Labels:book | reckoner | sky OCR: KENWOOD ASB-1057 Service Bulletin Amateur Radio Division Subject: TH-22/42 AVE Memory Loss Improvement Date: March 28 1994 Symptom: Memory loss can occassionally occur if the following procedure is observed: Program the memory with any desired information Allow the battery pack to drain umop over an extended period of time without turning off the transceiver. For example turn the volume control up and the squelch off. After approximately hours the battery voltage will drrp to approximately vOC Turn off the POWER SW Connect DO voltage supply ora fully charged battery pack Turn on the POWER SW Memory will have been lost Corrective Action Replace microprocessor IC206 with the improved part listed below This part incorporates an software improvement to correct this symptom Parts Required: Qty ...
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