Roberts ecologic 2 User manual

ecologic 2
FM RDS /
DAB DIGITAL PORTABLE RADIO
CONTENTS
Specification 2-3
Block Diagram 4
Main PCB Top View 5
Main PCB Bottom View 6
Power PCB Top View 7
Power PCB Bottom View 8
Wiring Diagram 9
Troubleshooting Flow Chart 10-14
Electrical Parts List 15-17
Mechanical Parts List 18
Exploded Views 19
IC Circuit Block Diagram 20-24
Semiconductor Lead Identifications 25
IC and Transistor Voltage Chart 26-28
Schematic Diagram 29

Specification
FM. ELECTRICAL PERFORMANCE
Model:
ecologic 2(UK) Brand: ROBERTS Temp: 25℃R.H.: 75 % Date: 2008/07/15 Ver.：A Page：1/2
Test Item Condition Value Test no.
Input Output freq Nom. Lim 1. 2. 3. Unit
Min 87.5
Tuning Range S/N=6dB Max 108 MHz
Max. Sensitivity S/N=6dB 90MHz 98MHz
106MHz
3
3
3
9
9
9
EMF
dBu
Usable Sensitivity S/N=30dB 90MHz 98MHz
106MHz
12
12
12
18
18
18
EMF
dBu
Min. output 60 dBu 1.0 3.0
mV
rms
Auto. Scan. Stop. Sens.
(STEREO 45KHz/Dev
Pilot 10%) 28 34
EMF
dBu
Spurious Rejection
EMF
dBu
S/N Ratio
R.O.
52 46 dB
Stereo separation 1KHz
75KHz/Dev. Ear OUT
3mW/16Ω38 32
dB
Current Consumption
Back Light OFF 90 130
mA
Am. Suppression (1mV) R.O. 52 46 dB
150Hz +7
±2
dB
Audio fidelity
1KHz=0dB, VR=R.O
(W/pre emphasis 50uS) 10KHz +4
±2
dB
Output Power (75KHz dev.)
400Hz,10% THD SP OUT
8Ω1 0.8
W
Output Power (75KHz dev.)
1KHz, Volume=MAX Ear OUT
16Ω5+5 3+3
mW
T. H. D. (75KHz dev.)
60 dBu
R.O. 1 3 %
Over load capacity 10%T.H.D 120 106
EMF
dBu
Lowest Battery Voltage 60 dBu
98MHz
5.4 6.3 V
Charge current
DC ADAPTOR 12V IN Power off, charging 380 ±80 mA
Supply Voltage: DC 9V R.O.: 50mW Load: 8 Ohm Modulation: 400 Hz Mod. / 22.5KHz Deviation
W/ 20KHz LPF ON
Remark：
Approved by
蔡宇曙 2008/7/15
Released/Tested by
陳奇強 2008/7/15
葉克隆2008/7/15
2

Specification
DAB(BAND Ⅲ ) ELECTRICAL PERFORMANCE
Model:
ecologic 2(UK) Brand: ROBERTS Temp: 25℃R.H.: 75 % Date: 2008/07/15 Ver.：APage：2/2
Limit Test no.
Test Item Condition CH Normal 1. 2. 3. Unit
Min 5A CH
RF Freq. Range Max 13F
CH
Far-off Selectivity
Fc : -70 dBm (Wanted channel)
Fi : ≧-25 dBm
FM 75KHz/dev. Fc ±5MHz
(Unwanted channel)
(Measurement to EN50248)
10A 55 45
dB
5A -95 -92 dBm
10A -95 -92 dBm
12B -96 -93 dBm
Sensitivity Without pop noise
13F -96 -93 dBm
5A -101 -98 dBm
10A -101 -98 dBm
12B -101 -98 dBm
Acquisition Selectivity (Measurement to EN50248)
13F -101 -98 dBm
S/N Ratio
W/ 20KHz LPF ON Without pop noise 10A 56 50 dB
Change service AF=125Hz 10A +10 ±2 dB
Audio fidelity
1KHz=0dB, VR=R.O
W/ 20KHz LPF ON Change service AF=8KHz 10A +1.5 ±2 dB
Max. input Signal Without pop noise 10A 0 -10 dBm
Current Consumption
Back Light OFF Without pop noise 12B 80 120 mA
Supply Voltage: DC 9V R.O. : 50mW Load: 8 Ohm Modulation :1kHz
Channel Freq.( MHz) Channel Freq.( MHz) Channel Freq.( MHz)
5A 174.928 10A 209.936 12B 225.648
13F 239.200 5B 176.640 13E 237.488
Remark：
Approved by
蔡宇曙 2008/7/15
Released/Tested by
陳奇強 2008/7/15
葉克隆2008/7/15
3

+5V
R
R
L
R
FM
+3.3V
+5V
VCC
L
Q
MUTE
+5V
L
MUTE
+5V
L
Memory
DAB
+3.3V
+1.2V
+9V VCC
+9V
LCM LAMP Control
R
Battery +9V
CHARGER LOOP
SW2 - SW12 Key Map
ANT
LCD DATA
+3.3V
+3.3V
+9V
1N5817
D304
SW300 Q305
Charging
Voltage detect
EQ Pre-AMP
1N4002
D300 Q300,Q301
Q306,Q307 IC300 MC33340
IC301 LD1117AL
Q10,Q7,Q8
+3.3V
Detect Voltage
LCM LAMP
LCD1
+3.3V
AUDIO R OUT
Temperature detect
POWER SWITCH LOOP
IC1 TC4013BFN
IC3 LM4809 IC4 AD5165A
Regulator +9V
RDS Q4,Q5,Q13
IC8 S-8550AA Q11,Q12 +1.2V
CON1 FS2025 DAB MODULE
AUDIO L OUT
Q1,D4 LED500 LED501
Q9,SW1
MUTE LOOP MUTE LOOP
8 ohm SPEAKER
Q2,Q3,Q14 Q15,Q6 Q2,Q3,Q14
Q15,Q17
HEADPHONE JACK
LCM
IC6 S-8520A33MC Q26,D7 +3.3V
CLASS-D AMP
HEADPHONE AMP
+12V ADAPTER
TMR300
LED1
JK301
IC2 NJM2100M
IC5 S-8520A50MC Q25,D6 +5V
BLOCK DIAGRAM
4

MAIN PCB TOP VIEW
5

MAIN PCB BOTTOM VIEW
6

POWER PCB TOP VIEW
7

POWER PCB BOTTOM VIEW
8

WIRING DIAGRAM
9

Power can not be turned on
Check whether the Pin1
of IC1 is High Level. Check whether the Pin14 of IC1 is VCC. Check Adaptor or Bettery.
Check SW1 and IC1. Check D300, D304,
CON300 and W1.
Check whether the Q10
"C" is 9V. Check Q7, Q8, Q10 and D10.
Check whether the L13 is
3.3V.
Check Pin1 of IC6 is
above 4V and check IC6,
Q26, L12, L13, D7 and B6.
Check whether the L8 is
5V.
Check Pin1 of IC5 is
above 6V and check
IC5,Q25, L8, L9 and D6.
Check whether the L15 is
1.2V.
Check Pin1 of IC8 is
above 2V and check IC8,
L14, L15 and B5. Check Pin3 of IC8 is 3.3V.
Check whether the Pin1
of FS2025 Module is 1.2V
and Pin2 is 3.3V. Check Q11 and Q12.
Check the Module.
TROUBLESHOOTING FLOW CHART
No
Y
es
No
No
No
No
No
No
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
10

Rechargeable Bettery can not be charging
Check SW300 is switch
to "Rechargeable".
Check whether the Pin1
of IC1 is Low Level, Pin2
of IC1 is High Level.
Check whether the Pin14
of IC1 is VCC. Check Adaptor vlotage is above 10.5V.
Check IC1. Check D300, CON300 and
W1.
Check whether the Q307
"C" is VCC. Check whether the Pin1 of CON300 is VCC.
Check Q307 and Q306.
Check whether the Q300
"C" is VCC. Check Q300, Q301 and SW300.
Check whether the Pin8
of IC300 is VCC. Check IC300 and D306.
Check whether the Pin1
of IC300 is 1.0V ~ 2.0V.
Check SW300, IC300,
R307, R308 and
Rechargeable Bettery.
No
Y
es
A
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
No
No
No
No
No
No
11

Check TMR300, R309,
R310 and D302 are solder
OK.
Check whether the Pin3
of IC300 is High Level. Check IC300.
Measure R305 two
terminal is 1.23V ~ 1.26V. Check IC301, R305, R311, D301 and D302.
Check whether the
Charge LED is light. Check whether the Pin2 of IC300 is High Level. Check IC300 and R323.
Check LED1, Q305, D305,
CON301 and CN1.
A
Y
es
Y
es
Y
es
Y
es
No
No
No
No
12

Speaker or Earphone no sound
Check whether the L8 is
5V.
Check Pin1 of IC5 is
above 6V and check IC5,
Q25, L8, L9 and D6.
Check Module is working
OK and do not plug
earphone.
Measure whether the
Pin29 and Pin30 of
FS2025 Module have
sound wave.
Check Module.
Measure whether the
Pin3 and Pin4 of W2 have
sound wave.
Check IC2, VR600,
CON600 and W2.
Measure whether the
Pin1 and Pin7 of IC3 have
sound wave. Check IC3.
Measure whether the
JK301 has sound wave Check JK301, R300, R301, CON300 and W1.
Check Earphone.
B
( Earphone ) ( Speaker )
Y
es
No
Y
es
Y
es
Y
es
Y
es
Y
es
Y
es
No
No
No
No
13

Measure whether the
speaker terminal has
sound wave.
Check whether the Pin6
of IC4 is 5V. Check IC4 and B1.
Check Speaker. Check whether the Pin1
of IC4 is High Level. Check Q17, JK301, R135, W1 and CON300.
Check IC4, L10 and L11.
No
B
Y
es
Y
es
Y
es
No
No
14

ecologic 2
PART NO. DESCRIPTION Q'TY REMARK
1012072-A CH IC NJM2100M DMP8 1 IC 2,
1013620-A CH IC TC 4013BFN SOL14 1 IC 1,
1014530-A CH IC LM4809 1 IC 3,
1014580-A CH IC MC33340 1 IC 300,
1014780-A CH IC LD1117AL-ADJ 1 IC 301,
1014981-A CH IC AD5165A-H DFN8L 1 IC 4,
1015760-A CH IC S-8550AA-M5T1G 1 IC 8,
1015830-A CH IC S-8520A33MC-AVST2G 1 IC 6,
1016010-A CH IC S-8520A50MC-AWJT2G 1 IC 5,
1020230-A CH TR 2SA812-T1B-A M6 1 Q 11,
1020241-A CH TR 2SC1623-T1B-A L7 4 Q 1,7,8,301,
1020250TA TR 2SA1020Y-T hFE=120 1 Q 300,
1020420-A CH TR 2SA1576AT106-R 4 Q 2-4,307,
1021130-A CH TR 2SB772-Q TO-252 1 Q 10,
1022220-A CH TR 2SC4081T106-R 7 Q 5,6,13,14,17,305,306
1023010-A CH TR 2SD1048 X6 1 Q 9,
1026140-A CH TR DTC144EN3 SOT23 2 Q 12,15,
1030380-A CH FET 2SJ621 SC-96 2 Q 25,26,
1041030TA DIODE 1N4002-T 3 D 300,301,303,
1041190T-A DIODE 1N5817-T 4 D 6,7,302,304,
1045081TA DIODE ZENER HZ4-A3-TA 1 D 306,
1045349-A CH ZENER 5.6V 5mA 1 D 9,
104534B-A CH ZENER 6V8 1 D 10,
1046010-A CH DIODE RLS4148 2 D 2,11,
1046171-A CH DIODE BAV70N3 3 D 1,3,4,
1046230-A CH DIODE BAS16 1 D 305,
1050150-A LED RED 3.0x5.1 1 LED1,
1062211-A CH LED YEL SS0335YCN-001 2 LED500,501,
1150210-A CH FERRITE BEAD-MLB102-A 2 B 5,6,
1150250-A CH FERRITE BEAD 600R-B 1 B 1,
1150310-A CH FERRITE BEAD 1K-1608 1 B 3,
11629K1-3A FIXED COIL 22uHK 6φx6.5 7 L 8-13,15,
11637K1-3A FIXED COIL 100uHK6φx6.2 1 L 14,
1317724-A R-VR 20KBx2 RV142 L=12.5 1 VR 600,
1613751-A PCB P RD-49 1
1614642-A PCB A DPR-99 1.6T/2 1
1621081-A SPK 3" 8Ω3W 1
1631510-A TACT SW 160±50
g
f9.5mm 12 SW 1-12,
1631830-A CH SLIDE SW 2P2C 1 SW 300,
1640060-A JACK EP3.5φW/SW BLK 1 JK 301,
1647110-A JACK DC HTJ-020-04AZ 1 JK 302,
1701002-A CNT BASE 2x2P 1 CON301,
1701087-A CNT BASE 2.5x7P 1 CON300,
170234V-A CH HOUSING 2.54x15Px2 1 CON1,
1702474-A TIP 8x4P-S 1 CON500,
1705260-A CNT/WIRE 80
(
2+2P
)
W/B 1 CN 1,
1705440-A CNT/WIRE 180
(
2.5x7P
)
1 W 1,
1901750-A LCD/M 1602EW-SYT-5 RD-60 1 LCD1,
1901960-A DAB/M FS2025 V5 DPR-99 1
2200150-A 6φGRN LABEL FTZ 1
444754NT2-A EL 475M 25V 4x7 1 C 135,
4422642T2HA EL 226M 25V 5x7-T 105 1 C 11,
4447632T2HA EL 476M 16V 5x7-T 105 1 C 13,
4410722T2HA EL 107M 10V 5x7-T 105 5 C 51-53,55,58,
4410732T0HA EL 107M 16V 6.3x7-T 105 1 C 302,
ELECTRICAL PARTS LIST
15

ecologic 2
PART NO. DESCRIPTION Q'TY REMARK
ELECTRICAL PARTS LIST
4410752T0HA EL 107M 35V 8x7-T 105 1 C 6,
4422712T0HA EL 227M 6.3V 6.3x7-T 105 3 C 60,69,70,
4422733T0HA EL 227M 16V 8x9-T 105 3 C 56,57,301,
4410814T0HA EL 108M 6.3V 8x11-T 105 2 C 131,132,
4B22532-A CH TA 225M16V 3.2x1.6 4 C 36,47,88,89,
4B47513-A CH TA 475M 16V 3.2x1.6 1 C 133,
4B47615-A CH TA 476M 6.3V 3216 6 C 41,43,44,46,61,130,
5410101-A CH CC 101J 50V NPO-C 11 C 4,7,14,17-24,
5410261-A CH CC 102K 50V X7R-C 7 C 10,83,115,124,126,
128,129,
5410361-A CH CC 103K 50V X7R-C 3 C 9,30,303,
5410471-A CH CC 104Z 25V Y5V-C 29 C 5,16,34,49,80,81,85,
112,114,116-118,120-
123,125,127,134,300,
304,72,74-76,138,140-142,
5410556-A CH CC 105Z 16V F-C 11 C 2,3,8,37,68,82,84,87
,90,137,306,
5415485-A CH CC 154K 16V X7R-C 2 C 31,50,
5422361-A CH CC 223K 50V X7R-C 2 C 26,62,
5427351-A CH CC 273K 16V R-C 4 C 64-67,
5433351-A CH CC 333K 16V X7R-C 2 C 63,73,
5447001-A CH CC 470J 50V NPO-C 1 C 71,
5447101-A CH CC 471J 50V NPO-C 2 C 136,139,
5447261-A CH CC 472K 50V X7R-C 2 C 32,54,
5447331-A CH CC 473K 25V B-C 1 C 305,
5522572-A CH CC 225Z 16V Y5V-
A
1 C 48,
5547573-A CH CC 475Z 10V Y5V-
A
1 C 59,
61301101-A CH RD 100J-0603 2 R 31,34,
61301102-A CH RD 1KJ-0603 1 R 129,
61301103-A CH RD 10KJ-0603 4 R 63,116,149,151,
61301104-A CH RD 100KJ-0603 12 R 28,29,88,115,123,128
,132,134,313,316,318,323
61301122-A CH RD 1K2J-0603 1 R 118,
61301123-A CH RD 12KJ-0603 2 R 21,302,
61301152-A CH RD 1K5J-0603 6 R 44,61,98,102,103,112
61301153-A CH RD 15KJ-0603 1 R 92,
61301154-A CH RD 150KJ-0603 1 R 307,
61301182-A CH RD 1K8J-0603 1 R 324,
61301183-A CH RD 18KJ-0603 1 R 148,
61301220-A CH RD 22J-0603 1 R 70,
61301221-A CH RD 220J-0603 1 R 311,
61301222-A CH RD 2K2J-0603 1 R 303,
61301223-A CH RD 22KJ-0603 5 R 42,48,62,68,81,
61301272-A CH RD 2K7J-0603 5 R 49,58,113,117,122,
61301273-A CH RD 27KJ-0603 1 R 325,
61301274-A CH RD 270KJ-0603 3 R 91,133,314,
61301303-A CH RD 30KJ-0603 1 R 310,
61301332-A CH RD 3K3J-0603 8 R 85,89,90,100,101,104
,105,141,
61301334-A CH RD 330KJ-0603 1 R 30,
61301390-A CH RD 39J-0603 2 R 300,301,
61301393-A CH RD 39KJ-0603 1 R 308,
61301432-A CH RD 4K3J-0603 1 R 309,
61301472-A CH RD 4K7J-0603 4 R 64,79,114,315,
61301473-A CH RD 47KJ-0603 10 R 27,32,33,51-53,57,87
16

ecologic 2
PART NO. DESCRIPTION Q'TY REMARK
ELECTRICAL PARTS LIST
,135,317,
61301680-A CH RD 68J-0603 2 R 106,107,
61301682-A CH RD 6K8J-0603 1 R 120,
61301683-A CH RD 68KJ-0603 2 R 150,152,
61301822-A CH RD 8K2J-0603 1 R 121,
61301823-A CH RD 82KJ-0603 1 R 119,
61321154-A CH RD 150KF-0603 1 R 137,
61321243-A CH RD 24KF-0603 1 R 319,
61321304-A CH RD 300KF-0603 2 R 138,142,
61321473-A CH RD 47KF-0603 1 R 140,
61321474-A CH RD 470KF-0603 1 R 320,
61321513-A CH RD 51KF-0603 1 R 136,
61401101-A CH RD 100J-0402 7 R 93-97,99,108,
61401472-A CH RD 4K7J-0402 1 R 20,
61501102-A CH RD 1KJ-1206 2 R 86,304,
61501220-A CH RD 22J-1206 2 R 126,127,
61801471-A CH RD 470J-0805 1 R 312,
648083R30-A RDF 2W 3R3J
(
MG
)
1 R 305,
6999926-A THERMISTOR 10K
(
9-11mm
)
1 TMR300,
8000030-A W/JUMP 7.5
(
10
)
0.6mm 4 J 300,305-307,
8000050-A W/JUMP 12.5
(
10
)
.6mm 3 J 301,302,304,
8270210-A W/PVC 30
(
3+3
)
BLK 1
8270410-A W-A/1 40
(
3+3
)
BLK 1
8593010-A W/2 230
(
6+6
)
R/B 1 BATT,
8593320-A W-S/3 200
(
3+6
)
1 SPK
8601880-A W-C/1 150
(
3+3
)
1 ANT,
8677428-A W/7 23
(
6+3
)
P=2 GRY 1 CON600,
17

Ref no PART NO. DESCRIPTION Q'TY APP./DWG NO. REMARK
1 20Q4000-A SPEAKER HOLDER 1
A
4-RD49-02
2 20Q4012-A RUBBER KEY HOLDE
R
1
A
4-RD49-03
3 20Q4020-A POWER KNOB HOLDER 1
A
4-RD49-04
4 20Q4060-A SPEAKER SPACER SUPPOR
T
4
A
4-RD49-11
5 20Q4080-A TDCD SUPPOR
T
1
A
4-RD49-13
6 20Q4090-A LED HOLDER 1 品固EDG-10
A
7 20RA000-A LCD LIGHT LENS 1
A
4-RA-01
8 20SF000-A LCD LENS HOLDER 1
A
3-SF-01
9 20SF010-A MODULE SPACE
R
2品固MCF-03
10 2159020-A DC/DC SHIELD
(
DOWN
)
4
A
4-800-1218A
11 21M3010A-A ROD ANT LUG 1
A
4-RD15-22
12 21M4062-A BATTERY CONTACT ASS'Y
+
1
A
4-SB-39A
13 21P4070-A SHIELD COVER 4
A
4-DPR25-37
14 21P4080B-A SHIELD DOWN 4
A
4-DPR25-38
15 21PJ080-A BATTERY CONTACT ASS'Y+
-
2
A
4-ISB-24
16 21PJ090-A BATTERY CONACT ASS'Y+
-
2
A
4-ISB-25
17 21Q4000-A GROUND PLANE 1
A
4-RD49-15
18 21Q4020-A BATTERY CONACT ASS'Y
-
1
A
4-RD49-21
19 21Q4031-A TDCD CONTACT ASS'
Y
1
A
4-RD49-18
20 2279000-A HEMLON CUSHION 1
21 22Q4050-A HEMELON-W
(
10x3x0.4
)
2
A
4-RD49-30
22 23P1010-A EVA-B 85x3x1 2
A
4-RD22-14
23 23P4050-A PVC FILM 1
A
4-DPR25-34
24 23P4071-A EVA 24x1.5 2
A
4-DPR25-36A
25 23Q4000-A MYLAR 10x10 2
A
4-RD49-17
26 23RA021-A LCD LIGHT MYLA
R
1
A
4-RA-26
27 24M3010-A VR-KNOB SPACE
R
1
A
4-RD15-27
28 24M4030-A SILICONE RUBBER TUBES 1
29 301SF01-A FRONT CABINET
(
W
)
1
A
4-RD49-01
30 303SF01-A BACK COVER
(
W
)
1
A
4-RD49-05
31 304Q410-A BATTERY COVE
R
1
A
4-RD49-06
32 305Q401-A DIAL WINDOW 1
A
4-RD49-10
33 310Q401-A POWER RUBBER KEY 1
A
4-RD49-16
34 313Q401-A RUBBER KEY ASS'
Y
1
A
4-RD49-14
35 320M301-A VR-KNOB 1
A
4-RD15-18
36 326RH12-A BACK COVER SHIELD
(
L
)
1
37 327RH12-A BACK COVER SHIELD
(
M
)
1
38 328RH12-A BACK COVER SHIELD
(
R
)
1
39 343Q401-A SPEAKER GRILL 1
A
4-RD49-19
40 360M301A-A ROD ANT 1
A
1-RD15-12
41 9092102-A SCREW JM 2.6x10
(
NI
)
1 ROD ANT
42 9103102-A SCREW PTP 3x10
(
NI
)
5 FRONT/BACKx5
43 9151062-A SCREW PTPW 2x6
(
NI
)
14 SPKx4/LCD PCBx2/A PCBx
3
JACK PCBx4/VR PCBx1
44 9161082-A SCREW PTB M2x8
(
NI
)
1 FRONT/BACK CABINETx1
MECHANICAL PARTS LIST
ecologic 2
18

19

IC CIRCUIT BLOCK DIAGRAM
1. IC1 －TC4013BFN
2. IC2 －NJM2100M
20