I am looking for schematics and alignment information for an older wireless
mic receiver. It is an HME (HM Electronics) WM-300 receiver. Crystal
controlled on freq 53.7416. I am repairing it for our church.

There is also a WM-250 transmitter with an sm58, and a second WM-400 belt
pack transmitter with a Sony lapel mic.

The receiver seems to be loosing squelch control. It also seems to loose
lock on the transmitter when the hand held transmitter is moved about.
Adjustments to the squelch and repositioning of the receiver seem not to
help.

I would like some documentation to perform an alignment.

Any help would be appreciated.
--
Paul Pinyot

www.pennhillschurch.org