4 Removing the speaker fan and power supply ballast unit

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Remove 2 fans for the power supply ballast unit and 1 fan for the optical mechanism unit. 4-3. Remove 2 bimetal fixing screws to detach the bimetal. 4-4. Remove 2 lamp socket fixing screws to detach the lamp socket. 4-6. Remove 4 ballast unit fixing screws to detach the power supply ballast unit. 4-7. Remove 4 ballast shield (upper) fixing screws to detach the ballast shield (upper). 4-8. Remove 2 ballast PWB fixing screws and 1 clip to detach the power supply PWB unit from the ballast...

The Optical Unit Outline

Layout for proper setup of the optical components and parts (top view) (Schematic diagram) Light source. DC high-pressure mercury lamp. Filters out harmful UV and IR rays from the lamp. Splits light from the light source into R, G, B and W through a color filter. Reflects light from the illumination lenses toward DMD. Condenses the light from the reflection mirror to the DMD and the pupil of the Turns the internal micromirror ON OFF at the rate of color component of each dot of the input source...

Connection Pin Assignments

Sub Pin Din Assignment

COMPUTER-RGB COMPONENT INPUT1, 2 and COMPUTER-RGB COMPONENT OUTPUT Terminals Video input green sync on green Video input blue Not connected Not connected Earth red Earth green sync on green Earth blue Not connected GND Not connected Bi-directional data Horizontal sync signal TTL level Vertical sync signal TTL level Data clock PB CB Not connected Not connected Earth PR Earth Y Earth PB Not connected Not connected Not connected Not connected Not connected Not connected Not connected...

Description Of Schematic Diagram

Voltages at test points are measured at the supply voltage of AC 220V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm V tester. 1. Waveforms at test points are observed at the supply voltage of AC 220V. Signals are fed by a color bar signal generator for servicing purpose. INDICATION OF RESISTOR amp CAPACITOR RESISTOR 1. The unit of resistance Q is omitted. K kQ 1000 Q, M MQ . 2. All resistors are 5 , unless otherwise...

Electrical Adjustment

Epson Ballast Unit

Turn on the power with the lamp on and warm up the set for 15 minutes. Press S2551 to call the process mode and execute SS2 on SS menu. Process menu 1. Select the following group and subject. Group CONFIRM Subject MODEL 1. Signal input Send 256 STEP color bar. XGA series XGA60HZ , SVGA series SVGA60HZ 2. Select the following group and subject. 2. Select the adjustment item and adjust the lamp gradation patterns of RGBW so that smooth patterns without noise appear. R G B contrast adjustment...

Rc Unit

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BALLAST POWER Unit Chip Parts Side-B BALLAST CONTROL Unit Chip Parts Side-A BALLAST CONTROL Unit Chip Parts Side-B PHOTOSENSOR Unit Chip Parts Side-B Parts marked with A are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set. To have your order filled promptly and correctly, please furnish the following informations. 2. REF. NO. 4. DESCRIPTION 6. QUANTITY Contact your nearest SHARP Parts...