Power Supply Connector P203 Voltage and Diode Check
Power Supply Connector P203 Voltage and Diode Check
P203 "SMPS" to CN1 “Ballast"
P203
Pin
Label
STBY
Run Diode
Check
1-5
24V
0V
24.19V
0.73V
6-10
GND
Gnd
Gnd
Gnd
6 10
GND
Gnd
Gnd
Gnd
11
(1)
ERROR
0V
0.59V
Open
12
(2)
INV_ON
0V
3.31V
Open
13
(3)
A-DIM
n/c
4.5V
Open
14
(4)
P-DIM
0V
0.65V~3.25V
Open
1
(1) Error Pin 11 (To P201 pin 20
Silk Screened A-DIM) Goes high when the backlights are told to come on. Goes
back low when they come on. If it goes high again on the 5th attempt to fire the backlights, the set shuts off.
(2) INV_ON Pin 12 (From P201 pin 18)
Turns on the Backlights.
(3) A-DIM Pin 13 (From P201 pin 22
Silk Screened P
WM
-DIM) Is not used.
(4) PWM-DIM Pin 14 (From P201 pin 24
Silk Screened Error_Out) can vary according to incoming video IRE level
and OSD Backlight setting Output from the Video Processor IC100. Range 0.65V to 3.25V.
November LCD TV 32LD350
38
Diode Mode values taken with all Connectors Removed
