HannStar SV42LMUB User manual

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Document No. LF100-000210 Revision 1.0

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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.

Model Name: SV42LMUB

Model No.: HSG1132

42”W Color LED TV

Service Manual

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Document No. LF100-000210 Revision 1.0

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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.

Copyright

may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any

language or computer language, in any form or by any means, electronic, mechanical, magnetic,

optical, chemical, manual or otherwise, without the prior written permission of HannStar

Corporation.

Disclaimer

HannStar makes no representations or warranties, either expressed or implied, with respect to

the contents hereof and specifically disclaims any warranty of merchantability or fitness for any

particular purpose. Further, HannStar reserves the right to revise this publication and to make

changes from time to time in the contents hereof without obligation of HannStar to notify any

person of such revision or changes.

Trademarks

HannStar is a registered trademark of HannStar Corporation.

All other trademarks used within this document are the property of their respective owners.

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

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TABLE OF CONTENTS

1. Precautions and Safety Notices 4

2. Product Specification 6

3. Front Panel Function Control Description 8

4. Disassembly Procedure 12

5. Adjustment Procedure 20

6. Troubleshooting Flow Chart 39

7. Exploded Diagram and Exploded Parts List 54

8. Block Diagram 56

9. Schematic Diagrams 57

10. PCB Layout Diagrams 79

11. Firmware Update SOP 86

12. FAQ 88

13. EDID Text 91

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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.

1. Precautions and Safety Notices

1.1 Safety Precautions

Installation Safety Notes: Avoid allowing the TV to get prolonged exposure to sunlight or other

strong sources of heat. Leave sufficient distance between the TV and the wall to provide enough

spare space for the emission of heat.

Warning: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or

moisture. Apparatus shall not be exposed to dripping or splashing and no objects filled with

liquids, such as vases, shall be placed on the apparatus.

Caution: These serving instructions are for use by qualified service personnel only. To reduce the

risk of electric shock, do not perform any servicing other than that contained in the operating

instructions unless you are qualified to do so.

Notes:

The LCD TV is for entertainment use only and visual display tasks are excluded.

This device uses a VGA connector to connect to a PC. To reduce the influence of main frequency

of the source signal, use a VGA monitor cable with ferrite shield.

1.2 Product Safety Notice

1. Read these instructions

2. Keep these instructions

3. Heed all warnings

4. Follow all instructions

5. Do not use this apparatus near water.

6. Clean only with dry cloth

7. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other

apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug

has two blades with one wider than the other. A grounding-type plug has two blades and a

third grounding prong. The wide blade or the third prong are provided for your safety. If the

provided plug does not fit into your outlet, consult an electrician for replacement of the

obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience

receptacles, and the point where they exist from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. use only with cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with

the apparatus when a cart is used, use caution when moving the cart/apparatus combination

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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.

to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus

has been damaged in any way, such as power- supply cord or plug is damaged, liquid has

been spilled or objects have fallen into the apparatus, the apparatus has been exposed to

rain or moisture, does not operate normally, or has been dropped.

15. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain

or moisture.

16. The apparatus shall be connected to a MAINS socket outlet with a protective earthing

connection.

17. Where the MAINS plug or an appliance coupler is used as disconnect device, the disconnect

device shall remain readily operable.

18. The apparatus should be used in moderate climate.

19. The apparatus shall not be exposed to dripping or splashing and that no objects filled with

liquids, such as vases, shall be placed on the apparatus.

1.3 Service Notes

 When replacing parts or circuit boards, clamp the lead wires around terminals before

soldering.

 Keep wires away from high voltage, high temperature components and sharp edges.

 Keep wires in their original position so as to reduce interference.

 Adjustment of this product please refers to the user’ manual.

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2. Product Specification

2.1 Front View & Back View

2.2 Physical Specification

2.2.1 Main Features

Features S

p

ecifications

Panel

Maximum Resolution 1920 x1080 (WUXGA)

Back Light System LED

Pixel Pitch 0.1615 (H) x 0.4845 (V)

Display Area 930.24 (H) x 523.26 (V), 42” diagonal

Panel Interface 4-CH LVDS

Brightness 450 cd/m2

(Typical)

Display Color 1.07G

Contrast Ratio 4000׃1 (Typical)

Response Time (Gray to Gray) 4.5ms (Typical)

Viewing Angle (H/V) Hor:176°,Ver:176° (Typical,CR≥10)

I/O Function

Input Interface

TV Tuner x1 (NTSC + ATSC + QAM)

HDMI x5

Component x2 (RCA Type)

PC Input x1 (VGA)

PC Line Input x1

AV x1 (RCA Type)

USB x1 (JPG/MP3/Movie)

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Output Interface

Earphone x1 (3.5mm phone jack, adjustable

volume)

Audio optical output x1

Power Supply

Compatibility AC 100V ~ 240V 50Hz / 60Hz

Audio

Speaker Watts 10W x 2; Woofer 15W x 1

Others

OSD language English/French/Spanish

Video Enhancement

3D De-interlacing, 3D Noise reduction, 3D Comb-filter,

3:2/2:2 Pull down

Aspect ratio Auto/Full/Normal/Subtilte/Zoom/Zoom1

Other Features

Touchpad, Melody, HDMI CEC, Favorite Channel, On/Off

Time, Sleep Time, 24P Cinema, Energy Star 4.0

2.2.2 Input / Output Signal Specifications

2.2.2.1. PC mode signal types

a.VGA : 15 pin D-sub ,0.7 Vp-p linear, positive polarity & separate sync.

( TTL level, positive or negative polarity)/ 75Ω terminated

b.VGA audio : 3.5mm stereo mini-jack

Level: -Nominal : 0.5 V rms.

- Maximum : 2 V rms.

- Impedance > 10 k.

c.HDMI : HDMI connector, Single TMDS link according to DVI 1.0 specification with

High-Definition Content Protection (HDCP) Specification 1.10

d.HDMI audio : VGA 3.5mm Audio Input Alternative

2.2.2.2 Video mode signal types

RF Signal : Aerial input / 10mV(typical: 80dBuV)/ 75Ω terminated unbalance (F type jack)

Video signal : CVBS input ( RCA jack) / 1Vpp (300mV-sync, 700mV-video.)/ 75Ω terminated

Component input/ 1Vpp Y signal, +/-350mV Pb,Pr signal/ 75Ω terminate

HDMI input / High Definition Multimedia interface 1.3a (pass CTS 1.3a

test) with CEC & HDCP, audio included (meet EIA-861D standard).

Audio signal : R/L for AV and Component IN (AV、S-Video and Component).

Level: - Nominal : 0.5 V rms.

- Maximum : 2 V rms.

- Impedance > 10 k.

2.2.2.3 Main Speaker : Speaker output : 2 x 10 Wrms(±0.5dB), and T.H.D. ≤ 10%.

Woofer output : 10W x 2 @1KHz (8 Ohms),15W x 1 Woofer

2.2.2.4 Headphone : Audio : R/L output 135 mV +/- 10% (±3dB) at 32 ohm.

3.5mm stereo jack with switch

Impedance is between 8 and 600 ohm .

2.2.2.5 USB :

A type.

Support JPEG , MP3, Movie format.

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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.

Parameter Min. Typ. Max. Unit

Supply Voltage +4.75 +5.0 +5.25 V

Output Current 500 mA

2.2.2.6 IF Input / Output Placement

2.2.3 Panel SPEC

Supplier INL

Model name

V420 H1-LE1

Display Area 937.24(H) x 530.26(V)

Pixel Pitch 0.1615(H) x 0.4845(V)

Number of Pixel 1920 x R.G.B. x 1080

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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.

Brightness 450 cd/m² (Typ)

Contrast Ratio Typical: 4000:1

Viewing Angle Hor: 88°, Ver: 88° (Typical, CR>=20)

Color Saturation (72%) (Typ.)

Frame rate 120Hz

Response Time(Tr+Tf) 4.5 ms (Typical)

Surface Treatment Anti-Glare, Haze=25%, Hard coating (3H)

Backlight LED

Brightness uniformity 0.71(Min.) 1.4 (Max)

Weight (g) 8600g

RoHS RoHS

2.2.4 Optical characteristic of LCD panel

Item Symbol Conditions Min. Typ. Max. Remark

Red X 0.645

Red Y 0.335

Green X 0.302

Green Y 0.624

Blue X 0.142

Color

Chromaticity(CIE)

Blue Y 0.064

White X 0.313

Color Coordinates

(CIE) White

White Y

θ= 0∘

-0.03

0.329

+0.03

White Variation δW

0x=0°,0y=0°

viewing angle

at normal direction

- 0.8 1.4

Brightness

(Center)

Yl[cd/m

2

] 360 450 -

2.2.5 LVDS Output Connector

Pin NO. Symbol Description

1 GND GND

2 SIS_MS_SDA_A I2C data

3 SIS_MS_SCL_A I2C clock

4 GND GND

5 SIS_LVDSA_TX0_DP LVDS port A data 0+

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6 SIS_LVDSA_TX0_DN LVDS port A data 0-

7 GND GND

8 SIS_LVDSA_TX1_DP LVDS port A data 1+

9 SIS_LVDSA_TX1_DN LVDS port A data 1-

10 GND GND

11 SIS_LVDSA_TX2_DP LVDS port A data 2+

12 SIS_LVDSA_TX2_DN LVDS port A data 2-

13 GND GND

14 SIS_LVDSA_TX3_DP LVDS port A data 3+

15 SIS_LVDSA_TX3_DN LVDS port A data 3-

16 GND GND

17 SIS_LVDSA_TX4_DP LVDS port A data 4+

18 SIS_LVDSA_TX4_DN LVDS port A data 4-

19 GND GND

20 SIS_LVDSA_CLK_DP LVDS port A clock +

21 SIS_LVDSA_CLK_DN LVDS port A clock -

22 GND GND

23 SIS_LVDSB_CLK_DP LVDS port B clock +

24 SIS_LVDSB_CLK_DN LVDS port B clock -

25 GND GND

26 SIS_LVDSB_TX0_DP LVDS port B data 0+

27 SIS_LVDSB_TX0_DN LVDS port B data 0-

28 GND GND

29 SIS_LVDSB_TX1_DP LVDS port B data 1+

30 SIS_LVDSB_TX1_DN LVDS port B data 1-

31 GND GND

32 SIS_LVDSB_TX2_DP LVDS port B data 2+

33 SIS_LVDSB_TX2_DN LVDS port B data 2-

34 GND GND

35 SIS_LVDSB_TX3_DP LVDS port B data 3+

36 SIS_LVDSB_TX3_DN LVDS port B data 3-

37 GND GND

38 SIS_LVDSB_TX4_DP LVDS port B data 4+

39 SIS_LVDSB_TX4_DN LVDS port B data 4-

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40 GND GND

41 SEL_R (Reserve)

42 SELLVDS_R LVDS format select

43 ODSEL_R Panel over drive select

44 GND GND

45 GND GND

46 GND GND

47 GND GND

48 V_12_LCD Panel power

49 V_12_LCD Panel power

50 V_12_LCD Panel power

51 V_12_LCD Panel power

2.2.6 Panel Power Sequence

No.

Symbol Description

1 +24V Converter Power

2 +24V Converter Power

3 +24V Converter Power

4 +24V Converter Power

5 +24V Converter Power

6 GND Ground

7 GND Ground

8 GND Ground

9 GND Ground

10 GND Ground

11 STATUS Normal (3.3V), Abnormal (0V)

12 Brightness Backlight Brightness Control Signal

13 NA NA

14 Backlight On/off Backlight On/off Control Signal

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2.3 Support Timing

2.3.1VGA / HDMI (DVI)

For non-supported VGA/HDMI (DVI) timings, should display the black screen with

a text of “Unsupported Mode”. The criteria are shown as follows.

Horizontal Frequency (KHz) < 10 > 100

Vertical Frequency (Hz) < 40 > 90

Vertical Total Pixel < 100 > 1260

Resolution

(active dot)

Horizontal

Frequency (KHz)

Vertical

Frequency

(Hz)

Nominal Pixel

Clock (MHz)

640 x 480 @60Hz 31.469 59.941 25.175

640 x 480 @72Hz 37.861 72.809 31.500

640 x 480 @75Hz 37.500 75.000 31.500

800 x 600 @60Hz 37.879 60.317 40.000

800 x 600 @72Hz 48.077 72.188 50.000

800 x 600 @75Hz 46.875 75.000 49.500

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832 x 624 @75Hz 49.722 74.546 57.280

1024 x 768 @60Hz 48.363 60.004 65.000

1024 x 768 @70Hz 56.476 70.069 75.000

1024 x 768 @75Hz 60.023 75.029 78.750

1152x864@75Hz 67.500 75.000 108.000

1152x870@75Hz 68.681 75.062 100.000

1280x1024@60Hz 63.981 60.020 108.000

1280x1024@75Hz 79.976 75.025 135.000

1360x768@60Hz 47.700 60.000 85.500

1440x900@60Hz 55.935 59.887 106.500

1440x900@75Hz 70.635 75.000 136.750

1680x1050@60Hz 65.290 59.954 146.250

1920x1080 Reduced 66.587 59.934 138.500

1920x1080@60Hz 67.500 60.000 148.500

640 x 350 @70Hz 31.469 70.086 25.175

2.3.2 YPbPr (Component)

Resolution

Pixel Clock

(MHz)

Hsync

(kHz)

Vsync

(Hz)

480i 720 x 480 13.5 15.73 60

480p 720 x 480 27 31.47 60

720p 1280 x 720 74.25 44.96 60

1080i 1920 x 1080 74.25 33.72 60

576i 1920 x 1080 148.5 67.5 60

576p 1920 x 1080 74.25 27 24

1080P 1920 x 1080 74.25 33.75 30

2.3.3 HDMI (Video Mode)

Resolution

Pixel Clock

(MHz)

Hsync

(kHz)

Vsync

(Hz)

480i 720 x 480 27.00 15.73 60

480p 720 x 480 27.00 31.47 60

720p 1280 x 720 74.25 44.96 60

1080i 1920 x 1080 74.25 33.72 60

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1080P 1920 x 1080 148.50 67.50 60

1080P 1920 x 1080 74.25 27 24

1080P 1920 x 1080 74.25 33.75 30

2.3.4 AV

Resolution Pixel Clock MHz Hsync KHz Vsync Hz

NTSC 480i 13.50 15.73 60

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3. Front Panel Function Control Description

3.1 Button Description & Function Instruction

User Control: 7 buttons at the side of the TV (from Down to Up).

Description Button Function

Power

Power button. Press to turn the TV on or

off.

Input Source INPUT Press to open the input source list.

Menu MENU Press to open the OSD menu.

Channel Select CH ▲

Press to increase the channel number or

move upward to the previous item on the

OSD menu.

Channel Select CH ▼

Press to decrease the channel number or

move downward to the next item on the

OSD menu.

Volume Adjust VOL ▲

Press to increase the channel number or

move upward to the previous item on the

OSD menu.

Volume Adjust VOL ▼

Press to decrease the channel number or

move downward to the next item on the

OSD menu.

3.2 Function of Remote Control Button

Remote Control Electrical Specifications

 Custom Code and Key Code Format Definition

Transmission format: NEC 2Packet

Carrier Frequency: 37.9 kHz

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No. Key Function Description

1

Standby/ On

Switches the TV to on if the TV set is

standby. Switches the TV to standby if the

TV set is on.

2

Input Selects a connected device.

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3

Numeric

buttons

Selects a channel or setting.

Displays program information.

4

Last Returns to a previous channel.

5

Information Displays program information.

6

Menu Open/Close Main menu

7

Navigation and

OK

Use up/down/left/right key to navigate

menu and OK key to select.

8

DTV source display EPG guild

9

Return Return last layer OSD

10

Volume

up/down

Increases or decreases volume.

11

Channel

up/down

Switches to the next ot previous channel.

12

Mute Mutes sound output.

13

MTS

ATV Source:

Change TV sound to mono, stereo or SAP

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mode. (Multi Channel Television Sound)

DTV Source:

Change audio language

14

Favorite My favorite

15

Aspect Aspect ratio

16

Sleep Sleep function On/ Off and time setting

17

Closed caption Closed caption function control

18

N/A(DVD use)

19

N/A(DVD use)

20

Support Universal RC

3.3 Hot Key Function Instruction

Factory Mode: non-support hotkey.

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4. Disassembly Procedure

Step 1. Remove the Base Assy.

Remove the 4 screws, detach the base .

Step 2. Remove the REAR COVER Assy.

Remove the 25 screws，2 bolt，1 tune nut ，1 rubber washer and the power cable cover. Detach

the REAR COVER.

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Step 3. Remove the MEMC board ,IR board,woofer

Remove the 7 ACE tape,2 foil,16 screw.Disconnect all cable include power cable, Detach the

MEMC board ,IR board,woofer and Power cable holder.

Step 4. Remove the main chassis and speaker.

Remove the 8 screw. Detach main chassis and speaker.

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