Sony RMT-B101A - FL Display Issues (Flowchart 3)

5-11
Flowchart No.3
FL display tube does not light
Is 5V voltage supplied to connector CN100 17pin
on FL board? (If the voltage is 5V, go to “No”)
Is 0V voltage supplied to connector CN100 10pin
on FL board?
Press the DIMMER button. If not improved, check/replace the FL
board flexible cable (MAIN h FL).
If not improved by replacement, replace the Main board.
FL board flowchart 2
No
Check/replace the FL board flexible cable (MAIN h FL).
If not improved by replacement, replace the Main board.
No
Check/replace the FL board flexible cable (MAIN h FL).
If not improved by replacement, replace the Main board.
No
Are STB, CLK and DIN signals input to connector
CN100 2, 4, 5 pins on FL board?
CN100 5pin STB
CN100 2pin CLK
CN100 4pin DATA
Yes
Yes
Yes
Operation & Display Section