Acer AL1921 - Key Board Connector

56
Key Board Connector
C419
NC
C421
0.1uF/16V
R420 0
GND
D402
NC
+5V
OUT(R)
P.6
C405
NC
GND
OUT(L)
P.6
NEW ADD CIRCUIT FOR 4 LED 04/09
GND
JP404
PBIAS
P.4
LED_GRN
+3.3V
+3.3V
R406
0

1/16W
2003/02/21
+5V
STDBY
KEYON_OFF
R422
1K

1/16W
FB401 60
R413
470

1/16W
VOL_OUT
LED_BLUE#
C414
NC
1/10
GND
GPIO3P.4
NEW ADD CIRCUIT FOR 4 LED 04/09
LED_BLUE#
R427
NC


LED_GREENP.4
PWM0
LED_ORG
KEY ENTER
R423
1K

1/16W
+3.3V


RP401 4.7K

1/16W
1
2
3
4
8
7
6
5
Q401
PMBS3906
3 2
1
0603
PWM0P.4
+5V
KEY_RIGHT
C415
NC
R429
NC
R403
10K

1/16W
NEW ADD CIRCUIT FOR 4 LED 04/09
+5V +3.3V
KEY_AUTO


GND
KEY_RIGHT
FB404 600 OHM
+12V
Earphone(R) P.6
OUT(R)
JP403
JP403,JP404 Package
叫瓜ボ
R430
NC
R419
NC
GND
GND
LED_ORG
MUTE
3
C430
NC
R428
NC
R425
NC
715L1123-A A
K.B AND CONNECTOR
ACER GM5120/2120
B
55Monday, May 12, 2003
Title
Size Document Number Rev
Date: Sheet
of
GND
+
C409
150uF/25V
KEY_AUTO
U106F
74HCT14
13 12
147
Brightness
STDBY
3
FB402 60
R431
NC
C407
150pF
+5V
LED_ORG
C422
68pF
+5V
C410
0.1uF/16V
NEW ADD CIRCUIT FOR 4 LED 04/08
C417
NC
2003/02/21
GND
R408
NC
FB403 600 OHM
Q403
NC
3
1
2
GND
VOL
4LED
MUTE
LED_ORANGE
P.4
FB405 600 OHM
+
C411
150uF/25V
NEW ADD CIRCUIT FOR 4 LED 04/08
GPIO6P.4
MUTE_OUT
LED_GRN
R418
NC
JP403
R421 0
LED_BLUE#
C406
NC
GND
+3.3V
BackLight On/Off
C412
0.1uF/16V
R401
0

1/16W
R407
NC
GPIO7P.4
R426
NC
+
C413
22uF/16V
STBY_OUT
KEY ENTER
C420
0.1uF/16V
R404
1K

1/16W
R405
NC
VOL_OUT
Q402
PMBS3906
3 2
1


D401
MLL4148
LED_GRN
VOL 3
R424
NC
EMI SOULATION ADD C422,C423,FB403,FB404
Brightness
GND
RP402
10K

1/16W
1 2 3 4
8 7 6 5
R416
0

1/16W
GPIO8P.4
CP301
NC
1
5 6 8
4 3 2 7
R415
1K

1/16W
+5V
R402
0

1/16W
C408
150pF
R417
220

1/16W
+5V
KEY LEFT
LED_GRN
NEW ADD CIRCUIT FOR 4 LED 04/09
GND
CN403
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R414
330

1/16W
+12V
R218 1K

U106A
74HCT14
1 2
147
R412 4.7K
+
C250
22uF/16V
CN402
CONN
2
4
6
8
10
12
1
3
5
7
9
11
KEYON_OFF
GND
GPIO2P.4
+5V
GND
VOL
1/10
+3.3V
GND
R411
1K

1/16W
EMI SOULATION NEW C421 & C420 104
KEY LEFT
C423
68pF
JP404
0603
GND
Earphone(L)
P.6
R410
620

1/16W
R409
4.7K

1/16W