Sony KDL-60R510A Service Manual page 17

ADJUSTMENT
4) How to use the remote commander.
Function The flow of control
Service mode on <LEFT>,<RIGHT>,<MUTE>,<+>,<MUTE>,<VOL+>
Service mode off <Return> / <Menu>
Adjustment Item up / down /
Data Value up / down /
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KDL-60R510A(CN8, UC2, LA1)