Compal ACY25 series, Service Manual

Page: 77 / 175

Electrical specification
No Symbol Min. Typ. Max. Unit Comment
V
oper
. -- 700 -- Vrms Lamp operating voltage
I
L
5.7 6.0 6.3 mArms DAC_BRIG: 0 V, PWM: 100%
I
L
2.7 3.0 3.3 mArms DAC_BRIG: 0 V, PWM:30%
F 45 55 65 KHz
1
η
80% -- -- --
Thermal
All components on inverter board should follow below rules:
Component using conditions (component stress) must be within component specification
including voltage rating, current rating, temperature etc.
Component temperature should follow below:
•
Δ
T < 30
℃
, at 25 , 35
℃
.
•
Component temperature should be less than 70
℃
inside system at 35
℃
.
Connector description
Input Connector:
CN1: ACES 87213-0700; JST SM07B-SRSS-TB
Pin No. Symbol Description
1 INV_PWR Input voltage (9V-21V)
2 INV_PWR Input voltage (9V-21V)
3 INV_PWM Adjust brightness by burst mode(3.3 V 150Hz)
4 DISOFF # Backlight on/off control, active HIGH(3.3V)
5 DAC_BRIG Max. current limit
6 GND Power system return
7 GND Power system return
Chapter 4-9