Minolta EP5000 General, Mechanical/Electrical page 347

Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
uC0500, C0510
Step Check Item
Does H1 light up when the Power
1
Switch is turned ON?
2 Is TH1 installed properly?
3 Is TH1 dirty?
Measure resistance of TH1. Is is infi-
4
nite?
Perform the "Controller Board Check."
5
Is malfunction code "C0311" displayed?
Check H1 for continuity. Is there conti-
6
nuity?
uC0520
Step Check Item
Does H1 remain lit after the copier has
1
warmed up?
Perform the "Controller Board Check."
2
Is malfunction code "C0311" displayed?
3 Does H1 turn OFF?
4 Is TH1 installed properly?
5 Is TH1 dirty?
Measure resistance of TH1. Is is 0 Ω
6
or close to 0?
Result
Go to step 5.
NO
NO Reinstall TH1.
YES Clean or change TH1.
YES Change TH1.
NO Change PWB-A.
Change PWB-A.
YES
YES Change SSR1.
NO Change H1 or TS1.
Result
Go to step 4.
NO
Change PWB-A.
YES
NO Change SSR1.
NO Reinstall TH1.
YES Clean or change TH1.
YES Change TH1 (TH2).
NO Change PWB-A.
T-72
Action
Action