Sanyo PDG-DWT50L - WXGA DLP Projector Manual de usuario

Multimedia Projector

SERVICE MANUAL

PRODUCT CODE

1 122 412 20 (KW3AL)

1 122 413 20 (LW3AL)

Original Version

REFERENCE NO. SM5110921-00

FILE NO.

Model No. PDG-DWT50L

U.S.A, Canada,

Europe, U.K, Asia

Chassis No. KW3-DWT50L00

Match the Chassis No. on the unit's back cover with the

Chassis No. in the Service Manual.

If the Original Version Service Manual Chassis No. does

not match the unit’s, additional Service Literature is re-

quired. You must refer to “Notices” to the Original Service

Manual prior to servicing the unit.

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PDG-DWT50L

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CONTENTS

1. COMPLIANCE OF SAFE REPAIR .........................................................…………………………………….……5

1-1. Caution during disassembling and assembling ..................………………………………………….……5

1-2. Lamp .......... ..............................................................……………………………………………………….….5

1-3. Lens ............................................................………………………………………………………………….….5

2. SPECIFICATIONS .........................................................……………………………………………………………6

2-1. Optical Specifications ……………………………………………………………………………………………6

2-2. Electrical Specifications …………………………………………………………………………………………7

2-3. Mechanical Specifications …………………………………………………………………………………...….8

2-4. Environmental Considerations ……………………………………………………………………………..….8

2-5. Regulations …………………………………………………………………………………………………..……8

2-6. Block Diagram ………………………………………………………………..……………………………..……9

2-7. Explanation of the block diagrams …………………………………………...………………………………10

2-8. Wire Location ………………………………………………………………..….……………………………….12

3. TROUBLE SHOOTING ……………………………………………………………………………….………………13

3-1. Operation check ………………………………………………………..……………………………………….13

3-2. Main Board check ……………………………………………………………………………………………….14

3-3. LED State Indications ………………………………………………………….………………………………..16

4. DISASSEMBLY AND ASSEMBLY ………………………………………….……………………………………….17

5. ADJUSTMENT………………………………………………………………………………………………………….44

5-1. Step of Into Service mode………………………………………….…………………………..……………….44

5-2. Calibrate VGA (1024 x 768 @ 60Hz)………….....................................................................……………..45

5-3. Calibrate YUV…………………………………………………………………………………….……………….46

5-4. Calibrate Video……………………………………………………………………………………………….…..47

5-5. Color Wheel Index Adjustment……………………………………………………………….………………..50

5-6. Focus Adjustment………………………………………………………………………………………………..52

6. SECURITY NOTICE…………………………………………………………………………………………………...59

6-1. Preventing the Unauthorized Use of the Projector……………………………..………………………….59

6-2. Unlocking the Projector…………………………………………………………………………………..…….61

6-3. Security Function Notice……………………………………………………………………………………….61

7. Circuit Protections …………………………………………………………………………………………………...62

7-1. Fuse ………………………………………………………………………………………………………………..62

7-2 Thermostat ………………………………………………………………………………………………………...63

7-3 Bimetal ……………………………………………………………………………………………………………..64

PDG-DWT50L

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7-4 Lamp Interlock Switch …………………………………………………………………………………………..65

7-5 Lamp Door Interlock Switch …………………………………………………………………………….……..66

8. Maintenance …………………………………………………………………………………………………………...67

8-1 Cleaning the projector …………………………………………………………………………………………..67

8-2 Replacing Consumable Parts ………………………………………………………………………………….71

9. Factory Preset Display Modes ……………………………………………………………………………………..79

10. Required adjustments when the parts replaced ………………………………..……….….…………………81

11. Spare part list………..….…………….…..……………………………………………………….…………………82

PDG-DWT50L

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1.COMPLIANCE OF SAFE REPAIR

Be sure to read this Service Manual before providing services. In the projector, full consideration is taken

to ensure the safety for a fire, electric shock, injury, harmful radiation, and substance. Therefore, observe the

notice described in this Service Manual so that the safety is kept when providing services. Moreover, be sure to

observe the notice described in the Instruction Manual.

Pay attention to the following during service inspection.

1-1. Cautions during disassembling and assembling

1.This equipment contains parts under high voltage. When making repairs, etc. Be sure to pull out the power

plug beforehand to insure safety.

2. Parts may be very hot immediately after use. Make sure the equipment has cooled off sufficiently before

carrying out repairs.

3. Make sure that parts and screws and wiring, etc. are returned to their original positions. Tube, tape and

other insulation materials have been used for safety reasons. The internal wiring has been designed to

avoid direct contact with hot parts or parts under high voltage when using clamps or other tools.

4. The parts used in this device have special safety features such as flame-resistance and anti-voltage

properties. When replacing parts, always use parts supplied from the factory.

5. After finishing operations make sure that all parts and wires have been returned to their original position

and that there has been no deterioration of the area around the location that was worked on.

6. Be sure to use an earth band (wrist band) during repair and inspection.

1-2. Lamp

During current conduction, the lamp is in the high-temperature state. In this case, pay careful attention

because a high voltage is used. When replacing a lamp, replace it after confirming that the lamp has gotten

cold sufficiently.

1-3. Lens

Do not look through a lens during projection. This damages your eyes.

PDG-DWT50L

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2. SPECIFICATIONS

This section provides technical information about the projector's performance.

2-1 Optical Specifications

Item Description

Projection system Single DLP®chip, 4 segment color wheel

Resolution 1280x768 pixels* (up to UXGA 1600*1200 @ 60 Hz) <170MHz>

Lamp 260 W AC (230 W in Eco mode), Dual lamp system

Image size (diagonal) 50" - 200" / 1.27m - 5.08m (LNS-W41)

40" - 500" / 1.02m – 12.7m (LNS-W40, LNS-S40, LNS-T40, LNS-T41)

Lens options

LNS-W41: Power focus, throw ratio 0.77:1, F2.0, f=11.4 mm

LNS-W40: Power zoom and focus,

throw ratio 1.33-1.79:1, F1.8-2.3, f=19.3-25.8 mm

LNS-S40: Power zoom and focus, throw ratio 1.78-2.35:1, F1.7-1.9, f=26-34 mm

LNS-T40: Power zoom and focus, throw ratio 2.22-4.43:1, F2.1-2.9, f=32-63 mm

LNS-T41: Power zoom and focus,

throw ratio 4.43-8.3:1, F2.2-3.1, f=63.5-117.4 mm

Lens shift Vertical + 0.5V, Horizontal +/- 0.1H (LNS-W40, LNS-S40, LNS-T40, LNS-T41)

*Effective pixels are more than 99.99%

PDG-DWT50L

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2-2

Electrical Specifications

Item Description

Inputs

1 Analog RGB (Mini D-Sub 15P), 1 Analog RGB R/Cr, G/Y, B/Cb, H, V

(BNC x 5), 1 Digital RGB (DVI-D 24P), 1 Component Y, Cb/Pb, Cr/Pr

(RCA x 3), 1 Component (Mini D-Sub 15P) shared with COMPUTER 1

IN, 1 S-Video (Mini DIN 4P), 1 Video, 3 Stereo Mini Audio, 2

(L/R) RCA Audio, 1 Remote Control (Stereo Mini)

Outputs 1 RGB (Mini D-Sub 15P), 1 Stereo Mini Audio, 1 Screen Trigger

Control 1 PC Control Port (D-Sub 9P), 1 GPIO (Mini D-sub 15P)

USB Port 1 B Type (for Service)

LAN Port RJ-45

Video Compatibility NTSC, NTSC4.43, PAL, PAL-60/N/M/B/G/H/I), SECAM, HDTV: 1080i, 720p,

SDTV: 576p, 576i, 480p, 480i

Scan Rate Horizontal: 15 kHz, 31 to 90 kHz (RGB: 31 kHz or over) Vertical: 50 Hz to 85 Hz

Video Bandwidth RGB: 100 MHz (-3dB)

Color Reproduction 16.7 million colors simultaneously, Full color

Horizontal Resolution NTSC / NTSC4.43 / PAL / PAL-M / PAL-N / PAL60: 540 TV lines

SECAM: 300 TV lines

RGB: 1024 dots (H) x 768 dots (V)

External Control RS232, IR, LAN, GPIO

Sync Compatibility Separate Sync / Composite Sync / Sync on G

Built-in Speakers 3W x 2

Power Requirement 100 - 240V AC, 50/60Hz

Input Current 7.7A

Power Consumption

655W in Dual Lamp Normal mode / 580W in Dual Lamp Eco mode

350W in Single Lamp Normal mode / 315W in Single Lamp Eco mode

< 30W in Standby mode Normal

< 5W in Standby mode Power saving

PDG-DWT50L

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2-3 Mechanical Specifications

Item Description

Dimensions

19.9" (W) x 7.6" (H) x 15.2" (D)

505 mm (W) x 192 mm (H) x 385 mm (D)

(not including protrusions)

Weight 36.4 lbs/16.3 kg

2-4 Environmental Considerations

Item Description

Operational Temperatures 41° to 104°F / 5° to 40°C, 10% to 90% humidity (non-condensing)

Storage Temperatures 14° to 140°F (-10° to 60°C), 5% to 90% humidity (non-condensing)

2-5 Regulations

UL/C-UL Approved (UL 60950-1, CSA 60950-1)

S-UL,PSE(J60950)

CCC(GB4943,GB9254,GB17625.1)

EK(K60950-1)

CB(IEC60950-1)(Deviation:Semko)edition.1

Meets FCC part15 subpartB Class B,IECS-003 classB requirements

z(EN55022, EN55024, EN61000-3-2, EN61000-3-3)

zC-TICK(AS/NZS CISPR.22 Class B)

zVCCI Class B,JIS C 61000-2-3

PDG-DWT50L

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2-6 Block Diagram

0.65’’ LVDS

WXGA DMD

PDG-DWT50L

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2-7 Explanation of the block diagrams.

2-7-1 Input signal processing

1-1.RGB & Component & DVI input system

The RGB(5BNC) and COMPONENT input signals are led through the multiplexer

circuit. After these signals and DVI signal have been converted into 10-bit digital signals

of RGB each at the A/D converter (U201) incorporated in the VIDEO amplifier, the

resultant signals are output to the scaler (U400).

1-2.Video input system

The VIDEO input and S-VIDEO input signals are decoded into the Y/CbCr (brightness

and chroma) signals at the video decoder (U702). The decoded signals are further

converted into 10-bit digital signals of Y/ CbCr, and then output to the scaler (U400).

2-7-2 Digital video signal processing

2-1.Scaler (U400)

• The Y/CbCr signals are processed for picture quality improvement and matrix

processing at the Scaler circuit, and then converted into the RGB signals.

• The RGB and VIDEO input signals are switched over at the selector. After passing

through the signal adjusting circuit of color space processing, auto-adjustment, etc.,

these signals are written in the RLDRAM.

• The video signals called up from the RLDRAM, pass through the definition converter

circuit, ON-screen display, error diffusion circuit for DLP, V-T compensator circuit, and

such signal processing circuits, and are then output to the optical engine unit (DLP

formatter board).

• In the frame memory consisting of the RLDRAM and the FIFO located in the scaler,

frequency conversion is conducted for the WRITE system and the READ system.

Therefore, the video signals can be output to the optical engine unit (DLP formatter

board) always at the constant timing.

• According to the conditions of projector installation, the trapezoidal distortion

compensation of the video signals are also effected through the frame memory.

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