KAC-PS811D/X811D
3
Ref. No
Application / Function
Operation / Condition / Compatibility
IC4,5
NAND
D class section reverse wave, deadtime, generation and rectification
IC6
Comparator
Short circuit detection of SP output
IC7
Signal amplification
For SP output short-circuit detection, send the output to comparator
IC10
Element operation control
Communication, display, protection, etc. control
IC11
Reset
Reset signal is output when voltage goes below standard voltage
IC13
DC/DC converter
Voltage on secondary side, which produces the drive signal for switching
element, will be limited to below standard voltage
IC14
Signal amplification
To have
µ
com display current value, amplify potential differences of GND
IC15
Bi-directional buffer
Send/Receive data and clock between AMP
IC16
Comparator
Receive from H/U data and clock
Q1,2,5,7
Digital signal transmission
Send LX-REQ-M signal to H/U
Q3,4,6,8
Digital signal transmission
Send LX-DATA-S signal to H/U
Q9
Mute
Mute drive signal generation
Q10
Mute
Turn audio signal OFF
Q15,18,19,21,22,27,
Signal amplification, switching
D class section voltage or current amplification
Q28,37~40,42~45
Q16,17
Voltage control
Match the beginning of the fall to +15V when -15V power supply is OFF
Q20
Voltage control
5V power supply ON/OFF
Q23,24,35,36,41,83
Voltage control
Fan voltage ON/OFF and limiting over voltage
Q25,29,84
AVR
+15V
Q26,30,110
AVR
-15V
Q31,33,46,109
Voltage control
D class section predrive stage power supply ON/OFF
Q47
AVR
D class section first stage supplementary power supply
Q52-55
Voltage current converter
Over current detection when SP is shorted
Q57,58,60,61,
Switching
DC/DC converter switching
Q64,65,67~70
Q59,63
Voltage control
In order to have
µ
com display voltage value, send voltage to it only when 5V SW ON
Q62
Voltage detection
Pcon detection
Q66
Voltage detection
Pcon over voltage detection
Q71,72
Waveform shaping
For SP output short-circuit detection, send the output to comparator
Q73,78
Voltage detection
DC detection of output
Q74-77
Current amplification
Switching FET drive current amplification
Q79,80
Voltage control
DC/DC converter power supply ON/OFF
Q81,82
Voltage control
DC/DC converter drive waveform ON/OFF
Q88,89,98,99
Voltage control
5L digital signal reception
Q95,96
Voltage control
When Comm-SW of
µ
com is ON, turn communication system power supply ON
Q97
Voltage control
Normally 15V power supply and over voltage control
Q102,111
Voltage control
When Comm-SW of
µ
com is ON, turn communication system 5V power supply ON
Q103,104
Voltage control
LCD backlight and illumination LED control
Q106-108
AVR
µ
com system 5V power supply.
COMPONENTS DESCRIPTION
