Daewoo DC-F84D1D Service Manual - Advantages of This Product

Summary of DC-F84D1D

  • Page 1

    S/m no. : vdcb83pet1 may. 2006 service manual model: dc-f84d1d dc-f84d1s dc-f8gd1d dc-f8gd1s dc-f8hd1d dc-f8hd1p dc-f8hd1s sf-7200 sf-7500 sf-9200s sf-9300 sf-9300p sf-9300s sf-9500p sf-9500s.

  • Page 2: Contents

    1 specifications ...............................................................................................................2 advantages of this product....................................................................................3 trouble shooting.............................................

  • Page 3: Specifications

    2 specifications disc type dvd video-cd cd analogue audio output 48/96khz sampling 44.1khz sampling 44.1khz sampling digital audio output 48khz sampling 44.1khz sampling 44.1khz sampling output power 200-240v~, 50/60hz consumed electricity 20w weight 4.6kg dimension (w x h x d) 435mmx93mmx255mm oper...

  • Page 4: Advantages of This Product

    Advantages of this product 3 • dvd, vcd, cd, cd-r(mp3), divx, cd-rw, vhs • watching dvd for recording broadcast • integrated remote control (vcr, dvd) • viss function • multiplex sound playback/record • high sound quality of 6 head hi-fi • simple record function • mp3/jpeg file playback function (cd...

  • Page 5

    4 advantages of this product • parental lock function (dvd) this function can prevent playback of software that may be unsuitable for children. • multi audio function (dvd) the audio soundtrack can be heard in up to 8 languages. In the case of svcd or vcd, it depends on the disc. (the number of audi...

  • Page 6: Troubleshooting

    5 troubleshooting 1. Power circuit ✓ caution you must use insulated transformer during the first part test of power circuit. Check ic501, ic701 no power power cord is ok? Is 400v~200v voltage obtained at c804 +? Output voltage of 2 nd parts is normal? Check rectifier diode of 2 nd parts ; d821, d822...

  • Page 7

    2. System circuit 6 troubleshooting no led display. Is 5v obtained at ic701 pin #9, 25? Oscillation at ic701pin #1? Specific grid/seg doesn t function. Check r588, d857, l503, l860 exchange ic701. Check ic 701 pin #22~24, 27, 28, 30, 31. Check ic 701 pin #10~12, 14~21. No yes yes no no grid output a...

  • Page 8

    7 troubleshooting noise appears on the playback screen. Is noise diminished by tracking adjustment. Noise band is trembled up and down? Re-adjust path. Is the height of ctl head normal? No dust? Is there problem in ctl input circuit and amplifier. Yes no no no is there ctl pulse at ic501 pin#97? Che...

  • Page 9

    8 troubleshooting no broadcasting signal received is the output at ic501 pin# 61(clk), 60 (data) normal? Is sif,video output at tmi(rf101) pin#16,19 normal? Check ic 501. Check ic301. Check ic501. Yes yes no no no is video signal input at ic501 pin#50? Is there video output at ic501 pin#52? Check tm...

  • Page 10

    9 troubleshooting cassette tape isn’t inserted. Is 5v voltage obtained at loading parts ic501 pin#2? Is 14v voltage obtained at capstan motor p501 pin#2? Check at ever 14v check q850. Connect capstan and loading motor. Check connector and capstan motor. Yes no no no is 13v voltage obtained at each p...

  • Page 11

    10 troubleshooting f. Drum motor stops g. Capstan doesn’t rotate capstan doesn’t rotate. Is ever 14v voltage obtained at p501 pin#2? Yes no no no yes yes is capstan pwm fit to ic501 pin#77? Is 3.2v voltage obtained at p501 pin#5? Is 2.7v voltage obtained at p501 pin#9? Check p501 connector and capst...

  • Page 12

    11 troubleshooting 3. Video circuit a. Ee screen doesn’t appear ee mode picture ng is video signal input at ic301 pin#48,50,52,54? Is 5v supplied at pin#42,55,72,91of ic301? Is c.S, data, clock signal input pin#67,68,69 of ic301? Check if and line in jack. Check power circuit. Check ic501 pin #58,71...

  • Page 13

    12 troubleshooting b. Playback picture doesn’t appear yes yes is y signal output at ic301 pin#46? Is video signal output at ic301 pin#65? Check and replace ic301. Pb video signal missing. Is envelope output from ic301 pin#79? No no same as ee mode check. Is 5v supplied at ic301 pin#91? Is sw pulse i...

  • Page 14

    13 troubleshooting is +5v supplied at ic301 pin#91? No no yes yes is video sw pulse input at ic301 pin#70? Is rec signal output from ic301 pin#94,95,89,90? Lp mode: 89,90 pin sp mode: 94,95pin check video head and connector. Is signal input into ic301 pin# 48,50,52,54,56? Check power circuit. Check ...

  • Page 15

    14 troubleshooting no is video signal input at ic501 pin#50? Check power circuit. No osd appears. Is 5v obtained at ic501 pin# 53, 98, 99? Is video signal output at ic501 pin#52? No replace ic501. D. No osd(on screen display) appears yes yes no check ic 501. Check ic 501. No check pcb pattern check ...

  • Page 16

    15 troubleshooting 4. Audio (hi-fi model) no sound in rf e-e mode is audio signal output at ic601 pin #3, 13? A. No sound in e-e mode a. Rf e-e check ic501. Is audio signal output at ic251 pin#16,17? Are clk and data obtained at ic251 pin#42,43? No is 5v obtained at ic251 pin#40? Replace ic251. Yes ...

  • Page 17

    16 troubleshooting b. Av1 e-e no sound in av1 e-e mode. No check input av1 jack is audio signal at ic251 pin#6, 7? Is audio signal output at ic601 pin #3, 13? Check ic501. Is audio signal output at ic251 pin#16,17? Are clk and data obtained at ic251 pin#42,43? No is 5v obtained at ic251 pin#40? Repl...

  • Page 18

    17 troubleshooting c. Av2 e-e no sound in av2 e-e mode. No check input av2 jack is audio signal at ic251 pin#8, 9? Is audio signal output at ic601 pin #3, 13? Check ic501. Is audio signal output at ic251 pin#19, 20? Are clk and data obtained at ic251 pin#42,43? No is 5v obtained at ic251 pin#40? Rep...

  • Page 19

    18 troubleshooting d. Dvd e-e no sound in dvd e-e mode. Check ffc(19p or 11p) fix the ffc(19p or 11p) no is audio signal output at ic601 pin #3, 13? Check ic501. Yes replace ic601. Comparing with switching table, are swa, b ctl signal right at ic601 pin #9,10? No check output jack. Yes yes no.

  • Page 20

    19 troubleshooting is audio signal at ic601 pin#1, 12? Check input front jack. No is audio signal output at ic601 pin #3, 13? Check ic501. Yes replace ic601. Comparing with switching table, are swa, b ctl signal right at ic601 pin #9,10? No check output jack. Yes yes no e. Front e-e no sound in fron...

  • Page 21

    20 b. No hi-fi playback audio(play mode) no check a.Sw at ic501 pin#19. Is audio signal at ic251 pin#41? Is audio signal output at ic601 pin #3, 13? Check ic501. Is audio signal output at ic251 pin#16,17? Are clk and data obtained at ic251 pin#42,43? No is 5v obtained at ic251 pin#40? Replace ic251....

  • Page 22

    21 c. No hi-fi playback in record/playback mode (rec mode) are there audio signal at ic251 pin#4~9? Is fm osc signal at ic251 pin#36? Check input line1 jack. Check input line2 jack. Check icd03(dvd). Replace drum. Yes no no no is fm osc signal at p401 pin#2? Replace ic251 yes head cleaning. Yes d. N...

  • Page 23

    22 troubleshooting e. No normal audio playback in record/playback mode(check in rec mode) no normal audio playback in record/playback mode are there audio signal at ic251 pin#4~9? Is there recording signal at ic251 pin#21? Check input line1 jack. Check input line2 jack. Check icd03(dvd). Check signa...

  • Page 24: Waveforms

    23 waveforms 1. Video ! (ic301-70) 5vp-p 1v/2msec/cm rec ! (ic301-70)5vp-p 1v/2msec/cm play @ (ic301-46) 520mvp-p 200mv/5usec/cm rec @ (ic301-46) 520mvp-p 200mv/5usec/cm play # (ic301-43) 520mvp-p 100mv/5usec rec # (ic301-43) 520mvp-p 100mv/5usec play $ (ic301-21) 600mvp-p 200mv/2msec/cm play(sp) vi...

  • Page 25

    24 waveforms 2. Audio 2-1 audio(normal) 2-2 audio(hi-fi) * (ic301-15) 100mvp-p 20mv/0.5msec/cm rec ( (ic301-11) 1.5vp-p 0.5v/0.5msec/cm rec ) (ic301-100) 2.3vp-p 0.5v/0.5msec/cm rec 1 (ic301-8) 120mvp-p 50mv/0.5msec/cm play 2 (p202-2) 75vp-p 10v/20 µ sec/cm rec 3 (ic251-2) 80mvp-p 20mv/0.5msec ee/re...

  • Page 26

    25 waveforms 3. Servo/syscon 8 (ic501-18) 5vp-p 2v/5msec/cm rec/play 9 (ic501-77) 5vp-p 2v/5 µ sec/cm rec/play 0 (ic501-76) 5vp-p 2v/5 µ sec/cm rec/play “ (ic501-94) 3vp-p 1v/5msec/cm rec ‘ (ic501-97) 4.4vp-p 1v/5msec/cm play + (ic501-90)25vp-p&5vp-p 1v/5msec/cm rec/play = (ic501-87) 2.5vp-p 1v/0.2m...

  • Page 27

    26 circuit diagram 1. Power circuit diagram.

  • Page 28

    27 circuit diagram 2. Servo & syscon circuit diagram.

  • Page 29

    28 circuit diagram 3. A/v circuit diagram.

  • Page 30

    29 4. Hifi & sw & input circuit diagram circuit diagram.

  • Page 31

    30 circuit diagram 5. Hi-fi & pif & input circuit diagram.

  • Page 32

    31 circuit diagram 5 5 4 4 3 3 2 2 1 1 d d c c b b a a v18 avcc mo_vcc1 dv33 pllvdd3 gnd adacvdd3 rfv33 apllvdd3 dacvdd3 aadvdd3 fvcc rfv18 rfvdd3 rfv18 mo_vcc1 fvcc avcc apllvdd3 rfv33 pllvdd3 dacvdd3 aadvdd3 adacvdd3 rfvdd3 dv33 v60 v33 v18 v33 urst# gnd [2,3,4,5] dv33 [2,3,4,5] apllvdd3 [2] rfv18...

  • Page 33

    32 circuit diagram 5 5 4 4 3 3 2 2 1 1 d d c c b b a a iic video flash audio memory rs-232 interface option for 5.1 ch f/w ver. View if cs = low(gnd) from pcb function jig place on bottom surface apllied for daewoo mt1389d project 1 sqaure wave option pce# ma[0..11] ad[0..7] aspdif prd# pwr# a[0..20...

  • Page 34

    33 5 5 4 4 3 3 2 2 1 1 d d c c b b a a s c 2 e very important to reduce noise 2n7002mtf 1 d 2 b g 3 c kta1271 (pnp,dip) 1 c 2n3904(npn) b 3 e 2 2sb1132(pnp) 1 3 2 e b c top d a p/up connection b p/up mpeg b a c c d fo+ fo- v1p4 tr- tr+ opo v1p4 v30 dv33 rfv33 mo_vcc1 avcc v18 test opo gnd v1p4 trout...

  • Page 35

    34 circuit diagram 5 5 4 4 3 3 2 2 1 1 d d c c b b a a ad2 we# dq3 ma[0..11] cs# dq8 a18 prd# gnd dq0 ad7 dq14 a7 ad1 ad4 a16 a17 ba[0..1] a13 a14 pce# ma3 dv33 ma6 dqm1 ma11 a11 a3 ma10 dcke ad5 pwr# a5 dqm[0..1] dq9 dq2 a12 ad0 ma2 dq15 dq4 ma5 dclk dq12 dq10 ma4 ad3 dq13 a0 prd# a2 dq1 a1 dqm0 a1...

  • Page 36

    35 circuit diagram 5 5 4 4 3 3 2 2 1 1 d d c c b b a a 1. Option for 5.1 ch 2. Not use in pal model audio video option for 5.1 ch interface apllied for daewoo mt1389d project vb v30 v33 gnd s_y r s_c b cvbs gnd g r g v60 cvbs +p12v ir vstb opref gnd al vsck fll frr vsda gnd ar gnd aspdif gnd gnd +p1...

  • Page 37

    36 pcb circuit board 1-1 . Vcr (main).

  • Page 38

    37 pcb circuit board 1-2. Power.

  • Page 39

    38 pcb circuit board 1-3. Dvd (main).

  • Page 40: Instrument Disassembly

    Instrument disassembly 1. Deck disassembly perform all disassembly procedures in the order presented. When reassembling, use the reverse procedure. Make sure that all leads/ wiring are routed correctly when reassembling. Fig. 1 a. Top cover removal @ remove a screws ! Remove three screws # remove a ...

  • Page 41

    40 b. Panel front disassembly c. Logic pcb disassembly fig.2 fig.3 ! Remove 3 hooks at bottom @ remove 2 hooks at left and right sides, simultaneously, remove panel. Remove 2 screws, then remove logic pcb instrument disassembly.

  • Page 42

    41 instrument disassembly fig. 4 d. Deck and main parts disassembly ! Remove 6 screws, then remove deck @ remove 4 screws, then remove loader # remove 3 screws, then remove power pcb.

  • Page 43

    42 instrument disassembly fig. 5 e. Main pcb disassembly @ remove 2 screws, then remove main pcb ! Remove 2 screws.

  • Page 44

    43 instrument disassembly f. Main chassis disassembly fig. 6 ! Remove 4 screws, then remove main chassis.

  • Page 45

    44 instrument disassembly g. Explode view no part name part no. Q ty material remark 1 dvd vcr cover top 97p0483505 1 secc t0.5+paint (5 screw hole) 2 screw tapptite 7173300812 5 tt2 bin 3x8 bk cover top fix 3 cushion top plate 97p4219700 1 eva(soft) t=1 175*8 4 screw tapptite 7173401212 2 tt2 bin 4...

  • Page 46: Electrical Partslist

    45 electrical partslist loc parts code parts name parts descr remark 03 pvmcase531 chassis main as dc-s86d1d-nb/i a001 97p0612700 chassis main hips(hb) a002 97p93617d0 label spec pe film(131*47) a003 97p0992902 plate a/v back pvc t0.3 a005 97p0482801 cover bottom secc t0.8 a0051 97p4220000 cushion l...

  • Page 47

    46 electrical partslist loc parts code parts name parts descr remark c314 hcbk103kba c chip cera 50v x7r 0.01mf k 1608 c315 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 c316 hcqk561jba c chip cera 50v ch 560pf j 1608 c317 hcqk131jba c chip cera 50v ch 130pf j 1608 c318 hcff105zba c chip cera 16v y5v ...

  • Page 48

    Loc parts code parts name parts descr remark q309 t2sc2412kb tr chip 2sc2412k-t146-br q310 t2sc2412kb tr chip 2sc2412k-t146-br q311 t2sc2412kb tr chip 2sc2412k-t146-br q333 t2sa1037kb tr chip 2sa1037akt146-r qd03 t2sc2412kb tr chip 2sc2412k-t146-br qd04 t2sc2412kb tr chip 2sc2412k-t146-br qd50 t2sa1...

  • Page 49

    Loc parts code parts name parts descr remark r606a hrfs750jba r chip 1/16 75 ohm j 1608 r607 hrfs512jba r chip 1/16 5.1k ohm j 1608 r608 hrfs512jba r chip 1/16 5.1k ohm j 1608 r611a hrfs750jba r chip 1/16 75 ohm j 1608 r613 hrfs750jba r chip 1/16 75 ohm j 1608 r614 hrfs750jba r chip 1/16 75 ohm j 16...

  • Page 50

    Loc parts code parts name parts descr remark c152 cexf1h109a c electro 50v rsm 1mf (4x7) tp c154 cexf1h109a c electro 50v rsm 1mf (4x7) tp c158 cexf1h479a c electro 50v rsm 4.7mf 4x7 c201 cexf1c100a c electro 16v rsm 10mf 5x7 c204 cexf1c220a c electro 16v rsm 22mf (5x7) c205 cexf1c470a c electro 16v...

  • Page 51

    50 electrical partslist loc parts code parts name parts descr remark l603 5cpx100j2t coil peaking 10uh(brn-blk) l853 56c220k686 coil choke 22uh k 27.5x0.4d l860 56c220k686 coil choke 22uh k 27.5x0.4d ld02 5cpx101j2t coil peaking 100uh(brn-brn) ld03 5cpx680j2t coil peaking 68uh(blu-blk) ld04 5cpx101j...

  • Page 52

    51 electrical partslist loc parts code parts name parts descr remark l604 5cpz229k02 coil peaking 2.2uh k(axial 3.5mm) l605 5cpz229k02 coil peaking 2.2uh k(axial 3.5mm) l606 5cpz229k02 coil peaking 2.2uh k(axial 3.5mm) l612 5cpz229k02 coil peaking 2.2uh k(axial 3.5mm) l613 5cpz229k02 coil peaking 2....

  • Page 53

    52 loc parts code parts name parts descr remark rd50 rd-az221j- r carbon film 1/6 220 ohm j rd51 rd-az221j- r carbon film 1/6 220 ohm j rd52 rd-az221j- r carbon film 1/6 220 ohm j rd54 rd-az101j- r carbon film 1/6 100 ohm j rd56 rd-az101j- r carbon film 1/6 100 ohm j rd57 rd-az101j- r carbon film 1/...

  • Page 54

    Loc parts code parts name parts descr remark cm13 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cm14 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cm15 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cm16 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cm17 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cm18 hcfh1...

  • Page 55

    Loc parts code parts name parts descr remark cb44 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cb45 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cb46 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cc24 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cc31 hcfh104zba c chip cera 25v y5v 0.1mf z 1608 cc37 hcqk3...

  • Page 56

    55 electrical partslist loc parts code parts name parts descr remark m1000 pvdkarpb66 deck vcr as(t50,f/l) drp-b610r non a0100 97sa332200 main base as t4.5-mecha a0101 97s3102000 screw tapptite tt2 bin-p 2.6x7 mfzn capstan m/t fix a011 97p93b2102 label cd(deck) paper(13x56) all model a0200 97sa31650...

  • Page 57

    56 electrical partslist loc parts code parts name parts descr remark m200 pvldasbd02 dvd mecha as combo,sankyo v3.5,ffc 135mm na01 97la108600 main chassis as ddm-4000 na02 97p93b2104 label cd(dvd mecha) paper(9x25) all model na07 97la109200 comb pcb as(c) ddm-4031 nb07 97l6505200 pcb combination 40x...

  • Page 58

    57 electrical partslist.

  • Page 59

    Daewoo electronics corp. 686, ahyeon-dong, mapo-gu, seoul, korea. C.P.O. Box 8003 seoul korea printed date: may. 2006.