Read LG 32LG515H (CHASSIS:LA66A) Service Manual online
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TROUBLESHOOTING
CURRENT PROBE : P6022A or same product
4.6 k‰ / 500 W
SC100
P203
P202
P401
400PF
3.15KV
3.15KV
400PF
3.15KV
3.15KV
P402
INPUT CONTROL SIGNAL
BURST DIMMING SIGNAL
INVERTER + POWER BOARD
VOLTAGE PROBE P6015A
or same product
or same product
VOLTAGE PROBE P6015A
or same product
or same product
INVERTER
CONNECTION
WIRE
CONNECTION
WIRE
INVERTER
TRANSFORMER
TRANSFORMER
ON/OFF : 5V
SELECT
180Hz : 5V
150Hz : 0V
180Hz : 5V
150Hz : 0V
SYNC
180Hz, 3.3V, 50% Duty
150Hz, 3.3V, 50% Duty
180Hz, 3.3V, 50% Duty
150Hz, 3.3V, 50% Duty
INV_CTRL :5V
3.4V_ON : 5V
BURST_DIM
0-3.3V
0-3.3V
A_DIM
0-1.65V
0-1.65V
P201
AC INPUT
4.6 k‰ / 500 W
<Power board structure>
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