Power Pcb; Input And Environmental Requirement; Output Characteristics; Function Of Protection - Daewoo DPP-42A1LASB Service Manual

7. Power PCB

1 Input and Environmental Requirement

Input Requirement
Norminal Input Voltage
Input Voltage Variation Range
Nominal Frequency
Frequency Variation Range
Phase
Inrush Current

2 Output Characteristics

3 Function of Protection

Description
AC100V to AC240V
AC85V to AC276V
50 / 60 Hz
45Hz to 65Hz
Single
30A zero-pk max. at cold start
and any specified line, load and
temperature conditions
Output Norminal
Circuit Voltage [V]
Vs 175
Vd 60
5V (ctrl) 5.1
5V 5.1
DTV3.4V 3.4
DTV2.5V 2.5
33VT 33.0
12V 12.0
17V (Audio) 17.0
-17V (Audio) -17.0
5V (STBY) 5.0
Protection Output Circuit
Over Current Vs
Vd
5V (ctrl)
5V
12V
Environment Requirement
Operating Temperature Range -10 to 50 deg.
Operating Humidity Range
Storage Temperature Range
Storage Humidity Range
Cooling Condition
Voltage Load
Adjustment [V] Variation [A]
160 - 190 0.4 - 1.5
55 - 65 0.01 - 2.5
4.75 - 5.25 1.2 - 4.0
4.75 - 5.25 0.5 - 4.5
-- 0.5 - 2.0
-- 0.2 - 2.0
-- 0 - 0.05
-- 0 - 2.0
-- 0 - 0.7
-- 0 - 0.7
-- 0.03 - 1.0
Trip Point
1.7A or more Shut down by Under Voltage
3.0A or more Shut down by Under Voltage
13.0 - 25.5A
Shut down by Under Voltage
(Total Current)
1.76A or more Shut down by Under Voltage
-33-
Description
10 to 90 %
-20 to 60 deg.
10 to 90 %
Free Air
Ripple
Noise [mV p-p]
500 / 500
300 / 300
30 / 200
50 / 200
50 / 200
50 / 200
100 / 400
100 / 400
100 / 400
100 / 400
50 / 200
Notes