3. TROUBLE SHOOTING
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3.3.1.3 Checking RF signal path (PAM)
Check TP1(C1104) at U1100
Check if there is any major difference referring
To Figure 3.1.1(b) Is any signal detected at that
point?
Check TP2 at U1100
Check if there is any major difference referring.
To Figure 3.1.1(c) Is any signal detected at that
point?
Is any signal detected at that point?
Is any DC signal detected at that points?
START
PAM is OK. See next page to check DPX
Replace U1100
Check anything
Check anything
The Problem may be Logic part
Refer to Logic troubleshoot
Yes
Yes
Yes
Yes
No
No
No
No