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 8 (click to view)
RX-6000VBK/RX-6008VBK/RX-6100VBK Removing each board in the front panel assembly (See Fig.17 to 20)
Prior to performing the following procedure, remove the top cover and the front panel. 1. Pull out the volume knob on the front side of the front panel and remove the nut attaching the volume board. 2. Remove the three screws N attaching the volume board on the back of the front panel and disconnect the harness from connector CN411 on the volume board. 3. Remove the ten screws O attaching the system control board and disconnect the harness from connector CN402 on the system control board. 4. Remove the six screws P attaching the operation switch board. Push each tab b of the four joints inward and detach the operation switch board to the front. 5. Remove the screw Q attaching the operation switch board.