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Model
LL-T155A (serv.man2)
Pages
20
Size
450 KB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / LLT155A
File
ll-t155a-sm2.pdf
Date

Sharp LL-T155A (serv.man2) Service Manual ▷ View online

Unit terminals
 LCD SIGNAL INPUT
Used connector : FX8-60P-SV (HIROSE)
Pin No. Symbol
Function
1
GND
GND
2
RB0
R E D   E v e n - n u m b e r   p i c t u r e
element signal
(LSB)
3
RB1
RED
4
RB2
RED
5
RB3
RED
6
RB4
RED
7
RB5
RED
(MSB)
8
GND
GND
9
GB0
GREEN Even-number  picture
element signal
(LSB)
10
GB1
GREEN
11
GB2
GREEN
12
GB3
GREEN
13
GB4
GREEN
14
GB5
GREEN
(MSB)
15
GND
GND
16
BB0
B L U E   E v e n - n u m b e r   p i c t u r e
element signal
(LSB)
17
BB1
BLUE
18
BB2
BLUE
19
BB3
BLUE
20
BB4
BLUE
21
BB5
BLUE
(MSB)
22
GND
GND
23
RA0
R E D   O d d - n u m b e r   p i c t u r e
element signal
(LSB)
24
RA1
RED
25
RA2
RED
26
RA3
RED
27
RA4
RED
28
RA5
RED
(MSB)
29
GND
GND
30
GA0
GR EEN O dd -nu mbe r pi cture
element signal
(LSB)
31
GA1
GREEN
32
GA2
GREEN
33
GA3
GREEN
34
GA4
GREEN
35
GA5
GREEN
(MSB)
36
GND
GND
37
BA0
B L U E   O d d - n u m b e r   p i c t u r e
element signal
(LSB)
38
BA1
BLUE
39
BA2
BLUE
40
BA3
BLUE
41
BA4
BLUE
42
BA5
BLUE
(MSB)
43
GND
GND
44
REV1
(GND)
45
GND
GND
46
Vsync
Vertical synchronizing signal
47
Hsync
Horizontal synchronizing signal
48
DE
Data enable signal
49
GND
GND
50
GND
GND
51
CKB
Sampling clock
Pin No. Symbol
Function
52
CKA
Sampling clock
53
GND
GND
54
GND
GND
55
REV2
(GND)
56
REV3
(GND)
57
Vcc
+5V power supply
58
Vcc
+5V power supply
59
Vcc
+5V power supply
60
Vcc
+5V power supply
 JP5 (To Inverter Terminal)
Used connector : PH5PS (JST)
Pin No.
Symbol
Function
1
ON / OFF
HIGH = ON, LOW = OFF
2
NC
3
BRIGHT
Brightness control of inverter
4
GND
GND
5
+12V
B + of inverter
 JP4 (To Key Switch Board Terminal)
Used connector : PH8PS (JST)
Pin No.
Symbol
Function
1
NC
2
GND
3
LED  1
4
LED  2
5
DOWN
6
+
7
8
UP
 CN-JP5 (Power Supply Input Terminal)
Used connector : PH6PS (JST)
Pin No.
Symbol
Function
1
+12V
+12V supply from power BD
2
+12V
+12V supply from power BD
3
GND
GND
4
GND
GND
5
NC
6
Vcc
+5V supply from power BD
 J1 (Signal Input Terminal)
Used connector : PH12PS (JST)
Pin No.
Symbol
Function
1
SCL
DDC
2
SDA
DDC
3
5V
DDC
4
V-SYNC-
5
H-SYNC
6
GND
7
BLUE
8
GND
9
GREEN
10
GND
11
RED
12
GND
CHAPTER7. APPEARANCE AND DISASSEMBLY DRAWING OF MECHANISMS
No.
Part name
Part code
New/Conti.
1
Panel, front
New
2
Panel, rear
New
3
Base cover
New
4
Arm, front
New
5
Arm, rear
New
6
Wire ass’y
10 LCD metal ass’y
New
17 Interface PWB
New
19 Screw
20 Power PWB
New
21 Base controller PWB
22 Wire ass’y
New
23 LCD unit
New
24 Key frame
New
26 Rubber, base
29 T-screw
31 Switch, tact
32 LED
33 Screw
34 Connector
35 Connector
36 Screw
37 PCB ass’y
New
41 Connector
43 Screw
44 T-screw
45 Cable ass’y
New
No.
Part name
Part code
New/Conti.
46 VR
49 Heat sink-1
50 Heat sink-2
51 T-screw
52 Connector
53 Connector
56 T-screw
57 LED holder
58 Switch, locker
59 Connector
60 Wire ass’y
61 Wire ass’y
New
62 Wire ass’y
63 Shrink tube
67 Screw
70 Screw
New
77 USB A and B
New
78 Connector
New
79 Connector
New
84 Conductive tape
New
85 Conductive tape
New
86 Gasket
New
87 Tape
New
89 Bracket
New
90 Bracket
New
91 Screw
51
26
56
29
29
56
6163 59
60
51
62
63
58
5
44
43
67
34
49
20
50
41
44
6
46
44
67
44
21
31
35
57
32
24
3
4
86
70
36
89
85
23
1
36
90
70
91
22
53
33
17
52
35
84
19
37
33
33
19
87
10
43
2
45
33
87
87
33
78
33
33
33
77
79
33
TP000005
CHAPTER8. PACKAGING METHOD
No.
Part name
Part code
New/Conti.
1
Power cord
New
2
End cap R
New
3
End cap L
New
4
PE bag
New
5
PE bag
6
Carton
New
8
Label, bar code
New
11 Label, rating
New
13 Label, bar code
15 Manual
New
16 End cap
New
21 Cable ass’y
New
4
13
ON LCD METAL
2
6
8
16
3
1
5
15
21
11
TP000006
ã
 1999 BY SHARP CORPORATION
Printed in Japan.
SHARP CORPORATION
Information Systems Group
Quality & Reliability Control Center
Yamatokoriyama, Nara 639-1186, Japan
1999 July Printed in Japan 
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Sharp LL-T155A (serv.man2) Service Manual ▷ Download