Benq corporation, Open – BenQ PB6200 User Manual
Page 106
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
LAMPLIT
RESETZ
LAMPEN
LAMPLITZ
Q4_C
SCL_F
SCL
SDA
LAMP-SYNC
SCL_F
FAN_P
SDA_F
SDA_F
LMAPLIT
3.3V
3.3V_D
RESETZ
LAMPEN
SDA
SCL
LAMPLITZ
GND
VDD
2V5_D
ECO-MODE
VDD_D
FAN_P
V12_D
3.3V
VDD_D
3.3V_D
3.3V
3.3V_D
VDD
3.3V
VDD
V12_D
VDD
VDD
VDD_D
2V5_D
LAMPLIT
LAMP-SYNC
SCL_F
SDA_F
LAMP-SYNC
LAMPLIT
SCL_F
SDA_F
Title
Size
Document Number
R ev.
Date:
Sheet
o f
Project Code
Reviewed By
Approved By
Prepared By
Model Name
PCB P/N
PCB Rev.
Benq Corporation
OEM/ODM Model Name
48.J8601.S04
MAIN BOARD
4
20
DAVID HN LIN
KELVIN LIAO
99.J8677.B12-C3-304-004
S04
ANGEL HU
PB6100
99.J8677.001
1
Tuesday, October 07, 2003
To repair lamp light detect signal from ballast before send to DDP1000 and main board.
L: Lamp on
H: Lamp off
L: Lamp on
H: Lamp off
3.3V for main board
3.3V for DDP1000
LAMPLITZ connected to NPN collection pin
and R6 change to 0 ohm
Generate 10mA and 0 mA to
ballast lamp sync signal
OPEN
L: Lamp on
H: Lamp off
OPEN
OPEN
L: ECO-MODE
H: Normal
C9
0.1U
25V Z
J704
20D0049108
1
2
3
4
5
6
7
8
R12
2K
Q6
MMBT2222A
1
3
2
TP243
R783
10K
J702
20D0038108
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
G1
G1
G2
G2
TP241
RC3
10K
R711
270
TP250
+
C828
10U M
20V
1
2
TP247
UL1
74AHC1G08
1
2
3
4
5
RC4
10K
C8
0.1U
25V Z
L712
80 OHM
CP8
0.1U
R7
1M
Q706
2N3904
1
3
2
R11
100
TP242
TP244
C823
0.1U K
C826
0.1U K
+
C7
22U
25V
1
2
CP1
0.1U
U4
LD1117-3.3V
GND
1
VOUT
2
VIN
3
VO
4
+
C820
10U M
20V
1
2
U52
74AHC1G08
1
2
3
4
5
TP248
TP251
U3
LD1117-3.3V
GND
1
VOUT
2
VIN
3
VO
4
L744
80 OHM
C827
0.1U K
Q1
MMBT2222A
1
3
2
TP245
UC2
PCA9515DP
NC
1
SCL0
2
SDA0
3
GND
4
VCC
8
SCL1
7
SDA1
6
EN
5
L710
80 OHM
L713
80 OHM
+
CP3
10U M
6.3V
1
2
TP249
TP252
L711
80 OHM
TP246
C824
0.1U K
R734
0
TP240
+
C821
10U M
20V
1
2
R735
0
R5
100KF
+
C829
22U
6.3V
1
2
L714
80 OHM
R784
10K