LiteOn U170ATA Скачать руководство пользователя страница 1 | Manualshive

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LiteOn U170ATA Скачать руководство пользователя страница 1

17-inch LCD Monitor

U170ATA

Service Manual

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Содержание U170ATA

Страница 1: ...17 inch LCD Monitor U170ATA Service Manual...

Страница 2: ...heral circuit 1 5 System reset LED control circuit 1 6 E2 PROM for PNP 1 7 E2 PROM 2 8 CPU circuit 2 8 1 Dection of POWER switch status 2 8 2 Display mode identification 2 8 3 User control 4 8 4 Contr...

Страница 3: ...4 I324 3 terminal regulator A 2 5V power supply for Scaler IC I315 is generated from the 5V source Q307 I321 ON OFF control for LCD Module ON OFF control is performed for power ON OFF and also for the...

Страница 4: ...isplay mode identification l The display mode of input signal is identified based on Table 1 l When the mode has been identified through the measurement of horizontal and vertical frequencies the tota...

Страница 5: ...z 35 16 36 8 VESA 800 x 600 60Hz 37 88 40 9 VESA 800 x 600 75Hz 46 88 49 5 10 VESA 800 x 600 72Hz 48 08 50 11 VESA 800 x 600 85Hz 53 67 56 25 12 MAC 832 x 624 75Hz 49 72 57 283 13 VESA 1024 x 768 60Hz...

Страница 6: ...4 870 LINE 1031 20 1280 x 960 960 LINE 1027 21 22 1280 x 1024 1027 LINE 17 18 19 9 3 2 Functions Control is effected for the push switches to be used when the user changes the parameters in order to m...

Страница 7: ...ction P3 5 17 I IICCLK IIC bus clock P3 4 16 I O IICDATA IIC bus data 8 5 2 I2 C controlled functions The following functional controls are effected by I2 C 1 Control of EEPROM I305f for parameter set...

Страница 8: ...e When the POWER switch is pressed the POWER OFF signal is turned H When this H potential is detected the CPU begins to establish the respective power supplies according to the sequence shown below PO...

Страница 9: ...WER switch is pressed while the power supply is ON the POWER ON signal is turned H When this H potential is detected the CPU begins to turn off the respective power supplies according to the sequence...

Страница 10: ...19 DDC_GND L Detect Dsub cable plug in 20 XTAL2 Crystal signal out 21 XTAL Crystal signal in 22 GND 23 NC P2 0 24 A8 High order address byte P2 1 25 A9 High order address byte P2 2 26 A10 High order...

Страница 11: ...isplay 8 5 2 OSD Adjust problem 8 6 Abnormal plug and play operation 9 6 1 Abnormal DDC2 9 7 Checking the interface circuit of sync signal 10 7 1 Checking the control circuit of horizontal sync pulse...

Страница 12: ...puter is output and if the video cable is connected normally No Preceed No OSM display section OK Proceed Checking the resolution change IC movement section NG Input the sync signal of computer or cha...

Страница 13: ...displayed on screen when you push the PROCEED key NG 1 Change pattern of video signal output on the host 2 Reconnect the video cable 3 Change the video cable Check the video cable for failure Check th...

Страница 14: ...ock being outputted under the condition that a LCD module is connected to L322 pin 2 OK NG Failure point 1 I315 failure 2 Printed wire broke between I315 and L322 pin 2 Check the H sync pulse of negat...

Страница 15: ...2 Printed wire broke between I315 and RN314 pin 6 Check the data signal output on I315 R G B data pin OK NG Failure point 1 I315 failure Failure point 1 The cable broke between P304 and LCD module 2...

Страница 16: ...between P312 pin 1 Check the BKLT_EN signal of the rectangle input I327 pin 3 at TTL high level OK NG Is a H level being output in the TTL level from I306 pin 14 Or is BKLT_EN signal of the rectangle...

Страница 17: ...between I315 data line and I319 I320 2 I315 failure Check the negative horizontal sync pulse output to RN314 pin 8 from I315 pin F20 at TTL level OK NG Failure point 1 Printed wire broke between I315...

Страница 18: ...nted wire broken between I319 I320 and P307 OK NG Failure point 1 R396 open 2 Printed wire broken between I318 I316 I317 pin 35 and I315 pin T3 3 I315 failure Check all Data Address pins signal betwee...

Страница 19: ...pin P1 and I302 pin 6 7 RN301 RN303 open short Proceed Checking the resolution change IC movement section 5 1 NO OSM display 5 2 OSD Adjust problem OK NG Check the input TTL level whether was changed...

Страница 20: ...synchronize SCLK at TTL level OK NG Failure point I310 I312 failure Failure point 1 The host machine isn t communicating in DDC2 mode 2 The video cable may have failed or may not to have connections f...

Страница 21: ...wire broke between P304 pin 13 and I315 pin L2 3 FB305 R329 open 4 R330 C352 short Process Checking the resolution change IC movement section Check the vertical sync signal on I315 pin K1 TTL level OK...

Страница 22: ...Print wire broke between X303 pin 5 and I315 pin J4 OK NG Failure point Print wire broke between and X303 pin 8 and power supply Failure point X303 failure Is 5 0V supplied to I315 pin T1 at High lev...

Страница 23: ...o power on Check the 19V power is supplied from AC adapter OK NG Failure point AC adapter failure Is LED turned on in amber momentarily when a power button is pushed OK NG Failure point Fuse failure P...

Страница 24: ...put of 3 3V line voltage from I323 pin 2 Printed wire broke between I322 pin 1 and L314 pin 2 OK NG Is the output FB335 being inputted to I315 pin 3 OK NG Failure point Printed wire broke between I323...

Страница 25: ...ed wire broke between output of FB331 and I302 power supply pin Is 24MHz clock input to I302 pin 20 and 21 at TTL level OK NG Failure point X301 failure Check the input of 5V H pulse from I302 pin 10...

Страница 26: ...JK011 pin 2 3 of the host PC OK NG Is the waveform which is the same as JK011 being inputted to I006 pin 2 29 Failure point Audio cable disconntction OK NG Failure point 1 Printed wire broke between...

Страница 27: ...failure Is the output waveform of I007 pin 4 6 being inputted to P012 pin 2 3 OK NG Failure point 1 Speaker cable disconnection 2 Speaker failure b Is the H signal of the TTL level being inputted to...

Страница 28: ...F301 6851105092 FUSE SLOW TR5 T CG90L 4 3 0 3 7 I301 6444006108 IC MOS M51953AFP 8P SOP 8 I302 6448015548 IC CPU PROM P87C51RD IA 44P PL 9 I304 6446006608 IC TTL 74HCT573DT 20P SMD PHIL 10 I305 64480...

Страница 29: ...00 5114600001 CONTROL BD U170ATUAV 99 27 D501 6418004401 LED LTL 36EDJP 1 Y 3 G LITEON 28 I006 6442027700 IC Linear BH3856S 30P SDIP ROH 29 I007 6442033000 IC TDA2616 9P SOT131 PHILIPS 30 I008 6442027...

Страница 30: ...EL U170ATA U170BTA SCHEMATIC REV 01 PTB 1195 9 01 VIDEO DECODER BY 10 INPUT INTERFACE 8 DESCRIPTION POWER I TITLE SHEET DESCRIPTION For LiteON 1 2 9th OCT 2001 BASED ON 0E SCHEMATICS FOR LITEON Andrew...

Страница 31: ...4 ASIC gm5020 DDC_SDA IRQ DDC_SCL VCLK RX2 RXC RXC RX2 RX1 RX1 RX0 RX0 YUV 0 7 RESET HCLK VS HS DABLU 0 7 FSCLK FSRAS FSDQM0 DCLK FSCKE DBGRN 0 7 DEN FSADDR 0 13 FSCAS FSDQM3 FSWE DAGRN 0 7 DHS DBBLU...

Страница 32: ...42 43 44 1 12 23 34 P1 0 T2 P1 1 T2EX P1 2 ECI P1 3 CEX0 P1 4 CEX1 P1 5 CEX2 P1 6 CEX3 WAIT P1 7 CEX4 A17 W RST P3 0 RXD P3 1 TXD P3 2 INT0 P3 3 INT1 P3 4 T0 P3 5 T1 P3 6 WR P3 7 RD A16 XTAL2 XTAL1 V...

Страница 33: ...L302 EF_1T2012 050T 1 2 3 D323 C338 0 1uF R320 4K7 R345 100 D309 DAN217 2 1 3 C349 0 1uF C359 10nF D308 DAN217 2 1 3 C345 0 1uF L303 EF 1T2012 050T 1 2 3 C343 0 1uF C356 47pF D311 DAN217 2 1 3 C347 47...

Страница 34: ...uF RN308 47 1 8 2 7 3 6 4 5 R359 10K R397 47 C405 0 1uF R356 47 C383 0 1uF C406 0 1uF R357 47 C382 0 1uF C390 0 1uF C391 220pF R355 10K L306 5 6uH C404 56pF R360 10K C376 22uF 16V L329 STS222B 1 2 3 R...

Страница 35: ...D_3 3 AGND VCLK FSADDR0 FSADDR1 FSADDR2 FSADDR3 FSADDR4 FSADDR5 FSADDR6 FSADDR7 FSADDR8 FSADDR9 FSADDR10 FSADDR11 FSADDR12 FSADDR13 FSCLK FSCKE FSRAS FSCAS FSWE FSDQM0 FSDQM1 DGND DVDD_3 3 DBRED0 DBRE...

Страница 36: ...14 15 26 1 25 7 13 2 49 48 45 43 22 23 24 27 28 29 31 30 32 20 19 16 17 18 34 36 38 44 50 4 10 41 47 35 37 46 DQ2 DQ3 DQ4 DQ5 DQ6 DQ1 DQ7 DQ10 DQ8 DQ9 A0 LDQM WE VSS VCC VCC VCCQ VCCQ DQ0 DQ15 DQ14 D...

Страница 37: ...27 28 30 38 37 TXIN0 TXIN1 TXIN2 TXIN3 TXIN4 TXIN5 TXIN6 TXIN7 TXIN8 TXIN9 TXIN10 TXIN11 TXIN12 TXIN13 TXIN14 TXIN15 TXIN16 TXIN17 TXIN18 TXIN19 TXIN20 TXCLKIN PWRDWN TXOUT0 TXOUT0 TXOUT1 TXOUT1 TXOUT...

Страница 38: ...I327A LM358 2 3 1 4 8 D341 DAN217 3 1 2 P312 DCJACK C535 0 1uF FB330 W4B C534 0 1uF 1 2 C552 0 1uF FB329 HH 1M3216 121JT 1 2 C533 680uF 25V Q308 SST3904 3 2 1 Q309 SST3906 3 2 1 R376 100 FB327 W4B P30...

Страница 39: ...10V 1 2 L326 STS222B 1 2 3 C577 10nF 1 2 C576 0 1uF 1 2 C564 0 1uF 1 2 L319 0GND 1 2 D346 RLS 71 2 1 C562 0 1uF 1 2 C589 0 1uF 1 2 I323 RC1587M33 3 2 1 IN OUT GND C579 0 1uF 1 2 D344 RLS 71 2 1 C566...

Страница 40: ...LITE ON TECHNOLOGY CORP 5 F No 16 Sec 4 Nanking E Road Taipei Taiwan Tel 886 2 25706999 Fax 886 2 25706888 URL www liteontc com tw Printed in Taiwan...

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