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Service Manual 15-inch LCD Monitor H15AAX...
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This manual may not, in whole or in part, be respective owners. copied, photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of LiteOn Technology Corp. H15AAX (AL502) Service Manual. Printed in Taiwan.
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H15AAX (AL502) 1. Audio circuit (Circuit diagrams Main PWB) Audio input The audio signal input received from the audio input terminal (JK011) is applied to the amplifier I001 of 4 (L- CH) and 9 (R-CH) through the low-pass filter consisting of R040, R041, R042, R043, C040 and C041.
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H1 5 A AX ( AL 5 0 2 ) 2 . 7. 4 OVP : If + 5V goes up t o o m uch, t he i n du ced vo l t age on p i n 4 o f T80 2 beco m es l arge al s o . S uppos e t h at i t i s over 18 vo l t s , ZD8 01 co n du ct s , p i n 3 o f I8 0 1 i s pu l l ed up ov er 1 vol t .
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H15AAX (AL502) 8. E PROM (Circuit diagram MAIN PWB) Dat a t rans f er b et w een I3 0 4 an d C P U (C i rcu i t d i ag ram M AIN P W B page 4 / 7 (I3 03) i s effect ed t hro u g h t he IIC bu s S C L (pi n 9 ) an d SDA (pi n 8) of I3 00 o r S C L (pi n 4 2 ) an d SDA pi n 3 9 of I30 1 .
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H1 5 A AX ( AL 5 0 2 ) Table 1 Mode Resolution H-freq Band Width Polarity (KHz) (MHz) VGA 720 x 350 70Hz 31.47 28.322 VGA 720 x 400 70Hz 31.47 28.322 VGA 640 x 480 60Hz 31.47 25.175 MAC 640 x 480 66Hz 32.24...
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H15AAX (AL502) 9. 3. 2 F un ct i o n s C ont rol i s effect ed fo r t h e pu s h -s wi t ches t o be u s ed when t he us er ch anges t h e param et ers , i n order t o m odi fy t he res pec t i ve s et t i n g v al u es .
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H1 5 A AX ( AL 5 0 2 ) 9 . 6 P o we r ON s eq u e n c e When t he P OWER s wi t ch i s p res s ed , t h e P OWER OF F s i g nal i s t urned “H”. When t hi s “H” pot ent i al i s det ect ed , t he C P U b egi ns t o es t ab l i s h t he res p e ct i v e p ower s up pl i es a cco rdi n g t o t h e s eq u e nce s hown bel o w.
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H15AAX (AL502) Power OFF seq uence When the POWER switch is pressed while the power supply is ON, the POWER ON signal is turned “H”. When tshown below.his “H” potential is detected, the CPU begins to turn off the respective power supplies according...
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H15AAX (AL502) Inverter This unit operates on an output voltage of 15V from power source. 10.1 Regulator: Q101 get a +5VDC for I102 power supply. 10.2 UVP: Q106 turns off when the Vin is under 14V. Then pin 3 of I102 is pulled low and inverter off immediately.
H15AAX (AL502) Table of Contents No display of screen (Screen is black, color of LED is amber) ------------------------------------------------------------ 1 Nothing displays on screen (Screen is black, color of LED is green) ---------------------------------------------------- 2 Checking the back light unit -------------------------------------------------------------------------------------------------------- 5...
H15AAX (AL502) 1. No display of screen (Screen is black, color of LED is amber) Does OSD display when you push key button. When a signal isn't being inputted, it is indicated with "VIDEO INPUT". It is indicated Proceed "No OSD display"section.
H15AAX (AL502) 2. Nothing displays on screen (Screen is black, color of LED is green) Is backlight lit? Refer "Checking the backlight unit" section Check the video cable for failure. Check the host for Does computer output RGB video signals? output signal with all black only.
H15AAX (AL502) Continue Check the 3.3 V power are supplied on I308 pin 2. Check if the voltage on I308 pin3 that is high level DC at 5V. Failure point 1) Printed wire broke between P301 and I308 Failure point...
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H15AAX (AL502) Continue Check the data enable of positive polarity are output on P303 pin 42. Failure point 1) I300 failure. 2) Printed wire broke between I300 and P303 pin 42. Check the data signal output on P306 and P303 R, G, B data pin.
H15AAX (AL502) 3. Checking the back light unit Is +15V supplied to P803 pin 3, 4 to inverter PWB? Failure point Inverter cable disconnection. Check the INV_EN signal of the rectangle input I307 pin 5 at TTL high level Is a "H" level being output in the TTL level from I300 pin 143...
H15AAX (AL502) 4. Abnormal screen Check the R, G, B video signal from computer input on D-Sub R, G, B connector. Failure point 1) No R, G and B video signal output from host computer. Check computer 2) Video signal cable disconnection.
H15AAX (AL502) 5. NO OSD display Check the input of pulse from I300 pin 5, 6. Failure point 1) Printed wire broke between I306 pin 5 and I303 pin 9. 2) Printed wire broke between I306 pin 6 and I303 pin 8.
H15AAX (AL502) 6. Abnormal plug and play operation 6.1 Abnormal DDC2 Confirm the input of serial data on I305 pin 6 synchronize SCLK at TTL level. Failure point I305 failure. Failure point 1) The host machine isn't communicating in DDC2 mode.
H15AAX (AL502) 7. Checking the interface circuit of sync signal 7.1 Checking the control circuit of horizontal sync pulse Check the horizontal sync signal on I301 pin 94 TTL level. Failure point 1) Video cable may have failed. 2) Printed wire broke between P302 pin 13...
H1 5 A AX ( AL 5 0 2 ) 8. C hec k in g t he res olut ion c h ange I C mov e ment Is there +3.3V supply on I300 pin 17, 21, 57, 77, 79, 97, 102, 117, 137, 154, 156, 157 and 65. Proceed "Checking the DC/DC converter circuit"...
H1 5 A AX ( AL 5 0 2 ) 9. No p ower on 9 .1 No p o w e r on (I) Check output voltage +5V, +15V is right or not. It is not power board problem. Check power switch is turn on or not.
H1 5 A AX ( AL 5 0 2 ) 9 .2 No p o w e r o n (II) Check the + 5V power is supplied from power source. Failure point Power source failure. Is LED turned on in amber momentarily when a power button is pushed? Failure point...
H1 5 A AX ( AL 5 0 2 ) 10. Chec k ing t he DC/ DC c onv e rt er c ir c uit Check the output of 3.3V line voltage from I308 pin 2. Is the output FB321 being inputted to I308 pin 3? Failure point Printed wire broke between I308...
H1 5 A AX ( AL 5 0 2 ) 11. Chec k i ng t he operat ion of CP U Is there +5.0V supply on I303 pin 44 Failure point Printed wire broke between output of FB320 and I300 power supply pin. Is 12MHz clock input to I303 pin 21 and 20 at TTL level? Failure point...
H1 5 A AX ( AL 5 0 2 ) 12. Chec k ing t he audio c irc uit Is a cable with the host PC connected? Failure point Audio cable disconntction. Aren't the setups of the host PC a minimum and off? Failure point The setup of the host PC is changed.
H1 5 A AX ( AL 5 0 2 ) 13. Ch ec k ing inv er t er board c irc uit Check Vin pin is around 15.5V. On/off pin is over 2V. Brightness pin is between 0V and 3.7V. It is not inverter problem.
H15AAX (AL502) 1. Recommended Parts List Note: 1. The components identified by “ “ mark are critical for X-ray safety. Replace these with only the same parts specified. The components identified by “ * “ mark are critical parts. There is only OTP IC at the model beginning (FPR stage or before). When it put in mass production and there must be Mask coming out.
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5114300006 Desc:CONTROL BD-POWER BD-H15AAU(9)-=-E-1-(K)- Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:22 Org:RD Page: 1 OF 2 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ---- 1 02U04 Yes 10 1241000200...
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2 CN102 Yes 10 6610020010 CONNECTOR----SM02(8.0)B-BHS-1- EA 1 2 CN103 Yes 10 6610020010 CONNECTOR----SM02(8.0)B-BHS-1- EA 1 2 CR101 Yes 10 6412019508 DIODE--DAN217 SMD3 T146----ROH EA 1 2 CR102 Yes 10 6412019508 DIODE--DAN217 SMD3 T146----ROH EA 1 2 CR103 Yes 10 6412019508 DIODE--DAN217 SMD3 T146----ROH EA 1 2 CR104...
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OIL HOUSE-SOLDER BAR ADEPTO S6 l .002 1 I001M No 10 7746402571-0A HEAT SINK--GC150ATA-AL-CLEAN 8440003873 EA 1 1 I303A No 10 9083000199-05 F/W-H15AAC-M105-CAREFOUR/ACER EA 1 1 00000 No 10 5213300027 SMT-INTERFACE BD-H15AAC-=-E-2- EA 1.0000000 NO 2 0C002 YES 10 6373410486 CAP.
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2 FB322 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 2 FB323 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 2 FB324 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 2 FB325 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 2 FB326 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 2 FB328 YES 10 6881601378 CORE-BEAD-SBK160808T-600Y-S--C...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5114100024 Desc:CONTROL BD-AUDIO JACK BD-H15AAU(9)-=-E-1 Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:22 Org:RD Page: 1 OF 1 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ---- 1 02U01 Yes 10 1241000200...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113800008 Desc:FUNCTION KEY BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:18 Org:RD Page: 1 OF 1 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- ---------------...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113200019 Desc:INVERTER BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:20 Org:RD Page: 1 OF 1 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ----...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113300028 Desc:INTERFACE BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 1 OF 6 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ----...
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2 0C309 YES 10 6373410486 CAP. MC-uF-0.1-25V-Z-Y5V-SMD-0 EA 1.00000 NO LITE-ON TECHONLOG COR XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113300028 Desc:INTERFACE BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 2 OF 6 Lvl CKTID G1 Apr OP Item No...
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2 0C372 Yes 10 6371110156 CAP. MC-pF-100-50V-J-NPO-SMD 0 EA 1 LITE-ON TECHONLOG COR XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113300028 Desc:INTERFACE BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 3 OF 6 Lvl CKTID G1 Apr OP Item No...
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2 0D316 Yes 10 6412019508 DIODE--DAN217 SMD3 T146----ROH EA 1 LITE-ON TECHONLOG COR XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113300028 Desc:INTERFACE BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 4 OF 6 Lvl CKTID G1 Apr OP Item No...
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2 0R332 YES 10 6252100156 RES. CHIP-R-KOHM-1-1/10W-J-603 EA 1.00000 NO LITE-ON TECHONLOG COR XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113300028 Desc:INTERFACE BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 5 OF 6 Lvl CKTID G1 Apr OP Item No...
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2 FB314 Yes 10 6881102068 CORE-BEAD-FCM2012 C-501T03-SMD EA 1 LITE-ON TECHONLOG COR XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113300028 Desc:INTERFACE BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 6 OF 6 Lvl CKTID G1 Apr OP Item No...
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2 FB322 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB323 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB324 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB325 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB326 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB328...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5113800008 Desc:FUNCTION KEY BD-H15AAR(9)-=-U-4-(C)-ACER Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:18 Org:RD Page: 1 OF 1 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ----...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5114300006 Desc:CONTROL BD-POWER BD-H15AAU(9)-=-E-1-(K)- Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:19 Org:RD Page: 1 OF 2 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ---- 1 02U04 Yes 10 1241000200 LABEL-DATE CODE-----...
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2 0R352 Yes 10 6252330956 RES. CHIP-R-OHM-33-1/10W-J-060 EA 1.00000 NO 2 0R353 Yes 10 6252015056 RES. CHIP-R-OHM-15-1/10W-J-SMD EA 1 2 0R354 Yes 10 6252015056 RES. CHIP-R-OHM-15-1/10W-J-SMD EA 1 2 0R355 Yes 10 6252330956 RES. CHIP-R-OHM-33-1/10W-J-060 EA 1.00000 NO 2 0R356 Yes 10 6252100356 RES.
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2 FB321 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB322 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB323 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB324 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB325 Yes 10 6881100406 CORE-BEAD-WB201209B300QS--WLSN EA 1.00000 NO 2 FB326...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5114100024 Desc:CONTROL BD-AUDIO JACK BD-H15AAU(9)-=-E-1 Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:21 Org:RD Page: 1 OF 1 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ---- 1 02U01 Yes 10 1241000200 LABEL-DATE CODE-----...
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LITE-ON TECHONLOG CORP XXBOMR1001 BOM LIST BY CKT-ID Block Number:5114300006 Desc:CONTROL BD-POWER BD-H15AAU(9)-=-E-1-(K)- Plan_Level: Category From: Approve:Both Report Date:29-APR-2002 15:21 Org:RD Page: 1 OF 2 Lvl CKTID G1 Apr OP Item No Description Drqwing No Uom Quantity SFty --- ----- --- --- --- --------------- ----------------------------- ---------- --- ---------- ---- 1 02U04 Yes 10 1241000200 LABEL-DATE CODE-----...
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