KAWA LCT37AD, Руководство по обслуживанию

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Product Specification
LC370WX1
Liquid Crystal Display
3-6. Power Sequence
Interface Signal (Tx)
Power for Lamp
Power Supply For LCD
V
LCD
10%
0V
90% 90%
10%
T
1
T
2
T
5
T
6
T
7
T
3
T
4
Valid Data
Lamp ON
T
8 T
9
Option Signal
(DISM, DCR_Enable)
Table 9. POWER SEQUENCE
ms 300 - - T6
s - - 2.0 T7
ms 0 < T9 < T5 T9
ms 0 < T8 < T2 T8
ms 50 - 5.0 T2
ms
ms - - 200 T3
- - 200 T4
ms 50 - 0.5 T5
ms 20 - 1.0 T1
Max Typ Min
Unit
Value
Parameter
Note : 1. Please avoid floating state of interface signal at invalid period.
2. When the interface signal is invalid, be sure to pull down the power supply V
LCD
to 0V.
3. The case when the T2/T5 exceed maximum specification, it operates protection
pattern(Black pattern) till valid signal inputted. There is no reliability problem.
4. The T3/T4 is recommended value, the case when failed to meet a minimum specification,
abnormal display would be shown. There is no reliability problem.
5. If the on time of option signal(DISM or AI_Enable) precedes the on time of Power(V
LCD
),
check the LCD logic Power(Vcc) is under 0.8V, otherwise it will be happened abnormal display.
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