BenQ PB6100 Service Manual page 75

DMD Driver
1.LAMPEN Signal to Ballast.
2. 3.5s after LAMPLIT,DMD Become Active and
Display an Image .
Start
Yes
Power Voltage
Yes
DDP 1000
function
Yes
Peripheral
No
Hardware
Yes
Image Color
Yes
Image Quality
Yes
Lamp On
1.chk J702,2.5V(4,,5,6),5V(3),12V(1)
No
2.chk bead L710-L714,L44
1.chk clock frequency (unit:MHz)
a.Y901(30)b.Y5(20) C.UY1(100)
No
C.Motor Controller(8.33)
2.chk ACTDATA,POWERON,RESETZ,CLKIN,HSYNC,
VSYNC,SYNCVALID from Front End
3.chk CW spinning frequency 120Hz , if wrong, chk
MTRDATA , MTRCLK , MTRSELZ
.
1.chk CW spinning in cloclwise
No
2.chk CW tape position and width
3.chk cutrain displayed 220us after CW index
4.sequence color transition during CW spoke interval
1.Output from DAD1000 : VBIAS(22-25V),VRST(-26V),
No
VCC2(7.5V)
2.chk control signal of DMD chip from
U29(RN40,RN45)
3.chk data sequence from U29 to FPC(RN37~RN44)
4.chk JP2,JP3 soldering
1.chk CWINDEX
2.chk LAMPEN
No
3.chk LAMPLIT
75