Lexmark T650 Service Manual - Page 145
Replace the main drive
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4062 Error code or message 936.90 Error contents Main drive motor assembly failure Stall detected during speed control. Motor = type 0 Description/Action The main drive motor assembly may be faulty or has failed. 936.91 Main drive motor assembly failure Stall detected during speed control. Motor = type 1 The main drive motor assembly may be faulty or has failed. 937.40 Main drive motor assembly failure Over speed detected during speed control. Motor = type 0 The main drive motor assembly may be faulty or has failed. Possible repair actions 1. Check all connections on the system card assembly. 2. Check all connections on the main drive motor assembly. 3. Replace the main drive motor assembly. Go to "Output cover assembly removal (T650, T652, T654)" on page 4-54. 4. Replace the system card assembly if problem remains. Go to "System card assembly removal (T650, T652, T654, T656)" on page 4-76. 1. Check all connections on the system card assembly. 2. Check all connections on the main drive motor assembly. 3. Replace the main drive motor assembly. Go to "Output cover assembly removal (T650, T652, T654)" on page 4-54. 4. Replace the system card assembly if problem remains. Go to "System card assembly removal (T650, T652, T654, T656)" on page 4-76. 1. Check all connections on the system card assembly. 2. Check all connections on the main drive motor assembly. 3. Replace the main drive motor assembly. Go to "Output cover assembly removal (T650, T652, T654)" on page 4-54. 4. Replace the system card assembly if problem remains. Go to "System card assembly removal (T650, T652, T654, T656)" on page 4-76. Diagnostic information 2-111
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