Keyboard Panel - Philips QCS1.0S Service Manual

Circuit Diagrams and PWB Layouts

Keyboard Panel

5
KEYBOARD PANEL
B
L41
CN8
KHB0805R121SA
1
1
6 2
G 2
7 3
G 3
4
4
5
5
D
SMD
EIC_4510_E05N
C44 C45 C46
0.1uF 0.1uF
0.1uF
KEY_5V
R8
10K/1%/0603
C
ADC_IN2
U6 U7
TOUCH SWITCH 4P TOUCH SWITCH 4P
INPUT PLUS
R10
0R
B
FIX10 FIX_MASK FIX13 FIX_MASK
FIX11 FIX_MASK FIX14 FIX_MASK
FIX12 FIX_MASK FIX15 FIX_MASK
A
5
QCS1.0S LA 7.
4
KEY_5V
ADC_IN3
ADC_IN2
ADC_IN1
C42 C43
0.1uF 1uF
SMD SWITCH
Package STSB5
ADC_IN3
U8
TOUCH SWITCH 4P TOUCH SWITCH 4P
UP MI NUS
R9 R7
4.7K 20K
3 4 3 4
3 4 3 4
2 5 2 5
2 5 2 5
1 1
1 1
4
38
3
KEY_5V
R11
10K/1%/0603
ADC_IN1
U4
TOUCH SWITCH 4P TOUCH SWITCH 4P
PWR
KEY_5V
R13
0R
R5
10K/1%/0603
U9 U10
TOUCH SWITCH 4P TOUCH SWITCH 4P
DO WN
R6 R4
0R 4.7K
3
2 1
U5
MUTE
R12
4.7K
U11
EXIT
R3
20K
2 1
B
D
C
B
A
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