SWITCH UNIT (MJT-3550)
| ITEM NO. | PART NO. | DESCRIPTION | NOTE |
| 1 | INY-1181 | SW BRKT | |
| 2 | 421-8126 | STICKER SWITCH PANEL | |
| 101 | 220-5179 | VOL CENT B-5K OHM | |
| 102 | 509-5028 | SW PB IM | |
| 103 | 601-0042 | KNOB 22 MM | |
| 104 | 310-5029-D20 | SUMITUBE E D20 MM | |
| 105 | 601-0460 | PLASTIC TIE BELT lOOMM | |
| 301 | 600-6609-32 | WIRE HARN TEST & SERVICE | |
| 302 | 600-6609-33 | WIRE HARN VOLUME | |