Panasonic TC-32LX70/70

See Next Page.
Turn on the Main
Power Switch.
Can an audible
click be heard
from the Power
relay?
If connector is good, replace
the P Board.
Yes
No
Standby 5V
On Pin 3 of CN
A4 OK?
Yes
No
Refer to the AP Board test points
Refer to the AP Board test points
Slide 45.
Slide 45.
Check for 4.5V on pin 15
of connector AP2 (RELAY.)
Check for STBY 5V on pin 16 of
connector AP2.
5V
Present?
Yes
4.5V
Present?
The Main_SW_Detect signal
on Pin 7 of connector AP4
should go low when the Main
Power switch is depressed.
Pin 7
low?
Replace the
AP board.
No
No
Yes
Replace the
P Board.
No
No
No Power
58
Is there
105Vdc between pins 1
and 3 of CN P3?
Replace the LCD
Panel.
No
Is there
24Vdc at pin 1
of CN P6?
Note: the Power
LED should blink.
Yes