Electrical Specification; Connector Description - Compal JHT01 Service Manual

• Inverter should pass human body safety test.
• Inverter should no smoking by any component open / short test
• Transformer voltage stress should not be over 85% under any condition (turn
on overshoot transient and line transient).
• Audio noise should be less than 36dB at 10 cm distance.
4.4

Electrical specification

4.4.1 Electrical specification
No Symbol
V .
oper
I
L
I
L
1 I
L
I
L
f
η
4.4.2 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°C, at 25, 35°C.
Component temperature should be less than 70 ° C inside system at 35 ° C.
4.5

Connector description

4.5.1 Input Connector:
CN1: ACES 87213-0700; JST SM07B-SRSS-TB
1
2
3
4
Min. Type. Max.
-- 650
6.2 6.5
3.0 3.3
5.7 6
2.7 3
45 55
80% --
Symbol
INV_PWR
INV_PWR
INV_PWM
DISOFF #
Unit
-- Vrms Lamp operating voltage (650+/-50)
6.8 mArms
3.6 mArms
6.3 mArms
3.3 mArms
65 KHz
-- --
Input voltage (9V-21V)
Input voltage (9V-21V)
Adjust brightness by burst mode (3.3 V 150Hz)
Backlight on/off control, active HIGH (3.3V)
JHT01 Service Manual
Comment
DAC_BRIG: 0 V, PWM: 100%
DAC_BRIG: 0 V, PWM: 30%
DAC_BRIG: 1 V, PWM: 100%
DAC_BRIG: 1 V, PWM: 30%
Description
4-15