Starting Self-Diagnostic Function; Starting Self-Diagnostic Function In The Protection Cancel Mode; Canceling Self-Diagnostic Function - Yamaha R-S300 Service Manual

● Starting Self-Diagnostic Function
While pressing the "DIMMER" (U, C, R, A, L models) / "TP" (G model) and "PRESET <" keys, press the " " (Power) key to
turn on the power.
The self-diagnostic function mode is activated.
" " (Power) key
Power indicator
● Starting Self-Diagnostic Function in the protection cancel mode
If the protection function works and causes hindrance to trouble shoot, cancel the protection function as described below,
and it will be possible to enter the self-diagnostic function mode. The protection functions other than the excess current
detect function will be disabled.
While pressing the "DIMMER" (U, C, R, A, L models) / "TP" (G model) and "PRESET <" keys as shown in the figure above,
press the " " (Power) key to turn on the power and keep pressing those 2 keys for 3 seconds or longer.
The self-diagnostic function mode is activated with the protection functions disabled.
In this mode, the "SLEEP" segment of the FL display flashes to indicate that the mode is self-diagnostic function mode with
the protection functions disabled.
CAUTION!
Using this product with the protection function disabled may cause further damage to this unit. Use special care for this
point when using this mode.
● Canceling Self-Diagnostic Function
1. Before canceling self-diagnostic function, execute setting for FACTORY PRESET of main menu No. 3. (Memory
initialization inhibited or Memory initialized).
*
In order to keep the user memory preserved, be sure to select PRESET INHIBIT (Memory initialization inhibited).
2. Press the " " (Power) key to turn off the power.
Keys of this unit
U, C, R, A, L models
While pressing these keys, turn on the power.
While pressing these keys, turn on the power.
G model
R-S300
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