Daewoo HY-LCD32L2 Service Manual Download Page 10 | Manualshive

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Hardware Trouble shooting

-10-

5-4) Display Trouble (black screen)

Black screen

Check if the voltage on

CN3/BLON is 5V

N

Y

Check if the power supply

for inverter is normal

Y

N

Check the control circuit from

BLON to U12 or U12 is damaged

Repair the power supply

The inverter is damaged

All manuals and user guides at all-guides.com

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Summary of Contents for HY-LCD32L2

Page 1: ...se refer to PPL Parts Price List in Service Information Center Service Manual LCD TV CHASSIS Model S M NO TSLM10MEF0 LX32L1 LX32L2 LM32L1 LM32L2 LP32L1 LP32L2 HY LCD32L2 HY LCD32R1 LX42L1 LX42L2 LM42L...

Page 2: ...ubl black screen 10 5 Audio Trouble No sound 11 6 Function Trouble TV video 12 7 Function Trouble PC 13 8 Function Trouble SCART HDMI YPbPr DVB TV 14 6 Main Board Layout 15 1 Main Board layout of Sout...

Page 3: ...rking as electric circuit grounding make sure to check if any screw is missing when assembling reassembling Do not leave any screws inside the set 5 A LCD Set contains different kinds of connector cab...

Page 4: ...as no problem 4 Picture of analog program is noisy Check the RF cable connection Check if Picture N R is ON Change the Channel Fine Tune value 5 Sound is not generated in HDMI mode Reconnect HDMI jack...

Page 5: ...ndard Music Standard Music Standard Music POWER TV SYSTEM TV TUNING CHASSIS 32 INCH 32L1 32L2 42 INCH 42L1 42L2 LCD Panel Pre set Sound modes Standard Music Movie Sports User Movie Sports User Movie S...

Page 6: ...ggle key If you want to change white balance data press key to select option that you want to adjust then press key to adjust e s u t o N 6 S e s u t o N 7 S S8 Factory Setting menu Show Factory menu...

Page 7: ...tput Y N for 5V output Check the circuit Check U4 for 1 2V Y N Y N of U2 U3 Check if the power on pin of power board for 5V OK Check U4 for 1 2V output Y N U4 DC DC IC damaged L2 10 H is damaged or fa...

Page 8: ...and connected tightly and connected tightly Y N Check if the LCD panel is OK Y N Check if the output circuit from U12 to the jack to panel are normal Y N Change the cable for panel Change LCD Check t...

Page 9: ...N Is there voltage on grid of Q8 3407 can changed 12 0V or 5V 0 Is there output signal from U12 N Y Y N CN4 is ill connected is there voltage for panel or Q8 is damaged Check if the circuit of Q9 norm...

Page 10: ...lack screen Check if the voltage on CN3 BLON is 5V N Y Check if the power supply for inverter is normal Y N Check the control circuit from BLON to U12 or U12 is damaged Repair the power supply The inv...

Page 11: ...in11 12 39 40 have signal output Check if U12 pin64 65 has signal output Y N Y N Check peripheral audio equipment Repair the power l f R Check the Check the circuit from U12 Check the circuit between...

Page 12: ...n5 6 has I2C signal N Y Check if t1 pin9 10have signal N Y Check if T2 pin2 for variational voltage within 1 8V 4 3V N Y Check the circuit from T2 pin9 10 to U12 Check the circuit in this part Change...

Page 13: ...f the R G B input signal of U12 is normal Y N Check if the signal of V sync H sync is OK Y N Y N Y N Do auto adjust process on the menu Check the circuit of R G B input Check the circuit of VS HS Do r...

Page 14: ...k if R G B i t Check if the U12 6M181 i 44 Check if R G B input of U12 is normal N Y U12 6M181 pin44 have signal input Check the circuit Y N 1 HDMI interface false welding 2 System setting wrong do re...

Page 15: ...15 6 Main Board Layout 6 1 Main Board layout of South America All manuals and user guides at all guides com...

Page 16: ...16 Main Board Layout 6 2 Main Board layout of Middle East All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 17: ...0 5VRMS POWER Requirement 24V 12V 5V 5VSB To Panel 12V Management Standby Power Consumption 0 5W Board Only COMB FILTER 3D DEINTERLACE 3D WEAK SIGNAL ENHANCEMENT YES NOISE REDUCTION YES USB FUNCTION M...

Page 18: ...WMA AAC MP2 PCM AC3 Max Resolution And Frame Rate 720p 30fps Max Data Rate 10 Mbps Xvid MPEG 2 MPEG 4 DIVX Max Resolution And Frame Rate 720p 30fps Max Data Rate 20 Mbps mp4 MPEG 2 MPEG 4 DIVX ts trp...

Page 19: ...e w o P C D V 2 1 V 2 1 0 1 CN3 6PIN 2 0 INVERTER CONNECTOR NO SYMBOL DESCRIPTION 1 12V 12V DC Power Supply for high pressure bar 2 12V l e n a P r o f l o r t n o C F F O N O t h g i L k c a B O L B...

Page 20: ...0 E X R 9 1 l a n g i S 0 N E V E S D V L 0 E X R 0 2 l a n g i S 1 N E V E S D V L 1 E X R 1 2 l a n g i S 1 N E V E S D V L 1 E X R 2 2 l a n g i S 2 N E V E S D V L 2 E X R 3 2 l a n g i S 2 N E V...

Page 21: ...e L o i d u A K P S L 1 2 GND Ground 3 GND t u p t u O l e n n a h C t h g i R o i d u A K P S R 4 CN24 4PIN 2 54 AMPLIFIER POWER SUPPLY CONNECTOR NO SYMBOL DESCRIPTION 1 24V 24V DC Power Supply 2 24...

Page 22: ...ll be auto restart after upgrading succeful 2 Upgrading from USB port build in Mainboard At standy 2 1 Copy F W to USB disk U bin_6m181 bin File Name should be rename to bin_6m181 bin and should be se...

Page 23: ...1 2 NC 5VSB ON OFF ON OFF 12V 24V 1 2 1 2 VCC2 4 4 3 VCC1 24V NC 8 NC 1 2 4 3 A K R 5V3 0A 5VSB 8 NC 1 12V ON OFF 5V 24V 1 2 3 4 5 6 7 8 MU 3 ZCD 5 GND 6 CS 4 INV 1 GD 7 VCC 8 COMP 2 VCC VCC VCC1 9 9...

Page 24: ...7 DISABLE 8 PFC STOP 9 GND 10 LVG 11 VCC 12 NC 13 OUT 14 HVG 15 VBOOT 16 ACL VCC2 4 3 A K R 1 2 5V ON OFF ON OFF 12V 24V 1 2 1 2 VCC2 4 4 3 VCC1 24V 8 1 2 4 3 A K R 5VSB 8 9 11 4 5 3 2 1 12V ON OFF 5...

Page 25: ...hm 0402 5 1 16W Q2 NC D MMBT3904 7 F R3 NC 68Kohm 0402 5 1 16W Q1 NC D MMBT3904 7 F 3 3V_STB C1 0 1uF 0402 Y5V 80 20 25V C3 0 1uF 0402 Y5V 80 20 25V 5V_STB P_panel M1 MARK M2 MARK M3 MARK M4 MARK M5 M...

Page 26: ...r PC_VSIN FB YPbPr_YI YPbPr_PbI YPbPr_PrI R161 47Kohm 0402 5 1 16W C100 1000pF 0402 X7R 10 50V 5V_VID 5V L8 MGGB1005M301HT LF L9 MGGB1005M301HT LF SCART AROUT SC_SW SCART_L_IN SCART_R_IN R52 0ohm 0402...

Page 27: ...SCL1 19 B11 20 A11 21 VCC 22 B12 23 A12 24 GND 25 B13 26 A13 27 NC 28 B14 29 A14 30 REXT 31 POWDN 32 SDA_CTL 33 SCL_CTL 34 I2C_ADDR 35 Y4 36 Z4 37 VCC 38 Y3 39 Z3 40 GND 41 Y2 42 Z2 43 HPD_SINK 44 Y1...

Page 28: ..._ AVDD_DDR_2 5V_ AVDD_DDR_2 5V_ DVDD_DDR_1 2V R228 NC 1Kohm 0402 1 1 16W C136 NC 0 1uF 0402 Y5V 80 20 16V AVDD_DDR_2 5V_ R217 NC 1Kohm 0402 1 1 16W C130 0 1uF 0402 Y5V 80 20 16V AVDD_PLL AVDD_DDR_2 5V...

Page 29: ...B 15 SUB 16 STBYL 17 GAIN1 18 IN1 19 CBIAS 20 ROSC 21 AVCC 22 GND 23 SUB 24 SUB 25 SUB 26 SUB 27 CLOCK 28 VREF 29 PROT 30 NC 31 OUT2 40 IN2 32 GAIN2 33 MUTEL 34 SUB 35 SUB 36 VD2 37 VD2 38 OUT2 39 U13...

Page 30: ...6W R313 NC 22ohm 0402 5 1 16W Q28 NC PMBT3904 5V_IF 5V_IF R323 NC 4K7ohm 0402 5 1 16W R326 NC 1Kohm 0402 5 1 16W R325 0ohm 0402 5 1 16W R321 NC 6K8ohm 0402 5 1 16W R319 NC 6K8ohm 0402 5 1 16W R327 NC...

Page 31: ...10 Mechanical Exploded View 31 All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 32: ...Mechanical Exploded View 32 All manuals and user guides at all guides com...

Page 33: ...Mechanical Exploded View 33 All manuals and user guides at all guides com...

Page 34: ...Mechanical Exploded View 34 All manuals and user guides at all guides com...

Page 35: ...DAEWOO CORP 295 Gongdan dong Gumi city Kyenongbuk Korea All manuals and user guides at all guides com...

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