Philips LX-3000D, Service Manual

Page: 66 / 74

11-1
SURROUND BOARD
11-1
INTERNAL TC4053 BLOCK DIAGRAM
TABLE OF CONTENTS
Internal TC4053 Block Surround Diagram .................... 11-1
Surround Diagram ......................................................... 11-1
Circuit Diagram .............................................................. 11-2
PCB Layout (Component View) .................................... 11-3
PCB Layout (Copperside View) ..................................... 11-3
Electrical Parts List ........................................................ 11-4
SURROUND DIAGRAM
BINARY TO
1 OF 2
DECODER
WITH INHIBIT
LOGIC
LEVEL
CONVERSION
A
11
B
10
C
9
INH
6
8
V
SS
7
V
EE
16
cv cx by bx ay ax
V
DD
3 5
2 1 13 12
14
15
4
IN/OUT
TG
TG
TG
TG
TG
TG
OUT/IN
ax OR ay
OUT/IN
bx OR by
OUT/IN
cx OR cy
TC4053B
IC604
RC HPF
RC HPF
HPF HPF
HPF
HPF
HPF
HPF
10K
10K
1K
1K
JRC4558 JRC4558
JRC4558
JRC4558
JRC4558
JRC4558
R-IN
L-IN
FR-OUT
FL-OUT
C-OUT
SR-OUT
SL-OUT
A B C
B
1K
1K
B
B
A
A
A