DOWNLOAD Sharp LC-19A1E (serv.man5) Service Manual ↓ Size: 9.03 MB | Pages: 31 in PDF or view online for FREE

Model
LC-19A1E (serv.man5)
Pages
31
Size
9.03 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Major IC Informations
File
lc-19a1e-sm5.pdf
Date
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LC-19A1E-BK/WH
5 – 21
2.10. IC301 (VHiNJM2750M-1)
2.10.1 Block Diagram
2.10.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
IN1a
I
Ach Input 1.
2
CNT1
I
Switch Control Terminal 1.
3
IN2a
I
Ach Input 2.
4
CNT2
I
Switch Control Terminal 2.
5
IN4a
I
Ach Input 4.
6
IN1b
I
Bch Input 1.
7
IN2b
I
Bch Input 2.
8
IN4b
I
Bch Input 4.
9
IN3b
I
Bch Input 3.
10
(N.C)
-
N.C.
11
OUTb
O
Bch OUT.
12
Vref
-
Reference Voltage.
13
IN3a
I
Ach Input 3.
14
V+
-
Power supply. (9V)
15
OUTa
O
Ach OUT.
16
GND
-
Ground.
LC-19A1E-BK/WH
5 – 22
2.11. IC302 (VHiWM8983++-1Y)
2.11.1 Block Diagram
2.11.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
LIP
I
Left MIC pre-amp positive input
2
LIN
I
Left MIC pre-amp negative input
3
L2/GPIO2
I
Left channel line input/secondary mic pre-amp positive input/GPIO2 pin
4
RIP
I
Right MIC pre-amp positive input
5
RIN
I
Right MIC pre-amp negative input
6
R2/GPIO3
I
Right channel line input/secondary mic pre-amp positive input/GPIO3 pin
7
LRC
I
DAC and ADC sample rate clock
8
BCLK
I
Digital audio bit clock
9
ADCDAT
O
ADC digital audio data output
10
DACDAT
I/O
DAC digital audio data input
11
MCLK
I
Master clock input
12
DGND
-
Digital ground
13
DCVDD
-
Digital core logic supply
14
DBVDD
-
Digital buffer (I/O) supply
15
CSB/GPIO1
I
3-Wire control interface chip Select / GPIO1 pin
16
SCLK
I
3-Wire control interface clock input / 2-wire control interface clock input
17
SDIN
I/O
3-Wire control interface data input / 2-Wire control interface data input
18
MODE
I
Control interface selection
19
AUXL
I
Left auxillary input
20
AUXR
I
Right auxillary input
21
OUT4
O
right line output or mono mix output
22
OUT3
O
mono or left line output
23
ROUT2
O
Headphone or line output right 2
24
AGND2
-
Analogue ground (feeds ROUT2/LOUT2 and OUT3/OUT4)
25
LOUT2
O
Headphone or line output left 2
26
AVDD2
-
Analogue supply (feeds output amplifiers ROUT2/LOUT2 and OUT3/OUT4)
27
VMID
-
Decoupling for ADC and DAC reference voltage
28
AGND1
-
Analogue ground (feeds all input amplifiers, PLL, ADC and DAC, internal bias circuits, output amplifiers 
LOUT1, ROUT1)
29
ROUT1
O
Headphone or line output right 1
30
LOUT1
O
Headphone or line output left 1
31
AVDD1
-
Analogue supply (feeds all input amplifiers, PLL, ADC and DAC, internal bias circuits, output amplifiers 
LOUT1, LOUT2)
32
MICBIAS
O
Microphone bias
LC-19A1E-BK/WH
5 – 23
2.12. IC303 (VHiYDA147SZ-1Y)
2.12.1 Block Diagram
2.12.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
NC
-
No connection
2
NC
-
No connection
3
PVDDREG
I
Power supply terminal for regulator
4
AVDD
O
Regulator output terminal (3.3V)
5
INLP
I
Analog input terminal (Lch+)
6
INLM
I
Analog input terminal (Lch-)
7
VREF
-
Reference voltage terminal
8
INRM
I
Analog input terminal (Rch+)
9
INRP
I
Analog input terminal (Rch-)
10
AVSS
-
Ground terminal for analogue
11
PLIMIT
I
Power limit setting terminal
12
NC
-
No connection
13
PVDDPR
I
Power supply terminal for digital amplifier output (Rch+)
14
PVDDPR
I
Power supply terminal for digital amplifier output (Rch+)
LC-19A1E-BK/WH
5 – 24
2.13. IC304 (VHi7WH157FK-1Y)
2.13.1 Pin Connections and short description
15
OUTPR
O
Digital amplifier output terminal (Rch+)
16
OUTPR
O
Digital amplifier output terminal (Rch+)
17
OUTPR
O
Digital amplifier output terminal (Rch+)
18
PVSSR
-
Ground terminal for digital amplifier output (Rch)
19
PVSSR
-
Ground terminal for digital amplifier output (Rch)
20
OUTMR
O
Digital amplifier output terminal (Rch-)
21
OUTMR
O
Digital amplifier output terminal (Rch-)
22
OUTMR
O
Digital amplifier output terminal (Rch-)
23
PVDDMR
-
Power supply terminal for digital amplifier output (Rch-)
24
PVDDMR
-
Power supply terminal for digital amplifier output (Rch-)
25
NC
-
No connection
26
SLEEPN
I
Sleep control terminal
27
PROTN
O
Error flag output terminal
28
MUTEN
I
Mute control terminal
29
CKOUT
O
Clock output terminal for synchronization
30
CKIN
I
External clock input terminal
31
NCDRC0
I
No clip /DRC1/DRC2 Mode selection terminal 0
32
NCDRC1
I
No clip /DRC1/DRC2 Mode selection terminal 1
33
GAIN0
I
GAIN Setting terminal 0
34
GAIN1
I
GAIN Setting terminal 1
35
NC
-
No connection
36
NC
-
No connection
37
PVDDML
-
Power supply terminal for digital amplifier output (Lch-)
38
PVDDML
-
Power supply terminal for digital amplifier output (Lch-)
39
OUTML
O
Digital amplifier output terminal (Lch-)
40
OUTML
O
Digital amplifier output terminal (Lch-)
41
OUTML
O
Digital amplifier output terminal (Lch-)
42
PVSSL
-
Ground terminal for digital amplifier output (Lch+)
43
PVSSL
-
Ground terminal for digital amplifier output (Lch+)
44
OUTPL
O
Digital amplifier output terminal (Lch+)
45
OUTPL
O
Digital amplifier output terminal (Lch+)
46
OUTPL
O
Digital amplifier output terminal (Lch+)
47
PVDDPL
-
Power supply terminal for digital amplifier output (Lch+)
48
PVDDPL
-
Power supply terminal for digital amplifier output (Lch+)
Pin No.
Pin Name
I/O
Pin Function
1
 A
I
Input signal A
2
 B
I
Input signal B
3
 Y
O
Output signal Y
4
 GND
-
Ground
5
 
Y
O
Inverted output signal Y
6
 SELECT
I
Logic select pin
7
 
ST
I
Logic strobe pin
8
 VCC
-
Power supply
Pin No.
Pin Name
I/O
Pin Function
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