BenQ PB6100 Service Manual page 114

A
4
LED[5:0]
RN725 120 OHM
LED0
8 1
LED1
7 2
LED2
6 3
LED3
5 4
LED4
8 1
LED5
7 2
6 3
5 4
RN728 120 OHM
KEY0 RN726 120 OHM
KEY1
8 1
KEY2
7 2
KEY3
6 3
KEY4
5 4
KEY5
8 1
3
KEY6
7 2
KEY7
6 3
5 4
KEY[7:0]
RN727 120 OHM
KEY8
KEY8
C801
470P K
KEY[7:0]
2 KEY[7:0] 3.3V
KEY0
KEY1
KEY2
KEY3
KEY4
KEY5
KEY6
KEY7
CS0n
CS0n
GND
1
A
B
VDD
C812
R744
TP231
0 0.1U
TP232
C811 0.1U
TP34
TP35 TP233
1
2
3
TP36
4
TP37
5
6
TP38
7
8
9
TP39
10
TP40
11
TP41
77.62203.0C1
12
TP42
13
TP43
14
TP44
15
TP45
16
TP46
17
TP801
18
19
20
J4 20L2021020
R745
0
77.62203.0C1 77.62203.0C1
3.3V
D[0:7]
D[0:7]
C127
0.1U
U27
D0
2 18
1A1 1Y1
D1
4 16
1A2 1Y2
D2
6 14
1A3 1Y3
D3
8 12
1A4 1Y4
D4
11 9
2A1 2Y1
D5
13 7
2A2 2Y2
D6
15 5
2A3 2Y3
D7
17 3
2A4 2Y4
1
1G
19
2G
74AHC244
B
C
VDD
IR receiver circuit
FM-6038LM-5A
U6
R15 47 IRV CC IROUT R23
VDD
C12
4.7U Z
OPEN
TP947
TP948
J913
IRRCVR1
TP949
IROUT R957 0
1
2
IRRCVR2
IRV CC R958 0
3
20D0049103
In version 2 PCB the power for this block is VDD_D but it
is floating. I version 3 schematic we change to VDD net
for this block power source.
3.3V
D[0:7]
D[0:7]
CP7
0.1U
U28
D0 LED0
3 2
D1 Q1
D1 LED1
4 5
D2 Q2
D2 LED2
7 6
D3 Q3
D3 LED3
8 9
D4 Q4
D4 LED4
13 12
D5 Q5
D5 LED5
14 15
D6 Q6
D6
17 16
D7 Q7
D7
18 19
D8 Q8
11
CS1n CLK
1
RESETn
CLR
74LVC273
C
D
VDD
240 OHM
L801 R857
IRRCVR2
L802 R858
VDD
R22 240 OHM
10K
510
IRRCVR1
VDD
U7
IRRCVR1
1
4
IRRCVR2
2
74AHC1G08
LED[5:0]
Benq Corporation
Project Code
99.J8677.001
Title
Size
PCB P/N
<Size>
48.J8601.S04
Tuesday, October 07, 2003
Date:
Prepared By
ANGEL HU
D
E
4
TP47
TP48
J813
TP49
0
1
2
0
3
4
20L2021004
470P K
R813
0
3
IRR CVR
IRRCVR
2
Model Name OEM/ODM Model Name
<OEM/ODM>
PB6100
1
MAIN BOARD
PCB Rev. Document Number R ev.
1
S04 99.J8677.B12-C3-304-004
Sheet 12 o f 20
Reviewed By Approved By
DAVID HN LIN KELVIN LIAO
E