Ic504 (Am5810) - LG LAC2900N Service Manual

4. IC504 (AM5810)

4-1. PIN CONFIGURATION
4-2. BLOCK DIAGRAM
28 27 26
+ -
LOADING PRE
FWD REV
x 3
1 2 3
AM5810
25 24 23 22
+ -
16K
7.5K
-
7.5K
-
16K
PREVCC
POWER
(PRE, LOADING)
SAVE
4 5 6 7
21 20 19
CH1~CH4
MUTE
POWVCC34
(CH3, CH4)
7.5K
16K
-
7.5K
-
16K
POWVCC12
(CH1, CH2)
8 9 10
2-28
18 17 16 15
10K
10K
10K
+ + - + + -
- -
10K
10K
10K
_
+
LEVEL
_
+
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
_
+
LEVEL
SHIFT
_
+
10K
10K 10K
+ + - + + -
- -
10K
10K 10K
11 12 13 14
10K
10K
10K
10K