Sharp LC-19A1E (serv.man5) Service Manual ▷ View online
LC-19A1E-BK/WH
5 – 9
W12
V_CORE
—
The power supply (1.5V) for a digital core
B1.5V
W14
V_CORE
—
The power supply (1.5V) for a digital core
B1.5V
Y12
V_CORE
—
The power supply (1.5V) for a digital core
B1.5V
Y14
V_CORE
—
The power supply (1.5V) for a digital core
B1.5V
D8
G_OTHER
—
Digital ground
GND
E6
G_OTHER
—
Digital ground
GND
E8
G_OTHER
—
Digital ground
GND
E9
G_OTHER
—
Digital ground
GND
E12
G_OTHER
—
Digital ground
GND
E16
G_OTHER
—
Digital ground
GND
E19
G_OTHER
—
Digital ground
GND
F5
G_OTHER
—
Digital ground
GND
G4
G_OTHER
—
Digital ground
GND
H3
G_OTHER
—
Digital ground
GND
H19
G_OTHER
—
Digital ground
GND
K10
G_OTHER
—
Digital ground
GND
K11
G_OTHER
—
Digital ground
GND
K12
G_OTHER
—
Digital ground
GND
K13
G_OTHER
—
Digital ground
GND
K14
G_OTHER
—
Digital ground
GND
K19
G_OTHER
—
Digital ground
GND
L10
G_OTHER
—
Digital ground
GND
L11
G_OTHER
—
Digital ground
GND
L12
G_OTHER
—
Digital ground
GND
L13
G_OTHER
—
Digital ground
GND
L14
G_OTHER
—
Digital ground
GND
L19
G_OTHER
—
Digital ground
GND
L20
G_OTHER
—
Digital ground
GND
L21
G_OTHER
—
Digital ground
GND
M10
G_OTHER
—
Digital ground
GND
M11
G_OTHER
—
Digital ground
GND
M12
G_OTHER
—
Digital ground
GND
M13
G_OTHER
—
Digital ground
GND
M14
G_OTHER
—
Digital ground
GND
M23
G_OTHER
—
Digital ground
GND
N10
G_OTHER
—
Digital ground
GND
N11
G_OTHER
—
Digital ground
GND
N12
G_OTHER
—
Digital ground
GND
N13
G_OTHER
—
Digital ground
GND
N14
G_OTHER
—
Digital ground
GND
N19
G_OTHER
—
Digital ground
GND
P10
G_OTHER
—
Digital ground
GND
P11
G_OTHER
—
Digital ground
GND
P12
G_OTHER
—
Digital ground
GND
P13
G_OTHER
—
Digital ground
GND
P14
G_OTHER
—
Digital ground
GND
P20
G_OTHER
—
Digital ground
GND
P21
G_OTHER
—
Digital ground
GND
V19
G_OTHER
—
Digital ground
GND
W13
G_OTHER
—
Digital ground
GND
W16
G_OTHER
—
Digital ground
GND
W17
G_OTHER
—
Digital ground
GND
W20
G_OTHER
—
Digital ground
GND
W21
G_OTHER
—
Digital ground
GND
Y3
G_OTHER
—
Digital ground
GND
Y4
G_OTHER
—
Digital ground
GND
Y5
G_OTHER
—
Digital ground
GND
Y9
G_OTHER
—
Digital ground
GND
Y10
G_OTHER
—
Digital ground
GND
Y11
G_OTHER
—
Digital ground
GND
Y13
G_OTHER
—
Digital ground
GND
Y15
G_OTHER
—
Digital ground
GND
Y16
G_OTHER
—
Digital ground
GND
N21
FVCC
—
The power supply (3.3V) for flash memory
B3.3V
Pin No.
Pin Name
I/O
Pin Function
sheet name
LC-19A1E-BK/WH
5 – 10
2.2. IC803 (VHiS24CS64A-1Y)
2.2.1 Block Diagram
2.2.2 Pin Connections and short description
M22
FVSS1
—
Ground for Flash memory
GND
N20
FVSS2
—
Ground for Flash memory
GND
A18
IVDD
—
Buffer power supply (3.3V) in an audio multiplex decoder I /O
B3.3V
B18
IVSS
—
Buffer ground in an audio multiplex decoder
GND
C18
DVDD
—
Digital core power supply (1.5V) in an audio multiplex decoder
B1.5V
D18
DVSS
—
Digital core ground for an audio multiplex decoder
GND
A22
AVDD_AD
—
A/D converter core power supply (3.3V) in an audio multiplex decoder
B3.3V
B21
AVSS_AD
—
A/D converter core ground in an audio multiplex decoder
GND
B22
AVDD_DA
—
D/A converter core power supply (3.3V) in an audio multiplex decoder
B3.3V
C21
AVSS_DA
—
D/A converter core ground in an audio multiplex decoder
GND
Pin No.
Pin Name
I/O
Pin Function
1
A0
I
Slave address input A0
2
A1
I
Slave address input A1
3
A2
I
Slave address input A2
4
GND
—
Ground.
5
SDA
I/O
Serial data input/output
6
SCL
I
Serial clock input.
7
WP
I
Write protect input
VCC Connection: Protect effective
GND Connection: Protect uneffective
VCC Connection: Protect effective
GND Connection: Protect uneffective
8
VCC
—
Power supply.
Pin No.
Pin Name
I/O
Pin Function
sheet name
LC-19A1E-BK/WH
5 – 11
2.3. IC2001 (VHiPST8229N-1Y)
2.3.1 Block Diagram
2.3.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
OUT
O
Reset Signal Output Pin.
2
VDD
—
VDD Pin / Voltage Detect Pin
3
GND
—
Ground.
4
N,C
—
No Connection.
5
N,C
—
No Connection.
LC-19A1E-BK/WH
5 – 12
2.4. IC2002 (RH-iXC165WJZZQ)
2.4.1 Block Diagram
2.4.2 Pin Connections and short description
Pin No.
Port
Pin Name
I/O
Pin Function
Seet Name
1
P3_3
SSI
I
System storage data input.
OPEN
2
P3_4
SDA1
I/O
I2C CH1 DATA (EEPROM)
SDA1
3
MODE
I
MODE selecting signal for update (Connecting with VCC through resistance)
MODE
4
P4_3
XCIN
I
XCIN Clock Input
OPEN
5
P4_4
XCOUT
O
XCIN Clock output
OPEN
6
RESET
I
Reset Input
RESET-IN
7
P4_7
XOUT
O
XOUT Clock output
XOUT
8
VSS
-
Ground
VSS
9
P4_6
XIN
I
XIN Clock Input
XIN
10
VCC
-
Power Supply Input
VCC
11
P5_4
CEC_O
O
CEC Output
OPEN
12
P5_3
CEC_I
I
CEC Input
OPEN
13
P5_2
AV_LINK_O
O
AV_LINK Output
OPEN
14
P5_1
AV_LINK_I
I
AV_LINK Input
OPEN
15
P5_0
MUTE_ALL
O
Audio MUTE signal
MUTE_ALL
16
P2_7
LED_R
O
LED Control (Power LED Red)
PowR-LED
17
P2_6
LED_G
O
LED Control (Power LED Green)
PowG-LED
18
P2_5
LED_OPC
O
LED Control (OPC LED)
LED-OPC
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