Daewoo MC-5920SC User manual

Contents
MC-5920SC MODEL
SERVICE MANUAL
Product Specifications
Product Spec
Block Diagram
Alignment Procedure
Wiring Diagram
PCB Layouts
Circuit Schematic
Exploded View
Voltage Chart
Part List

>CD/CDR/CDRW/CDMP3/WMA Player
* PACKING :
> PACKED BY POLYBAG
>USB/SD Player
> 4 COLOUR GIFT BOX WITH
POLYFOAM 4pcs/CTN (TBC)
>PLL FM radio
> ENGLISH INSTRUCTION BOOK
>Alarm Clock function
* DIMENSION : (PRELIMINARY)
>Electronics CD door open / close
> UNIT : 215.9mm x 124.5mm (H) x 43.2 mm(w/o footstand)
x 68.6mm (w/ footstand)
>LCD display
>5 x Blue color LED for lighting effect (on/off)
>Aux in jack for any MP3 player
>Slim type switching power supply
2
>2W + 2W max power output
>Full function remote control
Product Specifications
* Product Features:

3
.onelpmaS10VlareneG-----)UC(.cepStcudorP
Model no:MC-5920SC
*HQHUDO&RQGLWRQ
5HI23 P:/RDGLQJ RKP6XSSO\ 9'&9$&+]
amroNtinUdohtemgnitseTnoitpircseDmetI
l
Limit 1# 2# 3# 4# 5#
SSAPSSAPSSAPSSAPSSAPSSAP%03-/01+yrettaBroF,%01-/+V032CAeporuEroFegatlovgnitarepo1
052<Autnerrucyrett
abkcehC,tupniCD/CAON,fforewoP)ybdnats(tnerrucybdnatS2   17 16 16
3 Clock accuracy sec/d +/-2 0.8 0.8 0.7 0.7 0.6
04-0CgedegnarerutarepmetnoitarepOegnareruta
repmeT4
5 Remote distance M>7
9999
6 SUBWOOFER OUT @784, 100HZ, 0dB / @FM Mod 75K , 100hZ Subwoofer loading @47K
o
mVrms >40     

4
.onelpmaS10VDC-----)UC(.cepStcudorP
Model no:MC-5920SC
*HQHUDO&RQGLWRQ
5HI23 P:/RDGLQJ RKP6XSSO\ 9'&9$&+]
amroNtinUdohtemgnitseTnoitpircseDmetI
l
Limit 1# 2# 3# 4# 5#
006>ANmuflah.lov-8,7krtA444@hctarcS1 1000 1000 1000 1000 1000 006>ANmuflah.lov41krtA444@stodkcalb2 800 800 800 800 800
57ANmuflah.lov-91,81krtA4
44@stnirpregnif3 75 75 75 75 75
tenibaChctacSoNflahlov,137-DCT@noitaivedlacitrev4 pass pass pass pass pass
ssapllaflahlov,217-DCT@yticirtnecc
e5 pass pass pass pass pass
218cesflahlov,487@COT6 10 10 11 11 10
218ces1-22krt,22-1krt,flahlov,487@emitsseccA7 910 9 8 8
5.1<ces2-1krt,flahlov,487@e
mitsseccAtrohS8 11111
15.0%retlifssapwolhtiw,fer=lov,zhk12krt,487@noitrotsid9 0.75  0.8 0.8 0.8
0454Bdfer=lov,zhk1,03krt,c
siDdradnatS@noitarepesR/L01 43 48 44 46 48
5405Bdfer=lov,zhk1,1krtcsiDdradnatS@oitarN/S11 54 56 56 57 56
12 Min Vol Hum AC input / Adaptor , @784 tk7, Min vol, use Adaptor mV NA <8 0.85  0.7 0.75 0.8
<35.0Bdfer=lov,zhk1,
1krtcsiDdradnatS@ecnalablennahc31 0000
/////ferferBdfer=lov,zhk1,73krtcsiDdradnatS@esnopserycneuqerf41
3-
/+0Bdzh001,63krtcsiDdradnatS@)talfQE( 0+0.5 0 +2 +2
3-/+0Bdzhk01,83krtcsiDdradnatS@ -2.5 -2.5 -2.5 0 0
2>ANWxamlov,zhk12krt,487@tupt
uorewopxaM51 2.89 2.72 2.72 2.89 2.89
CDRW
ssapllaFLAHLOV,51dna1KRTW280WDCT@noitcelferhgihWR61 pass pass pass pass pass
MP3
023-23023-23023-23023-23023-23023-
23spbKcsidtset3pMdradnatS@etartib3PM71
ssapssapssapssapssapSSAPspbKcsidtset3PMRBVdnatS@etartibRBV3PM81
023-23023-23023-23023-23023-23023-23spbKcsidtsetAMWdradnatS@etartibAMW91

5
.onelpmaS10VMF-oidaR----)UC(.cepStcudorP
Model no:MC-5920SC
*HQHUDO&RQGLWRQ)0'HY.K]02' .K]/730K]0730K]+73073
5HI23 P:/RDGLQJ RKP6XSSO\ 9'&9$&+]
amroNtinUdohtemgnitseTnoitpircseDmetI l Limit 1# 2# 3# 4# 5#
1 Frequency range Low Mhz 87.5 +/-0.5 87.5 87.5 87.5 87.5 87.5
High Mhz 108 +/-0.5 108 108 108 108 108
2 Frequency step Khz 50Khz 00 000 3 30dB s/n u@MTP, vol@ref , #sig-O&F@MTP>s/n@max dbuv 20 26 9/9/8 8/8/9 8/8/8 10/10/10 8/9/10
4 Dial Calibration All points on Dial printing Mhz +/-0.7 00000
5 -3dB Freq. Response sig-F@MTP 60dBuV, Preamp 75us(USA),vol=ref, ^sig- AF=A >o/p v 3 dB, v sig-AF=B>Ohz 100 200 65  72 67 63
Frequency response = A and B hz 12k 8k 16k 13 13k 15k 15k
6 min. volume Hum AC supply / Adaptor, u@MTP , sig@MTP , 60dBuv mv NA < 8 0.75 0.6 0.55 0.6 0.6
7 S/N ratio (Mono) u@MTP, vol@ref, sig@MTP 60dBuv db 43 37 42  46 40 42
8 distortion@ 22.5Kc u@MTP , sig-F@MTP 1mV, #vol=ref,#distortion meter=1khz>THD=min. %1 2 0.65  0.7 0.7 0.64
9 Stereo THD With A weighted filter, u@MTP, sig@MTP, 60dBuV % NA 6< 0.65  0.7 0.95 0.85
10 Max output Power u@MTP , sig-F@MTP 60dBuv, 1khz, ^ dev, vol=max>O/P=A, power =AxA/speaker ohm W NA >2 2.25  2.56 2.89 2.72
11 Auto search accuracy Full frequency range, sig-O@25dBuV and 60dBuV step +/-1 0
12 Auto search sens sig@LTP , mod 22.5k , auto search from lower OR upper side ,Repeat test for HTP ,MTP dbuv 24 30 18/18/18 18/18/18 17/18/18 17/18/19 17/18/18
13 Stereo seperation With A weighted filter, sig@MTP, 60dBuV dB 28 20 34 35 34 37 37
14 Stereo indicatior sense u@MTP, sig-F@MTP, ^sig-O=A> Stereo indicator light ON dBuv 24 30 14 13 15 14 21
Result

6
.onelpmaS10VMA-oidaR----)UC(.cepStcudorP
Model no:MC-5920SC
*HQHUDO&RQGLWRQ$002' .K]/73NK]073NK]+73NK]
5HI23 P:/RDGLQJ RKP6XSSO\ 9'&9$&+] Result
amroNtinUdohtemgnitseTnoitpircseDmetI l Limit 1# 2# 3# 4# 5#
1 Frequency range Sig-O@80dbuv/m Vol@ref khz 522 +/-5 522 522 522 522 522
khz 1620 +/-5 1620 1620 1620 1620 1620
2 Max. sens u@LTP , vol@max , ^sig-O> O/P=ref dB/M 54 60 58 59 56 57 56
3 20dB s/n u@LTP , vol@ref , #sig-F@LTP>s/n@max,=> ^sig-O=A > O/P = 20db s/n dB/M 62 68 57/58/56 58/56/57 60/59/56 59/58/58 58/57/55
4 Dial Calibration check all points on dial scale Khz +/-40 +/-80 00000
5 Distortion u@MTP , sig@MTP ,94dB/M, #vol>o/p=ref % 1 2 1.1 1.1 1.1 1 1.2
6 Max. O/P power u@MTP, sig@MTP, Mod ^, 94dB/M, ^vol=max W NA >2 2.89 2.89 2.89 3.06 2.89
7 AGC u@MTP, sig@MTP, mod 30%,94dB/M, vol = ref, v sig-O= x > O/P v =ref - 10dB , AGC = db 45 40 55 57 56 57 54
8 Frequency response u@MTP ,sig@MTP,94dB/M, vol =ref O/P, ^sig-AF =A> O/P v 3dB, v sig-F=B> O/P v 3dBhz 100 200 74 68 72 71 79
High Khz 2 1.8 1.9 2.0 2 2 2
9 Min. Vol Hum AC I/P / Adaptor , u@MTP, sig@MTP,100dB/M, Vol=0 mV NA <8 0.65 0.65 0.55 0.9 0.65
 S/N u@MTp, sig@MTP, 94dB/M, Vol=ref O/P dB 35 30 42  43 42 42
11 Auto search accuracy Full frequency range, sig-O@74dB/M and 94dB/M step +/-1 0 0 
12 Auto search sens sig@LTP , auto search from lower OR upper side ,Repeat test for HTP ,MTP dB/M 68 76 56/58/59 60/60/61 60/59/61 61/59/62 61/58/60

7
.onelpmaS10V1oiduA-----)UC(.cepStcudorP
Model no:MC-5920SC
*HQHUDO&RQGLWRQ
5HI23 P:/RDGLQJ RKP6XSSO\ 9'&9$&+]
amroNtinUdohtemgnitseTnoitpircseDmetI
l
Limit 1# 2# 3# 4# 5#
LINE IN
8<Vm0=loV,tupniCAtAmuH1 0.65 0.6 0.55 0.6 0.6
5304Bdzhk1,smrVm003NIENILnoitarepeslennahC2 39 42 41 39 41
3 -3dB frequency response LINE IN 300mVrms, set 1khz =0dB, vol=ref
Low End Hz 100 150 60  58 48 44
High End Hz 16K 15K 32k 33k 34k 37k 38k
2<1%fer=loV,zhk1,smr
Vm003NIENILnoitrotsiD4 0.56  0.6 0.55 0.52
<3ANBdfer=lov,zhk1,Vm003NIENILecnalablennahc5 0.5  0.4 0 0
2>ANWxam=loV,zhk1,smrVm006NI
ENILrewoptuptuOxaM6     
Earphone Output
003054VMxamloV,zhk1K57=domMF/2krT,487@rewoptuptuO7 400 390 380 400 400
<25.0Bdfer=lov,zhk1K57domMF
/zhk1,2KRT,487@ecnalablennahc8 0000
9 Hum At AC input / Adaptor , @784 , TRK2, Pause, Vol=max / @Fm 1khz tone mVrms NA <1 0.2  0.1 0.15 0.18
USB/SD
8<ANVm0=loV,tupniCAtAmuH01 0.82 0.7 0.65 0.7 0.7
5304Bdzhk1,Bd0LnoitarepeslennahC11 41 43 42 48 50
12 -3dB frequency response set 1khz =0dB, vol=ref
100Hz dB +/-3 +1 +0.5 -1 1.5 2
10KHz dB +/-3 0 -2.5 -2.5 0 0
2<1%fer=loV,krtbdozhk1noitrotsiD31 0.55  0.75 0.75 0.72 2>ANWxam=loVbdozhk1rewoptuptuOxaM41     
<3ANBdfer=lov,zhk1,B
d0ecnalablennahc51 0000

Block Diagram
8

Wiring Diagram
9

Main PCB (Top Layer)
PCB Layouts
10