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 7 (click to view)
[Reference] On Serial/Parallel Loopback Tool
� The serial loopback tool and the parallel loopback tool are necessary for diagnostics of the serial communication line and the parallel communication line. Fabricate the serial loopback tool and the parallel loopback tool locally referring to the connection diagrams shown below.
Serial Loopback Tool : For diagnostics of serial port
SERIAL LOOPBACK CONNECTOR CONNECTION DIAGRAM
� Connector Types DB9S (Female) � Interface Standard RS-232C � Loopback Data & Handshake
DB9S DCD RX TX DTR GND DSR RTS CTS RI
NOTE: The black round mark "z" indicates soldering.
1 2 3 4 5 6 7 8 9
Parallel Loopback Tool : For diagnostics of parallel port
PARALLEL LOOPBACK CONNECTOR CONNECTION DIAGRAM
� Connector Types DB25P(Male) � Interface Standard Centronics � Loopback Status to Commands
DB25P -STROBE D0 D1 D2 D3 D4 D5 D6 D7 -ACK BUSY PE SLCT
NOTE: The black round mark "z" indicates soldering.
