3
KAC-PS4D/X4R
COMPONENTS DESCRIPTION
●
PREAMPLIFIER UNIT (X08-4350-10)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
AR/BRch 8dB buffer-amp
IC2
AL/BLch 8dB buffer-amp
IC100
FL driver and Key Matrix
Communicate with microcomputer (on X09 unit).
●
AUDIO UNIT (X09-8620-10)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
DSP (digital amplifi er processor)
IC3
reset
detect 3.3V VDD for DSP etc
IC100,200,604
buffer
IC101,102,201,202
MOS FET driver
IC301,302,401,402
Isolation amp to reduce common mode noise
IC303,304,403,404
Amp for differential input of AD converter
IC306
Buffer amp for common voltage of AD converter
IC307
4ch AD converter for analog input
IC309
Low pass fi lter for Line out
IC310
DAC for pre-out
IC500
Error Amp for +/-16V regulator
IC502
SW power supply control IC
IC503
12V voltage regulator
IC507
buffer for sync clk
IC509
14.5V SW regulator
IC510,511
dcdc converter for 3.3V and 1.8V
IC512
5V voltage regulator
IC601
Amp for differential input of AD converter
IC602
Buffer amp for common voltage of AD converter
IC603,704,804
AD Converter for feedback
IC605
FET driver for (Q601,602) (Anti-pump circuit)
IC701,702,801,802
Amp for differential input of AD converter
IC703
Buffer amp for common voltage of AD converter
IC705
5V voltage regulator
IC900
system micro
IC901
control line 3.3V
↔
5V translation buffer
IC902
E2PROM
for installer memory, error log.
IC904
Amp for sensing GND voltage
Q101~104,201~204
SW transistor for SP output line
Q105~108,205~208
Current protection detect
Q109,110,209,210
on/off SW of N_HB_ERR (SP out over current det.)
Q111,112,114,115,
Q211,212,214,215
Speaker mute TR
