Service Mode; Checking Item; Check Item - Sony RDR-GX330 Service Manual

This is the diagnostics to locate cause of fault.
The diagnostics can be executed using the remote commander and a monitor.
To enter the service mode, connect the VIDEO OUT connector of the main unit to the monitor. While pressing the "A" (Open/Close) button
and the "G" (PLAY) button at the same time, connect the AC power cord to the power outlet. (Keep pressing the above buttons until a
message, "WELCOME" appears on the display panel of the main unit.)
While the diagnostics is in progress, either "OK" or "NG" appears on the monitor screen to enable the judgment whether the respective
devices or the peripheral are normal or have any abnormality.
When an abnormality is detected, the diagnostics is stopped at that moment and you can select to keep running the diagnostics or to stop it.

6-1. Check Item

Checking item

SUPER AND IC HN29V128A0ABP-5E
DDR IC K4H511638C-UCB3T
DDR IC K4H511638C-UCB3T
All parts are mounted on the RD-060 board.
SECTION 6

SERVICE MODE

IC name REF
IC501
IC105
IC106
When NG is displayed as the result of the DEVICE TEST, the IC or
its peripheral is defective.
6-1
RDR-GX330