Outstanding quality manual. This is the exact documentation I needed to service my AKAI GX-210D. This is a PERFECT COPY of the service manual for my machine. Outstanding service. Thank-you!
This service manual have great value... Recommended A+++++++
Text excerpt from page 14 (click to view)
TROUBLE SHOOTING GUIDE
1. Power Board
1-1. The whole flowchart which it follows in voltage output state
Start check
Doesn't the screen whole come out?
Yes
Is it identical with Power Off condition? Yes
No
Is the Interface signal operated?
Yes 2. Check the Interface signal condition.
No
1. Check the Power Off condition.
Doesn't the low pressure output come out?
Yes
Doesn't the St-by 5V signal come out? Yes
No
Doesn't the 5V Monitor signal come out? Yes 4. Check the 5V Monitor signal circuit.
No
Doesn't the VSC signal RL-ON come out? Yes 5. Check the VSC RL-ON signal. No
No
3. Check the St-by 5V signal circuit.
Doesn't the high tension output come out?
Yes
Doesn't the VSC signal Vs-ON come out? Yes
No
Doesn't the Vs, Va voltage output come out? Yes 8. Check the Vs, Va voltage output circuit.
Doesn't the VSC low pressure output come out? Yes 6. Check the VSC low pressure output
No
7. Check the VSC Vs-ON signal
Does high tension output voltage Drop occur? No
Yes
When the Y, Z B/D Module input connector is remove, does Power Board hightension output voltage Drop occur? Yes 9. Check the Power Board Output high tension circuit
When the Y B/D Module No input connector is removed, does output voltage drop occur? Yes 10. Check the Z B/D Module output circuit No
When the Z B/D Module input connector is removed, does output voltage Drop occurs? Yes 11. Check the Y B/D Module output circuit
