Radio Shack PRO-2035 Service Manual page 66

IC4 TDA19DS
RIl
OUTPUT
GND
VS
GND
R3
012
BOOTSTRAP
GND
R5
R6
THRESHOLD
GND
MUTING
GND
R4
INVERT IN
GND
SVR
GND
NON·INVERT
GND
INPUT
4 S
6
IC8 MC78DSCT
or
TA78DDSAP
,--_,----r---,~-~~-_,-_{1
IN
3
OUT
R8
RIO R3 Rl4
R7
R4 Rl8
R9 R13
08'"
~09 D2'~ ~
:::-J
a;L )
~0~16(
r-r:_ _
1-_-1:
,R21 .....
=
017
r-=±-__
--J"l
015~ ~
Rl'
R5
1
01 1*'0
~
r
Rl7
i
RIl
+-++-1:1
~013
01:1-1*' -
)"' R 20
R15
Rl6
Dl'R6
Hr-+--1
U"
r-.
11
l...--.J
Rl
~;rR2~~
01 ,..y 02
-j:.
~03
R19
1.
Input
2.GND
3. Output
o
L------..---'~_+__-+--_-+--
-..--__+_-_
_{2
GND
IC9 S812SDHG-RD
r - - - - - - - - - - - - - - -
I
I I
1 2
3
1. GND
2. Vin
3. Vout
Vin
GND 1
r + - - - - - O - {
L J
Vout
-66-