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Sunstech PLF-77TD Service Manual

Tft portable dvb-t/dvd player
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TFT PORTABLE DVB-T/DVD PLAYER
SUNSTECH PLF-77TD
SERVICE MANUAL
CAUTION: Before servicing the chassis, read the "IMPORTANT SERVICE SAFETY INFORMATION" section on
page 2 of this manual.
SPECIFICATIONS
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GENERAL SPECIFICATION
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7" ACTIVE-MATRIX TFT TYPE.
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DVD, VCD, CD, CD-R, CD-RW, MP3, DIVX, HDCD
SUPPORTS.
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USB FUNCTION
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16:9 / 4:3 PICTURE SELECT.
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HIGH BRIGHTENNESS.
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HIGH CONTRAST.
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WITH LOGO OPENING SCREEN.
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SLOW MOTION ½, 1/4, 1/8, 1/16
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F.B / F.F x2, x4, x8, x16 SPEED.
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ANGLE MENU.
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20 TRACK PROGRAM FOR CD PLAYING.
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ZOOM x 2, 3, 4.
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REMOTE CONTROL.
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S. VIDEO OUTPUT (for Ext. TV Monitor)
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HEADPHONE OUT x 1.
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AUDIO OUTPUT 0.5W x 2/8 ohm.
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LONG BATTERY TIME OF OVER 2 HRS.
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DIMENSION :
212(L) x 170(W) x 430(H) mm(excluding battery)
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AC POWER SOURCE:
ADAPTER: 230V
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DC POWER SOURCE: BATTERY PACK: 7.2V
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FEATURES FOR DVB-T TUNER (FREE ON AIR)
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FREQUENCY RANGE :
VHF CH5 – CH12 (174MHZ – 230MHZ)
UHF CH21 - CH69 (470MHZ – 862MHZ)
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1,000 PROGRAMMABLE FAVORITE CHANNELS
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9 PICTURES FOR PROGRAM AUTO-SCAN
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EPG FUNCTION SUPPORT (TELE-TEXT OPTION)
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PROGRAM LIST WITH PROGRAM PREVIEW AFTER
TUNER POWER ON
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OSD TRANSPARENT ADJUSTMENT.
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FULL FUNCTION REMOTE CONTROL
Note: Follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
© 2006- PRINTED IN
CONTENTS
IMPORTANT SERVICE SAFETY INFORMATION................2
DISASSEMBLY FOR REPAIR .................................................3
WIRING DIAGRAM....................................................4
BLOCK DIAGRAM....................................................................5
CIRCUIT DESCRIPTION ...............................................6~14
PARTS LIST .................................................................. 15~28
EXPLODED VIEW (CABINET)............................................. 29
EXPLODED VIEW (DVB-T).................................................. 30
SCHEMATIC DIAGRAMS.................................................31~39
PRINTED CIRCUIT BOARDS.......................................... 40~57
R598MB

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Summary of Contents for Sunstech PLF-77TD

  • Page 1 TFT PORTABLE DVB-T/DVD PLAYER SUNSTECH PLF-77TD © 2006- PRINTED IN SERVICE MANUAL R598MB CAUTION: Before servicing the chassis, read the “IMPORTANT SERVICE SAFETY INFORMATION” section on page 2 of this manual. SPECIFICATIONS GENERAL SPECIFICATION 7” ACTIVE-MATRIX TFT TYPE. DVD, VCD, CD, CD-R, CD-RW, MP3, DIVX, HDCD SUPPORTS.
  • Page 2 IMPORTANT SERVICE SAFETY INFORMATION 1. SAFETY PRECAUTIONS Before returning a unit to the customer, always make a safety check of the entire unit, including, but not limited to the following items: a. Be sure that no built-in protective devices are defective and/or have been defeated during servicing.
  • Page 3 band connected to ground through a 1M ohm resistor to protect the OF PROCEDURES HEREIN MAY RESULT IN HAZARDOUS laser diode from static damage. If the lens should get dusty, blow off the RADIATION EXPOSURE. dust carefully from the object. DANGER: 3.
  • Page 4 DISASSEMBLY FOR REPAIR TO DISASSEMBLY THE BOTTOM METAL CABINET 1. Remove the 14 screws (A) from bottom metal cabinet. TO REMOVE THE INNER PANEL 2. Remove the 6 screws (B) from the inner panel and out panel.
  • Page 5 WIRING DIAGRAM...
  • Page 7 CIRCUIT DESCRIPTION 100m? Power Distribution Switches: RT9701CB (U7) NiMH BATTERY CHARGER CONTROLLER: LS2964S (U6) Timer Vdet Idet DUAL OPERATIONAL AMPLIFIER: RC4558D (U7,16) A OUTPUT A -INPUT B OUTPUT A +INPUT B -INPUT B +INPUT...
  • Page 8 CIRCUIT DESCRIPTION PROGRESSIVE SCAN DVD PLAYER COMBO CHIP: MT1389DE/B-L (U5) VIDEO PROCESSOR FOR MIDDLE SIZE LCD PANEL: VX1828 (U1)
  • Page 9 CIRCUIT DESCRIPTION 2-WIRE SERIAL EEPROM: AT24C02BN-10SU-1.8 (U6,U12) DUAL LOW-VOLTAGE POWER AMPLIFIER: NJM2073M (U3)
  • Page 10 CIRCUIT DESCRIPTION 24-BIT, 96 KHZ STEREO D/A CONVERTER FOR AUDIO: CS4340 (U15) DUAL COMPARATORS: LM393DR (U10) SINGLE-SUPPLY DUAL HIGH CURRENT OPERATIONAL AMPLIFIER: NJM3414AM-TE1(U3)
  • Page 11 CIRCUIT DESCRIPTION 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM: AT5654H (U4) 300/500MA LOW DROPOUT LINEAR VOLTAGE REGULATOR: RP1101-19CXL( U1), RP1102- 33CGL (Q2)
  • Page 12 CIRCUIT DESCRIPTION 8M/16M-BIT CMOS SINGLE VOLTAGE 3V ONLY HIGH SPEED FLASH: AT49BV163A-70TU (U11) , S29AL008D70TFI020 (U4) AT49B DIGITAL TV STB BACKEND PROCESSOR: CT212T (U3)
  • Page 13 CIRCUIT DESCRIPTION 2 BANKS X 512K X 16 BIT SYNCHRONOUS DRAM : K4S641632H-UC75 TSOP-54 (U1,U9) INFRARED REMOTE CONTROL TRANSMITTER : SC6122-001 (IC1) KI/O KI/O KI/O KI/O KI/O KI/O OSCO KI/O OSCI KI/O...
  • Page 14 CIRCUIT DESCRIPTION 2A STEP DOWN DC TO DC CONVERTER: MP9141ES-LF-Z (U8, 9) 10-pin, 24-Bit, 192 kHz Stereo D/A Converter: CS4345 (U5)
  • Page 15 CIRCUIT DESCRIPTION 25V STEP-UP CONVERTER IC: MP1522ET (U1) DIGITAL TV STB BACKEND PROCESSOR: B1117N-ADJ (U10)
  • Page 16 100~240V;TUV/CE;ROHS 127-04627-1974 R519MB PANEL OPEN KNOB HS-R598MB-GY- R598MB H/S CHASSIS (SP.SIL.SS9-1/ABS) (ROHS) W/COSMETIC ASSY(ROHS) 128-05180-0974 R519MB BUTTON 'A' L.GY.MNC7-0 "SUNSTECH PLF- (LEFT/RIGHT) (ROHS) 77TD" (48 KEY) (SP.SIL.SS9-1) 001-04050-710 N405M REMOTE CONTROL P.C.B. 128-05181-0974 R519MB BUTTON 'B' (UP/DOWN) (48 KEY) (ROHS) (ROHS) (SP.SIL.SS9-1)
  • Page 17 Ref. No Parts No. Description Ref. No Parts No. Description RED (ROHS) TYPE/BALL CLAW) 031-10500-100- JUMPER WIRE AWG22UL 50MM 161-03102-001 KHM-310 INSULATOR BLACK(ONE SIDE 4MM,ONE (IIR,HARDNESS=40 DEG) SIDE 10MM) (ROHS) (SILICON RUBBER) ;ROHS 043-20192-300 T409 DC CORD 75"#20 WH/BLK M519M- M519M CASING ASSY (W/049- (2P)W/BUSHING &DC PLUG CASING-02...
  • Page 18 Ref. No Parts No. Description Ref. No Parts No. Description FOR TFT SW. FOR BATTERY CAB. 144-11706-412 SCREW 1.7X6 KB (BLACK) ;ROHS 133-04625-360 M462 METAL PIN(A) FOR TFT SPRING USE 144-12004-511 SCREW 2X4 CWB (BLACK) (STEEL)(DIA.=6 MM) (ROHS) HARDEN (D=5MM FOR BATTERY LOCK 133-04626-103 M462 METAL PLATE (A) (IRON) T=0.5MM)(E6D8011-0) ;ROHS...
  • Page 19 FOR TFT RING BLACK;ROHS 180-04624-010 M462 METAL BOTTOM 998-00000-090 EPT NI-MH RECH.BATT. 7.2V CABINET (BLACK) ;ROHS 1500MAH (ROHS) EPT- R598MB-P-0410 R598MB DVD "SUNSTECH PLF- 50AA150H6S;2P 120MM 77TD" PACKING TO GERMANY WIRE+JST-XHP-2P (ROHS) R598MB-C-0410 R598MB DVD "SUNSTECH" 015-80593-001 M593 DVB-T ANTENNA TQJ-V/U-...
  • Page 20 Ref. No Parts No. Description Ref. No Parts No. Description BD.CHASSIS ASSY (W/LINE (RADIAL TYPE) (CW65-150K) SELECT SWITCH)(FOR (ZHONGSHAN) ;ROHS KHM313AHC) 015-00331-106 CHOCK COIL 330 UH (CW45- 003-03906-100 TRANSISTOR 2N3906 331K) (RADIAL TYPE) ;ROHS (MOTOROLA) (PNP TO-92) L1,4,15,17 015-00470-106 CHOKE COIL 47 UH DIA.6 003-08050-393 TRANSISTOR 8050C (KEC) (RADIAL TYPE) (CW65-470K) R200...
  • Page 21 Ref. No Parts No. Description Ref. No Parts No. Description 025-20004-214 4P WAFER V -TYPE (1.5MM 920-336-00) ;ROHS PITCH) (ROHS) 048-10006-002 6MM CONNECTION PLATE 025-20006-102 6P WAFER H-TYPE (2MM PITCH) (200G) (W/LEAD) (ROHS) JST(ROHS) MI-05930-100-02 M593 (MI) DVB-T TUNER BOARD 025-20006-108 6P WAFER H-TYPE (1.5MM CHASSIS ASSY(ROHS) PITCH) JST(ROHS)
  • Page 22 Ref. No Parts No. Description Ref. No Parts No. Description (BLK) & BATT (-) *1 FOR TFT DRIVER BD. J5 025-10003-180 3P J.WIRE #28UL 60MM (2P DVB-T TUNER PCB TO 031-02221-040- JUMPER WIRE AWG22UL 220MM 1.25MM) BATT (+) RED(ROHS) JST(RED/WHITE/BLACK) (ROHS) DVB-T TUNER PCB TO 031-10151-040- JUMPER WIRE AWG22UL 150MM...
  • Page 23 Ref. No Parts No. Description Ref. No Parts No. Description (SAMSUNG) 64M SDRAM IC (ROHM) 13V 0.2W SMT(ROHS) (133MHZ) (ROHS) 004-80154-400 SW. DIODE 1SR154-400-TRB 002-49163-450 IC AT49BV163A-70TU (ATMEL) (ROHM) SMT(ROHS) TSOP-48 16M FLASH MEMORY D4,10,11 004-80160-401 SCHOTTKY DIODE RB160L-60 IC (SMT) LEAD FREE(ROHS) (ROHM) SMT(ROHS) Q7,22,25,27 003-20323-140 CHIP TRANSISTOR DTC323TU...
  • Page 24 Ref. No Parts No. Description Ref. No Parts No. Description (ROHS) (ROHS) R47,184 005-52183-301 CHIP RESISTOR 18 K +-5% (1608) 005-52561-301 CHIP RESISTOR 560 OHM +-5% (ROHS) (1608) (ROHS) R125,128 005-52184-301 CHIP RESISTOR 180 K +-5% (1608) R55,123,147 005-52562-301 CHIP RESISTOR 5.6K +-5% (1608) (ROHS) (ROHS) R60,98,153...
  • Page 25 Ref. No Parts No. Description Ref. No Parts No. Description (MCH185CN103KK) 10% 50V(1608) (ROHS) X7R C5,20,66,68,76,78,92,94 006-72105-416 CERAMIC CHIP CAP 1 UF +-%20 C14,80,83 006-72333-325 CERAMIC CHIP CAP 0.033 UF +- 16V (1608) (ROHS) Y5V 10% 25V(1608) (ROHS) X7R C49,50,51,54,56,58,60 006-72105-435 CERAMIC CHIP CAP 1 UF +-20% (MCH182C333KK) 35V (1608) (ROHS) Y5V...
  • Page 26 Ref. No Parts No. Description Ref. No Parts No. Description SMT-10550-710- R519MB (SMT) TFT DRIVER (ROHS) BD.CHASSIS ASSY (ROHS) R20,25,30 005-52683-301 CHIP RESISTOR 68 K +-5% (1608) 001-10550-710 I1055 7" TFT DRIVER PCB (4 (MCR03EZHJ683) (ROHS) LAYER) (94V0) (121*23*1)MM R6,7,17,22,27 005-52750-301 CHIP RESISTOR 75 OHM +-5% (ROHS)(R.2) (1608) (ROHS)
  • Page 27 Ref. No Parts No. Description Ref. No Parts No. Description SE B;ROHS BK2125HM121 (TAI) (ROHS) CE1,4,9 047-11476-406- TANTALUM CHIP CAP 47 UF +- 047-11106-425 TANTALUM CHIP CAP 10 UF +- 20% 6.3V(ROHS) 3.2*1.6*1.6/CASE 20% 25V(6X3.2/CASE C);ROHS A;KEMET;T491A476M006AS 047-11475-425-E TANTALUM CHIP CAP 4.7 UF +- SMT-76000-400 R600MB 7"...
  • Page 28 Ref. No Parts No. Description Ref. No Parts No. Description 003-20857-242 CHIP TRANSISTOR PNP BC857B R61,70,80 005-52222-301 CHIP RESISTOR 2.2 K +-5% (1608) SOT-23 (PHILIPS) (ROHS) (ROHS) Q2,4,5,9 003-23904-001- CHIP TRANSISTOR NPN 005-52223-301 CHIP RESISTOR 22 K +-5% (1608) FMMT3904 (HSMC) (ROHS) (ROHS) Q6,7,8 003-23906-001-...
  • Page 29 Ref. No Parts No. Description C31,61 006-72121-250 CERAMIC CHIP CAP 120 PF +-5% 50V (1608) (ROHS) NPO C1,2,3,4,5,6,8,9,10,11,12,14,1 006-72104-350 CERAMIC CHIP CAP 0.1 UF +-10% 6,25,26,27,28,29,30,38,39,40, 50V (1608) (ROHS) X7R 41,42,43,44,45,46,4748,49,50, 51,52,53,54,55,5657,58,59,60, 65,68,69,71,7475,76, CX1,CX2 BC1,BC2 C19,24,32,33 006-72220-250 CERAMIC CHIP CAP 22 PF +-5% 50V (1608) (ROHS) NPO 006-72273-350 CERAMIC CHIP CAP 0.027 UF +- 10% 50V (1608) (ROHS) X7R...