Acer AL1702 Manual de serviço - Página 43
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Schematic Diagram
Main Board
CN201
1
CMVCC
2
3
CMVCC
4
CMVCC
BKLT-VBRI
5
DIM#
BKLT-EN
6
C_PANEL_INDEX
7
PANEL_ID#
8
Volume#
Volume#
9
Mute
Mute
CONN
Panel ID(3.3V PWM)
Back light
Dimming(3.3V PWM)
CN202
1
2
3
4
5
6
CONN
ZD202
C209
ZD203
C201
NC
NC
0.1uF/16V
0.1uF/16V
Near to Connect
MVCC
{4}
CMVCC
{4}
FB201
{4}
{4}
120
C202
C204
+
100uF/25V
'07-01-10 change to Elite
0.1uF/16V
* BKLT-EN High ON(3.3V)
'06-11-3 Remove R209(470 ohm)
KEY 0
KEY 0
KEY 1
KEY 1
POWER_KEY #
POWER_KEY # {4}
LED_G
LED_R
'06-12-29-3 Remove R211,R212(470ohm)
ZD201
C210
NC
0.1uF/16V
FB202
NC
VCC3
U201
3
2
VIN
VOUT
AP1117E33LA
C205
C203
+
100uF/25V
0.1uF/16V
'07-01-10 change to Elite
VCC3
R202
4K7 1/16W
BKLT-EN
R201
200
1/16W
C206
Q202
0.1uF/16V
PMBS3904
{4}
{4}
43
INV_ON#
{4}
VCC3
R207
R208
'06-12-29-3 Change R207,R208 Value
120R 1/16W
120R 1/16W
from 470ohm to 120ohm
Q204
PMBS3906
R210
10K 1/16W
LED_R#
LED_R
R213
10K 1/16W
Q205
LED_G
PMBS3906
Title
Size
Document Number
B
Date:
Wednesday , March 07, 2007
Chapter 7
{4}
LED_G#
{4}
POWER
Rev
2
G2498-A-AC-X-1-070307
Sheet
2
of
6