Read Sharp LC-20B2E (serv.man5) Service Manual online
23
LC-20B2E
22
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
Ë
MAIN Block Diagram
LAMP
T5701~T5702
DC/AC
TRANCE
LAMP ERROR
DET
L_ERR
COMMON DRIVE
IC1109
CSCOM
LCD
PANEL
V0,V16,V32
V48,V64
DAC
IC1101
MP_CLK, MPDA, DAC1CS
CS
GRADUATION
POWER FOR
LCD
IC1102~IC1108, IC1110
R0~R5, G0~G5, B0~B5, CK
FRONT SPEAKER
L/R
FLSP
FRSP
GCK
PA VCC
AUDIO
AMPLIFER
IC3305
PA DC12V
ANALOG MULTIPLEXER
IC1205
L/R
REVERSE
IC303
FIFO
IC1202
LPF
IC903
AUDIO
AMPLIFER
IC304
LCD
CONTROLLER
IC1201
OFL1
DC/AC
INVERTER
DRIVE
Q3603
Q5701~Q5703
INV VCC
INV
DC12V
KEY
REMOTE CONTROL
RECEIVER
RESET
IC2002
CS
E
2
PROM
IC2004
I
2
C
I
2
C
I
2
C
I
2
C
MICON
IC2001
MP_CLK, MPDA, DAC1CS
CONTROL SIGNAL
LLC1, LLC2, FIELD
VSY
HSY
UV0~UV7, VP_Y0~VP_Y7
DACM_L/R
DACA_L/R
MSP
IC901
VPC
IC801
HSY
ANALOG
SWITCH
IC2007
HSY2
HD
CSYNC
+5V
+31V
+14V
+8V
+38V
+16V
+9V
+5V
-8V
+3.3V
+3.3V REG
IC752
IC201
Q204
Q202
Q203
+5V REG IC751
DC/DC
T701
PWM
IC702
INV DC 13V
PA DC 13V
PA VCC
INV VCC
SIG VCC
DC 13V
OSD
S INPUT
AV2 INPUT
AV1
INPUT/
OUTPUT
TUNER
INPUT
HR
HL
AV
OUTPUT
P901
OSDHD
V1 SC
V1 SY
V1 IN
V1 L/R
V2 VO
V2 LO/RO
V2 V
V2 L/R
TV V
SIF
SC2 OUT L/R
SC902
J5001
SC5001
OSDVD
OSDR, OSDG, OSDB
SUBCLK, SUBIN, SUBOUT, M/S IN, M/S OUT
SC801
CSYNC
SYNC SEPARATE
IC401
SC
AV3
VO
AV2
AV1
BUFFER
IC902
TV/AV
SELECTION
IC402
I
2
C bus
SCL, SDA
I
2
C
P2004
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