Rolsen RL-30S10 Service Manual

COLOR TFT-LCD TV
SERVICE MANUAL

MODEL : RL-30S10

CAUTION !!

BEFORE SERVICING THE TFT-LCD TV,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

30INCH LCD SERVICE MANUAL

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CONTENTS

Contents ------------------------------------------------------------------------ 2

Safety Precautions ---------------------------------------------------------- 3

Servicing Precautions ------------------------------------------------------ 4

Specifications ----------------------------------------------------------------- 5

Control Descriptions -------------------------------------------------------- 10

External In/Out Ports ------------------------------------------------------- 13

Adjustment -------------------------------------------------------------------- 14

Block Diagram ---------------------------------------------------------------- 19

Schematic Diagram --------------------------------------------------------- 20

Wave Form --------------------------------------------------------------------- 21

Troubleshooting -------------------------------------------------------------- 32

Replacement Parts List ---------------------------------------------------- 37

PCB Layout -------------------------------------------------------------------- 47

Exploded View ---------------------------------------------------------------- 52

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SAFETY PRECAUTIONS

!! Important Safety Notice !!

Many electrical and mechanical parts in this chassis have special safety-related
characteristics.
These parts are identified by in the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components
as recommended in this manual to prevent Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth
ground (Water Pipe, Conduit, etc.) and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more
sensitivity.
Reverse plug of the AC cord into the AC outlet and repeat AC voltage measurements for each
exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS, which is,
corresponds to 0.5mA.
In case any measurement is out of the limits specified, there is possibility of shock hazard and
the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

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SERVICING PRECAUTIONS

CAUTION!!

Before servicing receivers covered by this service manual, read and follow the SAFETY
PRECAUTIONS on page 3 of this publication.

General Servicing Precautions

1.Always unplug the receiver AC power cord from AC power source before;

ⓐRemoving or reinstalling any component, circuit board module or any other receiver assembly.
ⓑDisconnecting or reconnecting any receiver electrical plug or other electrical connection.
ⓒConnecting a test substitute in parallel with an electrolytic capacitor in the receiver.

CAUTION!! A wrong part substitution or incorrect polarity installation of electrolytic capacitors

may result in an explosion harzard.

2.Do not spray chemicals on or near this receiver or any of its assemblies.

3.Do not defect any plug/socket voltage interlocks with which receivers covered by this service
manual might be equipped.

4.Always connect the test receiver ground lead to the receiver chassis ground before
connecting the test receiver positive lead. Always remove the test receiver ground lead last.

5.Do not connect the test fixture ground strap to power supply heatsink in this receiver

Electrostatically Sensitive(ES) Devices

Some semiconductor(solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatically Sensitive(ES) Device.Examples

Circuit Board Foil Repair

Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive
that bonds the foil to the circuit board causing the foil th separate from or “lift-off” the board.
The following guidelines and procedures should be flollowed whenever this condition is
encountered.

At IC Connections

To repair a defective copper pattern at IC connections use the following procedure to install a
jumper wire on the copper pattern side of the circuit board.(Use this technique only on IC
connections.)

1.Carefully remove the damaged copper pattern with a sharp knife.(Remove only as much
copper as absolutely necessary.)

2.Carefully scratch away the solder resist and acrylic coating(if used) from the end of the
remaining coopper pattern.

3.Bend a small “U” in one end of a small guage jumper wire and carefully crimp it around the IC
pin.

4.Route the jumper wire along the path of the out-away copper pattern and let it overlap the
previously scraped end of the good copper pattern. Solder the overlapped area and clip off any
excess jumper wire.

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SPECIFICATIONS

Note: Specifications and others are subject to change without notice for improvement.

1.Scope.

This document is the specification of 30” TFT-LCD Color TV.

2.Power

1) Power requirement DC 24V / 6.0A

2)AC / DC Adapter.

Input Frequency : 50/60㎐
Input Voltage : AC 100V ～ AC 240V (±10%)

Output Voltage : DC 24V

3)Power cord
Use UL listed and CSA certified detachable power cord type ;SVT, 3-conductors, 18AWG
For AC 120V area. Use VDE listed detachable power cord type ;HO5VV-F, 3-conductors,

18AWG for AC 220～240V area.

3.Tuning system

FS, 181 Channel

4.Sound output

10W+10Wrms Stereo (Max)
20W+20Wrms Stereo (Max)

5.Antenna input impedance

VHF / UHF at 75ohm

6.OSD Type (On Screen Display)

Windows type (Center)

7.External in/output

Wofer Sound out,SCART1/VIDEO, SCART2/COMPONENT, S-Video, AV Sound In,
Head Phone, PC-Souns In, PC-Analog, PC-Digital

8.Function

CATV/Hyper band
Auto Program
Manual Program
Auto Sleep
Quick view
ACMS(Auto channel Memory System)
PSM(Picture Status memory)
SSM(Sound Status memory)

PIP(PICTURE I RICTURE)
ARC(ASPECT RATIO CONTROL)

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9.Receiving RF TV system

NO

Model System
1 PAL-B
2 PAL-G
3 PAL-I, I /I
4 PAL-D
5 PAL-K
6 SECAM-B
7 SECAM-G
8 SECAM-D
9 SECAM-K

10 SECAM-K1
11 SECAM-I (6.0)
12 NTSC-3.58 / 4.5
13 NTSC-3.58 / 5.5
14 NTSC-3.58 / 6.0
15 NTSC-3.58 / 6.5
16 NTSC-3.58 / 4.5(5.0)
17 NTSC-4.43 / 5.5
18 NTSC-4.43 / 6.0
19 NTSC-4.43 / 6.5
20 PAL 5.5 / 60Hz
21 PAL 6.0 / 60Hz
22 PAL 6.5 / 60Hz
23 SECAM 5.5 / 60Hz
24 SECAM 6.0 / 60Hz
25 SECAM 6.5 / 60Hz
26 SECAM L / L' X

TOTAL SYSTEM 25

SPECIFICATIONS

RL-30S10 / /

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SPECIFICATIONS

y

y

10.Receiving function & channel

NO Receiving System Function Receiving Channel

1 PAL-B

2 PAL-G

3 PAL- I, I / I

4 PAL-D

5 PAL-K

6 SECAM-B

7 SECAM-G

8 SECAM-D

9 SECAM-K

10 SECAM-K1

Reception of broadcast

and play-back for Video

Tape Recorder

NTSC-M (JAPAN) : 1-12

NTSC-M (JAPAN) : 13-62

VHF Band

NTSC-M (US) : 2-13

UHF Band

NTSC-M (US) : 14-78

11 NTSC-M

12 SECAM-L / L'

13 NTSC-4.43 / 5.5

14 NTSC-4.43 / 6.0

15 NTSC-4.43 / 6.5

16 SECAM-I (6.0MHz)

17 SECAM-L (VIDEO IN)

18 NTSC 3.58 / 4.5MHz / 50Hz

19 PAL 5.5MHz / 60Hz

20 PAL 6.0MHz / 60Hz

21 PAL 6.5MHz / 60Hz

22 SECAM 5.5MHz/60Hz

23 SECAM 6.0MHz/60Hz

24 SECAM 6.5MHz/60Hz

Play-back for special

Video Tape Recorder

Play-back for special

Video Tape/Video disk

player

NTSC 3.58/4.5MHz/60Hz onl

NTSC 3.58/4.5MHz/60Hz onl

25 NTSC-3.58 / 5.5MHz

26 NTSC-3.58 / 6.0MHz

27 NTSC-3.58 / 6.5MHz

30INCH LCD SERVICE MANUAL

Play-back for special

Video Tape Recorder

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SPECIFICATIONS

11. PC/DTV Mode Scan Frequency & Timing

1)Scan Freq : H: 15 ～ 110 kHz / V : 56 ～ 85㎐

2)Preset Timing Chart

Mode Resolution H-Freq(Khz) V-Freq(Khz)

640x480
640x480

VGA

SVGA

XGA

D-TV

640x480
640x480
720x400
800x600
800x600
800x600
800x600

800x600
1024x768
1024x768
1024x768
1024x768

1920x1080i

1280x720i

720x480p

Note!! :

ⓐ If the set is cold, there may be a small “flicker” when the set is switched on. This is

Normal, there is nothing wrong with the set.

ⓑ if possible, use the VESA 640x480 PC video mode to obtain the best image quality for

your LCD TV. If used under the other resolutions, some scaled or processed pictures may
appear on the screen.

ⓒ some dot defects may appear on the screen, like Red, Green or Blue spot. However, this

will have no impact or effect on the monitor performance.

31.5KHz

37.9KHz

37.5KHz

43.3KHz

31.5KHz

35.1KHz

37.9KHz

48.1KHz

46.9KHz

53.7KHz

48.4KHz

56.5KHz

60.2KHz

68.7KHZ

33.8KHz
45KHz

31.5KHz

60Hz
72Hz
75Hz
85Hz
70Hz
56Hz
60Hz
72Hz
75Hz
85Hz
60Hz
70Hz
75Hz
85HZ
60Hz
60Hz
60Hz

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SPECIFICATIONS

12. TFT – LCD Panel Character

1) Feature

Size : 29.53 inches (750.062mm) diagonal

LCD Type : Color Active Matrix TFT

Pixel Pitch : 0.5025mm x 0.1675 x RGB

Pixel Format : 1280 horiz. By 768 vert. Pixels RGB strip arrangement

Active Video Area : 643.2mm(H) x 385.92mm(V)

Surface treatment : Hard coating(3H) Anti-glare treatment of the front polarizer

Response Time(Typ) : 25Ms (Typ)

Viewing Angle<CR≥10> : Hor [Left/Right] Æ 85Deg (Typ) / 85Deg (Typ),

Ver [High(Top)/Low(Bottom)] Æ 85Deg (Typ) / 85Deg (Typ)

Luminance(Typ) : 450 cd/㎡(Typ)

Contrast Ratio(Typ) : 350(Typ)

Display Color : 16.7M Color

Back Light : 16 CCFL

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CONTROL DESCRIPTIONS

All the function can be controlled with the remote controller.
Some functions can also adjusted with the buttons on the controls on the TV front panel.

Remote controller
Note !! : Before you use the remote controller, please install the batteries.

1.POWER:

Turns the TV on from standby or off to
standby mode.

2.MUTE:

Turns the sound on and off

3.NUMBER buttons:

Select channel numbers.

4.PSM (Picture Status Memory):

Recalls your preferred picture setting.

5.SSM (Sound Status Memory):

Recalls your preferred sound setting.

6. I / II:

Selects the language during dual
language broadcast. / Selects the
sound output.

7.MENU:

Displays a main menu.

8.TV / AV:

Selects input signal source.
/ Clears the menu from the screen.

9.SLEEP:

Sets the sleep timer.

10.TV / PC :

Selects TV or PC mode directly.

※Note!! Disabled-PDI-P20LCD Does

not support PC mode.

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CONTROL DESCRIPTIONS

Remote controller
Note !! : Before you use the remote controller, please install the batteries.

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◎ ◎

Controller of Panel

< SIDE VIEW>

30INCH LCD SERVICE MANUAL

CONTROL DESCRIPTIONS

1.ON/OFF:

Switches TV set on or off.

2.MENU:

Display a menu.

3.+ PR - ( Programme Up/Down):

Selects a programme or a menu item.

4.+ VOL -( Volume Up/Down):

Adjusts the volume.
Adjusts menu settings.

5.TV/AV:

Selects input signal source.
Clears the menu from the screen.

6:POWER INDICATOR:

Illuminates red when the TV is in­power standby mode.
Illuminates green when the TV is­switched power on mode.
Illuminates amber when the TV is­switched power saving mode.

7.REMOTE CONTROL SENSOR:

Accepts the IR signal of remote
controller.

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External IN / OUT

EXTERNAL IN/OUT PORTS

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ADJUSTMENT

1.Safety Precautions

1. Never disconnect leads while the TV receiver is on.

2. Don't short any portion of circuits while power is on.

3. The adjustment must be done by the correct appliances. But this is changeable in view
of productivity.

4. Unless otherwise noted, set the line voltage to 230Vac 10%, 50Hz ./ 110Vac, 60Hz

2.Test Equipment required

1. RF signal generator (with pattern generator)

2. Multi meter (volt meter)

3. Oscilloscope

4. LCD Color analyzer

3.RF AGC (Automatic Gain Control) Adjustment
Note!! Adjust a RF AGC of world standard tuner only.
2 in 1 tuner need not AGC adjust.

The RF AGC was aligned at the time of manufacture for optimum performance over a wide
range conditions. Readjustment of RF AGC should not be necessary unless unusual local
conditions exist, such as ;

1) Channel interference in a CATV system.

2) Picture bending and/or color beats, which are unusually due to excessive RF signal

input when the receiver is too close to a transmitting tower or when the receiver is
connected to an antenna distribution system where the RF signal has been amplified. In
this case, the input signal should be attenuated (with pad or filter) to a satisfactory level.

3) Picture noise caused by "broadcast noise" or weak signal. If the broadcast is "clean"

and the RF signal is at least 1mV (60dBu), the picture will be noise free in any area.

Adjusting RF AGC to one end of rotation will usually cause a relatively poor signal to noise
ratio; Adjusting to the other end of rotation will usually cause a degradation of over load
capabilities resulting in color beats or adjacent channel interference.

Adjustment Note!!

1. Connect RF signal (65dB± 0.5dB) and turn on the TV.

2. Press MENU buttons on TV set and Remote Controller at the same time to get into
SVC mode.

3. Press YELLOW button on the Remote Controller several times to find AGC.

4. Press Volume UP/DOWN button until the AGC Voltage is the same as the Table
below.

5. Press OK button to memorize the data.

6. Press TV/AV button to exit SVC mode.

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ADJUSTMENT

4.SVC Data Adjustment
NOTE!! When the EEPROM has been replaced, the SVC data should be restored as the

function of individual system and specification.

1) Press 5 Seconds MENU buttons on both TV set and Remote Controller at the same
time to get into SVC mode.

2) Press the Yellow button several times to find SVC Data.

3) Input the corresponding SVC data referring to Table below with the Volume Up/down
key.

4) Press the OK button to memorize the data.

5) Press TV/AV button to exit SVC mode

5.SVC Data Table

PAGE ITEM VALUE1 VALUE2

DATA 1

DATA 2

DATA 3

AGC
RD
GD
BD
RO
GO
BO
PC CP
50 PR * * means current program NO.
FP
NP
SP
S1 VOL
S2 VOL
50 PR * * means current program NO.

200PR 0

TEXT 1

TOP 1

SCART 0

ACMS 1

CH+AU 0

SYS 2

50 PR *
106 Opt 1

15
127
127
127

79

79

79

5

21

89

50
105
105

0 BG/I/DK
1 BG/I/DK/L
2 BG/I/DK/M

0 100PR
1 200PR
0 Not apply to TEXT
1 Apply to TEXT
0 TELETEXT TOP OFF
1 TELETEXT TOP ON
0 Apply to COMPONENT
1 Apply to SCART
0 Not apply to ACMS
1 Apply to ACMS
0 Used except for CHINESS or AUSTRALIA
1 Used CHINESS or AUSTRALIA

Variable Data(0-31)
PC Contrast Coefficient-RED(0-255)
PC Contrast Coefficient-GREEN(0-255)
PC Contrast Coefficient-BLUE(0-255)
PC Brightness Coefficient-RED(0-63)
PC Brightness Coefficient-GREEN(0-63)
PC Brightness Coefficient-BLUE(0-63)
PC Charge Pump(0-7)

FM Prescaler(0-127)
NICAM Prescaler(0-127)
SCART Prescaler(0-127)
SCART1 Volume(0-127)
SCART2 Volume(0-127)

SYSTEM OPTION

* means current program NO.
Translate HEX into DEC(DATA3VALUE1)

REMARK

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ADJUSTMENT

5-1 .SVC Data Table

PAGE ITEM VALUE1 VALUE2

0
1
0 Not apply to MONO option

1 Apply to MONO option
0 Not apply to NICAM STEREO option
1 Apply to NICAM STEREO option
0 Sound curve option 1
1 Sound curve option 2

DATA 4

DUAL 0

MONO 0

A2 ST 1

VOL 1

0 ENG ONLY ENGLISH ONLY

1 EU-5EA

2 EU CIS EU-5EA + CIS

LANG 2

3 E+CHINA ENGLISH + CHINESS
4 E+HUNGARY ENGLISH+ HUNGRAY
5 RESERVED
6 RESERVED
7 RESERVED

0 WEST EU

REMARK

Not apply to DUAL option
Apply to DUAL option

ENGLISH/GERMAN/FRANCE/ITALY/
SPAIN

WEST EU U.K/GERMAN
/FRANCE/ITALY/SPAIN/
SWEDEN/CZECH Rep./
NORWAY etc

DATA 5

1 EAST EU1 POLAND/SLOVENIA/ROMANIA etc
2 TURKEY EU TURKEY
3 EAST EU2 HUNGRY/SERVIA
4 CYRILLIC1 ESTONIA
5 CYRILLIC2 ESTONIA

T-LAN 6

50 PR *
57 Opt 2

FVS 1

DVI 1
D-TV
VCHIP
WOFER 1

6 CYRILLIC3

7 TURK GRE1
8 TURK GRE2

9 TURK GRE3 TURKEY/GREECE
10 ARAB ERA
11 ARAB ENG ARAB CULTURE
12 ARAB HEB1
13 ARAB HEB2 ARAB/HEBREW
14 FARS ENG PARSI
15 FARS FRA
16 FARS ALL

RUSIA/UKRAINE/ESTONIA/CROATI
A/KAZAKHSTAN

* means current program NO.
Translate HEX into DEC(DATA4)
Frequency voltage
Disable/Enable(0-1)
Fix (All Model application)
D-TV Disable/Enable (0-1)
Violence Disable/Enable (0-1)
Fix (All Model application)

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