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 :-(
Text excerpt from page 14 (click to view)
SERVICE OSD
SETUP SETUP
MODEL NVRAM INITIAL ELAPSED TIME MICOM VERSION VCHIP TEST WB
L172WA L OFF 21 H Ver. 49 OFF 0
MODEL NVRAM INITIAL ELAPSED TIME MICOM VERSION VCHIP TEST WB
L172WA L OFF 21 H Ver. 49 OFF 0
UP / DOWN
SELECT
UP / DOWN
SELECT
1. Press the MENU key and then enter 3-0-2-0 with the Direct Channel Select button on the remote control (See the remote control figure on page 8) to access the Service menu.
SETUP
2. MODEL shows the factory model name of the monitor. You don't need to make any adjustment in this menu.
SETUP
MODEL NVRAM INITIA L ELAPSED TIME MICOM VERSION VCHIP TEST WB
L172WAL OFF 21 H Ver. 49 OFF 0
MODEL NVRAM INITIA L ELAPSED TIME MICOM VERSION VCHIP TEST WB
L172WAL OFF 21 H Ver. 49 OFF 0
UP / DOWN
SELECT
UP / DOWN
SELECT
3. Select "OFF" in the NVRAM INITIAL using the left/right key to return to the factory defaults.
SETUP
4. Shows the monitor usage time. You don't need to make any adjustment in this menu.
SETUP
MODEL NVRAM INITIA L ELAPSED TIME MICOM VERSION VCHIP TEST WB
L172WAL OFF 21 H Ver. 49 OFF 0
MODEL NVRAM INITIA L ELAPSED TIME MICOM VERSION VCHIP TEST WB
L172WAL OFF 21 H Ver. 49 OFF 0
UP / DOWN
SELECT
UP / DOWN
SELECT
5. Shows the Micom version. You don't need to make any adjustment in this menu.
6. Use this menu to test the Vchip. When you select "OFF" using the left/right key, blocking will be initiated depending on the rating signal.
