Marantz SR7500/A1B Service Manual page 15

4. [SR7500 / SR8500]
Press ENTER, SURROUND MODE and T-MODE
buttons simultaneously more than 5 seconds to turn the
unit into Loading Mode.
[PS7500 / PS8500]
Press ENTER, SURROUND MODE and SLEEP buttons
simultaneously more than 5 seconds to turn the unit into
Loading Mode.
5. "LOADING MODE" will be shown on FLD.
6. Launch "UpgradeDSP.exe" on PC.
Note: yy_mm_dd is release date of software.
7. Click Port setting, and select the COM Port No.
4. ENTER, SURROUND MODE, SLEEP
5
/ PS8500]
5. FL "LOADING MODE"
6. PC "UpgradeDSP.exe"
: yy_mm_dd
7. Port setting
13
3
Loading Mode [PS7500
COM