Post-Service Precautions; Initializing This Unit - Polk Mono Signa S4 Service Manual

POST-SERVICE PRECAUTIONS

Initializing this Unit

1. Actions
The default settings can be restored at any time by clearing all the user data and configuration information in the product to return it to the factory defaults.
The firmware is not downgraded.
2. Starting up
(1) While the power is On, hold down buttons "Vol+", "Source" and "Power" for at least 5 seconds.
(2) All LEDs light up three times after initialization.
LED1 LED2
Step 1 Red Red
Step 2 Red Red
Step 3 Red Red
(3) Wait six seconds before turning on the power again.
LED3 LED4 LED5
Red Red non
Red Red non
Red Red non
Top side
Front side
Rear side for INTL
Rear side for NA
X SOURCE VOL+
LED1 LED5
7