Starting Self-Diagnostic Function In The Protection Cancel Mode - Yamaha RX-V3900 Service Manual

● Starting Self-Diagnostic Function
Press the "MASTER ON/OFF" switch inward to the ON
position while simultaneously pressing those two keys
of this unit as indicated in the figure below, and keep
pressing those two keys. Release those two keys when
the "DIAGNOSTIC RX-V3900" is displayed. The self-
diagnostic function mode is activated.
● 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.)
Press the "MASTER ON/OFF" switch inward to the ON
position while simultaneously pressing those two keys of
this unit as indicated in the figure above, and keep pressing
those two keys. Release those two keys when the "SLEEP"
flashes after the "DIAGNOSTIC RX-V3900" is displayed. The
self-diagnostic function mode is activated with protection
functions disabled.
In this mode, the "SLEEP" segment of the FL display
of this unit 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 damage to itself. Use special care when us-
ing this mode.
Keys of this unit
Turn on the power while pressing these two keys.
Display /
RX-V3900/DSP-AX3900
U, C, R, T, K, A, B, G, E, L models
J model
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