IBM, Music Mixer, models:

1754 LCM8	Product Manual
3205	Maintenance Information
7042-CR6	Troubleshooting, Service, And Support
7316 - TF1 Rack Console	Installation And Maintenance Manual
HMC 5250	Manual
Hardware Management Console	Installing And Configuring
LCM8	Installation And User Manual
Power Systems 7063-CR1	Installing
SDMC	Troubleshooting, Service, And Support