- DL manuals
- Daewoo
- Portable DVD Player
- DPC-7400 Series
- Service Manual
Daewoo DPC-7400 Series Service Manual
Summary of DPC-7400 Series
Page 1
No.: revision: 0.1 date: service manual for portable dvd dpc-7400 series name of company daewoo electronics corp. Approved by signature / date approved by date / reviewed by / prepared by elliott chang please return 1 copy for our confirmation with your signature and comments..
Page 2: Revision Record
Revision record date rev no section description 17/ oct./ 2005 0.1 new edition design and specifications are subject to change without notice. All trademarks used in the specifications are the property of their respective owners..
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1. General descriptions …………………………………………………… 1.1. Model features … … … … … … … … … … … … … … … … … … … … … … … … … . 1.2. Information … … … … … … … … … … … … … … … … … … … … … … … … … … … 2. Electrical characteristics……………………………………………… 2.1. Optical characteristics … … … … … … … … … … … … … … … … … …...
Page 4: 1 General Descriptions
- 1 - 1 general descriptions 1.1 model features video: dvd playback, mpeg4(option) ,divx(divx model),kodak picture cd compatible & jpeg readable audio: cd, cd-r, cd-rw, mp3, wma playback firmware upgradable dolby digital output 7" active-matrix tft screen, 16:9 wide aspect ratio composite video outp...
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- 2 - 1.2 information disk format dvd, vcd, cd, mp3, cd-r, cd-rw, mpeg4 (option), divx(divx model), wma video system ntsc / pal/auto video decompression mpeg-2 (iso/iec-13818), mpeg-1 video output 800~1200mvpp/75 ohm audio characteristic 2-channel analog analog output 1.0~2.0vrms/10k ohm frequency r...
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- 3 - 2 electrical characteristics 2.1 optical characteristics parameter specifications unit screen size 7.0 (16:9 diagonal) inch display format 1400 (h) 234 (v) dot active area 154.08 (h) 86.08 (v) mm dot pitch 0.107 (h) 0.370 (v) mm pixel configuration stripe outline dimension 166.0 (w) 100.0 (h) ...
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- 4 - 2.3 system block diagram 2.3.1. The system block diagram & the block's function description dc to dc mp1580 1. Loader dm-520a 2. Servo +mpeg mt1389d/mt1389c display 7” tft lcd pw070xu3 inverter tft lcd driver ir3y29b +hx8806.
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- 5 - 2.3.2 schematic circuit diagram ( 1 ) p o w e r _ m p s 1 deleta 9vin +3.3v +5v nctr_5v ctr_5v ldo_av33 rfv33 nctr_5v 9vin +5v +3.3v ctr_5v nctr_5v +3.3v rfv33 +3.3v ldo_av33 rm4 39k qm 1 open/3904 1 2 3 um1 mps1580 1 2 3 4 8 7 6 5 bs vin vsw gnd sync en comp fb cm7 220uf/6.3v/lu d1 led1 1 3 2...
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- 6 - (2) power for tft 1 1 1 1 1 1 1 -10v_tft +15v_tft +7.5v_tft vsync# powdet_mcu +3.3v_tft +5v_tft +5v_tran vin +3.3v +5v v18 +3.3v_tft +5v_tran 9vin vout 9vin ctr_load ctr_audio powdet_mpeg ctr_tft5v powdet_mcu +5v_tran hsync# vcc +5v_tft +7.5v_tft +3.3v_tft -10v_tft vcc +15v_tft +3.3v v18 +3.3v...
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1 1 1 1 tr- 10 vr gnd gnd c c 8 9 11 b gnd rs-232 3 24 6 19 5 pd 17 vcc v1.7 18 b c 15 vs(vc) ld(dvd) hop1200/1200n(1240) d 16 a 1 14 1 gnd(nc) 2 vr f 7 20 e 12 vcc 21 fo+ very important to reduce noise 22 2sb11 32 vrf(1.4v) 23 tr+ hitachi hop1200/1200n(1240) c15 closed to pin186 pd(monitor) ld(cd) ...
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- 8 - (4) sdram&flash&eeprom tsop 48 pin iic dram flash 16mb 32mb 8m 16m 32m fla sh delete dq[0..15] ad[0..7] ba[0..1] dqm[0..1 ] ma[0..1 1] a[0..21] a9 a3 ad 3 a1 a1 9 a4 ad 6 ad 1 a1 7 a1 6 a1 3 a1 4 ad 0 a2 a6 a8 a1 8 ad 7 a7 ad 5 a1 2 a1 5 a1 0 ad 2 ad 4 a1 1 a5 a0 ras # pce# cas # prd# dcke sda...
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- 9 - (5) video output 1 1 tft i/o 2n3904 3 c e 2 b 1 tft_cvbs -10v_tft 9vin +3.3v_tft +7.5v_tft +15v_tft +5v_tft aspdif y[3..6] cvbs_tft video_tv int/ext p/n aspdif +5v_tran tft_out tft_cvbs svideo_y svideo_c scale video_tv tft_out cvbs_tft cvbs_out p/n scale +5v_tran +5v_tft +5v y3 y4 y5 cvbs_out ...
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- 10 - (6) audio output 1 1 1 vref5v vccaud vref5v vref5v a_in/outr a_in/outl aclk mute_dac alrck aclk abck asdat0 sdat0 saclk slrck alrck sbclk abck asdat0 dac_ml saclk sbclk a_avdd slrck dac_mr sdat0 +3.3v a_in/outl aout_r vcc int/ext a_mute shutdown cvbs_tft tft_out cvbs_out cvbs_tft tft_out cvbs...
Page 14: 3 Power
- 11 - 3 power 3.1 power supply input voltage: normal voltage: 100 to 240 vac. Variation range: 90 to 264 vac. Input frequency: normal frequency: 50 to 60 hz. Variation range: 47 to 63 hz. Input current: 0.6 arms max. At any input voltage and max. Dc output rated load. Inrush current: 70 amps max. C...
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- 12 - the battery pack shall return to normal operation only after the fault has been removed. A thermal fuse must be added on the surface of cell body to protect the battery pack. A polyswitch must be add to protect the battery pack. Charge & play time of battery pack charge time (hr) dvd title pl...
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- 13 - 4 dimension & physical characteristics 4.1 outline dimension 200mm(l) x 155mm(w) x 38mm(h) 4.2 physical characteristics.
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Drawn: no - 14 - 4.3 exploded view.
Page 18: Regulatory
- 15 - 5 regulatory standards 5.1 safety ul fda 5.2 emi ce fcc 5.3 ergonomics dolby - 15 - lvd.
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- 16 - 6 service tools and equipment 6.1service tools and equipment table application name dvd testing disc general general tools screwdriver etc. Cd testing disc confirm vcd testing disc oscillograph probes av cables adjust tv monitor searing-iron antistatic wrist strap grounding for electrostatic ...
Page 20: 6.3 Notes
3. Do not place the disc on a glass surface. It may damage the disc. If this happened, please use a new testing disc adjust dvd player precision. 6.3 notes please read all notes given in this manual. ■ locate ● place the unit on a firm, flat surface. ● do not place in a high temperature (upwards of ...
Page 21
- 18 - or death. ● this unit should be situated away from heat source, such as amplifiers, radiators, stoves or any other units producing heat. ■ condensation lens could be moistening in these cases. ● turn on heater shortly, ● in a very wet room, ● move the player from a cold environment to a heat ...
Page 22: Spare Parts
- 19 - 7 spare parts 7.1 key parts list location part no part name description maker remark gkb2.855.8105mx mepg board hiteker w/o divx gkb2.855.8138mx main board mepg board(with divx) hiteker with divx u17 mt1389qe_d mtk1389d mtk w/o divx u11 icmt1389de-c mpeg ic mtk1389c mtk with divx u11 at49lv40...
Page 23: 8. Anexo
Antes de requerir servicio para el reproductor de dvd portátil, verifique la siguiente tabla para una posible causa del problema. Algunas veri- ficaciones simples o ajuste menor,por su parte pueden ser eliminadas y restablecer el funcionamiento del equipo. Sintoma (comun) no hay potencia. Remedio *i...
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Imagen distorsionada * verifique si el disco tiene huellas digitales y limpiarlo con una tela suave, limpiando desde el centro hacia el borde *algunas veces una pequeña distorsión de imagen puede aparecer. Este no es una falla. No hay color. *el formato de disco no coincide con el usado por el telev...
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No se puede realizar operaciones con el control remoto *verifique si las baterías están instaladas con las polaridades correctas (+ y -). *las baterías están mermadas, remplácelas con unas nuevas. * apunte el control remoto al sensor de señal del remoto y opere. *opere el control remoto a una distan...
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No se puede seleccionar lenguaje de audio o subtitulo alterno. * si no esta disponible mas de un lenguaje, un idioma alterno no puede ser seleccionado. No se puede cambiar ángulo. * esta función depende de la disponibilidad del software aún cuando un disco tiene grabado un número de ángulos, estos á...