Keyboard Control Panel; 2009-Dec-18 - Philips 32PFL1409/93 Service Manual

Circuit Diagrams and PWB Layouts

Keyboard Control Panel

1
E
Keypad
A
B
33G3802 4H
C
D
1
TPH1.1A LA 10.
2
3V3_STB
C08 C08
CN01 CN01 NC NC
1
FUNC_KEY
2
PWR-SW
3
4
CONN CONN
3V3_STB
R09 R09 R10 R10
NC 10.2K1/10W NC 10.2K1/10W NC NC
FUNC_KEY
PWR-SW
2
EN 77
3
SW01 SW01
C01 C01
R01 R01 SW SW
NC NC
20K OHM 1% 1/10W 20K OHM 1% 1/10W
SW02 SW02
C02 C02
R02 R02 SW SW
8.2K1/10W 1% 8.2K1/10W 1% NC NC
SW03 SW03
C03 C03
R03 R03 SW SW
4.32K 1% 1/10W 4.32K 1% 1/10W NC NC
SW04 SW04
C04 C04
R04 R04 SW SW
NC NC
2.74K 1% 1/10W 2.74K 1% 1/10W
SW05 SW05
C05 C05
R05 R05 SW SW
NC NC
1.8K OHM 1% 1/10W 1.8K OHM 1% 1/10W
SW06 SW06
R07 R07
100R 1/10W 1% 100R 1/10W 1% C06 C06
NC NC
SW07 SW07
R08 R08
100 OHM 1% 1/10W 100 OHM 1% 1/10W C07 C07
SW SW
NC NC
77G 603 AI HJ
3

2009-Dec-18

4
VOL+
~2.589V
CN01 B2
C01
C02
C03
C04
C05
VOL- ~2.070V
C06
C07
C08
R01
R02
R03
R04
~1.543V
R05
CH+
R07
R08
R09
R10
SW01 A4
SW02 A4
~1.032V
SW03 B4
SW04 B4
CH-
SW05 C4
SW06 C4
SW07 C4
~0.518V
MENU
~0.032V
Source Select
Power ON/OFF
4
5
E
A
A3
A3
B3
B3
C3
C3
C3
B2
A3
A3
B3
B3
C3
C3
C3
C2
C3
B
C
D
5
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