21
17
16
19
18
15
14
13
12
11
10
LC-20B2EA
I
2
C
I
2
C
ROM
E
2
PROM
ACA_L/R
CM_L/R
AUDIO AMP
AUDIO AMP
I
2
C
IC304
SC2_OUT_L/R
IC3500
AUDIO ACTIVE FILTER
IC1903
L/R_IN
AUDIO
POWER AMP
IC3305
PAVCC(+13V)
FLSP/FRSP
SPEAKER
P3301
P3302
J5003
J3902
J3903
HEADPHONE
JACK
AUDIO OUT
HL/R
SC1201
SC1202
SC1203
LCD
PANEL
V0 V7 V17 V21 V32 V64
V112 V176 V235 V255
R0~7 G0~7 B0~7
P3601
BACK
LIGHT
LAMP
GRADATION
POWER
IC1102~1108
IC1110
IC1112~1115
COMMON DRIVE
VGLCOM
VCOM
CSCOM
IC1109
DAC
IC1101 1111
LAMP ERROR
DETECTOR
Q3600~3604
L_ERR
HV1/2/3
MICON
IC2001
030
Y/UV
PI
SYNC SIGNAL
CONTROL SIGNAL
IC2004
LCD
CONTROLLER
IC1201
REV
RESET
IC2002
RESET
OSD R/G/B
R/G/B
OSD/TEXT
SELECTOR
IC1203
MPCLK
MPDA
DAC2CS
DAC1CS
TEXT R/G/B
L_ERR
OFL REVERSE
Q3650
DC/AC
INVERTER
DRIVE
Q6700
~6714
13V)
DC/AC
TRANS
T6700
~6709
KEY
P4001
P4004
REMOTE
CONTROL
RECEIVER
SRAM 2M
IC1603
FLASH 4M
IC1602
TELETEXT
CPU
IC1601
CVBS
R/G/B
I
2
C
TEXT
R/G/B AMP
IC1619 1620
+22V
+31V
+5V
+3.3V
+2.5V
OFL1
A0_L/R
OFL
UART
Summary of Contents for LC-20B2EA
Page 3: ...3 LC 20B2EA SPECIFICATIONS ...
Page 19: ...19 17 16 19 18 15 14 13 12 11 10 LC 20B2EA INVERTER A Unit INVERTER B Unit ...
Page 22: ...22 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA OVERALL SCHEMATIC DIAGRAM ...
Page 23: ...23 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 26: ...26 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë MAIN Unit 1 6 ...
Page 27: ...28 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë MAIN Unit 2 6 ...
Page 28: ...27 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 29: ...29 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 30: ...30 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë MAIN Unit 3 6 ...
Page 31: ...31 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 32: ...32 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë MAIN Unit 4 6 ...
Page 33: ...33 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 34: ...34 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë MAIN Unit 5 6 ...
Page 35: ...35 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 36: ...36 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë MAIN Unit 6 6 å ...
Page 37: ...37 17 16 19 18 15 14 13 12 11 10 LC 20B2EA å ...
Page 38: ...38 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë TUNER Unit 1 4 ...
Page 39: ...39 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 40: ...40 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë TUNER Unit 2 4 ...
Page 41: ...41 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 42: ...42 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë TUNER Unit 3 4 ...
Page 43: ...43 17 16 19 18 15 14 13 12 11 10 LC 20B2EA å ...
Page 44: ...44 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë TUNER Unit 4 4 ...
Page 45: ...45 17 16 19 18 15 14 13 12 11 10 LC 20B2EA ...
Page 46: ...46 6 5 4 3 2 1 A B C D E F G H LC 20B2EA Ë INVERTER A Unit å å å ...
Page 47: ...47 6 5 4 3 2 1 A B C D E F G H LC 20B2EA INVERTER B Unit å å ...
Page 48: ...48 6 5 4 3 2 1 A B C D E F G H LC 20B2EA PRINTED WIRING BOARD ASSEMBLIES MAIN Unit Side A ...
Page 49: ...49 6 5 4 3 2 1 A B C D E F G H LC 20B2EA MAIN Unit Side B ...
Page 50: ...50 6 5 4 3 2 1 A B C D E F G H LC 20B2EA TUNER Unit ...