LG LRM-519, Service Manual

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2. BOARD TEST METHOD USING THE JIG SET
Diagram of JIG test composition
For the JIG set, use the RV7922M set excluding the main board and HDD.
When using the set for JIG, you must use the Debug Board. You must use the HDD for JIG.
Because of the software protection policy of MS, the service man cannot include the self diagnosis software
for troubleshooting on the mass produced HDD. Therefore Boot ROM and HDD are separately needed to
repair the board.
The MS software policy is configured to only allow the Signed Image to be operated on the Signed Boot ROM.
Main Board
DVD Loader
HDD
Power