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DAEWOO ELECTRONICS DSL-19M1WCD Service Manual Download Page 79

 

78

2. Debugging Strategy 

Debug start

Led green?

LOGO appears?

Led red?

Power on

Yes

No

Make sure the power adapter

 is correctly connected.

No

Yes

FLASH 

Accessed?

EEPROM works 

noramally?

Video signal from

8125 is ok?

Blue screen?

No

Check the connection between FLASH and FLI8125

Check the speed of FLASH

No

Yes

Check the connection between EEROM and FLI8125

No

Check Pins of FLI8125

If in TV mode,check the tuner

No

Yes

Make sure the unit is turned on and

The connection are correct.

Yes

Audio signal

OK?

No

Check MSP3415G and TDA1517P

Make sure the speakers work correctly and the amplifier is not muted.

In TV mode,make sure setting the correct sound mode.

In DVD mode,make sure the sound setup of DVD disc is correct.

No

Yes

A

 

 

Summary of Contents for DSL-19M1WCD

Page 1: ...DSL 19M1WCD S M NO DLV19M1WCD LCD COMBO...

Page 2: ...T PART 1 Brief Introduction Of The LTD 61915E Schematic Diagram Printed Circuit PART 2 Exploded view PART 3 Key Ics And Assemblies PART 4 Detailed Circuit Main Board DVD Board HI voltage Board PART 5...

Page 3: ...5V LVDS 3 3V 1 8V RGB L R Hsync Vsync Composite L R YC L R Composite SIF L R LR YPbPr LR L R SVIDEO IN CD4052 audio switch TDA1517P audio power amplify MXX29LV160BT FLASH MT1389HD Decoder K4S641632H...

Page 4: ...Printed Circuit Main board 3678C Top layer view...

Page 5: ...Main board3678C Bottom layer view...

Page 6: ...DVD board 3769C Top layer view DVD board 3769C Bottom layer view...

Page 7: ...HI voltage Board 3678C Top layer view HI voltage Board 3678C Bottom layer view SD card board3773C Top layer view SD card board3773C Bottom layer view Earphone board3772C Top layer view...

Page 8: ...Earphone board3772C Bottom layer view Remote control head board3921C Top layer view Remote control head board3921C Bottom layer view...

Page 9: ...Part2 Exploded view...

Page 10: ......

Page 11: ...040B 3 U3 MT1389HD 4 2U3 FLI8125 4 U4 BA5954 5 1U4 FDS9435A 5 U5 BA6208F 6 1U1 AP1510 6 U6 HY57V641620HGT 7 2U2 AT24C32A 7 U7 MX29LV160BT 8 1U2 AP1513S 8 U8 AT24C16 9 8U4 CD4052 9 U9 NJM4558 10 8U2 MS...

Page 12: ...ICS ON MAIN BOARD 1 FSAV330 Low On Resistance Quad SPDT Wide Bandwidth Video Switch...

Page 13: ...lications It incorporates a multi standard video decoder high speed triple 8 bit Analog to Digital Converter ADC and front end switching An integrated VBI Slicer adds Closed Captioning CC and Teletext...

Page 14: ...nalog Power 1 8V for C Channel Must be bypassed with 0 1uF capacitor to the analog system ground plane ADC_TES T 162 O Analog Front End Test O P Leave this Pin open Used for factory testing purpose on...

Page 15: ...or network to Analog Ground Plane on board AGND 185 AG Analog Ground Must be directly connected to the analog system ground plane on board SV3P 186 AI Positive analog sync input for channel 3 The inpu...

Page 16: ...th Analog Input 6 The Input signal connected to this Pin must be bypassed with LBADC_RTN 8 AG This Pin provides the Return Path for LBADC inputs Must be directly connected to the analog system ground...

Page 17: ...nal 10K pull up resistor DDC_SDATA 27 IO DDC2Bi data for VGA Port internal 10K pull up resistor MSTR_SCLK 30 O Clock signal from Master Serial 2 Wire Interface Controller MSTR_SDATA 31 IO Data signal...

Page 18: ...O Panel Power Control Tri state output 5V tolerant AVDD_LV_33 56 DP Digital Power for LVDS Block Connect to digital 3 3V supply VCO_LV 57 O Reserved Output for Testing Purpose only at Factory AVSS_LV...

Page 19: ...ven B3 81 O Blue channel bit 3 Even Blue channel bit 1 Even AVSS_OUT_LV 82 G Ground for TTL outputs AVDD_OUT_LV_33 83 DP Digital Power for TTL outputs Connect to digital 3 3V supply PD20 B4 86 O Blue...

Page 20: ...132 131 130 129 128 125 124 123 IO External PROM data input ROM_OEN 118 O External PROM data Output Enable ROM_SDI ROM_WEN 97 O External PROM data Write Enable for In System Programming of FLASH or Se...

Page 21: ...ate resistance and provide superior switching performance These devices are particularly suited for low voltage applications such as notebook computer power management and other battery powered circui...

Page 22: ...21 4 AT24C32A 2 Wire Serial EEPROM 32K 4096 x 8...

Page 23: ...22...

Page 24: ...23 5 LM1117 SOT 223...

Page 25: ...24 6 74LVX125 Low Voltage Quad Buffer with 3 STATE Outputs...

Page 26: ...25 7 AT49BV040B...

Page 27: ...26...

Page 28: ...27...

Page 29: ...is a differential 4 Channel multiplexer having two binary control inputs A and B and an inhibit input The two binary signals select 1 of 4 pairs of channels to be turned on and connect the analog inpu...

Page 30: ...29 ICS ON DVD BOARD 1 BA033T Low saturation voltage type 3 pin regulator...

Page 31: ...h D 6 DVDRFIP Analog Input AC coupled DVD RF signal input RFIP 7 DVDRFIN Analog Input AC coupled DVD RF signal input RFIN 8 MA Analog Input DC coupled main beam RF signal input A 9 MB Analog Input DC...

Page 32: ...3V 25 CSO RFOP Analog output 1 2 Central servo Positive main beam summing output 26 RFLVL RFON Analog output 1 2 RFRP low pass or Negative main beam summing output 27 SGND Ground Analog ground 31 FEO...

Page 33: ...Analog input Op amp positive input 37 DMO Analog Output Disk motor control output PWM output 38 FMO Analog Output Feed motor control PWM output 39 TROPENP W M Analog Output Tray PWM output Tray open...

Page 34: ...HIGHA6 Input 2 16MA SR PU Microcontroller address 14 68 HIGHA7 Input 2 16MA SR PU Microcontroller address 15 89 AD7 Input 2 16MA SR Microcontroller address data 7 86 AD6 Input 2 16MA SR Microcontrolle...

Page 35: ...O 58 IOA4 Input 2 16MA SR PU Microcontroller address 4 IO 59 IOA5 Input 2 16MA SR PU Microcontroller address 5 IO 60 IOA6 Input 2 16MA SR PU Microcontroller address 6 IO 61 IOA7 Input 2 16MA SR PU Mic...

Page 36: ...Flash chip select active low IO 94 UWR Input 2 16MA SR PU SMT Microcontroller write strobe active low 95 URD Input 2 16MA SR PU SMT Microcontroller read strobe active low 97 UP1_2 Input 4MA SR PU SMT...

Page 37: ...2 Audio DAC master clock of SPDIF input While SPDIF input is not used I Serial interface port 0 clock pin II GPIO 205 SPDATA SDIN0 Input Non pull 1 2 Audio data of SPDIF input While SPDIF input is no...

Page 38: ...urround channel Trap value in power on reset I 1 manufactory test mode II 0 normal operation While using external channels I GPO_0 212 ASDATA3 Input 4MA PD SMT 1 2 3 4 Audio serial data 3 Center back...

Page 39: ...AUDIO DAC not used a SDATA0 b GPIO 1 AUDIO DAC Center channel output 228 ALF GPIO Output 2 While internal AUDIO DAC not used GPIO 229 ADACVDD1 Power 3 3V power pin for AUDIO DAC circuitry 230 ADACVDD2...

Page 40: ...rupt 4 III Version AD input port 2 IV GPIO MISC 12 46 USB_VSS USB Ground USB ground pin 47 USBP Analog Input USB port DPLUS analog pin 48 USBM Analog Input USB port DMINUS analog pin 49 USB_VDD3 USB P...

Page 41: ...l 1 2 Digital Video output Y bit 4 GPIO 159 Y_5 IO_14 RD29 Input Non pull 1 2 Digital Video output Y bit 5 GPIO 158 Y_6 IO_15 RD30 Input Non pull 1 2 Digital Video output Y bit 6 GPIO 157 Y_7 IO_16 RD...

Page 42: ...QM0 Input Data mask 0 JTAG Interface 4 51 TDI V_ADIN4 Input Non pull 1 2 3 Serial interface port 3 data out Version AD input port 4 GPIO 52 TMS V_ADIN5 Input Non pull 1 2 3 Serial interface port 3 dat...

Page 43: ...42 4 BA5954...

Page 44: ...43...

Page 45: ...motors in cassette players and other electrical equipment by using TTL level logic signals The IC contains a logic section which controls forward and reverse rotations as well as forced stop and an o...

Page 46: ...45 7 MX29LV160BT 16M BIT 2Mx8 1Mx16 CMOS SINGLE VOLTAGE 3V ONLY FLASHMEMORY...

Page 47: ...46...

Page 48: ...bits each The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential The AT24C16 is available in space saving 8 pin PDIP 8 p...

Page 49: ...48...

Page 50: ...49 9 NJM4558 DUAL OPERATIONAL AMPLIFIER...

Page 51: ...hted 48kHz DAC Digital Set Top Boxes 90dB THD DAC Sampling Frequency 8kHz 96kHz Pin Selectable Audio Data Interface Format I2 S Right Justified or DSP 3 5V Supply Operation 14 pin SOIC Package Pin Com...

Page 52: ...ures 4 5V 8V operation Fixed High Frequency Voltage Mode PWM Control Latched Off Protection Build In Low Frequency PWM Generator Build in UVLO Low Power CMOS Process Totem Pole Output 16 Pin Package A...

Page 53: ...es to 1uA when TIMER 0 3V 6 ONOFF I The control pin of turning on or off the IC 1V threshold with an internal 80K 15 ohm pull low resistor 7 GND I O The ground pin of the device 8 NOUT2 O The number 2...

Page 54: ...53 2 AP4511M N AND P CHANNEL ENHANCEMENT MODE POWER MOSFET...

Page 55: ...OUT1 OUT2 VSS1 VSS2 1C4 10n 1C12 100n VCC12 1R1 3 3k 1R16 1K VCC5 PANEL PW 1C23 100n 1R3 10k VCC12 1R4 3k 1R8 2 2k 1C14 100n PNL VCC 1 8VCC VCC1 8 1T1 TRANSFORMER PNL VCC VCC5 1C11 100n VCC12 3 3V_DVD...

Page 56: ...41 42 43 44 47 48 51 52 46 50 180 181 182 183 151 152 153 154 155 156 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 105 106 107 108 109 110 111 112 11...

Page 57: ...I_B 3R55 0 nc Pb SCA CVBS 3R22 75 3R36 75 VCC5 DDC 5V 3C28 100n 3R19 10K DVD CVBS 3C42 100n NC 3FB3 FB HDMI_R 3R13 75 3FB9 FB 0 3EC10 470uF 16V 3C7 330pF 3C31 100n NC 0 SCART 1 DVB DVB GND 3FB2 FB R08...

Page 58: ...CC 8V VCC5_TUNER 3EC14 2 2u 16V 8C22 100n VGA A R 8R61 NC 9CN16 CON502H 1 2 3 4 5 8R38 0 nc YPbPr A R 8EC2 10uF 16V 3C74 100n 8C14 56p SCL M SDA M VOUTR AUDIO SEL0 YPbPr A L 8EC24 100u 25V 3C62 100pF...

Page 59: ...8 9 10 3 3V_DVDD HDMI0_RX1 5R1 10K HDMI_RESET HDMI_CEC GND 5C21 100n 5R29 10K SCL M 5EC1 10uF 6V3 HDMI0_VCC 5C44 3 9nF 5R24 22R 5EC9 47uF 5C5 1n 5C9 1n 5EC7 47uF 1 8V_DVDD HDMI0_RX2 HDMI0_DDCSCL 5R21...

Page 60: ...66 DV33 CE9 CDV10uF 25V DC100BC DEVICE CB8 0 1uF MT1389HD VSTB CB6 0 1uF 12V 3 SDRAM FLASH Fix regulator URST 2 4 AUTO DVD 2 MT1389HD IR 2 RESET Circuit Audio 5V DV33 L3 FB VCC Laser Diode 3 3V SLOTIN...

Page 61: ...3 CDV10uF 25V WE DQM0 IO_16 TP58 R18 1 TP8 R39 15k R80 33 ALRCK 5 VSTB GPIO_4 CB23 0 1uF C28 1uF TP16 A4 V18 KEY2 L11 FB TP45 NC V18 PCE 3 89_ALS 3 ALE IO_15 RAS STOP CB22 0 1uF R41 33k Very Important...

Page 62: ...SOP54 1 2 4 12 5 7 9 8 10 46 11 13 15 16 17 18 19 35 22 23 24 25 26 14 41 29 30 31 32 33 34 36 37 38 39 40 43 42 44 52 45 47 49 48 50 51 53 54 20 21 3 6 27 28 VCC DQ0 DQ1 VSSQ DQ2 DQ3 VCCQ DQ4 DQ5 VSS...

Page 63: ...on0402w 1 2 3 4 D11 1N4148 1 2 Q6 3906 1 3 2 5VV USBP USBM 2 R81 75 1 NC 5VV C NC R83 75 1 L19 0 56uH GND D2 1N4148 1 2 C55 47P YUV6 R84 75 1 NC U C59 47P C56 120P USBP 2 ASPDIF R121 75 1 D6 1N4148 1...

Page 64: ...CB62 0 1uF 1800pF DAC_ASDAT0 R107 10K 100pF SBCLK1 R102 100K C69 AVCC R112 OPEN 22k DVD L C73 CB58 0 1uF C72 1000pF 1800pF 1800pF C62 2000p CE32 CDV100uF 25V R86 SLRCK1 CE29 CDV47uF 25V 1000pF 1000pF...

Page 65: ...R32 R19 C1 C31 1 2 R29 D1 C2 C26 1 2 C39 1 2 OP4 R3 Q7 4 3 1 2 8 7 6 5 R13 C16 1 2 C13 1 2 R40 C36 1 2 J4 1 2 J2 1 2 C35 1 2 Operation frequency 50KHZ D6 1 3 2 C23 1 2 Test Pannel AU M170EG01 R10 1 2...

Page 66: ...R114 R103 01 57 R 2 E822J SMD resistor 0603 8 2K 5 1 R108 01 57 R 2 E912J SMD resistor 0603 9 1K 5 2 R113 R98 01 57 R 2 E103J SMD resistor 0603 10K 5 15 R2 R20 R25 R26 R40 R44 R47 R48 R50 R52 R59 R69...

Page 67: ...1 CB19 01 54 CS 2 E103Y SMD capacitor 0603 103 Y5V 20 80 50 V 1 C6 01 54 CS 2 E153Y SMD capacitor 0603 153 Y5V 20 80 50 V 1 C41 01 54 CS 2 E333X SMD capacitor 0603 333 X7R 10 50V 1 C20 01 54 CS 2 E10...

Page 68: ...0 L21 L22 L23 L24 01 13 L L S E011 SMD inductor 0805 3 3UH 2 L8 L7 01 13 L L S E006 SMD inductor 0805 1 8UH 1 L40 01 13 L L S E007 SMD inductor 0805 10UH 4 L13 L15 L27 L28 01 13 L Z ESA50 SMD magnetis...

Page 69: ...R15 2R19 01 57 R 2 E750F SMD resistor 0603 75 1 21 3R7 3R8 3R9 8R5 2R28 2R29 3R10 3R11 3R12 3R13 3R14 3R21 3R22 3R23 3R51 3R52 3R53 3R67 3R68 3R69 3R70 01 57 R 2 E101J SMD resistor 0603 100 5 14 8R1 8...

Page 70: ...603 6P NPO 0 25 50 V 2 8C16 8C17 01 54 CS 2 E220N SMD capacitor 0603 22P NPO 5 50V 7 2C69 3C21 3C22 3C23 3C26 3C27 3C56 01 54 CS 2 E330N SMD capacitor 0603 33P NPO 5 50V 2 2C64 2C63 01 54 CS 2 E470N S...

Page 71: ...tor CD110 22UF 16 V 5 11 1 2EC14 01 34 CL D E22U25V0C Electrolyse capacitor CD110 22UF 25 V 5 11 2 3EC22 3EC21 01 34 CL D E10U16VC Electrolyse capacitor CD110 10UF 16 V 5 11 11 3EC1 3EC4 3EC5 8EC1 8EC...

Page 72: ...SMD 12 3D1 3D2 3D3 3D4 3D5 3D6 3D7 3D12 3D13 3D14 3D15 3D16 01 42 Q S E2N3904 Audion 2N3904 SMD 10 1Q1 1Q2 2Q6 3Q3 3Q4 8Q1 8Q2 8Q4 9Q3 9Q4 01 42 Q S E2N3906 Audion 2N3906 SMD 3 2Q5 2Q7 9Q1 01 00 JZ E1...

Page 73: ...M3768C01B Configure table LTD06M 3768C 01 with HDMI configure 1 Bom No Part No Part Name QTY LTD06M 3768C01 without HDMI 02 11 LTD06M3768C 01A Configure table 1 Part No Name Specification QTY LOCA NO...

Page 74: ...r 0805 10UH 1 5L1 01 13 L Z ESA50P SMD magnetism bead 0603 50 PB 2 3FB12 3FB11 01 13 L Z ESB50P SMD magnetism bead 0805 50 PB 4 1L10 1L11 1L12 1L13 01 41 D PS ELL4148 Diode LL4148 SMD 2 5D1 5D2 01 41...

Page 75: ...3 L L S E188 SMD inductor 0805 47UH 2 1L16 1L17 01 38 FUSE D EGP60 Fuse GP60 075 DIP 1 F1 01 40 CON S13 AY1 001 Jack 1 25 5A vertical DIP 1 J1 01 40 CON DPH E024 Jack PH 5A 1 CN16 01 40 CON DCZ E117 U...

Page 76: ...SMD resistor 0603 2K 5 1 R9 01 57 R 2 E103J SMD resistor 0603 10K 5 3 R41 R17 R40 01 57 R 2 E153J SMD resistor 0603 15K 5 4 R23 R24 R25 R26 01 57 R 2 E203J SMD resistor 0603 20K 5 1 R14 01 57 R 2 E223...

Page 77: ...6 D07 D08 D09 D10 01 41 D PS E1SS355 Diode 1SS355 SMD 1 D11 01 41 D WS EUDZ7V5B Diode UDZ7V5B 7 5V 1 ZD1 01 42 Q S E2N3904 Audion 2N3904 SMD 2 Q1 Q4 01 42 Q S E2N3906 Audion 2N3906 SMD 1 Q5 01 42 Q S...

Page 78: ...77 Part 6 Debugging Procedures 1 Signal process diagram...

Page 79: ...and FLI8125 Check the speed of FLASH No Yes Check the connection between EEROM and FLI8125 No Check Pins of FLI8125 If in TV mode check the tuner No Yes Make sure the unit is turned on and The connect...

Page 80: ...A6287 No Check the circuit connected With the loader Yes Focus operation OK Drive signal of F F OK No Check periphery circuit of BA5954 NO Check circuit between laster head and BA5954 Yes B B IR and K...

Page 81: ...V mode check the power for tuner is correct No color Check if the connection with the external device is correct Otherwise make sure the saturation is not zero At last the problem may arise from the F...

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