This is a visual inspection to see what I'm up against. So without delay lets get into it.
Disassembly: First remove the foil around the rear of the bezel. Unthread the large black ring on the back of the connector. There is a large O-ring that will come out after the back has been removed. The RMI internally is divided into six sections. I have described them from Front Face to the Rear Connector. This is just to inspect the unit and see what I will have to plan for, as of yet I still have not found/received any documentation, so in a way, I'm just sort of spitting in the wind. You will please notice that I have removed the supports from the connector assembly so it just sort of hangs there. At this time I am not willing to dive deeper into the RMI, for fear of producing damage. As you will see in image number 4. The green wire has broken loose of the black motor. I guess I will have to repair it. 
| Item | Sections | Subsections | Manufacture | Manufacture Part Number | Collins Part Number | NSN | |
| 1. | Front Face | ||||||
| a | The following Drivers are involved with Compass Card Movement | ||||||
| b | 3b, 3c, 5a, 5b, 5c | ||||||
| c | Front Pointer | ||||||
| d | Rear Pointer | ||||||
| e | ADF/VOR Switch Right | ||||||
| f | ADF/VOR Switch Left | ||||||
| g | +/- Adjustment | ||||||
| h | FLAG 'OFF' | ||||||
| i | Indicator | ||||||
| 2. | Rear Pointer Drive & Flag Motors | ||||||
| a | Synchro Rx | Litton/Clifton | URH-11-CM-4/F470 | 602894-2 | 5990-00-253-0261 | ||
| b | Indicator Motor | Jewel | 241004-103 | ||||
| c | Flag Motor | Jewel | |||||
| 3 | Drives & Switches | ||||||
| a | Control Transformer (has external slip rings) | Litton/Clifton | CTH-10-ES-05/A216 | 739681-1 | |||
| b | Transformer | Litton/Clifton | 1779939-3 | ||||
| c | Transformer (Front Pointer Drive) | Litton/Clifton | CRH-10-PS-4/B211 | 739830 | 5990-00-951-8283 | ||
| d | Tachometer, ST10131 | Cedar Engineering | |||||
| e | Switch (S301 - Left) | Clarostat | CM31783 | 1755098 | 5930-00-127-5586 | ||
| f | Switch (S301 - Right) | Clarostat | CM31783 | 1755098 | 5930-00-127-5586 | ||
| 4. | Gears | ||||||
| 5. | Rear Drives | ||||||
| .a | Synchro Tx #3406 (large Gold Cans) | Sunbeam Electric | 4022-02 | 5990-00-504-6032 | |||
| .b | Synchro Tx #9980 (large Gold Cans) | Sunbeam Electric | 4022-02 | 5990-00-504-6032 | |||
| .c | Synchro | Litton/Clifton | CTH-11-PS-9 | 610528-4 | 5990-00-557-7443 | ||
| 6. | Connector System | ||||||
| .a | Connector 55 pin connector numbered 1-55 | ||||||
| .b | Flex circuit PCB holding two (2) green termination plates for wires | ||||||
| .c | Green Termination Board 10x2 | Winchester Electronics | MBD10-2-53 | 5940-00-006-2944 | |||
| .d | Green Termination Board 10x5 | Winchester Electronics | MBD10-5-53 | 5940-00-617-1341 | |||
Notes:
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And Now the photos
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| The Rear Pointer Drive Synchro image 1 | One of the ADF/VOR switches image 2 |
 |  |
| image 3 | image 4 |
 |  |
| image 5 | Tachometer and Front Drive Synchro image 6 |
 |  |
| Close up of the front pointer drive shaft. image 7 | The business end of the RMI image 8 |
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| image 9 |
Updates:
- Attack of the Blond Moment on the RMI it says "Honeywell" ie Sperry 25 Sept 2018