LG55LM6700-UA - LG55LM6400-UA - LG55LA6200-UA – LED TV Power Supply Circuit Daigram - EAY62709002
Used semiconductors - HS01G
– STR A6059H – UC2843BD1 - STF18NM60N (FET) – RS1505 (Bridge Rectifier)
Firmware
Version 1.00a. Checksum 0x2214.
Power
Factor: over than 0.9 at 90 – 264Vac & max load condition.
Power
board PCB: 176mm X 270mm X 1.6(T) mm
Component
height: Max 15.5mm
Lead
Cutting: Max 2.3mm (except HD Max 3.5mm)
PCB
Material: FR-1, KB, DS, L, R-8700 CTI-600.
SCHEMATIC
CONNECTOR VOLTAGES & FUNCTIONS
MICOM SECTION CIRCUIT
On Condition
In a moment of Power ON Signal activated, the current of 3.5V output should be limited within 40mA (Max) at LCD TV condition for stability. Do not turn “Power ON” Signal on at the load condition of 3.5V output, more than 40mA.
Total regulation for each output circuit includes the results of input voltage variation, load variation, warm-up drift and temperature change.
Ripple and noise are measured at the end of output cable which are added a 0.1uF ceramic capacitor and 47uF electrolytic capacitor. (Connected parallel).
Dielectric Strength Voltage
AC 1.5KV or DC 2121V 1Min 10mA (Test SPEC)
AC 1.8KV 1 SEC 10 mA.(PSU Mass Production)
Between Primary and All Secondary Circuits.
Insulation
Resistance: Insulation resistance shall be more than 8M ohm (at DC 500V)
Between Primary Live, Neutral line and Secondary.
Burn-in
More
than 2 hours at 40℃
(±5℃),
Normal input voltage.
AC
on/off must be test 1 time after burn-in.
80%
Load (except LED String current: 130mA) of specification.
Short
circuit protection between different output terminals is not considered.
Trip
point for over voltage indicates the operating point when the output voltage
slowly increases.
The
conditions of Over Current measurement Multi output (3.5V, 12V, 24V) is nominal
load state except an over current measurement.
