Locations of mechanism deck
1
2
3
Board name
1
SE-521G
2
SE-538G
3
CN-1863
4
SE-525G
5
SE-522G
6
DR-428BG
2-2
Circuit function
Threading Mode Sensor, Tape End Sensor, Loading Motor FG Sensor
Tension Sensor
REC INHIBIT Sensor, MIC Terminal
Tape Top/End LED
Tape Top Sensor, Reel Position Sensor
Drum/Reel/Capstan Control Board
6
5
4
HVR-1500