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5-2-10 Visible Retrace
Is Screen voltage (550 ¡¾ 50V) right?
Does Q201 collector pulse
(35Vp-p) exist?
Does Q201 base drive
wave form exist?
Check and replace IC201
5-2-11 ACL Failure
Input full white pattern to monitor
Check the voltage at pin 2 of IC502?
(PWM WAVE FORM)
Q605,Q607 base input exists?
Check and replace pin
12 of the IC802?
YES
YES
YES
Q201 COLLECTOR
YES
YES
NO
YES
Check Screen control voltage
NO
and FBT
NO
Check 80V Line
NO
Check The G1
NO
Check replace IC502
Check replace
Q605, 12V
IC502 2pin PWM
G1
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