Sony BDP-S301 - Page 77

5-17
FL tube switch periphery check
Is the potential of Q103 1, 2, 3 pins 5V? Check the 5V line on FL board.
Yes
Is the potential of Q103 4pin around 0V?
No
No No
Is the Q102 base voltage about 3V?
Replace the Q103
Yes Yes Yes
Yes
Replace the Main board
Replace the Main board
No No
Is the Q101 base voltage 0V?
Is the CN100 10pin 0V?
Replace the Q101
No
Does the CN100 10pin become 0V when Dimmer button
on remote controller is pressed several times?
No
Dimmer has effect only
No
Replace the Q102
Replace the Q100
Yes
Yes
Is the Q100 24pin about 3V?
Flowchart No.4
FL Section