This 5.1 speaker system comes with a 1000 Watts Peak/500 Watts RMS power for a rich THX Certified surround sound. With the ability to decode Dolby Digital and DTS encoded soundtracks.

The Logitech Z906 is who has six class D amplifiers included, but you cannot use them if you do not have the console connected.

DE-15 Console Connector

The main component is a Renesas D2-71583 intelligent digital amplifier and sound processor.

The communication between the Digital Audio Processor and the console is done through TTL serial communication at 3.3V.

The following table illustrates the pinout.

Pin	Description	Pin	Description
6	GND	12	TX
13	RX	15	Console Enable

D2-71583 NO is 5V tolerant.

Serial settings
Baud rate	57600
Data	8 bit
Parity	Odd
Stop	1 bit

Here is the DE-15 male as viewed from the front of the Main Board.

Enable Console

Connect pin 15 to GND.

Basic Usage

Z906 Logi(Serial1)

Instantiate a Z906 object and attach to Serial1, you may create multiple Z906 objects.

Logi.cmd(MUTE_ON)

The cmd method have argument any single byte command, check this list.

Commands of single byte

function	cmd	description
SELECT_INPUT_1	0x02	Enable TRS 5.1 input
SELECT_INPUT_2	0x05	Enable RCA 2.0 input
SELECT_INPUT_3	0x03	Enable Optical 1 input
SELECT_INPUT_4	0x04	Enable Optical 2 input
SELECT_INPUT_5	0x06	Enable Coaxial input
SELECT_INPUT_AUX	0x07	Enable TRS 2.0 (console) input

LEVEL_MAIN_UP	0x08	Increase Main Gain
LEVEL_MAIN_DOWN	0x09	Decrease Main Gain
LEVEL_SUB_UP	0x0A	Increase Subwoofer Gain
LEVEL_SUB_DOWN	0x0B	Decrease Subwoofer Gain
LEVEL_CENTER_UP	0x0C	Increase Center Gain
LEVEL_CENTER_DOWN	0x0D	Decrease Subwoofer Gain
LEVEL_REAR_UP	0x0E	Increase Rear Gain
LEVEL_DOWN_UP	0x0F	Decrease Rear Gain

PWM_OFF	0x10	PWM Generator OFF
PWM_ON	0x11	PWM Generator ON

SELECT_EFFECT_3D	0x14	Enable 3D Effect
SELECT_EFFECT_41	0x15	Enable 4.1 Effect
SELECT_EFFECT_21	0x16	Enable 2.1 Effect
SELECT_EFFECT_NO	0x35	Disable all Effects

BLOCK_INPUTS	0x22	Disable signal input
NO_BLOCK_INPUTS	0x33	Enable signal input

RESET_PWR_UP_TIME	0x30	Reset Power-Up Timer
EEPROM_SAVE	0x36	Save current settings to EEPROM

MUTE_ON	0x38	Enable Mute
MUTE_OFF	0x39	Disable Mute