Philips BDL3221V/00, Service Manual

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BDL3221 LCD/TV
Repair Flow Chart
4.No D-Sub picture
Check if
H/V signals input
to schmitt trigger
7201
No
Check input path
Yes
Check if
schmitt trigger 7201
output H/V signals to
JAGASM
No
Replace 7201
Go to 3.No picture/LED
is green
Yes
5.No TV sound
Check if
tuner 1676 pin11
output 2nd IF
signal
No
Replace 1676
Yes
Check 7676
6.No earthphone sound
Check
7902=25V
No
Eliminate short and open
situation
Yes
Check 7814
pin2=MSP-OUT-R
pin6=MSP-OUT-L
No
Replace 7814
Replace Side AV Board
Yes
7.No remote function
Tty another
remote control
No
Replace one good
remote control
Yes
Check IR receiver
8.LED and function
key poor
Check circuit around
control board and cable
between control board
and scaler board
9.No HDCP picture
Check 7301
has HDCP code
No
Write HDCP code in
7301
Yes
Check Scaler Board