To: CurlyCord: Yep, fuse most assuredly has left the working world. With hundreds of power supplies replaced across this big a community, I figured somebody would have the actual rating.
To: MIBTM, Thank you. You've put me closer, I'll check with local supplier Monday nd see what they can...
Have a dead MICS power pack, # NT7B62FA-93. Vintage 2003.
Repair seems straight-forward, no parts let out the magic smoke.
Located shorted main diodes, 1N5408 x 4 units, and can replace those.
Mystery item is on-board, solder-in fuse. Label on board is
T3A15/250v. Power supply rated draw is...
Missing from your post is if they are using wireless headset option on that phone. Many have beep notify to the earpiece when the base units 'hears' a ring signal thru its small monitor microphone.
Turn the sensitivity down to low.
Casey
Well, you do have tel set control over assorted volumes.
Digital sets have a Program key that activates an internal menu service. One of the menu choices is volume presets of:
earpiece, speaker, ringer, handsfree if capable, and headset if acd set.
Assuming that the incoming MOH source is not...
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