Rolsen RL-17S10 Service manual

COLOR TFT-LCD TV
SERVICE MANUAL

MODEL : RL-17S10

CAUTION !!

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

RL-17S10 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 ----------------------------------------------------------------- 18

Schematic Diagram ---------------------------------------------------------- 19

Wave Form ---------------------------------------------------------------------- 20

Troubleshooting --------------------------------------------------------------- 25

Replacement Parts List ----------------------------------------------------- 27

PCB Layout --------------------------------------------------------------------- 34

Exploded View ----------------------------------------------------------------- 39

RL-17S10 SERVICE MANUAL

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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

RL-17S10 SERVICE MANUAL

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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.

RL-17S10 SERVICE MANUAL

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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 17.1” TFT-LCD Color TV.

2. Power

1) Power requirement
DC 12V / 5.0A

2) AC / DC Adapter.

Input Frequency : 50/60㎐ ±3㎐
Input Voltage : AC 110V ～ AC 240V (±10%)

Output Voltage : DC 12V

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:H05VV-F, 3-conductors, 18AWG for AC220
~240V area.

3. Tuning system

FS, 181 Channel

4. Sound output

1.5W+1.5Wrms Stereo (Max)

5. Antenna input impedance

VHF / UHF at 75ohm

6. OSD Type (On Screen Display)

Windows type (Center)

7. External in/output

Component, AV, Head Phone, PC, PC sound in

Audio In : 0.4Vrms, over 10KΩ
Video In : 1Vp-p, over 75Ω

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)
ARC(Aspect Ratio Control)

RL-17S10 SERVICE MANUAL

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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

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RL-17S10 SERVICE MANUAL

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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

RL-17S10 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: 31 ～ 68.7 KHz / V : 56 ～ 85㎐

2)Preset Timing Chart

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

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

VGA

SVGA

XGA

DTV

640x480
640x480
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 1024x768 PC video mode to obtain the best image

quality for your LCD TV.

ⓒ 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.

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

RL-17S10 SERVICE MANUAL

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SPECIFICATIONS

12. TFT – LCD Panel Character

1) Feature

Size : 17.1" Diagonal (43Cm)

LCD Type : Color Active Matrix TFT

Pixel Pitch : 0.291mm x 0.291mm

Pixel Format : 1280x768 Pixels, RGB Stripe

Active Video Area : 372.48mm(H) x 223.488mm(V)

Surface treatment : Anti-Glare, Hard coating(3H)

Response Time(Typ) :25ms(Typ)

Viewing Angle<CR≥10> : Hor [Left/Right] Æ 88Deg (Typ) / 88Deg (Typ),

Ver [High(Top)/Low(Bottom)] Æ 88Deg (Typ) / 88Deg (Typ)

Luminance(Typ) : 450 cd/㎡(Typ)

Contrast Ratio(Typ) : 400(Typ)

Display Color : 16,777,216 Color

Back Light : 6 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

Selects programme numbers.

4. PSM (Picture Status Memory)

Recalls your preferred picture setting.

5. SSM (Sound Status Memory)

Recalls your preferred sound setting.

6. TV / AV

Selects TV, COMPONENT, VIDEO,
S-VIDEO or PC mode.
Clears the menu from the screen.

7. MENU

Displays a main menu.

8. I / II

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

9. Q.VIEW

Returns to the previously viewed
channel.

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CONTROL DESCRIPTIONS

A

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

10. PR ▲▼ (Programme Up/Down)

Selects next programme or a menu
item.

11. OK

ccepts your selection or displays the

current mode.

12. VOL ◀▶ (Volumn Up/Down)

Adjusts the sound level or a menu
Setting.

13. SLEEP

Sets the sleep timer.

Note: In Teletext mode, the Sleep button

is used for Teletext function.

14. Teletext buttons

These buttons are used for Teletext.
For further details, see the ‘Teletext’
section.

15. ARC (Aspect Ratio Control)

Selects a screen mode 16:9 or 4:3.

16. SCART

Selects the SCART mode.

17. VIDEO

Selects the VIDEO mode.

18. S-VIDEO

Selects the S-VIDEO mode.

19. PC

Selects the PC mode.

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◎ ◎

Controller of Panel

<SIDE VIEW>

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 sound level or a menu Setting

5. TV/AV

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

6. POWER STAND-BY INDICATOR

Illuminates red when the TV is in power
stand-by mode.
Illuminates green when the TV is switched
power on mode.

7.REMOTE CONTROL SENSOR:

Accepts the IR signal of remote controller.

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