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Daewoo DSL-19M1TC Service Manual
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Daewoo DSL-19M1TC Service Manual

Daewoo DSL-19M1TC Service Manual

Lcd tv dvd combo
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OSDSL19001
LCD TV DVD COMBO
DSL-19M1TC
DEC. 2006

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Summary of Contents for Daewoo DSL-19M1TC

  • Page 1 OSDSL19001 LCD TV DVD COMBO DSL-19M1TC DEC. 2006...
  • Page 2 DSL19M1TC SERVICE MANUAL CONTENT Brief Introduction Of The DSL19M1TC PART 1： Specification Schematic Diagram Printed Circuit Key Ics And Assemblies PART 2： Detailed Circuit PART 3: Main Board ◆ DVD Board ◆ HI-voltage Board ◆ VGA Board ◆ PART 4:Disassemble/Assemble Procedure PART 5: Parts List...

  • Page 3: Specifications

    Part 1 Brief Introduction Of The DSL19M1TC Specification hank you for buying ALBA LCD-TV Product. As a high-resolution LCD-TV with a 19-inch screen, the DSL19M1TC incorporates DVD player, LCD display and TV receiver in one system. It adopts an MPEG2 decoding format to achieve horizontal resolution more than 500 lines.

  • Page 4: Schematic Diagram

    Schematic Diagram 12V IN POWER SUPPLY Panel AV OUT Composite 19” TFT LCD 12V 5V LVDS 3.3V 1.8V PC IN FLI8125 AT49BV040B Hsync Vsync Decoder 74LVC125 FLASH & AV IN Scaler Composite SVIDEO IN Composite FSAV330 SCART IN video switch TUNER SCART OUT YPbPr...

  • Page 5: Printed Circuit

    Printed Circuit Main Board 3269C SDcard board 3274C Earphone board 3272C Keystoke board 3270C Remote control board 3271C VGA board 3273C (Top layer view)
  • Page 6 Main Board 3269C SDcard board 3274C Earphone board 3272C Keystoke board 3270C Remote control board 3271C VGA board 3273C (Bottom layer view)
  • Page 7 DVD board 2777C(Top layer view) DVD board 2777C (Bottom layer view)
  • Page 8 HI-voltage Board 2770C(Top layer view) HI-voltage Board 2770C(Bottom layer view)
  • Page 9 Part 2 Key ICs And Assemblies On Main Board On DVD board Serial No Position Type Serial no Position Type FSAV330 BA033T L7808C-V LM1117 AT49BV040B MT1389HD FLI8125 BA5954 FDS9435A BA6208F AM1510 K4S641632H AT24C32A MX29LV160BT AP1513S AT24C16 CD4052 NJM4558 MSP3415G WM8714 9U1 9U2 TDA1517ATW 4U2 6U1 6U3...
  • Page 10 ICS ON MAIN BOARD FSAV330 Low On Resistance Quad SPDT Wide Bandwidth Video Switch...
  • Page 11 FLI8125 The FLI8125 is a cost-effective, highly-integrated, mixed signal solution for TV and Digital Video applications. 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 service support, and the built-in microprocessor enables full system control without external devices.
  • Page 12 ·Pinout ·Pin List I/O Legend: A = Analog, I = Input, O = Output, P = Power, G= Ground Table 1: Analog Input Port Pin Name Description VDD18_A Analog Power (1.8V) for A & B Channels. Must be bypassed with 0.1uF capacitor to the analog system ground plane.
  • Page 13 GNDS Analog Ground. Must be directly connected to the analog system ground plane on board. Positive analog input ‘A’ for channel 1. The input has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network. GNDS Analog Ground.
  • Page 14 Negative analog sync input for channels 1 through 4. This acts as the return Path for the Sources connected to SV Channel Inputs. This has to be AC coupled using a series 20 Ohm resistor and 0.1uF Capacitor network to Analog Ground Plane on board. VO_GND Analog Ground.
  • Page 15 Pin Name Description VID_DATA_IN_8 Input Pr / Pb Data in case of 16 Bit Video Input (CCIR601) of Video Input – 1 VID_DATA_IN_9 OR Input Green Data in case of 24 Bit Video Input VID_DATA_IN_10 VID_DATA_IN_11 VID_DATA_IN_12 VID_DATA_IN_13 VID_DATA_IN_14 VID_DATA_IN_15 VID_DATA_IN_16 Input Blue Data in case of 24 Bit Video Input VID_DATA_IN_17...
  • Page 16 Pin Name Description GPIO14/PWM3/ This Pin can be programmed to give out Pulse Width Modulated Output Pulses for external use. SCART16 Or it can be programmed to sense the Fast Blank Input signal from a SCART I/P source. When not used, this pin is available as General Purpose Input/output Port. This Pin provides the Output Data in case of Boundary Scan Mode.
  • Page 17 Table 7: TTL Display Interface Pin Name Description For 8-bit panels For 6-bit panels PBIAS Panel Bias Control (backlight enable) [Tri-state output, 5V- tolerant] PPWR Panel Power Control [Tri-state output, 5V- tolerant] Digital Power for TTL Block. Connect to digital 3.3V supply. AVDD_LV_33 Reserved.
  • Page 18 Blue channel bit 6 (Odd) Blue channel bit 4 (Odd) PD46 PD47 Blue channel bit 7 (Odd) Blue channel bit 5 (Odd) Note: In case of 24 Bit TTL Panels the RGB Odd Channel Outputs will not be used. In that case they can be made available for other purposes as Address &...
  • Page 19 FDS9435A Single P-Channel Enhancement Mode Field Effect Transistor SO-8 P-Channel enhancement mode power field effect transistors are produced using Fairchild's proprietary, high cell density, DMOS technology. This very high density process is especially tailored to minimize on-state resistance and provide superior switching performance.
  • Page 20 AT24C32A 2-Wire Serial EEPROM 32K (4096 x 8)
  • Page 22 LM1117 (SOT-223)
  • Page 23 ICS ON DVD BOARD BA033T Low saturation voltage type 3-pin regulator...
  • Page 24 LM1117 (See Page 21) MT1389HD Abbr. : SR : Slew Rate PU : Pull Up PD : Pull Down SMT : Schmitt Trigger 2MA~16MA : Output buffer driving strength. Main Alt. Type Description RF Interface ( 26 ) RFGND18 Ground Analog ground RFVDD18 Power...
  • Page 25 LDO1 Analog Output Laser driver output ADC Power ( 2 ) ADCVDD3 Power Analog 3.3V Power for ADC ADCVSS Ground Analog ground for ADC VPLL (3) VPLLVSS Ground Analog ground for VPLL CAPPAD Analog Inout VPLL External Capacitance connection VPLLVDD3 Power Analog 3.3V Power for VPLL Reference Voltage ( 3 )
  • Page 26 RF Data PLL Interface ( 9 ) Main Alt. Type Description JITFO Analog output The output terminal of RF jitter meter. JITFN Analog Input The input terminal of RF jitter meter. PLLVSS Ground Ground pin for data PLL and related analog circuitry. IDACEXLP Analog output Data PLL DAC Low-pass filter...
  • Page 27 Micro Controller and Flash Interface (48) Main Alt. Type Description Inout HIGHA0 2~16MA, SR Microcontroller address 8 Inout HIGHA1 2~16MA, SR Microcontroller address 9 Inout HIGHA2 2~16MA, SR Microcontroller address 10 Inout HIGHA3 2~16MA, SR Microcontroller address 11 Inout HIGHA4 2~16MA, SR Microcontroller address 12 Inout...
  • Page 28 Inout IOA0 2~16MA, SR Microcontroller address 0 / IO Main Alt. Type Description Inout IOA1 2~16MA, SR Microcontroller address 1 / IO Inout IOA2 2~16MA, SR Microcontroller address 2 / IO Inout IOA3 2~16MA, SR Microcontroller address 3 / IO Inout IOA4 2~16MA, SR...
  • Page 29 Inout 1) Flash address 21 / IO IOA21 2~16MA, SR 2) While External FLASH size <= 2MB: I) GPIO Inout 2~16MA, SR Microcontroller address latch enable PU, SMT Main Alt. Type Description IOOE# Inout 2~16MA, SR Flash output enable, active low / IO IOWR# Inout 2~16MA, SR...
  • Page 30 Inout 1) Microcontroller port 3-0 UP3_0 4MA, SR 2) 8032 RS232 RXD PU, SMT Inout 1) Microcontroller port 3-1 UP3_1 4MA, SR 2) 8032 RS232 TXD PU, SMT 1) Microcontroller port 3-4 Inout 2) Hardwired RD232 RXD UP3_4 RXD SCL 4MA, SR clock pin PU, SMT...
  • Page 31 Audio left/right channel clock Trap value in power-on reset: I) 1 : use external 373 II) 0: use internal 373 Inout 4MA, PD, ALRCK Output Audio bit clock ABCK Fs64 Phase de-modulation Non-pull Inout ACLK Audio DAC master clock Non-pull Audio serial data 0 (Front-Left/Front-Right) DSD data left channel Trap value in power-on reset :...
  • Page 32 Output 2~16MA, SPDIF SPDIF output SR : ON/OFF Non-pull APLLVDD3 Power 3.3V Power pin for audio clock circuitry APLLCAP Analog Inout APLL External Capacitance connection APLLVSS Ground Ground pin for audio clock circuitry ADACVSS2 Ground Ground pin for AUDIO DAC circuitry ADACVSS1 Ground Ground pin for AUDIO DAC circuitry...
  • Page 33 Output 4MA, Video data output bit 3 YUV3 CVBS Analog composite output DACVDDA Power 3.3V power pin for VIDEO DAC circuitry Output Video data output bit 4 YUV4 4MA, SR Green or Y DACVSSA Ground Ground pin for VIDEO DAC circuitry Output Video data output bit 5 YUV5...
  • Page 34 Dram Interface ( 58 ) ( Sorted by position ) IO_0 Inout Digital Video output C bit 0 (RD16) Non-pull GPIO IO_1 Inout Digital Video output C bit 1 (RD17) Non-pull GPIO IO_2 Inout Digital Video output C bit 2 (RD18) Non-pull GPIO...
  • Page 35 output DRAM clock enable RCLK Inout Dram clock Inout DRAM address 3 Inout DRAM address 2 Inout DRAM address 1 Inout DRAM address 0 Inout RA10 DRAM address 10 Inout DRAM bank address 1 Inout DRAM bank address 0 RCS# output DRAM chip select, active low RAS#...
  • Page 36 JTAG Interface( 4 ) Serial interface port 3 data-out Version AD input port 4 V_ADIN4 Inout Non-pull GPIO Serial interface port 3 data-in Version AD input port 5 V_ADIN5 Inout Non-pull GPIO Serial interface port 3 clock pin Version AD input port 6 V_ADIN6 Inout Non-pull GPIO...
  • Page 37 BA5954...
  • Page 39 BA6208F The BA6208F is monolithic ICs used for driving reversible motors. It allows control of reversible 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 output power section, which can supply an output current of up to 100mA (typical) according to the logic control.
  • Page 40 .K4S641632H-TC60 SDRAM 64Mb H-die(x16) The K4S641632H is 67,108,864 bits synchronous high data rate Dynamic RAM organized as 4x 1,048,576 words by 16 bits, fabricated with SAMSUNG’s high performance CMOS technology. Synchronous design allows precise cycle control with the use of system clock I/O transactions are possible on every clock cycle.
  • Page 41 ·Pin Configuration (top view)
  • Page 42 MX29LV160BT 16M-BIT[2Mx8/1Mx16]CMOS SINGLE VOLTAGE 3V ONLY FLASHMEMORY...
  • Page 45 AT24C16 2-Wire Serial CMOS E PROM 16k ( 2048 x 8 ) The AT24C16 provides 16384 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 2048 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential.
  • Page 47 NJM4558 DUAL OPERATIONAL AMPLIFIER...
  • Page 49 WM8714 24-bit, 96kHz Stereo DAC The WM8714 is a high performance stereo DAC designed for audio applications such as DVD, home theatre systems, and digital TV. The WM8714 supports data input word lengths from 16 to 24-bits and sampling rates up to 96kHz. The WM8714 consists of a serial interface port, digital interpolation filters, multi-bit sigma delta modulators and stereo DAC in a 14-pin SOIC package.

  • Page 50: Pin Description

    ·Pin Description NAME TYPE DESCRIPTION LRCIN Digital input Sample rate clock input Digital input Serial audio data input BCKIN Digital input Bit clock input No connect No internal connection Analogue output Analogue internal reference VOUTR Analogue output Right channel DAC output Supply Negative supply Supply...
  • Page 51 ICS ON HI-VOLTAGE BOARD BIT3193 High Performance PWM Controller BIT3193 integrated circuit provides the essential features for general purpose PWM controller in a small low cost 16-pin package. BIT3193 has built-in a low frequency PWM generator for any specified application. BIT3193 includes latched off protection feature may make the system more reliable while compare to other similar products.
  • Page 52 ·Pin Description Symbol Descriptions The inverting input of the error amplifier. Output of the error amplifier. LOAD A switch that connected to the high frequency triangle wave generator. This switch is open while ISEN pin <1.3V. An external resistor connected here may change the operation frequency of CTOSC in open load situation.
  • Page 53 AP4511M N AND P-CHANNEL ENHANCEMENT MODE POWER MOSFET...
  • Page 54 Part 3 Detailed Circuit MAIN BOARD DVD BOARD HI-VOLTAGE BOAD VGA BOAD...
  • Page 55 Part 4 Disassemble/Assemble Procedure 1. Fig1: Front view of the whole assembly diagram in which: front panel (1), middle panel (2), LCD screen (3), base bottom (4), power indicator (5), remote sensor (6). 2. Fig2: Back view of the whole assembly diagram in which: rear panel (1), handle (2), cover for lines output (3).
  • Page 56 3. Fig3: Back view without handle and cover for lines output. Remove four screws from (A) position.
  • Page 57 4. Fig4: Assembly diagram without the rear panel and base bottom in which: shield cover (1), side panel (2), key pad (3), right shield panel (4), LCD shield (5), speaker (6). Remove the screws for rear panel fixing from positions like (A). Remove the screws for base bottom fixing from (B) position.
  • Page 58 6. Fig6: Assembly diagram without DVD loader in which: Main board (1), VGA board (2), DVD board (3), HI-voltage board (4), Eadphone board (5). Remove the screws for loader fixing from (A) position. 7. Fig7: Remove the USB and headphone board and the screws for its fixing from (A) positions to see the Card board (1).
  • Page 59 8. Fig8: Remove the screws for Card board fixing from (A) positions to see the Remote control board (1). 9. Fig9: Remove the screws for VGA board fixing from (A) positions.
  • Page 60 10. Fig10: Remove the screws for HI-voltage fixing from (A) positions, screws for DVD board fixing from (B) positions, screws for main board fixing from (C) positions and screws for remote control board fixing from (D) positions. 11. Fig11: Remove the screws for side panel fixing from (A) positions and screws for speakers fixing from (B) positions.
  • Page 61 13. Fig13: Remove the screws for LCD screen and its shield fixing from (A) positions. 14. Fig14: Back view of the middle panel and front view of the front panel. Remove the screws for front panel fixing from (A) positions.
  • Page 62 15. Fig15: The connections between the DVD board and the Card board, the USB and Headphone board, the Key pad board.