Sanyo PLC-SU50 Bedienungsanleitung

Multimedia Projector

SERVICE MANUAL

PRODUCT CODE

1 122 219 00 (MB7A)

1 122 220 00 (PB7A)

1 122 220 02 (PB7C)

Original Version

REFERENCE NO. SM5110518-00

FILE NO.

Model No. PLC-SU50

U.S.A., Canada,

Europe, Asia, Africa

U.K.

Chassis No. MB7-SU5000

NOTE: 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 required.You must refer to

“Notices” to the Original Service

Manual prior to servicing the unit.

-18-

■Optical Adjustments

[Before Adjustment]

- Input a 100% of black raster signal.

1Loosen a screw A(Fig.1-1/1-2) on the polarized glass mounting

base which you intend to adjust.

2Turn the polarized glass mounting base as shown in Fig.1-1 to

obtain the darkest brightness on the screen.

3Tighten the screw Ato fix the polarized glass mounting base.

Repeat steps 1 to 3 for remaining polarized glasses.

B-Polarized Glass

Mounting Base

R-Polarized Glass

Mounting Base

G-Polarized Glass

Mounting Base

Fig.1-2

Fig.1-1

Polarized glass

mounting base

Main Board

Contrast adjustment

Before taking optical adjustments below, remove the Cabinet Top following to the “Mechanical Disassemblies”.

Adjustments require a 2.0mm hex wrench and a slot screwdriver. When you adjust Integrator lens or Relay lens

adjustment, you need to disconnect FPC cables of LCD panels on the main board.

Optical adjustment requires a 2.0mm hex wrench and a slot screwdriver.

Note: Do not disconnect connectors on the main board, because the projector cannot turn on due to operate the

power failure protection.

-19-

1 Turn the projector on by a state of without FPC cables.

2 Project all of lights on the screen.

3 Adjust the adjustment base of integrator lens assy to make color

uniformity in white.

1) If the shading appears on the left or right of the screen as

shown in Fig.2-1, loosen 2 screws A, and adjust the slot Bto

make color uniformity in white by using a slot screwdriver.

2) If the shading appears on the top or bottom of the screen as

shown in Fig.2-2, loosen 2 screws C, and adjust the slot Dto

make color uniformity in white by using a slot screwdriver

4 Tighten screws Aand Cto fix the Integrator lens unit.

Note:

The relay lens adjustment must be carried out after completing this

adjustment.

Optical Adjustments

Integrator lens adjustment

Fig.2-2

Moving of Slot D

Slot D

Moving of slot B

Fig.2-1

Slot B

White

-20-

1Turn the projector on by a state of without FPC cables.

2 Project all of lights on the screen.

3Adjust the adjustment base of relay lens assy to make color unifor-

mity in white.

If the shading appears on the left or right of the screen as shown in

Fig.3, loosen 1 screw A, and adjust the slot Bto make color unifor-

mity in white by using a slot screwdriver.

4Tighten the screws Ato fix the relay lens unit.

Fig.3

Slot B

Moving of slot B

White

Relay lens-Out adjustment

Optical Adjustments

-21-

To enter the service mode

To enter the “Service Mode”, press and hold the MENU and INPUT buttons on the projector at the same time for

more than 3 seconds. The service menu appears on the screen as follows.

To adjust service data

Select the adjustment group no. by pressing the MENU (+) or KEYSTONE (-) button, and select the adjustment

item no. by pressing the pointer UP or DOWN button, and change the data value by pressing the VOLUME – or

VOLUME + button.Refer to the “Service Adjustment Data Table” for further description of adjustment group no.,

item no. and data value.

To exit the service mode

To exit the service mode, press the POWER ON-OFF button on the projector or remote control unit.

●Service Adjustment Menu Operation

IC1801 on the main board stores the data for the serv-

ice adjustments, and should not be replaced except for

the case of defective device.

If replaced, the re-adjustments are required following to

the “Electrical Adjustments”.

The data of lamp replacement counter is stored in the

IC1801.

Please note that the lamp replace counter will be reset

when the memory IC (IC1801) is replaced.

(Lamp replace counter cannot be set to the previous

value.)

● Caution to memory IC replacement

When IC1801 is replaced with new one, the CPU

writes down the default data of the service adjustments

to the replaced IC as the mentioned on the service

adjustment table. As these data are not the same data

as factory shipped data, it should be required to per-

form the re-adjustments following to the “Electrical

Adjustments”.

Please note that in this case the lamp replace counter

will be reset.

● Caution of Main Board replacement (in the case

Ic1801 is not defective)

When the main board is replaced, IC1801 should be

replaced with the one on previous main board. After

replacement, it should be required to perform the re-

adjustments following to the “Electrical Adjustments”.

In this case, the lamp replace counter can be kept the

value as before.

● Memory IC Replacement

ON -OFF

POWER

KEYSTONE

INPUT

WARNING

LAMP

REPLACE

–

SELECT

Service Mode

Input Video

Group No. Data

0032

Ver. 1 .00

Data value

Item No.

■Electrical Adjustments

Group No.

-22-

[Adjustment Condition]

●Input signal

Video signal .......................... 1.0Vp-p/75Ωterminated, 16 steps gray

scale (Composite video signal)

Computer signal .................... 0.7Vp-p/75Ωterminated, 16 steps gray

scale pattern

Component Video signal ...... 0.7Vp-p/75Ωterminated, 16 steps gray

scale (Component video signal with

480p, 575p, 720p or 1080i format)

●Picture control mode .............. “STANDARD” mode unless otherwise

noted.

Note:

* Please refer to “Service Adjustment Menu Operation” for entering the service mode and adjusting the service

data.

White 100% Black 100%

●Circuit Adjustments

CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow-

ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of per-

formance and product safety.

Electrical Adjustments

16 steps gray scale pattern

After replacing the Power Board readjust the Output

voltage adjustment as follows.

1. Connect a digital voltmeter to pins 1 (+) and 3 (-) of

K6D.

2. Adjust the voltage by using VR611 as following.

AC Input Reading

230V 380V ±2V

Caution:

Be sure to connect the lamp when taking this adjust-

ment.

Output Voltage adjustment

1. Set the lamp mode to "Normal" and then enter the

service mode.

2. Select group no. “111”, item no. “5”and set data value

to “1”.

3. Connect a digital voltmeter to test point “TP12V1”(+)

and chassis ground (-). Select item no. “89”and

change data value to adjust voltage to be 7.0 ±0.1V.

4. Connect a digital voltmeter to test point “TP12V2”

(+) and chassis ground (-). Select item no. “91”and

change data value to adjust voltage to be 7.0 ±0.1V.

5. Connect a digital voltmeter to test point “TP12V1”(+)

and chassis ground (-). Select item no. “90”and

change data value to adjust voltage to be 13.5 ±0.1V.

6. Connect a digital voltmeter to test point “TP12V2”(+)

and chassis ground (-). Select item no. “92”and

change data value to adjust voltage to be 13.5 ±0.1V.

7. Select item no. “5”and set data value to “0”.

zFan Control adjustment

* This adjustment is not required even if the power

board is replaced because this adjustment is carried

out before parts shipment.

-23-

Electrical Adjustments

1. Receive the 16-step grey scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+) and

chassis ground (-).

4. Select group no. “0”, item no. “0”and change data

value to adjust the pedestal level and black level to be

the same level.

5. Connect an oscilloscope to test point “TPR1”(+) and

chassis ground (-).

6. Select item no. “1”and change data value to adjust the

pedestal level and black level to be the same level.

7. Connect an oscilloscope to test point “TPB1”(+) and

chassis ground (-).

8. Select item no. “2”and change data value to adjust the

pedestal level and black level to be the same level.

Pedestal Lebel

Black Lebel

xClamp adjustment [PC]

1. Receive the 16-step grey scale component signal

with Computer2 [Component] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+) and

chassis ground (-).

4. Select group no. “0”, item no. “0”and change data

value to adjust the pedestal level and black level to be

the same level.

5. Connect an oscilloscope to test point “TPR1”(+) and

chassis ground (-).

6. Select group no. “0”, item no. “1”and change data

value to adjust the pedestal level and black level to be

the same level.

7. Connect an oscilloscope to test point “TPB1”(+) and

chassis ground (-).

8. Select group no. “0”, item no. “2”and change data

value to adjust the pedestal level and black level to be

the same level.

Pedestal Lebel

Black Lebel

vClamp adjustment [COMPONENT]

1. Receive the 16-step gray scale composite video sig-

nal with Video [Video] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+) and

chassis ground (-).

4. Select group no. “0”, item no. “0”and change data

value to adjust the pedestal level and black level to be

the same level.

5. Connect an oscilloscope to test point “TPR1”(+) and

chassis ground (-).

6. Select item no. “1”and change data value to adjust the

pedestal level and black level to be the same level.

7. Connect an oscilloscope to test point “TPB1”(+) and

chassis ground (-).

8. Select item no. “2”and change data value to adjust the

pedestal level and black level to be the same level.

Pedestal Lebel

Black Lebel

cClamp adjustment [AV]

-24-

Electrical Adjustments

1. Receive the 16-step grey scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode

3. Connect a digital voltmeter to test point “TPG1”(+)

and chassis ground (-).

4. Select group no. “10”, item no. “0”and change data

value to adjust the voltage to be 7.50 ±0.05V.

5. Connect a digital voltmeter to test point “TPR1”(+)

and chassis ground (-).

6. Select item no. “1”and change data value to adjust

the voltage to be 7.50 ±0.05V.

7. Connect a digital voltmeter to test point “TPB1”(+)

and chassis ground (-).

8. Select item no. “2”and change data value to adjust

the voltage to be 7.50 ±0.05V.

mVideo Center adjustment

1. Receive the 16-step grey scale composite video sig-

nal with Video [Video] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+)

and chassis ground (-).

4. Select group no. “9”, item no. “1”and adjust the ampli-

tude “a” to be minimum by changing the Data value.

5. Connect an oscilloscope to test point “TPR1”(+) and

chassis ground (-).

6. Select item no. “2”and adjust the amplitude “a” to be

minimum by changing the Data value.

7. Connect an oscilloscope to test point “TPB1”(+) and

chassis ground (-).

8. Select item no. “3”and adjust the amplitude “a” to be

minimum by changing the Data value.

(a)

White Level

6n Sub Gain adjustment [Video]

1. Receive the 16-step grey scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+)

and chassis ground (-).

4. Select group no. “9”, item no. “1”and adjust the ampli-

tude “a” to be minimum by changing the Data value.

5. Connect an oscilloscope to test point “TPR1”(+) and

chassis ground (-).

6. Select item no. “2”and adjust the amplitude “a” to be

minimum by changing the Data value.

7. Connect an oscilloscope to test point “TPB1”(+) and

chassis ground (-).

8. Select item no. “3”and adjust the amplitude “a” to be

minimum by changing the Data value.

(a)

White Level

bSub Gain adjustment [PC]

1. Receive the 16-step gray scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPPSIG”(+)

and chassis ground (-).

4. Select group no. “10”, item no. “14”and adjust the

amplitude “a” to be 10.0 ±0.1V by changing the Data

value.

5. Select item no. “17”and adjust the amplitude “b” to be

3.8 ±0.1V by changing the Data value.

3. Connect an oscilloscope to test point “TPZPSIG”(+)

and chassis ground (-).

4. Select group no. “10”, item no. “12”and adjust the

amplitude “a” to be 10.0 ±0.1V by changing the Data

value.

5. Select item no. “15”and adjust the amplitude “b” to be

3.8 ±0.1V by changing the Data value.

(a)

(b)

,PSIG adjustment

-25-

Electrical Adjustments

t1. Receive the 1 line black/white pattern computer sig-

nal with Computer2 [RGB] mode.

2. Enter the service mode.

3. Project only green light component to the screen.

4. Select group no. “10”, item no. “9”and change data

value to obtain the minimum flicker on the screen.

5. Project only red light component to the screen.

6. Select item no. “10”and change data value to obtain

the minimum flicker on the screen.

7. Project only blue light component to the screen.

8. Select item no. “11 and change data value to obtain

the minimum flicker on the screen.

⁄0 Common Center adjustment

[PC WHITE BALANCE ADJUSTMENT]

1. Receive the 16-step gray scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode, select group no. “9”item no.

“11”(Red) or “12”(Blue), and change Data values

respectively to make a proper white balance.

[AV WHITE BALANCE ADJUSTMENT]

1. Receive the 16-step gray scale composite video sig-

nal with Video [Video] mode.

2. Enter the service mode, select group no. “9”item no.

“11”(Red) or “12”(Blue), and change Data values

respectively to make a proper white balance.

Confirm that the same white balance is obtained in

video and computer input.

⁄2 White Balance adjustment

If you find the color shading on the screen, please

adjust the white uniformity by using the proper comput-

er and “Color Shading Correction” software supplied

separately.

The software can be ordered as follows;

COLOR SHADING CORRECTION ver. 3.0

Service Parts No.645 056 6288

NOTE ON WHITE UNIFORMITY

ADJUSTMENT

1. Receive the 16-step grey scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+)

and chassis ground (-).

4. Select group no. “10”, item no. “3”and change data

value to adjust amplitude “a” to be 9.8 ±0.1V.

5. Connect an oscilloscope to test point “TPR1”(+) and

chassis ground (-).

6. Select item no. “4”and change data value to adjust

amplitude “a” to be 9.8 ±0.1V.

7. Connect an oscilloscope to test point “TPB1”(+) and

chassis ground (-).

8. Select item no. “5”and change data value to adjust

amplitude “a” to be 9.8 ±0.1V.

(a)

black level

.Black Reference adjustment

[PC-GAMMA ADJUSTMENT]

1. Receive the 16-step grey scale computer signal with

Computer2 [RGB] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+)

and chassis ground (-).

4. Select group no. “9”, item no. “10”and change data

value to adjust amplitude “a” to be 2.0 ±0.1V.

[AV-GAMMA ADJUSTMENT]

1. Receive the 16-step grey scale video signal with

Video [Video] mode.

2. Enter the service mode.

3. Connect an oscilloscope to test point “TPG1”(+)

and chassis ground (-).

4. Select group no. “9”, item no. “10”and change data

value to adjust amplitude “a” to be 1.3 ±0.1V.

(a)

white level

112⁄1 Gamma adjustment

-26-

K6K K6M

K8F

IC201

IC3101

TPVS

TP52G TP52B

K8N

IC2101

TPZPSIG

IC3801

TP52R

K5G IC3851

TPG1

IC5201

IC1201

TP12V1

IC1381

IC5341

K5R

IC5351

TPB1

K5B

K8X

TP12V2

K8P

IC801

IC6211

K8A

IC1851

IC1451

K8H

TPR1

K6L K8D

IC401

TPPSIG

TP21R

TP21G

TP21B

TPHS

Electrical Adjustments

MAIN BOARD

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