Version Display Mode; Log Submission Mode; Initialization Mode; Starting Up - Polk Mono Signa S4 Service Manual

1. Version Display Mode

1.1. Actions
Version information is displayed when the device is started in this mode.

1.2. Starting up

(1-1) for MCU Version :
While the power is On, hold down buttons "SOURCE", "VOL-" and "VOL+" for at least 5 seconds.
FIRMWARE version is displayed by LED.
Example display
Version LED1 LED2
01 non non
10 non non
24 non non
(1-2) for Region
While the power is on, hold down buttons "voice adjust 1"on the remote control for at least 10
seconds.
LED1 blinks three times. The region is displayed by the color of LED1.
Region NA
LED1 Green
LED1
Front side

2. Log Submission Mode

2.1. Actions
This mode gets the Work log.
2.2. Starting up
(1) Connect the USB flash drive.
(2) While the power is On, hold down buttons "Bluetooth", "Vol-" and "Vol+" for at least 5 seconds.
(3) The Working log file is saved to the USB flash drive.
The HDMI/CEC information is captured.
(4) When the writing of the Working log file is completed, LED1 and LED3 blink five times.
LED1(white) LED2
Blinking x 5 non
LED3(Blue) LED4(Purple)
Blinking x 0 Blinking x 1
Blinking x 1 Blinking x 0
Blinking x 2 Blinking x 4
EU JP CH
Blue Red Amber
LED5
LED3(white) LED4
Blinking x 5 non

3. Initialization Mode

3.1. 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.
3.2. 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.
LED5
LED1(Red)
non
Blinking x 3
non
non
(3) Wait six seconds before turning on the power again.
3.3. Initialization item
No. Items
1 Volume
2 Input Source
3 Bass
4 Sound Mode
5 Auto Standby Mode
6 Deep Standby Mode
7 Learned IR codes
8 All BT and HDMI information
Demo Mode default values are
9
reset
10 Custom Demo Mode
The following functions are not reset.
1 Subwoofer pairing information
2 Current firmware
LED5
non
47
LED2(Red) LED3(Red) LED4(Red)
Blinking x 3 Blinking x 3 Blinking x 3
Default
Default : 12
Default : HDMI eARC/ARC
Default : 4
Default : Movie
Default : EU : On, Except EU : Off
Default : Off
Cleared
Cleared
Things that are allowed to be adjusted like sound modes, vol,
bass, and voice adjust are reset to their defaults
Reset to the factory defaults
LED5
non