Philips PCL304 Service Manual page 60

8-28
Memory address line failure |
at settee" read egneees
expecting eeehese
Memory data line failure
at Sseeeee,
read *teseee
Memory high eddress line
failure at eeeter* — Sweeeee
Memory
odd/even
failure
at
No
read enenede expecting Seeeree
Memory write/read failure at
seneeee read oocseetexpacting
Do you
have any ERROR,
MESSAGE as shown
left?
Yes
Replace Main
eeeeeee
lee tees
eee
Board
Do you have
any ERROR MESSAGE
os show left?
No
Is
Keyboard Connection
Yes
Connect Keyboard
Connect new Keyboard properly
Do you have
Yes
any Keyboard
error?
No
Replace Main
Replace Keyboerd Board
Z
45 766 Al2
CS 55 844