Acer A221HQV LCD Monitor Service Guide
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... person attempting to be aware of Contents Important Safety Notice 01 01. Exploded Diagram 12 04. Troubleshooting 21 06. Firmware Upgrade Procedure 58 07. Writing EDID Procedure 60 08. Product Specification 02 02. ACER A211H/A221HQ ACER_LCD_A211H/A221HQ_SM20100512V1 Contents Table of the necessary safety precautions to service this chassis must familiarize with...
... person attempting to be aware of Contents Important Safety Notice 01 01. Exploded Diagram 12 04. Troubleshooting 21 06. Firmware Upgrade Procedure 58 07. Writing EDID Procedure 60 08. Product Specification 02 02. ACER A211H/A221HQ ACER_LCD_A211H/A221HQ_SM20100512V1 Contents Table of the necessary safety precautions to service this chassis must familiarize with...
Acer A221HQV LCD Monitor Service Guide
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2 ACER A211H/A221HQ Go to the interface board, LCD panel and inverter board. Using simply ... RTD2280L used in VGA port. The display elements shall be less than 30 minutes. General display parameters: Display Area Resolution 21.5" diagonal 476.64mm(H)x2 68.11mm(V ) 1920 x 1080 pixels Display Color Number 16.7M colors(6bit Hi FRC) ...DVI&HDMI) Frequency Ranges Max Pixel clock Input Level H 31kHz ~82kHz V 56Hz ~ 75Hz 165MHz 150mV Ambient light should be a 21.5" inch diagonal, UXGA (1920 x1080) resolution TFT-LCD display .Video input signals include D-sub and digital DVI-D , HDMI and DP...
2 ACER A211H/A221HQ Go to the interface board, LCD panel and inverter board. Using simply ... RTD2280L used in VGA port. The display elements shall be less than 30 minutes. General display parameters: Display Area Resolution 21.5" diagonal 476.64mm(H)x2 68.11mm(V ) 1920 x 1080 pixels Display Color Number 16.7M colors(6bit Hi FRC) ...DVI&HDMI) Frequency Ranges Max Pixel clock Input Level H 31kHz ~82kHz V 56Hz ~ 75Hz 165MHz 150mV Ambient light should be a 21.5" inch diagonal, UXGA (1920 x1080) resolution TFT-LCD display .Video input signals include D-sub and digital DVI-D , HDMI and DP...
Acer A221HQV LCD Monitor Service Guide
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...+ Positive LVDS differential data input(Odd Data) Negative LVDS differential data input(Odd Data, 5 RXOIN2- Negative Sampling clock input(Even clock) 21 RXECLK+ Positive Sampling clock input(Even clock) 22 RXEIN3- DSPTMG) Positive LVDS differential data input(Odd Data, 6 RXOIN2+ DSPTMG) 7...RXOIN0+ Positive LVDS differential data input(Odd Data) 3 RXOIN1- Do not connect) 26 NC No connection(For AUO test only. Product Specification (continued) ACER A211H/A221HQ 3 Go to mains power. DVI-D (Digital TMDS) Connector Pin Si gnal Pin Signal 1 TMDS Data 2- 13 NC 2 TMDS Data...
...+ Positive LVDS differential data input(Odd Data) Negative LVDS differential data input(Odd Data, 5 RXOIN2- Negative Sampling clock input(Even clock) 21 RXECLK+ Positive Sampling clock input(Even clock) 22 RXEIN3- DSPTMG) Positive LVDS differential data input(Odd Data, 6 RXOIN2+ DSPTMG) 7...RXOIN0+ Positive LVDS differential data input(Odd Data) 3 RXOIN1- Do not connect) 26 NC No connection(For AUO test only. Product Specification (continued) ACER A211H/A221HQ 3 Go to mains power. DVI-D (Digital TMDS) Connector Pin Si gnal Pin Signal 1 TMDS Data 2- 13 NC 2 TMDS Data...
Acer A221HQV LCD Monitor Service Guide
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6 ACER A211H/A221HQ Go to the panel. Product Specification (continued) DVI digital signal to contents page 1. The controller will include a PLL, A/D converters, TMDS receiver and other ... by the DC - The UPS power supply shall operate and comply with a 3H hardness value. 1.4.4 Backlight Requirements: The backlight assembly shall be a Full HD resolution 21.5" diagonal TFT-LCD. 1.4.2 Panel Timings: The controller in the monitor shall translate video timings from the PC, so that conforms to ensure a stable image. 1.3.5.2 Video...
6 ACER A211H/A221HQ Go to the panel. Product Specification (continued) DVI digital signal to contents page 1. The controller will include a PLL, A/D converters, TMDS receiver and other ... by the DC - The UPS power supply shall operate and comply with a 3H hardness value. 1.4.4 Backlight Requirements: The backlight assembly shall be a Full HD resolution 21.5" diagonal TFT-LCD. 1.4.2 Panel Timings: The controller in the monitor shall translate video timings from the PC, so that conforms to ensure a stable image. 1.3.5.2 Video...
Acer A221HQV LCD Monitor Service Guide
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... signal from computer is output and if the video cable is amber): ACER A211H/A221HQ 21 Go to contents page Does OSM display when you push "MENU key. 5. OK NG Proceed "checking the resolution change the cable. Troubleshooting 5.1 Troubleshooting for Acer A211H/A221HQ(1A1D1H): 5.1.1 No display on the screen (Screen is indicated with...
... signal from computer is output and if the video cable is amber): ACER A211H/A221HQ 21 Go to contents page Does OSM display when you push "MENU key. 5. OK NG Proceed "checking the resolution change the cable. Troubleshooting 5.1 Troubleshooting for Acer A211H/A221HQ(1A1D1H): 5.1.1 No display on the screen (Screen is indicated with...
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Troubleshooting (continued) 5.2.4 Abnormal screen 5.2.4.1 Abnormal screen for VGA source Check the R, G, B video signal from computer input on I310 pin 21, 22 respectively that their level is failure. Failure Point NG 1) No R, G, B video signals output from I310? OK Check all LVDS signals... is failure. 3) L303, R313, R314 are short. 5) Video cable is 0.5 to contents page 5. Failure Point NG 1) Printed wire broke between I306 and P302. 38 ACER A211H/A221HQ Go to 1.0 Vp-p. NG 2) L306, R327, R328 are open. 3) R329, R330 if is 2.2K ohm. 4) D305, D306, C330, C331 are open...
Troubleshooting (continued) 5.2.4 Abnormal screen 5.2.4.1 Abnormal screen for VGA source Check the R, G, B video signal from computer input on I310 pin 21, 22 respectively that their level is failure. Failure Point NG 1) No R, G, B video signals output from I310? OK Check all LVDS signals... is failure. 3) L303, R313, R314 are short. 5) Video cable is 0.5 to contents page 5. Failure Point NG 1) Printed wire broke between I306 and P302. 38 ACER A211H/A221HQ Go to 1.0 Vp-p. NG 2) L306, R327, R328 are open. 3) R329, R330 if is 2.2K ohm. 4) D305, D306, C330, C331 are open...
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... 5.2.7.2 Checking the control circuit of horizontal sync pluse: ACER A211H/A221HQ 43 Go to contents page Check the horizontal sync signal on I310 pin 22 TTL level. Failure Point 1) Printed wire broke between CN302 NG pin 14 and I310 pin 21. 2) R328 is open . 3) R330 or C331... Checking the interface circuit of sync signal: 5.2.7.1 Checking the control circuit of vertical sync pluse: Check the vertical sync signal on I310 pin 21 TTL level. OK Failure Point Process "Checking the resolution change IC movement" section. OK Check the horizontal sync signal on CN302 pin 13 TTL...
... 5.2.7.2 Checking the control circuit of horizontal sync pluse: ACER A211H/A221HQ 43 Go to contents page Check the horizontal sync signal on I310 pin 22 TTL level. Failure Point 1) Printed wire broke between CN302 NG pin 14 and I310 pin 21. 2) R328 is open . 3) R330 or C331... Checking the interface circuit of sync signal: 5.2.7.1 Checking the control circuit of vertical sync pluse: Check the vertical sync signal on I310 pin 21 TTL level. OK Failure Point Process "Checking the resolution change IC movement" section. OK Check the horizontal sync signal on CN302 pin 13 TTL...
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.... 2) I304 failure. OK Check X301 14.318MHz clock input to low level, it is 3~10ms high level, when VCC5V is failure. OK Check I306 pin 21~24 SPI Flash ROM interface signal. Failure Point NG 1) Printed wire broke between I306 pin 54 and C383/R337. 3) R337, C383 is short or open... . 3) X301 is turned on. 54 ACER A211H/A221HQ Go to contents page 5. OK Check +1.2V supply on I306 pin 51, 6 Proceed " Checking the DC/DC converter NG circuit" section. OK Failure...
.... 2) I304 failure. OK Check X301 14.318MHz clock input to low level, it is 3~10ms high level, when VCC5V is failure. OK Check I306 pin 21~24 SPI Flash ROM interface signal. Failure Point NG 1) Printed wire broke between I306 pin 54 and C383/R337. 3) R337, C383 is short or open... . 3) X301 is turned on. 54 ACER A211H/A221HQ Go to contents page 5. OK Check +1.2V supply on I306 pin 51, 6 Proceed " Checking the DC/DC converter NG circuit" section. OK Failure...
Acer A221HQV LCD Monitor Service Guide
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L9141-1 A B C D E F G ACER A211H/A221HQ 69 Go to contents page RX0N RX0P RX1N RX1P RX2N RX2P RXCP RXCN RTD_V RTD_H RTD_BRTD_B+ RTD_GRTD_G+ SOG RTD_RRTD_R+ C356 0.1uF_16V CM0402 ADC_1V2 .../TMDS_GND 13 LANE0P/RX2P_1 14 LANE0N/RX2N_1 15 LANE1P/RX1P_1 16 LANE1N/RX1N_1 17 LANE2P/RX0P_1 18 LANE2N/RX0N_1 19 LANE3P/RXCP_1 20 LANE3N/RXCN_1 21 DP_VDD/TMDS_VDD2 22 AVS0 23 AHS0 24 ADC_VDD 25 B026 B0+ 27 G028 G0+ 29 SOG0 30 R031 R0+ 32 GPI/B1- / V8_7 33 GPI...
L9141-1 A B C D E F G ACER A211H/A221HQ 69 Go to contents page RX0N RX0P RX1N RX1P RX2N RX2P RXCP RXCN RTD_V RTD_H RTD_BRTD_B+ RTD_GRTD_G+ SOG RTD_RRTD_R+ C356 0.1uF_16V CM0402 ADC_1V2 .../TMDS_GND 13 LANE0P/RX2P_1 14 LANE0N/RX2N_1 15 LANE1P/RX1P_1 16 LANE1N/RX1N_1 17 LANE2P/RX0P_1 18 LANE2N/RX0N_1 19 LANE3P/RXCP_1 20 LANE3N/RXCN_1 21 DP_VDD/TMDS_VDD2 22 AVS0 23 AHS0 24 ADC_VDD 25 B026 B0+ 27 G028 G0+ 29 SOG0 30 R031 R0+ 32 GPI/B1- / V8_7 33 GPI...
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... 27 LVBCKM LVBCKP LVB3M LVBCKM LVBCKP LVB3M LVB2M 26 LVB2P 25 24 LVB3P LVB3P LVBCKM 23 LVBCKP 22 LVA0M LVA0P LVA1M LVA0M LVA0P LVA1M LVB3M 21 LVB3P 20 LVA0M 19 LVA1P LVA1P LVA0P 18 17 B LVA2M LVA2M LVA2P LVA2P P310 LVA1M 16 B LVA1P 15 POWER1 1 POWER 14 LVACKM LVACKM ORANGE_LED1 2 ORANGE... R364 4K7_5% R0402 10K_5% R0402 MMBT3906 SM-PNP 0.1uF_16V CM0402 LED_1 LED_2 KEY2_SCL KEY1_SDA LED_1 LED_2 KEY2_SCL KEY1_SDA 1 2 3 4 5 6 7 8 9 10 11 12 13 PCB No. L9141-1 ACER A211H/A221HQ 70 Go to contents page
... 27 LVBCKM LVBCKP LVB3M LVBCKM LVBCKP LVB3M LVB2M 26 LVB2P 25 24 LVB3P LVB3P LVBCKM 23 LVBCKP 22 LVA0M LVA0P LVA1M LVA0M LVA0P LVA1M LVB3M 21 LVB3P 20 LVA0M 19 LVA1P LVA1P LVA0P 18 17 B LVA2M LVA2M LVA2P LVA2P P310 LVA1M 16 B LVA1P 15 POWER1 1 POWER 14 LVACKM LVACKM ORANGE_LED1 2 ORANGE... R364 4K7_5% R0402 10K_5% R0402 MMBT3906 SM-PNP 0.1uF_16V CM0402 LED_1 LED_2 KEY2_SCL KEY1_SDA LED_1 LED_2 KEY2_SCL KEY1_SDA 1 2 3 4 5 6 7 8 9 10 11 12 13 PCB No. L9141-1 ACER A211H/A221HQ 70 Go to contents page
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... C311 R305 10KR2J-3-GP 100KR2J-1-GP C312 SCD1U16V2ZY-2GP G C313 SCD1U16V2ZY-2GP C314 SCD1U16V2ZY-2GP E E100U16VM-58-GP 2 R307 2 2 2 2 E 1 2 P5V 3 1 R308 4K7R2J-2-GP 5 PANELVCC_EN R309 1 21 4K7R2J-2-GP Q301 MMBT3904-7-F-GP 2 1 R390 2 F AUDIO_EN_CTRL 1 R310 2 100R2J-2-GP AUDIO_EN 5 100KR2J-1-GP F 2 GEN246R158-8-F-A P5V M301 1 2 3 R311 4K7R2J-2-GP 4 1 2 5 8 G VOLUME_CTRL 1 R312 2 10KR2J-3-GP VOLUME 5 G 7 6 1 C315...
... C311 R305 10KR2J-3-GP 100KR2J-1-GP C312 SCD1U16V2ZY-2GP G C313 SCD1U16V2ZY-2GP C314 SCD1U16V2ZY-2GP E E100U16VM-58-GP 2 R307 2 2 2 2 E 1 2 P5V 3 1 R308 4K7R2J-2-GP 5 PANELVCC_EN R309 1 21 4K7R2J-2-GP Q301 MMBT3904-7-F-GP 2 1 R390 2 F AUDIO_EN_CTRL 1 R310 2 100R2J-2-GP AUDIO_EN 5 100KR2J-1-GP F 2 GEN246R158-8-F-A P5V M301 1 2 3 R311 4K7R2J-2-GP 4 1 2 5 8 G VOLUME_CTRL 1 R312 2 10KR2J-3-GP VOLUME 5 G 7 6 1 C315...
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...7 8 9 10 11 12 13 PCB No. GP 2 10KR2J -3- GP P3P3V 2,3,4,6 P5V P5V Q313 MMBT3906-4-GP E C R394 1 21KR2J -1- L9137-1M ACER A211H/A221HQ 75 Go to contents page GP-U 2 2 P3P3V V33TMDS L309 1 2 PBY160808T-301Y-N-GP C350 SC10U 6D3 V5MX-3GP C351 SCD1U16V2ZY-2GP 2 1 2... 2 P1P2V V12C C352 SCD1U16V2ZY-2GP L310 1 2 PBY160808T-301Y-N-GP C382 SC10U 6D3 V5MX-3GP 1 1 1 C353 SCD1U16V2ZY-2GP C354 SCD1U16V2ZY-2GP 21 21 21 2 2 2 P3P3V L311 1 2 PBY160808T-301Y-N-GP 1 V33SDRAM C356 SCD1U16V2ZY-2GP 1 C357 SCD1U16V2ZY-2GP 2 2 LED_AMBER 6 2 1 C355...
...7 8 9 10 11 12 13 PCB No. GP 2 10KR2J -3- GP P3P3V 2,3,4,6 P5V P5V Q313 MMBT3906-4-GP E C R394 1 21KR2J -1- L9137-1M ACER A211H/A221HQ 75 Go to contents page GP-U 2 2 P3P3V V33TMDS L309 1 2 PBY160808T-301Y-N-GP C350 SC10U 6D3 V5MX-3GP C351 SCD1U16V2ZY-2GP 2 1 2... 2 P1P2V V12C C352 SCD1U16V2ZY-2GP L310 1 2 PBY160808T-301Y-N-GP C382 SC10U 6D3 V5MX-3GP 1 1 1 C353 SCD1U16V2ZY-2GP C354 SCD1U16V2ZY-2GP 21 21 21 2 2 2 P3P3V L311 1 2 PBY160808T-301Y-N-GP 1 V33SDRAM C356 SCD1U16V2ZY-2GP 1 C357 SCD1U16V2ZY-2GP 2 2 LED_AMBER 6 2 1 C355...
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L9142-1M ACER A211H/A221HQ 78 Go to contents page 8.3.3.2 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_POWER: 1 2 3 4 5 6 7 ...E100U16VM-58-GP 10KR2J-3-GP 100KR2J-1-GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP 2 R307 2 2 2 E 2 1 2 1 3 R308 R309 AUDIO_EN_CTRL 2 4K7R2J-2-GP 1 R310 2 100R2J-2-GP AUDIO_EN 4 4 PANELVCC_EN 1 R338 1 21 4K7R2J-2-GP 2 Q303 MMBT3904-7-F-GP F 100KR2J-1-GP F P5V 2 GEN246R158-8-F-A 1 R311 M301 2 3 4K7R2J-2-GP 2 4 1 VOLUME_CTRL 1 R312 2 10KR2J-3-GP VOLUME 4 5 8 G 1 G C312 SC1U16V3KX-5GP 7 6 2...
L9142-1M ACER A211H/A221HQ 78 Go to contents page 8.3.3.2 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_POWER: 1 2 3 4 5 6 7 ...E100U16VM-58-GP 10KR2J-3-GP 100KR2J-1-GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP SCD1U16V2ZY-2GP 2 R307 2 2 2 E 2 1 2 1 3 R308 R309 AUDIO_EN_CTRL 2 4K7R2J-2-GP 1 R310 2 100R2J-2-GP AUDIO_EN 4 4 PANELVCC_EN 1 R338 1 21 4K7R2J-2-GP 2 Q303 MMBT3904-7-F-GP F 100KR2J-1-GP F P5V 2 GEN246R158-8-F-A 1 R311 M301 2 3 4K7R2J-2-GP 2 4 1 VOLUME_CTRL 1 R312 2 10KR2J-3-GP VOLUME 4 5 8 G 1 G C312 SC1U16V3KX-5GP 7 6 2...
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L9142-1M ACER A211H/A221HQ 81 Go to contents page 8.3.3.5 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_PANEL INTERFACE&KEY: 1 2 3 4 5 6 7 8 9 10 11 12 13 A 4 LV_A[0..7] LV_A[0..7] LV_A0 LV_A1 LVA3P LVA3M LV_A2 ... 25 LVB1P 27 LVB2M 26 LVB2P 25 L311 (NC)PBY160808T-301Y-N-GP 24 24 LVBCKM 23 LVBCKM 23 LVBCKP 22 LVBCKP 22 E LVB3M 21 LVB3P 20 LVB3M 21 LVB3P 20 LVA0M 19 LVA0M 19 LVA0P 18 LVA0P 18 17 LVA1M 16 17 LVA1M 16 LVA1P 15 LVA1P 15 14 14 LVA2M 13...
L9142-1M ACER A211H/A221HQ 81 Go to contents page 8.3.3.5 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_PANEL INTERFACE&KEY: 1 2 3 4 5 6 7 8 9 10 11 12 13 A 4 LV_A[0..7] LV_A[0..7] LV_A0 LV_A1 LVA3P LVA3M LV_A2 ... 25 LVB1P 27 LVB2M 26 LVB2P 25 L311 (NC)PBY160808T-301Y-N-GP 24 24 LVBCKM 23 LVBCKM 23 LVBCKP 22 LVBCKP 22 E LVB3M 21 LVB3P 20 LVB3M 21 LVB3P 20 LVA0M 19 LVA0M 19 LVA0P 18 LVA0P 18 17 LVA1M 16 17 LVA1M 16 LVA1P 15 LVA1P 15 14 14 LVA2M 13...