Daewoo DF-5500(S/P) Service Manual page 9

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM
TROUBLESHOOTING
D. No broadcasting signal received
No broadcasting signal
received
YES
Is the output at IC501 pin#
61(CLK), 60 (DATA) normal?
YES
Is SIF,Video output at TMI(RF101)
pin#16,19 normal?
YES
Is Video Signal input at IC501
pin#56?
YES
Is there Video output at P302
pin#5?
YES
Check Video Buffer Q670
˘ ` 8 mac001 1200DPI 80LPI
NO
Check IC 501.
NO
Check TMI (RF101) Block.
NO
Check IC 501.
NO
Check P302
8