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DM501/Repairs: Difference between revisions
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The contact bar in switches can break. Replacing the contact bar and contacts can be done without desoldering the switches. | The contact bar in switches can break. Replacing the contact bar and contacts can be done without desoldering the switches. | ||
Refer to the the pictures and the [[260-1971-00/Repairs| repair]] section of switch assembly [[260-1971-00]]. | Refer to the the pictures and the [[260-1971-00/Repairs| repair]] section of switch assembly [[260-1971-00]]. | ||
==R10 Repair== | |||
Fault pattern: U AC/DC and resistance (exept the lowest range) are 2% to low. | |||
Fault: R10. Some resistors are to low (900 kΩ and 90 kΩ). The "stuff" inside has become liquid. The liquid has a low resistance. | |||
Solution: Open R10. Clean R10 inside with isopropanol and in a ultrasonic bath. | |||
==See Also== | ==See Also== | ||