Roberts RecordR Bedienungsanleitung

RecordR

DAB/FM RDS

DIGITAL PORTABLE RADIO

CONTENTS

Specification 2-5

Block Diagram 6

All PCB Top View 7

All PCB Bottom View 8

Wiring Diagram 9

Troubleshooting Flow Chart 10

Electrical Parts List 11-13

Mechanical Parts List 14

Exploded Views 15

IC Circuit Block Diagram 16-20

Semiconductor Lead Identifications 21

IC and Transistor Voltage Chart 22-24

Schematic Diagram 25

Specification

FM. ELECTRICAL PERFORMANCE

Model ：RecordR Brand：ROBERTS Temp：25∘CR.H. ：

75% Date：2011/10/11 Ver.：A Page：1/4

Condition Value Test no.

Test Item 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

10 EMF dBu

Usable Sensitivity S/N=30dB 90MHz

98MHz

106MHz

18 EMF dBu

Min. output 60 dBu 1.0 3.0 mV rms

Auto. Scan. Stop. Sens.

(STEREO 45KHz/Dev

Pilot 10%) R.O. 26 32 EMF dBu

S/N Ratio

(22.5KHz/Dev)1KHz

with 20KHz LPF R.O. 56 46 dB

Stereo separation 1KHz

75KHz/Dev. Ear OUT

3mW/32Ω30 22 dB

Current Consumption

Battery6V 180 230 mA

Am. Suppression (1mV) 32 26 dB

100 200 Hz

Audio fidelity

75kHz/dev. 50uS

(-3dB W/pre emphasis)

R.O.

10K 8K Hz

High 9 +3 dB

TONE10KHz

75kHz/dev.50uS Low R.O. -15 +3 dB

Output Power

(75KHz dev.)

1kHz,10% THD

SP OUT

8Ω1 0.8 W

Output Power

(75KHz dev.)

1KHz, Volume=MAX

Ear OUT

32Ω5+5 3+3 mW

T. H. D. (75KHz dev.)

60 dBu

R.O. 1 3 %

Over load capacity 10%T.H.D

98MHz

120 106 EMF dBu

Low Battery 60 dBu 3.9 4.3 V

Supply Voltage:

*Adaptor 100-240V 50Hz 7.5V/0.8A

*Battery6V R.O. :50mW Load: 8 Ohm Modulation: 1K Hz Mod./22.5KHz Deviation

W/ 20KHz LPF

Remark：

Approved by

Released/Tested by

陳盧生

Specification

DAB(BAND

Ⅲ

) ELECTRICAL PERFORMANCE

Model ：RecordR Bran：ROBERTS Temp：25∘CR.H.：75% Date：2011/10/11 Ver：A Page：2/4

Test no.

Test Item Condition CH Nom. Lim 1. 2. 3.

Unit

Min 5A

RF Freq. Range Max 13F

Adjacent Channel

Selectivity

Fc : -70 dBm (Wanted channel)

Fi :≧-38 dBm

(Unwanted channel)

(Measurement to EN50248)

10A 32

Far-off Selectivity Fc : -70 dBm (Wanted channel)

Fi : ≧-25 dBm

FM 75Khz/dev. Fc±5MHz

(Unwanted channel)

(Measurement to EN50248)

10A 53 45

5A -91 -88

dBm

10A -91 -88

dBm

12B -93 -90

dBm

Sensitivity

Without pop noise

13F -93 -90

dBm

5A -97 -94

dBm

10A -97 -94

dBm

12B -98 -95

dBm

Acquisition Selectivity (Measurement to EN50248)

會自動重新 tunning

以tune 的到電台信號為準 13F -98 -95

dBm

Max. input Signal Without pop noise 10A 0 -10

dBm

S/N Ratio

W/ 20KHz LPF DAB S.G. = - 70 dBm 10A 60 50 dB

T.H.D.

W/ 20KHz LPF Input : -10dBm 10A 1 3

Channel Balance Input : -10dBm 10A 1 ±2

Current Consumption

Battery 6V

R.O.

DAB S.G. = - 70 dBm 12B 170 210

Supply Voltage:

*Adaptor 100-240V 50Hz 7.5V/0.8A

*Battery 6V 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

Released/Tested by

陳盧生

Specification

SD MP3 ELECTRICAL PERFORMANCE

Model ：RecordR Brand：ROBERTS Temp：25∘CR.H.：75% Date：2011/10/11 Ver：A Page：3/4

Condition Value Test no.

Test Item Input Output freq Nom. Lim 1. 2. 3. Unit

Playing

Support playing format MP3/WMA

SD capacity 16MB~8GB

Sample rate 16k/32/64/128/192k bps

Reading time 8GB <10 Sec

100Hz 7 +-2 dB

Playing

freq response Test 1 kHz MP3128kbps 0dB

OUT=R.O=0dB 10K 2 +-2 dB

S/N (with A Filter）1 kHz MP3 0dB 128kbps R.O 56 dB

0.5 1 %

THD of playing MP3 1kHz 128kbps 0dB R.O Vrms

Power consumption

Battery 6V playing SD only(1K) R.O 200 mA

Output power 1 kHz MP3 0dB 128kbps 10%T. H.D. 1 0.8 W

Record and playing

RC/P gain difference Record FM DEV 22.5kHz/ 400Hz R.O

measure playing output level -3 +-3 dB

R/P THD Record FM DEV 75kHz/ 1KHz R.O 1 3 %

S/N Record FM DEV 22.5kHz/ 1KHz R.O 50 dB

Power consumption

Battery 6V recording+FM R.O 250 mA

Rewind and playing

RW/P gain difference Rewind FM DEV 22.5kHz/ 400Hz R.O

measure playing output level 0 +-3 dB

RW/P THD Record FM DEV 75kHz/ 1KHz R.O 1 3 %

S/N Record FM DEV 22.5kHz/ 1KHz R.O 50 dB

Power consumption

Battery 6V rewinding+FM R.O 250 mA

Supply Voltage:

*Adaptor 100-240V 50Hz 7.5V/0.8A

*Battery 6V R.O.: 50mW Load: 8Ohm Modulation: TONE set at 0

Remark：

Approved by

Released/Tested by

陳盧生

Specification

AUX IN ELECTRICAL PERFORMANCE

Model :RecordR Brand：ROBERTS Temp：25∘CR.H.：75% Date：2011/10/11 Ver：A Page：4/4

Condition Value Test No.

Test Item Input Output Freq. Nom. Lim. 1. 2. 3. Unit

Output Power AUX IN= 0.5Vrms /400Hz

THD = 10%

( TEST : R/L SHORT ) 1 0.8 W

AUX IN

Dynamic Range

Output=R.0 , Adjust_V.R

THD=3%

AUX IN=400Hz 2 1 V

Input Sensitivity

AUX IX=400Hz

Volume = Max ,

OUT=1W(2.828Vrms)

( TEST : R/L SHORT )

320 ±50 mVrms

Distortion AUX IN= Input Sensitivity

/400Hz

Output =R.O. 0.8 2 %

Min. Output AUX IN= Input Sensitivity

/400Hz

Volume = Min 0.5 1.5 mVrms

S/N RATIO AUX IN= Input Sensitivity

Output =R.O.

( TEST : 400Hz & GND) 60 50 dB

Supply Voltage:

*Adaptor 100-240V 50Hz 7.5V / 1.6A;

*Battery 6V R.O.: 50mW Load: 8 Ohm Modulation TONE set at 0

Note : Test add 20 Hz ~ 20kHz Filter LPF

( ) The head of product

( ) Finished Product

( ) Semi-finished Product

( ) New Model

( ) Client Spot Check

( ) Routine Spot Check

( ) Engineering Modify

( ) Business Sample

Approved by

Released/Tested by

陳盧生

Power_LED

Q9 on

SD1

IC5

1.2V

P8 P1,3

DAB

P1,12

P10

P4 P1

Q16

D302

IC7

BATT

JK301

LCD

LCM

Q15

L/R

IC1

Q19,21

D12

D11

D10

IC8

Mute

IC6

of Record save

Module

P28

P34

P24

LED 2 ,3

Backlight

SD JACK

D3,8,13

Q13,7,6

3.3V

P26 ADP.DET

IC9

P36,38 Control

P5,14

P40

P8 AUX DET

SW1

Power

P14

Power Control

Low Batt of Power_off

VR2

VR1

Control

JK303

Alarm on

Power off

D12

Mute

Pre_Amp

IC2

Mute

8Ω/ 3W

Power_Amp

EAR JACK

Low Batt DET

Q10,11 Switch

Q1,Q22,Q23

5.1V

IC4 , L3

L/R

BAND

PA2

Q4 ,5 , 15

L/R

Volume

L/RTONE

AUX JACK

Q12,14

Mute

L/R

EAR_Amp

L/R

Pre_Amp

Q18,20

DC JACK

JK302

Power on

D301

5.1V ON

KEY Mattry

Switch

IC6 , L2

P7,20,30

Module

SW 2 - 12

BLOCK DIAGRAM

ALL PCB TOP VIEW

ALL PCB BOTTOM VIEW

WRING DIAGRAM

TROUBLESHOOTING FLOW CHART

Power can not be turned on

Yes No

Check whether the Radio

is in Standby(DC IN)

Check whether the Pin1

of IC1 is VCC.

Check whether the Pin14

of IC1 is VCC.

No Yes

Yes

Check whether the Pin6 of

GRYO-1128Module is 3.0V Check Q10,Q11

Check IC1,SW1,Q16and

D15.

Yes

No Yes

Check whether the Q13

“C” is VCC.

Check Q6, Q7, Q13, D3,

D7,D8 and D13.

Check D301,W1,CN300

And DC JACK

Yes

Check whether the Pin5 of

IC4 is 3.3V.

Check Pin1 of IC4 is VCC

and check L3, R99 and

R100. Check Adaptor

Yes

No No

Check whether the Pin2 of

IC6 is 1.2V.

Check Pin5 of IC6 is 0.7V

up.

Check Pin6 of IC6 is VCC

and check L4, R109 and

R110.

Yes

Check whether the Pin8 of

GRYO-1128Module is 1.2V

and Pin1

3 is 3.3V.

Yes

Check the MODULE.

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