Panasonic TC-32LX70/70, Техническое руководство

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Power LED Blinks Three Times (TV_SOS)
Power LED Blinks Three Times (TV_SOS)
61
Does the
cathode of
D7208 go low?
Yes
Conduct a voltage
check on the AP Board
right before shutdown.
Is there
24V at Pin 1
of CN P6?
No
Yes
Is there
105Vdc between
pins 1 and 3 of CN
P3?
Replace the P board.
Replace the LCD Panel.
No
Yes
Check and replace if necessary IC7209,
its biasing components and load.
No
Does the
cathode of
D7220 go low?
Yes Check and replace if necessary IC7209,
its biasing components and load. Perform
the same procedure for IC7233.
No
Does the
cathode of
D7469 go low?
Yes
Check and replace if necessary IC7215,
its biasing components and load.
No
Does the
cathode of
D7472 go low?
Yes
Check and replace if necessary IC7212,
its biasing components and load.
No
Does
pin 1 of CN
A4/ AP4 go
high?
No
Yes
Replace the A board