Rolsen RL-20S10 Service manual

LCD TV

Service Manual

Chassis MST9E19

Rolsen

RL-26B01

Contents

Contents.................................................................................................................... 2

1. Product Safety Servicing Guidelines ................................................................... 3

2. Product Function Specifications.......................................................................... 5

3. Lcd Panel Spec...................................................................................................... 6

3-1 General Description................................................................................... 6

4. Block Diagram ...................................................................................................... 7

4-1 Main board ................................................................................................... 7

4-2 Power board ............................................................................................... 8

5. Service Mode And Adjustment ............................................................................ 9

6. Software Updating ............................................................................................. 13

6-1、Updating Tool .......................................................................................... 13

6-2、Software Updating Operation................................................................. 14

7. Troubleshooting ................................................................................................. 24

8. Ciruit Diagram .................................................................................................... 25

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1. Product Safety Servicing Guidelines

WARNING:

Service should not be attempted by anyone unfamiliar with the necessary precaution on this receiver. The following are the necessary precaution to be observed before serving this chassis.

1. Since the power supply circuit of this receiver is directly connected to the AC power line, an Isolation transformer should be used during any dynamic service to avoid possible shock hazard.

2. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as: non-metallic control knobs, insulating cover, shields, isolation resistor-capacitor network etc.

3. When replacing parts or circuit boards, disconnect the power cord.

4. When replacing a high wattage resistor (oxide metal film resistor) on the circuit board, keep the resistor (1/2in) away from circuit board.

5. Connection wires must be kept away from components with high voltage or high temperature.

6. If any fuse in this LCD TV receiver is blown, replace it with the FUSE specified in the chassis part list.

The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the set.

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Many electrical and mechanical parts in the chassis have special safety-related characteristics. These characteristics are often passed unnoticed by a visual inspection. When replacement parts are required, be sure the service technician uses replacement parts specified by us that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock and injury to persons or other hazards. This LCD TV product should be situated away from heat source such as radiation, stoves, or other product that produce heat.

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2 Product Function Specifications

Refer to the User’s manual

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3. LCD Panel Spec

3-1 General Description

These Panel is a TFT LCD module supports 1366 x 768 WXGA format and can display true 16.7M colors (8-bit colors).

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4.

Block Diagram

4-1 Main board

1)26’’ and 32’’ with AV2 in/AV out interface

2) 26’’ and 32’’ with SCART interface

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4-2 Power board

1) Power board of 26’’ and 32

2)Another Power board of 26’’ and 32

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5. Service Mode And Adjustment

LCD****: Use the remote control, first open MAIN MENU with MENU button, and choose PICTURE with the CHANNEL UP/DOWN button, then choose the Brightness with VOLUME UP, while Brightness value is 50, press 0、5、

3、2,you can enter factory menu.

LCD****EU: Use the remote control, first open MAIN MENU with MENU button, and choose SOUND with the CHANNEL UP/DOWN button, then choose the Balance with VOLUME UP, while Balance value is 0, press 0、5、

3、2,you can enter factory menu.

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Fac. Menu

Note:

1) We have set the best value before delivery.

2) Do not change any item except the following sheets.

Factory Menu White Balance

White Balance

Auto Test

Auto Calibration

LOGO

OSD Language

Country

Option

Factory Init

Test Pattern

Version:

White Balance: To change white balance

R DRV 10

G DRV 10

B DRV 10

R CUT 128

G CUT 128

B CUT 128

BRIGHT_H 80

CONTRAST _H 80

BRIGHT_L 40

CONTRAST_L 40

Auto Calibration

Auto Color

Color Temp. Standard

RED COLOR 128

GREEN COLOR 128

BLUE COLOR 128

LOGO

NULL

HISENSE

WELCOME

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Option

SOURCE TV

BRIGHT 0 10

BRIGHT 50 100

BRIGHT 100 135

CONTRAST 0 60

CONTRAST 50 125

CONTRAST 100 155

TOFAC M

HDMI Cable Standard

Design Menu

Picture Mode

Sound Mode

Sound Settings

Power Save

PIP Option

EMI

MOVESHARPNESS

LipSync

Factory Init

QingDao

HuangDao

Guiyang

Hungary

France

Austria

CLEAR PROTECTLY

CLEAR UNPROTECTLY

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Picture Mode

Standard Brightness 50

Contrast 50

Colour 50

Bright Brightness 60

Contrast 60

Colour 55

Soft Brightness 45

Contrast 45

Colour 45

Sound Mode

Standard 120Hz 12

500Hz 10

1.5KHz 11

5KHz 8

10KHz 15

Music 120Hz 19

500Hz 11

1.5KHz 12

5KHz 14

10KHz 20

Speech 120Hz 4

500Hz 10

1.5KHz 12

5KHz 7

10KHz 5

Sound Settings

VOLUME 0 128

VOLUME 1 79

VOLUME 20 36

VOLUME 40 31

VOLUME 100 17

TVPRE SCALER 2

VOLUME SCALER 0

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6. Software Updating

6-1、Updating Tool

- You can update the software through a special tool (show as below)

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6-2、Software Updating Operation

1、Connect the Debug board to the TV use VGA interface, then connect the

Debug board to the computer, just as the pictures showing.

2．Set the ISP_TOOL4.0.9 -------only for the first time update.

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DLPORTIO.dll and FTD2XX.DLL must be in the same folder

1) Find the folder where the ISP_TOOL4.0.9 lies in.

Note: DLPORTIO.dll and FTD2XX.DLL must be in the same folder.

2) Double click the ISP_TOOL4.0.9 icon, and then a dialog will show as below.

3) Click the Config button. And then a dialog will show as below.

You should set the Config like what the picture shows.

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- 16 -


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4) After you have finished all above, you should click the Apply button to complete the configuration.

3. Turn on the TV, then we can update.

4. Double click the ISP_TOOL4.0.9 icon, and then a dialog will show as below.

5. Click the Read button. And then do as shown below.

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- 19 -


6. Find the update file in your computer.

7. Double click the update file. A dialog will show as below.

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8. Click the Auto button. And then do as shown below.

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9. Click the Connect button. And then do as shown below.

10. Click the Run button.

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11. When the update is finished, a dialog will show as below.

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7. Troubleshooting

No.

1

2

3

4

5

6

7

Trouble Measure

Turn on the TV, The LED is red, no display on screen

Turn on the TV, The LED is blue, but no picture or/and no sound

In TV state, can not to tuning You should replace the main board.

No teletext You should replace the main board.

No sound

Replace the main board or updating the software.

You should replace the main board. can not to updating software

You should replace the main board.

You should replace the main board

No reaction with PC You should replace the main board

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8. Circuit Diagram

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- 26 -


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Rolsen RL-20S10 Service manual

LCD TV

Service Manual

Contents

1. Product Safety Servicing Guidelines

2 Product Function Specifications

Refer to the User’s manual

3. LCD Panel Spec

3-1 General Description

4.

5. Service Mode And Adjustment

Factory Menu White Balance

White Balance: To change white balance

Auto Calibration

LOGO

6. Software Updating

6-1、Updating Tool

6-2、Software Updating Operation

7. Troubleshooting

8. Circuit Diagram

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