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Memorex MLT1912 - 19" LCD TV Service Manual

19" lcd tv w/atsc & ntsc-m
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19" LCD TV W/ATSC & NTSC-M
MEMOREX MLT1912 "B"

SERVICE MANUAL

CAUTION: Before servicing the chassis, read the "IMPORTANT SERVICE SAFETY INFORMATION" section on
page 2 of this manual.
Note: Follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
© 2007- PRINTED IN
Y3719(Y371900-17541-004-05-42)
CONTENTS
IMPORTANT SERVICE SAFETY INFORMATION................
DISASSEMBLY FOR REPAIR ...............................................
WIRING DIAGRAM..................................................
EXPLODED VIEW (CABINET).............................................
PARTS LIST .......................................................................

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Summary of Contents for Memorex MLT1912 - 19" LCD TV

  • Page 1: Service Manual

    19" LCD TV W/ATSC & NTSC-M MEMOREX MLT1912 “B” © 2007- PRINTED IN SERVICE MANUAL Y3719(Y371900-17541-004-05-42) CAUTION: Before servicing the chassis, read the “IMPORTANT SERVICE SAFETY INFORMATION” section on page 2 of this manual. CONTENTS IMPORTANT SERVICE SAFETY INFORMATION....DISASSEMBLY FOR REPAIR ..........
  • Page 2 IMPORTANT SERVICE SAFETY INFORMATION 1. Read these Instructions. 2. Keep these Instructions. 3. Heed all Warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any of the ventilation openings. Install in accordance with the manufacturer’s instructions. 8.
  • Page 3 DISASSEMBLY FOR REPAIR TO DISASSEMBLY THE FOOT COVER 1. Remove the 2 screws (A) from foot cover and foot stand. TO REMOVE THE REAR CABINET 2. Remove the 14 screws (B) from the back cabinet. TO REMOVE THE MAIN PCB SHIELD COVER 3.
  • Page 4 DISASSEMBLY FOR REPAIR TO REMOVE THE JACK SHIELD COVER 4. Remove the 7 screws (D) from the jack shield cover. TO REMOVE THE FRONT CABINET 5. Remove the 14 screws (E) from the front cabinet. TO REMOVE THE LCD MTG BLK 6.
  • Page 5 WIRING DIAGRAM...
  • Page 7 Description 185-38190-002 Y3819 INVERTER CHASSIS SOB-405 (SAQCN) (FOR BOE 103-03535-0320 Y3719 H/S TOP CAB. (BLACK) 19" TFT DIS.);ROHS (31 KEY); ROHS "MEMOREX" AI-Y3419-001 Y3419 (AI) CHASSIS ASSY W/L.BU.285C/ WH./L.GY.429C AI-34190-700 Y3419 (AI) KEY BOARD CHASSIS ASSY 104-03530-010 M352M HANDSET BOTTOM 001-34190-700 Y3419 KEY BOARD P.C.B.
  • Page 8 Ref. No Parts No. Description Ref. No Parts No. Description (ALRIGHT)(ROHS) C103,111,118,124,126,128 009-10476-416 ELECT CAP 47 UF +-20% 16V JK86 046-20300-051 3P RCA JACK RCA*316V-090 201,202,327,331, 509,514, (ROHS) (G/B/R) PCB-TYPE (ALRIGHT) 515,521,523,525,527,529, (ROHS) 533,534, 544,841,842,848 X201 052-00503-100 CERAMIC RESONATOR: L102 015-00102-007 AXIAL INDUCTOR 1000 UH;+- 503KHZ ZTB503F58;2 PIN 20 10%;DCR:31.3OHM 0.08 MAX;...
  • Page 9 Ref. No Parts No. Description Ref. No Parts No. Description CN701 025-20005-201 5P WAFER V-TYPE (2MM U301,307 002-02596-001- IC N2596S-5 (NIKO-SEM) TO- PITCH) JST (ROHS) 263 SMT (ROHS) 150KHZ 3A N700 061-06038-001 INFRARED REMOTE STEP-DOWN VOLTAGE DETECTOR FM-6038LM(ROHS) REGULATOR IC FOR N700 136-20830-080 RUBBER 8*8*3MM (W/TWO U803...
  • Page 10 Ref. No Parts No. Description Ref. No Parts No. Description SOT-23 (MOTOROLA)(ROHS) ZD3,4,5,6,7,8,9,10,11,12, 004-80039-212- ZENER DIODE TCLLZ39V R128,814,815,837,838 005-52123-301 CHIP RESISTOR 12 K +-5% 15,16,17 (TAK CHEONG) (SMT) 3.9V (1608) (MCR03EZHJ123) 0.5W (ROHS) (ROHS) ZD2,13,14,18,19 004-80051-212- ZENER DIODE TCLLZ51V R218 005-52151-301 CHIP RESISTOR 150 OHM +-5% (TAK CHEONG) (SMT) 5.1V (1608) (ROHS)
  • Page 11 Ref. No Parts No. Description Ref. No Parts No. Description R232,251,252,808,809 005-52473-301 CHIP RESISTOR 47 K +-5% ,214,216,217,223,224,225, +80%-20% 25V(1608) (ROHS) (1608) (ROHS) 228,249,250,251,255,257, R115,548,552,553,554,555 005-52560-301 CHIP RESISTOR 56 OHM +-5% 259,822,825,826 (1608) (ROHS) C123 006-72152-350 CERAMIC CHIP CAP 0.0015 UF +-10% 50V(1608) (ROHS) X7R R107,512,516,885,886 005-52562-301 CHIP RESISTOR 5.6K +-5%...
  • Page 12 Ref. No Parts No. Description Ref. No Parts No. Description C114 006-72472-350 CERAMIC CHIP CAP 0.0047 UF CHASSIS ASSY +-10% 50V(1608) (ROHS) X7R 001-34190-900 Y3419 JACK P.C.B. (FR4) 2 C229 006-72473-350 CERAMIC CHIP CAP 0.047 UF LAYER (42*30*1.6)MM (ROHS) +-10% 50V(1608) (ROHS) X7R R708 005-52101-301 CHIP RESISTOR 100 OHM +- C115,235...
  • Page 13 Ref. No Parts No. Description Ref. No Parts No. Description 70NS IC;ROHS R100 005-52302-301 CHIP RESISTOR 3 K +-5% 002-45516-061 IC K4D551638H-LC40 (1608) (MCH03EZHJ302) (SAMSUNG) TSOP66 256M (ROHS) GDDR SDRAM IC (SMT);ROHS R86,89 005-52304-301 CHIP RESISTOR 300 K +-5% 002-86695-002- IC R8A69950BG (RENESAS) (1608) (MCR03EZHJ304) (BGA-297) SMT ATSC DIGITAL...
  • Page 14 (INJECTION MNC7-0) (ABS V0) C91,101,105,166 009-70476-416 CHIP ELECT CAP 47 UF +-20% (SP.SILVER SS9-1)(ROHS) U04 16V (ELNA) RV2-16V470M-R Y3419-STD-13- Y3419 100~240V "MEMOREX" (6.3*5.3) (ROHS) UL APP. ASSY 015-00010-904 CHIP INDUCTORS EBL2012- 023-25040-110 AC CORD SET 770MM UL/CUL 1ROK 1 UH +-10%(2012)0.4 APP.NISPT-2/60'"8"+...
  • Page 15 CN71 TO CN5 025-40010-042 10P J.WIRE #28UL 260MM(2P UL60065(HONOR)ROHS 2MM) TML/JST (QIAOYUN: Y3419-UL- Y3419 UL WIRE ASSY YS/R1050-06) (ROHS) WIRE Y3719-C-0320 Y3719 "MEMOREX" COSMETIC CN703 TO SPEAKER 025-10004-179 4P J.WIRE #26UL(1P 2MM)JST; ASSY SP.MATT.BLACK (CHUNGLING) 225*2(W/BK) 101-37190- Y3719 FRONT +405*2(BK/R) (TC-YC060070) 0320-V CAB."MEMOREX"(INJ.BLACK/...
  • Page 16 FOR FRONT/REAR CAB 142-11505-121 FELT (120*15*0.5)MM W/ONE T=2)MM (P31) (ROHS) SIDE TAPE;ROHS FOR FOOT ASSY 139-04022-102 T402 FOOT-LEVER (IRON Y3719-P-0320- Y3719 "MEMOREX MLT1912" T=2)MM (P31) (ROHS) PACKING ASSY(TARGET FOR FOOT ASSY 139-31191-120- Y3119 HINGE 'R' (IRON DI)(SUFFIX B) W/DPC LABEL...
  • Page 17 Ref. No Parts No. Description FOR REAR CABINET TO LCD MTG BKT FOR LCD/BKT 18CM 142-11505-221 FELT (220*15*0.5)MM W/ONE FOR LCD BKT 11CM SIDE TAPE;ROHS FOR LCD BKT 11CM FOR JACK SHIELD COVER 22CM FOR SPEAKER TO LCD/BKT 44CM...

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Mlt1912 b