Emerson MD1777 Service Manual

In car dvd-video player
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SERVICE MANUAL
IN CAR DVD-VIDEO PLAYER
MD1777
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE "SAFETY
PRECAUTIONS", IN THIS MANUAL.

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  Summary of Contents for Emerson MD1777

  • Page 1 SERVICE MANUAL IN CAR DVD-VIDEO PLAYER MD1777 CAUTION BEFORE SERVICING THE CHASSIS, READ THE "SAFETY PRECAUTIONS", IN THIS MANUAL.
  • Page 2 • Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. 1.
  • Page 3 TOTAL CONTENTS SECTION 1. GENERAL ........................2 SECTION 2. CABINET & MAIN FRAME..................6 SECTION 3. ELECTRICAL ......................10...
  • Page 4: Section 1. General

    SECTION 1. GENERAL CONTENTS 1-1. SPECIFICATIONS..........................3 1-2. IDENTIFICATION AND OPERATION OF CONTROLS ...............4...
  • Page 5: Specifications

    1-1. SPECIFICATIONS Power DC 12V Negative Ground Consumed electricity 24W (supplementary 2.5W) Weight 5.3kg Dimension (WxHxD) 250mm x 135mm x 266.5mm Operative temperature 5¡C ~ 35¡C Installation condition Horizontal / Relative humidity under 80% Signal type NTSC COLOR VIDEO input 1.0Vp-p unbalanced, RCA JACK AUDIO input -8.8dBm, RCA JACK...
  • Page 6: Identification And Operation Of Controls

    1-2. IDENTIFICATION AND OPERATION OF CONTROLS ! @ # $ % ^ & * “ 9 8 7 6 3 EJECT SOURCE Use to change DVD mode to VCP and vice versa. To eject a disc or tape,press EJECT button. @ MENU 4 AV.SW Used to display the contents menu of the loaded DVD disc.
  • Page 7 @ # $ ! Infrared (IR) INPUT Connector $ DC 12V Jack This connector provides a two wire interface with various Flexvision video monitor When using a DC power source, connect this jack to 12V DC. products. * Connector description * Connector description % AUDIO/VIDEO OUT Connectors @ Infrared (IR) INPUT Connector (Remote Eye)
  • Page 8: Section 2. Cabinet & Main Frame

    SECTION 2. CABINET & MAIN FRAME CONTENTS 2-1. EXPLODED VIEW..........................7 1) MAIN CHASSIS 2) PANEL FRONT 2-2. PACKING ASSEMBLY........................9...
  • Page 9: Exploded View

    2-1. EXPLODED VIEW 1) MAIN CHASSIS ASS'Y...
  • Page 10: 2) Panel Front

    2) PANEL FRONT ASS'Y...
  • Page 11: Packing Assembly

    2-2. PACKING ASSEMBLY...
  • Page 12: Table Of Contents

    SECTION 3. ELECTRICAL CONTENTS 3-1. ELECTRICAL ADJUSTMENT ......................11 1) SERVO-LOGIC CIRCUIT ADJUSTMENT METHOD 3-2. CIRCUIT DIAGRAMS ........................12 1) CONNECTION DIAGRAM 2) POWER CIRCUIT DIAGRAM 3) SERVO SYSCON CIRCUIT DIAGRAM 4) VIDEO & AUDIO CIRCUIT DIAGRAM 5) HI-FI CIRCUIT DIAGRAM 6) A/V IN/OUT CIRCUIT DIAGRAM 3-3.
  • Page 13: Electrical Adjustment

    3-1. ELECTRICAL ADJUSTMENT 1) SERVO-LOGIC CIRCUIT ADJUSTMENT METHOD • VIDEO HEAD SWITCHING POSITION Adj. Location Checking Point Measuring Equipment Mode Test Tape PT01 3 PIN REC Button(Jig Remocon) Oscilloscope Play DN-2 VIDEO OUT 1) Play back the test tape. 2) Set the oscilloscope in the CHOP mode connect the CH1 to SW pluse PT01 3 PIN the CH2 to VIDEO OUT with CH1 triggering.
  • Page 14: Circuit Diagrams

    3-2. CIRCUIT DIAGRAMS 1) LOGIC CIRCUIT DIAGRAM (DV5T721NY)
  • Page 15 2) POWER CIRCUIT DIAGRAM (DV5T711NY)
  • Page 16 3) SERVO SYSCON CIRCUIT DIAGRAM (DV5T711NY)
  • Page 17 4) VIDEO& AUDIO CIRCUIT DIAGRAM FM PROCESSING...
  • Page 18 5) HI-FI CIRCUIT DIAGRAM (DV5T711NY)
  • Page 19: A/V In/Out Circuit Diagram

    6) A/V IN/OUT CIRCUIT DIAGRAM...
  • Page 20: Components Location Guide On Pcb

    3-3. PRINTED CIRCUIT BOARD 1) PCB MAIN...
  • Page 21 2) PCB FRONT 3) PCB JACK...
  • Page 22: Electrical Parts List

    3-4. ELECTRICAL PARTS LIST 1) PCB MAIN AS PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC AN002 2291131304 GREASE DELUXE 5221G(NAM-YOUNG) PVACPSN662 ACCESSROY AS DV5T711NY-KA5 M100A 97P0992700 PLATE TOP SECC T1.0 DP01 97P95600N0 MANUAL OWERNS NTSC,MODEL M100C 97P9398318 LABEL PGM 13X25 VN2018890I-EMER-1(97P93B2101) DP03 97P0424100 COVER ACCESSORY...
  • Page 23 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC IC501 168KT879TS IC MICOM M37762M8A-8C4GP C268 HCBK332KBA C CHIP CERA 50V X7R 3300PF K 1608 IC503 14ATM24D08 IC CHIP EEPROM AT24C08N 10SI-2.7 SOIC C269 HCBK472KBA C CHIP CERA 50V X7R 4700PF K 1608 C275 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608...
  • Page 24 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC RJ27 HRFS000-BA R CHIP 1/16 0 OHM 1608 R510 HRFT241JCA R CHIP 1/10 240 OHM J 2012 Z0012 PVMPJRN676 PCB MAIN RADIAL AS DV5T711NY-RB5 R511 HRFT241JCA R CHIP 1/10 240 OHM J 2012 C202 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7...
  • Page 25 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC L401 5CPX100J2T COIL PEAKING 10UH(BRN-BLK) L253 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) L803 58C0000133 COIL CHOKE CH-330W L307 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) R209 RD-AZ225J- R CARBON FILM 1/6 2.2M OHM J L804 56C220K695 COIL CHOKE(CAP TYPE)
  • Page 26 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC JP016 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP087 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP017 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP088 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP018 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP090...
  • Page 27 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC JP157 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP193 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP158 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP194 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP159 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP195...
  • Page 28 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC SW706 5S50101Z97 SW TACT THVV952GBA 9.5M AUTO JP732 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING SW707 5S50101Z97 SW TACT THVV952GBA 9.5M AUTO JP733 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING SW708 5S50101Z97 SW TACT THVV952GBA 9.5M AUTO JP734 85801065GY...
  • Page 29 3) PCB JACK AS PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC Z006 PVJMMSN662 PCB JACK MANUAL AS DV5T711NY-KA5 CS603 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 AK01 2193100801 SOLDER WIRE SN:PB=63:37 3PI(NO FLUX) CS607 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 AK02 2193011100 SOLDER WIRE...
  • Page 30 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC AK31A 2TM110620R TAPE MASKING SI-600N RED RJ672 HRFS000-BA R CHIP 1/16 0 OHM 1608 AK31B 2TM1106200 TAPE MASKING SI-600N RJ673 HRFS000-BA R CHIP 1/16 0 OHM 1608 D651 DZUZ13BSB- DIODE ZENER UZ-13BSB(12.59-13.16V) RJ674 HRFS000-BA R CHIP 1/16 0 OHM 1608 D652...
  • Page 31 PART-CODE PART-NAME PART-DESC PART-CODE PART-NAME PART-DESC JP630 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP668 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP631 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP669 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP632 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP670...