Key Board Connector - Acer AL1721h Service Manual

Key Board Connector

NEW ADD CIRCUIT FOR 4 LED 04/09
R407 NC
+5V R408
NC
R406
FB405 600 OHM
C406
NC
CN403
1
LED_GRN
2
LED_ORG
3
KEY_AUTO
4
KEY ENTER
5
KEY_RIGHT
6
KEY LEFT
7
KEYON_OFF
8
GND
9
GND
10
FB403 600 OHM
11
FB404 600 OHM
12
FB401 60
13
14
60 FB402
CONN
C408
C423 C407
150pF
68pF
150pF
GND
GND EMI SOULATION ADD C422,C423,FB403,FB404
2003/02/21
CN402
2 1
4 3
6 5
8 7
10 9
12 11
CONN
+5V
GND
R410
620 1/16W
Brightness
PWM0
P.4 PWM0
R411
1K 1/16W
GND
+3.3V
+3.3V
0 1/16W
LED_BLUE#
C405 R403
NC
NEW ADD CIRCUIT FOR 4 LED 04/09
10K 1/16W
GND
P.4 GPIO7
P.4 GPIO6
P.4 GPIO3
P.4 GPIO2
Earphone(R) P.6 P.4 GPIO8
Earphone(L)
P.6
OUT(L)
P.6
OUT(R)
OUT(R)
P.6
C422
68pF
R409
4.7K 1/16W
C409 + + C411 C412
C410
150uF/25V 150uF/25V 0.1uF/16V
0.1uF/16V
GND
C413
+
22uF/16V
RP402
10K 1/16W
RP401 4.7K 1/16W
5 4 KEY_RIGHT
6 3 KEY ENTER
KEY_AUTO
7 2
VOL_OUT
KEYON_OFF
8 1
KEY LEFT
R412 4.7K
+5V
R422
CP301
C430 NC 1K 1/16W
NC
STBY_OUT
MUTE_OUT
GND
R429 NC R427
R431 +5V +3.3V
NC
R428
NC LED_BLUE#
R426
NC
4LED 1 Q403
NC
NC
C414
NC
GND NEW ADD CIRCUIT FOR 4 LED 04/09
BackLight On/Off
PBIAS
Brightness
P.4
GND
+12V
+12V
+5V
+5V +3.3V
+5V
R413 R430
470 1/16W NC
D401
MLL4148
PMBS3906
R414
Q401 1 LED_GRN R416
PMBS3906 0 1/16W
330 1/16W
LED_GRN
R425
NC
LED_BLUE#
NEW ADD CIRCUIT FOR 4 LED 04/09
47
JP403,JP404 Package 叫 瓜ボ
+5V +3.3V
JP403 JP404
R404 R405
1K 1/16W
NC
R218 1K
+ C250
22uF/16V
R423
GND
1K 1/16W
STDBY
STDBY
R421 0
MUTE
MUTE
R420 0
C420 C421
0.1uF/16V 0.1uF/16V
GND GND
2003/02/21
EMI SOULATION NEW C421 & C420 104
C415
NC
13
P.4 LED_GREEN
+3.3V +5V
1
LED_ORANGE
P.4
R418 R417 R419
NC 220 1/16W NC
R415
Q402 1 LED_ORG
1K 1/16W
D402
NC
R424
ACER GM5120/2120
NC
Title
K.B AND CONNECTOR
Size Document Number
B
Date: Monday, May 12, 2003
JP403 JP404
0603 0603 VOL_OUT
VOL
VOL
VOL 3
3
3
U106F
74HCT14
R401
LED_GRN
12
C417
0 1/16W
NC
GND 1/10 GND
NEW ADD CIRCUIT FOR 4 LED 04/08
U106A
R402
74HCT14
2 LED_ORG
0 1/16W C419
NC
1/10
GND
NEW ADD CIRCUIT FOR 4 LED 04/08
Rev
715L1123-A A
Sheet 5 of 5