Toshiba P600DL service manual

Page 39

(3)Verify HSYNCZ,VSYNCZ,ACTDATA, SYNCVALID(HI Active) control signal

4.Verify U74A PIN1 Running at 120HZ. If no color wheel spinning, check U71 data transfer on the following line MTRDATA,MTRCLK,MTRSELZ.

5.Verify motor spinning line from micro-controller U71 (PIN51) to FPGA(U76 PIN 126) is Hi.

6.Verify hardware LAMPEN (U76 PIN168) is Hi (3.3v).

7.Check LAMPLIT is Hi.

8.If everything else verified, but still no image, perform the following check

(1)Check DMD voltage at output of generation circuits, but also out of U88 (DMDSR16) IC (be careful not to probe on pins r the device could be damaged) VBIAS(22-25V), VRESET(-26V), VCC2(7.5V).

(2)Check voltage enable form FPGA are active as appropriate. If not, output Driver may be blown from previous probing.

(3)Be sure two reset lines are not tied together or the device will be damaged.

(4)Verify I2C communication by reading system status and micro-controller version.

9.Be sure front end electronics are sending one pixel per clock.

10.Elastomer and DMD are aligned properly to pads.

11.Check data transfer on the following lines: PBCLKZ, PBDAT0, PBDAT1.

12.If Color wheel has difficulty in starting or is unstable, the capacitors may need to be adjusted to match the motor parameter.

38

Page 38 Page 40
Image 39
Page 38 Page 40
Contents P600DL Safety Precaution Contents Safety Precautions for User For use of the equipment For servicing, maintenance and inspection Safety Precautions for User Request to User Precautions for USE and MaintenanceGeneral Descriptions Features Dimensions BNC Function of I/O PanelFunction of Power Panel Power Switch and Power IndicatorON/OFF Specifications Acceptable Signal Type Horizontal Timing Vertical Timing Acceptable RGB Input Signal TimingConnection AT a Multi Projection System Unit-4Unit-3HOW to Replace the Lamp DisassemblyDiassembly ．LOCATION of KEY Components and Function Module Power Supply Module Ballast Module Control ModuleExploded View of the Projection Block 96pin connector ．EXPLODED View of the Screen Block and Cabinet ．WIRING Adjustment ．ENGINE Mount Adjustment Adjustment Adjustment Adjustment Colour , Tint Multiple Screen Wall system example Electronic Circuit Explanation Electric Circuit Explanation FAN Stop Power FAN LampPower on StanbyAppendix-2 Cont VN2 ID.CLR DMD Driver Board Debug Page DMD Driver Board Debugging Flow DiagramBad image- Horizontal bands or lines Image shifted to left Parts List Location No Description 94800807 Ballast Module Assy 100W
Top Page Image Contents