Keyboard Control; 2009-Apr-10 - Philips TPS2.1E LA Service Manual

Circuit Diagrams and PWB Layouts

Keyboard control

Keyboard control
E
J1
1
2
3
4
4 HEADER
VSS
1
C1
104 VSS
VSS
VSS
TPS2.1E LA 10.
2
VOL-
R7 470?
C2
104 7
C8
C7
104 104
VSS
VSS
EN 102
VOL+ SOURCE
R8 5.6k? R3 2.2k?
C3 C4
8 3
104
VSS VSS

2009-Apr-10

CH- CH+
R4 470? R5 5.6k?
C5
4
104 104
VSS VSS
ON/OFF
R6 0?
C6
5 6
104
VSS
18250_558_090210.eps
090410