Cpu Block - Zenith D60WLCD Series Service Manual

CPU BLOCK

Is the Power normal?
Check the operation
of X-Tal.
Check the operation of Reset
when Power ON.
Is the Chip Select normal?
Is the I
D60WLCD - 923-03486
TROUBLESHOOTING
ST
Yes
Yes
Yes
Yes
2 C normal?
Yes
End.
No
Check Power Block: Refer A
No
X101: 12MHz(PCF8584)
X100: 33MHz(CPU)
No
Check Reset Circuit: Refer B
No
Check each Chip Select:
No
2
Check I C Circuit: Refer D
3-33
Check
Refer C
094A - SERVICING