Sharp LB-1085 (serv.man2) Service Manual / Parts Guide ▷ View online
LB-1085
WIRING & BLOCK DIAGRAM
8 – 4
[The main functions]
Main PWB ......
RSDS8 bit+FRC signal (make pseudo 10 bits) x4 is outputted from LVDS 10bit signal x2ch.
Sub PWB ............
It has the timing generation only for 108 model and amplification of an opposite voltage
signal, and a voltage regulating function of a multi-pixel signal from the gate driver signal
from a main PWB.
RSDS / sauce driver signal is passed through and connected.
∗
Each sub PWB is used for an upper / lower screens.
SUB PWB
for upper part
(CPWBX3949TPZA)
for lower part
SUB PWB
(CPWBX3949TPZA)
Main PWB
(CPWBX3874TPZF)
EEP
R
O
M
write
SPI Flash
CN
Power voltage
generate
CN
FPGA
CS driver
CN
CN
+12V
GND
CN
CN
VCOM buffer
Gate driver signal
Gate driver signal
Gate driver signal
Gate driver signal
Gate driver signal
Gete driver signal
I2C
+12V
RSDS8bit x RGB
(FRC pseudo 10bit)
RSDS8bit x RGB
(FRC pseudo 10bit)
RSDS8bit x RGB
(FRC pseudo 10bit)
RSDS8bit x RGB
(FRC pseudo 10bit)
Sourse driver signal
RSDS8bit x RGB
(FRC pseudo 10bit)
Sourse driver signal
CS voltage
regulator
circuit
CN
I2
C
Multi dot signal
Multi dot signal
Multi dot signal
EEP
R
O
M
write
SPI Flash
CN
CN
FPGA
CN
CN
+12V
GND
CN
CN
I2
C
+ 1
2
V
CN
I2C
LVDS10bit x 2
Signals
for setting
Signals
for setting
VCOM_adjust
EEPROM
write
EEPROM (M)
EEPROM (S)
LVDS10bit_A
CN1
CN2
LVDS10bit_B
Power voltage
Generate
Setting
signal
CN4
CONDOR
(SLAVE)
CONDOR
(MASTER)
Gray scale
voltage
generate
CS driver
CN
CN
VCOM
generate
SC
L
SDK
SC
L
S
DK
+12V
GND
CN3
CN
CN
RSDS8bit×RGB
(FRCpseudo 10 bit)
Multi dot signal
Gate driver signal
Source driver signal
opposite electrode signal (VCOM)
RSDS8bit×RGB
(FRCpseudo 10 bit)
Multi dot signal
Gate driver signal
Source driver signal
opposite electrode signal (VCOM)
opposite electrode
signal (VCOM)
opposite electrode
signal (VCOM)
opposite electrode
signal (VCOM)
opposite electrode
signal (VCOM)
opposite electrode
signal (VCOM)
Gate driver signal
RSDS8bit x RGB
(FRC pseudo 10bit)
Multi dot signal
opposite electrode
signal (VCOM)
RSDS8bit×RGB
(FRCpseudo 10 bit)
Multi dot signal
Gate driver signal
Source driver signal
opposite electrode signal (VCOM)
RSDS8bit×RGB
(FRCpseudo 10 bit)
Multi dot signal
Gate driver signal
Source driver signal
opposite electrode signal (VCOM)
I2C
LCD Panel
Power voltage
generate
CS driver
VCOM buffer
CS voltage
regulator
circuit
Gate driver signal
Gate driver signal
Gate driver signal
RSDS8bit x RGB
(FRC pseudo 10bit)
Sourse driver signal
RSDS8bit x RGB
(FRC pseudo 10bit)
Sourse driver signal
4.
OUTLINE OF LCD CONTR
OL PWB
- SUB PWB CONNECTION
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
SHARP CORPORATION
Information and Communication Systems Group
CS Promotion Center
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
2008 August Printed in Japan
t
2008 BY SHARP CORPORATION
Printed in Japan.
SHARP CORPORATION
Information and Communication Systems Group
CS Promotion Center
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
2008 August Printed in Japan
t
2008 BY SHARP CORPORATION
Printed in Japan.
SHARP CORPORATION
Information and Communication Systems Group
CS Promotion Center
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
2008 August Printed in Japan
t
2008 BY SHARP CORPORATION
Printed in Japan.
