7.5
(
10
)
0.6mm 9 JP 1,2,6,7,10,13-15,19,
8000040-A W/JUMP 10
(
10
)
0.6mm 5 JP 12,16,20,22,23,
8141920-A W/PVC 115
(
3+6
)
T BLK 1 W 1,
15

Ref no PART NO. DESCRIPTION Q'TY APP./DWG NO. REMARK
1 20P1010-A LED FILTER 1
A
4-RD22-06
2 20P1020-A JACK COVER 1
A
3-RD22-10
3 20R1000-A LCD LENS HOLDER 1
A
4-R1-01
4 20R1010-A LIGHT LENS 1 A4-R1-02
5 21P5060-A TOOTHED LOCK WASHERS 1
6 22P1000-A HEMELON 4
A
4-RD22-17
7 23K7010-A DOUBLE TAPE 1
A
4-WR1-51A
8 23P1000-A EVA-A 272x3x1 4
A
3-RD22-13
9 23P1010-A EVA-B 85x3x1 2
A
4-RD22-14
10 23P1020-A EVA-C 96x3x1 3
A
4-RD22-15
11 23P1030-A EVA-D 23x3x1 2
A
4-RD22-16
12 23P4060-A EVA 85x3 2
13 23P4071-A EVA 24x1.5 2
A
4-DPR25-36A LCD
14 23Q5230-A FIBER SPCER 2
A
4-Q5-49
15 23R1020-A LCD DIFFUSE 1
A
4-R1-04
16 23R1030-A DOUBLE TAPE 50x12 1
A
4-R1-05
17 23R1050-A DOUBLE TAPE38x8 1
A
4-R1-12
18 23R1060-A RUBBER-C 1
A
4-R1-09
19 23R1070-A EVA 70x3x1 1
A
4-R1-10
20 24M4080-A SPK EV
A
2
21 24M7020-A FOOT RUBBE
R
4
22 24P1000-A RUBBER-
A
1
A
4-RD22-07
23 25R1010-A SNAP RIVET 1 SR-2.7J
24 25R1020-A SNAP RIVET B 1 SR-2H
25 25R1030-A COMPONET PAD 1 109AC
26 301R179-A FRONT CABINE
T
1
A
2-RD22-01
27 302R11U-A CHASSIS-UL 1
A
2-RD22-02
28 303R11U-A BACK COVER-UL 1
A
2-R1-01
29 305R101-A LCD WINDOW 1
A
4-RD22-03
30 311R179-A VOLUME KNOB 1
31 312R179-A VOLUME KNOB BEZEL 1
A
4-RD22-05
32 347R179-A
A
NT HOLDE
R
1
A
4-R1-03
33 360R179-A ROD ANT 1
34 372R179-A WOOD CASE 1
A
2-RD22-12
35 8510000-A W/TIES 100mm 1
36 9003082-A SCREW JMP 3x8
(
NI
)
3 MAIN PCBx3
37 9101052-A SCREW PTP 2x5
(
NI
)
3 JACK COV.
38 9101082-A SCREW PTP 2x8
(
NI
)
2 JACK COV.-BACK COV.
39 9151062-A SCREW PTPW 2x6
(
NI
)
4 C-PCB-FRONT CABx4
40 9163061-A SCREW PTB 3.0x6 8 SPEAKERx8
41 9163082-A SCREW PTB 3.0x8
(
NI
)
2
A
C JACKx2
42 9163102-A SCREW PTB M3x10
(
NI
)
8 FRONT CAB-CHASSIS
43 9203202-A SCREW PTP 3x20
(
NI
)
6 FRONT CAB-BACK COVE
R
44 9253162-A SCREW PTPW 3x16
(
NI
)
2 TRANS TORME
R
45 9902030-A NUT M3 3 MAIN PCB
46 9902090-A NUT M9.0 1
A
4-R1-06
MECHANICAL PARTS LIST
WFR-20
16

17

IC CIRCUIT BLOCK DIAGRAM
1. IC1 – BA05FP
2. IC2 & IC304 – XC6203E332PR
18

3. IC4 – RTL8150L
4. IC5 – 93LC46BT - I/SN
19

5. IC301 – AK5357ET
6. IC302 – AD8256A-KG
20