AOC 919swa Service Manual
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19 LCD Color Monitor AOC 919Swa
21
7.2 Power Board
R 821
1M 1/10W 5%
R816
10K 1/ 10W 1%
C 807
1uF
D 801 LL4148
R805
100R 1/ 10W 5%
R8245K 1 1/10W
R830
NC
OEM MOD EL
SizeRev
Date
Sheet
of
TPV MOD EL
PC B NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )Key Component絬 隔 瓜 絪 腹
PW PC 9941LH D 1 2Custom
24 Monday , J une 29, 2009715G2824-2
OD M MOD EL 02.Inv erterG2824-2-X-X-4-090627919Swa
R828
6. 2M OH M 1/ 2W
C808
180K 1/ 10W
CN80112
Q801
PMBS3904
L801
L12
43
R819
100K 1/ 10W 5%
R850
NC
C820
68pF / 3KVC 821
68pF 3KVC 822
68pF 3KVC819
68pF / 3KV
D806
BAV703
12
C804
2.2uF/16V
C818
220pF
R 813
470K 1/ 10W 5%
L802
L12
43
Q803
R K7002
C805
10N
R829
6K8 1/ 8W
CN80212
Q805
AM4502C -T1-PFS 1G 2S 3G 4
D8D7D6D5
R837
8K2 1/ 10WR836
62K 1/ 10W 5%
CN80312
R815
NC
C803
NC
R814
NC
CN80412
R 838 1M 1/ 10W 5%
R842
10K 1/ 10W 5%
R822
20K OH M 1% 1/ 8W
C 813
33N F 25V
R 807 100R 1/ 10W 5%
LV1
LV2
LV3
LV4
LV1LV3LV2LV4
R827NC
Q804
NCC823
NCR 846 RST CHIP MAX 0R05 1/10W
D 802 LL4148
D 803 LL4148D 804 LL4148
R801
2. 4K OHM 1/ 10W
D809
BAV99
3
1
2
C 801
0. 047uF
C802
0. 047uF
R803
5K1 1/ 8W
R 806 100R 1/ 8WR 804 5K1 1/8WR 808 100R 1/ 8W
PT801
POWER XFMR
5
9
1
8
26
R825550OHM 1/10W
IC801
OZ 9938GNDRV1 1VD DA 2TI ME R 3DIM 4I SEN 5VSEN 6OVPT 7NC1 8
NC29EN A10LC T11
SSTCMP12
CT13GND A14DRV215PGND16
C811
0. 1uF+C 812
1000uF 25V
R818
100K 1/ 10W 5%
R843
10K 1/ 10W 5%
R845
10K 1/ 10W 5%
R844
10K 1/ 10W 5%
R 817
1M 1/ 10W 5%
ZD802
RLZ5.6B12
+16VON/ OF FDIM
ZD803
RLZ5.6B12
R802
22R 1/ 8W
PI D
C 806
1uF / 16V
Q806
AM4502C -T1-PFS 1G 2S 3G 4
D8D7D6D5
R847NC
ZD801
RLZ5.6B12
D 805
LL4148
CTSST
C816
22pF / 6KV
R 823
390R 1/ 10W 1%
R 820
20K 1/ 10W 5%
D807
BAV703
12
R849 R ST C H I P MAX 0R 05 1/ 10W
C814
390P 50VCT
SST
R 826
1M 1/10W 5%C 815
0. 047uF
C 817
2PF / 6KVC824
22pF / 6KV
D808
BAV703
12
R848NC
Q802
R K7002
R 840 1M 1/ 10W 5%R 839 1M 1/ 10W 5%R 841 1M 1/ 10W 5%
C809
560pF 50V
C 810
0. 047uF
19 LCD Color Monitor AOC 919Swa
22
ZD921
R LZ 22B12
R903
100K O HM 2W
L904
LL903
L
F B903
BEAD1
2
L905
L
O E M MO D EL
SizeRev
Date
Sheet
of
TP V MO D E L
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )Key Component絬 隔 瓜 絪 腹
PW PC 9941LH D 1 2Custom
34 Monday , J une 29, 2009715G2824-2
O D M MO D E L 03. Adapt erG2824-2-X-X-4-090627919Swa
+16V+5V
C921
NC
-+
BD 901
GBU 408
2
1
3
4
VOL
C912
0. 001uF
R962 100 OHM 1/4W
+C 905
120uF / 450V
R920 100 OHM 1/4W
+5V1
IC901
LD 7552D PSGN D 1COMP 2VC C 3RT 4
NC5CS6VCC7OU T8
!
ZD902
RLZ18B
MU TE
+C908
22uF / 50V
R938
10K 1/8W
! !
FB90280OHM1
2C 909
470pF / 25VR910
10R 1/4W
R939
1K 1/8W
!
C 901
1000PF/ 250VAC
!
R909
5.1 O HM 1/4W
!
!
C903
0. 47uF / 275V
C 920
1000pF 250V
NR901
NTCR
C 928
1000pF
!
D 908
FC Q10U 06
1
2
3
C 907
0. 1uF
F901
FUSE
!
CN901
SOCKET
1
2
3
R904
300K OHM 1/4W
R943
470R 1/8W
C932
0. 001uF
F 903
T4A 250V
L9062.2uH
!
R925
1K 1/8W
!
C 940
0. 1uF
!
R 940
NC
C900
2200pF 250V
Q903
PMBS3904
R 942
1K 1/ 10W 1%
D 903
LL4148
C 906
1500pF 2KV
+
C917
680uF 25V
+C 918
680uF 25V
C902
1000PF / 250VAC
C930
0. 1uF
FB901
BEAD12
R946150OHM2W
L90130.0mH1423R902
1M 1/ 4W
C931
0. 1uF
+5V
CN902
CONN12345678910111213
+5V1DIMON/OFF
T901
POWER XFMR
13456
789101112
+C 916
1000uF / 25V
R 912220 O HM 1/4W
1500P/2KV
IC903
PC 123X2Y F ZOF
12
43
R924
330R 1/8W 5%
BOM
要变更D907
31D Q06F C 3
+
C915
470uF / 16V
+
C939
1000uF / 25V
R961 100 O HM 1/4W
IC904
AZ 431AZ -AE1
R935 100 OHM 1/4W
D906
F C H 10U 15
1
2
3
R 901
1M 1/ 4W
HS3 with Heat-sink(90G6263 1)
C 929
0. 001uF
GND 1 (009G6005 1)GND 2 (009G6005 1)HS4 with Heat-sink(90G6264 1)
c 938
NC
D 901
FR 103
ZD 922
RLZ5.6B12
FOR D908 Heat-sink(90G6264 1)
R905
300K OHM 1/4WR906
300K OHM 1/4W
R918 100 OHM 1/4WR919 100 OHM 1/4W
+C 934
1000uF/ 25V
C 924
0. 1uF
Q901
STP9N K65Z F P
F B904BEAD1
2
R926
1K 1/10W 1%
F902
T4A 250VR930
2.43K O HM 1% 1/10W
R949 100 OHM 1/4WR950 100 OHM 1/4WR951 100 OHM 1/4W
R9140R43 5% 2W
C935
0. 001uF
C904
NC
D 900
PR 1007R
PID
R927
2.43K O HM 1% 1/10W
C 941
0. 047uF / 25V
19 LCD Color Monitor AOC 919Swa
23
O E M MO D E L
SizeRev
Date
Sheet
of
TPV MOD EL
PC B N AME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component絬 隔 瓜 絪 腹
PW PC 9941LH D 1 2A
44 Monday , J une 29, 2009715G2824-2
OD M MOD EL 04. AUD IOG2824-2-X-X-4-090627919swa
IC with Heat-sink(90G6295-3)
IC601
APA2069J I TU LSHUTDOWN
1
BY PASS 2RIN- 3GN D 4GN D 5LI N - 6VOLUME 7SE/ BTL
8
LOU T-9VD D10LOU T+11GND12GND13ROUT+14VD D15ROUT-16
Q601
PMBS3904
C612
0.1uF / 16V
R61010K 1/10W 5%
R609 10K 1/ 10W 5%
C613
0. 1uF / 16V
ROUT-LOU T-ROUT+
R608
0R 05 1/ 8W
R606
6.2KOH M +-5% 1/10W
FB602
BEAD1
2
C 606 0. 47uF / 16V
CN602 CONN1234
C 610 100pF
R605 10K 1/10W 5%
R601
10K 1/10W 5%
R607 6.2KOH M +-5% 1/10W
+
C604
100uF / 25V
C 601 0. 47uF / 16V
C609
1uF / 25V
C 603 0. 47uF / 16V
R603
10K 1/10W 5%C 611 100pF
R602
10K 1/10W 5%
C 602 0. 47uF / 16V
+5V1
C608
1uF / 25V
R604 10K 1/10W 5%
+5V1
CN601
PH ON EJ AC K
12345
+5V1
VOL
LOU T+
MU TE
19 LCD Color Monitor AOC 919Swa 24 8. PCB Layout 8.1 Main Board
19 LCD Color Monitor AOC 919Swa 29 9. Maintainability 9.1 Equipments and Tools Requirement 1. Voltmeter. 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with an IBM Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 7. Service Manual. 8. User Manual.
19 LCD Color Monitor AOC 919Swa
30
9.2 Trouble Shooting
9.2.1 Main Board
1. NO SCREEN APPEAR
No power
No power
Press power key and look if
the picture is normal
Please reinsert and make
sure the AC of 100-240 is
normal
Measure U404 Vout=3.3V
U405 Vout=1.8V
Reinsert or check the
power section
X401 oscillate waveforms
are normal
Replace
U404,U405,CN404
Replace U401
Replace X401
OK OK
OK NG NG
NG
NG