Philips 26MF605W/17, Service Manual

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26MF605W/17
Repair Flow Chart
1.No work/LED is off
Check if
power switch is
normal
No
Replace Power switch
Yes
Check
power board 1089
pin1,2=16V,pin3=24V,
pin4=1.8V,pin5=
4.6V
2.No raster/picture too
dim
Check
power board 1088,
pin1~5=24V,pin6=
1.8V pin7=4.6V
No
Check power board
Check power board
Yes
Check scaler board1503
pin1=1.18V,pin2~5=3.3V
No
Yes
Check
power board 1089
pin1,2=16V,pin3=24V,
pin4=1.8V,pin5=
4.6V
Check power board
Yes
Check scaler board
No
3.No picture/LED is green
Check
power board 1088,
pin1~5=24V,pin6=
1.8V pin7=4.6V
No
Check power board
Yes
Check if
working voltage
7501 pin3=3.3V,3524=
3.3V,3530=3.3V
No
Check circuit around
each regulator and
eliminate short and
open situation
Yes
Check if clock
source 1301,1502,
1731
Replace 1301,1502,1731
No
Yes
Check if
scaler 7403 RGB,
clk,H/V and DE signal
output 128 bits
TTL
No
Try to replace
CPU or CPU's flash Rom
CPU's EEPROM
Painter
Painter's EEPROM
Check
resistors-network
No
Replace bad resistors-
network
Yes
Yes
Replace LVDS cable
Yes
Replace LCD panel