20" LCD TV Color Monitor AOC L20S421
77
+3.3Vstb
IN_SOG
VDDA_PPLL
C464
22n
VSDA
C465
33n
+1.8V_PPLL
R411
47R
FER_B
+3.3V_IO
+3.3V_AVI
R217
100
R410
47R
C458
10pf
FER_G
C438
220p
+3.3V_PLL
C460
22p
C467
33n
6745_RST
XTAL2LI
IIC_SDA
+1.8V_CORE
SCALER_R
R412
47R
PanelVDD_EN
FER_R
R407
10E
FER_B
C439
220p
C457
10pf
+1.8V_ADC
SCALER_B
IN_SOG
+1.8V_XTL
+3.3V_IO
AVSYNC
C462
33n
BAIN
+
C455
10u
R415
4k7
AHSYNC
+3.3V_IO
R416
4k7
BL_EN
R414
4k7 NC
RAIN
FER_G
R418
82k
VSCL
BL_ADJ
R408
10E
R413
4k7
6745_RST
R419
3.3k
SCALER_G
U401A
LOCI
J3
G1
F1
AF9
J4
H3
G2
F2
G3
H4
E1
AA3
E2
F3
G4
D2
E3
D3
F4
D4
E4
B3
AE14
C4
B4
A4
C5
D5
B5
A5
C6
D6
B6
A6
B7
D7
C7
D8
C8
A7
B8
A8
L14
M14
A9
B9
B10
L13
C10
A11
B11
C11
K4
J2
H1
J1
K2
L4
A1
A2
L3
A10
A17
M2
A18
A19
M3
A21
A22
L1
A24
L2
M1
N4
N3
P4
N2
N1
P3
P2
P1
R3
R4
R2
R1
T1
T2
U1
T3
T4
V1
U2
U3
U4
V4
V2
V3
W1
W2
W3
Y1
Y2
AA1
AA2
NC43
VDDA_PPLL
VSSA_PPLL
INT_N/GPIO(7)
RST_N
GPIO()09/ACLK
NC42
SDA/GPIO(13)
SCL/GPIO(12)
GPIO(4)/PWM1/TCP_TDO
GPIO(3)/TRST
VDD_IO1
VSS_CORE7
VSSA_XTAL
XTAL1
XTAL0
VDD_XTAL
GPIO(2)/TCK
VSS_CORE6
NC55
GPIO(2)/T1/TD1
GPIO(0)/T0/TMS
T_ENABLE
NC41
NC40
NC39
NC38
NC37
NC36
VSS_CORE5
VDD_CORE5
VSS_IO3
VDD_IO3
VSS_CORE4
VDD_CORE4
NC35
NC34
NC33
NC32
NC31
NC30
NC29
NC28
NC27
NC26
NC25
NC24
NC23
NC22
NC21
NC20
NC19
VSS_CORE3
VDD_IO0
VDD_IO01
KBD0
KBD1
PWM0
NC45
NC46
VDD_CORE11
NC47
NC48
VSS_CORE11
NC49
NC50
VSS_CORE01
NC51
NC52
TXD/GPIO(6)
NC53
VSS_IO31
VDD3V3_RGB2
VSSA_RGB2
IN_B
REF_B
VSSA_ADC_B
VDDA1V8_ADC_B
AVI_TEST
VDD3V3_RGB1
VSSA_RGB1
IN_G
REF-G
VSSA_ADC_G
VDDA1V8_ADC_G
VDD3V3_IN
VSSA_CLEAN
VDD_CORE0
RB|AS
SOGIN
VDD3V3_RGB0
VSSA_RGB0
IN_R
REF_R
VSSA_ADC_R
VDDA1V8_ADC_R
VDD3V3_LPLL
VDD1V8_LPLL
VSSA_CLEAN_LPLL
VSSA_LPLL
AHS
AVS
ASCL/GPIO14
ASDA/GPIO(15)
+3.3V_IO
R409
12K 1/16W
X401
24.576MHZ
C463
33n
C461
22p
R414 need NC to active
BL_EN&BL_ADJ
IIC_SCL
SCALER_G
SCALER_R
C468
33n
GAIN
FER_R
AVI_DET
SCALER_B
C466
33n
+1.8V_CORE
R406
10E
R420
3.3k
09
1
SCALAR-A
AOC (Top Victory) Electronics Co., Ltd.
A3
9
14
Thursday, January 19, 2006
Title
Size
Document Number
Rev
Date:
Sheet
of
C456
100p
C459
10pf
Summary of Contents for Envision L20S421
Page 27: ...20 LCD TV Color Monitor AOC L20S421 27 6 Remove the 15 screws to remove the bezel ...
Page 28: ...20 LCD TV Color Monitor AOC L20S421 28 7 Remove the ten screws to remove the main frame ...
Page 29: ...20 LCD TV Color Monitor AOC L20S421 29 8 Exploded View ...
Page 58: ...20 LCD TV Color Monitor AOC L20S421 58 10 PCB Layout 10 1 Main Board 715T1802 1 ...
Page 59: ...20 LCD TV Color Monitor AOC L20S421 59 ...
Page 60: ...20 LCD TV Color Monitor AOC L20S421 60 10 2 Power Board 715T1811 2 ...
Page 61: ...20 LCD TV Color Monitor AOC L20S421 61 ...
Page 62: ...20 LCD TV Color Monitor AOC L20S421 62 ...
Page 63: ...20 LCD TV Color Monitor AOC L20S421 63 10 3 Tuner Board 715T1747 1 ...
Page 64: ...20 LCD TV Color Monitor AOC L20S421 64 ...
Page 65: ...20 LCD TV Color Monitor AOC L20S421 65 ...
Page 66: ...20 LCD TV Color Monitor AOC L20S421 66 10 4 IR Board 715T1817 1 ...