Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
Text excerpt from page 56 (click to view)
DSR-7.3 UPGRADE FIRMWARE-5
2 Upgrade firmware
[NOTES] This procedure document supposing using Japanese PC. The program file name, the folder name, etc. are examples.
1. Start MS-DOS prompt using the start-up menu of PC.
Windows of MS DOS prompt
C:
WINDOWS>_
2. Press the Enter button, after inputting cd.. by the keyboard.
C:
>_
dsr73fw dsr73fw>down
3. Press the Enter button, after inputting cd dsr73fw by the keyboard. Space dsr73fw : The folder name which saves the program file
C:
drl50fw>_
4. Press the Enter button, after inputting down b1bk1138.sz0 by the keyboard. Space Zero b1bk1138.sz0 : The program fail name The file name changes with firmware version.
[The meaning of this sentence] Please switch on the power supply after connecting the DVD player and PC.