XV-C2E (serv.man4). Service manual part three - Sharp Projector Service Manual (repair manual). Page 9

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XV-C2E
32
2) Terminals
Terminal No.
Symbol
Remarks
43
XCLP2
44
XCLP1
45
RGB GAIN
46
R GAIN
47
B GAIN
48
GND
49
IREF
50
V
CC
4
51
GCADET B
52
GCADET G
53
GCADET R
54
SIG SEL
55
GND
56
SH4
57
SH3
58
SH2
61
SH1
62
PV
CC
63
SH IN
64
GND
Reference signal pulse input
terminal.
When it is set at LOW, the signal
level becomes reference level.
Input level
HIGH  
>
4V
LOW   
<
1V
Clamp pulse input terminal.
When it is set at LOW, clamp
becomes effective.
Input level
HIGH  
>
4V
LOW   
<
1V
Variable gain amplifier control
terminal common for RGB signals.
Variable gain amplifier control
terminal common for R signal.
It is internally preset at 3.3V.
Variable gain amplifier control
terminal common for B signal.
It is internally preset at 3.3V.
GND terminal.
Terminal to set the current of
sample hold circuit.
5V power supply terminal.
B GCA circuit clamp detection
terminal.
G GCA circuit clamp detection
terminal.
R GCA circuit clamp detection
terminal.
Switching terminal of signal to be
inputted in sample hold circuit.
When it is set at HIGH, the R and B
signals are selected and when it is
set at LOW, the G signal is se-
lected.
Input level
HIGH  
>
4V
LOW   
<
1V
GND terminal
Sample hold pulse input terminal.
Input level
HIGH  
>
3.0V
LOW   
<
1.0V
When it is set at HIGH, sampling
becomes effective and when it is
set at LOW, holding becomes
effective.
5V power supply terminal.
Terminal for input in sample/hold
circuit.
GND terminal.
Terminal No.
Symbol
Remarks
B signal clamp detection terminal.
G signal clamp detection terminal.
R signal clamp detection terminal.
Black side voltage gain control
terminal common for RGB signals.
Black side voltage gain control
terminal for R signal.
It is internally preset at 3.3V.
Black side voltage gain control
terminal for B signal.
It is internally preset at 3.3V.
White side voltage gain control
terminal common for RGB signals.
White side voltage gain control
terminal for R signal.
It is internally preset at 3.3V.
White side voltage gain control
terminal for B signal.
It is internally preset at 3.3V.
White side voltage gain changing
point control common for RGB
signals.
White side voltage gain changing
point control for R signal.
It is internally preset at 3.3V.
White side voltage gain changing
point control for B signal.
It is internally preset at 3.3V.
Black side voltage gain changing
point control common for RGB
signals.
Black side voltage gain changing
point control for R signal.
It is internally preset at 3.3V.
Black side voltage gain changing
point control for B signal.
It is internally preset at 3.3V.
65
B CLAMP
66
G CLAMP
67
R CLAMP
68
RGB GAM
GAIN1
69
R GAM
GAIN1
70
B GAM
GAIN1
71
RGB GAM
GAIN2
72
R GAM
GAIN2
73
B GAM
GAIN2
74
RGB GAM
CTR2
75
R GAM
CTR2
76
B GAM
CTR2
77
RGB GAM
CTR1
78
R GAM
CTR1
79
B GAM
CTR1
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