The delivery of this manual was very fast, less than 8 hours. The manual is very clear and concise, and helped a great deal in the repair and final setup of the Hitachi HMA-G2 Amplifier.
At $5,00 certainly good bang for your buck. Includes electric schematics as well as exploded parts view + parts list for reordering. Unfortunately no details on the PCB contents or working, but then again, this is not overly complex. Best bonus: this manual does contain the heavily searched for LED error codes as well as descriptions for test operation. Haven't gotten around to fixing the machine yet, one thing the manual won't do for you is getting it out of the kitchen assembly :-(
It`s not your fault tear down is rather incomplete. It doesn`t have complete instructions as to deconstruction for repair.
Text excerpt from page 5 (click to view)
2-1
DISASSEMBLY INSTRUCTIONS
Dismantling the Grille Frame Assembly
1. Place the Subwoofer Box as shown in the Picture 1 and pull to force open the Grille Frame Assembly. Caution: Take care the surface when take out the Grille Frame Assembly of Subwoofer.
Dismantling the Rear assembly
1. Loosen 8 screws A as shown in the Picture 2 (Rear View) to pull out the Printed Circuit Board assembly. Caution: Do not break the bundle of wires to the front.
A
Picture 1
Picture 2
Dismantling the Front Assembly
1. Place the Subwoofer Box as shown in the Picture 3 and use a screw driver to force open the front assembly. Caution: Do not break the bundle of wires to the front. Take care the surface when take out the front panel of subwoofer
WARNING: THERE IS ONLY A LED BETWEEN THE FRONT PANEL AND WOOD BOX. IF NOT NECCESSARY, PLEASE DO NOT TRY TO OPEN THE FRONT PANEL!!!