Sharp LC-37GE1E (serv.man8) Service Manual ▷ View online
LC-37GE1E
8 – 13
123
656I62
I
Digital (luminance) input
124
656I72
I
Digital (luminance) input
125
CLKIN2
I
Clock input [max. 81.0 MHz]
126
UVIN0
I
Digital (chrominance) input [LSB]
127
UVIN1
I
Digital (chrominance) input
128
UVIN2
I
Digital (chrominance) input
129
UVIN3
I
Digital (chrominance) input
130
VSSP8
S
Supply digital core (0 V)
131
VDDP8
S
Supply digital core (3.3 V)
132
VDD8M
S
Supply memory (1.8 V)
133
VSSD60
S
Supply digital core (0 V)
134
VSSD61
S
Supply digital core (0 V)
135
VDDD60
S
Supply digital core (1.8V)
136
VDDD61
S
Supply digital core (1.8 V)
137
UVIN4
I
Digital (chrominance) input
138
UVIN5
I
Digital (chrominance) input
139
UVIN6
I
Digital (chrominance) input
140
UVIN7
I
Digital (chrominance) input [MSB]
141
NC
-
No Connection
142
656I0/YIN0
I
Digital (luminance) input [LSB]
143
VSSP9
S
Supply digital pad (0 V)
144
VDDP9
S
Supply digital pad (3.3 V)
LC-37GE1E
8 – 14
8. IC1710: RH-IXB763WJZZ
FPGA
Pin No.
Pin Name
I/O
Pin Function
Net Name
1
EXP[8]
O
REG2 Light Control System Identify
REG2
2
EXP[9]
O
REG External Sync Identify
REG
3
EXP[10]
O
QS Parameter
TEMP3
4
EXP[11]
O
QS Parameter
TEMP2
5
EXP[12]
O
QS Parameter
TEMP1
6
EXP[13]
O
QS Parameter
QSSET
7
EXP[14]
O
LED SLEEP
LEDSLP
8
EXP[15]
O
LED OPC
LEDOPC
9
VCCIO1 3.3V
-
Power Supply 3.3V.
3.3V
10
GND
-
Ground.
GND
11
GND
-
Ground.
GND
12
PCLK
I
Panel Clock 74.25MHz
PCLK
13
VCCINT 3.3V
-
Power Supply 3.3V.
3.3V
14
I/O
-
GND*
open
15
I/O
-
GND*
open
16
I/O
-
GND*
open
17
OSCOUT
O
Light Control Clock Output
OSC
18
I/O
-
GND*
open
19
OFLOUT
O
Light Control PWM Output
OFL1
20
I/O
-
GND*
OFL2
21
I/O
-
GND*
open
22
(TMS)
I
Inline Program JTAG TMS/ OPEN
TMS
23
(TDI)
I
Inline Program JTAG DataIn / OPEN
TDI
24
(TCK)
I
Inline Program JTAG Clock/ OPEN
TCK
25
(TDO)
O
Inline Program JTAG DataOut / OPEN
TDO
26
I/O
-
GND*
open
27
I/O
-
GND*
open
28
I/O
-
GND*
open
29
I/O
-
GND*
open
30
I/O
-
GND*
open
31
VCCIO1 3.3V
-
Power Supply 3.3V.
3.3V
32
GND
-
Ground.
GND
33
I/O
-
GND*
open
34
EXP[16]
O
MSP<FmSdata>[amp ]FRC Reset Note 2)
RESET_A
35
EXP[17]
O
DTU-CVBS/ (S Terminal Y
⋅CVBS) Switching
G-ONSYNC
36
EXP[18]
O
DTV/PC/HDMI Switching
DTVPC
37
EXP[19]
O
DTV/PC/HDMI Switching
DTVHDMI
38
EXP[20]
O
E2PROM WP for HDMI
HDMI_WP
39
EXP[21]
O
Panel Flip Horizontal
LCDLR
40
EXP[22]
O
Panel Flip Vertical
LCDUD
41
EXP[23]
O
Panel 50/60Hz
FRAME
42
I/O
-
GND*
open
43
I/O
-
GND*
open
44
I/O
-
GND*
open
45
VCCIO1 3.3V
-
Power Supply 3.3V.
3.3V
46
GND
-
Ground.
GND
47
EXP[24]
O
No used.
open
48
EXP[25]
O
No used.
open
49
EXP[26]
O
CS1
CS1
50
EXP[27]
O
P-CON1
51
EXP[28]
O
BANK
BANK
52
EXP[29]
O
No used.
open
53
EXP[30]
O
No used.
open
54
EXP[31]
O
Reset trigger
open
55
I/O
-
GND*
open
56
I/O
-
GND*
open
57
I/O
-
GND*
open
58
I/O
-
GND*
open
59
VCCIO2 3.3V
-
Power Supply 3.3V.
3.3V
60
GND
-
Ground.
GND
61
I/O
-
No used.
open
62
GCLR
I
VGC_Reset_Line
RESET_N
LC-37GE1E
8 – 15
63
VCCINT 3.3V
-
3.3V
3.3V
64
SCK
I
from VGC
FPGA_SCK
65
GND
-
Ground.
GND
66
SEN
I
from VGC
FPGA_SDK
67
SDAI
I
from VGC
FPGA_SDA
68
I/O
-
GND*
open
69
SDAO
O
from VGC (GND*)
FPGA_SDAO
70
I/O
-
GND*
open
71
I/O
-
GND*
open
72
I/O
-
GND*
open
73
I/O
-
GND*
open
74
I/O
-
GND*
open
75
I/O
-
GND*
open
76
I/O
-
GND*
open
77
I/O
O
VGCwrite (Open Drain)
BOOT
78
I/O
-
GND*
open
79
GND
-
Ground.
GND
80
VCCIO2 3.3V
-
Power Supply 3.3V.
3.3V
81
I/O
I
VSYNC_OSC.
VSYNC_OSC
82
I/O
I
HSYNC_OSC.
HSYNC_OSC
83
I/O
-
GND*
open
84
I/O
-
GND*
open
85
EXP[0]
O
DTI2CSEL
DTI2CSEL
86
EXP[1]
O
DTM_RESET.
DTM_RESET
87
EXP[2]
O
DTU_ON.
DTU_ON
88
EXP[3]
O
232C ON/OFF SW
I REM-SW
89
EXP[4]
O
STB(LAMP ON)
STB
90
EXP[5]
O
S2_MUTE.
S2_MUTE
91
EXP[6]
O
ANT+5V ON.
ANT+5V ON
92
EXP[7]
O
S_MUTE.
S_MUTE
93
GND
-
Ground.
GND
94
VCCIO2 3.3V
-
Power Supply 3.3V.
3.3V
95
I/O
-
GND*
open
96
I/O
-
GND*
open
97
I/O
-
GND*
open
98
I/O
-
GND*
open
99
I/O
-
GND*
open
100
I/O
-
GND*
open
LC-37GE1E
8 – 16
9. IC1712: VHIMP1410ES-1
Step Down Converter.
10. IC1706: VHIMP1583++-1
Step Down Converter
Pin No.
Pin Name
I/O
Pin Function
1
BS
I
High-Side Gate Drive Boost input.
BS supplies the drive for the high-side n-channel MOSFET switch.
Connect a 10nF or greater capacitor from SW to BS to power the high-side switch.
BS supplies the drive for the high-side n-channel MOSFET switch.
Connect a 10nF or greater capacitor from SW to BS to power the high-side switch.
2
IN
I
Power input.
IN supplies the power to the IC,as well as the step-down converter switches.
Drive IN with a 4.75V to 15V power source.
Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
See input Capacitor.
IN supplies the power to the IC,as well as the step-down converter switches.
Drive IN with a 4.75V to 15V power source.
Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
See input Capacitor.
3
SW
O
Power Switching Output.
SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to the output load.
Note that a capacitor is required from SW to BS to power the high-side switch.
SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to the output load.
Note that a capacitor is required from SW to BS to power the high-side switch.
4
GND
-
Ground.
5
FB
I
Feedback input.
FB senses the output voltage to regulate that voltage.
Drive FB with a resistive voltage divider from the output voltage.
The feedback threshold is 1.22V.
See Setting the Output Voltage.
FB senses the output voltage to regulate that voltage.
Drive FB with a resistive voltage divider from the output voltage.
The feedback threshold is 1.22V.
See Setting the Output Voltage.
6
COMP
-
Compensation Node.
COMP is used to compensate the regulation control loop.
Connect a series RC network from COMP to GND to compensate the regulation control loop.
See Compensation.
COMP is used to compensate the regulation control loop.
Connect a series RC network from COMP to GND to compensate the regulation control loop.
See Compensation.
7
EN
I
Enable input.
EN is a digital input that turns the regulator on or off.
Drive EN high to turn on the regulator,drive it low to turn it off.
For automatic startup,leave EN unconnected.
EN is a digital input that turns the regulator on or off.
Drive EN high to turn on the regulator,drive it low to turn it off.
For automatic startup,leave EN unconnected.
8
N/C
-
No Connect.
Pin No.
Pin Name
I/O
Pin Function
1
BS
I
High-Side Gate Drive Boost lnput.
BS supplies the drive for the high-side n-channel MOSFET Switch.
Connect a 4.7nF or greater capacitor from SW to BS to power the high side switch.
BS supplies the drive for the high-side n-channel MOSFET Switch.
Connect a 4.7nF or greater capacitor from SW to BS to power the high side switch.
2
IN
I
Power input.
IN supplies the power to the IC, as well as the step-down converter switches.
Drive IN with a 4.75V to 23V power source.
Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
See Input Capacitor.
IN supplies the power to the IC, as well as the step-down converter switches.
Drive IN with a 4.75V to 23V power source.
Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
See Input Capacitor.
3
SW
O
Power Switching Output.
SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to the output load.
Note that a capacitor is required from SW to BS to power the high-side switch.
SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to the output load.
Note that a capacitor is required from SW to BS to power the high-side switch.
4
GND
-
Ground. (Note: Connect the exposed pad on backside to Pin4).
5
FB
I
Feedback input.
FB senses the output voltage to regulate that voltage.
Drive FB with a resistive voltage divider from the output voltage.
The feedback threshold is 1.222V.
See Setting the Output Voltage.
FB senses the output voltage to regulate that voltage.
Drive FB with a resistive voltage divider from the output voltage.
The feedback threshold is 1.222V.
See Setting the Output Voltage.
6
COMP
I
Compensation Node.
COMP is used to compensate the regulation control loop.
Connect a series RC network from COMP to GND to compensate the regulation control loop.
In same cases, an additional capacitor from COMP to GND is required.
See Compensation.
COMP is used to compensate the regulation control loop.
Connect a series RC network from COMP to GND to compensate the regulation control loop.
In same cases, an additional capacitor from COMP to GND is required.
See Compensation.
7
EN
I
Enable input
EN is a digital input that turns the regulator on or off.
Drive EN high to turn on the regulator, drive it low to tum it off .
For automatic startup, leave EN unconnected.
EN is a digital input that turns the regulator on or off.
Drive EN high to turn on the regulator, drive it low to tum it off .
For automatic startup, leave EN unconnected.
8
SS
I
Soft Start Control input.
SS controls the soft start period.
Connect a capacitor from SS to GND to set the soft-start period.
A 0.1
SS controls the soft start period.
Connect a capacitor from SS to GND to set the soft-start period.
A 0.1
μF capacitor sets the soft-start period to l0ms
To disable the soft-start featur CIeave SS unconnected.
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