Repair Tips From Japan CS centre
| Model | Block | Function | Symptoms | Cause | Repair performed |
|---|---|---|---|---|---|
| MZ-R30 | #25 | Main Board | No PlAy & REC button | C834 Short-circuit | Replace C834 |
| MZ-R30 | #25 | Main Board | No Power and "lOW BAtt" Indicated | IC805 Short-circuit | Replace IC805 |
| MZ-R30 | #25 | Main Board | No Digital Recording | R307 Cold Solder | Re-solder |
| MZ-R30 | #25 | Main Board | No Recording | C501 Failure | Replace C501 |
| MZ-R30 | #25 | Main Board | No Sound from lINE OUt & HP lch | C123 Failure | Replace C123 |
| MZ-R30 | #25 | Main Board | No Power | C816 Short-circuit | Replace C816 |
| MZ-R30 | #12 | JOG SW Unit with Dial | Mis-operation of Control Button | Corrosion in Flexible Board Pointed End | Replace Switch Unit |
| MZ-R30 | MCB | Main Board | No Recording | IC506 Soldering Delaminated | Re-solder |
| MZ-R30 | #12 | MD Flexible Board | No Power and "lOW BAtt" Indicated | MD Flexible Board Disconnected by Friction from Reinforcement Board's Edge | Stick a Protection Sheet(or tape) in a Position of MD Flexible Board that May Be Damaged by Reinforcement Board. |
| MZ-R30 | MCB | Main Board | No Power and "HI DC IN" Indicated | IC801 Failure | Replace IC801 |
| MZ-R30 | MCB | Power Board | Volume Uncontrollable | SW Board Failure | Replace SW Board |
| MZ-R30 | MD Section | lCD | Repeating Mode Uncontrollable | lCD Module Failure | Replace lCD Module |
| MZ-R30 | MD Section | Fulcrum Board Ass'y | No Reaction & No Power | Fulcrum Board ASS'y Bent(S817 OPEN/ClOSE Switch is Unable to Press) | Replace Fulcrum ASS'y(or Repair) |