Akai LCT42Z7TAP, Service Manual

Page: 84 / 130

Product Specification
LC420WU1
Liquid Crystal Display
3-2. Interface Connections
This LCD module employs two kinds of interface connection, a 51-pin connector is used for the module
electronics and two 12-pin connectors are used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): FI-R51S-HF (JAE)
- Mating Connector : FI-R51HL or Equivalent (Manufactured by JAE)
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
-
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
No
-
Power 12.0V
Power 12.0V
Power 12.0V
Power 12.0V
No connection
Ground
Ground
Ground
No connection or GND
No connection or GND
No Connection
No Connection
SECOND CHANNEL 3+
SECOND CHANNEL 3-
Ground
SECOND CLOCK CHANNEL C+
SECOND CLOCK CHANNEL C-
Ground
SECOND CHANNEL 2+
SECOND CHANNEL 2-
SECOND CHANNEL 1+
SECOND CHANNEL 1-
SECOND CHANNEL 0+
SECOND CHANNEL 0-
No connection or GND
Description
-
VLCD
VLCD
VLCD
VLCD
NC
GND
GND
GND
Reserved
Reserved
Reserved (NC)
Reserved (NC)
RE3P
RE3N
GND
RECLKP
RECLKN
GND
RE2P
RE2N
RE1P
RE1N
RE0P
RE0N
Reserved
Symbol
No Connection
Reserved (NC)
25
No Connection
Reserved (NC)
24
FIRST CHANNEL 3+
RO3P 23
FIRST CHANNEL 3- RO3N
22
Ground
GND 21
FIRST CHANNEL 1+
RO1P
15
FIRST CHANNEL 1-
RO1N 14
FIRST CHANNEL 0+
RO0P 13
FIRST CHANNEL 0- RO0N 12
Ground
GND 11
No Connection Reserved(NC)
2
No Connection Reserved(NC)
3
No Connection Reserved(NC)
4
No Connection Reserved(NC)
5
No connection Reserved(NC)
6
Select LVDS Data format LVDS Select
7
External VBR VBR_EXT
8
VBR output VBR_OUT
9
‘
H
’
= Enable ,
‘
L
’
= Disable
DCR Enable
10
FIRST CHANNEL 2-
RO2N 16
FIRST CHANNEL 2+
RO2N 17
Ground
GND 18
FIRST CLOCK CHANNEL C-
ROCLKN 19
FIRST CLOCK CHANNEL C+
ROCLKP
20
No connection or GND
Reserved
26
Description Symbol No
GND
Ground
1
Note :
1. The pin no 44 is LCD Test option.
“AGP” (Auto Generation LCM operates Pattern) or “NSB” (No Signal Black) is case that LVDS signals
are out of frequency or abnormal condition in spite of 12 volt power supply.
LPL recommends “NSB”. ( AGP : “VCC” or “OPEN” / NSB : “GND” )
2.All GND(ground) pins should be connected together to the LCD module’s metal frame.
3. All V
LCD
(power input) pins should be connected together.
4. All Input levels of LVDS signals are based on the IEA 664 Standard.
5. Specific pins(pin No. #1~#10) are used for internal data process of the LCD module.
If not used, these pins are no connection.
82／128