DOWNLOAD Sharp LL-T1803 (serv.man8) Service Manual ↓ Size: 855.88 KB | Pages: 22 in PDF or view online for FREE

Model
LL-T1803 (serv.man8)
Pages
22
Size
855.88 KB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / Complete
File
ll-t1803-sm8.pdf
Date

Sharp LL-T1803 (serv.man8) Service Manual ▷ View online

LL-T1803-E/P
CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 3
2-2. ADJUSTMENT METHOD
MENU
SELECT
MENU
MENU
ADJUSTMENT
AUTO
SELECT
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
buttons
Adjust with
Adjust with
CLOCK
SELECT
PHASE
SELECT
H-POS
SELECT
V-POS
MENU
GAIN CONTROL
AUTO
SELECT
BLACK LEVEL
SELECT
CONTRAST
MENU
WHITE BALANCE
COOL    STD     WARM   USER
SELECT
B-CONTRAST
SELECT
SELECT
G-CONTRAST
R-CONTRAST
MENU
MODE SELECT
OSD H-POSITION
SELECT
OSD V-POSITION
SELECT
INPUT
SELECT
400 LINES
SELECT
SCALING
SELECT
LANGUAGE
"SELECT"
Backlight brightness adjustment
Version display (for servicing)
While pressing
The software version is displayed.
With the version displayed, the button operations are disabled.
, turn on the power.
All reset of the adjustment values
Adjustment lock, and cancel of lock
Display adjustment
Adjust with
While pressing
While pressing
buttons.
, turn on the power. 
, turn on the power. 
Diagnostics (for servicing)
SELECT
While pressing
To terminate the diagnostics, turn off the power.
When     button is pressed, the color is changed in the following sequence. 
Red 
3
 Green 
3
 Blue 
3
 Yellow 
3
 Water-blue 
3
 Purple 
3
 White
, turn on the power.
SELECT
MENU
LL-T1803-E/P
DISASSEMBLY AND ASSEMBLY
3 – 1
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
1.
LCD SECTION AND BASE SECTION SEPARA-
TION
1.
Remove the hinge cover 
1
.
2.
Remove four screws 
2
, and separate the LCD section 
3
 from the
base section 
4
2.
INVERTER PWB AND LCD MODULE DISASSEM-
BLY
1.
Remove three screws. 
Remove the front panel 
2
 and remove the connector 
3
.
2.
Remove five screws 
4
, and separate the rear panel 
5
 and the
LCD section 
6
Remove connectors 
7
 • 
8
.
3.
Remove two connector disconnection prevention sheets 
9
, and
disconnect six connectors 
F
. Remove two screws 
G
, and remove
the inverter PWB 
H
4.
Remove eight screws 
J
 from the LCD module 
I
, and remove the
LCD angles 
K
 
L
.
3.
I/F PWB DISASSEMBLY
1. Remove four screws 
1
, and remove the board bracket 
2
2. Remove connectors 
3
 • 
4
 • 
5
.
3. Remove four hex screws 
6
 and six screws 
7
, and remove the I/F
PWB 
8
2
2
1
3
4
1
5
7
6
9
12
14
14
13
15
16
14
14
14
14
11
12
9
10
8
2
4
4
4
4
3
1
1
1
2
6
7
7
8
3
5
4
7
1
LL-T1803-E/P
BLOCK DIAGRAM
4 – 1
CHAPTER 4. BLOCK DIAGRAM
LCD UNIT
LAMP
15 inch LCD
LAMP
INVERTER
INTERFACE
UNIT
TMDS DATA, CLOCK
RGB,H/V
INPUT
(Digital)
(Analog)
KEY-SWITCH UNIT
AC100V
INPUT
AC ADAPTER
LL-T1803-E/P
BLOCK DIAGRAM
4 – 2
UNIT TERMINAL
1
JP1 (LVDS to LCD Panel)
Used Connector : HEADER_15x2/SM
2
JP2 (To Key Switch Board Terminal)
Used Connector : PH_9
3
JP4 (To Inverter Terminal)
Used Connector : PH_6
4
JP7 (Power Supply Input Terminal Form AC
Adapter)
Uesd Connector : POWER_JACK20_B
5
JP3 (Analog Signal Input Terminal)
Used Connector : D-sub 15P (WIESON)
6
J1 (Digital Signal Input Terminal)
Used Conector : DVI-D 24P (FOXCONN)
Pin No.
Symbol
Functin
1
FR0P
LVDS differential data
2
FR1P
LVDS differential data
3
FR0M
LVDS differential data
4
FR1M
LVDS differential data
5
FR2P
LVDS differential data
6
FR3P
LVDS differential data
7
FR2M
LVDS differential data
8
FR3M
LVDS differential data
9
FCLKP
LVDS differential clock
10
LCDS_GND
GND
11
FCLKM
LVDS differential clock
12
SR0P
LVDS differential data
13
LCDS_GND
GND
14
SR0M
LVDS differential data
15
SR1P
LVDS differential data
16
SR2P
LVDS differential data
17
SR1M
LVDS differential data
18
SR2M
LVDS differential data
19
SR3P
LVDS differential data
20
SCLKP
LVDS differential clock
21
SR3M
LVDS differential data
22
SCLKM
LVDS differential clock
23
OPEN
24
GND
GND
25
GND
GND
26
GND
GND
27
GND
GND
28
VCC_LCD
+12V Power Supply
29
VCC_LCD
+12V Power Supply
30
VCC_LCD
+12V Power Supply
Pin No.
Symbol
1
SELECT
Select
2
MENU
Menu
3
SOURCE_SEL
Input
4
UP
Up
5
DOWN
Down
6
SOFT_START
Soft Power
7
LED_AMBER
LED Orange
8
LED_GREEN
LED Green
9
GND
GND
Pin No.
Symbol
Functin
1
+12V
+12V IN
2
+12V
+12V IN
3
GND
GND
4
GND
GND
5
BL_PWM
Brighness Control
6
BL_ON_OFF#
Back Light ON/OFF
Pin No.
Symbol
Functin
1
GND
GND
2
+12V
+12V IN
3
GND
GND
Pin No.
Symbol
Functin
1
R_IN
Analog RED Signal
2
G_IN
Analog GREEN Signal
3
B_IN
Analog BLUE Signal
4
GND
GND
5
GND
GND
6
GND
GND
7
GND
GND
8
GND
GND
9
A_DDC_+5V
DDC
10
GND
GND
11
GND
GND
12
VGA_SDA
DDC
13
VGA_HS
H-SYNC
14
VGA_VS
V-SYNC
15
VGA_SCL
DDC
Pin No.
Symbol
Functin
1
D2-
TMDS differential data
2
D2+
TMDS differential data
3
D2/4
GND
4
D4-
TMDS differential data
5
D4+
TMDS differential data
6
DDC CLK
DDC clock
7
DDC DATA
DDC data
8
VSYNC
V-SYNC
9
D1-
TMDS differential data
10
D1+
TMDS differential data
11
D1/3
GND
12
D3-
TMDS differential data
13
D3+
TMDS differential data
14
+5V
+5V 
15
GNDA
GND
16
PLUG
Hot Plug Detect
17
D0-
TMDS differential data
18
D0+
TMDS differential data
19
D0/5
GND
20
D5-
TMDS differential data
21
D5+
TMDS differential data
22
TMDS CLK
GND
23
TMDS CLK+
TMDS differential clock
24
TMDS CLK-
TMDS differential clock
Page of 22
Display

Click on the first or last page to see other LL-T1803 (serv.man8) service manuals if exist.