Read Sharp LC-15A2E (serv.man3) Service Manual online
16
LC-15A2E
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
CHASSIS LAYOUT
MAIN Unit (Side-A)
MAIN Unit (Side-B)
17
LC-15A2E
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
TUNER Unit
SWITCH Unit
R/C Unit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
LC-15A2E
LC-15A2E
18~19
BLOCK DIAGRAMS
LAMP
T751
T752
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, GCK
AUDIO
AMPLIFER
IC302
REAR SPEAKER
SP
FRONT SPEAKER
L/R
FLSP
FRSP
AUDIO
AMPLIFER
IC301
L/R
REVERSE
IC303
PA VCC
FIFO
IC1202
PA DC13V
LPF
IC903
LCD
CONTROLLER
IC1201
OFL1
DC/AC
INVERTER
DRIVE
Q751~Q754
INV VCC
INV
DC13V
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
MSP
IC901
VPC
IC802
HSY
ANALOG
SWITCH
IC2007
HSY2
HD
CSYNC
+5V
+31V
+14V
+8V
+38V
+16V
+9V
+5V
-8V
+3.3V
+3.3V REG
IC704
IC201
Q204
Q202
Q203
+5V REG IC701
DC/DC
T701
PWM
IC702
INV DC 13V
PA DC 13V
PA VCC
INV VCC
SIG VCC
DC 13V
OSD
I
2
C bus
S INPUT
AV2 INPUT
AV1
INPUT/
OUTPUT
TUNER
INPUT
HEAD PHONE
OUTPUT
AV
OUTPUT
P701
OSDHD
SCL, SDA
V1 SC
V1 V
DY
V1 L/R
V2 VO
V2 LO/RO
V2 V
V2 L/R
TV V
SIF
SC2 OUT L/R
DACA_L/R
SC401
OSDVD
OSDR, OSDG, OSDB
SUBCLK, SUBIN, SUBOUT, M/S IN, M/S OUT
SC4401
CSYNC
SYNC SEPARATE
IC2005
SC
AV3
VO
AV2
AV1
BUFFER
IC902
TV/AV
SELECTION
IC402
I
2
C
Ë
MAIN BLOCK DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
LC-15A2E
LC-15A2E
20~21
Ë
TUNER BLOCK DIAGRAM
I
2
C bus
S INPUT
AV2 INPUT
AV1
INPUT/
OUTPUT
TUNER
INPUT
HEAD PHONE
OUTPUT
AV
OUTPUT
S INPUT
AV2 INPUT
AV1
INPUT/
OUTPUT
ANT
INPUT
HEAD PHONE
JACK
AV
OUTPUT
SCL, SDA
C IN VPC
H
V
R_VPC, G_ VPC, B_VPC
SUBCLK
SUBIN
SUBOUT
M/S IN
M/S OUT
V IN2 VPC
DY
SC1 IN L/R MSP
V OUT VPC
SC1 OUT L/R MSP
V IN3 VPC
SC2 IN L/R MSP
V IN2 VPC
AN IN1 MSP
SC2 OUT L/R MSP
DACA_L/R
W9
I
2
C
I
2
C
I
2
C
OSD
W1
DC 13V
W13
ANALOG SWITCH
I4
MICON
I9
ANALOG SWITCH
I13
R_OSD, G_OSD, B_OSD
H
V
HEAD PHONE AMP
Q18~Q23
TUNER
W7, W14
HEAD PHONE SOUND(L/R)
SOUND(L/R)
RF
AV1 SOUND(L/R)
AV1 PICTURE
R_SCART, G_SCART, B_SCART
AV1 SOUND OUTPUT(L/R)
AV1 PICTURE OUTPUT
SCL, SDA
AV2 SOUND(L/R)
AV2 PICTURE
S PICTUTE(Y)
S PICTURE(C)
I
2
C
I
2
C
E
2
PROM
I2
ROM
I3
MEMORY
I6
W4
DC JACK
W17
W5
W11
W6
U1
W10
W3
W16
