Read Sharp LC-20B2EA Service Manual online
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1
A
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C
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F
G
H
LC-20B2EA
BLOCK DIAGRAM
ANTENNA
SCART
(AV1)
(AV1)
AUDIO IN
AUDIO OUT
VIDEO OUT
SCL/TXD
SDA/RXD
SC3903
VIDEO IN
R/G/B_ST
INPUT
INPUT
INPUT
SC5001
S
VIDEO
(AV2)
(AV2)
AUDIO
(AV2)
(AV2)
DC13V
J5002
J5001
J3702
INPUT
PAVCC
DC/DC
CONVERTER
T3701
Q3700
+13V
V1.L/R
I
2
C/UART
V1.SY
TV_V
SC_L/R
TV/AV
SELECTOR
IC402
TUNER
SIF1/2
AI_L/R
I
2
C
I
2
C
I
2
C
I
2
C
E
2
PROM
AUDIO AMP
IC1902
ANA_IN1+/2+
SC2_IN_L/R
SC1_OUT_L/R
SC1_IN_L/R
MSP
IC1901
DACA_L/R
DACM_L/R
A
I
2
C
SC2_OUT_L/
V2_V
R/G/B_IN
VPC
IC801
V1. SC
V1IN
V2VO
SYNC SEP
IC401
CSYNC
UART
MICON
IC2001
IC2001
IC2030
Y/
SPI
S
CON
R
L_
REG
IC1208
REG
IC751
+3.3V
+5V
+31V
–20V
Q3706
REG
REG
REG
REG
IC752
IC1610
Q3704
IC3702
Q3707
+22V
+31V
+9V
+8V
+5V
+5V
+3.3V
+2.5V
+3.3V
–8V
IC1606
IC1613
SIGVCC
INVVCC
REG
IC703
PWM
IC3701
+5V
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