Sanyo DC-F430AV Service Manual page 31

IC BLOCK DIAGRAM
IC102 BA6398FP
No.1 Designation
[POWER DRIVER)
Description [ No. Designation
Description
Driver CH1 nega!he output I 15
OP IN (-) Operation amplifier negative intput
Driver WI CW51[ :.:&output I 16 OP IN (+) Operation amplifier positive intput
.._—rL .
b., :;:- il.,lj
I
17 CH3-OUT A Driver CH3 negative output
[r,(kli i~{k',li;l~.h ILL6:., :"o:tment driver CH1 gain
18 CH3-OUT B Driver CH3 positive output
— —-
Ckmf"sel.se.!i-.'-ia'i "r Lase
I
CH3-IN A
Driver CH3 input
——..
~o~.,~,~~:; , :, i,:,~, .! ")1..(/ut
k---- -
I 20
CH3-IN B
Input terminal for adjustment driver
CH3 gain
-,-:1' ' 1 ;:J'I
lkll
"",,,[;~[ ~ ~
I
21
Vcc
Power terminal
"GNP
'.,-)
--
Vcc
Power terminal
——
I-[3L ',+ :!!li-I;:.~ ' h zjJ.?f~ .;I, J;,;,U, . ,$, ~~-~,- , q.j~,, / ~
I
Bias amplifier input
terminal
Z:$e , ~ ~ = '---"
___ ___ J'
"'" ~~ ! --:]~: ~l,,[2L1~
24 ~ [::.-{~-IN B
Input krmirm! for ad:'vsfhg
driver CH4 gain
~)f~.,,l? la: ~ fi,:.;;~+~.:,o ~~tput
25 '-"""Qi-w-lN A
Dfi&w ~~-~~"j;-kp~~
' ' :7:=1:: ~':
:1 t "::
wtput 26 CH4-OUT B
Drive?' (3+4 positive
output
—.–-–
—_ .=_
27
CH4-OUT A Driver:; k h r-gative output
—.. —
Ope:&ii's'i"l r '1'1, I 'll"-? :.L!'@J!
T 2$
GND Substrate GND
cub.
cH4-
CH4- CH6- BIAS CH3- cH3-
CH3- - W OP
w CUTA WTB
IN A IN 8
IN
Vcc Vcc IN B IN A
OUT B O~T3 A IN(+)
IN(-)
'=-
1 I
I
Ill
P
~-
IC106 NJM4558D (Buffer Amplifier)
P
A OUTPUT 1
8 VCC(+)
A
-+
A -INPUT 2
B OUTPUT
$;, 7
A +INPUT 3
'"[-l' "{~j B -INPUT
L
,-
j
-30-