Ic Block Diagrams - Sony D-EJ775 Service Manual

• IC Block Diagrams

IC302 TA2120FN (EL)
BST BST
BIAS
OUT SW BIAS
IN
24 23 22 21
BIAS
ADD
B
BST
ADD
A
PWC
SW
2
1 3 4
BST ADD RF IN PWC
NF OUT SW
IC406 TB2127AFN (EL)
SYNC 1
VC
XBRK 2
FG 3
VC 4
CONTROL
DGND 5
XRST 6
DATA 7
XLAT 8
CLK 9
VDU 10
U 11
PRE-DRIVER
PGUV 12
PW MT MT
BEEP
SW SW TC IN GND
20 19 18 17
16
BEEP
PW MT
SW SW
OUT B
OUT A
PW
PW
PW
C
B A
6 7 8 9
5
VCC OUT B OUT C OUT A PWR
GND
24 PWM
23 APWM
+
–
TRIANGULAR 22 AGND
WAVE
GENERATING
21 VG
20 COM
19 UI
18 VI
17 WI
16 PGW
15 W
14 VDVW
13 V
ATT
IN B IN A SW
15
14 13
ALC ALC
ATT
SW
ALC
DET
10 11 12
MIX ALC ALC
OUT IN DET
D-EJ775
29