AOC L19AS73 Service Manual
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19″ LCD TV AOC L19AS73 16 Remove hinge plate Remove the 7 screws Remove support bkt Remove the 10 screws Remove shield Remove the 7 screws
19″ LCD TV AOC L19AS73 22 4.3 No display (LED indicator green) Check the source OK Reset source NG Check LVDS cable NG Reset LVDS cable OK Check 12V and 5V power supply NG Return to “5.1” OK Check main board power supply OK Check U811 NG Replace U811 OK Check I 2 C communication OK Check panel NG Replace
AOC L19AS73, 19″ LCD TV AOC L19AS73 54 C723 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C721 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C717 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C715 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C411 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C741 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C743 065T040210427T CAP 0402 0.1UF Z 25V Y5V TAIYO YUDEN C744 065T040210
19″ LCD TV AOC L19AS73 53 C417 065T0402103 32 MLCC 0402 10NF K 50V X7R C418 065T0402103 32 MLCC 0402 10NF K 50V X7R C419 065T0402103 32 MLCC 0402 10NF K 50V X7R C421 065T0402103 32 MLCC 0402 10NF K 50V X7R C422 065T0402103 32 MLCC 0402 10NF K 50V X7R C423 065T0402103 32 MLCC 0402
AOC L19AS73, 19″ LCD TV AOC L19AS73 50 R500 061T0603100 CHIP 10OHM 1/16W R501 061T0603100 CHIP 10OHM 1/16W R502 061T0603100 CHIP 10OHM 1/16W R503 061T0603100 CHIP 10OHM 1/16W R504 061T0603100 CHIP 10OHM 1/16W R505 061T0603100 CHIP 10OHM 1/16W R506 061T0603100 CHIP 10OHM 1/16W R507 061T0603100 CHIP 10OHM 1/16W R122 061T0603100 CHIP 10OHM 1/16W R123 061T0603100 CHIP 10OHM 1/16W R126 061T0603100 CHIP 10OHM 1/16W R143 061T0603100 CHIP 10OHM 1/16W R145 061T0603100 CHIP 10OHM
AOC L19AS73, 19″ LCD TV AOC L19AS73 21 4. Repair Flow Chart 4.1 No Power (No LED indicator) 4.2 Can not start (LED indicator yellow) NG Repair the key board OK Check U701,U702 NG Replace U701,U702 OK Check U400 Replace U400 NG Check I 2 C communication Check key board NG Check power cord and board interface Plug in power cord and interface OK Check adapter 12V output NG Replace the adapter OK Check adapter interface NG
AOC L19AS73, 19″ LCD TV AOC L19AS73 17 Remove speaker Remove the 8 screws Remove IR board Remove the 2 screws and connect wire Remove key board Remove the 2 screws Remove pin Remove the 7 connect wire
AOC L19AS73, 19″ LCD TV AOC L19AS73 42 8.2 Power Board ZD905 RLZ22B 1 2 R926 2KΩ 1/8W GND t NR901 NTCR C901 0.001uF/250V R903 680KΩ 1/4W ! ! Q903 STP10NK70ZFP C910 470pF/50V ! NC NC IC903 KIA431A-AT/P C932 0.001uF R913 100KΩ 1% 1/8W ! R909 3.3Ω 1/4W + C904 1000uF/25V R922 1KΩ 1/8W ! D902 FR103 R921 1KΩ 1/8W CN902 1 2 3 4 5 6 7 8 9 10 C915 0.001uF/250V R904 4.7KΩ 1/4W ! C908 0.1uF/50V NC +12V +5V R924 2.4KΩ 1% 1/8W R938 4.7KΩ 1/4W +5V ! C930 0.0015uF/2KV -+ BD901 T4KB80 2 4 3 1 ZD904 RLZ18B 1 2 ADD C938 Y1102 ! +12V C917 0.1uF C903 0.47uF/275V 715T2
AOC L19AS73, 19″ LCD TV AOC L19AS73 57 SW06 077T 600 4 HJ TACT SW TSPB-1L SW05 077T 600 4 HJ TACT SW TSPB-1L SW07 077T 600 4 HJ TACT SW TSPB-1L R02 061T0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R05 061T0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R03 061T0603150 1F RST CHIPR 1.5 KOHM +-1% 1/10W R06 061T0603150 1F RST CHIPR 1.5 KOHM +-1% 1/10W R07 061T0603180 1F RST CHIPR 1.8 KOHM +-1% 1/10W ZD01 093T 39S 34 T UDZSNP5.6B ROHM ZD02 093T 39S 34 T UDZSNP5.6B ROHM 715T2501 1 KEY BOARD PCB PWTV1942FQA2P POWER BOARD T2476-1-X-
AOC L19AS73, 19″ LCD TV AOC L19AS73 15 3. Mechanical Instructions Step Figure Description Preparation Lay the LCD-TV on a flat, soft and clean surface. Remove the stand and base Remove the hinge cover and the 4 screws Remove the back cover Remove the 6 screws.
AOC L19AS73, 19″ LCD TV AOC L19AS73 56 ZD108 093T 64 37 N V-PORT-0603-100K V05 ZD109 093T 64 37 N V-PORT-0603-100K V05 ZD110 093T 64 37 N V-PORT-0603-100K V05 ZD117 093T 64 37 N V-PORT-0603-100K V05 ZD120 093T 64 37 N V-PORT-0603-100K V05 ZD121 093T 64 37 N V-PORT-0603-100K V05 D501 093T 6433S DIODE BAV99 SEMTECH D500 093T 6433S DIODE BAV99 SEMTECH D504 093T 6433S DIODE BAV99 SEMTECH D505 093T 6433S DIODE BAV99 SEMTECH D502 093T 6433S DIODE BAV99 SEMTECH D503 093T 6433S DIODE BAV99 SEMTECH D507 0
AOC L19AS73, 19″ LCD TV AOC L19AS73 51 R447 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R443 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R411 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R410 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R409 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R400 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R194 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R191 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R184 061T0603103 RST CHIPR 10KOHM +-5% 1/10W R16
AOC L19AS73, 19″ LCD TV AOC L19AS73 60 C827 065T0805682 32 CHIP 6.8NF 50V X7R 0805 C818 065T0805682 32 CHIP 6.8NF 50V X7R 0805 C848 065T1206102 72 CHIP 1000PF 500V X7R C847 065T1206102 72 CHIP 1000PF 500V X7R C846 065T1206102 72 CHIP 1000PF 500V X7R C845 065T1206102 72 CHIP 1000PF 500V X7R C932 065T1206102 72 CHIP 1000PF 500V X7R C931 065T1206102 72 CHIP 1000PF 500V X7R C823 065T1206102 72 CHIP 1000PF 500V X7R C822 065T1206102 72 CHIP 1000PF 500V X7R C813 065T1206102 72 CHIP 1000PF 500V X
19″ LCD TV AOC L19AS73 52 R178 061T0603470 RST CHIPR 47 OHM +-5% 1/10W R162 061T0603470 RST CHIPR 47 OHM +-5% 1/10W R161 061T0603470 RST CHIPR 47 OHM +-5% 1/10W R159 061T0603470 RST CHIPR 47 OHM +-5% 1/10W R154 061T0603470 RST CHIPR 47 OHM +-5% 1/10W R153 061T0603470 RST CHIPR 47 OHM +-5% 1
AOC L19AS73, 19″ LCD TV AOC L19AS73 36 5Vst b RXEC-/B5 RXE0-/G3 RXE0-/G3 SDA_EXT AMP-Lout TXCL K+ RXE4+/B0 AUVR EF SV_Y 0 RXO0-/R7 LCK RXE3+/B2 RXE1+/G0 LHSY NC LCK RP400 4.7KΩ 1/ 16W 1 2 3 4 8 7 6 5 PR+ C405 100pF R427 47Ω 1/10W RP402 33Ω 1/16W 1 2 3 4 8 7 6 5 Mstar PULL UP HPDCTRL ON-PBAC K LED1 WP_FSH C416 0.1uF SVID EO-Y in- AUC OM RXO3-/G7 SOY GIN - R407 100Ω 1/10W For TUNER +3. 3V VS_RGB B_TX0+ SCL RXE2-/B7 RXO1-/R5 BIN - AUVR ADP C425 0.1uF CN400 CONN 1 2 3
AOC L19AS73, 19″ LCD TV AOC L19AS73 18 Remove connect wire Remove the 3 connect wire Remove main and power boards Remove the 11 screws Remove bezel Remove the 4 screws
AOC L19AS73, 19″ LCD TV AOC L19AS73 1 Service Service Service TABLE OF CONTENTS Description Page Description Page SAFETY NOTICE ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE
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