AOC 919swa Service Manual
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19 LCD Color Monitor AOC 919Swa 11 5.3 Electrical Characteristics 1.TFT LCD Module: M190MWW3 Note: A. If it exceeds MIN/MAX values, then CCFL Life, ON/OFF Cycle, and SAFETY will not be guaranteed. B. CCFL Frequency should be carefully determined to avoid interference between inverter and TFT LCD. C. The voltage over specified value (VCCFLi) should be applied to the lamp more than 1 second after startup. Otherwise, the lamp may not be turned on. The used lamp current is the lamp typical current. The inverter should be able to give out a power that has a generating capacity of over 1560 voltage. Lamp units need to over 1560 voltage for ignition. TPM190A1 2.Back Light Unit: M190MWW3
19 LCD Color Monitor AOC 919Swa 13 6. Block Diagram 6.1 Software Flow Chat 1 2 NY 5 YN 10 YN 12 Y N 7 Y N 6 4 3 8 9 14 11 13 YN 15 YN 16 17 19 Y N 18
19 LCD Color Monitor AOC 919Swa 14 REMARK: 1) MCU initialize. 2) Is the EPROM blank? 3) Program the EPROM by default values. 4) Get the PWM value of brightness from EPROM. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode. 9) Save the power key status into EPROM.Turn on the LED and set it to green color.Scalar initializes. 10) In standby mode? 11) Update the lifetime of back light. 12) Check the analog port, are there any signals coming? 13) Does the scalar send out an interrupt request? 14) Wake up the scalar. 15) Are there any signals coming from analog port? 16) Display No connection Check Signal Cable message. And go into standby mode after the message disappear. 17) Program the scalar to be able to show the coming mode. 18) Process the OSD display. 19) Read the keyboard. Is the power key pressed?
19 LCD Color Monitor AOC 919Swa 15 6.2 Electric Block Diagram 6.2.1 Main Board FLASH MEMORY SST25LF020A-33-4C-SAE (U402) Scalar HX6803-A000LAG (Include :MCU,ADC,OSD etc) (U401) Panel Interface (CN405) EEPROM M24C04-WMN6TP (U406) D-Sub Connector (CN101) EEPROM M24C02-WMN6TP (U101) DDC1_SDA DDC1_SCL Key Control Interface (CN408) Crystal 24.576MHz (X401)
19 LCD Color Monitor AOC 919Swa 16 6.2.2 Inverter / Power Board Audio Feedback Circuit Transformer (PT801) MOSFET (Q805,Q806) Lamp Output Circuit PWM Control IC OZ9938GN (IC801) ON/OFF DIM PID 16V EMI filter Start Circuit (R904,R905， R906) PWM Control IC LD7576 (IC901) Transformer (T901) AC input 16V 5V Bridge Rectifier,FilterRectifier diodes Power Switch (Q901) Photocoupler (IC903) Regulator (IC904) Audio Power Amplifier APA2069JITUL (IC601) CN601(Phone Jack) CN602 +5V
19 LCD Color Monitor AOC 919Swa
17
7. Schematic 7.1 Main Board
R125
4K7 1/ 16W 5%
VGA_PLU G
O EM 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
AOC 931SN D TB DB
25 Monday , Sept em ber 21, 2009G2681-1-4
<
称爹> 02.I nputG2681-1-4-X-1-090921
U 101
M24C02-WMN 6TPA0 1A1 2A2 3VSS 4
SDA5SC L6WP7VC C8
C120
10pF
B_GND
5V_ESD
C 121
10pF
DSUB_SCLDSUB_SDA
候綼
U1 0 3
G_GN DDSUB_5V
CMVCC1
DSUB_5V 5
CMVCC1 5
C122
10pF
R_GND
C 110
0. 047uF
VGA_R +
VGA_B+
VGA_G+
ED I D_W P
V_Sy nc
C118
0. 1uF/ 16V
D105
BAV70
3
1
2
候綼
U1 0 1
R121
10K 1/16W 5%
R120
10K 1/16W 5%
R119
4K 7 1/16W 5%
DDC1_SCL 3DDC1_SDA 3
DSUB_V 3DSUB_H 3
DSUB_B+ 3DSUB_SOG 3DSUB_R+ 3DSUB_G+ 3
DET_CABLE 3
DDC1_SDADDC1_SCLEDI D_WP
H_Sy nc
Q410
2N 3904S-R TK/PS
FB104
300 OH M
VGA_G+B_GND
H_Sy ncV_Sy nc
G_GN DVGA_B+R_GND
VGA_B+
DSUB_5VVGA_R+
VGA_G+VGA_R +
DSUB_SDADSUB_SCL
VGA_PLU G
C 106
0. 047uF
U102
AZ C 099-04SI/O1 1GN D 2I/O2 3
I/O34VD D5I/O46
R110
100R 1/ 16W 5%
Z D104
UDZSNP5.6B12
U103
AZ C 099-04SI/O1 1GN D 2I/O2 3
I/O34VD D5I/O46
R124
CHIP BEADR122
CHIP BEAD
R 112
75R 1/ 16W 5%
R 103 1K 1/ 16W 5%
C115
NC
R 101 80 OH M
CN101
DB15162738495
1112131415
10
1716
R 107
75R 1/ 16W 5%
R 109
390 OHM 1/16W
R113
100R 1/16W 5%
R118
1K 1/16W 5%
R 111
390R 1/ 16W 5%
C114
NC
C 101
0. 047uF
C 102
22pF
C 107
0. 047uF
R 115
390R 1/ 16W 5%
R 102 1K 1/ 16W 5%
R123
CHIP BEAD
R 105
2K2 1/16W 5%
R106
2K2 1/ 16W 5%
R 116
75R 1/ 16W 5%
C103
22pF
Z D103
UDZSNP5.6B
12
R 104
390R 1/ 16W 5%
DSUB_5V 5
VCC3.3 3,5
GND POWER
DGND
VCC3.3
DSUB_5V
5V_ESDESD_5V
DDC1_SDADDC1_SCL
19 LCD Color Monitor AOC 919Swa
18
POW ER _KEY #
VCC3IOC 438
0. 1uF/ 16V
C 439
0.1uF /16V
KEY 1
SDOCSNSCKSDI
GN D
RST
PANEL_I D# 7
SD ICSNSCKSDO
VCC3IO
XT AL_OU TR 469 0R 05 1/ 16W
R456
1K 1/16W 5%
SPI _W P#
VCC1.8 5
R 468 N C
VCC3.3
GN D
FB406
BEAD1
2
O E M MO D EL
Size
Rev
DateSheet
of
TP V MO D EL
PC B N AME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )Key Component絬 隔 瓜 絪 腹
AOC 931SN D TB DCustom
35 Monday , Septem ber 21, 2009G2681-1-4
<
称爹> 03. Sc alerG2681-1-4-X-1-090921
C 442
10uF/ 10V
VSSA_ADVSSP_ADGNDIOGNDIO
adj_BAC KLIGH T 5Mu t e 5
VSSP_AD
Volum e# 5
R462
10K 1/ 16W 5%
on_Panel 4
C441
10uF /10V
on_BAC KLI GH T 5
R 461
10K 1/16W 5%
GN D
R 460
10K 1/16W 5%
R 471 100R 1/ 16W 5%R 472 100R 1/ 16W 5%R 473100R 1/ 16W 5%
USRD_MSCL
C444
0.22U F 10V
C 455
10uF/ 10V
DET_CABLE 2
VCC3.3GN D
R 480 N C
R466
0R 05 1/ 16W
C450
0. 1uF /16V
R 467 10K 1/ 16W 5%
R 465
6K8 1/ 16W 5%CMVCC
USER DATA
LVDS
X1 GROUNG
SHIELDING
VCCK
VCCLVP
VCCP
CMVCC 5
KEY 2
綼
IC PIN綼 IC PIN
AC_DET
UDP_WP
KEY 1
SPI _WP#
VDDA_AD
VCC3.3
C404
0. 1uF/ 16V
VSSP_AD
C 433
0.1uF /16VVDDP_AD
POWER_KEY #
POWER_KEY #
PA4PA5
PA[4..9]
R 419 N C /61G0402101PA6PA7PA9PA8
VCC3.3 2, 5
USRD_MSDA
LED_GRN/BLUE
PB[0..9]
PB1PB0PB4PB2PB3PB5
SST-020A
ZD 401
NC/UDZSNP5.6B
12
KEY 2
PB6PB9PB8
C N 408
CONN123456
PB7
C N 409
NC/CONN1234567
VSSA_AD
C436
0. 1uF/ 16V
C 437
0. 1uF / 16V
1
AC _D ET
DSUB_B+ 2DSUB_G+ 2DSUB_SOG 2DSUB_V 2DSUB_H 2DSUB_R+ 2DDC1_SDA 2DDC1_SCL 2
0
GN D
R402
1K 6 OHM 1/16W 5%
U 406
M24C 04-WMN 6TP
NC1E12E23VSS4SD A 5SC L 6WC7VC C 8
C409
0. 1uF / 16V
VDDP_AD
C 405 0. 01uF/ 25V
0
CMVCC
R 488
10K 1/16W 5%
R 487
10K 1/ 16W 5%
C N 406
NC/CONN12345678
C 401
0. 1uF/ 16V
R 486 N C / 1K 1/16W 5%
C 402
4. 7uF/ 16V
R455
1K 1/16W 5%
R454
NC
PA[ 4. . 9] 4PB[ 0. . 9] 4
R 401
1M 1/16W 5%
Q412
2N 3904S-R TK/ PS
VREF
PA[0..1]
CSN
SDO
SC K
R463 NCR464 NC
RST
C 456
1uF/ 16V
R485 NC/1K
PA0
POWER_ON_LATCH
PA[ 0. . 1] 4
Near to Connect
R 4505K 1 OHM 1/16W 5%
VDDP_AD
VDDDP_ADVDDA_AD
LED _OR AN GE
VCCLVP
PA1C N 402
NC/CONN123456
VCCP
X401
24. 576MH z
C N 407
NC/CONN1234567
Q402
PMBS3906
R427
3. 9K OH M 1/ 16W
C 407
0.1uF /16V
R407
10K 1/ 16W 5%
C 412
33pF
FB404
NC
Q401
PMBS3906
C 411
33pF
R 428
3. 9K OH M 1/16W
R 416 4K7 1/ 16W 5%
R 411 100R 1/ 16W 5%
R 421
10K 1/16W 5%
C 408
0. 22uF16V
C 403
0.1uF /16V
C 445
NC
C 413
0.1uF /16V
R410
120R 1/ 16W 5%
TOUCH_POWER
U 402
SST25LF 020A-33-4C -SAECE#1SDO2
WP# 3VSS 4
SD I5SC K6
HOLD# 7VDD 8
R414
120R 1/ 16W 5%
C 417
0. 1uF/ 16V
C414
0.1uF /16V
R 420 100R 1/16W 5%
C 416
0. 1uF /16V
HX6803-A000LAG
U401
VDDP_AD(3.3V)13VDDA_AD(3.3V)10
HSY NC 11SOG 8VSY N C 12R 9G 7
VDDDP_AD(3.3V)16
DDCA_SDA/RS232_TX/ GPI O17 17VR EF (1. 25V) 4
VSSP_AD 15
FILT 14
USRD_MSCL/GPIO1621
CSN 23SD O 22SC K 24
GPI O02/ R S232_R X27
SAR 156
XT A L _ I N 1
VCCP(1.8V)2
LVA2P35LVA2N36LVA1P37LVA1N38LVA0P39LVA0N40LVB3P42LVB3N43LVBC KP44LVBC KN45LVB2P46LVB2N47LVB1P48LVB1N49LVB0P50LVB0N51LVA3N34LVA3P33
VSSA_AD 5
B 6
VCCK(1.8V)32
GNDIO 31
VCCK(1.8V)52
VCC3IO(3.3V)30
DDCA_SCL/RS232_R X/ GPI O18 18
GPIO00/ PW MD19
TS TMD 62
USRD_MSDA/GPIO1520
GPI O03/PW MB28
SAR 055
PW MB/ GPI O1058PWMC/GPI O1159PWMD/GPI O1260
GPI O0561
RST_N 63XT A L _ O U T 64SD I 25
GPIO01/ R S232_TX26VCC3IO(3.3V)54
VC C LVP(1. 8V)41GNDIO 53
GPIO04/ PW MC29
SAR 257GPI O063
C 415
0. 1uF/ 16V
R 415 4K7 1/ 16W 5%
R 418 N C / 61G0402101
0SCK
PMC,MXIC(2M)1 SST-010A
R453
1K 1/16W 5%
C 406
0. 1uF /16V
100
00 SST-010
0 CSN
R452
NC
R451
NC1
PMC,MXIC(1M) Spansion(2M)
POWER_ON_LATCH Setting
R 412 100R 1/ 16W 5%
SPI-Flash
1
0 0 SDO
00
1
R 404
10K 1/ 16W 5%
R 490 N C / 61G0402101
VDDDP_AD
VCC3.3
VCC3.3
VCC3.3
VCC3.3
VCC1.8
FB409
220OHM1
2
VCCK
VCC3.3
VCC3.3
LED_GRN/BLUELED _OR AN GE
FB405
BEAD1
2
TOUCH_POWER
VCC3.3R 457
10K 1/ 16W 5%
SPI _W P#
R48210K 1/16W 5%
19 LCD Color Monitor AOC 919Swa
19
PB2
Ripple Current NG
PB4
PB5
PB0
PB6
LVDS OUTPUT
on_Panel
O EM MO D E L
SizeRev
Date
Sheet
of
TPV MOD E L
PCB N AME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )Key Component絬 隔 瓜 絪 腹
AOC 931SN D TBDA4
45 Monday , Sept em ber 21, 2009G2681-1-4
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称爹
> 04. Out putG2681-1-4-X-1-090921
on_Panel 3
2
A O3401L3D
G
1
S
PANEL_VCC
C 446N C / 65G0402104 15
C 447
NC
PA1PA0
R 435
4K7 1/ 16W 5%
+C 421
100U F 25V
FB402
120OHM
R436
51K OHM 1/16W
Q404
PMBS3906
VCC3.3D 5
Q405
AO3401
C420
0. 1uF / 16V
C N 405
N C / 33G801930F CH J S123456789101112131415161718192021222324252627282930
R434
330 OHM 1/ 4W
C 419
0. 1uF / 16V
R 433
10K 1/ 16W 5%
PANEL_VCC
PANEL_VC C
CMVCCD 5
PB9PB8PB7
PA[ 0. . 1]
PB6
PA4PA5
PA[4..9]
PA6PA7PA9PA8
PB5PB4
PA1
PA[0. .1] 3PA[ 4. . 9] 3
PB3
PB[0..9]
PB4PB3PB1PB0
PB[0. .9] 3
PB5PB2PB8PB9PB6PB7
PB2PB1
PB2
PB1PB9PA9
PA6PA0
PA5
PA4
PB7
PA8PB8PB0
PA7PB3PB3
PA9PA8PA7PA6PA5
R 48147K 1/16W 5%
PA4PB3CN 403
CONN
24681012141618202224262830
1357911131517192123252729
PB2PA1PA0
19 LCD Color Monitor AOC 919Swa
20
U 403
N C / AP1117D 33LAADJ(GND) 1VOU T 2VI N 3
VCC3.3D
VCC3. 3D 4
R 478 N C
Q411
2N3904S-R TK/ PS
R 477
4K7 1/ 16W 5%
PANEL_ID#
VCC1.8 3
R 441
1K 1/ 16W 5%
Q408
2N3904S-R TK/ PS
D 402
SR 24
R 447
NC
C432
0. 1uF / 16V
+C 424
100uF M 16V
+C 426
100uF M 16V
+C423
100uF M 16V
R438
3.3 O HM 2W
D401
N C / BAV70/ / 93G 64 42 P
3
1
2
R 440
4K7 1/ 16W 5%
+C 427
100uF M 16V
R 437
10K 1/ 16W 5%
R446
NC / 10K 1/ 16W 5%
R 439
10K 1/ 16W 5%
Q406
2N3904S-R TK/ PS
C 425
NC
U405VI 3
VO2GN D 1VO4
U404
AP1117E33LA
VSS 1VOUT2
VI N 3
4 4
R 448
4. 7K 1/ 16W
C 422
0. 1uF / 16V
R 449
NC
C 428
0. 1uF / 16V
C431
0. 1uF / 16V
MV C C
CMVCC
VCC3.3
VCC3.3
VCC3.3
VCC3.3
VCC3.3
VCC3.3
VCC1.8
CMVCC1
CMVCC1
D SUB_5V
CMVCC1
OEM MOD EL
SizeRev
Date
Sheet
of
TP V MO D EL
PC B NAME
称爹
T P V ( Top Vic t ory Elec t ronic s C o . , Lt d. )Key Component絬 隔 瓜 絪 腹
931SN D TB DB
55 Monday , Sept em ber 21, 2009G2681-1-4
<
称爹> 05. POW ERG2681-1-4-X-1-090921
D 403
BAT54C
R 476
0R05 1/ 16W
R 491 N C
BKLT_VBRI
R 475
10K 1/ 16W 5%
Mu t e 3
adj_BAC KLI GH T 3
Volum e# 3
on_BAC KLI GH T 3
C N 404
CONN
123456789
FB 408 NC,71G 56Z601
FB 407 300 OHM
CMVCCD 4
ESD _5V 2Volum e
BKLT_ENBKLT_VBR IMu t e
BKLT_EN
Volum eCMVCCCMVCC
CMVCC 3
CMVCC1 2
DSUB_5V 2
VCC3.3 2,3
ESD _5V