Firmware Update - Marantz AV7005 Service Manual

CAUTION IN SERVICING

Firmware update

• W hen you replace the DIGITAL UNIT ASSY (8U-310051E), you need software updates.
Refer to "VERSION UPGRADE PROCEDURE OF FIRMWARE (26 - 36 page) .
Please update the following procedure.
1. First, Please update by DFW (33 - 36 page).
2. Next, Please update the latest firmware by DPMS (26 - 32 page).
Initializing AV Pre Tuner
AV Pre Tuner initialization should be performed when the μcom, peripheral parts of μcom, and Digital P.W.B. are
replaced.
1. Turn off the power using ON/STANDBY button.
2. P ress ON/STANDBY button while simultaneously pressing SURROUND MODE and AUTO buttons.
3. C heck that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2
buttons and the microprocessor will be initialized.
Note: •If step 3 does not work, start over from step 1.
• A ll user settings will be lost and this factory setting will be recovered when this initialization mode.
So make sure to memorize your setting for restoring after the initialization.
ON/STANDBY
Service Jigs
When you repair the printing board, you can use the following JIG (Extension cable kit).
Please order to marantz Official Service Distributor in your region if necessary.
8U-110084S : EXTENSION UNIT KIT
(Refer to "JIG FOR SERVICING".)
AUTO
SURROUND MODE
: 1 Set
6