Route 66 power supply refresh baseline

Tools Required

• Bench power supply with current limiting
• True RMS multimeter
• ESR meter
• Temperature-controlled soldering station
• Magnification and board inspection lighting

Safety Notes

• Disconnect from vehicle and external power before opening chassis.
• Discharge large filter capacitors before board handling.
• Power up through current limiting after major component replacement.

Service Workflow

1. Step 1

   Initial visual and smell inspection

   Document leakage, bulging cans, board scorching, and any prior rework quality before removing parts.

2. Step 2

   Record baseline rail behavior

   Capture startup current draw and rail voltages. This baseline helps isolate any regression after parts swap.

3. Step 3

   Replace reservoir capacitors in matched groups

   Swap one bank at a time and verify polarity twice. Keep lead dress clean to reduce vibration stress.

4. Step 4

   Controlled re-energize and thermal observation

   Bring unit up slowly on current limit, monitor idle current, then confirm heat spread remains symmetrical.

5. Step 5

   Finalize documentation

   Capture installed part IDs, lot/date codes, and after-service measurements for future traceability.

Forum References

• Route 66 recap BOM sanity check

  Community checklist for capacitor substitutions, lead spacing, and verification photos.