BenQ PB6100 Service Manual page 113

A
4
POWERON
7
POWERON
6
4
Y3 U25_X1
1
U25_X2
8
16.257MHZ
R115
820K
C125 C126
10P D 10P D
3
OPEN
3.3V
U18
5
A2
6
A1
7
A0
2
VDD
RK3 O PEN
R95
R94
4.7K
680K
C91
470N M
1
Note: keystone function IC and thermal senser IC, those two component should be placement as closed as possible.
A
B
3.3V
C122
U25
0.1U
2
OE VDD
S0
RD CK R113 22 DCKEXT
5
S1 CLK
X1
3
X2 GND
ICS501
L29 Z10
68.00129.0D1
G751-2
1
SDA SDA
2
SCL
SCL
S01 version I2C bus reversed and Pin8 connected to VDD
3
O.S.
new version change to 3.3V
8
3.3V
VCC
C89
0.1U
VDD
RK4 O PEN
RK5 O PEN
7
XFILT
R93 0
6 5
YFILT XOUT
1
ST
2
T2
R92 O PEN
4
YOUT
8
VDD
3
COM
RK2 O PEN
C92 C93 U19
CK1 0.1U
470N M 0.1U
ADI: RK1, RK2, RK3, RK4, R92 OPEN
MEMSIC: R93, C91, R94, R95, R92, RK1, OPEN;
B
C
65MHz
Y2
DCKEXT
16.257MHZ
820K
GND
KEYSTON_A
VDD
RK2, RK3, RK4 0ohm
C
D
3.3V
C121
0.1U
3.3V
U24
7 2
OE VDD
6
S0
RMCK R112
4 5
S1 CLK
U24_X1
1
X1
U24_X2 L28 Z10
8 3
X2 GND
68.00129.0D1
ICS501
R114
C123 C124
10P D 10P D
OPEN
RK7 0
VDD
RK8 0
3.3V
CP6
0.1U
25V Z
U20
1
KEYSTON_A
RK1
4
2
74AHC1G08
Benq Corporation
Project Code
Title
Size
PCB P/N
<Size>
Date:
Prepared By
D
E
3.3V
130MHz/41MHz
22 MCKEXT
MCKEXT
3.3V
RK9
4.7K
0
KEYSTONE
Model Name OEM/ODM Model Name
<OEM/ODM>
99.J8677.001 PB6100
MAIN BOARD
PCB Rev. Document Number
48.J8601.S04 S04 99.J8677.B12-C3-304-004
Tuesday, October 07, 2003
Sheet 11 o f 20
Reviewed By Approved By
ANGEL HU DAVID HN LIN KELVIN LIAO
E
4
3
2
1
R ev.
1