LG 34UC79G Скачать руководство пользователя страница 1

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Internal Use Only

P/NO :

CHASSIS :

MODEL :

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

SERVICE MANUAL

P/NO : MFL68920199 (1608-REV00)

LED MONITOR

SERVICE MANUAL

LM61B

34UC79G

34UC79G-BG

Содержание 34UC79G

Страница 1: ...nal Use Only P NO CHASSIS MODEL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUAL P NO MFL68920199 1608 REV00 LED MONITOR SERVICE MANUAL LM61B 34UC79G 34UC79G BG ...

Страница 2: ...nc All rights reserved Only for training and service purposes CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 7 TROUBLESHOOTING GUIDE 10 BLOCK DIAGRAM 11 EXPLODED VIEW 12 DISASSEMBLY 13 SCHEMATIC CIRCUIT DIAGRAM APPENDIX CONTENTS ...

Страница 3: ...hout damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks...

Страница 4: ... Type C DisplayPort HDMI x 2 USB hub USB3 0 x 2 Screen split 7 Power Code Length 1 55 0 05M Shape Wall out Color White Weight 0 17kg 10 Refer to Suffix standard and power cord table 8 Input HDMI1 2 IN HDMI 1 and HDMI 2 DP IN Display Port USB Type C None USB UP USB Up stream USB 1 2 USB downstream only with Host PC Quick Charge USB 1 2 H P Audio L R LINE OUT Speaker Line out 9 Cable USB Type C Leng...

Страница 5: ... 119 952 915 864 3 4 44 6 H Pixels 131 75 91 493 1330 1280 48 32 80 1280 x 720 V Lines 119 912 763 720 3 5 35 7 H Pixels 187 25 130 035 1440 1280 160 112 248 1280x1024 V Lines 119 958 1066 1024 1 3 38 8 H Pixels 174 5 83 894 2080 1920 48 32 80 1920x1080 V Lines 74 973 1119 1080 3 5 31 9 H Pixels 235 5 113 221 2080 1920 48 32 80 1920x1080 V Lines 99 93 1133 1080 3 5 45 10 H Pixels 285 5 137 26 2080...

Страница 6: ... support mode Horizontal frequency Horizontal frequency Preset Mode KHz Hz 1 640x480P 31 47 60 2 720x480P 31 47 60 3 1280x720P 45 60 4 1920x1080P 67 5 60 5 1280x720P 37 5 50 6 1920x1080P 56 25 50 7 2560x1080P 56 25 60 8 2560x1080P 66 50 9 720x576P 31 25 50 10 1920x1080I 33 75 60 11 1920x1080I 28 125 50 2 3 HDMI Video input ...

Страница 7: ... AC On at first for downloading HDMI EDID automatically Protocol DDC 2AB 3 3 Function Check 3 3 1 Check Screen Check input and signal items cf work instructions 1 HDMI1 2 2560 x 1080 144Hz 2 DisplayPort1 2 2560 x 1080 144Hz using PC 4 Total Assembly line process 4 1 Write HDCP Key Write HDCP Key into EEPROM by using DDC2AB protocol HDCP Adjustment Jig equipment If error is occurred try to write ag...

Страница 8: ...perature Cool 9 300 K X 0 283 0 03 Y 0 298 0 03 Test Signal Inner pattern 255gray 80IRE Medium 8 000 K X 0 295 0 03 Y 0 305 0 03 Warm 6 500 K X 0 313 0 03 Y 0 329 0 03 Luminance cd m Cool Min 170 Test Signal Inner pattern 255gray 80IRE Medium Min 200 Warm Min 260 Operating Condition Sync H V or Video EUT MSPG6100 LED SET Wattage W Sleep mode Off Off Off White blinking 1 2 Off mode Off 0 3 No Adjus...

Страница 9: ... 3 Use Read E2PROM s specific area as unit of 128 80h byte 84h 5 6 4 EDID Write EEPROM access by using DDC2B protocol 1 Byte write L 0x00 0x7F D data 8 byte write L 0x00 0x10 0x70 5 6 5 EDID Read DDC2B Command A0 A1 128 Byte transfer of EDID Buffer of MICOM No Adjustment contents CMD hex LEN Explanation 1 E E P R O M WRITE E8 94 16 Byte Write 2 84 n n byte Write No Adjustment contents CMD hex ADH ...

Страница 10: ...age according to IC spec Location No IC402 IC403 IC700 IC701 IC900 IC902 3 Serial flash memory for Monitor firmware saving Location No IC202 4 LED driver IC Supporting proper voltage and current according to BLU spec Location No IC700 IC701 5 Headphone AMP Amplify audio signal from Main IC and then provide amplifying signal to H P interface Location No IC501 6 USB Hub IC function of HUB to the PC ...

Страница 11: ...aining and service purposes BLOCK DIAGRAM e DP MST9U11Q1 Mstar E DP DC Jack HDMI Input X TAL 12MHz HDMI SWITCH TMDS TMDS TMDS TPA6138 HP AMP HP 19V DNW116 I2S SP L SP R 3 3V 1 8V 1 15V HP DP Input TMDS USB Type A USB HUB USB Type A USB3 0 USB UP USB3 0 Line out Analog L R Line Out READY ...

Страница 12: ...echanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTI...

Страница 13: ...rposes DISASSEMBLY 1 Preparation 1 1 Preparation tool jig 1 2 Preparation tool Curved PAD 2 Stand Assembly Separation 1 Lay the set by the Curved PAD in Box 2 Disassemble the Stand after pull the button to down 3 Disassemble the Thumb Screw 2ea 4 Remove the Screw 4ea 5 Disassemble the Back Cover By using JIG ...

Страница 14: ... 14 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes 6 Disconnect LED Cable Control Assemble Latch Type E Dp Cable 7 Remove the screw 17EA ...

Страница 15: ...RXC HDMI_RX2 HDMI1_RX1 R125 4 7K HDMI1_RX0 HDMI_RX2 HDMI1_SDA HDMI_SDA HDMI2_RX1 HDMI2_RX0 HDMI1_RX0 HDMI_RX0 JK102 62L020S 34A1N 7T0201 HF_ 14 14 13 13 5 5 12 12 11 11 2 2 19 19 18 18 10 10 4 4 1 1 17 17 9 9 8 8 3 3 16 16 7 7 6 6 15 15 20 20 21 21 AR102 33 AR105 33 DP_DET VA100 18V 10pF VA104 18V 10pF VA102 18V 10pF VA109 18V 10pF OPT VA107 18V 10pF VA105 18V 10pF VA110 18V 10pF OPT VA108 18V 10p...

Страница 16: ...E_OUT_L AUD_LINE_OUT_R IC200 MST9U10Q1 MSTAR Q1 1 SAR10 GPIO_X10 2 CABLE5V1 GPIO_X11 3 DDCD3_CK GPIO_X13 4 DDCD3_DA GPIO_X14 5 VDDP_1 6 GND_1 7 VDD_1 8 HPD1 GPIO_X12 9 HRX0_CN 10 HRX0_CP 11 AVDD_HRX0 12 HRX0_0N 13 HRX0_0P 14 GND_2 15 HRX0_1N 16 HRX0_1P 17 AVDDL_HRX0_1 18 AVDDL_HRX0_2 19 HRX0_2N 20 HRX0_2P 21 GND_3 22 AVDD_DP 23 DPRX_0P 24 DPRX_0N 25 GND_4 26 DPRX_1P 27 DPRX_1N 28 AVDDL_DP 29 DPRX_...

Страница 17: ...6V C183 10uF 10V OPT C148 0 1uF 16V C109 10uF 10V C257 0 1uF 16V OPT C235 0 1uF 16V VDD_DRAM_A C114 10uF 10V C241 0 1uF 16V C154 0 1uF 16V OPT C252 0 1uF 16V OPT C181 10uF 10V OPT C245 0 1uF 16V C134 0 1uF 16V C130 0 1uF 16V C191 0 1uF 16V C123 10uF 10V C206 0 1uF 16V OPT C160 0 1uF 16V OPT 1 8V_DDR C196 0 1uF 16V C133 0 1uF 16V C142 0 1uF 16V 1 15V_VDD_DDR_B C232 1uF 10V AVDD_DP C170 0 1uF 16V C2...

Страница 18: ...N3904S E B C R404 10K R403 1K PD_CTLZ_1 8V AR401 10K PD_CTL R423 1K PD_CTL_DDR AR400 10K PD_CTLZ_1 15V 3 3V_NORMAL R422 10K 1 R414 51K L408 BLM15PX121SN1 L400 BLM15PX121SN1 C438 0 1uF 50V C429 10uF 10V C430 10uF 10V OPT R434 47K 1 R425 36K 1 R427 200K R433 24K 1 ZD402 2 5V PD_CTLZ_1 15V C432 0 47uF 16V R430 100 C434 0 1uF 16V C436 10uF 10V OPT C431 0 1uF 16V 1 8V_DDR C435 10uF 10V IC403 MP2122GJ 3...

Страница 19: ...2uF 25V AMP C554 2 2uF 25V AMP C511 2 2uF 25V AMP C513 2 2uF 25V AMP R546 1K R549 10 R547 1K R548 10 HP_ROUT_HP HP_LOUT_HP R542 100 C549 2200pF 50V C550 2200pF 50V R543 100 C543 1uF 10V OPT Q504 2N3904S E B C C542 2 2uF 10V R540 1K 3 3V_NORMAL R535 4 7K 3 3V_NORMAL R538 4 7K OPT C548 10uF 10V R539 10K R534 10K OPT 3 3V_HP_AMP R541 0 OPT HP_OFF R531 AMP 0 1 8W 5 R545 AMP 0 1 8W 5 R530 AMP 0 1 8W 5 ...

Страница 20: ... ISENSE 23 GATE 24 VIN1 25 VCC1 26 COMP 27 EN1 28 PWM 29 EP GND WLED_ADIM C736 1uF 50V ZD700 5 6V OPT R746 18K 1 WLED_ENABLE R711 100 IC701 MP3378E 3 ISET 2 OSC 4 ADIM 1 GND1 6 LED3 5 LED4 7 LED2 8 LED1 9 OVP 10 NC_1 11 NC_2 12 FB 13 EN2 14 VCC2 15 VIN2 16 SW 17 GND2_1 18 GND2_2 19 AGND 20 BST 21 SYNC 22 ISENSE 23 GATE 24 VIN1 25 VCC1 26 COMP 27 EN1 28 PWM 29 EP GND WLED_ENABLE R721 14K 1 R731 56K...

Страница 21: ...TAL_2 C920 0 1uF 16V C946 0 01uF 25V C927 0 01uF 25V C911 1uF 10V 3 3V_HUB R942 10K OPT OCS_DN2 C939 0 01uF 25V OCS_DN1 R927 10 VBUS_DET R914 4 7K VBUS_DET USB_UP_TX R948 1K R941 10K OPT R929 10 C931 0 1uF 16V R917 4 7K EN_DN1_PWR R949 1K R938 10K OPT R910 1M 1 R933 10 USBDN_DM1 C935 0 01uF 25V 3 3V_HUB USB_UP_TX R904 4 7K R902 4 7K C943 10uF 10V R962 100K R957 47K EN_DN2_PWR R958 6 8K 1 C926 0 1u...

Страница 22: ......

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