Read Sharp LC-22SV2E (serv.man10) Service Manual online
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A
B
C
D
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F
G
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LC-22SV2E
BLOCK DIAGRAM 2/2
MAIN BLOCK DIAGRAM
TUNER
M
SP
SPEAKER
AUDIO
SPEAKER
IC1901
OUT AMP
POWER AMP
L/ R
IC1903
IC3305
OUTPUT
AV2
RCA L/R
AUDIO
L/R AUDIO
OUT AMP
OUTPUT
INPUT
IC3500
J3902,J3903
J2202
HEADPHONE
HEADPHONE
AV2
AMP
J2204
VIDEO IN
I
C304
J2203
TV/AV
TO DIGTAL
SELECTER
(ME)
AV2
IC3402
SC2202
S-VIDEO IN
J2204
VIDEO
AMP
IC2200
AV1
SCART
INPUT/
OUTPUT
SCART
OUT AMP
T
EXT RGB
IC3402
AMP
IC1620,1621
SCART or TEXT
TELETEXT
RGB SELECTER
CPU
SRAM 2M
IC3404
IC1601
IC1603
SCART or TEXT
FLASH 4M
BLANKING
IC1602
SELECTER
IC3403
MICON
TO DIGTAL
CONTROL
IC2001
(MC)
BUS SW
SC2001
IC3101
R/C,LED UNIT
R/ C,LED
TO DIGTAL
OPC
(MA)
SC2201
OPERATION UNIT
LAMP ERROR
INVERTER GND
BACK
KEY
DETECTOR
P3701,P3702
LIGHT
OPERATION
Q3705,Q3706
(GA,GB)
Q3707,Q3709
E2P ROM
E2P ROM
RESET
IC2030
IC2030
IC2002
DC/AC TRANCE
T6551-T6562
DC13V
INV_Vc c
INPUT
IC3701
+31V
INVERTER
J3701
S_Vc c
DRIVE
+8V
Q6551-Q6562
DC-DC
CONVERTER
+9V
T3701
+5V
TO INVERTER
(PF)
-8V
P3705
PWM
IC3701
POWER SW
5V
Q751,Q752
REG
+5V
Q753
IC751
3.3V
REG.
+3.3V
IC752
STAND-BY
SW
+13V
Q3711,Q3712
B13V1A
3.3V
REG.
+3.3V
IC1606
5V
REG
+5V
IC1610
2.5V
REG.
+2.5V
IC1613
SIF
OFL
INV_VC C
INVERTER
UNIT
TXD/RXD
SCL/SDA
CSYNC
SCALLER CONTRO
L
SCSB,SCK,SSI,SRDYB,SSO
G/A CONTROL
MP_CS,DA,CLK
OSD CONTROL
OSD R/G/B,CK,BLK,HD,V D
TEXT
BLANKING
RGB CONTRO
L
TEXT RGB
RGB SCART IN
AV1 VIDEO IN
AV1 AUDIO
OUT L/ R
AV1 VIDEO
OUT
AV1 AUDIO
IN L/R
V1_S Y
V2V0
TEXT_RGB
FSW1
RGB_ST
V2_V
V1_S C
V1_I N
V AV1
TV_ V
TXD/SCL
RXD/SDA
Display
