Read Sharp LC-M3700 (serv.man9) Service Manual online
40
LC-M3700
LC-M3710
LC-M3710
40-1
40-2
Pin No
.
Pin Name
I/O
Pin Function
1
G
ND_OUT
O
GND terminal only for RGB_OUT output stages.
2
YSYM2
I
Control input terminal of YS2/YM2.
VM is turned off if an input level reaches the level of YM.
3
GND_SIG
—
GND terminal of Y-component and a RGB system.
4
B2_IN
I
Signal input terminal of an analog RGB 2.
5
G2_IN
I
6
R2_IN
I
7
YSYM1
I
Control input terminal of YS1/YM1.
VM is turned off if an input level reaches the level of YM.
8
B1_IN
I
Signal input terminal of an analog RGB 1.
9
G1_IN
I
10
R1_IN
I
11
PABL_FIL
Peak hold terminal of Peak ABL.
12
DPDT_OFF
I
Terminal which carries out signal section detection of dynamic picture (black
extension) operation and the rate of direct-current transmission to un-operating .
13
YF_OFF
I
Terminal for turning off VM, sharpness, and colour.
An input level corresponds with three values.
Ë
VHiCXA2150Q-1Q(ASSY:IC8802)
RGB processor
»
Block Diagram
»
Pin Function
Pin No
.
Pin Name
I/O
Pin Function
14
VM_OUT
O
VM output terminal.
The differentiation waveform of Y signal is outputted by positive.
15
VM_MOD
I
Terminal which modulates VM level.It becomes an output 0 less than 1.5V.
It becomes modulation by 1.5-3.5V.It becomes demodulation more than by 3.5V.
16
CLP_C
Connection terminal of the capacitor for Y-system clamp.
17
BPH
A capacitor is connected to black detection of dynamic picture(black extension) at GND.
18
IREF_YC
Terminal for reference current creation of Y-component signal processing system.
19
Vcc5
—
Power supply terminal of Y-component system, a RGB system, and the I2C
BUS section.
20
Y_IN
I
Signal input terminal of external YCbCr.
21
CB_IN
I
22
CR_IN
I
23
F0
I
F
ree run frequency setting terminal.
24
F1
I
25
SDA
I/O
SDA (Serial Data) input terminal of a I2C BUS standard.
26
SCL
I
SCL
Å
iSerial Clock
Å
j input terminal of a I2C BUS standard.
27
SCP
O
S
and castle pulses output terminal.
H of Abbreviation 0-2.5V and a VBLK pulse are overlapped on the clamp pulse
of Abbreviation 0-5V, and it is outputted to them.
28
HS_IN
I
HSYNC input terminal. It inputs by the phase of a sync.
29
VREG5
Shant regulator of 5V is formed by connecting NPN-Tr for feedback to 30pin
30
VBIAS
VBIAS and 29pin VREG5 by external.
31
IREF_HV
H-system and V-system terminal for reference current creation.
32
AFC_FIL
AFC lug-lead filter terminal.
33
CERA
Terminal for 2.7MHz ceramic oscillation segment connection.
34
HPROT
I
Input terminal of the hold down signal of HD output.
If this terminal is carried out more than 2V more than 7V cycles, a hold down function will
work, HD output is held by Hi-Z, and it acts as all the Blanc kings of the RGB output.
35
VPROT
I
V-protection input terminal.
When a protection function works, a RGB output serves as all the blankings,
and "1" is outputted to a status register "VNG."
36
HCOMP_IN
I
Voltage input terminal for high-pressure change compensation.
The high-pressure compensation about DC amplitude of an EW_DRV signal
and the phase of a H_DRV signal is performed.
37
VCOMP_IN
I
Voltage input terminal for high-pressure change compensation.
The high-pressure compensation about the amplitude of a V_DRV signal is performed.
38
L2_FIL
Filter terminal for 2nd loops of AFC.
39
HP_IN
I
Input terminal of H deviation pulse for H-AFC.
40
H_DRV
O
Output terminal of H-drive signal.
41
GND_H
—
GND terminal of a horizontal deviation (H) system.
42
VS_IN
I
VSYNC input terminal.
43
HC_PARA
O
Wide use V-parabola wave output terminal.
44
GND_V
—
GND terminal of a vertical deviation (V) system.
45
MP_PARA
O
Wide use V-parabola wave output terminal.
46
DF_PARA
O
47
EW_DRV
O
V-parabola wave output terminal.
It is used for compensation of horizontal amplitude and horizontal pin distortion.
48
V_OSC
Terminal for saw tooth wave creation.
49
V_AGC
Sample hold terminal for AGC which makes amplitude of V-saw tooth wave regularity.
50
VSAW0
O
Output terminal of V-saw tooth wave (VSAW0).
51
VSAW1
O
Output terminal of V-saw tooth wave (VSAW1).
52
V_DRV-
O
Output terminal of V-saw tooth wave.
53
V_DRV+
O
V_DRV- and V saw tooth wave output terminal of reverse polarity.
54
VTIM
O
V-timing pulse output terminal.It is the plus terminal positive pulse of 0-5V.
The High period is in agreement with the position of VBLK of a RGB output.
55
Vcc9
—
Power supply terminal of a vertical deviation (V) system.
56
ABL_IN
I
Terminal of the control signal input of ABL.It operates as an average value type.
57
ABL_FIL
Capacitor is connected in order to form LPF to an ABL_IN incoming signal.
58
IK_IN
I
A
reference pulse is returned to this terminal.
59
SABL_IN
I
Signal input terminal for SABL compensation.
60
PRE_RGB
O
Object for high-pressure drawing bend compensation, and a signal output
terminal for SABL compensation.
The signal which MIX(ed) the RGB signal is outputted.
61
VCC_OUT
—
Power supply terminal for RGB output stages.
62
B_OUT
O
RGB signal output terminal.Signal of 2.6 Vp-p is outputted by 100IRE.
63
G_OUT
O
64
R_OUT
O
»
Pin Function
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