Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
Text excerpt from page 1 (click to view)
ORDER NO. KMF0010250S3
PERSONAL FACSIMILE
KX-FT37CX-W KX-FT37AL KX-FT37LA KX-FT37LS KX-FT37ML KX-FT37NZ KX-FT37TK
Please file and use this supplement manual together with the simplified and original service manual for following models.