AL2002 Service Guide
Page 39
... the video cable is connected normally. (VGA or DVI) OK Proceed to 'Checking the resolution change IC movement' section NG Proceed to 'No OSM display' section NG Input the sync signal of LED is amber.) ACER AL2002W 3 Go to cover page Does OSM display when you press 'MENU' button? It indicates with...
... the video cable is connected normally. (VGA or DVI) OK Proceed to 'Checking the resolution change IC movement' section NG Proceed to 'No OSM display' section NG Input the sync signal of LED is amber.) ACER AL2002W 3 Go to cover page Does OSM display when you press 'MENU' button? It indicates with...
AL2002 Service Guide
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6 ACER AL2002W Go to cover page Appendix 4: Troubleshooting Abnormal Screen: Abnormal screen for VGA source Check the R.G.B video signals from computer input on I306 pin99, pin96, .... 4.FB305, FB307, FB309, FB308, FB306, FB310, R310~R318, C317~C320, C324,C325 is Open 5.R313, R314, R315 is short. OK Proceed 'Checking the resolution changed IC movement' section Failure Point: In the case of video connector Failure Point: NG 1. No R.G.B video signals output from I306? VGA video signal cable disconnected OK...
6 ACER AL2002W Go to cover page Appendix 4: Troubleshooting Abnormal Screen: Abnormal screen for VGA source Check the R.G.B video signals from computer input on I306 pin99, pin96, .... 4.FB305, FB307, FB309, FB308, FB306, FB310, R310~R318, C317~C320, C324,C325 is Open 5.R313, R314, R315 is short. OK Proceed 'Checking the resolution changed IC movement' section Failure Point: In the case of video connector Failure Point: NG 1. No R.G.B video signals output from I306? VGA video signal cable disconnected OK...
AL2002 Service Guide
Page 43
... 1200mV OK Failure Point: In the case of DVI-D video connector Failure Point: NG 1. OK Proceed 'Checking the resolution changed IC movement' section Appendix 4: Troubleshooting Abnormal Screen: Abnormal screen for DVI-D source ACER AL2002W 7 Go to cover page Check the TMDS signal from computer input P303 of the RX2+ signal (A RX1, 0, and...
... 1200mV OK Failure Point: In the case of DVI-D video connector Failure Point: NG 1. OK Proceed 'Checking the resolution changed IC movement' section Appendix 4: Troubleshooting Abnormal Screen: Abnormal screen for DVI-D source ACER AL2002W 7 Go to cover page Check the TMDS signal from computer input P303 of the RX2+ signal (A RX1, 0, and...
AL2002 Service Guide
Page 47
...D306 is short. FB312 and R322 may be short. 4. R332~R335 R338~R341 may be open . 3. OK Proceed 'Checking the resolution change IC movement' section Checking the control circuit of horizontal sync pulse for DVI-D Check the horizontal sync signal on P302 pin14 TTL level Failure Point: NG...and C328 may be open between P302 pin14 and I306 NG pin90. 2. Appendix 4: Troubleshooting Checking the control circuit of vertical sync pulse for DVI-D ACER AL2002W 11 Go to cover page Check the TMDS signal P303 pin1, pin2, pin9, pin10, pin17, pin18, pin23, pin24 OK Check the TMDS...
...D306 is short. FB312 and R322 may be short. 4. R332~R335 R338~R341 may be open . 3. OK Proceed 'Checking the resolution change IC movement' section Checking the control circuit of horizontal sync pulse for DVI-D Check the horizontal sync signal on P302 pin14 TTL level Failure Point: NG...and C328 may be open between P302 pin14 and I306 NG pin90. 2. Appendix 4: Troubleshooting Checking the control circuit of vertical sync pulse for DVI-D ACER AL2002W 11 Go to cover page Check the TMDS signal P303 pin1, pin2, pin9, pin10, pin17, pin18, pin23, pin24 OK Check the TMDS...
AL2002 Service Guide
Page 48
... I306 pin108 NG and pin109 2. Check +3V3 supplied on I309 pin8. OK 1.Check I309 pin8, pin3, pin5, pin6. 2.Check I308 pin5, pin6, pin7, pin8. 12 ACER AL2002W Go to I306 pin108 and pin109 at TTL level OK Check I306 pin111 RSTB signal is open . 3. OK Check X301 14.318MHz clock input...
... I306 pin108 NG and pin109 2. Check +3V3 supplied on I309 pin8. OK 1.Check I309 pin8, pin3, pin5, pin6. 2.Check I308 pin5, pin6, pin7, pin8. 12 ACER AL2002W Go to I306 pin108 and pin109 at TTL level OK Check I306 pin111 RSTB signal is open . 3. OK Check X301 14.318MHz clock input...
AL2002 Service Guide
Page 55
... D810 D810 D811 D812 ZD801 FOR U.S.A. (LITE-ON Part No.) 6412010907P 6412000020P00 6412027820PG0 6413045010P00 6413045020PG0 6414240054P 6412010907P 6414220024P ICS CKD_ID I101 I301 I301 I302 I302 I303 I303 I304 I304 I305 I305 I306 I307 I308 I308 I309 I309 I801 I802 ...22D DO_34_T26 DESCRIPTION IC_LINEAR_OZ9938DN_16_DIP_O2MICRO_ANALOG FET_P-CHNL_AO3419_3P_SOT23_AOS IC_CMOS_AO3401L_3P_SOT23_ALPHA&OMEGA IC_LINEAR_AIC1084_33PM_3P_TO263_AIC IC_LINEAR_AP1084K33LA_3P_TO263_ATC IC-LINEAR-AIC1117-18PETR-3P-TO252-AIC IC_LINEAR_AP1117D18L_3P_TO252_ATC IC_CPU_24LC02BT/SN_8PIN_SOIC_MICROCHIP ...
... D810 D810 D811 D812 ZD801 FOR U.S.A. (LITE-ON Part No.) 6412010907P 6412000020P00 6412027820PG0 6413045010P00 6413045020PG0 6414240054P 6412010907P 6414220024P ICS CKD_ID I101 I301 I301 I302 I302 I303 I303 I304 I304 I305 I305 I306 I307 I308 I308 I309 I309 I801 I802 ...22D DO_34_T26 DESCRIPTION IC_LINEAR_OZ9938DN_16_DIP_O2MICRO_ANALOG FET_P-CHNL_AO3419_3P_SOT23_AOS IC_CMOS_AO3401L_3P_SOT23_ALPHA&OMEGA IC_LINEAR_AIC1084_33PM_3P_TO263_AIC IC_LINEAR_AP1084K33LA_3P_TO263_ATC IC-LINEAR-AIC1117-18PETR-3P-TO252-AIC IC_LINEAR_AP1117D18L_3P_TO252_ATC IC_CPU_24LC02BT/SN_8PIN_SOIC_MICROCHIP ...
AL2002 Service Guide
Page 58
...2U01 1241000400P 2U02 1241000208P 2U03 1241000205P 6LC1 7742005150P0A Y001 7730303229P0A DESCRIPTION FET_N_CHNL_2N7000TA_200mA/60V_F TRANSISTOR_NPN_2SC945P_TO_92_B/ TRANSISTOR_PNP_2SA733P_T0_92_B/ FET_AOP609_8P_DIP_AOS IC-CMOS-AOP607-8P-DIP-AOS FET_AOP609_8P_DIP_AOS IC-CMOS-AOP607-8P-DIP-AOS TRANSISTOR_NPN_PMBS3904_SOT23_PHILIPS TRANSISTOR_NPN_MMBT3904_7_SOT23_DII TRANSISTOR_NPN_LMBT3904LT1G_SOT23_LRC TRANSISTOR_NPN_PMBS3904_SOT23_PHILIPS TRANSISTOR_NPN_MMBT3904_7_SOT23_DII TRANSISTOR_NPN_LMBT3904LT1G_SOT23_LRC TRANSISTOR_NPN_PMBS3904_SOT23_PHILIPS TRANSISTOR_NPN_MMBT3904_7_SOT23_DII...
...2U01 1241000400P 2U02 1241000208P 2U03 1241000205P 6LC1 7742005150P0A Y001 7730303229P0A DESCRIPTION FET_N_CHNL_2N7000TA_200mA/60V_F TRANSISTOR_NPN_2SC945P_TO_92_B/ TRANSISTOR_PNP_2SA733P_T0_92_B/ FET_AOP609_8P_DIP_AOS IC-CMOS-AOP607-8P-DIP-AOS FET_AOP609_8P_DIP_AOS IC-CMOS-AOP607-8P-DIP-AOS TRANSISTOR_NPN_PMBS3904_SOT23_PHILIPS TRANSISTOR_NPN_MMBT3904_7_SOT23_DII TRANSISTOR_NPN_LMBT3904LT1G_SOT23_LRC TRANSISTOR_NPN_PMBS3904_SOT23_PHILIPS TRANSISTOR_NPN_MMBT3904_7_SOT23_DII TRANSISTOR_NPN_LMBT3904LT1G_SOT23_LRC TRANSISTOR_NPN_PMBS3904_SOT23_PHILIPS TRANSISTOR_NPN_MMBT3904_7_SOT23_DII...